At last, merge the putty-gtk2 branch back into the trunk!
[u/mdw/putty] / unix / gtkdlg.c
index bdfe3e5..53a7025 100644 (file)
@@ -2,15 +2,6 @@
  * gtkdlg.c - GTK implementation of the PuTTY configuration box.
  */
 
-/*
- * TODO when porting to GTK 2.0:
- * 
- *  - GtkTree is apparently deprecated and we should switch to
- *    GtkTreeView instead.
- *  - GtkLabel has a built-in mnemonic scheme, so we should at
- *    least consider switching to that from the current adhockery.
- */
-
 #include <assert.h>
 #include <stdarg.h>
 #include <ctype.h>
@@ -22,6 +13,7 @@
 #include <X11/Xutil.h>
 
 #include "gtkcols.h"
+#include "gtkfont.h"
 
 #ifdef TESTMODE
 #define PUTTY_DO_GLOBALS              /* actually _define_ globals */
@@ -48,14 +40,23 @@ struct uctrl {
     void *privdata;
     int privdata_needs_free;
     GtkWidget **buttons; int nbuttons; /* for radio buttons */
-    GtkWidget *entry;         /* for editbox, combobox, filesel, fontsel */
+    GtkWidget *entry;         /* for editbox, filesel, fontsel */
     GtkWidget *button;        /* for filesel, fontsel */
-    GtkWidget *list;         /* for combobox, listbox */
+#if !GTK_CHECK_VERSION(2,4,0)
+    GtkWidget *list;         /* for listbox (in GTK1), combobox (<=GTK2.3) */
     GtkWidget *menu;         /* for optionmenu (==droplist) */
     GtkWidget *optmenu;              /* also for optionmenu */
+#else
+    GtkWidget *combo;         /* for combo box (either editable or not) */
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    GtkWidget *treeview;      /* for listbox (GTK2), droplist+combo (>=2.4) */
+    GtkListStore *listmodel;  /* for all types of list box */
+#endif
     GtkWidget *text;         /* for text */
     GtkWidget *label;         /* for dlg_label_change */
     GtkAdjustment *adj;       /* for the scrollbar in a list box */
+    guint entrysig;
     guint textsig;
     int nclicks;
 };
@@ -68,12 +69,16 @@ struct dlgparam {
      * due to automatic processing and should not flag a user event. */
     int flags;
     struct Shortcuts *shortcuts;
-    GtkWidget *window, *cancelbutton, *currtreeitem, **treeitems;
+    GtkWidget *window, *cancelbutton;
     union control *currfocus, *lastfocus;
+#if !GTK_CHECK_VERSION(2,0,0)
+    GtkWidget *currtreeitem, **treeitems;
     int ntreeitems;
+#endif
     int retval;
 };
 #define FLAG_UPDATING_COMBO_LIST 1
+#define FLAG_UPDATING_LISTBOX    2
 
 enum {                                /* values for Shortcut.action */
     SHORTCUT_EMPTY,                   /* no shortcut on this key */
@@ -84,6 +89,14 @@ enum {                                      /* values for Shortcut.action */
     SHORTCUT_UCTRL_DOWN,              /* uctrl is a draglist, move Down */
 };
 
+#if GTK_CHECK_VERSION(2,0,0)
+enum {
+    TREESTORE_PATH,
+    TREESTORE_PARAMS,
+    TREESTORE_NUM
+};
+#endif
+
 /*
  * Forward references.
  */
@@ -92,18 +105,23 @@ static gboolean widget_focus(GtkWidget *widget, GdkEventFocus *event,
 static void shortcut_add(struct Shortcuts *scs, GtkWidget *labelw,
                         int chr, int action, void *ptr);
 static void shortcut_highlight(GtkWidget *label, int chr);
-static int listitem_single_key(GtkWidget *item, GdkEventKey *event,
-                               gpointer data);
-static int listitem_multi_key(GtkWidget *item, GdkEventKey *event,
-                                 gpointer data);
-static int listitem_button_press(GtkWidget *item, GdkEventButton *event,
-                                gpointer data);
-static int listitem_button_release(GtkWidget *item, GdkEventButton *event,
-                                  gpointer data);
+#if !GTK_CHECK_VERSION(2,0,0)
+static gboolean listitem_single_key(GtkWidget *item, GdkEventKey *event,
+                                   gpointer data);
+static gboolean listitem_multi_key(GtkWidget *item, GdkEventKey *event,
+                                  gpointer data);
+static gboolean listitem_button_press(GtkWidget *item, GdkEventButton *event,
+                                     gpointer data);
+static gboolean listitem_button_release(GtkWidget *item, GdkEventButton *event,
+                                       gpointer data);
+#endif
+#if !GTK_CHECK_VERSION(2,4,0)
 static void menuitem_activate(GtkMenuItem *item, gpointer data);
+#endif
 static void coloursel_ok(GtkButton *button, gpointer data);
 static void coloursel_cancel(GtkButton *button, gpointer data);
 static void window_destroy(GtkWidget *widget, gpointer data);
+int get_listitemheight(GtkWidget *widget);
 
 static int uctrl_cmp_byctrl(void *av, void *bv)
 {
@@ -154,8 +172,11 @@ static void dlg_init(struct dlgparam *dp)
     dp->byctrl = newtree234(uctrl_cmp_byctrl);
     dp->bywidget = newtree234(uctrl_cmp_bywidget);
     dp->coloursel_result.ok = FALSE;
+    dp->window = dp->cancelbutton = NULL;
+#if !GTK_CHECK_VERSION(2,0,0)
     dp->treeitems = NULL;
-    dp->window = dp->cancelbutton = dp->currtreeitem = NULL;
+    dp->currtreeitem = NULL;
+#endif
     dp->flags = 0;
     dp->currfocus = NULL;
 }
@@ -175,7 +196,9 @@ static void dlg_cleanup(struct dlgparam *dp)
     }
     freetree234(dp->bywidget);
     dp->bywidget = NULL;
+#if !GTK_CHECK_VERSION(2,0,0)
     sfree(dp->treeitems);
+#endif
 }
 
 static void dlg_add_uctrl(struct dlgparam *dp, struct uctrl *uc)
@@ -285,9 +308,40 @@ void dlg_editbox_set(union control *ctrl, void *dlg, char const *text)
 {
     struct dlgparam *dp = (struct dlgparam *)dlg;
     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
+    GtkWidget *entry;
+    char *tmpstring;
     assert(uc->ctrl->generic.type == CTRL_EDITBOX);
-    assert(uc->entry != NULL);
-    gtk_entry_set_text(GTK_ENTRY(uc->entry), text);
+
+#if GTK_CHECK_VERSION(2,4,0)
+    if (uc->combo)
+       entry = gtk_bin_get_child(GTK_BIN(uc->combo));
+    else
+#endif
+    entry = uc->entry;
+
+    assert(entry != NULL);
+
+    /*
+     * GTK 2 implements gtk_entry_set_text by means of two separate
+     * operations: first delete the previous text leaving the empty
+     * string, then insert the new text. This causes two calls to
+     * the "changed" signal.
+     *
+     * The first call to "changed", if allowed to proceed normally,
+     * will cause an EVENT_VALCHANGE event on the edit box, causing
+     * a call to dlg_editbox_get() which will read the empty string
+     * out of the GtkEntry - and promptly write it straight into
+     * the Config structure, which is precisely where our `text'
+     * pointer is probably pointing, so the second editing
+     * operation will insert that instead of the string we
+     * originally asked for.
+     *
+     * Hence, we must take our own copy of the text before we do
+     * this.
+     */
+    tmpstring = dupstr(text);
+    gtk_entry_set_text(GTK_ENTRY(entry), tmpstring);
+    sfree(tmpstring);
 }
 
 void dlg_editbox_get(union control *ctrl, void *dlg, char *buffer, int length)
@@ -295,18 +349,42 @@ void dlg_editbox_get(union control *ctrl, void *dlg, char *buffer, int length)
     struct dlgparam *dp = (struct dlgparam *)dlg;
     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
     assert(uc->ctrl->generic.type == CTRL_EDITBOX);
-    assert(uc->entry != NULL);
-    strncpy(buffer, gtk_entry_get_text(GTK_ENTRY(uc->entry)),
-           length);
-    buffer[length-1] = '\0';
+
+#if GTK_CHECK_VERSION(2,4,0)
+    if (uc->combo) {
+#if GTK_CHECK_VERSION(2,6,0)
+       strncpy(buffer,
+               gtk_combo_box_get_active_text(GTK_COMBO_BOX(uc->combo)),
+               length);
+#else
+       strncpy(buffer,
+               gtk_entry_get_text
+               (GTK_ENTRY(gtk_bin_get_child(GTK_BIN(uc->combo)))),
+               length);
+#endif
+       buffer[length-1] = '\0';
+       return;
+    }
+#endif
+
+    if (uc->entry) {
+       strncpy(buffer, gtk_entry_get_text(GTK_ENTRY(uc->entry)),
+               length);
+       buffer[length-1] = '\0';
+       return;
+    }
+
+    assert(!"We shouldn't get here");
 }
 
+#if !GTK_CHECK_VERSION(2,4,0)
 static void container_remove_and_destroy(GtkWidget *w, gpointer data)
 {
     GtkContainer *cont = GTK_CONTAINER(data);
     /* gtk_container_remove will unref the widget for us; we need not. */
     gtk_container_remove(cont, w);
 }
+#endif
 
 /* The `listbox' functions can also apply to combo boxes. */
 void dlg_listbox_clear(union control *ctrl, void *dlg)
@@ -316,15 +394,26 @@ void dlg_listbox_clear(union control *ctrl, void *dlg)
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->menu != NULL || uc->list != NULL);
 
+#if !GTK_CHECK_VERSION(2,4,0)
     if (uc->menu) {
        gtk_container_foreach(GTK_CONTAINER(uc->menu),
                              container_remove_and_destroy,
                              GTK_CONTAINER(uc->menu));
-    } else {
+       return;
+    }
+    if (uc->list) {
        gtk_list_clear_items(GTK_LIST(uc->list), 0, -1);
+       return;
+    }
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    if (uc->listmodel) {
+       gtk_list_store_clear(uc->listmodel);
+       return;
     }
+#endif
+    assert(!"We shouldn't get here");
 }
 
 void dlg_listbox_del(union control *ctrl, void *dlg, int index)
@@ -334,15 +423,32 @@ void dlg_listbox_del(union control *ctrl, void *dlg, int index)
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->menu != NULL || uc->list != NULL);
 
+#if !GTK_CHECK_VERSION(2,4,0)
     if (uc->menu) {
        gtk_container_remove
            (GTK_CONTAINER(uc->menu),
             g_list_nth_data(GTK_MENU_SHELL(uc->menu)->children, index));
-    } else {
+       return;
+    }
+    if (uc->list) {
        gtk_list_clear_items(GTK_LIST(uc->list), index, index+1);
+       return;
     }
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    if (uc->listmodel) {
+       GtkTreePath *path;
+       GtkTreeIter iter;
+       assert(uc->listmodel != NULL);
+       path = gtk_tree_path_new_from_indices(index, -1);
+       gtk_tree_model_get_iter(GTK_TREE_MODEL(uc->listmodel), &iter, path);
+       gtk_list_store_remove(uc->listmodel, &iter);
+       gtk_tree_path_free(path);
+       return;
+    }
+#endif
+    assert(!"We shouldn't get here");
 }
 
 void dlg_listbox_add(union control *ctrl, void *dlg, char const *text)
@@ -365,10 +471,14 @@ void dlg_listbox_addwithid(union control *ctrl, void *dlg,
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->menu != NULL || uc->list != NULL);
 
+    /*
+     * This routine is long and complicated in both GTK 1 and 2,
+     * and completely different. Sigh.
+     */
     dp->flags |= FLAG_UPDATING_COMBO_LIST;
 
+#if !GTK_CHECK_VERSION(2,4,0)
     if (uc->menu) {
        /*
         * List item in a drop-down (but non-combo) list. Tabs are
@@ -384,7 +494,26 @@ void dlg_listbox_addwithid(union control *ctrl, void *dlg,
                            GINT_TO_POINTER(id));
        gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
                           GTK_SIGNAL_FUNC(menuitem_activate), dp);
-    } else if (!uc->entry) {
+       goto done;
+    }
+    if (uc->list && uc->entry) {
+       /*
+        * List item in a combo-box list, which means the sensible
+        * thing to do is make it a perfectly normal label. Hence
+        * tabs are disregarded.
+        */
+       GtkWidget *listitem = gtk_list_item_new_with_label(text);
+
+       gtk_container_add(GTK_CONTAINER(uc->list), listitem);
+       gtk_widget_show(listitem);
+
+       gtk_object_set_data(GTK_OBJECT(listitem), "user-data",
+                           GINT_TO_POINTER(id));
+       goto done;
+    }
+#endif
+#if !GTK_CHECK_VERSION(2,0,0)
+    if (uc->list) {
        /*
         * List item in a non-combo-box list box. We make all of
         * these Columns containing GtkLabels. This allows us to do
@@ -447,21 +576,39 @@ void dlg_listbox_addwithid(union control *ctrl, void *dlg,
                           GTK_SIGNAL_FUNC(listitem_button_release), dp);
        gtk_object_set_data(GTK_OBJECT(listitem), "user-data",
                            GINT_TO_POINTER(id));
-    } else {
-       /*
-        * List item in a combo-box list, which means the sensible
-        * thing to do is make it a perfectly normal label. Hence
-        * tabs are disregarded.
-        */
-       GtkWidget *listitem = gtk_list_item_new_with_label(text);
+       goto done;
+    }
+#else
+    if (uc->listmodel) {
+       GtkTreeIter iter;
+       int i, cols;
 
-       gtk_container_add(GTK_CONTAINER(uc->list), listitem);
-       gtk_widget_show(listitem);
+       dp->flags |= FLAG_UPDATING_LISTBOX;/* inhibit drag-list update */
+       gtk_list_store_append(uc->listmodel, &iter);
+       dp->flags &= ~FLAG_UPDATING_LISTBOX;
+       gtk_list_store_set(uc->listmodel, &iter, 0, id, -1);
 
-       gtk_object_set_data(GTK_OBJECT(listitem), "user-data",
-                           GINT_TO_POINTER(id));
+       /*
+        * Now go through text and divide it into columns at the tabs,
+        * as necessary.
+        */
+       cols = (uc->ctrl->generic.type == CTRL_LISTBOX ? ctrl->listbox.ncols : 1);
+       cols = cols ? cols : 1;
+       for (i = 0; i < cols; i++) {
+           int collen = strcspn(text, "\t");
+           char *tmpstr = snewn(collen+1, char);
+           memcpy(tmpstr, text, collen);
+           tmpstr[collen] = '\0';
+           gtk_list_store_set(uc->listmodel, &iter, i+1, tmpstr, -1);
+           sfree(tmpstr);
+           text += collen;
+           if (*text) text++;
+       }
+       goto done;
     }
-
+#endif
+    assert(!"We shouldn't get here");
+    done:
     dp->flags &= ~FLAG_UPDATING_COMBO_LIST;
 }
 
@@ -469,19 +616,40 @@ int dlg_listbox_getid(union control *ctrl, void *dlg, int index)
 {
     struct dlgparam *dp = (struct dlgparam *)dlg;
     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
-    GList *children;
-    GtkObject *item;
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->menu != NULL || uc->list != NULL);
 
-    children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
-                                                   uc->list));
-    item = GTK_OBJECT(g_list_nth_data(children, index));
-    g_list_free(children);
+#if !GTK_CHECK_VERSION(2,4,0)
+    if (uc->menu || uc->list) {
+       GList *children;
+       GtkObject *item;
 
-    return GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item), "user-data"));
+       children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
+                                                       uc->list));
+       item = GTK_OBJECT(g_list_nth_data(children, index));
+       g_list_free(children);
+
+       return GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
+                                                  "user-data"));
+    }
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    if (uc->listmodel) {
+       GtkTreePath *path;
+       GtkTreeIter iter;
+       int ret;
+
+       path = gtk_tree_path_new_from_indices(index, -1);
+       gtk_tree_model_get_iter(GTK_TREE_MODEL(uc->listmodel), &iter, path);
+       gtk_tree_model_get(GTK_TREE_MODEL(uc->listmodel), &iter, 0, &ret, -1);
+       gtk_tree_path_free(path);
+
+       return ret;
+    }
+#endif
+    assert(!"We shouldn't get here");
+    return -1;                        /* placate dataflow analysis */
 }
 
 /* dlg_listbox_index returns <0 if no single element is selected. */
@@ -489,58 +657,142 @@ int dlg_listbox_index(union control *ctrl, void *dlg)
 {
     struct dlgparam *dp = (struct dlgparam *)dlg;
     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
-    GList *children;
-    GtkWidget *item, *activeitem;
-    int i;
-    int selected = -1;
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->menu != NULL || uc->list != NULL);
 
-    if (uc->menu)
-       activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
-    else
-       activeitem = NULL;             /* unnecessarily placate gcc */
-
-    children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
-                                                   uc->list));
-    for (i = 0; children!=NULL && (item = GTK_WIDGET(children->data))!=NULL;
-        i++, children = children->next) {
-       if (uc->menu ? activeitem == item :
-           GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED) {
-           if (selected == -1)
-               selected = i;
-           else
-               selected = -2;
+#if !GTK_CHECK_VERSION(2,4,0)
+    if (uc->menu || uc->list) {
+       GList *children;
+       GtkWidget *item, *activeitem;
+       int i;
+       int selected = -1;
+
+       if (uc->menu)
+           activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
+       else
+           activeitem = NULL;         /* unnecessarily placate gcc */
+
+       children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
+                                                       uc->list));
+       for (i = 0; children!=NULL && (item = GTK_WIDGET(children->data))!=NULL;
+            i++, children = children->next) {
+           if (uc->menu ? activeitem == item :
+               GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED) {
+               if (selected == -1)
+                   selected = i;
+               else
+                   selected = -2;
+           }
        }
+       g_list_free(children);
+       return selected < 0 ? -1 : selected;
     }
-    g_list_free(children);
-    return selected < 0 ? -1 : selected;
+#else
+    if (uc->combo) {
+       /*
+        * This API function already does the right thing in the
+        * case of no current selection.
+        */
+       return gtk_combo_box_get_active(GTK_COMBO_BOX(uc->combo));
+    }
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    if (uc->treeview) {
+       GtkTreeSelection *treesel;
+       GtkTreePath *path;
+       GList *sellist;
+       gint *indices;
+       int ret;
+
+       assert(uc->treeview != NULL);
+       treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
+
+       if (gtk_tree_selection_count_selected_rows(treesel) != 1)
+           return -1;
+
+       sellist = gtk_tree_selection_get_selected_rows(treesel, NULL);
+
+       assert(sellist && sellist->data);
+       path = sellist->data;
+
+       if (gtk_tree_path_get_depth(path) != 1) {
+           ret = -1;
+       } else {
+           indices = gtk_tree_path_get_indices(path);
+           if (!indices) {
+               ret = -1;
+           } else {
+               ret = indices[0];
+           }
+       }
+
+       g_list_foreach(sellist, (GFunc)gtk_tree_path_free, NULL);
+       g_list_free(sellist);
+
+       return ret;
+    }
+#endif
+    assert(!"We shouldn't get here");
+    return -1;                        /* placate dataflow analysis */
 }
 
 int dlg_listbox_issel(union control *ctrl, void *dlg, int index)
 {
     struct dlgparam *dp = (struct dlgparam *)dlg;
     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
-    GList *children;
-    GtkWidget *item, *activeitem;
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->menu != NULL || uc->list != NULL);
 
-    children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
-                                                   uc->list));
-    item = GTK_WIDGET(g_list_nth_data(children, index));
-    g_list_free(children);
+#if !GTK_CHECK_VERSION(2,4,0)
+    if (uc->menu || uc->list) {
+       GList *children;
+       GtkWidget *item, *activeitem;
 
-    if (uc->menu) {
-       activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
-       return item == activeitem;
-    } else {
-       return GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED;
+       assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
+              uc->ctrl->generic.type == CTRL_LISTBOX);
+       assert(uc->menu != NULL || uc->list != NULL);
+
+       children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
+                                                       uc->list));
+       item = GTK_WIDGET(g_list_nth_data(children, index));
+       g_list_free(children);
+
+       if (uc->menu) {
+           activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
+           return item == activeitem;
+       } else {
+           return GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED;
+       }
+    }
+#else
+    if (uc->combo) {
+       /*
+        * This API function already does the right thing in the
+        * case of no current selection.
+        */
+       return gtk_combo_box_get_active(GTK_COMBO_BOX(uc->combo)) == index;
+    }
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    if (uc->treeview) {
+       GtkTreeSelection *treesel;
+       GtkTreePath *path;
+       int ret;
+
+       assert(uc->treeview != NULL);
+       treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
+
+       path = gtk_tree_path_new_from_indices(index, -1);
+       ret = gtk_tree_selection_path_is_selected(treesel, path);
+       gtk_tree_path_free(path);
+
+       return ret;
     }
+#endif
+    assert(!"We shouldn't get here");
+    return -1;                        /* placate dataflow analysis */
 }
 
 void dlg_listbox_select(union control *ctrl, void *dlg, int index)
@@ -550,11 +802,13 @@ void dlg_listbox_select(union control *ctrl, void *dlg, int index)
 
     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
           uc->ctrl->generic.type == CTRL_LISTBOX);
-    assert(uc->optmenu != NULL || uc->list != NULL);
 
+#if !GTK_CHECK_VERSION(2,4,0)
     if (uc->optmenu) {
        gtk_option_menu_set_history(GTK_OPTION_MENU(uc->optmenu), index);
-    } else {
+       return;
+    } 
+    if (uc->list) {
         int nitems;
         GList *items;
         gdouble newtop, newbot;
@@ -584,7 +838,30 @@ void dlg_listbox_select(union control *ctrl, void *dlg, int index)
             if (modified)
                 gtk_adjustment_value_changed(uc->adj);
         }
+       return;
+    }
+#else
+    if (uc->combo) {
+       gtk_combo_box_set_active(GTK_COMBO_BOX(uc->combo), index);
+       return;
     }
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+    if (uc->treeview) {
+       GtkTreeSelection *treesel;
+       GtkTreePath *path;
+
+       treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
+
+       path = gtk_tree_path_new_from_indices(index, -1);
+       gtk_tree_selection_select_path(treesel, path);
+       gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(uc->treeview),
+                                    path, NULL, FALSE, 0.0, 0.0);
+       gtk_tree_path_free(path);
+       return;
+    }
+#endif
+    assert(!"We shouldn't get here");
 }
 
 void dlg_text_set(union control *ctrl, void *dlg, char const *text)
@@ -713,8 +990,16 @@ void dlg_set_focus(union control *ctrl, void *dlg)
       case CTRL_FILESELECT:
       case CTRL_FONTSELECT:
       case CTRL_EDITBOX:
-        /* Anything containing an edit box gets that focused. */
-        gtk_widget_grab_focus(uc->entry);
+       if (uc->entry) {
+           /* Anything containing an edit box gets that focused. */
+           gtk_widget_grab_focus(uc->entry);
+       }
+#if GTK_CHECK_VERSION(2,4,0)
+       else if (uc->combo) {
+           /* Failing that, there'll be a combo box. */
+           gtk_widget_grab_focus(uc->combo);
+       }
+#endif
         break;
       case CTRL_RADIO:
         /*
@@ -731,17 +1016,34 @@ void dlg_set_focus(union control *ctrl, void *dlg)
         }
         break;
       case CTRL_LISTBOX:
-        /*
-         * If the list is really an option menu, we focus it.
-         * Otherwise we tell it to focus one of its children, which
-         * appears to do the Right Thing.
-         */
+#if !GTK_CHECK_VERSION(2,4,0)
         if (uc->optmenu) {
             gtk_widget_grab_focus(uc->optmenu);
-        } else {
-            assert(uc->list != NULL);
-            gtk_container_focus(GTK_CONTAINER(uc->list), GTK_DIR_TAB_FORWARD);
+           break;
         }
+#else
+       if (uc->combo) {
+           gtk_widget_grab_focus(uc->combo);
+           break;
+       }
+#endif
+#if !GTK_CHECK_VERSION(2,0,0)
+       if (uc->list) {
+           /*
+            * For GTK-1 style list boxes, we tell it to focus one
+            * of its children, which appears to do the Right
+            * Thing.
+            */
+            gtk_container_focus(GTK_CONTAINER(uc->list), GTK_DIR_TAB_FORWARD);
+           break;
+       }
+#else
+       if (uc->treeview) {
+           gtk_widget_grab_focus(uc->treeview);
+           break;
+       }
+#endif
+       assert(!"We shouldn't get here");
         break;
     }
 }
@@ -868,7 +1170,11 @@ void dlg_coloursel_start(union control *ctrl, void *dlg, int r, int g, int b)
     dp->coloursel_result.ok = FALSE;
 
     gtk_window_set_modal(GTK_WINDOW(coloursel), TRUE);
+#if GTK_CHECK_VERSION(2,0,0)
+    gtk_color_selection_set_has_opacity_control(GTK_COLOR_SELECTION(ccs->colorsel), FALSE);
+#else
     gtk_color_selection_set_opacity(GTK_COLOR_SELECTION(ccs->colorsel), FALSE);
+#endif
     cvals[0] = r / 255.0;
     cvals[1] = g / 255.0;
     cvals[2] = b / 255.0;
@@ -944,7 +1250,8 @@ static void button_toggled(GtkToggleButton *tb, gpointer data)
     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
 }
 
-static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
+static gboolean editbox_key(GtkWidget *widget, GdkEventKey *event,
+                           gpointer data)
 {
     /*
      * GtkEntry has a nasty habit of eating the Return key, which
@@ -956,7 +1263,7 @@ static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
      * in the dialog just like it will everywhere else.
      */
     if (event->keyval == GDK_Return && widget->parent != NULL) {
-       gint return_val;
+       gboolean return_val;
        gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
        gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
                                event, &return_val);
@@ -974,16 +1281,23 @@ static void editbox_changed(GtkEditable *ed, gpointer data)
     }
 }
 
-static void editbox_lostfocus(GtkWidget *ed, GdkEventFocus *event,
-                             gpointer data)
+static gboolean editbox_lostfocus(GtkWidget *ed, GdkEventFocus *event,
+                                 gpointer data)
 {
     struct dlgparam *dp = (struct dlgparam *)data;
     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(ed));
     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_REFRESH);
+    return FALSE;
 }
 
-static int listitem_key(GtkWidget *item, GdkEventKey *event, gpointer data,
-                        int multiple)
+#if !GTK_CHECK_VERSION(2,0,0)
+
+/*
+ * GTK 1 list box event handlers.
+ */
+
+static gboolean listitem_key(GtkWidget *item, GdkEventKey *event,
+                            gpointer data, int multiple)
 {
     GtkAdjustment *adj = GTK_ADJUSTMENT(data);
 
@@ -1076,20 +1390,20 @@ static int listitem_key(GtkWidget *item, GdkEventKey *event, gpointer data,
     return FALSE;
 }
 
-static int listitem_single_key(GtkWidget *item, GdkEventKey *event,
-                               gpointer data)
+static gboolean listitem_single_key(GtkWidget *item, GdkEventKey *event,
+                                   gpointer data)
 {
     return listitem_key(item, event, data, FALSE);
 }
 
-static int listitem_multi_key(GtkWidget *item, GdkEventKey *event,
-                                 gpointer data)
+static gboolean listitem_multi_key(GtkWidget *item, GdkEventKey *event,
+                                  gpointer data)
 {
     return listitem_key(item, event, data, TRUE);
 }
 
-static int listitem_button_press(GtkWidget *item, GdkEventButton *event,
-                                gpointer data)
+static gboolean listitem_button_press(GtkWidget *item, GdkEventButton *event,
+                                     gpointer data)
 {
     struct dlgparam *dp = (struct dlgparam *)data;
     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(item));
@@ -1102,8 +1416,8 @@ static int listitem_button_press(GtkWidget *item, GdkEventButton *event,
     return FALSE;
 }
 
-static int listitem_button_release(GtkWidget *item, GdkEventButton *event,
-                                   gpointer data)
+static gboolean listitem_button_release(GtkWidget *item, GdkEventButton *event,
+                                       gpointer data)
 {
     struct dlgparam *dp = (struct dlgparam *)data;
     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(item));
@@ -1122,15 +1436,6 @@ static void list_selchange(GtkList *list, gpointer data)
     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
 }
 
-static void menuitem_activate(GtkMenuItem *item, gpointer data)
-{
-    struct dlgparam *dp = (struct dlgparam *)data;
-    GtkWidget *menushell = GTK_WIDGET(item)->parent;
-    gpointer optmenu = gtk_object_get_data(GTK_OBJECT(menushell), "user-data");
-    struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(optmenu));
-    uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
-}
-
 static void draglist_move(struct dlgparam *dp, struct uctrl *uc, int direction)
 {
     int index = dlg_listbox_index(uc->ctrl, dp);
@@ -1170,23 +1475,144 @@ static void draglist_down(GtkButton *button, gpointer data)
     draglist_move(dp, uc, +1);
 }
 
+#else /* !GTK_CHECK_VERSION(2,0,0) */
+
+/*
+ * GTK 2 list box event handlers.
+ */
+
+static void listbox_doubleclick(GtkTreeView *treeview, GtkTreePath *path,
+                               GtkTreeViewColumn *column, gpointer data)
+{
+    struct dlgparam *dp = (struct dlgparam *)data;
+    struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(treeview));
+    if (uc)
+       uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
+}
+
+static void listbox_selchange(GtkTreeSelection *treeselection,
+                             gpointer data)
+{
+    struct dlgparam *dp = (struct dlgparam *)data;
+    GtkTreeView *tree = gtk_tree_selection_get_tree_view(treeselection);
+    struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(tree));
+    if (uc)
+       uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
+}
+
+struct draglist_valchange_ctx {
+    struct uctrl *uc;
+    struct dlgparam *dp;
+};
+
+static gboolean draglist_valchange(gpointer data)
+{
+    struct draglist_valchange_ctx *ctx =
+       (struct draglist_valchange_ctx *)data;
+
+    ctx->uc->ctrl->generic.handler(ctx->uc->ctrl, ctx->dp,
+                                  ctx->dp->data, EVENT_VALCHANGE);
+
+    sfree(ctx);
+
+    return FALSE;
+}
+
+static void listbox_reorder(GtkTreeModel *treemodel, GtkTreePath *path,
+                           GtkTreeIter *iter, gpointer data)
+{
+    struct dlgparam *dp = (struct dlgparam *)data;
+    gpointer tree;
+    struct uctrl *uc;
+
+    if (dp->flags & FLAG_UPDATING_LISTBOX)
+       return;                        /* not a user drag operation */
+
+    tree = g_object_get_data(G_OBJECT(treemodel), "user-data");
+    uc = dlg_find_bywidget(dp, GTK_WIDGET(tree));
+    if (uc) {
+       /*
+        * We should cause EVENT_VALCHANGE on the list box, now
+        * that its rows have been reordered. However, the GTK 2
+        * docs say that at the point this signal is received the
+        * new row might not have actually been filled in yet.
+        *
+        * (So what smegging use is it then, eh? Don't suppose it
+        * occurred to you at any point that letting the
+        * application know _after_ the reordering was compelete
+        * might be helpful to someone?)
+        *
+        * To get round this, I schedule an idle function, which I
+        * hope won't be called until the main event loop is
+        * re-entered after the drag-and-drop handler has finished
+        * furtling with the list store.
+        */
+       struct draglist_valchange_ctx *ctx =
+           snew(struct draglist_valchange_ctx);
+       ctx->uc = uc;
+       ctx->dp = dp;
+       g_idle_add(draglist_valchange, ctx);
+    }
+}
+
+#endif /* !GTK_CHECK_VERSION(2,0,0) */
+
+#if !GTK_CHECK_VERSION(2,4,0)
+
+static void menuitem_activate(GtkMenuItem *item, gpointer data)
+{
+    struct dlgparam *dp = (struct dlgparam *)data;
+    GtkWidget *menushell = GTK_WIDGET(item)->parent;
+    gpointer optmenu = gtk_object_get_data(GTK_OBJECT(menushell), "user-data");
+    struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(optmenu));
+    uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
+}
+
+#else
+
+static void droplist_selchange(GtkComboBox *combo, gpointer data)
+{
+    struct dlgparam *dp = (struct dlgparam *)data;
+    struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(combo));
+    if (uc)
+       uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
+}
+
+#endif /* !GTK_CHECK_VERSION(2,4,0) */
+
 static void filesel_ok(GtkButton *button, gpointer data)
 {
     /* struct dlgparam *dp = (struct dlgparam *)data; */
     gpointer filesel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
     struct uctrl *uc = gtk_object_get_data(GTK_OBJECT(filesel), "user-data");
-    char *name = gtk_file_selection_get_filename(GTK_FILE_SELECTION(filesel));
+    const char *name = gtk_file_selection_get_filename
+       (GTK_FILE_SELECTION(filesel));
     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
 }
 
 static void fontsel_ok(GtkButton *button, gpointer data)
 {
     /* struct dlgparam *dp = (struct dlgparam *)data; */
+
+#if !GTK_CHECK_VERSION(2,0,0)
+
     gpointer fontsel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
     struct uctrl *uc = gtk_object_get_data(GTK_OBJECT(fontsel), "user-data");
-    char *name = gtk_font_selection_dialog_get_font_name
+    const char *name = gtk_font_selection_dialog_get_font_name
        (GTK_FONT_SELECTION_DIALOG(fontsel));
     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
+
+#else
+
+    unifontsel *fontsel = (unifontsel *)gtk_object_get_data
+       (GTK_OBJECT(button), "user-data");
+    struct uctrl *uc = (struct uctrl *)fontsel->user_data;
+    char *name = unifontsel_get_name(fontsel);
+    assert(name);              /* should always be ok after OK pressed */
+    gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
+    sfree(name);
+
+#endif
 }
 
 static void coloursel_ok(GtkButton *button, gpointer data)
@@ -1240,8 +1666,15 @@ static void filefont_clicked(GtkButton *button, gpointer data)
     }
 
     if (uc->ctrl->generic.type == CTRL_FONTSELECT) {
+        const gchar *fontname = gtk_entry_get_text(GTK_ENTRY(uc->entry));
+
+#if !GTK_CHECK_VERSION(2,0,0)
+
+       /*
+        * Use the GTK 1 standard font selector.
+        */
+
        gchar *spacings[] = { "c", "m", NULL };
-        gchar *fontname = gtk_entry_get_text(GTK_ENTRY(uc->entry));
        GtkWidget *fontsel =
            gtk_font_selection_dialog_new("Select a font");
        gtk_window_set_modal(GTK_WINDOW(fontsel), TRUE);
@@ -1263,6 +1696,7 @@ static void filefont_clicked(GtkButton *button, gpointer data)
                 Display *disp = GDK_FONT_XDISPLAY(font);
                 Atom fontprop = XInternAtom(disp, "FONT", False);
                 unsigned long ret;
+               gdk_font_ref(font);
                 if (XGetFontProperty(xfs, fontprop, &ret)) {
                     char *name = XGetAtomName(disp, (Atom)ret);
                     if (name)
@@ -1288,6 +1722,34 @@ static void filefont_clicked(GtkButton *button, gpointer data)
             "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy),
             (gpointer)fontsel);
        gtk_widget_show(fontsel);
+
+#else /* !GTK_CHECK_VERSION(2,0,0) */
+
+       /*
+        * Use the unifontsel code provided in gtkfont.c.
+        */
+
+       unifontsel *fontsel = unifontsel_new("Select a font");
+
+       gtk_window_set_modal(fontsel->window, TRUE);
+       unifontsel_set_name(fontsel, fontname);
+       
+       gtk_object_set_data(GTK_OBJECT(fontsel->ok_button),
+                           "user-data", (gpointer)fontsel);
+       fontsel->user_data = uc;
+       gtk_signal_connect(GTK_OBJECT(fontsel->ok_button), "clicked",
+                          GTK_SIGNAL_FUNC(fontsel_ok), (gpointer)dp);
+       gtk_signal_connect_object(GTK_OBJECT(fontsel->ok_button), "clicked",
+                                 GTK_SIGNAL_FUNC(unifontsel_destroy),
+                                 (gpointer)fontsel);
+       gtk_signal_connect_object(GTK_OBJECT(fontsel->cancel_button),"clicked",
+                                 GTK_SIGNAL_FUNC(unifontsel_destroy),
+                                 (gpointer)fontsel);
+
+       gtk_widget_show(GTK_WIDGET(fontsel->window));
+
+#endif /* !GTK_CHECK_VERSION(2,0,0) */
+
     }
 }
 
@@ -1311,16 +1773,12 @@ static void label_sizealloc(GtkWidget *widget, GtkAllocation *alloc,
  * definitely a GtkWidget and should probably be added to a
  * GtkVbox.)
  * 
- * `listitemheight' is used to calculate a usize for list boxes: it
- * should be the height from the size request of a GtkListItem.
- * 
  * `win' is required for setting the default button. If it is
  * non-NULL, all buttons created will be default-capable (so they
  * have extra space round them for the default highlight).
  */
 GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
-                       struct controlset *s, int listitemheight,
-                       GtkWindow *win)
+                       struct controlset *s, GtkWindow *win)
 {
     Columns *cols;
     GtkWidget *ret;
@@ -1382,8 +1840,17 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
        uc->privdata = NULL;
        uc->privdata_needs_free = FALSE;
        uc->buttons = NULL;
-       uc->entry = uc->list = uc->menu = NULL;
-       uc->button = uc->optmenu = uc->text = NULL;
+       uc->entry = NULL;
+#if !GTK_CHECK_VERSION(2,4,0)
+       uc->list = uc->menu = uc->optmenu = NULL;
+#else
+       uc->combo = NULL;
+#endif
+#if GTK_CHECK_VERSION(2,0,0)
+       uc->treeview = NULL;
+       uc->listmodel = NULL;
+#endif
+       uc->button = uc->text = NULL;
        uc->label = NULL;
         uc->nclicks = 0;
 
@@ -1476,24 +1943,49 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
           case CTRL_EDITBOX:
            {
                 GtkRequisition req;
+               GtkWidget *signalobject;
 
                if (ctrl->editbox.has_list) {
+#if !GTK_CHECK_VERSION(2,4,0)
+                   /*
+                    * GTK 1 combo box.
+                    */
                    w = gtk_combo_new();
                    gtk_combo_set_value_in_list(GTK_COMBO(w), FALSE, TRUE);
                    uc->entry = GTK_COMBO(w)->entry;
                    uc->list = GTK_COMBO(w)->list;
+                   signalobject = uc->entry;
+#else
+                   /*
+                    * GTK 2 combo box.
+                    */
+                   uc->listmodel = gtk_list_store_new(2, G_TYPE_INT,
+                                                      G_TYPE_STRING);
+                   w = gtk_combo_box_entry_new_with_model
+                       (GTK_TREE_MODEL(uc->listmodel), 1);
+                   /* We cannot support password combo boxes. */
+                   assert(!ctrl->editbox.password);
+                   uc->combo = w;
+                   signalobject = uc->combo;
+#endif
                } else {
                    w = gtk_entry_new();
                    if (ctrl->editbox.password)
                        gtk_entry_set_visibility(GTK_ENTRY(w), FALSE);
                    uc->entry = w;
+                   signalobject = w;
                }
-               gtk_signal_connect(GTK_OBJECT(uc->entry), "changed",
-                                  GTK_SIGNAL_FUNC(editbox_changed), dp);
-               gtk_signal_connect(GTK_OBJECT(uc->entry), "key_press_event",
+               uc->entrysig =
+                   gtk_signal_connect(GTK_OBJECT(signalobject), "changed",
+                                      GTK_SIGNAL_FUNC(editbox_changed), dp);
+               gtk_signal_connect(GTK_OBJECT(signalobject), "key_press_event",
                                   GTK_SIGNAL_FUNC(editbox_key), dp);
-               gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_in_event",
+               gtk_signal_connect(GTK_OBJECT(signalobject), "focus_in_event",
                                   GTK_SIGNAL_FUNC(widget_focus), dp);
+               gtk_signal_connect(GTK_OBJECT(signalobject), "focus_out_event",
+                                  GTK_SIGNAL_FUNC(editbox_lostfocus), dp);
+               gtk_signal_connect(GTK_OBJECT(signalobject), "focus_out_event",
+                                  GTK_SIGNAL_FUNC(editbox_lostfocus), dp);
                /*
                 * Edit boxes, for some strange reason, have a minimum
                 * width of 150 in GTK 1.2. We don't want this - we'd
@@ -1538,8 +2030,6 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
                    w = container;
                    uc->label = label;
                }
-               gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_out_event",
-                                  GTK_SIGNAL_FUNC(editbox_lostfocus), dp);
            }
             break;
           case CTRL_FILESELECT:
@@ -1580,8 +2070,9 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
 
                gtk_signal_connect(GTK_OBJECT(uc->entry), "key_press_event",
                                   GTK_SIGNAL_FUNC(editbox_key), dp);
-               gtk_signal_connect(GTK_OBJECT(uc->entry), "changed",
-                                  GTK_SIGNAL_FUNC(editbox_changed), dp);
+               uc->entrysig =
+                   gtk_signal_connect(GTK_OBJECT(uc->entry), "changed",
+                                      GTK_SIGNAL_FUNC(editbox_changed), dp);
                 gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_in_event",
                                    GTK_SIGNAL_FUNC(widget_focus), dp);
                 gtk_signal_connect(GTK_OBJECT(uc->button), "focus_in_event",
@@ -1591,7 +2082,46 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
             }
             break;
           case CTRL_LISTBOX:
-            if (ctrl->listbox.height == 0) {
+
+#if GTK_CHECK_VERSION(2,0,0)
+           /*
+            * First construct the list data store, with the right
+            * number of columns.
+            */
+#  if !GTK_CHECK_VERSION(2,4,0)
+           /* (For GTK 2.0 to 2.3, we do this for full listboxes only,
+            * because combo boxes are still done the old GTK1 way.) */
+           if (ctrl->listbox.height > 0)
+#  endif
+           {
+               GType *types;
+               int i;
+               int cols;
+
+               cols = ctrl->listbox.ncols;
+               cols = cols ? cols : 1;
+               types = snewn(1 + cols, GType);
+
+               types[0] = G_TYPE_INT;
+               for (i = 0; i < cols; i++)
+                   types[i+1] = G_TYPE_STRING;
+
+               uc->listmodel = gtk_list_store_newv(1 + cols, types);
+
+               sfree(types);
+           }
+#endif
+
+           /*
+            * See if it's a drop-down list (non-editable combo
+            * box).
+            */
+           if (ctrl->listbox.height == 0) {
+#if !GTK_CHECK_VERSION(2,4,0)
+               /*
+                * GTK1 and early-GTK2 option-menu style of
+                * drop-down list.
+                */
                 uc->optmenu = w = gtk_option_menu_new();
                uc->menu = gtk_menu_new();
                gtk_option_menu_set_menu(GTK_OPTION_MENU(w), uc->menu);
@@ -1599,7 +2129,41 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
                                    (gpointer)uc->optmenu);
                 gtk_signal_connect(GTK_OBJECT(uc->optmenu), "focus_in_event",
                                    GTK_SIGNAL_FUNC(widget_focus), dp);
+#else
+               /*
+                * Late-GTK2 style using a GtkComboBox.
+                */
+               GtkCellRenderer *cr;
+
+               /*
+                * Create a non-editable GtkComboBox (that is, not
+                * its subclass GtkComboBoxEntry).
+                */
+               w = gtk_combo_box_new_with_model
+                   (GTK_TREE_MODEL(uc->listmodel));
+               uc->combo = w;
+
+               /*
+                * Tell it how to render a list item (i.e. which
+                * column to look at in the list model).
+                */
+               cr = gtk_cell_renderer_text_new();
+               gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(w), cr, TRUE);
+               gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(w), cr,
+                                              "text", 1, NULL);
+
+               /*
+                * And tell it to notify us when the selection
+                * changes.
+                */
+               g_signal_connect(G_OBJECT(w), "changed",
+                                G_CALLBACK(droplist_selchange), dp);
+#endif
             } else {
+#if !GTK_CHECK_VERSION(2,0,0)
+               /*
+                * GTK1-style full list box.
+                */
                 uc->list = gtk_list_new();
                 if (ctrl->listbox.multisel == 2) {
                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
@@ -1639,10 +2203,11 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
                  * upgrades, I'd be grateful.
                  */
                {
-                   int edge = GTK_WIDGET(uc->list)->style->klass->ythickness;
+                   int edge;
+                   edge = GTK_WIDGET(uc->list)->style->klass->ythickness;
                     gtk_widget_set_usize(w, 10,
                                          2*edge + (ctrl->listbox.height *
-                                                  listitemheight));
+                                                  get_listitemheight(w)));
                }
 
                 if (ctrl->listbox.draglist) {
@@ -1677,35 +2242,115 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
 
                     w = cols;
                 }
+#else
+               /*
+                * GTK2 treeview-based full list box.
+                */
+               GtkTreeSelection *sel;
+
+               /*
+                * Create the list box itself, its columns, and
+                * its containing scrolled window.
+                */
+               w = gtk_tree_view_new_with_model
+                   (GTK_TREE_MODEL(uc->listmodel));
+               g_object_set_data(G_OBJECT(uc->listmodel), "user-data",
+                                 (gpointer)w);
+               gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
+               sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(w));
+               gtk_tree_selection_set_mode
+                   (sel, ctrl->listbox.multisel ? GTK_SELECTION_MULTIPLE :
+                    GTK_SELECTION_SINGLE);
+               uc->treeview = w;
+               gtk_signal_connect(GTK_OBJECT(w), "row-activated",
+                                  GTK_SIGNAL_FUNC(listbox_doubleclick), dp);
+               g_signal_connect(G_OBJECT(sel), "changed",
+                                G_CALLBACK(listbox_selchange), dp);
+
+               if (ctrl->listbox.draglist) {
+                   gtk_tree_view_set_reorderable(GTK_TREE_VIEW(w), TRUE);
+                   g_signal_connect(G_OBJECT(uc->listmodel), "row-inserted",
+                                    G_CALLBACK(listbox_reorder), dp);
+               }
+
+               {
+                   int i;
+                   int cols;
+
+                   cols = ctrl->listbox.ncols;
+                   cols = cols ? cols : 1;
+                   for (i = 0; i < cols; i++) {
+                       GtkTreeViewColumn *column;
+                       /*
+                        * It appears that GTK 2 doesn't leave us any
+                        * particularly sensible way to honour the
+                        * "percentages" specification in the ctrl
+                        * structure.
+                        */
+                       column = gtk_tree_view_column_new_with_attributes
+                           ("heading", gtk_cell_renderer_text_new(),
+                            "text", i+1, (char *)NULL);
+                       gtk_tree_view_column_set_sizing
+                           (column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
+                       gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
+                   }
+               }
+
+               {
+                   GtkWidget *scroll;
 
+                   scroll = gtk_scrolled_window_new(NULL, NULL);
+                   gtk_scrolled_window_set_shadow_type
+                       (GTK_SCROLLED_WINDOW(scroll), GTK_SHADOW_IN);
+                   gtk_widget_show(w);
+                   gtk_container_add(GTK_CONTAINER(scroll), w);
+                   gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
+                                                  GTK_POLICY_AUTOMATIC,
+                                                  GTK_POLICY_ALWAYS);
+                   gtk_widget_set_size_request
+                       (scroll, -1,
+                        ctrl->listbox.height * get_listitemheight(w));
+
+                   w = scroll;
+               }
+#endif
             }
-            if (ctrl->generic.label) {
-                GtkWidget *label, *container;
 
-                label = gtk_label_new(ctrl->generic.label);
+           if (ctrl->generic.label) {
+               GtkWidget *label, *container;
+                GtkRequisition req;
+
+               label = gtk_label_new(ctrl->generic.label);
+
+               shortcut_add(scs, label, ctrl->listbox.shortcut,
+                            SHORTCUT_FOCUS, w);
 
                container = columns_new(4);
-                if (ctrl->listbox.percentwidth == 100) {
-                    columns_add(COLUMNS(container), label, 0, 1);
+               if (ctrl->listbox.percentwidth == 100) {
+                   columns_add(COLUMNS(container), label, 0, 1);
                    columns_force_left_align(COLUMNS(container), label);
-                    columns_add(COLUMNS(container), w, 0, 1);
-                } else {
-                    gint percentages[2];
-                    percentages[1] = ctrl->listbox.percentwidth;
-                    percentages[0] = 100 - ctrl->listbox.percentwidth;
-                    columns_set_cols(COLUMNS(container), 2, percentages);
-                    columns_add(COLUMNS(container), label, 0, 1);
+                   columns_add(COLUMNS(container), w, 0, 1);
+               } else {
+                   gint percentages[2];
+                   percentages[1] = ctrl->listbox.percentwidth;
+                   percentages[0] = 100 - ctrl->listbox.percentwidth;
+                   columns_set_cols(COLUMNS(container), 2, percentages);
+                   columns_add(COLUMNS(container), label, 0, 1);
                    columns_force_left_align(COLUMNS(container), label);
-                    columns_add(COLUMNS(container), w, 1, 1);
-                }
-                gtk_widget_show(label);
-                gtk_widget_show(w);
-               shortcut_add(scs, label, ctrl->listbox.shortcut,
-                            SHORTCUT_UCTRL, uc);
-                w = container;
+                   columns_add(COLUMNS(container), w, 1, 1);
+                   /* Centre the label vertically. */
+                   gtk_widget_size_request(w, &req);
+                   gtk_widget_set_usize(label, -1, req.height);
+                   gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
+               }
+               gtk_widget_show(label);
+               gtk_widget_show(w);
+
+               w = container;
                uc->label = label;
-            }
-            break;
+           }
+
+           break;
           case CTRL_TEXT:
            /*
             * Wrapping text widgets don't sit well with the GTK
@@ -1760,10 +2405,40 @@ GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
 struct selparam {
     struct dlgparam *dp;
     GtkNotebook *panels;
-    GtkWidget *panel, *treeitem;
+    GtkWidget *panel;
+#if !GTK_CHECK_VERSION(2,0,0)
+    GtkWidget *treeitem;
+#else
+    int depth;
+    GtkTreePath *treepath;
+#endif
     struct Shortcuts shortcuts;
 };
 
+#if GTK_CHECK_VERSION(2,0,0)
+static void treeselection_changed(GtkTreeSelection *treeselection,
+                                 gpointer data)
+{
+    struct selparam *sps = (struct selparam *)data, *sp;
+    GtkTreeModel *treemodel;
+    GtkTreeIter treeiter;
+    gint spindex;
+    gint page_num;
+
+    if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
+       return;
+
+    gtk_tree_model_get(treemodel, &treeiter, TREESTORE_PARAMS, &spindex, -1);
+    sp = &sps[spindex];
+
+    page_num = gtk_notebook_page_num(sp->panels, sp->panel);
+    gtk_notebook_set_page(sp->panels, page_num);
+
+    dlg_refresh(NULL, sp->dp);
+
+    sp->dp->shortcuts = &sp->shortcuts;
+}
+#else
 static void treeitem_sel(GtkItem *item, gpointer data)
 {
     struct selparam *sp = (struct selparam *)data;
@@ -1777,12 +2452,14 @@ static void treeitem_sel(GtkItem *item, gpointer data)
     sp->dp->shortcuts = &sp->shortcuts;
     sp->dp->currtreeitem = sp->treeitem;
 }
+#endif
 
 static void window_destroy(GtkWidget *widget, gpointer data)
 {
     gtk_main_quit();
 }
 
+#if !GTK_CHECK_VERSION(2,0,0)
 static int tree_grab_focus(struct dlgparam *dp)
 {
     int i, f;
@@ -1818,6 +2495,7 @@ gint tree_focus(GtkContainer *container, GtkDirectionType direction,
      */
     return tree_grab_focus(dp);
 }
+#endif
 
 int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 {
@@ -1836,7 +2514,11 @@ int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 
        switch (sc->action) {
          case SHORTCUT_TREE:
+#if GTK_CHECK_VERSION(2,0,0)
+           gtk_widget_grab_focus(sc->widget);
+#else
            tree_grab_focus(dp);
+#endif
            break;
          case SHORTCUT_FOCUS:
            gtk_widget_grab_focus(sc->widget);
@@ -1891,12 +2573,8 @@ int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
                }
                break;
              case CTRL_LISTBOX:
-               /*
-                * If the list is really an option menu, we focus
-                * and click it. Otherwise we tell it to focus one
-                * of its children, which appears to do the Right
-                * Thing.
-                */
+
+#if !GTK_CHECK_VERSION(2,4,0)
                if (sc->uc->optmenu) {
                    GdkEventButton bev;
                    gint returnval;
@@ -1909,12 +2587,33 @@ int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
                    gtk_signal_emit_by_name(GTK_OBJECT(sc->uc->optmenu),
                                            "button_press_event",
                                            &bev, &returnval);
-               } else {
-                    assert(sc->uc->list != NULL);
-
+                   break;
+               }
+#else
+               if (sc->uc->combo) {
+                   gtk_widget_grab_focus(sc->uc->combo);
+                   gtk_combo_box_popup(GTK_COMBO_BOX(sc->uc->combo));
+                   break;
+               }
+#endif
+#if !GTK_CHECK_VERSION(2,0,0)
+               if (sc->uc->list) {
+                   /*
+                    * For GTK-1 style list boxes, we tell it to
+                    * focus one of its children, which appears to
+                    * do the Right Thing.
+                    */
                     gtk_container_focus(GTK_CONTAINER(sc->uc->list),
                                         GTK_DIR_TAB_FORWARD);
+                   break;
+               }
+#else
+               if (sc->uc->treeview) {
+                   gtk_widget_grab_focus(sc->uc->treeview);
+                   break;
                }
+#endif
+               assert(!"We shouldn't get here");
                break;
            }
            break;
@@ -1924,6 +2623,7 @@ int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
     return FALSE;
 }
 
+#if !GTK_CHECK_VERSION(2,0,0)
 int tree_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 {
     struct dlgparam *dp = (struct dlgparam *)data;
@@ -1992,6 +2692,7 @@ int tree_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 
     return FALSE;
 }
+#endif
 
 static void shortcut_highlight(GtkWidget *labelw, int chr)
 {
@@ -2038,13 +2739,90 @@ void shortcut_add(struct Shortcuts *scs, GtkWidget *labelw,
     shortcut_highlight(labelw, chr);
 }
 
-int get_listitemheight(void)
+int get_listitemheight(GtkWidget *w)
 {
+#if !GTK_CHECK_VERSION(2,0,0)
     GtkWidget *listitem = gtk_list_item_new_with_label("foo");
     GtkRequisition req;
     gtk_widget_size_request(listitem, &req);
-    gtk_widget_unref(listitem);
+    gtk_object_sink(GTK_OBJECT(listitem));
     return req.height;
+#else
+    int height;
+    GtkCellRenderer *cr = gtk_cell_renderer_text_new();
+    gtk_cell_renderer_get_size(cr, w, NULL, NULL, NULL, NULL, &height);
+    g_object_ref(G_OBJECT(cr));
+    gtk_object_sink(GTK_OBJECT(cr));
+    g_object_unref(G_OBJECT(cr));
+    return height;
+#endif
+}
+
+void set_dialog_action_area(GtkDialog *dlg, GtkWidget *w)
+{
+#if !GTK_CHECK_VERSION(2,0,0)
+
+    /*
+     * In GTK 1, laying out the buttons at the bottom of the
+     * configuration box is nice and easy, because a GtkDialog's
+     * action_area is a GtkHBox which stretches to cover the full
+     * width of the dialog. So we just put our Columns widget
+     * straight into that hbox, and it ends up just where we want
+     * it.
+     */
+    gtk_box_pack_start(GTK_BOX(dlg->action_area), w, TRUE, TRUE, 0);
+
+#else
+    /*
+     * In GTK 2, the action area is now a GtkHButtonBox and its
+     * layout behaviour seems to be different: it doesn't stretch
+     * to cover the full width of the window, but instead finds its
+     * own preferred width and right-aligns that within the window.
+     * This isn't what we want, because we have both left-aligned
+     * and right-aligned buttons coming out of the above call to
+     * layout_ctrls(), and right-aligning the whole thing will
+     * result in the former being centred and looking weird.
+     *
+     * So instead we abandon the dialog's action area completely:
+     * we gtk_widget_hide() it in the below code, and we also call
+     * gtk_dialog_set_has_separator() to remove the separator above
+     * it. We then insert our own action area into the end of the
+     * dialog's main vbox, and add our own separator above that.
+     *
+     * (Ideally, if we were a native GTK app, we would use the
+     * GtkHButtonBox's _own_ innate ability to support one set of
+     * buttons being right-aligned and one left-aligned. But to do
+     * that here, we would have to either (a) pick apart our cross-
+     * platform layout structures and treat them specially for this
+     * particular set of controls, which would be painful, or else
+     * (b) develop a special and simpler cross-platform
+     * representation for these particular controls, and introduce
+     * special-case code into all the _other_ platforms to handle
+     * it. Neither appeals. Therefore, I regretfully discard the
+     * GTKHButtonBox and go it alone.)
+     */
+
+    GtkWidget *align;
+    align = gtk_alignment_new(0, 0, 1, 1);
+    gtk_container_add(GTK_CONTAINER(align), w);
+    /*
+     * The purpose of this GtkAlignment is to provide padding
+     * around the buttons. The padding we use is twice the padding
+     * used in our GtkColumns, because we nest two GtkColumns most
+     * of the time (one separating the tree view from the main
+     * controls, and another for the main controls themselves).
+     */
+#if GTK_CHECK_VERSION(2,4,0)
+    gtk_alignment_set_padding(GTK_ALIGNMENT(align), 8, 8, 8, 8);
+#endif
+    gtk_widget_show(align);
+    gtk_box_pack_end(GTK_BOX(dlg->vbox), align, FALSE, TRUE, 0);
+    w = gtk_hseparator_new();
+    gtk_box_pack_end(GTK_BOX(dlg->vbox), w, FALSE, TRUE, 0);
+    gtk_widget_show(w);
+    gtk_widget_hide(dlg->action_area);
+    gtk_dialog_set_has_separator(dlg, FALSE);
+#endif
 }
 
 int do_config_box(const char *title, Config *cfg, int midsession,
@@ -2052,11 +2830,19 @@ int do_config_box(const char *title, Config *cfg, int midsession,
 {
     GtkWidget *window, *hbox, *vbox, *cols, *label,
        *tree, *treescroll, *panels, *panelvbox;
-    int index, level, listitemheight;
+    int index, level;
     struct controlbox *ctrlbox;
     char *path;
+#if GTK_CHECK_VERSION(2,0,0)
+    GtkTreeStore *treestore;
+    GtkCellRenderer *treerenderer;
+    GtkTreeViewColumn *treecolumn;
+    GtkTreeSelection *treeselection;
+    GtkTreeIter treeiterlevels[8];
+#else
     GtkTreeItem *treeitemlevels[8];
     GtkTree *treelevels[8];
+#endif
     struct dlgparam dp;
     struct Shortcuts scs;
 
@@ -2065,8 +2851,6 @@ int do_config_box(const char *title, Config *cfg, int midsession,
 
     dlg_init(&dp);
 
-    listitemheight = get_listitemheight();
-
     for (index = 0; index < lenof(scs.sc); index++) {
        scs.sc[index].action = SHORTCUT_EMPTY;
     }
@@ -2094,14 +2878,28 @@ int do_config_box(const char *title, Config *cfg, int midsession,
     columns_force_left_align(COLUMNS(cols), label);
     gtk_widget_show(label);
     treescroll = gtk_scrolled_window_new(NULL, NULL);
+#if GTK_CHECK_VERSION(2,0,0)
+    treestore = gtk_tree_store_new
+       (TREESTORE_NUM, G_TYPE_STRING, G_TYPE_INT);
+    tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(treestore));
+    gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree), FALSE);
+    treerenderer = gtk_cell_renderer_text_new();
+    treecolumn = gtk_tree_view_column_new_with_attributes
+       ("Label", treerenderer, "text", 0, NULL);
+    gtk_tree_view_append_column(GTK_TREE_VIEW(tree), treecolumn);
+    treeselection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
+    gtk_tree_selection_set_mode(treeselection, GTK_SELECTION_BROWSE);
+    gtk_container_add(GTK_CONTAINER(treescroll), tree);
+#else
     tree = gtk_tree_new();
-    gtk_signal_connect(GTK_OBJECT(tree), "focus_in_event",
-                       GTK_SIGNAL_FUNC(widget_focus), &dp);
-    shortcut_add(&scs, label, 'g', SHORTCUT_TREE, tree);
     gtk_tree_set_view_mode(GTK_TREE(tree), GTK_TREE_VIEW_ITEM);
     gtk_tree_set_selection_mode(GTK_TREE(tree), GTK_SELECTION_BROWSE);
     gtk_signal_connect(GTK_OBJECT(tree), "focus",
                       GTK_SIGNAL_FUNC(tree_focus), &dp);
+#endif
+    gtk_signal_connect(GTK_OBJECT(tree), "focus_in_event",
+                       GTK_SIGNAL_FUNC(widget_focus), &dp);
+    shortcut_add(&scs, label, 'g', SHORTCUT_TREE, tree);
     gtk_widget_show(treescroll);
     gtk_box_pack_start(GTK_BOX(vbox), treescroll, TRUE, TRUE, 0);
     panels = gtk_notebook_new();
@@ -2118,14 +2916,18 @@ int do_config_box(const char *title, Config *cfg, int midsession,
        GtkWidget *w;
 
        if (!*s->pathname) {
-           w = layout_ctrls(&dp, &scs, s, listitemheight, GTK_WINDOW(window));
-           gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->action_area),
-                              w, TRUE, TRUE, 0);
+           w = layout_ctrls(&dp, &scs, s, GTK_WINDOW(window));
+
+           set_dialog_action_area(GTK_DIALOG(window), w);
        } else {
            int j = path ? ctrl_path_compare(s->pathname, path) : 0;
            if (j != INT_MAX) {        /* add to treeview, start new panel */
                char *c;
+#if GTK_CHECK_VERSION(2,0,0)
+               GtkTreeIter treeiter;
+#else
                GtkWidget *treeitem;
+#endif
                int first;
 
                /*
@@ -2146,8 +2948,68 @@ int do_config_box(const char *title, Config *cfg, int midsession,
                else
                    c++;
 
-               treeitem = gtk_tree_item_new_with_label(c);
+               path = s->pathname;
+
+               first = (panelvbox == NULL);
+
+               panelvbox = gtk_vbox_new(FALSE, 4);
+               gtk_widget_show(panelvbox);
+               gtk_notebook_append_page(GTK_NOTEBOOK(panels), panelvbox,
+                                        NULL);
+               if (first) {
+                   gint page_num;
+
+                   page_num = gtk_notebook_page_num(GTK_NOTEBOOK(panels),
+                                                    panelvbox);
+                   gtk_notebook_set_page(GTK_NOTEBOOK(panels), page_num);
+               }
+
+               if (nselparams >= selparamsize) {
+                   selparamsize += 16;
+                   selparams = sresize(selparams, selparamsize,
+                                       struct selparam);
+               }
+               selparams[nselparams].dp = &dp;
+               selparams[nselparams].panels = GTK_NOTEBOOK(panels);
+               selparams[nselparams].panel = panelvbox;
+               selparams[nselparams].shortcuts = scs;   /* structure copy */
+
                assert(j-1 < level);
+
+#if GTK_CHECK_VERSION(2,0,0)
+               if (j > 0)
+                   /* treeiterlevels[j-1] will always be valid because we
+                    * don't allow implicit path components; see above.
+                    */
+                   gtk_tree_store_append(treestore, &treeiter,
+                                         &treeiterlevels[j-1]);
+               else
+                   gtk_tree_store_append(treestore, &treeiter, NULL);
+               gtk_tree_store_set(treestore, &treeiter,
+                                  TREESTORE_PATH, c,
+                                  TREESTORE_PARAMS, nselparams,
+                                  -1);
+               treeiterlevels[j] = treeiter;
+
+               selparams[nselparams].depth = j;
+               if (j > 0) {
+                   selparams[nselparams].treepath =
+                       gtk_tree_model_get_path(GTK_TREE_MODEL(treestore),
+                                               &treeiterlevels[j-1]);
+                   /*
+                    * We are going to collapse all tree branches
+                    * at depth greater than 2, but not _yet_; see
+                    * the comment at the call to
+                    * gtk_tree_view_collapse_row below.
+                    */
+                   gtk_tree_view_expand_row(GTK_TREE_VIEW(tree),
+                                            selparams[nselparams].treepath,
+                                            FALSE);
+               } else {
+                   selparams[nselparams].treepath = NULL;
+               }
+#else
+               treeitem = gtk_tree_item_new_with_label(c);
                if (j > 0) {
                    if (!treelevels[j-1]) {
                        treelevels[j-1] = GTK_TREE(gtk_tree_new());
@@ -2165,7 +3027,6 @@ int do_config_box(const char *title, Config *cfg, int midsession,
                }
                treeitemlevels[j] = GTK_TREE_ITEM(treeitem);
                treelevels[j] = NULL;
-               level = j+1;
 
                 gtk_signal_connect(GTK_OBJECT(treeitem), "key_press_event",
                                    GTK_SIGNAL_FUNC(tree_key_press), &dp);
@@ -2174,45 +3035,54 @@ int do_config_box(const char *title, Config *cfg, int midsession,
 
                gtk_widget_show(treeitem);
 
-               path = s->pathname;
-
-               first = (panelvbox == NULL);
-
-               panelvbox = gtk_vbox_new(FALSE, 4);
-               gtk_widget_show(panelvbox);
-               gtk_notebook_append_page(GTK_NOTEBOOK(panels), panelvbox,
-                                        NULL);
-               if (first) {
-                   gint page_num;
-
-                   page_num = gtk_notebook_page_num(GTK_NOTEBOOK(panels),
-                                                    panelvbox);
-                   gtk_notebook_set_page(GTK_NOTEBOOK(panels), page_num);
+               if (first)
                    gtk_tree_select_child(GTK_TREE(tree), treeitem);
-               }
-
-               if (nselparams >= selparamsize) {
-                   selparamsize += 16;
-                   selparams = sresize(selparams, selparamsize,
-                                       struct selparam);
-               }
-               selparams[nselparams].dp = &dp;
-               selparams[nselparams].panels = GTK_NOTEBOOK(panels);
-               selparams[nselparams].panel = panelvbox;
-               selparams[nselparams].shortcuts = scs;   /* structure copy */
                selparams[nselparams].treeitem = treeitem;
-               nselparams++;
+#endif
 
+               level = j+1;
+               nselparams++;
            }
 
-           w = layout_ctrls(&dp,
-                            &selparams[nselparams-1].shortcuts,
-                            s, listitemheight, NULL);
+           w = layout_ctrls(&dp, &selparams[nselparams-1].shortcuts, s, NULL);
            gtk_box_pack_start(GTK_BOX(panelvbox), w, FALSE, FALSE, 0);
             gtk_widget_show(w);
        }
     }
 
+#if GTK_CHECK_VERSION(2,0,0)
+    {
+       GtkRequisition req;
+       int i;
+
+       /*
+        * We want our tree view to come up with all branches at
+        * depth 2 or more collapsed. However, if we start off
+        * with those branches collapsed, then the tree view's
+        * size request will be calculated based on the width of
+        * the collapsed tree. So instead we start with them all
+        * expanded; then we ask for the current size request,
+        * collapse the relevant rows, and force the width to the
+        * value we just computed. This arranges that the tree
+        * view is wide enough to have all branches expanded
+        * safely.
+        */
+
+       gtk_widget_size_request(tree, &req);
+
+       for (i = 0; i < nselparams; i++)
+           if (selparams[i].depth >= 2)
+               gtk_tree_view_collapse_row(GTK_TREE_VIEW(tree),
+                                          selparams[i].treepath);
+
+       gtk_widget_set_size_request(tree, req.width, -1);
+    }
+#endif
+
+#if GTK_CHECK_VERSION(2,0,0)
+    g_signal_connect(G_OBJECT(treeselection), "changed",
+                    G_CALLBACK(treeselection_changed), selparams);
+#else
     dp.ntreeitems = nselparams;
     dp.treeitems = snewn(dp.ntreeitems, GtkWidget *);
 
@@ -2222,12 +3092,15 @@ int do_config_box(const char *title, Config *cfg, int midsession,
                           &selparams[index]);
         dp.treeitems[index] = selparams[index].treeitem;
     }
+#endif
 
     dp.data = cfg;
     dlg_refresh(NULL, &dp);
 
     dp.shortcuts = &selparams[0].shortcuts;
+#if !GTK_CHECK_VERSION(2,0,0)
     dp.currtreeitem = dp.treeitems[0];
+#endif
     dp.lastfocus = NULL;
     dp.retval = 0;
     dp.window = window;
@@ -2242,8 +3115,10 @@ int do_config_box(const char *title, Config *cfg, int midsession,
        set_window_icon(window, cfg_icon, n_cfg_icon);
     }
 
+#if !GTK_CHECK_VERSION(2,0,0)
     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(treescroll),
                                          tree);
+#endif
     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(treescroll),
                                   GTK_POLICY_NEVER,
                                   GTK_POLICY_AUTOMATIC);
@@ -2354,11 +3229,10 @@ int messagebox(GtkWidget *parentwin, char *title, char *msg, int minwid, ...)
 
     window = gtk_dialog_new();
     gtk_window_set_title(GTK_WINDOW(window), title);
-    w0 = layout_ctrls(&dp, &scs, s0, 0, GTK_WINDOW(window));
-    gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->action_area),
-                      w0, TRUE, TRUE, 0);
+    w0 = layout_ctrls(&dp, &scs, s0, GTK_WINDOW(window));
+    set_dialog_action_area(GTK_DIALOG(window), w0);
     gtk_widget_show(w0);
-    w1 = layout_ctrls(&dp, &scs, s1, 0, GTK_WINDOW(window));
+    w1 = layout_ctrls(&dp, &scs, s1, GTK_WINDOW(window));
     gtk_container_set_border_width(GTK_CONTAINER(w1), 10);
     gtk_widget_set_usize(w1, minwid+20, -1);
     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
@@ -2397,7 +3271,7 @@ static int string_width(char *text)
     GtkWidget *label = gtk_label_new(text);
     GtkRequisition req;
     gtk_widget_size_request(label, &req);
-    gtk_widget_unref(label);
+    gtk_object_sink(GTK_OBJECT(label));
     return req.width;
 }
 
@@ -2549,7 +3423,7 @@ static void licence_clicked(GtkButton *button, gpointer data)
        "Portions copyright Robert de Bath, Joris van Rantwijk, Delian "
        "Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas "
        "Barry, Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, "
-       "Markus Kuhn, and CORE SDI S.A.\n\n"
+       "Markus Kuhn, Colin Watson, and CORE SDI S.A.\n\n"
 
        "Permission is hereby granted, free of charge, to any person "
        "obtaining a copy of this software and associated documentation "
@@ -2743,7 +3617,14 @@ gint eventlog_selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
      */
     uc = dlg_find_byctrl(&es->dp, es->listctrl);
     es->ignore_selchange = 1;
+#if !GTK_CHECK_VERSION(2,0,0)
+    assert(uc->list);
     gtk_list_unselect_all(GTK_LIST(uc->list));
+#else
+    assert(uc->treeview);
+    gtk_tree_selection_unselect_all
+       (gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview)));
+#endif
     es->ignore_selchange = 0;
 
     sfree(es->seldata);
@@ -2759,7 +3640,7 @@ void showeventlog(void *estuff, void *parentwin)
     GtkWidget *parent = GTK_WIDGET(parentwin);
     struct controlset *s0, *s1;
     union control *c;
-    int listitemheight, index;
+    int index;
     char *title;
 
     if (es->window) {
@@ -2793,19 +3674,14 @@ void showeventlog(void *estuff, void *parentwin)
     c->listbox.percentages[1] = 10;
     c->listbox.percentages[2] = 65;
 
-    listitemheight = get_listitemheight();
-
     es->window = window = gtk_dialog_new();
     title = dupcat(appname, " Event Log", NULL);
     gtk_window_set_title(GTK_WINDOW(window), title);
     sfree(title);
-    w0 = layout_ctrls(&es->dp, &es->scs, s0,
-                     listitemheight, GTK_WINDOW(window));
-    gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->action_area),
-                      w0, TRUE, TRUE, 0);
+    w0 = layout_ctrls(&es->dp, &es->scs, s0, GTK_WINDOW(window));
+    set_dialog_action_area(GTK_DIALOG(window), w0);
     gtk_widget_show(w0);
-    w1 = layout_ctrls(&es->dp, &es->scs, s1,
-                     listitemheight, GTK_WINDOW(window));
+    w1 = layout_ctrls(&es->dp, &es->scs, s1, GTK_WINDOW(window));
     gtk_container_set_border_width(GTK_CONTAINER(w1), 10);
     gtk_widget_set_usize(w1, 20 +
                         string_width("LINE OF TEXT GIVING WIDTH OF EVENT LOG"