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