unix/gtkdlg.c

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