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-rw-r--r--e-util/e-dialog-widgets.c291
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diff --git a/e-util/e-dialog-widgets.c b/e-util/e-dialog-widgets.c
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+/* Evolution internal utilities - Glade dialog widget utilities
+ *
+ * Copyright (C) 2000 Helix Code, Inc.
+ *
+ * Author: Federico Mena-Quintero <federico@gimp.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <gtk/gtkmenu.h>
+#include <gtk/gtkmenuitem.h>
+#include <gtk/gtkoptionmenu.h>
+#include <gtk/gtkradiobutton.h>
+#include <gtk/gtksignal.h>
+#include <gtk/gtkspinbutton.h>
+#include "e-dialog-widgets.h"
+
+
+
+typedef struct {
+ /* Widgets that are hooked */
+ GSList *widgets;
+} DialogHooks;
+
+
+
+/* Destroy handler for the dialog; frees the dialog hooks */
+static void
+dialog_destroy_cb (GtkObject *dialog, gpointer data)
+{
+ DialogHooks *hooks;
+
+ hooks = data;
+
+ g_slist_free (hooks->widgets);
+ hooks->widgets = NULL;
+
+ g_free (hooks);
+ gtk_object_set_data (dialog, "dialog-hooks", NULL);
+}
+
+/* Ensures that the dialog has the necessary attached data to store the widget
+ * hook information.
+ */
+static DialogHooks *
+get_dialog_hooks (GtkWidget *dialog)
+{
+ DialogHooks *hooks;
+
+ hooks = gtk_object_get_data (GTK_OBJECT (dialog), "dialog-hooks");
+ if (!hooks) {
+ hooks = g_new0 (DialogHooks, 1);
+ gtk_object_set_data (GTK_OBJECT (dialog), "dialog-hooks", hooks);
+ gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
+ GTK_SIGNAL_FUNC (dialog_destroy_cb), hooks);
+ }
+
+ return hooks;
+}
+
+/* Converts an mapped value to the appropriate index in an item group. The
+ * values for the items are provided as a -1-terminated array.
+ */
+static int
+value_to_index (const int *value_map, int value)
+{
+ int i;
+
+ for (i = 0; value_map[i] != -1; i++)
+ if (value_map[i] == value)
+ return i;
+
+ return -1;
+}
+
+/* Converts an index in an item group to the appropriate mapped value. See the
+ * function above.
+ */
+static int
+index_to_value (const int *value_map, int index)
+{
+ int i;
+
+ /* We do this the hard way, i.e. not as a simple array reference, to
+ * check for correctness.
+ */
+
+ for (i = 0; value_map[i] != -1; i++)
+ if (i == index)
+ return value_map[i];
+
+ return -1;
+}
+
+/* Callback for the "toggled" signal of toggle buttons */
+static void
+toggled_cb (GtkToggleButton *toggle, gpointer data)
+{
+ GnomePropertyBox *pbox;
+
+ pbox = GNOME_PROPERTY_BOX (data);
+
+ /* For radio buttons, we only notify the property box if the button is
+ * active, because we'll get one call for each of the changed buttons in
+ * the radio group.
+ */
+ if (!GTK_IS_RADIO_BUTTON (toggle) || toggle->active)
+ gnome_property_box_changed (pbox);
+}
+
+/* Hooks a radio button group */
+static void
+hook_radio (GtkWidget *dialog, GtkRadioButton *radio, gpointer value_var, gpointer info)
+{
+ GSList *group;
+ int *value;
+ int i;
+ const int *value_map;
+ GSList *l;
+
+ group = gtk_radio_button_group (radio);
+
+ /* Set the value */
+
+ value = (int *) value_var;
+ value_map = (const int *) info;
+
+ i = value_to_index (value_map, *value);
+ if (i != -1) {
+ l = g_slist_nth (group, i);
+ if (!l)
+ g_message ("hook_radio(): could not find index %d in radio group!", i);
+
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (l->data), TRUE);
+ } else
+ g_message ("hook_radio(): could not find value %d in value map!", *value);
+
+ /* Hook to changed */
+
+ if (GNOME_IS_PROPERTY_BOX (dialog))
+ for (l = group; l; l = l->next)
+ gtk_signal_connect (GTK_OBJECT (l->data), "toggled",
+ GTK_SIGNAL_FUNC (toggled_cb), dialog);
+}
+
+/* Callback for the "activate" signal of menu items */
+static void
+activate_cb (GtkMenuItem *item, gpointer data)
+{
+ GnomePropertyBox *pbox;
+
+ pbox = GNOME_PROPERTY_BOX (data);
+ gnome_property_box_changed (pbox);
+}
+
+/* Hooks an option menu */
+static void
+hook_option_menu (GtkWidget *dialog, GtkOptionMenu *omenu, gpointer value_var, gpointer info)
+{
+ int *value;
+ int i;
+ const int *value_map;
+
+ /* Set the value */
+
+ value = (int *) value_var;
+ value_map = (const int *) info;
+
+ i = value_to_index (value_map, *value);
+ if (i != -1)
+ gtk_option_menu_set_history (omenu, i);
+ else
+ g_message ("hook_option_menu(): could not find value %d in value map!", *value);
+
+ /* Hook to changed */
+
+ if (GNOME_IS_PROPERTY_BOX (dialog)) {
+ GtkMenu *menu;
+ GList *l;
+
+ menu = GTK_MENU (gtk_option_menu_get_menu (omenu));
+
+ for (l = GTK_MENU_SHELL (menu)->children; l; l = l->next)
+ gtk_signal_connect (GTK_OBJECT (l->data), "activate",
+ GTK_SIGNAL_FUNC (activate_cb), dialog);
+ }
+}
+
+/* Hooks a toggle button */
+static void
+hook_toggle (GtkWidget *dialog, GtkToggleButton *toggle, gpointer value_var, gpointer info)
+{
+ gboolean *value;
+
+ /* Set the value */
+
+ value = (gboolean *) value_var;
+ gtk_toggle_button_set_active (toggle, *value);
+
+ /* Hook to changed */
+
+ if (GNOME_IS_PROPERTY_BOX (dialog))
+ gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
+ GTK_SIGNAL_FUNC (toggled_cb), dialog);
+}
+
+/* Callback for the "value_changed" signal of the adjustment of a spin button */
+static void
+value_changed_cb (GtkAdjustment *adj, gpointer data)
+{
+ GnomePropertyBox *pbox;
+
+ pbox = GNOME_PROPERTY_BOX (data);
+ gnome_property_box_changed (pbox);
+}
+
+/* Hooks a spin button */
+static void
+hook_spin_button (GtkWidget *dialog, GtkSpinButton *spin, gpointer value_var, gpointer info)
+{
+ double *value;
+ GtkAdjustment *adj;
+
+ /* Set the value */
+
+ value = (double *) value_var;
+ adj = gtk_spin_button_get_adjustment (spin);
+
+ adj->value = *value;
+ gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
+
+ /* Hook to changed */
+
+ if (GNOME_IS_PROPERTY_BOX (dialog))
+ gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
+ GTK_SIGNAL_FUNC (value_changed_cb), dialog);
+}
+
+/* Hooks an entry widget */
+static void
+hook_entry (GtkWidget *dialog, GtkEntry *entry, gpointer value_var, gpointer info)
+{
+}
+
+gboolean
+e_dialog_widget_hook_value (GtkWidget *dialog, GtkWidget *widget,
+ gpointer value_var, gpointer info)
+{
+ DialogHooks *hooks;
+
+ g_return_val_if_fail (dialog != NULL, FALSE);
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
+ g_return_val_if_fail (value_var != NULL, FALSE);
+
+ hooks = get_dialog_hooks (dialog);
+
+ /* First check if it is a "group" widget, like a radio button or an
+ * option menu. Then we check for normal ungrouped widgets.
+ */
+
+ if (GTK_IS_RADIO_BUTTON (widget))
+ hook_radio (dialog, GTK_RADIO_BUTTON (widget), value_var, info);
+ else if (GTK_IS_OPTION_MENU (widget))
+ hook_option_menu (dialog, GTK_OPTION_MENU (widget), value_var, info);
+ else if (GTK_IS_TOGGLE_BUTTON (widget))
+ hook_toggle (dialog, GTK_TOGGLE_BUTTON (widget), value_var, info);
+ else if (GTK_IS_SPIN_BUTTON (widget))
+ hook_spin_button (dialog, GTK_SPIN_BUTTON (widget), value_var, info);
+ else if (GTK_IS_ENTRY (widget))
+ hook_entry (dialog, GTK_ENTRY (widget), value_var, info);
+ else
+ return FALSE;
+
+ hooks->widgets = g_slist_prepend (hooks->widgets, widget);
+
+ return TRUE;
+}