unix/gtkdlg.c

   1 /*
   2  * gtkdlg.c - GTK implementation of the PuTTY configuration box.
   3  */
   4
   5 #include <assert.h>
   6 #include <stdarg.h>
   7 #include <ctype.h>
   8 #include <time.h>
   9
  10 #include <gtk/gtk.h>
  11 #if !GTK_CHECK_VERSION(3,0,0)
  12 #include <gdk/gdkkeysyms.h>
  13 #endif
  14
  15 #define MAY_REFER_TO_GTK_IN_HEADERS
  16
  17 #include "putty.h"
  18 #include "gtkcompat.h"
  19 #include "gtkcols.h"
  20 #include "gtkfont.h"
  21 #include "gtkmisc.h"
  22
  23 #ifndef NOT_X_WINDOWS
  24 #include <gdk/gdkx.h>
  25 #include <X11/Xlib.h>
  26 #include <X11/Xutil.h>
  27 #endif
  28
  29 #ifdef TESTMODE
  30 #define PUTTY_DO_GLOBALS               /* actually _define_ globals */
  31 #endif
  32
  33 #include "storage.h"
  34 #include "dialog.h"
  35 #include "tree234.h"
  36 #include "licence.h"
  37
  38 #if GTK_CHECK_VERSION(2,0,0)
  39 /* Decide which of GtkFileChooserDialog and GtkFileSelection to use */
  40 #define USE_GTK_FILE_CHOOSER_DIALOG
  41 #endif
  42
  43 struct Shortcut {
  44     GtkWidget *widget;
  45     struct uctrl *uc;
  46     int action;
  47 };
  48
  49 struct Shortcuts {
  50     struct Shortcut sc[128];
  51 };
  52
  53 struct uctrl {
  54     union control *ctrl;
  55     GtkWidget *toplevel;
  56     GtkWidget **buttons; int nbuttons; /* for radio buttons */
  57     GtkWidget *entry;         /* for editbox, filesel, fontsel */
  58     GtkWidget *button;        /* for filesel, fontsel */
  59 #if !GTK_CHECK_VERSION(2,4,0)
  60     GtkWidget *list;          /* for listbox (in GTK1), combobox (<=GTK2.3) */
  61     GtkWidget *menu;          /* for optionmenu (==droplist) */
  62     GtkWidget *optmenu;       /* also for optionmenu */
  63 #else
  64     GtkWidget *combo;         /* for combo box (either editable or not) */
  65 #endif
  66 #if GTK_CHECK_VERSION(2,0,0)
  67     GtkWidget *treeview;      /* for listbox (GTK2), droplist+combo (>=2.4) */
  68     GtkListStore *listmodel;  /* for all types of list box */
  69 #endif
  70     GtkWidget *text;          /* for text */
  71     GtkWidget *label;         /* for dlg_label_change */
  72     GtkAdjustment *adj;       /* for the scrollbar in a list box */
  73     guint entrysig;
  74     guint textsig;
  75     int nclicks;
  76 };
  77
  78 struct dlgparam {
  79     tree234 *byctrl, *bywidget;
  80     void *data;
  81     struct { unsigned char r, g, b, ok; } coloursel_result;   /* 0-255 */
  82     /* `flags' are set to indicate when a GTK signal handler is being called
  83      * due to automatic processing and should not flag a user event. */
  84     int flags;
  85     struct Shortcuts *shortcuts;
  86     GtkWidget *window, *cancelbutton;
  87     union control *currfocus, *lastfocus;
  88 #if !GTK_CHECK_VERSION(2,0,0)
  89     GtkWidget *currtreeitem, **treeitems;
  90     int ntreeitems;
  91 #else
  92     int nselparams;
  93     struct selparam *selparams;
  94 #endif
  95     int retval;
  96 };
  97 #define FLAG_UPDATING_COMBO_LIST 1
  98 #define FLAG_UPDATING_LISTBOX    2
  99
 100 enum {                                 /* values for Shortcut.action */
 101     SHORTCUT_EMPTY,                    /* no shortcut on this key */
 102     SHORTCUT_TREE,                     /* focus a tree item */
 103     SHORTCUT_FOCUS,                    /* focus the supplied widget */
 104     SHORTCUT_UCTRL,                    /* do something sane with uctrl */
 105     SHORTCUT_UCTRL_UP,                 /* uctrl is a draglist, move Up */
 106     SHORTCUT_UCTRL_DOWN,               /* uctrl is a draglist, move Down */
 107 };
 108
 109 #if GTK_CHECK_VERSION(2,0,0)
 110 enum {
 111     TREESTORE_PATH,
 112     TREESTORE_PARAMS,
 113     TREESTORE_NUM
 114 };
 115 #endif
 116
 117 /*
 118  * Forward references.
 119  */
 120 static gboolean widget_focus(GtkWidget *widget, GdkEventFocus *event,
 121                              gpointer data);
 122 static void shortcut_add(struct Shortcuts *scs, GtkWidget *labelw,
 123                          int chr, int action, void *ptr);
 124 static void shortcut_highlight(GtkWidget *label, int chr);
 125 #if !GTK_CHECK_VERSION(2,0,0)
 126 static gboolean listitem_single_key(GtkWidget *item, GdkEventKey *event,
 127                                     gpointer data);
 128 static gboolean listitem_multi_key(GtkWidget *item, GdkEventKey *event,
 129                                    gpointer data);
 130 static gboolean listitem_button_press(GtkWidget *item, GdkEventButton *event,
 131                                       gpointer data);
 132 static gboolean listitem_button_release(GtkWidget *item, GdkEventButton *event,
 133                                         gpointer data);
 134 #endif
 135 #if !GTK_CHECK_VERSION(2,4,0)
 136 static void menuitem_activate(GtkMenuItem *item, gpointer data);
 137 #endif
 138 #if GTK_CHECK_VERSION(3,0,0)
 139 static void colourchoose_response(GtkDialog *dialog,
 140                                   gint response_id, gpointer data);
 141 #else
 142 static void coloursel_ok(GtkButton *button, gpointer data);
 143 static void coloursel_cancel(GtkButton *button, gpointer data);
 144 #endif
 145 static void window_destroy(GtkWidget *widget, gpointer data);
 146 int get_listitemheight(GtkWidget *widget);
 147
 148 static int uctrl_cmp_byctrl(void *av, void *bv)
 149 {
 150     struct uctrl *a = (struct uctrl *)av;
 151     struct uctrl *b = (struct uctrl *)bv;
 152     if (a->ctrl < b->ctrl)
 153         return -1;
 154     else if (a->ctrl > b->ctrl)
 155         return +1;
 156     return 0;
 157 }
 158
 159 static int uctrl_cmp_byctrl_find(void *av, void *bv)
 160 {
 161     union control *a = (union control *)av;
 162     struct uctrl *b = (struct uctrl *)bv;
 163     if (a < b->ctrl)
 164         return -1;
 165     else if (a > b->ctrl)
 166         return +1;
 167     return 0;
 168 }
 169
 170 static int uctrl_cmp_bywidget(void *av, void *bv)
 171 {
 172     struct uctrl *a = (struct uctrl *)av;
 173     struct uctrl *b = (struct uctrl *)bv;
 174     if (a->toplevel < b->toplevel)
 175         return -1;
 176     else if (a->toplevel > b->toplevel)
 177         return +1;
 178     return 0;
 179 }
 180
 181 static int uctrl_cmp_bywidget_find(void *av, void *bv)
 182 {
 183     GtkWidget *a = (GtkWidget *)av;
 184     struct uctrl *b = (struct uctrl *)bv;
 185     if (a < b->toplevel)
 186         return -1;
 187     else if (a > b->toplevel)
 188         return +1;
 189     return 0;
 190 }
 191
 192 static void dlg_init(struct dlgparam *dp)
 193 {
 194     dp->byctrl = newtree234(uctrl_cmp_byctrl);
 195     dp->bywidget = newtree234(uctrl_cmp_bywidget);
 196     dp->coloursel_result.ok = FALSE;
 197     dp->window = dp->cancelbutton = NULL;
 198 #if !GTK_CHECK_VERSION(2,0,0)
 199     dp->treeitems = NULL;
 200     dp->currtreeitem = NULL;
 201 #endif
 202     dp->flags = 0;
 203     dp->currfocus = NULL;
 204 }
 205
 206 static void dlg_cleanup(struct dlgparam *dp)
 207 {
 208     struct uctrl *uc;
 209
 210     freetree234(dp->byctrl);           /* doesn't free the uctrls inside */
 211     dp->byctrl = NULL;
 212     while ( (uc = index234(dp->bywidget, 0)) != NULL) {
 213         del234(dp->bywidget, uc);
 214         sfree(uc->buttons);
 215         sfree(uc);
 216     }
 217     freetree234(dp->bywidget);
 218     dp->bywidget = NULL;
 219 #if !GTK_CHECK_VERSION(2,0,0)
 220     sfree(dp->treeitems);
 221 #endif
 222 }
 223
 224 static void dlg_add_uctrl(struct dlgparam *dp, struct uctrl *uc)
 225 {
 226     add234(dp->byctrl, uc);
 227     add234(dp->bywidget, uc);
 228 }
 229
 230 static struct uctrl *dlg_find_byctrl(struct dlgparam *dp, union control *ctrl)
 231 {
 232     if (!dp->byctrl)
 233         return NULL;
 234     return find234(dp->byctrl, ctrl, uctrl_cmp_byctrl_find);
 235 }
 236
 237 static struct uctrl *dlg_find_bywidget(struct dlgparam *dp, GtkWidget *w)
 238 {
 239     struct uctrl *ret = NULL;
 240     if (!dp->bywidget)
 241         return NULL;
 242     do {
 243         ret = find234(dp->bywidget, w, uctrl_cmp_bywidget_find);
 244         if (ret)
 245             return ret;
 246         w = gtk_widget_get_parent(w);
 247     } while (w);
 248     return ret;
 249 }
 250
 251 union control *dlg_last_focused(union control *ctrl, void *dlg)
 252 {
 253     struct dlgparam *dp = (struct dlgparam *)dlg;
 254     if (dp->currfocus != ctrl)
 255         return dp->currfocus;
 256     else
 257         return dp->lastfocus;
 258 }
 259
 260 void dlg_radiobutton_set(union control *ctrl, void *dlg, int which)
 261 {
 262     struct dlgparam *dp = (struct dlgparam *)dlg;
 263     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 264     assert(uc->ctrl->generic.type == CTRL_RADIO);
 265     assert(uc->buttons != NULL);
 266     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(uc->buttons[which]), TRUE);
 267 }
 268
 269 int dlg_radiobutton_get(union control *ctrl, void *dlg)
 270 {
 271     struct dlgparam *dp = (struct dlgparam *)dlg;
 272     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 273     int i;
 274
 275     assert(uc->ctrl->generic.type == CTRL_RADIO);
 276     assert(uc->buttons != NULL);
 277     for (i = 0; i < uc->nbuttons; i++)
 278         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(uc->buttons[i])))
 279             return i;
 280     return 0;                          /* got to return something */
 281 }
 282
 283 void dlg_checkbox_set(union control *ctrl, void *dlg, int checked)
 284 {
 285     struct dlgparam *dp = (struct dlgparam *)dlg;
 286     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 287     assert(uc->ctrl->generic.type == CTRL_CHECKBOX);
 288     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(uc->toplevel), checked);
 289 }
 290
 291 int dlg_checkbox_get(union control *ctrl, void *dlg)
 292 {
 293     struct dlgparam *dp = (struct dlgparam *)dlg;
 294     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 295     assert(uc->ctrl->generic.type == CTRL_CHECKBOX);
 296     return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(uc->toplevel));
 297 }
 298
 299 void dlg_editbox_set(union control *ctrl, void *dlg, char const *text)
 300 {
 301     struct dlgparam *dp = (struct dlgparam *)dlg;
 302     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 303     GtkWidget *entry;
 304     char *tmpstring;
 305     assert(uc->ctrl->generic.type == CTRL_EDITBOX);
 306
 307 #if GTK_CHECK_VERSION(2,4,0)
 308     if (uc->combo)
 309         entry = gtk_bin_get_child(GTK_BIN(uc->combo));
 310     else
 311 #endif
 312     entry = uc->entry;
 313
 314     assert(entry != NULL);
 315
 316     /*
 317      * GTK 2 implements gtk_entry_set_text by means of two separate
 318      * operations: first delete the previous text leaving the empty
 319      * string, then insert the new text. This causes two calls to
 320      * the "changed" signal.
 321      *
 322      * The first call to "changed", if allowed to proceed normally,
 323      * will cause an EVENT_VALCHANGE event on the edit box, causing
 324      * a call to dlg_editbox_get() which will read the empty string
 325      * out of the GtkEntry - and promptly write it straight into the
 326      * Conf structure, which is precisely where our `text' pointer
 327      * is probably pointing, so the second editing operation will
 328      * insert that instead of the string we originally asked for.
 329      *
 330      * Hence, we must take our own copy of the text before we do
 331      * this.
 332      */
 333     tmpstring = dupstr(text);
 334     gtk_entry_set_text(GTK_ENTRY(entry), tmpstring);
 335     sfree(tmpstring);
 336 }
 337
 338 char *dlg_editbox_get(union control *ctrl, void *dlg)
 339 {
 340     struct dlgparam *dp = (struct dlgparam *)dlg;
 341     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 342     assert(uc->ctrl->generic.type == CTRL_EDITBOX);
 343
 344 #if GTK_CHECK_VERSION(2,4,0)
 345     if (uc->combo) {
 346         return dupstr(gtk_entry_get_text
 347                       (GTK_ENTRY(gtk_bin_get_child(GTK_BIN(uc->combo)))));
 348     }
 349 #endif
 350
 351     if (uc->entry) {
 352         return dupstr(gtk_entry_get_text(GTK_ENTRY(uc->entry)));
 353     }
 354
 355     assert(!"We shouldn't get here");
 356 }
 357
 358 #if !GTK_CHECK_VERSION(2,4,0)
 359 static void container_remove_and_destroy(GtkWidget *w, gpointer data)
 360 {
 361     GtkContainer *cont = GTK_CONTAINER(data);
 362     /* gtk_container_remove will unref the widget for us; we need not. */
 363     gtk_container_remove(cont, w);
 364 }
 365 #endif
 366
 367 /* The `listbox' functions can also apply to combo boxes. */
 368 void dlg_listbox_clear(union control *ctrl, void *dlg)
 369 {
 370     struct dlgparam *dp = (struct dlgparam *)dlg;
 371     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 372
 373     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 374            uc->ctrl->generic.type == CTRL_LISTBOX);
 375
 376 #if !GTK_CHECK_VERSION(2,4,0)
 377     if (uc->menu) {
 378         gtk_container_foreach(GTK_CONTAINER(uc->menu),
 379                               container_remove_and_destroy,
 380                               GTK_CONTAINER(uc->menu));
 381         return;
 382     }
 383     if (uc->list) {
 384         gtk_list_clear_items(GTK_LIST(uc->list), 0, -1);
 385         return;
 386     }
 387 #endif
 388 #if GTK_CHECK_VERSION(2,0,0)
 389     if (uc->listmodel) {
 390         gtk_list_store_clear(uc->listmodel);
 391         return;
 392     }
 393 #endif
 394     assert(!"We shouldn't get here");
 395 }
 396
 397 void dlg_listbox_del(union control *ctrl, void *dlg, int index)
 398 {
 399     struct dlgparam *dp = (struct dlgparam *)dlg;
 400     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 401
 402     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 403            uc->ctrl->generic.type == CTRL_LISTBOX);
 404
 405 #if !GTK_CHECK_VERSION(2,4,0)
 406     if (uc->menu) {
 407         gtk_container_remove
 408             (GTK_CONTAINER(uc->menu),
 409              g_list_nth_data(GTK_MENU_SHELL(uc->menu)->children, index));
 410         return;
 411     }
 412     if (uc->list) {
 413         gtk_list_clear_items(GTK_LIST(uc->list), index, index+1);
 414         return;
 415     }
 416 #endif
 417 #if GTK_CHECK_VERSION(2,0,0)
 418     if (uc->listmodel) {
 419         GtkTreePath *path;
 420         GtkTreeIter iter;
 421         assert(uc->listmodel != NULL);
 422         path = gtk_tree_path_new_from_indices(index, -1);
 423         gtk_tree_model_get_iter(GTK_TREE_MODEL(uc->listmodel), &iter, path);
 424         gtk_list_store_remove(uc->listmodel, &iter);
 425         gtk_tree_path_free(path);
 426         return;
 427     }
 428 #endif
 429     assert(!"We shouldn't get here");
 430 }
 431
 432 void dlg_listbox_add(union control *ctrl, void *dlg, char const *text)
 433 {
 434     dlg_listbox_addwithid(ctrl, dlg, text, 0);
 435 }
 436
 437 /*
 438  * Each listbox entry may have a numeric id associated with it.
 439  * Note that some front ends only permit a string to be stored at
 440  * each position, which means that _if_ you put two identical
 441  * strings in any listbox then you MUST not assign them different
 442  * IDs and expect to get meaningful results back.
 443  */
 444 void dlg_listbox_addwithid(union control *ctrl, void *dlg,
 445                            char const *text, int id)
 446 {
 447     struct dlgparam *dp = (struct dlgparam *)dlg;
 448     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 449
 450     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 451            uc->ctrl->generic.type == CTRL_LISTBOX);
 452
 453     /*
 454      * This routine is long and complicated in both GTK 1 and 2,
 455      * and completely different. Sigh.
 456      */
 457     dp->flags |= FLAG_UPDATING_COMBO_LIST;
 458
 459 #if !GTK_CHECK_VERSION(2,4,0)
 460     if (uc->menu) {
 461         /*
 462          * List item in a drop-down (but non-combo) list. Tabs are
 463          * ignored; we just provide a standard menu item with the
 464          * text.
 465          */
 466         GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
 467
 468         gtk_container_add(GTK_CONTAINER(uc->menu), menuitem);
 469         gtk_widget_show(menuitem);
 470
 471         g_object_set_data(G_OBJECT(menuitem), "user-data",
 472                           GINT_TO_POINTER(id));
 473         g_signal_connect(G_OBJECT(menuitem), "activate",
 474                          G_CALLBACK(menuitem_activate), dp);
 475         goto done;
 476     }
 477     if (uc->list && uc->entry) {
 478         /*
 479          * List item in a combo-box list, which means the sensible
 480          * thing to do is make it a perfectly normal label. Hence
 481          * tabs are disregarded.
 482          */
 483         GtkWidget *listitem = gtk_list_item_new_with_label(text);
 484
 485         gtk_container_add(GTK_CONTAINER(uc->list), listitem);
 486         gtk_widget_show(listitem);
 487
 488         g_object_set_data(G_OBJECT(listitem), "user-data",
 489                           GINT_TO_POINTER(id));
 490         goto done;
 491     }
 492 #endif
 493 #if !GTK_CHECK_VERSION(2,0,0)
 494     if (uc->list) {
 495         /*
 496          * List item in a non-combo-box list box. We make all of
 497          * these Columns containing GtkLabels. This allows us to do
 498          * the nasty force_left hack irrespective of whether there
 499          * are tabs in the thing.
 500          */
 501         GtkWidget *listitem = gtk_list_item_new();
 502         GtkWidget *cols = columns_new(10);
 503         gint *percents;
 504         int i, ncols;
 505
 506         /* Count the tabs in the text, and hence determine # of columns. */
 507         ncols = 1;
 508         for (i = 0; text[i]; i++)
 509             if (text[i] == '\t')
 510                 ncols++;
 511
 512         assert(ncols <=
 513                (uc->ctrl->listbox.ncols ? uc->ctrl->listbox.ncols : 1));
 514         percents = snewn(ncols, gint);
 515         percents[ncols-1] = 100;
 516         for (i = 0; i < ncols-1; i++) {
 517             percents[i] = uc->ctrl->listbox.percentages[i];
 518             percents[ncols-1] -= percents[i];
 519         }
 520         columns_set_cols(COLUMNS(cols), ncols, percents);
 521         sfree(percents);
 522
 523         for (i = 0; i < ncols; i++) {
 524             int len = strcspn(text, "\t");
 525             char *dup = dupprintf("%.*s", len, text);
 526             GtkWidget *label;
 527
 528             text += len;
 529             if (*text) text++;
 530             label = gtk_label_new(dup);
 531             sfree(dup);
 532
 533             columns_add(COLUMNS(cols), label, i, 1);
 534             columns_force_left_align(COLUMNS(cols), label);
 535             gtk_widget_show(label);
 536         }
 537         gtk_container_add(GTK_CONTAINER(listitem), cols);
 538         gtk_widget_show(cols);
 539         gtk_container_add(GTK_CONTAINER(uc->list), listitem);
 540         gtk_widget_show(listitem);
 541
 542         if (ctrl->listbox.multisel) {
 543             g_signal_connect(G_OBJECT(listitem), "key_press_event",
 544                              G_CALLBACK(listitem_multi_key), uc->adj);
 545         } else {
 546             g_signal_connect(G_OBJECT(listitem), "key_press_event",
 547                              G_CALLBACK(listitem_single_key), uc->adj);
 548         }
 549         g_signal_connect(G_OBJECT(listitem), "focus_in_event",
 550                          G_CALLBACK(widget_focus), dp);
 551         g_signal_connect(G_OBJECT(listitem), "button_press_event",
 552                          G_CALLBACK(listitem_button_press), dp);
 553         g_signal_connect(G_OBJECT(listitem), "button_release_event",
 554                          G_CALLBACK(listitem_button_release), dp);
 555         g_object_set_data(G_OBJECT(listitem), "user-data",
 556                           GINT_TO_POINTER(id));
 557         goto done;
 558     }
 559 #else
 560     if (uc->listmodel) {
 561         GtkTreeIter iter;
 562         int i, cols;
 563
 564         dp->flags |= FLAG_UPDATING_LISTBOX;/* inhibit drag-list update */
 565         gtk_list_store_append(uc->listmodel, &iter);
 566         dp->flags &= ~FLAG_UPDATING_LISTBOX;
 567         gtk_list_store_set(uc->listmodel, &iter, 0, id, -1);
 568
 569         /*
 570          * Now go through text and divide it into columns at the tabs,
 571          * as necessary.
 572          */
 573         cols = (uc->ctrl->generic.type == CTRL_LISTBOX ? ctrl->listbox.ncols : 1);
 574         cols = cols ? cols : 1;
 575         for (i = 0; i < cols; i++) {
 576             int collen = strcspn(text, "\t");
 577             char *tmpstr = snewn(collen+1, char);
 578             memcpy(tmpstr, text, collen);
 579             tmpstr[collen] = '\0';
 580             gtk_list_store_set(uc->listmodel, &iter, i+1, tmpstr, -1);
 581             sfree(tmpstr);
 582             text += collen;
 583             if (*text) text++;
 584         }
 585         goto done;
 586     }
 587 #endif
 588     assert(!"We shouldn't get here");
 589     done:
 590     dp->flags &= ~FLAG_UPDATING_COMBO_LIST;
 591 }
 592
 593 int dlg_listbox_getid(union control *ctrl, void *dlg, int index)
 594 {
 595     struct dlgparam *dp = (struct dlgparam *)dlg;
 596     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 597
 598     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 599            uc->ctrl->generic.type == CTRL_LISTBOX);
 600
 601 #if !GTK_CHECK_VERSION(2,4,0)
 602     if (uc->menu || uc->list) {
 603         GList *children;
 604         GObject *item;
 605
 606         children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
 607                                                         uc->list));
 608         item = G_OBJECT(g_list_nth_data(children, index));
 609         g_list_free(children);
 610
 611         return GPOINTER_TO_INT(g_object_get_data(G_OBJECT(item), "user-data"));
 612     }
 613 #endif
 614 #if GTK_CHECK_VERSION(2,0,0)
 615     if (uc->listmodel) {
 616         GtkTreePath *path;
 617         GtkTreeIter iter;
 618         int ret;
 619
 620         path = gtk_tree_path_new_from_indices(index, -1);
 621         gtk_tree_model_get_iter(GTK_TREE_MODEL(uc->listmodel), &iter, path);
 622         gtk_tree_model_get(GTK_TREE_MODEL(uc->listmodel), &iter, 0, &ret, -1);
 623         gtk_tree_path_free(path);
 624
 625         return ret;
 626     }
 627 #endif
 628     assert(!"We shouldn't get here");
 629     return -1;                         /* placate dataflow analysis */
 630 }
 631
 632 /* dlg_listbox_index returns <0 if no single element is selected. */
 633 int dlg_listbox_index(union control *ctrl, void *dlg)
 634 {
 635     struct dlgparam *dp = (struct dlgparam *)dlg;
 636     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 637
 638     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 639            uc->ctrl->generic.type == CTRL_LISTBOX);
 640
 641 #if !GTK_CHECK_VERSION(2,4,0)
 642     if (uc->menu || uc->list) {
 643         GList *children;
 644         GtkWidget *item, *activeitem;
 645         int i;
 646         int selected = -1;
 647
 648         if (uc->menu)
 649             activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
 650         else
 651             activeitem = NULL;         /* unnecessarily placate gcc */
 652
 653         children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
 654                                                         uc->list));
 655         for (i = 0; children!=NULL && (item = GTK_WIDGET(children->data))!=NULL;
 656              i++, children = children->next) {
 657             if (uc->menu ? activeitem == item :
 658                 GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED) {
 659                 if (selected == -1)
 660                     selected = i;
 661                 else
 662                     selected = -2;
 663             }
 664         }
 665         g_list_free(children);
 666         return selected < 0 ? -1 : selected;
 667     }
 668 #else
 669     if (uc->combo) {
 670         /*
 671          * This API function already does the right thing in the
 672          * case of no current selection.
 673          */
 674         return gtk_combo_box_get_active(GTK_COMBO_BOX(uc->combo));
 675     }
 676 #endif
 677 #if GTK_CHECK_VERSION(2,0,0)
 678     if (uc->treeview) {
 679         GtkTreeSelection *treesel;
 680         GtkTreePath *path;
 681         GtkTreeModel *model;
 682         GList *sellist;
 683         gint *indices;
 684         int ret;
 685
 686         assert(uc->treeview != NULL);
 687         treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
 688
 689         if (gtk_tree_selection_count_selected_rows(treesel) != 1)
 690             return -1;
 691
 692         sellist = gtk_tree_selection_get_selected_rows(treesel, &model);
 693
 694         assert(sellist && sellist->data);
 695         path = sellist->data;
 696
 697         if (gtk_tree_path_get_depth(path) != 1) {
 698             ret = -1;
 699         } else {
 700             indices = gtk_tree_path_get_indices(path);
 701             if (!indices) {
 702                 ret = -1;
 703             } else {
 704                 ret = indices[0];
 705             }
 706         }
 707
 708         g_list_foreach(sellist, (GFunc)gtk_tree_path_free, NULL);
 709         g_list_free(sellist);
 710
 711         return ret;
 712     }
 713 #endif
 714     assert(!"We shouldn't get here");
 715     return -1;                         /* placate dataflow analysis */
 716 }
 717
 718 int dlg_listbox_issel(union control *ctrl, void *dlg, int index)
 719 {
 720     struct dlgparam *dp = (struct dlgparam *)dlg;
 721     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 722
 723     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 724            uc->ctrl->generic.type == CTRL_LISTBOX);
 725
 726 #if !GTK_CHECK_VERSION(2,4,0)
 727     if (uc->menu || uc->list) {
 728         GList *children;
 729         GtkWidget *item, *activeitem;
 730
 731         assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 732                uc->ctrl->generic.type == CTRL_LISTBOX);
 733         assert(uc->menu != NULL || uc->list != NULL);
 734
 735         children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
 736                                                         uc->list));
 737         item = GTK_WIDGET(g_list_nth_data(children, index));
 738         g_list_free(children);
 739
 740         if (uc->menu) {
 741             activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
 742             return item == activeitem;
 743         } else {
 744             return GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED;
 745         }
 746     }
 747 #else
 748     if (uc->combo) {
 749         /*
 750          * This API function already does the right thing in the
 751          * case of no current selection.
 752          */
 753         return gtk_combo_box_get_active(GTK_COMBO_BOX(uc->combo)) == index;
 754     }
 755 #endif
 756 #if GTK_CHECK_VERSION(2,0,0)
 757     if (uc->treeview) {
 758         GtkTreeSelection *treesel;
 759         GtkTreePath *path;
 760         int ret;
 761
 762         assert(uc->treeview != NULL);
 763         treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
 764
 765         path = gtk_tree_path_new_from_indices(index, -1);
 766         ret = gtk_tree_selection_path_is_selected(treesel, path);
 767         gtk_tree_path_free(path);
 768
 769         return ret;
 770     }
 771 #endif
 772     assert(!"We shouldn't get here");
 773     return -1;                         /* placate dataflow analysis */
 774 }
 775
 776 void dlg_listbox_select(union control *ctrl, void *dlg, int index)
 777 {
 778     struct dlgparam *dp = (struct dlgparam *)dlg;
 779     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 780
 781     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 782            uc->ctrl->generic.type == CTRL_LISTBOX);
 783
 784 #if !GTK_CHECK_VERSION(2,4,0)
 785     if (uc->optmenu) {
 786         gtk_option_menu_set_history(GTK_OPTION_MENU(uc->optmenu), index);
 787         return;
 788     }
 789     if (uc->list) {
 790         int nitems;
 791         GList *items;
 792         gdouble newtop, newbot;
 793
 794         gtk_list_select_item(GTK_LIST(uc->list), index);
 795
 796         /*
 797          * Scroll the list box if necessary to ensure the newly
 798          * selected item is visible.
 799          */
 800         items = gtk_container_children(GTK_CONTAINER(uc->list));
 801         nitems = g_list_length(items);
 802         if (nitems > 0) {
 803             int modified = FALSE;
 804             g_list_free(items);
 805             newtop = uc->adj->lower +
 806                 (uc->adj->upper - uc->adj->lower) * index / nitems;
 807             newbot = uc->adj->lower +
 808                 (uc->adj->upper - uc->adj->lower) * (index+1) / nitems;
 809             if (uc->adj->value > newtop) {
 810                 modified = TRUE;
 811                 uc->adj->value = newtop;
 812             } else if (uc->adj->value < newbot - uc->adj->page_size) {
 813                 modified = TRUE;
 814                 uc->adj->value = newbot - uc->adj->page_size;
 815             }
 816             if (modified)
 817                 gtk_adjustment_value_changed(uc->adj);
 818         }
 819         return;
 820     }
 821 #else
 822     if (uc->combo) {
 823         gtk_combo_box_set_active(GTK_COMBO_BOX(uc->combo), index);
 824         return;
 825     }
 826 #endif
 827 #if GTK_CHECK_VERSION(2,0,0)
 828     if (uc->treeview) {
 829         GtkTreeSelection *treesel;
 830         GtkTreePath *path;
 831
 832         treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
 833
 834         path = gtk_tree_path_new_from_indices(index, -1);
 835         gtk_tree_selection_select_path(treesel, path);
 836         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(uc->treeview),
 837                                      path, NULL, FALSE, 0.0, 0.0);
 838         gtk_tree_path_free(path);
 839         return;
 840     }
 841 #endif
 842     assert(!"We shouldn't get here");
 843 }
 844
 845 void dlg_text_set(union control *ctrl, void *dlg, char const *text)
 846 {
 847     struct dlgparam *dp = (struct dlgparam *)dlg;
 848     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 849
 850     assert(uc->ctrl->generic.type == CTRL_TEXT);
 851     assert(uc->text != NULL);
 852
 853     gtk_label_set_text(GTK_LABEL(uc->text), text);
 854 }
 855
 856 void dlg_label_change(union control *ctrl, void *dlg, char const *text)
 857 {
 858     struct dlgparam *dp = (struct dlgparam *)dlg;
 859     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 860
 861     switch (uc->ctrl->generic.type) {
 862       case CTRL_BUTTON:
 863         gtk_label_set_text(GTK_LABEL(uc->toplevel), text);
 864         shortcut_highlight(uc->toplevel, ctrl->button.shortcut);
 865         break;
 866       case CTRL_CHECKBOX:
 867         gtk_label_set_text(GTK_LABEL(uc->toplevel), text);
 868         shortcut_highlight(uc->toplevel, ctrl->checkbox.shortcut);
 869         break;
 870       case CTRL_RADIO:
 871         gtk_label_set_text(GTK_LABEL(uc->label), text);
 872         shortcut_highlight(uc->label, ctrl->radio.shortcut);
 873         break;
 874       case CTRL_EDITBOX:
 875         gtk_label_set_text(GTK_LABEL(uc->label), text);
 876         shortcut_highlight(uc->label, ctrl->editbox.shortcut);
 877         break;
 878       case CTRL_FILESELECT:
 879         gtk_label_set_text(GTK_LABEL(uc->label), text);
 880         shortcut_highlight(uc->label, ctrl->fileselect.shortcut);
 881         break;
 882       case CTRL_FONTSELECT:
 883         gtk_label_set_text(GTK_LABEL(uc->label), text);
 884         shortcut_highlight(uc->label, ctrl->fontselect.shortcut);
 885         break;
 886       case CTRL_LISTBOX:
 887         gtk_label_set_text(GTK_LABEL(uc->label), text);
 888         shortcut_highlight(uc->label, ctrl->listbox.shortcut);
 889         break;
 890       default:
 891         assert(!"This shouldn't happen");
 892         break;
 893     }
 894 }
 895
 896 void dlg_filesel_set(union control *ctrl, void *dlg, Filename *fn)
 897 {
 898     struct dlgparam *dp = (struct dlgparam *)dlg;
 899     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 900     /* We must copy fn->path before passing it to gtk_entry_set_text.
 901      * See comment in dlg_editbox_set() for the reasons. */
 902     char *duppath = dupstr(fn->path);
 903     assert(uc->ctrl->generic.type == CTRL_FILESELECT);
 904     assert(uc->entry != NULL);
 905     gtk_entry_set_text(GTK_ENTRY(uc->entry), duppath);
 906     sfree(duppath);
 907 }
 908
 909 Filename *dlg_filesel_get(union control *ctrl, void *dlg)
 910 {
 911     struct dlgparam *dp = (struct dlgparam *)dlg;
 912     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 913     assert(uc->ctrl->generic.type == CTRL_FILESELECT);
 914     assert(uc->entry != NULL);
 915     return filename_from_str(gtk_entry_get_text(GTK_ENTRY(uc->entry)));
 916 }
 917
 918 void dlg_fontsel_set(union control *ctrl, void *dlg, FontSpec *fs)
 919 {
 920     struct dlgparam *dp = (struct dlgparam *)dlg;
 921     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 922     /* We must copy fs->name before passing it to gtk_entry_set_text.
 923      * See comment in dlg_editbox_set() for the reasons. */
 924     char *dupname = dupstr(fs->name);
 925     assert(uc->ctrl->generic.type == CTRL_FONTSELECT);
 926     assert(uc->entry != NULL);
 927     gtk_entry_set_text(GTK_ENTRY(uc->entry), dupname);
 928     sfree(dupname);
 929 }
 930
 931 FontSpec *dlg_fontsel_get(union control *ctrl, void *dlg)
 932 {
 933     struct dlgparam *dp = (struct dlgparam *)dlg;
 934     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 935     assert(uc->ctrl->generic.type == CTRL_FONTSELECT);
 936     assert(uc->entry != NULL);
 937     return fontspec_new(gtk_entry_get_text(GTK_ENTRY(uc->entry)));
 938 }
 939
 940 /*
 941  * Bracketing a large set of updates in these two functions will
 942  * cause the front end (if possible) to delay updating the screen
 943  * until it's all complete, thus avoiding flicker.
 944  */
 945 void dlg_update_start(union control *ctrl, void *dlg)
 946 {
 947     /*
 948      * Apparently we can't do this at all in GTK. GtkCList supports
 949      * freeze and thaw, but not GtkList. Bah.
 950      */
 951 }
 952
 953 void dlg_update_done(union control *ctrl, void *dlg)
 954 {
 955     /*
 956      * Apparently we can't do this at all in GTK. GtkCList supports
 957      * freeze and thaw, but not GtkList. Bah.
 958      */
 959 }
 960
 961 void dlg_set_focus(union control *ctrl, void *dlg)
 962 {
 963     struct dlgparam *dp = (struct dlgparam *)dlg;
 964     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 965
 966     switch (ctrl->generic.type) {
 967       case CTRL_CHECKBOX:
 968       case CTRL_BUTTON:
 969         /* Check boxes and buttons get the focus _and_ get toggled. */
 970         gtk_widget_grab_focus(uc->toplevel);
 971         break;
 972       case CTRL_FILESELECT:
 973       case CTRL_FONTSELECT:
 974       case CTRL_EDITBOX:
 975         if (uc->entry) {
 976             /* Anything containing an edit box gets that focused. */
 977             gtk_widget_grab_focus(uc->entry);
 978         }
 979 #if GTK_CHECK_VERSION(2,4,0)
 980         else if (uc->combo) {
 981             /* Failing that, there'll be a combo box. */
 982             gtk_widget_grab_focus(uc->combo);
 983         }
 984 #endif
 985         break;
 986       case CTRL_RADIO:
 987         /*
 988          * Radio buttons: we find the currently selected button and
 989          * focus it.
 990          */
 991         {
 992             int i;
 993             for (i = 0; i < ctrl->radio.nbuttons; i++)
 994                 if (gtk_toggle_button_get_active
 995                     (GTK_TOGGLE_BUTTON(uc->buttons[i]))) {
 996                     gtk_widget_grab_focus(uc->buttons[i]);
 997                 }
 998         }
 999         break;
1000       case CTRL_LISTBOX:
1001 #if !GTK_CHECK_VERSION(2,4,0)
1002         if (uc->optmenu) {
1003             gtk_widget_grab_focus(uc->optmenu);
1004             break;
1005         }
1006 #else
1007         if (uc->combo) {
1008             gtk_widget_grab_focus(uc->combo);
1009             break;
1010         }
1011 #endif
1012 #if !GTK_CHECK_VERSION(2,0,0)
1013         if (uc->list) {
1014             /*
1015              * For GTK-1 style list boxes, we tell it to focus one
1016              * of its children, which appears to do the Right
1017              * Thing.
1018              */
1019             gtk_container_focus(GTK_CONTAINER(uc->list), GTK_DIR_TAB_FORWARD);
1020             break;
1021         }
1022 #else
1023         if (uc->treeview) {
1024             gtk_widget_grab_focus(uc->treeview);
1025             break;
1026         }
1027 #endif
1028         assert(!"We shouldn't get here");
1029         break;
1030     }
1031 }
1032
1033 /*
1034  * During event processing, you might well want to give an error
1035  * indication to the user. dlg_beep() is a quick and easy generic
1036  * error; dlg_error() puts up a message-box or equivalent.
1037  */
1038 void dlg_beep(void *dlg)
1039 {
1040     gdk_beep();
1041 }
1042
1043 #if !GTK_CHECK_VERSION(3,0,0)
1044 static void errmsg_button_clicked(GtkButton *button, gpointer data)
1045 {
1046     gtk_widget_destroy(GTK_WIDGET(data));
1047 }
1048 #endif
1049
1050 static void set_transient_window_pos(GtkWidget *parent, GtkWidget *child)
1051 {
1052 #if !GTK_CHECK_VERSION(2,0,0)
1053     gint x, y, w, h, dx, dy;
1054     GtkRequisition req;
1055     gtk_window_set_position(GTK_WINDOW(child), GTK_WIN_POS_NONE);
1056     gtk_widget_size_request(GTK_WIDGET(child), &req);
1057
1058     gdk_window_get_origin(gtk_widget_get_window(GTK_WIDGET(parent)), &x, &y);
1059     gdk_window_get_size(gtk_widget_get_window(GTK_WIDGET(parent)), &w, &h);
1060
1061     /*
1062      * One corner of the transient will be offset inwards, by 1/4
1063      * of the parent window's size, from the corresponding corner
1064      * of the parent window. The corner will be chosen so as to
1065      * place the transient closer to the centre of the screen; this
1066      * should avoid transients going off the edge of the screen on
1067      * a regular basis.
1068      */
1069     if (x + w/2 < gdk_screen_width() / 2)
1070         dx = x + w/4;                  /* work from left edges */
1071     else
1072         dx = x + 3*w/4 - req.width;    /* work from right edges */
1073     if (y + h/2 < gdk_screen_height() / 2)
1074         dy = y + h/4;                  /* work from top edges */
1075     else
1076         dy = y + 3*h/4 - req.height;   /* work from bottom edges */
1077     gtk_widget_set_uposition(GTK_WIDGET(child), dx, dy);
1078 #endif
1079 }
1080
1081 void dlg_error_msg(void *dlg, const char *msg)
1082 {
1083     struct dlgparam *dp = (struct dlgparam *)dlg;
1084     GtkWidget *window;
1085
1086 #if GTK_CHECK_VERSION(3,0,0)
1087     window = gtk_message_dialog_new(GTK_WINDOW(dp->window),
1088                                     (GTK_DIALOG_MODAL |
1089                                      GTK_DIALOG_DESTROY_WITH_PARENT),
1090                                     GTK_MESSAGE_ERROR,
1091                                     GTK_BUTTONS_CLOSE,
1092                                     "%s", msg);
1093     gtk_dialog_run(GTK_DIALOG(window));
1094     gtk_widget_destroy(window);
1095 #else
1096     GtkWidget *hbox, *text, *ok;
1097
1098     window = gtk_dialog_new();
1099     text = gtk_label_new(msg);
1100     align_label_left(GTK_LABEL(text));
1101     hbox = gtk_hbox_new(FALSE, 0);
1102     gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
1103     gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(window))),
1104                        hbox, FALSE, FALSE, 20);
1105     gtk_widget_show(text);
1106     gtk_widget_show(hbox);
1107     gtk_window_set_title(GTK_WINDOW(window), "Error");
1108     gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
1109     ok = gtk_button_new_with_label("OK");
1110     gtk_box_pack_end(GTK_BOX(gtk_dialog_get_action_area(GTK_DIALOG(window))),
1111                      ok, FALSE, FALSE, 0);
1112     gtk_widget_show(ok);
1113     gtk_widget_set_can_default(ok, TRUE);
1114     gtk_window_set_default(GTK_WINDOW(window), ok);
1115     g_signal_connect(G_OBJECT(ok), "clicked",
1116                      G_CALLBACK(errmsg_button_clicked), window);
1117     g_signal_connect(G_OBJECT(window), "destroy",
1118                      G_CALLBACK(window_destroy), NULL);
1119     gtk_window_set_modal(GTK_WINDOW(window), TRUE);
1120     gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(dp->window));
1121     set_transient_window_pos(dp->window, window);
1122     gtk_widget_show(window);
1123     gtk_main();
1124 #endif
1125
1126     post_main();
1127 }
1128
1129 /*
1130  * This function signals to the front end that the dialog's
1131  * processing is completed, and passes an integer value (typically
1132  * a success status).
1133  */
1134 void dlg_end(void *dlg, int value)
1135 {
1136     struct dlgparam *dp = (struct dlgparam *)dlg;
1137     dp->retval = value;
1138     gtk_widget_destroy(dp->window);
1139 }
1140
1141 void dlg_refresh(union control *ctrl, void *dlg)
1142 {
1143     struct dlgparam *dp = (struct dlgparam *)dlg;
1144     struct uctrl *uc;
1145
1146     if (ctrl) {
1147         if (ctrl->generic.handler != NULL)
1148             ctrl->generic.handler(ctrl, dp, dp->data, EVENT_REFRESH);
1149     } else {
1150         int i;
1151
1152         for (i = 0; (uc = index234(dp->byctrl, i)) != NULL; i++) {
1153             assert(uc->ctrl != NULL);
1154             if (uc->ctrl->generic.handler != NULL)
1155                 uc->ctrl->generic.handler(uc->ctrl, dp,
1156                                           dp->data, EVENT_REFRESH);
1157         }
1158     }
1159 }
1160
1161 void dlg_coloursel_start(union control *ctrl, void *dlg, int r, int g, int b)
1162 {
1163     struct dlgparam *dp = (struct dlgparam *)dlg;
1164     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
1165
1166 #if GTK_CHECK_VERSION(3,0,0)
1167     GtkWidget *coloursel =
1168         gtk_color_chooser_dialog_new("Select a colour",
1169                                      GTK_WINDOW(dp->window));
1170     gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(coloursel), FALSE);
1171 #else
1172     GtkWidget *okbutton, *cancelbutton;
1173     GtkWidget *coloursel =
1174         gtk_color_selection_dialog_new("Select a colour");
1175     GtkColorSelectionDialog *ccs = GTK_COLOR_SELECTION_DIALOG(coloursel);
1176     GtkColorSelection *cs = GTK_COLOR_SELECTION
1177         (gtk_color_selection_dialog_get_color_selection(ccs));
1178     gtk_color_selection_set_has_opacity_control(cs, FALSE);
1179 #endif
1180
1181     dp->coloursel_result.ok = FALSE;
1182
1183     gtk_window_set_modal(GTK_WINDOW(coloursel), TRUE);
1184
1185 #if GTK_CHECK_VERSION(3,0,0)
1186     {
1187         GdkRGBA rgba;
1188         rgba.red = r / 255.0;
1189         rgba.green = g / 255.0;
1190         rgba.blue = b / 255.0;
1191         rgba.alpha = 1.0;              /* fully opaque! */
1192         gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(coloursel), &rgba);
1193     }
1194 #elif GTK_CHECK_VERSION(2,0,0)
1195     {
1196         GdkColor col;
1197         col.red = r * 0x0101;
1198         col.green = g * 0x0101;
1199         col.blue = b * 0x0101;
1200         gtk_color_selection_set_current_color(cs, &col);
1201     }
1202 #else
1203     {
1204         gdouble cvals[4];
1205         cvals[0] = r / 255.0;
1206         cvals[1] = g / 255.0;
1207         cvals[2] = b / 255.0;
1208         cvals[3] = 1.0;                /* fully opaque! */
1209         gtk_color_selection_set_color(cs, cvals);
1210     }
1211 #endif
1212
1213     g_object_set_data(G_OBJECT(coloursel), "user-data", (gpointer)uc);
1214
1215 #if GTK_CHECK_VERSION(3,0,0)
1216     g_signal_connect(G_OBJECT(coloursel), "response",
1217                      G_CALLBACK(colourchoose_response), (gpointer)dp);
1218 #else
1219
1220 #if GTK_CHECK_VERSION(2,0,0)
1221     g_object_get(G_OBJECT(ccs),
1222                  "ok-button", &okbutton,
1223                  "cancel-button", &cancelbutton,
1224                  (const char *)NULL);
1225 #else
1226     okbutton = ccs->ok_button;
1227     cancelbutton = ccs->cancel_button;
1228 #endif
1229     g_object_set_data(G_OBJECT(okbutton), "user-data",
1230                         (gpointer)coloursel);
1231     g_object_set_data(G_OBJECT(cancelbutton), "user-data",
1232                         (gpointer)coloursel);
1233     g_signal_connect(G_OBJECT(okbutton), "clicked",
1234                      G_CALLBACK(coloursel_ok), (gpointer)dp);
1235     g_signal_connect(G_OBJECT(cancelbutton), "clicked",
1236                      G_CALLBACK(coloursel_cancel), (gpointer)dp);
1237     g_signal_connect_swapped(G_OBJECT(okbutton), "clicked",
1238                              G_CALLBACK(gtk_widget_destroy),
1239                              (gpointer)coloursel);
1240     g_signal_connect_swapped(G_OBJECT(cancelbutton), "clicked",
1241                              G_CALLBACK(gtk_widget_destroy),
1242                              (gpointer)coloursel);
1243 #endif
1244     gtk_widget_show(coloursel);
1245 }
1246
1247 int dlg_coloursel_results(union control *ctrl, void *dlg,
1248                           int *r, int *g, int *b)
1249 {
1250     struct dlgparam *dp = (struct dlgparam *)dlg;
1251     if (dp->coloursel_result.ok) {
1252         *r = dp->coloursel_result.r;
1253         *g = dp->coloursel_result.g;
1254         *b = dp->coloursel_result.b;
1255         return 1;
1256     } else
1257         return 0;
1258 }
1259
1260 /* ----------------------------------------------------------------------
1261  * Signal handlers while the dialog box is active.
1262  */
1263
1264 static gboolean widget_focus(GtkWidget *widget, GdkEventFocus *event,
1265                              gpointer data)
1266 {
1267     struct dlgparam *dp = (struct dlgparam *)data;
1268     struct uctrl *uc = dlg_find_bywidget(dp, widget);
1269     union control *focus;
1270
1271     if (uc && uc->ctrl)
1272         focus = uc->ctrl;
1273     else
1274         focus = NULL;
1275
1276     if (focus != dp->currfocus) {
1277         dp->lastfocus = dp->currfocus;
1278         dp->currfocus = focus;
1279     }
1280
1281     return FALSE;
1282 }
1283
1284 static void button_clicked(GtkButton *button, gpointer data)
1285 {
1286     struct dlgparam *dp = (struct dlgparam *)data;
1287     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1288     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
1289 }
1290
1291 static void button_toggled(GtkToggleButton *tb, gpointer data)
1292 {
1293     struct dlgparam *dp = (struct dlgparam *)data;
1294     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(tb));
1295     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
1296 }
1297
1298 static gboolean editbox_key(GtkWidget *widget, GdkEventKey *event,
1299                             gpointer data)
1300 {
1301     /*
1302      * GtkEntry has a nasty habit of eating the Return key, which
1303      * is unhelpful since it doesn't actually _do_ anything with it
1304      * (it calls gtk_widget_activate, but our edit boxes never need
1305      * activating). So I catch Return before GtkEntry sees it, and
1306      * pass it straight on to the parent widget. Effect: hitting
1307      * Return in an edit box will now activate the default button
1308      * in the dialog just like it will everywhere else.
1309      */
1310     GtkWidget *parent = gtk_widget_get_parent(widget);
1311     if (event->keyval == GDK_KEY_Return && parent != NULL) {
1312         gboolean return_val;
1313         g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
1314         g_signal_emit_by_name(G_OBJECT(parent), "key_press_event",
1315                               event, &return_val);
1316         return return_val;
1317     }
1318     return FALSE;
1319 }
1320
1321 static void editbox_changed(GtkEditable *ed, gpointer data)
1322 {
1323     struct dlgparam *dp = (struct dlgparam *)data;
1324     if (!(dp->flags & FLAG_UPDATING_COMBO_LIST)) {
1325         struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(ed));
1326         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
1327     }
1328 }
1329
1330 static gboolean editbox_lostfocus(GtkWidget *ed, GdkEventFocus *event,
1331                                   gpointer data)
1332 {
1333     struct dlgparam *dp = (struct dlgparam *)data;
1334     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(ed));
1335     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_REFRESH);
1336     return FALSE;
1337 }
1338
1339 #if !GTK_CHECK_VERSION(2,0,0)
1340
1341 /*
1342  * GTK 1 list box event handlers.
1343  */
1344
1345 static gboolean listitem_key(GtkWidget *item, GdkEventKey *event,
1346                              gpointer data, int multiple)
1347 {
1348     GtkAdjustment *adj = GTK_ADJUSTMENT(data);
1349
1350     if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up ||
1351         event->keyval == GDK_Down || event->keyval == GDK_KP_Down ||
1352         event->keyval == GDK_Page_Up || event->keyval == GDK_KP_Page_Up ||
1353         event->keyval == GDK_Page_Down || event->keyval == GDK_KP_Page_Down) {
1354         /*
1355          * Up, Down, PgUp or PgDn have been pressed on a ListItem
1356          * in a list box. So, if the list box is single-selection:
1357          *
1358          *  - if the list item in question isn't already selected,
1359          *    we simply select it.
1360          *  - otherwise, we find the next one (or next
1361          *    however-far-away) in whichever direction we're going,
1362          *    and select that.
1363          *     + in this case, we must also fiddle with the
1364          *       scrollbar to ensure the newly selected item is
1365          *       actually visible.
1366          *
1367          * If it's multiple-selection, we do all of the above
1368          * except actually selecting anything, so we move the focus
1369          * and fiddle the scrollbar to follow it.
1370          */
1371         GtkWidget *list = item->parent;
1372
1373         g_signal_stop_emission_by_name(G_OBJECT(item), "key_press_event");
1374
1375         if (!multiple &&
1376             GTK_WIDGET_STATE(item) != GTK_STATE_SELECTED) {
1377                 gtk_list_select_child(GTK_LIST(list), item);
1378         } else {
1379             int direction =
1380                 (event->keyval==GDK_Up || event->keyval==GDK_KP_Up ||
1381                  event->keyval==GDK_Page_Up || event->keyval==GDK_KP_Page_Up)
1382                 ? -1 : +1;
1383             int step =
1384                 (event->keyval==GDK_Page_Down ||
1385                  event->keyval==GDK_KP_Page_Down ||
1386                  event->keyval==GDK_Page_Up || event->keyval==GDK_KP_Page_Up)
1387                 ? 2 : 1;
1388             int i, n;
1389             GList *children, *chead;
1390
1391             chead = children = gtk_container_children(GTK_CONTAINER(list));
1392
1393             n = g_list_length(children);
1394
1395             if (step == 2) {
1396                 /*
1397                  * Figure out how many list items to a screenful,
1398                  * and adjust the step appropriately.
1399                  */
1400                 step = 0.5 + adj->page_size * n / (adj->upper - adj->lower);
1401                 step--;                /* go by one less than that */
1402             }
1403
1404             i = 0;
1405             while (children != NULL) {
1406                 if (item == children->data)
1407                     break;
1408                 children = children->next;
1409                 i++;
1410             }
1411
1412             while (step > 0) {
1413                 if (direction < 0 && i > 0)
1414                     children = children->prev, i--;
1415                 else if (direction > 0 && i < n-1)
1416                     children = children->next, i++;
1417                 step--;
1418             }
1419
1420             if (children && children->data) {
1421                 if (!multiple)
1422                     gtk_list_select_child(GTK_LIST(list),
1423                                           GTK_WIDGET(children->data));
1424                 gtk_widget_grab_focus(GTK_WIDGET(children->data));
1425                 gtk_adjustment_clamp_page
1426                     (adj,
1427                      adj->lower + (adj->upper-adj->lower) * i / n,
1428                      adj->lower + (adj->upper-adj->lower) * (i+1) / n);
1429             }
1430
1431             g_list_free(chead);
1432         }
1433         return TRUE;
1434     }
1435
1436     return FALSE;
1437 }
1438
1439 static gboolean listitem_single_key(GtkWidget *item, GdkEventKey *event,
1440                                     gpointer data)
1441 {
1442     return listitem_key(item, event, data, FALSE);
1443 }
1444
1445 static gboolean listitem_multi_key(GtkWidget *item, GdkEventKey *event,
1446                                    gpointer data)
1447 {
1448     return listitem_key(item, event, data, TRUE);
1449 }
1450
1451 static gboolean listitem_button_press(GtkWidget *item, GdkEventButton *event,
1452                                       gpointer data)
1453 {
1454     struct dlgparam *dp = (struct dlgparam *)data;
1455     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(item));
1456     switch (event->type) {
1457     default:
1458     case GDK_BUTTON_PRESS: uc->nclicks = 1; break;
1459     case GDK_2BUTTON_PRESS: uc->nclicks = 2; break;
1460     case GDK_3BUTTON_PRESS: uc->nclicks = 3; break;
1461     }
1462     return FALSE;
1463 }
1464
1465 static gboolean listitem_button_release(GtkWidget *item, GdkEventButton *event,
1466                                         gpointer data)
1467 {
1468     struct dlgparam *dp = (struct dlgparam *)data;
1469     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(item));
1470     if (uc->nclicks>1) {
1471         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
1472         return TRUE;
1473     }
1474     return FALSE;
1475 }
1476
1477 static void list_selchange(GtkList *list, gpointer data)
1478 {
1479     struct dlgparam *dp = (struct dlgparam *)data;
1480     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(list));
1481     if (!uc) return;
1482     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1483 }
1484
1485 static void draglist_move(struct dlgparam *dp, struct uctrl *uc, int direction)
1486 {
1487     int index = dlg_listbox_index(uc->ctrl, dp);
1488     GList *children = gtk_container_children(GTK_CONTAINER(uc->list));
1489     GtkWidget *child;
1490
1491     if ((index < 0) ||
1492         (index == 0 && direction < 0) ||
1493         (index == g_list_length(children)-1 && direction > 0)) {
1494         gdk_beep();
1495         return;
1496     }
1497
1498     child = g_list_nth_data(children, index);
1499     gtk_widget_ref(child);
1500     gtk_list_clear_items(GTK_LIST(uc->list), index, index+1);
1501     g_list_free(children);
1502
1503     children = NULL;
1504     children = g_list_append(children, child);
1505     gtk_list_insert_items(GTK_LIST(uc->list), children, index + direction);
1506     gtk_list_select_item(GTK_LIST(uc->list), index + direction);
1507     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
1508 }
1509
1510 static void draglist_up(GtkButton *button, gpointer data)
1511 {
1512     struct dlgparam *dp = (struct dlgparam *)data;
1513     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1514     draglist_move(dp, uc, -1);
1515 }
1516
1517 static void draglist_down(GtkButton *button, gpointer data)
1518 {
1519     struct dlgparam *dp = (struct dlgparam *)data;
1520     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1521     draglist_move(dp, uc, +1);
1522 }
1523
1524 #else /* !GTK_CHECK_VERSION(2,0,0) */
1525
1526 /*
1527  * GTK 2 list box event handlers.
1528  */
1529
1530 static void listbox_doubleclick(GtkTreeView *treeview, GtkTreePath *path,
1531                                 GtkTreeViewColumn *column, gpointer data)
1532 {
1533     struct dlgparam *dp = (struct dlgparam *)data;
1534     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(treeview));
1535     if (uc)
1536         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
1537 }
1538
1539 static void listbox_selchange(GtkTreeSelection *treeselection,
1540                               gpointer data)
1541 {
1542     struct dlgparam *dp = (struct dlgparam *)data;
1543     GtkTreeView *tree = gtk_tree_selection_get_tree_view(treeselection);
1544     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(tree));
1545     if (uc)
1546         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1547 }
1548
1549 struct draglist_valchange_ctx {
1550     struct uctrl *uc;
1551     struct dlgparam *dp;
1552 };
1553
1554 static gboolean draglist_valchange(gpointer data)
1555 {
1556     struct draglist_valchange_ctx *ctx =
1557         (struct draglist_valchange_ctx *)data;
1558
1559     ctx->uc->ctrl->generic.handler(ctx->uc->ctrl, ctx->dp,
1560                                    ctx->dp->data, EVENT_VALCHANGE);
1561
1562     sfree(ctx);
1563
1564     return FALSE;
1565 }
1566
1567 static void listbox_reorder(GtkTreeModel *treemodel, GtkTreePath *path,
1568                             GtkTreeIter *iter, gpointer data)
1569 {
1570     struct dlgparam *dp = (struct dlgparam *)data;
1571     gpointer tree;
1572     struct uctrl *uc;
1573
1574     if (dp->flags & FLAG_UPDATING_LISTBOX)
1575         return;                        /* not a user drag operation */
1576
1577     tree = g_object_get_data(G_OBJECT(treemodel), "user-data");
1578     uc = dlg_find_bywidget(dp, GTK_WIDGET(tree));
1579     if (uc) {
1580         /*
1581          * We should cause EVENT_VALCHANGE on the list box, now
1582          * that its rows have been reordered. However, the GTK 2
1583          * docs say that at the point this signal is received the
1584          * new row might not have actually been filled in yet.
1585          *
1586          * (So what smegging use is it then, eh? Don't suppose it
1587          * occurred to you at any point that letting the
1588          * application know _after_ the reordering was compelete
1589          * might be helpful to someone?)
1590          *
1591          * To get round this, I schedule an idle function, which I
1592          * hope won't be called until the main event loop is
1593          * re-entered after the drag-and-drop handler has finished
1594          * furtling with the list store.
1595          */
1596         struct draglist_valchange_ctx *ctx =
1597             snew(struct draglist_valchange_ctx);
1598         ctx->uc = uc;
1599         ctx->dp = dp;
1600         g_idle_add(draglist_valchange, ctx);
1601     }
1602 }
1603
1604 #endif /* !GTK_CHECK_VERSION(2,0,0) */
1605
1606 #if !GTK_CHECK_VERSION(2,4,0)
1607
1608 static void menuitem_activate(GtkMenuItem *item, gpointer data)
1609 {
1610     struct dlgparam *dp = (struct dlgparam *)data;
1611     GtkWidget *menushell = GTK_WIDGET(item)->parent;
1612     gpointer optmenu = g_object_get_data(G_OBJECT(menushell), "user-data");
1613     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(optmenu));
1614     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1615 }
1616
1617 #else
1618
1619 static void droplist_selchange(GtkComboBox *combo, gpointer data)
1620 {
1621     struct dlgparam *dp = (struct dlgparam *)data;
1622     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(combo));
1623     if (uc)
1624         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1625 }
1626
1627 #endif /* !GTK_CHECK_VERSION(2,4,0) */
1628
1629 #ifdef USE_GTK_FILE_CHOOSER_DIALOG
1630 static void filechoose_response(GtkDialog *dialog, gint response,
1631                                 gpointer data)
1632 {
1633     /* struct dlgparam *dp = (struct dlgparam *)data; */
1634     struct uctrl *uc = g_object_get_data(G_OBJECT(dialog), "user-data");
1635     if (response == GTK_RESPONSE_ACCEPT) {
1636         gchar *name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
1637     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1638         g_free(name);
1639     }
1640     gtk_widget_destroy(GTK_WIDGET(dialog));
1641 }
1642 #else
1643 static void filesel_ok(GtkButton *button, gpointer data)
1644 {
1645     /* struct dlgparam *dp = (struct dlgparam *)data; */
1646     gpointer filesel = g_object_get_data(G_OBJECT(button), "user-data");
1647     struct uctrl *uc = g_object_get_data(G_OBJECT(filesel), "user-data");
1648     const char *name = gtk_file_selection_get_filename
1649         (GTK_FILE_SELECTION(filesel));
1650     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1651 }
1652 #endif
1653
1654 static void fontsel_ok(GtkButton *button, gpointer data)
1655 {
1656     /* struct dlgparam *dp = (struct dlgparam *)data; */
1657
1658 #if !GTK_CHECK_VERSION(2,0,0)
1659
1660     gpointer fontsel = g_object_get_data(G_OBJECT(button), "user-data");
1661     struct uctrl *uc = g_object_get_data(G_OBJECT(fontsel), "user-data");
1662     const char *name = gtk_font_selection_dialog_get_font_name
1663         (GTK_FONT_SELECTION_DIALOG(fontsel));
1664     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1665
1666 #else
1667
1668     unifontsel *fontsel = (unifontsel *)g_object_get_data
1669         (G_OBJECT(button), "user-data");
1670     struct uctrl *uc = (struct uctrl *)fontsel->user_data;
1671     char *name = unifontsel_get_name(fontsel);
1672     assert(name);              /* should always be ok after OK pressed */
1673     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1674     sfree(name);
1675
1676 #endif
1677 }
1678
1679 #if GTK_CHECK_VERSION(3,0,0)
1680
1681 static void colourchoose_response(GtkDialog *dialog,
1682                                   gint response_id, gpointer data)
1683 {
1684     struct dlgparam *dp = (struct dlgparam *)data;
1685     struct uctrl *uc = g_object_get_data(G_OBJECT(dialog), "user-data");
1686
1687     if (response_id == GTK_RESPONSE_OK) {
1688         GdkRGBA rgba;
1689         gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(dialog), &rgba);
1690         dp->coloursel_result.r = (int) (255 * rgba.red);
1691         dp->coloursel_result.g = (int) (255 * rgba.green);
1692         dp->coloursel_result.b = (int) (255 * rgba.blue);
1693         dp->coloursel_result.ok = TRUE;
1694     } else {
1695         dp->coloursel_result.ok = FALSE;
1696     }
1697
1698     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_CALLBACK);
1699
1700     gtk_widget_destroy(GTK_WIDGET(dialog));
1701 }
1702
1703 #else /* GTK 1/2 coloursel response handlers */
1704
1705 static void coloursel_ok(GtkButton *button, gpointer data)
1706 {
1707     struct dlgparam *dp = (struct dlgparam *)data;
1708     gpointer coloursel = g_object_get_data(G_OBJECT(button), "user-data");
1709     struct uctrl *uc = g_object_get_data(G_OBJECT(coloursel), "user-data");
1710
1711 #if GTK_CHECK_VERSION(2,0,0)
1712     {
1713         GtkColorSelection *cs = GTK_COLOR_SELECTION
1714             (gtk_color_selection_dialog_get_color_selection
1715              (GTK_COLOR_SELECTION_DIALOG(coloursel)));
1716         GdkColor col;
1717         gtk_color_selection_get_current_color(cs, &col);
1718         dp->coloursel_result.r = col.red / 0x0100;
1719         dp->coloursel_result.g = col.green / 0x0100;
1720         dp->coloursel_result.b = col.blue / 0x0100;
1721     }
1722 #else
1723     {
1724         GtkColorSelection *cs = GTK_COLOR_SELECTION
1725             (gtk_color_selection_dialog_get_color_selection
1726              (GTK_COLOR_SELECTION_DIALOG(coloursel)));
1727         gdouble cvals[4];
1728         gtk_color_selection_get_color(cs, cvals);
1729         dp->coloursel_result.r = (int) (255 * cvals[0]);
1730         dp->coloursel_result.g = (int) (255 * cvals[1]);
1731         dp->coloursel_result.b = (int) (255 * cvals[2]);
1732     }
1733 #endif
1734     dp->coloursel_result.ok = TRUE;
1735     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_CALLBACK);
1736 }
1737
1738 static void coloursel_cancel(GtkButton *button, gpointer data)
1739 {
1740     struct dlgparam *dp = (struct dlgparam *)data;
1741     gpointer coloursel = g_object_get_data(G_OBJECT(button), "user-data");
1742     struct uctrl *uc = g_object_get_data(G_OBJECT(coloursel), "user-data");
1743     dp->coloursel_result.ok = FALSE;
1744     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_CALLBACK);
1745 }
1746
1747 #endif /* end of coloursel response handlers */
1748
1749 static void filefont_clicked(GtkButton *button, gpointer data)
1750 {
1751     struct dlgparam *dp = (struct dlgparam *)data;
1752     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1753
1754     if (uc->ctrl->generic.type == CTRL_FILESELECT) {
1755 #ifdef USE_GTK_FILE_CHOOSER_DIALOG
1756         GtkWidget *filechoose = gtk_file_chooser_dialog_new
1757             (uc->ctrl->fileselect.title, GTK_WINDOW(dp->window),
1758              (uc->ctrl->fileselect.for_writing ?
1759               GTK_FILE_CHOOSER_ACTION_SAVE :
1760               GTK_FILE_CHOOSER_ACTION_OPEN),
1761              STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL,
1762              STANDARD_OPEN_LABEL, GTK_RESPONSE_ACCEPT,
1763              (const gchar *)NULL);
1764         gtk_window_set_modal(GTK_WINDOW(filechoose), TRUE);
1765         g_object_set_data(G_OBJECT(filechoose), "user-data", (gpointer)uc);
1766         g_signal_connect(G_OBJECT(filechoose), "response",
1767                          G_CALLBACK(filechoose_response), (gpointer)dp);
1768         gtk_widget_show(filechoose);
1769 #else
1770         GtkWidget *filesel =
1771             gtk_file_selection_new(uc->ctrl->fileselect.title);
1772         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
1773         g_object_set_data
1774             (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "user-data",
1775              (gpointer)filesel);
1776         g_object_set_data(G_OBJECT(filesel), "user-data", (gpointer)uc);
1777         g_signal_connect
1778             (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
1779              G_CALLBACK(filesel_ok), (gpointer)dp);
1780         g_signal_connect_swapped
1781             (G_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
1782              G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
1783         g_signal_connect_swapped
1784             (G_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button), "clicked",
1785              G_CALLBACK(gtk_widget_destroy), (gpointer)filesel);
1786         gtk_widget_show(filesel);
1787 #endif
1788     }
1789
1790     if (uc->ctrl->generic.type == CTRL_FONTSELECT) {
1791         const gchar *fontname = gtk_entry_get_text(GTK_ENTRY(uc->entry));
1792
1793 #if !GTK_CHECK_VERSION(2,0,0)
1794
1795         /*
1796          * Use the GTK 1 standard font selector.
1797          */
1798
1799         gchar *spacings[] = { "c", "m", NULL };
1800         GtkWidget *fontsel =
1801             gtk_font_selection_dialog_new("Select a font");
1802         gtk_window_set_modal(GTK_WINDOW(fontsel), TRUE);
1803         gtk_font_selection_dialog_set_filter
1804             (GTK_FONT_SELECTION_DIALOG(fontsel),
1805              GTK_FONT_FILTER_BASE, GTK_FONT_ALL,
1806              NULL, NULL, NULL, NULL, spacings, NULL);
1807         if (!gtk_font_selection_dialog_set_font_name
1808             (GTK_FONT_SELECTION_DIALOG(fontsel), fontname)) {
1809             /*
1810              * If the font name wasn't found as it was, try opening
1811              * it and extracting its FONT property. This should
1812              * have the effect of mapping short aliases into true
1813              * XLFDs.
1814              */
1815             GdkFont *font = gdk_font_load(fontname);
1816             if (font) {
1817                 XFontStruct *xfs = GDK_FONT_XFONT(font);
1818                 Display *disp = GDK_FONT_XDISPLAY(font);
1819                 Atom fontprop = XInternAtom(disp, "FONT", False);
1820                 unsigned long ret;
1821                 gdk_font_ref(font);
1822                 if (XGetFontProperty(xfs, fontprop, &ret)) {
1823                     char *name = XGetAtomName(disp, (Atom)ret);
1824                     if (name)
1825                         gtk_font_selection_dialog_set_font_name
1826                         (GTK_FONT_SELECTION_DIALOG(fontsel), name);
1827                 }
1828                 gdk_font_unref(font);
1829             }
1830         }
1831         g_object_set_data
1832             (G_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
1833              "user-data", (gpointer)fontsel);
1834         g_object_set_data(G_OBJECT(fontsel), "user-data", (gpointer)uc);
1835         g_signal_connect
1836             (G_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
1837              "clicked", G_CALLBACK(fontsel_ok), (gpointer)dp);
1838         g_signal_connect_swapped
1839             (G_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
1840              "clicked", G_CALLBACK(gtk_widget_destroy),
1841              (gpointer)fontsel);
1842         g_signal_connect_swapped
1843             (G_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->cancel_button),
1844              "clicked", G_CALLBACK(gtk_widget_destroy),
1845              (gpointer)fontsel);
1846         gtk_widget_show(fontsel);
1847
1848 #else /* !GTK_CHECK_VERSION(2,0,0) */
1849
1850         /*
1851          * Use the unifontsel code provided in gtkfont.c.
1852          */
1853
1854         unifontsel *fontsel = unifontsel_new("Select a font");
1855
1856         gtk_window_set_modal(fontsel->window, TRUE);
1857         unifontsel_set_name(fontsel, fontname);
1858
1859         g_object_set_data(G_OBJECT(fontsel->ok_button),
1860                           "user-data", (gpointer)fontsel);
1861         fontsel->user_data = uc;
1862         g_signal_connect(G_OBJECT(fontsel->ok_button), "clicked",
1863                          G_CALLBACK(fontsel_ok), (gpointer)dp);
1864         g_signal_connect_swapped(G_OBJECT(fontsel->ok_button), "clicked",
1865                                  G_CALLBACK(unifontsel_destroy),
1866                                  (gpointer)fontsel);
1867         g_signal_connect_swapped(G_OBJECT(fontsel->cancel_button),"clicked",
1868                                  G_CALLBACK(unifontsel_destroy),
1869                                  (gpointer)fontsel);
1870
1871         gtk_widget_show(GTK_WIDGET(fontsel->window));
1872
1873 #endif /* !GTK_CHECK_VERSION(2,0,0) */
1874
1875     }
1876 }
1877
1878 #if !GTK_CHECK_VERSION(3,0,0)
1879 static void label_sizealloc(GtkWidget *widget, GtkAllocation *alloc,
1880                             gpointer data)
1881 {
1882     struct dlgparam *dp = (struct dlgparam *)data;
1883     struct uctrl *uc = dlg_find_bywidget(dp, widget);
1884
1885     gtk_widget_set_size_request(uc->text, alloc->width, -1);
1886     gtk_label_set_text(GTK_LABEL(uc->text), uc->ctrl->generic.label);
1887     g_signal_handler_disconnect(G_OBJECT(uc->text), uc->textsig);
1888 }
1889 #endif
1890
1891 /* ----------------------------------------------------------------------
1892  * This function does the main layout work: it reads a controlset,
1893  * it creates the relevant GTK controls, and returns a GtkWidget
1894  * containing the result. (This widget might be a title of some
1895  * sort, it might be a Columns containing many controls, or it
1896  * might be a GtkFrame containing a Columns; whatever it is, it's
1897  * definitely a GtkWidget and should probably be added to a
1898  * GtkVbox.)
1899  *
1900  * `win' is required for setting the default button. If it is
1901  * non-NULL, all buttons created will be default-capable (so they
1902  * have extra space round them for the default highlight).
1903  */
1904 GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
1905                         struct controlset *s, GtkWindow *win)
1906 {
1907     Columns *cols;
1908     GtkWidget *ret;
1909     int i;
1910
1911     if (!s->boxname && s->boxtitle) {
1912         /* This controlset is a panel title. */
1913         return gtk_label_new(s->boxtitle);
1914     }
1915
1916     /*
1917      * Otherwise, we expect to be laying out actual controls, so
1918      * we'll start by creating a Columns for the purpose.
1919      */
1920     cols = COLUMNS(columns_new(4));
1921     ret = GTK_WIDGET(cols);
1922     gtk_widget_show(ret);
1923
1924     /*
1925      * Create a containing frame if we have a box name.
1926      */
1927     if (*s->boxname) {
1928         ret = gtk_frame_new(s->boxtitle);   /* NULL is valid here */
1929         gtk_container_set_border_width(GTK_CONTAINER(cols), 4);
1930         gtk_container_add(GTK_CONTAINER(ret), GTK_WIDGET(cols));
1931         gtk_widget_show(ret);
1932     }
1933
1934     /*
1935      * Now iterate through the controls themselves, create them,
1936      * and add them to the Columns.
1937      */
1938     for (i = 0; i < s->ncontrols; i++) {
1939         union control *ctrl = s->ctrls[i];
1940         struct uctrl *uc;
1941         int left = FALSE;
1942         GtkWidget *w = NULL;
1943
1944         switch (ctrl->generic.type) {
1945           case CTRL_COLUMNS:
1946             {
1947                 static const int simplecols[1] = { 100 };
1948                 columns_set_cols(cols, ctrl->columns.ncols,
1949                                  (ctrl->columns.percentages ?
1950                                   ctrl->columns.percentages : simplecols));
1951             }
1952             continue;                  /* no actual control created */
1953           case CTRL_TABDELAY:
1954             {
1955                 struct uctrl *uc = dlg_find_byctrl(dp, ctrl->tabdelay.ctrl);
1956                 if (uc)
1957                     columns_taborder_last(cols, uc->toplevel);
1958             }
1959             continue;                  /* no actual control created */
1960         }
1961
1962         uc = snew(struct uctrl);
1963         uc->ctrl = ctrl;
1964         uc->buttons = NULL;
1965         uc->entry = NULL;
1966 #if !GTK_CHECK_VERSION(2,4,0)
1967         uc->list = uc->menu = uc->optmenu = NULL;
1968 #else
1969         uc->combo = NULL;
1970 #endif
1971 #if GTK_CHECK_VERSION(2,0,0)
1972         uc->treeview = NULL;
1973         uc->listmodel = NULL;
1974 #endif
1975         uc->button = uc->text = NULL;
1976         uc->label = NULL;
1977         uc->nclicks = 0;
1978
1979         switch (ctrl->generic.type) {
1980           case CTRL_BUTTON:
1981             w = gtk_button_new_with_label(ctrl->generic.label);
1982             if (win) {
1983                 gtk_widget_set_can_default(w, TRUE);
1984                 if (ctrl->button.isdefault)
1985                     gtk_window_set_default(win, w);
1986                 if (ctrl->button.iscancel)
1987                     dp->cancelbutton = w;
1988             }
1989             g_signal_connect(G_OBJECT(w), "clicked",
1990                              G_CALLBACK(button_clicked), dp);
1991             g_signal_connect(G_OBJECT(w), "focus_in_event",
1992                              G_CALLBACK(widget_focus), dp);
1993             shortcut_add(scs, gtk_bin_get_child(GTK_BIN(w)),
1994                          ctrl->button.shortcut, SHORTCUT_UCTRL, uc);
1995             break;
1996           case CTRL_CHECKBOX:
1997             w = gtk_check_button_new_with_label(ctrl->generic.label);
1998             g_signal_connect(G_OBJECT(w), "toggled",
1999                              G_CALLBACK(button_toggled), dp);
2000             g_signal_connect(G_OBJECT(w), "focus_in_event",
2001                              G_CALLBACK(widget_focus), dp);
2002             shortcut_add(scs, gtk_bin_get_child(GTK_BIN(w)),
2003                          ctrl->checkbox.shortcut, SHORTCUT_UCTRL, uc);
2004             left = TRUE;
2005             break;
2006           case CTRL_RADIO:
2007             /*
2008              * Radio buttons get to go inside their own Columns, no
2009              * matter what.
2010              */
2011             {
2012                 gint i, *percentages;
2013                 GSList *group;
2014
2015                 w = columns_new(0);
2016                 if (ctrl->generic.label) {
2017                     GtkWidget *label = gtk_label_new(ctrl->generic.label);
2018                     columns_add(COLUMNS(w), label, 0, 1);
2019                     columns_force_left_align(COLUMNS(w), label);
2020                     gtk_widget_show(label);
2021                     shortcut_add(scs, label, ctrl->radio.shortcut,
2022                                  SHORTCUT_UCTRL, uc);
2023                     uc->label = label;
2024                 }
2025                 percentages = g_new(gint, ctrl->radio.ncolumns);
2026                 for (i = 0; i < ctrl->radio.ncolumns; i++) {
2027                     percentages[i] =
2028                         ((100 * (i+1) / ctrl->radio.ncolumns) -
2029                          100 * i / ctrl->radio.ncolumns);
2030                 }
2031                 columns_set_cols(COLUMNS(w), ctrl->radio.ncolumns,
2032                                  percentages);
2033                 g_free(percentages);
2034                 group = NULL;
2035
2036                 uc->nbuttons = ctrl->radio.nbuttons;
2037                 uc->buttons = snewn(uc->nbuttons, GtkWidget *);
2038
2039                 for (i = 0; i < ctrl->radio.nbuttons; i++) {
2040                     GtkWidget *b;
2041                     gint colstart;
2042
2043                     b = (gtk_radio_button_new_with_label
2044                          (group, ctrl->radio.buttons[i]));
2045                     uc->buttons[i] = b;
2046                     group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(b));
2047                     colstart = i % ctrl->radio.ncolumns;
2048                     columns_add(COLUMNS(w), b, colstart,
2049                                 (i == ctrl->radio.nbuttons-1 ?
2050                                  ctrl->radio.ncolumns - colstart : 1));
2051                     columns_force_left_align(COLUMNS(w), b);
2052                     gtk_widget_show(b);
2053                     g_signal_connect(G_OBJECT(b), "toggled",
2054                                      G_CALLBACK(button_toggled), dp);
2055                     g_signal_connect(G_OBJECT(b), "focus_in_event",
2056                                      G_CALLBACK(widget_focus), dp);
2057                     if (ctrl->radio.shortcuts) {
2058                         shortcut_add(scs, gtk_bin_get_child(GTK_BIN(b)),
2059                                      ctrl->radio.shortcuts[i],
2060                                      SHORTCUT_UCTRL, uc);
2061                     }
2062                 }
2063             }
2064             break;
2065           case CTRL_EDITBOX:
2066             {
2067                 GtkWidget *signalobject;
2068
2069                 if (ctrl->editbox.has_list) {
2070 #if !GTK_CHECK_VERSION(2,4,0)
2071                     /*
2072                      * GTK 1 combo box.
2073                      */
2074                     w = gtk_combo_new();
2075                     gtk_combo_set_value_in_list(GTK_COMBO(w), FALSE, TRUE);
2076                     uc->entry = GTK_COMBO(w)->entry;
2077                     uc->list = GTK_COMBO(w)->list;
2078                     signalobject = uc->entry;
2079 #else
2080                     /*
2081                      * GTK 2 combo box.
2082                      */
2083                     uc->listmodel = gtk_list_store_new(2, G_TYPE_INT,
2084                                                        G_TYPE_STRING);
2085                     w = gtk_combo_box_new_with_model_and_entry
2086                         (GTK_TREE_MODEL(uc->listmodel));
2087                     g_object_set(G_OBJECT(w), "entry-text-column", 1,
2088                                  (const char *)NULL);
2089                     /* We cannot support password combo boxes. */
2090                     assert(!ctrl->editbox.password);
2091                     uc->combo = w;
2092                     signalobject = uc->combo;
2093 #endif
2094                 } else {
2095                     w = gtk_entry_new();
2096                     if (ctrl->editbox.password)
2097                         gtk_entry_set_visibility(GTK_ENTRY(w), FALSE);
2098                     uc->entry = w;
2099                     signalobject = w;
2100                 }
2101                 uc->entrysig =
2102                     g_signal_connect(G_OBJECT(signalobject), "changed",
2103                                      G_CALLBACK(editbox_changed), dp);
2104                 g_signal_connect(G_OBJECT(signalobject), "key_press_event",
2105                                  G_CALLBACK(editbox_key), dp);
2106                 g_signal_connect(G_OBJECT(signalobject), "focus_in_event",
2107                                  G_CALLBACK(widget_focus), dp);
2108                 g_signal_connect(G_OBJECT(signalobject), "focus_out_event",
2109                                  G_CALLBACK(editbox_lostfocus), dp);
2110                 g_signal_connect(G_OBJECT(signalobject), "focus_out_event",
2111                                  G_CALLBACK(editbox_lostfocus), dp);
2112
2113 #if !GTK_CHECK_VERSION(3,0,0)
2114                 /*
2115                  * Edit boxes, for some strange reason, have a minimum
2116                  * width of 150 in GTK 1.2. We don't want this - we'd
2117                  * rather the edit boxes acquired their natural width
2118                  * from the column layout of the rest of the box.
2119                  */
2120                 {
2121                     GtkRequisition req;
2122                     gtk_widget_size_request(w, &req);
2123                     gtk_widget_set_size_request(w, 10, req.height);
2124                 }
2125 #else
2126                 /*
2127                  * In GTK 3, this is still true, but there's a special
2128                  * method for GtkEntry in particular to fix it.
2129                  */
2130                 if (GTK_IS_ENTRY(w))
2131                     gtk_entry_set_width_chars(GTK_ENTRY(w), 1);
2132 #endif
2133
2134                 if (ctrl->generic.label) {
2135                     GtkWidget *label, *container;
2136
2137                     label = gtk_label_new(ctrl->generic.label);
2138
2139                     shortcut_add(scs, label, ctrl->editbox.shortcut,
2140                                  SHORTCUT_FOCUS, uc->entry);
2141
2142                     container = columns_new(4);
2143                     if (ctrl->editbox.percentwidth == 100) {
2144                         columns_add(COLUMNS(container), label, 0, 1);
2145                         columns_force_left_align(COLUMNS(container), label);
2146                         columns_add(COLUMNS(container), w, 0, 1);
2147                     } else {
2148                         gint percentages[2];
2149                         percentages[1] = ctrl->editbox.percentwidth;
2150                         percentages[0] = 100 - ctrl->editbox.percentwidth;
2151                         columns_set_cols(COLUMNS(container), 2, percentages);
2152                         columns_add(COLUMNS(container), label, 0, 1);
2153                         columns_force_left_align(COLUMNS(container), label);
2154                         columns_add(COLUMNS(container), w, 1, 1);
2155                         columns_force_same_height(COLUMNS(container),
2156                                                   label, w);
2157                     }
2158                     gtk_widget_show(label);
2159                     gtk_widget_show(w);
2160
2161                     w = container;
2162                     uc->label = label;
2163                 }
2164             }
2165             break;
2166           case CTRL_FILESELECT:
2167           case CTRL_FONTSELECT:
2168             {
2169                 GtkWidget *ww;
2170                 const char *browsebtn =
2171                     (ctrl->generic.type == CTRL_FILESELECT ?
2172                      "Browse..." : "Change...");
2173
2174                 gint percentages[] = { 75, 25 };
2175                 w = columns_new(4);
2176                 columns_set_cols(COLUMNS(w), 2, percentages);
2177
2178                 if (ctrl->generic.label) {
2179                     ww = gtk_label_new(ctrl->generic.label);
2180                     columns_add(COLUMNS(w), ww, 0, 2);
2181                     columns_force_left_align(COLUMNS(w), ww);
2182                     gtk_widget_show(ww);
2183                     shortcut_add(scs, ww,
2184                                  (ctrl->generic.type == CTRL_FILESELECT ?
2185                                   ctrl->fileselect.shortcut :
2186                                   ctrl->fontselect.shortcut),
2187                                  SHORTCUT_UCTRL, uc);
2188                     uc->label = ww;
2189                 }
2190
2191                 uc->entry = ww = gtk_entry_new();
2192 #if !GTK_CHECK_VERSION(3,0,0)
2193                 {
2194                     GtkRequisition req;
2195                     gtk_widget_size_request(ww, &req);
2196                     gtk_widget_set_size_request(ww, 10, req.height);
2197                 }
2198 #else
2199                 gtk_entry_set_width_chars(GTK_ENTRY(ww), 1);
2200 #endif
2201                 columns_add(COLUMNS(w), ww, 0, 1);
2202                 gtk_widget_show(ww);
2203
2204                 uc->button = ww = gtk_button_new_with_label(browsebtn);
2205                 columns_add(COLUMNS(w), ww, 1, 1);
2206                 gtk_widget_show(ww);
2207
2208                 columns_force_same_height(COLUMNS(w), uc->entry, uc->button);
2209
2210                 g_signal_connect(G_OBJECT(uc->entry), "key_press_event",
2211                                  G_CALLBACK(editbox_key), dp);
2212                 uc->entrysig =
2213                     g_signal_connect(G_OBJECT(uc->entry), "changed",
2214                                      G_CALLBACK(editbox_changed), dp);
2215                 g_signal_connect(G_OBJECT(uc->entry), "focus_in_event",
2216                                  G_CALLBACK(widget_focus), dp);
2217                 g_signal_connect(G_OBJECT(uc->button), "focus_in_event",
2218                                  G_CALLBACK(widget_focus), dp);
2219                 g_signal_connect(G_OBJECT(ww), "clicked",
2220                                  G_CALLBACK(filefont_clicked), dp);
2221             }
2222             break;
2223           case CTRL_LISTBOX:
2224
2225 #if GTK_CHECK_VERSION(2,0,0)
2226             /*
2227              * First construct the list data store, with the right
2228              * number of columns.
2229              */
2230 #  if !GTK_CHECK_VERSION(2,4,0)
2231             /* (For GTK 2.0 to 2.3, we do this for full listboxes only,
2232              * because combo boxes are still done the old GTK1 way.) */
2233             if (ctrl->listbox.height > 0)
2234 #  endif
2235             {
2236                 GType *types;
2237                 int i;
2238                 int cols;
2239
2240                 cols = ctrl->listbox.ncols;
2241                 cols = cols ? cols : 1;
2242                 types = snewn(1 + cols, GType);
2243
2244                 types[0] = G_TYPE_INT;
2245                 for (i = 0; i < cols; i++)
2246                     types[i+1] = G_TYPE_STRING;
2247
2248                 uc->listmodel = gtk_list_store_newv(1 + cols, types);
2249
2250                 sfree(types);
2251             }
2252 #endif
2253
2254             /*
2255              * See if it's a drop-down list (non-editable combo
2256              * box).
2257              */
2258             if (ctrl->listbox.height == 0) {
2259 #if !GTK_CHECK_VERSION(2,4,0)
2260                 /*
2261                  * GTK1 and early-GTK2 option-menu style of
2262                  * drop-down list.
2263                  */
2264                 uc->optmenu = w = gtk_option_menu_new();
2265                 uc->menu = gtk_menu_new();
2266                 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), uc->menu);
2267                 g_object_set_data(G_OBJECT(uc->menu), "user-data",
2268                                   (gpointer)uc->optmenu);
2269                 g_signal_connect(G_OBJECT(uc->optmenu), "focus_in_event",
2270                                  G_CALLBACK(widget_focus), dp);
2271 #else
2272                 /*
2273                  * Late-GTK2 style using a GtkComboBox.
2274                  */
2275                 GtkCellRenderer *cr;
2276
2277                 /*
2278                  * Create a non-editable GtkComboBox (that is, not
2279                  * its subclass GtkComboBoxEntry).
2280                  */
2281                 w = gtk_combo_box_new_with_model
2282                     (GTK_TREE_MODEL(uc->listmodel));
2283                 uc->combo = w;
2284
2285                 /*
2286                  * Tell it how to render a list item (i.e. which
2287                  * column to look at in the list model).
2288                  */
2289                 cr = gtk_cell_renderer_text_new();
2290                 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(w), cr, TRUE);
2291                 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(w), cr,
2292                                                "text", 1, NULL);
2293
2294                 /*
2295                  * And tell it to notify us when the selection
2296                  * changes.
2297                  */
2298                 g_signal_connect(G_OBJECT(w), "changed",
2299                                  G_CALLBACK(droplist_selchange), dp);
2300
2301                 g_signal_connect(G_OBJECT(w), "focus_in_event",
2302                                  G_CALLBACK(widget_focus), dp);
2303 #endif
2304             } else {
2305 #if !GTK_CHECK_VERSION(2,0,0)
2306                 /*
2307                  * GTK1-style full list box.
2308                  */
2309                 uc->list = gtk_list_new();
2310                 if (ctrl->listbox.multisel == 2) {
2311                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
2312                                                 GTK_SELECTION_EXTENDED);
2313                 } else if (ctrl->listbox.multisel == 1) {
2314                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
2315                                                 GTK_SELECTION_MULTIPLE);
2316                 } else {
2317                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
2318                                                 GTK_SELECTION_SINGLE);
2319                 }
2320                 w = gtk_scrolled_window_new(NULL, NULL);
2321                 gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(w),
2322                                                       uc->list);
2323                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(w),
2324                                                GTK_POLICY_NEVER,
2325                                                GTK_POLICY_AUTOMATIC);
2326                 uc->adj = gtk_scrolled_window_get_vadjustment
2327                     (GTK_SCROLLED_WINDOW(w));
2328
2329                 gtk_widget_show(uc->list);
2330                 g_signal_connect(G_OBJECT(uc->list), "selection-changed",
2331                                  G_CALLBACK(list_selchange), dp);
2332                 g_signal_connect(G_OBJECT(uc->list), "focus_in_event",
2333                                  G_CALLBACK(widget_focus), dp);
2334
2335                 /*
2336                  * Adjust the height of the scrolled window to the
2337                  * minimum given by the height parameter.
2338                  *
2339                  * This piece of guesswork is a horrid hack based
2340                  * on looking inside the GTK 1.2 sources
2341                  * (specifically gtkviewport.c, which appears to be
2342                  * the widget which provides the border around the
2343                  * scrolling area). Anyone lets me know how I can
2344                  * do this in a way which isn't at risk from GTK
2345                  * upgrades, I'd be grateful.
2346                  */
2347                 {
2348                     int edge;
2349                     edge = GTK_WIDGET(uc->list)->style->klass->ythickness;
2350                     gtk_widget_set_size_request(w, 10,
2351                                          2*edge + (ctrl->listbox.height *
2352                                                    get_listitemheight(w)));
2353                 }
2354
2355                 if (ctrl->listbox.draglist) {
2356                     /*
2357                      * GTK doesn't appear to make it easy to
2358                      * implement a proper draggable list; so
2359                      * instead I'm just going to have to put an Up
2360                      * and a Down button to the right of the actual
2361                      * list box. Ah well.
2362                      */
2363                     GtkWidget *cols, *button;
2364                     static const gint percentages[2] = { 80, 20 };
2365
2366                     cols = columns_new(4);
2367                     columns_set_cols(COLUMNS(cols), 2, percentages);
2368                     columns_add(COLUMNS(cols), w, 0, 1);
2369                     gtk_widget_show(w);
2370                     button = gtk_button_new_with_label("Up");
2371                     columns_add(COLUMNS(cols), button, 1, 1);
2372                     gtk_widget_show(button);
2373                     g_signal_connect(G_OBJECT(button), "clicked",
2374                                      G_CALLBACK(draglist_up), dp);
2375                     g_signal_connect(G_OBJECT(button), "focus_in_event",
2376                                      G_CALLBACK(widget_focus), dp);
2377                     button = gtk_button_new_with_label("Down");
2378                     columns_add(COLUMNS(cols), button, 1, 1);
2379                     gtk_widget_show(button);
2380                     g_signal_connect(G_OBJECT(button), "clicked",
2381                                      G_CALLBACK(draglist_down), dp);
2382                     g_signal_connect(G_OBJECT(button), "focus_in_event",
2383                                      G_CALLBACK(widget_focus), dp);
2384
2385                     w = cols;
2386                 }
2387 #else
2388                 /*
2389                  * GTK2 treeview-based full list box.
2390                  */
2391                 GtkTreeSelection *sel;
2392
2393                 /*
2394                  * Create the list box itself, its columns, and
2395                  * its containing scrolled window.
2396                  */
2397                 w = gtk_tree_view_new_with_model
2398                     (GTK_TREE_MODEL(uc->listmodel));
2399                 g_object_set_data(G_OBJECT(uc->listmodel), "user-data",
2400                                   (gpointer)w);
2401                 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2402                 sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(w));
2403                 gtk_tree_selection_set_mode
2404                     (sel, ctrl->listbox.multisel ? GTK_SELECTION_MULTIPLE :
2405                      GTK_SELECTION_SINGLE);
2406                 uc->treeview = w;
2407                 g_signal_connect(G_OBJECT(w), "row-activated",
2408                                  G_CALLBACK(listbox_doubleclick), dp);
2409                 g_signal_connect(G_OBJECT(w), "focus_in_event",
2410                                  G_CALLBACK(widget_focus), dp);
2411                 g_signal_connect(G_OBJECT(sel), "changed",
2412                                  G_CALLBACK(listbox_selchange), dp);
2413
2414                 if (ctrl->listbox.draglist) {
2415                     gtk_tree_view_set_reorderable(GTK_TREE_VIEW(w), TRUE);
2416                     g_signal_connect(G_OBJECT(uc->listmodel), "row-inserted",
2417                                      G_CALLBACK(listbox_reorder), dp);
2418                 }
2419
2420                 {
2421                     int i;
2422                     int cols;
2423
2424                     cols = ctrl->listbox.ncols;
2425                     cols = cols ? cols : 1;
2426                     for (i = 0; i < cols; i++) {
2427                         GtkTreeViewColumn *column;
2428                         GtkCellRenderer *cellrend;
2429                         /*
2430                          * It appears that GTK 2 doesn't leave us any
2431                          * particularly sensible way to honour the
2432                          * "percentages" specification in the ctrl
2433                          * structure.
2434                          */
2435                         cellrend = gtk_cell_renderer_text_new();
2436                         if (!ctrl->listbox.hscroll) {
2437                             g_object_set(G_OBJECT(cellrend),
2438                                          "ellipsize", PANGO_ELLIPSIZE_END,
2439                                          "ellipsize-set", TRUE,
2440                                          (const char *)NULL);
2441                         }
2442                         column = gtk_tree_view_column_new_with_attributes
2443                             ("heading", cellrend, "text", i+1, (char *)NULL);
2444                         gtk_tree_view_column_set_sizing
2445                             (column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
2446                         gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2447                     }
2448                 }
2449
2450                 {
2451                     GtkWidget *scroll;
2452
2453                     scroll = gtk_scrolled_window_new(NULL, NULL);
2454                     gtk_scrolled_window_set_shadow_type
2455                         (GTK_SCROLLED_WINDOW(scroll), GTK_SHADOW_IN);
2456                     gtk_widget_show(w);
2457                     gtk_container_add(GTK_CONTAINER(scroll), w);
2458                     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2459                                                    GTK_POLICY_AUTOMATIC,
2460                                                    GTK_POLICY_ALWAYS);
2461                     gtk_widget_set_size_request
2462                         (scroll, -1,
2463                          ctrl->listbox.height * get_listitemheight(w));
2464
2465                     w = scroll;
2466                 }
2467 #endif
2468             }
2469
2470             if (ctrl->generic.label) {
2471                 GtkWidget *label, *container;
2472
2473                 label = gtk_label_new(ctrl->generic.label);
2474 #if GTK_CHECK_VERSION(3,0,0)
2475                 gtk_label_set_width_chars(GTK_LABEL(label), 3);
2476 #endif
2477
2478                 shortcut_add(scs, label, ctrl->listbox.shortcut,
2479                              SHORTCUT_UCTRL, uc);
2480
2481                 container = columns_new(4);
2482                 if (ctrl->listbox.percentwidth == 100) {
2483                     columns_add(COLUMNS(container), label, 0, 1);
2484                     columns_force_left_align(COLUMNS(container), label);
2485                     columns_add(COLUMNS(container), w, 0, 1);
2486                 } else {
2487                     gint percentages[2];
2488                     percentages[1] = ctrl->listbox.percentwidth;
2489                     percentages[0] = 100 - ctrl->listbox.percentwidth;
2490                     columns_set_cols(COLUMNS(container), 2, percentages);
2491                     columns_add(COLUMNS(container), label, 0, 1);
2492                     columns_force_left_align(COLUMNS(container), label);
2493                     columns_add(COLUMNS(container), w, 1, 1);
2494                     columns_force_same_height(COLUMNS(container),
2495                                               label, w);
2496                 }
2497                 gtk_widget_show(label);
2498                 gtk_widget_show(w);
2499
2500                 w = container;
2501                 uc->label = label;
2502             }
2503
2504             break;
2505           case CTRL_TEXT:
2506 #if !GTK_CHECK_VERSION(3,0,0)
2507             /*
2508              * Wrapping text widgets don't sit well with the GTK2
2509              * layout model, in which widgets state a minimum size
2510              * and the whole window then adjusts to the smallest
2511              * size it can sensibly take given its contents. A
2512              * wrapping text widget _has_ no clear minimum size;
2513              * instead it has a range of possibilities. It can be
2514              * one line deep but 2000 wide, or two lines deep and
2515              * 1000 pixels, or three by 867, or four by 500 and so
2516              * on. It can be as short as you like provided you
2517              * don't mind it being wide, or as narrow as you like
2518              * provided you don't mind it being tall.
2519              *
2520              * Therefore, it fits very badly into the layout model.
2521              * Hence the only thing to do is pick a width and let
2522              * it choose its own number of lines. To do this I'm
2523              * going to cheat a little. All new wrapping text
2524              * widgets will be created with a minimal text content
2525              * "X"; then, after the rest of the dialog box is set
2526              * up and its size calculated, the text widgets will be
2527              * told their width and given their real text, which
2528              * will cause the size to be recomputed in the y
2529              * direction (because many of them will expand to more
2530              * than one line).
2531              */
2532             uc->text = w = gtk_label_new("X");
2533             uc->textsig =
2534                 g_signal_connect(G_OBJECT(w), "size-allocate",
2535                                  G_CALLBACK(label_sizealloc), dp);
2536 #else
2537             /*
2538              * In GTK3, this is all fixed, because the main aim of the
2539              * new 'height-for-width' geometry management is to make
2540              * wrapping labels behave sensibly. So now we can just do
2541              * the obvious thing.
2542              */
2543             uc->text = w = gtk_label_new(uc->ctrl->generic.label);
2544 #endif
2545             align_label_left(GTK_LABEL(w));
2546             gtk_label_set_line_wrap(GTK_LABEL(w), TRUE);
2547             break;
2548         }
2549
2550         assert(w != NULL);
2551
2552         columns_add(cols, w,
2553                     COLUMN_START(ctrl->generic.column),
2554                     COLUMN_SPAN(ctrl->generic.column));
2555         if (left)
2556             columns_force_left_align(cols, w);
2557         gtk_widget_show(w);
2558
2559         uc->toplevel = w;
2560         dlg_add_uctrl(dp, uc);
2561     }
2562
2563     return ret;
2564 }
2565
2566 struct selparam {
2567     struct dlgparam *dp;
2568     GtkNotebook *panels;
2569     GtkWidget *panel;
2570 #if !GTK_CHECK_VERSION(2,0,0)
2571     GtkWidget *treeitem;
2572 #else
2573     int depth;
2574     GtkTreePath *treepath;
2575 #endif
2576     struct Shortcuts shortcuts;
2577 };
2578
2579 #if GTK_CHECK_VERSION(2,0,0)
2580 static void treeselection_changed(GtkTreeSelection *treeselection,
2581                                   gpointer data)
2582 {
2583     struct selparam *sps = (struct selparam *)data, *sp;
2584     GtkTreeModel *treemodel;
2585     GtkTreeIter treeiter;
2586     gint spindex;
2587     gint page_num;
2588
2589     if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2590         return;
2591
2592     gtk_tree_model_get(treemodel, &treeiter, TREESTORE_PARAMS, &spindex, -1);
2593     sp = &sps[spindex];
2594
2595     page_num = gtk_notebook_page_num(sp->panels, sp->panel);
2596     gtk_notebook_set_current_page(sp->panels, page_num);
2597
2598     dlg_refresh(NULL, sp->dp);
2599
2600     sp->dp->shortcuts = &sp->shortcuts;
2601 }
2602 #else
2603 static void treeitem_sel(GtkItem *item, gpointer data)
2604 {
2605     struct selparam *sp = (struct selparam *)data;
2606     gint page_num;
2607
2608     page_num = gtk_notebook_page_num(sp->panels, sp->panel);
2609     gtk_notebook_set_page(sp->panels, page_num);
2610
2611     dlg_refresh(NULL, sp->dp);
2612
2613     sp->dp->shortcuts = &sp->shortcuts;
2614     sp->dp->currtreeitem = sp->treeitem;
2615 }
2616 #endif
2617
2618 static void window_destroy(GtkWidget *widget, gpointer data)
2619 {
2620     gtk_main_quit();
2621 }
2622
2623 #if !GTK_CHECK_VERSION(2,0,0)
2624 static int tree_grab_focus(struct dlgparam *dp)
2625 {
2626     int i, f;
2627
2628     /*
2629      * See if any of the treeitems has the focus.
2630      */
2631     f = -1;
2632     for (i = 0; i < dp->ntreeitems; i++)
2633         if (GTK_WIDGET_HAS_FOCUS(dp->treeitems[i])) {
2634             f = i;
2635             break;
2636         }
2637
2638     if (f >= 0)
2639         return FALSE;
2640     else {
2641         gtk_widget_grab_focus(dp->currtreeitem);
2642         return TRUE;
2643     }
2644 }
2645
2646 gint tree_focus(GtkContainer *container, GtkDirectionType direction,
2647                 gpointer data)
2648 {
2649     struct dlgparam *dp = (struct dlgparam *)data;
2650
2651     g_signal_stop_emission_by_name(G_OBJECT(container), "focus");
2652     /*
2653      * If there's a focused treeitem, we return FALSE to cause the
2654      * focus to move on to some totally other control. If not, we
2655      * focus the selected one.
2656      */
2657     return tree_grab_focus(dp);
2658 }
2659 #endif
2660
2661 int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
2662 {
2663     struct dlgparam *dp = (struct dlgparam *)data;
2664
2665     if (event->keyval == GDK_KEY_Escape && dp->cancelbutton) {
2666         g_signal_emit_by_name(G_OBJECT(dp->cancelbutton), "clicked");
2667         return TRUE;
2668     }
2669
2670     if ((event->state & GDK_MOD1_MASK) &&
2671         (unsigned char)event->string[0] > 0 &&
2672         (unsigned char)event->string[0] <= 127) {
2673         int schr = (unsigned char)event->string[0];
2674         struct Shortcut *sc = &dp->shortcuts->sc[schr];
2675
2676         switch (sc->action) {
2677           case SHORTCUT_TREE:
2678 #if GTK_CHECK_VERSION(2,0,0)
2679             gtk_widget_grab_focus(sc->widget);
2680 #else
2681             tree_grab_focus(dp);
2682 #endif
2683             break;
2684           case SHORTCUT_FOCUS:
2685             gtk_widget_grab_focus(sc->widget);
2686             break;
2687           case SHORTCUT_UCTRL:
2688             /*
2689              * We must do something sensible with a uctrl.
2690              * Precisely what this is depends on the type of
2691              * control.
2692              */
2693             switch (sc->uc->ctrl->generic.type) {
2694               case CTRL_CHECKBOX:
2695               case CTRL_BUTTON:
2696                 /* Check boxes and buttons get the focus _and_ get toggled. */
2697                 gtk_widget_grab_focus(sc->uc->toplevel);
2698                 g_signal_emit_by_name(G_OBJECT(sc->uc->toplevel), "clicked");
2699                 break;
2700               case CTRL_FILESELECT:
2701               case CTRL_FONTSELECT:
2702                 /* File/font selectors have their buttons pressed (ooer),
2703                  * and focus transferred to the edit box. */
2704                 g_signal_emit_by_name(G_OBJECT(sc->uc->button), "clicked");
2705                 gtk_widget_grab_focus(sc->uc->entry);
2706                 break;
2707               case CTRL_RADIO:
2708                 /*
2709                  * Radio buttons are fun, because they have
2710                  * multiple shortcuts. We must find whether the
2711                  * activated shortcut is the shortcut for the whole
2712                  * group, or for a particular button. In the former
2713                  * case, we find the currently selected button and
2714                  * focus it; in the latter, we focus-and-click the
2715                  * button whose shortcut was pressed.
2716                  */
2717                 if (schr == sc->uc->ctrl->radio.shortcut) {
2718                     int i;
2719                     for (i = 0; i < sc->uc->ctrl->radio.nbuttons; i++)
2720                         if (gtk_toggle_button_get_active
2721                             (GTK_TOGGLE_BUTTON(sc->uc->buttons[i]))) {
2722                             gtk_widget_grab_focus(sc->uc->buttons[i]);
2723                         }
2724                 } else if (sc->uc->ctrl->radio.shortcuts) {
2725                     int i;
2726                     for (i = 0; i < sc->uc->ctrl->radio.nbuttons; i++)
2727                         if (schr == sc->uc->ctrl->radio.shortcuts[i]) {
2728                             gtk_widget_grab_focus(sc->uc->buttons[i]);
2729                             g_signal_emit_by_name
2730                                 (G_OBJECT(sc->uc->buttons[i]), "clicked");
2731                         }
2732                 }
2733                 break;
2734               case CTRL_LISTBOX:
2735
2736 #if !GTK_CHECK_VERSION(2,4,0)
2737                 if (sc->uc->optmenu) {
2738                     GdkEventButton bev;
2739                     gint returnval;
2740
2741                     gtk_widget_grab_focus(sc->uc->optmenu);
2742                     /* Option menus don't work using the "clicked" signal.
2743                      * We need to manufacture a button press event :-/ */
2744                     bev.type = GDK_BUTTON_PRESS;
2745                     bev.button = 1;
2746                     g_signal_emit_by_name(G_OBJECT(sc->uc->optmenu),
2747                                           "button_press_event",
2748                                           &bev, &returnval);
2749                     break;
2750                 }
2751 #else
2752                 if (sc->uc->combo) {
2753                     gtk_widget_grab_focus(sc->uc->combo);
2754                     gtk_combo_box_popup(GTK_COMBO_BOX(sc->uc->combo));
2755                     break;
2756                 }
2757 #endif
2758 #if !GTK_CHECK_VERSION(2,0,0)
2759                 if (sc->uc->list) {
2760                     /*
2761                      * For GTK-1 style list boxes, we tell it to
2762                      * focus one of its children, which appears to
2763                      * do the Right Thing.
2764                      */
2765                     gtk_container_focus(GTK_CONTAINER(sc->uc->list),
2766                                         GTK_DIR_TAB_FORWARD);
2767                     break;
2768                 }
2769 #else
2770                 if (sc->uc->treeview) {
2771                     gtk_widget_grab_focus(sc->uc->treeview);
2772                     break;
2773                 }
2774 #endif
2775                 assert(!"We shouldn't get here");
2776                 break;
2777             }
2778             break;
2779         }
2780     }
2781
2782     return FALSE;
2783 }
2784
2785 #if !GTK_CHECK_VERSION(2,0,0)
2786 int tree_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
2787 {
2788     struct dlgparam *dp = (struct dlgparam *)data;
2789
2790     if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up ||
2791         event->keyval == GDK_Down || event->keyval == GDK_KP_Down) {
2792         int dir, i, j = -1;
2793         for (i = 0; i < dp->ntreeitems; i++)
2794             if (widget == dp->treeitems[i])
2795                 break;
2796         if (i < dp->ntreeitems) {
2797             if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
2798                 dir = -1;
2799             else
2800                 dir = +1;
2801
2802             while (1) {
2803                 i += dir;
2804                 if (i < 0 || i >= dp->ntreeitems)
2805                     break;             /* nothing in that dir to select */
2806                 /*
2807                  * Determine if this tree item is visible.
2808                  */
2809                 {
2810                     GtkWidget *w = dp->treeitems[i];
2811                     int vis = TRUE;
2812                     while (w && (GTK_IS_TREE_ITEM(w) || GTK_IS_TREE(w))) {
2813                         if (!GTK_WIDGET_VISIBLE(w)) {
2814                             vis = FALSE;
2815                             break;
2816                         }
2817                         w = w->parent;
2818                     }
2819                     if (vis) {
2820                         j = i;         /* got one */
2821                         break;
2822                     }
2823                 }
2824             }
2825         }
2826         g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
2827         if (j >= 0) {
2828             g_signal_emit_by_name(G_OBJECT(dp->treeitems[j]), "toggle");
2829             gtk_widget_grab_focus(dp->treeitems[j]);
2830         }
2831         return TRUE;
2832     }
2833
2834     /*
2835      * It's nice for Left and Right to expand and collapse tree
2836      * branches.
2837      */
2838     if (event->keyval == GDK_Left || event->keyval == GDK_KP_Left) {
2839         g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
2840         gtk_tree_item_collapse(GTK_TREE_ITEM(widget));
2841         return TRUE;
2842     }
2843     if (event->keyval == GDK_Right || event->keyval == GDK_KP_Right) {
2844         g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
2845         gtk_tree_item_expand(GTK_TREE_ITEM(widget));
2846         return TRUE;
2847     }
2848
2849     return FALSE;
2850 }
2851 #endif
2852
2853 static void shortcut_highlight(GtkWidget *labelw, int chr)
2854 {
2855     GtkLabel *label = GTK_LABEL(labelw);
2856     const gchar *currstr;
2857     gchar *pattern;
2858     int i;
2859
2860 #if !GTK_CHECK_VERSION(2,0,0)
2861     {
2862         gchar *currstr_nonconst;
2863         gtk_label_get(label, &currstr_nonconst);
2864         currstr = currstr_nonconst;
2865     }
2866 #else
2867     currstr = gtk_label_get_text(label);
2868 #endif
2869
2870     for (i = 0; currstr[i]; i++)
2871         if (tolower((unsigned char)currstr[i]) == chr) {
2872             pattern = dupprintf("%*s_", i, "");
2873             gtk_label_set_pattern(label, pattern);
2874             sfree(pattern);
2875             break;
2876         }
2877 }
2878
2879 void shortcut_add(struct Shortcuts *scs, GtkWidget *labelw,
2880                   int chr, int action, void *ptr)
2881 {
2882     if (chr == NO_SHORTCUT)
2883         return;
2884
2885     chr = tolower((unsigned char)chr);
2886
2887     assert(scs->sc[chr].action == SHORTCUT_EMPTY);
2888
2889     scs->sc[chr].action = action;
2890
2891     if (action == SHORTCUT_FOCUS || action == SHORTCUT_TREE) {
2892         scs->sc[chr].uc = NULL;
2893         scs->sc[chr].widget = (GtkWidget *)ptr;
2894     } else {
2895         scs->sc[chr].widget = NULL;
2896         scs->sc[chr].uc = (struct uctrl *)ptr;
2897     }
2898
2899     shortcut_highlight(labelw, chr);
2900 }
2901
2902 int get_listitemheight(GtkWidget *w)
2903 {
2904 #if !GTK_CHECK_VERSION(2,0,0)
2905     GtkWidget *listitem = gtk_list_item_new_with_label("foo");
2906     GtkRequisition req;
2907     gtk_widget_size_request(listitem, &req);
2908     g_object_ref_sink(G_OBJECT(listitem));
2909     return req.height;
2910 #else
2911     int height;
2912     GtkCellRenderer *cr = gtk_cell_renderer_text_new();
2913 #if GTK_CHECK_VERSION(3,0,0)
2914     {
2915         GtkRequisition req;
2916         /*
2917          * Since none of my list items wraps in this GUI, no
2918          * interesting width-for-height behaviour should be happening,
2919          * so I don't think it should matter here whether I ask for
2920          * the minimum or natural height.
2921          */
2922         gtk_cell_renderer_get_preferred_size(cr, w, &req, NULL);
2923         height = req.height;
2924     }
2925 #else
2926     gtk_cell_renderer_get_size(cr, w, NULL, NULL, NULL, NULL, &height);
2927 #endif
2928     g_object_ref(G_OBJECT(cr));
2929     g_object_ref_sink(G_OBJECT(cr));
2930     g_object_unref(G_OBJECT(cr));
2931     return height;
2932 #endif
2933 }
2934
2935 #if GTK_CHECK_VERSION(2,0,0)
2936 void initial_treeview_collapse(struct dlgparam *dp, GtkWidget *tree)
2937 {
2938     /*
2939      * Collapse the deeper branches of the treeview into the state we
2940      * like them to start off in. See comment below in do_config_box.
2941      */
2942     int i;
2943     for (i = 0; i < dp->nselparams; i++)
2944         if (dp->selparams[i].depth >= 2)
2945             gtk_tree_view_collapse_row(GTK_TREE_VIEW(tree),
2946                                        dp->selparams[i].treepath);
2947 }
2948 #endif
2949
2950 #if GTK_CHECK_VERSION(3,0,0)
2951 void treeview_map_event(GtkWidget *tree, gpointer data)
2952 {
2953     struct dlgparam *dp = (struct dlgparam *)data;
2954     GtkAllocation alloc;
2955     gtk_widget_get_allocation(tree, &alloc);
2956     gtk_widget_set_size_request(tree, alloc.width, -1);
2957     initial_treeview_collapse(dp, tree);
2958 }
2959 #endif
2960
2961 int do_config_box(const char *title, Conf *conf, int midsession,
2962                   int protcfginfo)
2963 {
2964     GtkWidget *window, *hbox, *vbox, *cols, *label,
2965         *tree, *treescroll, *panels, *panelvbox;
2966     int index, level, protocol;
2967     struct controlbox *ctrlbox;
2968     char *path;
2969 #if GTK_CHECK_VERSION(2,0,0)
2970     GtkTreeStore *treestore;
2971     GtkCellRenderer *treerenderer;
2972     GtkTreeViewColumn *treecolumn;
2973     GtkTreeSelection *treeselection;
2974     GtkTreeIter treeiterlevels[8];
2975 #else
2976     GtkTreeItem *treeitemlevels[8];
2977     GtkTree *treelevels[8];
2978 #endif
2979     struct dlgparam dp;
2980     struct Shortcuts scs;
2981
2982     struct selparam *selparams = NULL;
2983     int nselparams = 0, selparamsize = 0;
2984
2985     dlg_init(&dp);
2986
2987     for (index = 0; index < lenof(scs.sc); index++) {
2988         scs.sc[index].action = SHORTCUT_EMPTY;
2989     }
2990
2991     window = our_dialog_new();
2992
2993     ctrlbox = ctrl_new_box();
2994     protocol = conf_get_int(conf, CONF_protocol);
2995     setup_config_box(ctrlbox, midsession, protocol, protcfginfo);
2996     unix_setup_config_box(ctrlbox, midsession, protocol);
2997     gtk_setup_config_box(ctrlbox, midsession, window);
2998
2999     gtk_window_set_title(GTK_WINDOW(window), title);
3000     hbox = gtk_hbox_new(FALSE, 4);
3001     our_dialog_add_to_content_area(GTK_WINDOW(window), hbox, TRUE, TRUE, 0);
3002     gtk_container_set_border_width(GTK_CONTAINER(hbox), 10);
3003     gtk_widget_show(hbox);
3004     vbox = gtk_vbox_new(FALSE, 4);
3005     gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
3006     gtk_widget_show(vbox);
3007     cols = columns_new(4);
3008     gtk_box_pack_start(GTK_BOX(vbox), cols, FALSE, FALSE, 0);
3009     gtk_widget_show(cols);
3010     label = gtk_label_new("Category:");
3011     columns_add(COLUMNS(cols), label, 0, 1);
3012     columns_force_left_align(COLUMNS(cols), label);
3013     gtk_widget_show(label);
3014     treescroll = gtk_scrolled_window_new(NULL, NULL);
3015 #if GTK_CHECK_VERSION(2,0,0)
3016     treestore = gtk_tree_store_new
3017         (TREESTORE_NUM, G_TYPE_STRING, G_TYPE_INT);
3018     tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(treestore));
3019     gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree), FALSE);
3020     treerenderer = gtk_cell_renderer_text_new();
3021     treecolumn = gtk_tree_view_column_new_with_attributes
3022         ("Label", treerenderer, "text", 0, NULL);
3023     gtk_tree_view_append_column(GTK_TREE_VIEW(tree), treecolumn);
3024     treeselection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
3025     gtk_tree_selection_set_mode(treeselection, GTK_SELECTION_BROWSE);
3026     gtk_container_add(GTK_CONTAINER(treescroll), tree);
3027 #else
3028     tree = gtk_tree_new();
3029     gtk_tree_set_view_mode(GTK_TREE(tree), GTK_TREE_VIEW_ITEM);
3030     gtk_tree_set_selection_mode(GTK_TREE(tree), GTK_SELECTION_BROWSE);
3031     g_signal_connect(G_OBJECT(tree), "focus",
3032                      G_CALLBACK(tree_focus), &dp);
3033 #endif
3034     g_signal_connect(G_OBJECT(tree), "focus_in_event",
3035                      G_CALLBACK(widget_focus), &dp);
3036     shortcut_add(&scs, label, 'g', SHORTCUT_TREE, tree);
3037     gtk_widget_show(treescroll);
3038     gtk_box_pack_start(GTK_BOX(vbox), treescroll, TRUE, TRUE, 0);
3039     panels = gtk_notebook_new();
3040     gtk_notebook_set_show_tabs(GTK_NOTEBOOK(panels), FALSE);
3041     gtk_notebook_set_show_border(GTK_NOTEBOOK(panels), FALSE);
3042     gtk_box_pack_start(GTK_BOX(hbox), panels, TRUE, TRUE, 0);
3043     gtk_widget_show(panels);
3044
3045     panelvbox = NULL;
3046     path = NULL;
3047     level = 0;
3048     for (index = 0; index < ctrlbox->nctrlsets; index++) {
3049         struct controlset *s = ctrlbox->ctrlsets[index];
3050         GtkWidget *w;
3051
3052         if (!*s->pathname) {
3053             w = layout_ctrls(&dp, &scs, s, GTK_WINDOW(window));
3054
3055             our_dialog_set_action_area(GTK_WINDOW(window), w);
3056         } else {
3057             int j = path ? ctrl_path_compare(s->pathname, path) : 0;
3058             if (j != INT_MAX) {        /* add to treeview, start new panel */
3059                 char *c;
3060 #if GTK_CHECK_VERSION(2,0,0)
3061                 GtkTreeIter treeiter;
3062 #else
3063                 GtkWidget *treeitem;
3064 #endif
3065                 int first;
3066
3067                 /*
3068                  * We expect never to find an implicit path
3069                  * component. For example, we expect never to see
3070                  * A/B/C followed by A/D/E, because that would
3071                  * _implicitly_ create A/D. All our path prefixes
3072                  * are expected to contain actual controls and be
3073                  * selectable in the treeview; so we would expect
3074                  * to see A/D _explicitly_ before encountering
3075                  * A/D/E.
3076                  */
3077                 assert(j == ctrl_path_elements(s->pathname) - 1);
3078
3079                 c = strrchr(s->pathname, '/');
3080                 if (!c)
3081                     c = s->pathname;
3082                 else
3083                     c++;
3084
3085                 path = s->pathname;
3086
3087                 first = (panelvbox == NULL);
3088
3089                 panelvbox = gtk_vbox_new(FALSE, 4);
3090                 gtk_widget_show(panelvbox);
3091                 gtk_notebook_append_page(GTK_NOTEBOOK(panels), panelvbox,
3092                                          NULL);
3093                 if (first) {
3094                     gint page_num;
3095
3096                     page_num = gtk_notebook_page_num(GTK_NOTEBOOK(panels),
3097                                                      panelvbox);
3098                     gtk_notebook_set_current_page(GTK_NOTEBOOK(panels),
3099                                                   page_num);
3100                 }
3101
3102                 if (nselparams >= selparamsize) {
3103                     selparamsize += 16;
3104                     selparams = sresize(selparams, selparamsize,
3105                                         struct selparam);
3106                 }
3107                 selparams[nselparams].dp = &dp;
3108                 selparams[nselparams].panels = GTK_NOTEBOOK(panels);
3109                 selparams[nselparams].panel = panelvbox;
3110                 selparams[nselparams].shortcuts = scs;   /* structure copy */
3111
3112                 assert(j-1 < level);
3113
3114 #if GTK_CHECK_VERSION(2,0,0)
3115                 if (j > 0)
3116                     /* treeiterlevels[j-1] will always be valid because we
3117                      * don't allow implicit path components; see above.
3118                      */
3119                     gtk_tree_store_append(treestore, &treeiter,
3120                                           &treeiterlevels[j-1]);
3121                 else
3122                     gtk_tree_store_append(treestore, &treeiter, NULL);
3123                 gtk_tree_store_set(treestore, &treeiter,
3124                                    TREESTORE_PATH, c,
3125                                    TREESTORE_PARAMS, nselparams,
3126                                    -1);
3127                 treeiterlevels[j] = treeiter;
3128
3129                 selparams[nselparams].depth = j;
3130                 if (j > 0) {
3131                     selparams[nselparams].treepath =
3132                         gtk_tree_model_get_path(GTK_TREE_MODEL(treestore),
3133                                                 &treeiterlevels[j-1]);
3134                     /*
3135                      * We are going to collapse all tree branches
3136                      * at depth greater than 2, but not _yet_; see
3137                      * the comment at the call to
3138                      * gtk_tree_view_collapse_row below.
3139                      */
3140                     gtk_tree_view_expand_row(GTK_TREE_VIEW(tree),
3141                                              selparams[nselparams].treepath,
3142                                              FALSE);
3143                 } else {
3144                     selparams[nselparams].treepath = NULL;
3145                 }
3146 #else
3147                 treeitem = gtk_tree_item_new_with_label(c);
3148                 if (j > 0) {
3149                     if (!treelevels[j-1]) {
3150                         treelevels[j-1] = GTK_TREE(gtk_tree_new());
3151                         gtk_tree_item_set_subtree
3152                             (treeitemlevels[j-1],
3153                              GTK_WIDGET(treelevels[j-1]));
3154                         if (j < 2)
3155                             gtk_tree_item_expand(treeitemlevels[j-1]);
3156                         else
3157                             gtk_tree_item_collapse(treeitemlevels[j-1]);
3158                     }
3159                     gtk_tree_append(treelevels[j-1], treeitem);
3160                 } else {
3161                     gtk_tree_append(GTK_TREE(tree), treeitem);
3162                 }
3163                 treeitemlevels[j] = GTK_TREE_ITEM(treeitem);
3164                 treelevels[j] = NULL;
3165
3166                 g_signal_connect(G_OBJECT(treeitem), "key_press_event",
3167                                  G_CALLBACK(tree_key_press), &dp);
3168                 g_signal_connect(G_OBJECT(treeitem), "focus_in_event",
3169                                  G_CALLBACK(widget_focus), &dp);
3170
3171                 gtk_widget_show(treeitem);
3172
3173                 if (first)
3174                     gtk_tree_select_child(GTK_TREE(tree), treeitem);
3175                 selparams[nselparams].treeitem = treeitem;
3176 #endif
3177
3178                 level = j+1;
3179                 nselparams++;
3180             }
3181
3182             w = layout_ctrls(&dp, &selparams[nselparams-1].shortcuts, s, NULL);
3183             gtk_box_pack_start(GTK_BOX(panelvbox), w, FALSE, FALSE, 0);
3184             gtk_widget_show(w);
3185         }
3186     }
3187
3188 #if GTK_CHECK_VERSION(2,0,0)
3189     /*
3190      * We want our tree view to come up with all branches at depth 2
3191      * or more collapsed. However, if we start off with those branches
3192      * collapsed, then the tree view's size request will be calculated
3193      * based on the width of the collapsed tree, and then when the
3194      * collapsed branches are expanded later, the tree view will
3195      * jarringly change size.
3196      *
3197      * So instead we start with everything expanded; then, once the
3198      * tree view has computed its resulting width requirement, we
3199      * collapse the relevant rows, but force the width to be the value
3200      * we just retrieved. This arranges that the tree view is wide
3201      * enough to have all branches expanded without further resizing.
3202      */
3203
3204     dp.nselparams = nselparams;
3205     dp.selparams = selparams;
3206
3207 #if !GTK_CHECK_VERSION(3,0,0)
3208     {
3209         /*
3210          * In GTK2, we can just do the job right now.
3211          */
3212         GtkRequisition req;
3213         gtk_widget_size_request(tree, &req);
3214         initial_treeview_collapse(&dp, tree);
3215         gtk_widget_set_size_request(tree, req.width, -1);
3216     }
3217 #else
3218     /*
3219      * But in GTK3, we have to wait until the widget is about to be
3220      * mapped, because the size computation won't have been done yet.
3221      */
3222     g_signal_connect(G_OBJECT(tree), "map",
3223                      G_CALLBACK(treeview_map_event), &dp);
3224 #endif /* GTK 2 vs 3 */
3225 #endif /* GTK 2+ vs 1 */
3226
3227 #if GTK_CHECK_VERSION(2,0,0)
3228     g_signal_connect(G_OBJECT(treeselection), "changed",
3229                      G_CALLBACK(treeselection_changed), selparams);
3230 #else
3231     dp.ntreeitems = nselparams;
3232     dp.treeitems = snewn(dp.ntreeitems, GtkWidget *);
3233     for (index = 0; index < nselparams; index++) {
3234         g_signal_connect(G_OBJECT(selparams[index].treeitem), "select",
3235                          G_CALLBACK(treeitem_sel),
3236                          &selparams[index]);
3237         dp.treeitems[index] = selparams[index].treeitem;
3238     }
3239 #endif
3240
3241     dp.data = conf;
3242     dlg_refresh(NULL, &dp);
3243
3244     dp.shortcuts = &selparams[0].shortcuts;
3245 #if !GTK_CHECK_VERSION(2,0,0)
3246     dp.currtreeitem = dp.treeitems[0];
3247 #endif
3248     dp.lastfocus = NULL;
3249     dp.retval = 0;
3250     dp.window = window;
3251
3252     {
3253         /* in gtkwin.c */
3254         extern void set_window_icon(GtkWidget *window,
3255                                     const char *const *const *icon,
3256                                     int n_icon);
3257         extern const char *const *const cfg_icon[];
3258         extern const int n_cfg_icon;
3259         set_window_icon(window, cfg_icon, n_cfg_icon);
3260     }
3261
3262 #if !GTK_CHECK_VERSION(2,0,0)
3263     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(treescroll),
3264                                           tree);
3265 #endif
3266     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(treescroll),
3267                                    GTK_POLICY_NEVER,
3268                                    GTK_POLICY_AUTOMATIC);
3269     gtk_widget_show(tree);
3270
3271     gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
3272     gtk_widget_show(window);
3273
3274     /*
3275      * Set focus into the first available control.
3276      */
3277     for (index = 0; index < ctrlbox->nctrlsets; index++) {
3278         struct controlset *s = ctrlbox->ctrlsets[index];
3279         int done = 0;
3280         int j;
3281
3282         if (*s->pathname) {
3283             for (j = 0; j < s->ncontrols; j++)
3284                 if (s->ctrls[j]->generic.type != CTRL_TABDELAY &&
3285                     s->ctrls[j]->generic.type != CTRL_COLUMNS &&
3286                     s->ctrls[j]->generic.type != CTRL_TEXT) {
3287                     dlg_set_focus(s->ctrls[j], &dp);
3288                     dp.lastfocus = s->ctrls[j];
3289                     done = 1;
3290                     break;
3291                 }
3292         }
3293         if (done)
3294             break;
3295     }
3296
3297     g_signal_connect(G_OBJECT(window), "destroy",
3298                      G_CALLBACK(window_destroy), NULL);
3299     g_signal_connect(G_OBJECT(window), "key_press_event",
3300                      G_CALLBACK(win_key_press), &dp);
3301
3302     gtk_main();
3303     post_main();
3304
3305     dlg_cleanup(&dp);
3306     sfree(selparams);
3307     ctrl_free_box(ctrlbox);
3308
3309     return dp.retval;
3310 }
3311
3312 static void messagebox_handler(union control *ctrl, void *dlg,
3313                                void *data, int event)
3314 {
3315     if (event == EVENT_ACTION)
3316         dlg_end(dlg, ctrl->generic.context.i);
3317 }
3318 int messagebox(GtkWidget *parentwin, const char *title, const char *msg,
3319                int minwid, int selectable, ...)
3320 {
3321     GtkWidget *window, *w0, *w1;
3322     struct controlbox *ctrlbox;
3323     struct controlset *s0, *s1;
3324     union control *c, *textctrl;
3325     struct dlgparam dp;
3326     struct Shortcuts scs;
3327     int index, ncols, min_type;
3328     va_list ap;
3329
3330     dlg_init(&dp);
3331
3332     for (index = 0; index < lenof(scs.sc); index++) {
3333         scs.sc[index].action = SHORTCUT_EMPTY;
3334     }
3335
3336     ctrlbox = ctrl_new_box();
3337
3338     /*
3339      * Preliminary pass over the va_list, to count up the number of
3340      * buttons and find out what kinds there are.
3341      */
3342     ncols = 0;
3343     va_start(ap, selectable);
3344     min_type = +1;
3345     while (va_arg(ap, char *) != NULL) {
3346         int type;
3347
3348         (void) va_arg(ap, int);        /* shortcut */
3349         type = va_arg(ap, int);        /* normal/default/cancel */
3350         (void) va_arg(ap, int);        /* end value */
3351
3352         ncols++;
3353         if (min_type > type)
3354             min_type = type;
3355     }
3356     va_end(ap);
3357
3358     s0 = ctrl_getset(ctrlbox, "", "", "");
3359     c = ctrl_columns(s0, 2, 50, 50);
3360     c->columns.ncols = s0->ncolumns = ncols;
3361     c->columns.percentages = sresize(c->columns.percentages, ncols, int);
3362     for (index = 0; index < ncols; index++)
3363         c->columns.percentages[index] = (index+1)*100/ncols - index*100/ncols;
3364     va_start(ap, selectable);
3365     index = 0;
3366     while (1) {
3367         char *title = va_arg(ap, char *);
3368         int shortcut, type, value;
3369         if (title == NULL)
3370             break;
3371         shortcut = va_arg(ap, int);
3372         type = va_arg(ap, int);
3373         value = va_arg(ap, int);
3374         c = ctrl_pushbutton(s0, title, shortcut, HELPCTX(no_help),
3375                             messagebox_handler, I(value));
3376         c->generic.column = index++;
3377         if (type > 0)
3378             c->button.isdefault = TRUE;
3379
3380         /* We always arrange that _some_ button is labelled as
3381          * 'iscancel', so that pressing Escape will always cause
3382          * win_key_press to do something. The button we choose is
3383          * whichever has the smallest type value: this means that real
3384          * cancel buttons (labelled -1) will be picked if one is
3385          * there, or in cases where the options are yes/no (1,0) then
3386          * no will be picked, and if there's only one option (a box
3387          * that really is just showing a _message_ and not even asking
3388          * a question) then that will be picked. */
3389         if (type == min_type)
3390             c->button.iscancel = TRUE;
3391     }
3392     va_end(ap);
3393
3394     s1 = ctrl_getset(ctrlbox, "x", "", "");
3395     textctrl = ctrl_text(s1, msg, HELPCTX(no_help));
3396
3397     window = our_dialog_new();
3398     gtk_window_set_title(GTK_WINDOW(window), title);
3399     w0 = layout_ctrls(&dp, &scs, s0, GTK_WINDOW(window));
3400     our_dialog_set_action_area(GTK_WINDOW(window), w0);
3401     gtk_widget_show(w0);
3402     w1 = layout_ctrls(&dp, &scs, s1, GTK_WINDOW(window));
3403     gtk_container_set_border_width(GTK_CONTAINER(w1), 10);
3404     gtk_widget_set_size_request(w1, minwid+20, -1);
3405     our_dialog_add_to_content_area(GTK_WINDOW(window), w1, TRUE, TRUE, 0);
3406     gtk_widget_show(w1);
3407
3408     dp.shortcuts = &scs;
3409     dp.lastfocus = NULL;
3410     dp.retval = 0;
3411     dp.window = window;
3412
3413     if (selectable) {
3414 #if GTK_CHECK_VERSION(2,0,0)
3415         struct uctrl *uc = dlg_find_byctrl(&dp, textctrl);
3416         gtk_label_set_selectable(GTK_LABEL(uc->text), TRUE);
3417
3418         /*
3419          * GTK selectable labels have a habit of selecting their
3420          * entire contents when they gain focus. It's ugly to have
3421          * text in a message box start up all selected, so we suppress
3422          * this by manually selecting none of it - but we must do this
3423          * when the widget _already has_ focus, otherwise our work
3424          * will be undone when it gains it shortly.
3425          */
3426         gtk_widget_grab_focus(uc->text);
3427         gtk_label_select_region(GTK_LABEL(uc->text), 0, 0);
3428 #else
3429         (void)textctrl;                /* placate warning */
3430 #endif
3431     }
3432
3433     gtk_window_set_modal(GTK_WINDOW(window), TRUE);
3434     if (parentwin) {
3435         set_transient_window_pos(parentwin, window);
3436         gtk_window_set_transient_for(GTK_WINDOW(window),
3437                                      GTK_WINDOW(parentwin));
3438     } else
3439         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
3440     gtk_container_set_focus_child(GTK_CONTAINER(window), NULL);
3441     gtk_widget_show(window);
3442     gtk_window_set_focus(GTK_WINDOW(window), NULL);
3443
3444     g_signal_connect(G_OBJECT(window), "destroy",
3445                      G_CALLBACK(window_destroy), NULL);
3446     g_signal_connect(G_OBJECT(window), "key_press_event",
3447                      G_CALLBACK(win_key_press), &dp);
3448
3449     gtk_main();
3450     post_main();
3451
3452     dlg_cleanup(&dp);
3453     ctrl_free_box(ctrlbox);
3454
3455     return dp.retval;
3456 }
3457
3458 int reallyclose(void *frontend)
3459 {
3460     char *title = dupcat(appname, " Exit Confirmation", NULL);
3461     int ret = messagebox(GTK_WIDGET(get_window(frontend)),
3462                          title, "Are you sure you want to close this session?",
3463                          string_width("Most of the width of the above text"),
3464                          FALSE,
3465                          "Yes", 'y', +1, 1,
3466                          "No", 'n', -1, 0,
3467                          NULL);
3468     sfree(title);
3469     return ret;
3470 }
3471
3472 int verify_ssh_host_key(void *frontend, char *host, int port,
3473                         const char *keytype, char *keystr, char *fingerprint,
3474                         void (*callback)(void *ctx, int result), void *ctx)
3475 {
3476     static const char absenttxt[] =
3477         "The server's host key is not cached. You have no guarantee "
3478         "that the server is the computer you think it is.\n"
3479         "The server's %s key fingerprint is:\n"
3480         "%s\n"
3481         "If you trust this host, press \"Accept\" to add the key to "
3482         "PuTTY's cache and carry on connecting.\n"
3483         "If you want to carry on connecting just once, without "
3484         "adding the key to the cache, press \"Connect Once\".\n"
3485         "If you do not trust this host, press \"Cancel\" to abandon the "
3486         "connection.";
3487     static const char wrongtxt[] =
3488         "WARNING - POTENTIAL SECURITY BREACH!\n"
3489         "The server's host key does not match the one PuTTY has "
3490         "cached. This means that either the server administrator "
3491         "has changed the host key, or you have actually connected "
3492         "to another computer pretending to be the server.\n"
3493         "The new %s key fingerprint is:\n"
3494         "%s\n"
3495         "If you were expecting this change and trust the new key, "
3496         "press \"Accept\" to update PuTTY's cache and continue connecting.\n"
3497         "If you want to carry on connecting but without updating "
3498         "the cache, press \"Connect Once\".\n"
3499         "If you want to abandon the connection completely, press "
3500         "\"Cancel\" to cancel. Pressing \"Cancel\" is the ONLY guaranteed "
3501         "safe choice.";
3502     char *text;
3503     int ret;
3504
3505     /*
3506      * Verify the key.
3507      */
3508     ret = verify_host_key(host, port, keytype, keystr);
3509
3510     if (ret == 0)                      /* success - key matched OK */
3511         return 1;
3512
3513     text = dupprintf((ret == 2 ? wrongtxt : absenttxt), keytype, fingerprint);
3514
3515     ret = messagebox(GTK_WIDGET(get_window(frontend)),
3516                      "PuTTY Security Alert", text,
3517                      string_width(fingerprint),
3518                      TRUE,
3519                      "Accept", 'a', 0, 2,
3520                      "Connect Once", 'o', 0, 1,
3521                      "Cancel", 'c', -1, 0,
3522                      NULL);
3523
3524     sfree(text);
3525
3526     if (ret == 2) {
3527         store_host_key(host, port, keytype, keystr);
3528         return 1;                      /* continue with connection */
3529     } else if (ret == 1)
3530         return 1;                      /* continue with connection */
3531     return 0;                          /* do not continue with connection */
3532 }
3533
3534 /*
3535  * Ask whether the selected algorithm is acceptable (since it was
3536  * below the configured 'warn' threshold).
3537  */
3538 int askalg(void *frontend, const char *algtype, const char *algname,
3539            void (*callback)(void *ctx, int result), void *ctx)
3540 {
3541     static const char msg[] =
3542         "The first %s supported by the server is "
3543         "%s, which is below the configured warning threshold.\n"
3544         "Continue with connection?";
3545     char *text;
3546     int ret;
3547
3548     text = dupprintf(msg, algtype, algname);
3549     ret = messagebox(GTK_WIDGET(get_window(frontend)),
3550                      "PuTTY Security Alert", text,
3551                      string_width("Reasonably long line of text as a width"
3552                                   " template"),
3553                      FALSE,
3554                      "Yes", 'y', 0, 1,
3555                      "No", 'n', 0, 0,
3556                      NULL);
3557     sfree(text);
3558
3559     if (ret) {
3560         return 1;
3561     } else {
3562         return 0;
3563     }
3564 }
3565
3566 int askhk(void *frontend, const char *algname, const char *betteralgs,
3567           void (*callback)(void *ctx, int result), void *ctx)
3568 {
3569     static const char msg[] =
3570         "The first host key type we have stored for this server\n"
3571         "is %s, which is below the configured warning threshold.\n"
3572         "The server also provides the following types of host key\n"
3573         "above the threshold, which we do not have stored:\n"
3574         "%s\n"
3575         "Continue with connection?";
3576     char *text;
3577     int ret;
3578
3579     text = dupprintf(msg, algname, betteralgs);
3580     ret = messagebox(GTK_WIDGET(get_window(frontend)),
3581                      "PuTTY Security Alert", text,
3582                      string_width("is ecdsa-nistp521, which is"
3583                                   " below the configured warning threshold."),
3584                      FALSE,
3585                      "Yes", 'y', 0, 1,
3586                      "No", 'n', 0, 0,
3587                      NULL);
3588     sfree(text);
3589
3590     if (ret) {
3591         return 1;
3592     } else {
3593         return 0;
3594     }
3595 }
3596
3597 void old_keyfile_warning(void)
3598 {
3599     /*
3600      * This should never happen on Unix. We hope.
3601      */
3602 }
3603
3604 void fatal_message_box(void *window, const char *msg)
3605 {
3606     messagebox(window, "PuTTY Fatal Error", msg,
3607                string_width("REASONABLY LONG LINE OF TEXT FOR BASIC SANITY"),
3608                FALSE, "OK", 'o', 1, 1, NULL);
3609 }
3610
3611 void nonfatal_message_box(void *window, const char *msg)
3612 {
3613     messagebox(window, "PuTTY Error", msg,
3614                string_width("REASONABLY LONG LINE OF TEXT FOR BASIC SANITY"),
3615                FALSE, "OK", 'o', 1, 1, NULL);
3616 }
3617
3618 void fatalbox(const char *p, ...)
3619 {
3620     va_list ap;
3621     char *msg;
3622     va_start(ap, p);
3623     msg = dupvprintf(p, ap);
3624     va_end(ap);
3625     fatal_message_box(NULL, msg);
3626     sfree(msg);
3627     cleanup_exit(1);
3628 }
3629
3630 void nonfatal(const char *p, ...)
3631 {
3632     va_list ap;
3633     char *msg;
3634     va_start(ap, p);
3635     msg = dupvprintf(p, ap);
3636     va_end(ap);
3637     nonfatal_message_box(NULL, msg);
3638     sfree(msg);
3639 }
3640
3641 static GtkWidget *aboutbox = NULL;
3642
3643 static void about_close_clicked(GtkButton *button, gpointer data)
3644 {
3645     gtk_widget_destroy(aboutbox);
3646     aboutbox = NULL;
3647 }
3648
3649 static void about_key_press(GtkWidget *widget, GdkEventKey *event,
3650                             gpointer data)
3651 {
3652     if (event->keyval == GDK_KEY_Escape && aboutbox) {
3653         gtk_widget_destroy(aboutbox);
3654         aboutbox = NULL;
3655     }
3656 }
3657
3658 static void licence_clicked(GtkButton *button, gpointer data)
3659 {
3660     char *title;
3661
3662     title = dupcat(appname, " Licence", NULL);
3663     assert(aboutbox != NULL);
3664     messagebox(aboutbox, title, LICENCE_TEXT("\n\n"),
3665                string_width("LONGISH LINE OF TEXT SO THE LICENCE"
3666                             " BOX ISN'T EXCESSIVELY TALL AND THIN"),
3667                TRUE, "OK", 'o', 1, 1, NULL);
3668     sfree(title);
3669 }
3670
3671 void about_box(void *window)
3672 {
3673     GtkWidget *w;
3674     GtkBox *action_area;
3675     char *title;
3676
3677     if (aboutbox) {
3678         gtk_widget_grab_focus(aboutbox);
3679         return;
3680     }
3681
3682     aboutbox = our_dialog_new();
3683     gtk_container_set_border_width(GTK_CONTAINER(aboutbox), 10);
3684     title = dupcat("About ", appname, NULL);
3685     gtk_window_set_title(GTK_WINDOW(aboutbox), title);
3686     sfree(title);
3687
3688     w = gtk_button_new_with_label("Close");
3689     gtk_widget_set_can_default(w, TRUE);
3690     gtk_window_set_default(GTK_WINDOW(aboutbox), w);
3691     action_area = our_dialog_make_action_hbox(GTK_WINDOW(aboutbox));
3692     gtk_box_pack_end(action_area, w, FALSE, FALSE, 0);
3693     g_signal_connect(G_OBJECT(w), "clicked",
3694                      G_CALLBACK(about_close_clicked), NULL);
3695     gtk_widget_show(w);
3696
3697     w = gtk_button_new_with_label("View Licence");
3698     gtk_widget_set_can_default(w, TRUE);
3699     gtk_box_pack_end(action_area, w, FALSE, FALSE, 0);
3700     g_signal_connect(G_OBJECT(w), "clicked",
3701                      G_CALLBACK(licence_clicked), NULL);
3702     gtk_widget_show(w);
3703
3704     {
3705         char *buildinfo_text = buildinfo("\n");
3706         char *label_text = dupprintf
3707             ("%s\n\n%s\n\n%s\n\n%s",
3708              appname, ver, buildinfo_text,
3709              "Copyright " SHORT_COPYRIGHT_DETAILS ". All rights reserved");
3710         w = gtk_label_new(label_text);
3711         gtk_label_set_justify(GTK_LABEL(w), GTK_JUSTIFY_CENTER);
3712 #if GTK_CHECK_VERSION(2,0,0)
3713         gtk_label_set_selectable(GTK_LABEL(w), TRUE);
3714 #endif
3715         sfree(label_text);
3716     }
3717     our_dialog_add_to_content_area(GTK_WINDOW(aboutbox), w, FALSE, FALSE, 0);
3718 #if GTK_CHECK_VERSION(2,0,0)
3719     /*
3720      * Same precautions against initial select-all as in messagebox().
3721      */
3722     gtk_widget_grab_focus(w);
3723     gtk_label_select_region(GTK_LABEL(w), 0, 0);
3724 #endif
3725     gtk_widget_show(w);
3726
3727     g_signal_connect(G_OBJECT(aboutbox), "key_press_event",
3728                      G_CALLBACK(about_key_press), NULL);
3729
3730     set_transient_window_pos(GTK_WIDGET(window), aboutbox);
3731     gtk_window_set_transient_for(GTK_WINDOW(aboutbox),
3732                                  GTK_WINDOW(window));
3733     gtk_container_set_focus_child(GTK_CONTAINER(aboutbox), NULL);
3734     gtk_widget_show(aboutbox);
3735     gtk_window_set_focus(GTK_WINDOW(aboutbox), NULL);
3736 }
3737
3738 struct eventlog_stuff {
3739     GtkWidget *parentwin, *window;
3740     struct controlbox *eventbox;
3741     struct Shortcuts scs;
3742     struct dlgparam dp;
3743     union control *listctrl;
3744     char **events;
3745     int nevents, negsize;
3746     char *seldata;
3747     int sellen;
3748     int ignore_selchange;
3749 };
3750
3751 static void eventlog_destroy(GtkWidget *widget, gpointer data)
3752 {
3753     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3754
3755     es->window = NULL;
3756     sfree(es->seldata);
3757     es->seldata = NULL;
3758     dlg_cleanup(&es->dp);
3759     ctrl_free_box(es->eventbox);
3760 }
3761 static void eventlog_ok_handler(union control *ctrl, void *dlg,
3762                                 void *data, int event)
3763 {
3764     if (event == EVENT_ACTION)
3765         dlg_end(dlg, 0);
3766 }
3767 static void eventlog_list_handler(union control *ctrl, void *dlg,
3768                                   void *data, int event)
3769 {
3770     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3771
3772     if (event == EVENT_REFRESH) {
3773         int i;
3774
3775         dlg_update_start(ctrl, dlg);
3776         dlg_listbox_clear(ctrl, dlg);
3777         for (i = 0; i < es->nevents; i++) {
3778             dlg_listbox_add(ctrl, dlg, es->events[i]);
3779         }
3780         dlg_update_done(ctrl, dlg);
3781     } else if (event == EVENT_SELCHANGE) {
3782         int i;
3783         int selsize = 0;
3784
3785         /*
3786          * If this SELCHANGE event is happening as a result of
3787          * deliberate deselection because someone else has grabbed
3788          * the selection, the last thing we want to do is pre-empt
3789          * them.
3790          */
3791         if (es->ignore_selchange)
3792             return;
3793
3794         /*
3795          * Construct the data to use as the selection.
3796          */
3797         sfree(es->seldata);
3798         es->seldata = NULL;
3799         es->sellen = 0;
3800         for (i = 0; i < es->nevents; i++) {
3801             if (dlg_listbox_issel(ctrl, dlg, i)) {
3802                 int extralen = strlen(es->events[i]);
3803
3804                 if (es->sellen + extralen + 2 > selsize) {
3805                     selsize = es->sellen + extralen + 512;
3806                     es->seldata = sresize(es->seldata, selsize, char);
3807                 }
3808
3809                 strcpy(es->seldata + es->sellen, es->events[i]);
3810                 es->sellen += extralen;
3811                 es->seldata[es->sellen++] = '\n';
3812             }
3813         }
3814
3815         if (gtk_selection_owner_set(es->window, GDK_SELECTION_PRIMARY,
3816                                     GDK_CURRENT_TIME)) {
3817             extern GdkAtom compound_text_atom;
3818
3819             gtk_selection_add_target(es->window, GDK_SELECTION_PRIMARY,
3820                                      GDK_SELECTION_TYPE_STRING, 1);
3821             gtk_selection_add_target(es->window, GDK_SELECTION_PRIMARY,
3822                                      compound_text_atom, 1);
3823         }
3824
3825     }
3826 }
3827
3828 void eventlog_selection_get(GtkWidget *widget, GtkSelectionData *seldata,
3829                             guint info, guint time_stamp, gpointer data)
3830 {
3831     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3832
3833     gtk_selection_data_set(seldata, gtk_selection_data_get_target(seldata), 8,
3834                            (unsigned char *)es->seldata, es->sellen);
3835 }
3836
3837 gint eventlog_selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
3838                               gpointer data)
3839 {
3840     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3841     struct uctrl *uc;
3842
3843     /*
3844      * Deselect everything in the list box.
3845      */
3846     uc = dlg_find_byctrl(&es->dp, es->listctrl);
3847     es->ignore_selchange = 1;
3848 #if !GTK_CHECK_VERSION(2,0,0)
3849     assert(uc->list);
3850     gtk_list_unselect_all(GTK_LIST(uc->list));
3851 #else
3852     assert(uc->treeview);
3853     gtk_tree_selection_unselect_all
3854         (gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview)));
3855 #endif
3856     es->ignore_selchange = 0;
3857
3858     sfree(es->seldata);
3859     es->sellen = 0;
3860     es->seldata = NULL;
3861     return TRUE;
3862 }
3863
3864 void showeventlog(void *estuff, void *parentwin)
3865 {
3866     struct eventlog_stuff *es = (struct eventlog_stuff *)estuff;
3867     GtkWidget *window, *w0, *w1;
3868     GtkWidget *parent = GTK_WIDGET(parentwin);
3869     struct controlset *s0, *s1;
3870     union control *c;
3871     int index;
3872     char *title;
3873
3874     if (es->window) {
3875         gtk_widget_grab_focus(es->window);
3876         return;
3877     }
3878
3879     dlg_init(&es->dp);
3880
3881     for (index = 0; index < lenof(es->scs.sc); index++) {
3882         es->scs.sc[index].action = SHORTCUT_EMPTY;
3883     }
3884
3885     es->eventbox = ctrl_new_box();
3886
3887     s0 = ctrl_getset(es->eventbox, "", "", "");
3888     ctrl_columns(s0, 3, 33, 34, 33);
3889     c = ctrl_pushbutton(s0, "Close", 'c', HELPCTX(no_help),
3890                         eventlog_ok_handler, P(NULL));
3891     c->button.column = 1;
3892     c->button.isdefault = TRUE;
3893
3894     s1 = ctrl_getset(es->eventbox, "x", "", "");
3895     es->listctrl = c = ctrl_listbox(s1, NULL, NO_SHORTCUT, HELPCTX(no_help),
3896                                     eventlog_list_handler, P(es));
3897     c->listbox.height = 10;
3898     c->listbox.multisel = 2;
3899     c->listbox.ncols = 3;
3900     c->listbox.percentages = snewn(3, int);
3901     c->listbox.percentages[0] = 25;
3902     c->listbox.percentages[1] = 10;
3903     c->listbox.percentages[2] = 65;
3904
3905     es->window = window = our_dialog_new();
3906     title = dupcat(appname, " Event Log", NULL);
3907     gtk_window_set_title(GTK_WINDOW(window), title);
3908     sfree(title);
3909     w0 = layout_ctrls(&es->dp, &es->scs, s0, GTK_WINDOW(window));
3910     our_dialog_set_action_area(GTK_WINDOW(window), w0);
3911     gtk_widget_show(w0);
3912     w1 = layout_ctrls(&es->dp, &es->scs, s1, GTK_WINDOW(window));
3913     gtk_container_set_border_width(GTK_CONTAINER(w1), 10);
3914     gtk_widget_set_size_request(w1, 20 + string_width
3915                                 ("LINE OF TEXT GIVING WIDTH OF EVENT LOG IS "
3916                                  "QUITE LONG 'COS SSH LOG ENTRIES ARE WIDE"),
3917                                 -1);
3918     our_dialog_add_to_content_area(GTK_WINDOW(window), w1, TRUE, TRUE, 0);
3919     gtk_widget_show(w1);
3920
3921     es->dp.data = es;
3922     es->dp.shortcuts = &es->scs;
3923     es->dp.lastfocus = NULL;
3924     es->dp.retval = 0;
3925     es->dp.window = window;
3926
3927     dlg_refresh(NULL, &es->dp);
3928
3929     if (parent) {
3930         set_transient_window_pos(parent, window);
3931         gtk_window_set_transient_for(GTK_WINDOW(window),
3932                                      GTK_WINDOW(parent));
3933     } else
3934         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
3935     gtk_widget_show(window);
3936
3937     g_signal_connect(G_OBJECT(window), "destroy",
3938                      G_CALLBACK(eventlog_destroy), es);
3939     g_signal_connect(G_OBJECT(window), "key_press_event",
3940                      G_CALLBACK(win_key_press), &es->dp);
3941     g_signal_connect(G_OBJECT(window), "selection_get",
3942                      G_CALLBACK(eventlog_selection_get), es);
3943     g_signal_connect(G_OBJECT(window), "selection_clear_event",
3944                      G_CALLBACK(eventlog_selection_clear), es);
3945 }
3946
3947 void *eventlogstuff_new(void)
3948 {
3949     struct eventlog_stuff *es;
3950     es = snew(struct eventlog_stuff);
3951     memset(es, 0, sizeof(*es));
3952     return es;
3953 }
3954
3955 void logevent_dlg(void *estuff, const char *string)
3956 {
3957     struct eventlog_stuff *es = (struct eventlog_stuff *)estuff;
3958
3959     char timebuf[40];
3960     struct tm tm;
3961
3962     if (es->nevents >= es->negsize) {
3963         es->negsize += 64;
3964         es->events = sresize(es->events, es->negsize, char *);
3965     }
3966
3967     tm=ltime();
3968     strftime(timebuf, sizeof(timebuf), "%Y-%m-%d %H:%M:%S\t", &tm);
3969
3970     es->events[es->nevents] = snewn(strlen(timebuf) + strlen(string) + 1, char);
3971     strcpy(es->events[es->nevents], timebuf);
3972     strcat(es->events[es->nevents], string);
3973     if (es->window) {
3974         dlg_listbox_add(es->listctrl, &es->dp, es->events[es->nevents]);
3975     }
3976     es->nevents++;
3977 }
3978
3979 int askappend(void *frontend, Filename *filename,
3980               void (*callback)(void *ctx, int result), void *ctx)
3981 {
3982     static const char msgtemplate[] =
3983         "The session log file \"%.*s\" already exists. "
3984         "You can overwrite it with a new session log, "
3985         "append your session log to the end of it, "
3986         "or disable session logging for this session.";
3987     char *message;
3988     char *mbtitle;
3989     int mbret;
3990
3991     message = dupprintf(msgtemplate, FILENAME_MAX, filename->path);
3992     mbtitle = dupprintf("%s Log to File", appname);
3993
3994     mbret = messagebox(get_window(frontend), mbtitle, message,
3995                        string_width("LINE OF TEXT SUITABLE FOR THE"
3996                                     " ASKAPPEND WIDTH"),
3997                        FALSE,
3998                        "Overwrite", 'o', 1, 2,
3999                        "Append", 'a', 0, 1,
4000                        "Disable", 'd', -1, 0,
4001                        NULL);
4002
4003     sfree(message);
4004     sfree(mbtitle);
4005
4006     return mbret;
4007 }