unix/gtkdlg.c

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