unix/gtkdlg.c

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