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