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