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