unix/gtkdlg.c

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