/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ /* e-combo-button.c * * Copyright (C) 2001 Ximian, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * 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. * * Author: Ettore Perazzoli */ #ifdef HAVE_CONFIG_H #include #endif #include "e-combo-button.h" #include #include #include #include #include #include #include enum { ACTIVATE_DEFAULT, LAST_SIGNAL }; struct _EComboButtonPrivate { GtkWidget *arrow_pixmap; GtkWidget *hbox; GtkWidget *separator; GtkWidget *label_hbox; GtkMenu *menu; gboolean menu_popped_up; }; #define SPACING 2 static char *arrow_xpm[] = { "11 5 2 1", " c none", ". c #000000000000", " ......... ", " ....... ", " ..... ", " ... ", " . ", }; #define PARENT_TYPE gtk_button_get_type () static GtkButtonClass *parent_class = NULL; static guint combo_button_signals[LAST_SIGNAL] = { 0 }; /* Callbacks for the associated menu. */ static void menu_detacher (GtkWidget *widget, GtkMenu *menu) { EComboButton *combo_button; EComboButtonPrivate *priv; combo_button = E_COMBO_BUTTON (widget); priv = combo_button->priv; gtk_signal_disconnect_by_data (GTK_OBJECT (menu), combo_button); priv->menu = NULL; } static void menu_deactivate_callback (GtkMenuShell *menu_shell, void *data) { EComboButton *combo_button; EComboButtonPrivate *priv; combo_button = E_COMBO_BUTTON (data); priv = combo_button->priv; priv->menu_popped_up = FALSE; GTK_BUTTON (combo_button)->button_down = FALSE; gtk_button_leave (GTK_BUTTON (combo_button)); gtk_button_clicked (GTK_BUTTON (combo_button)); } static void menu_position_func (GtkMenu *menu, gint *x_return, gint *y_return, void *data) { EComboButton *combo_button; GtkAllocation *allocation; combo_button = E_COMBO_BUTTON (data); allocation = & (GTK_WIDGET (combo_button)->allocation); gdk_window_get_origin (GTK_WIDGET (combo_button)->window, x_return, y_return); *y_return += allocation->height; } /* GtkObject methods. */ static void impl_destroy (GtkObject *object) { EComboButton *combo_button; EComboButtonPrivate *priv; combo_button = E_COMBO_BUTTON (object); priv = combo_button->priv; if (priv->arrow_pixmap != NULL) { gtk_widget_destroy (priv->arrow_pixmap); priv->arrow_pixmap = NULL; } g_free (priv); (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); } /* GtkWidget methods. */ static void impl_realize (GtkWidget *widget) { EComboButton *combo_button; EComboButtonPrivate *priv; GdkPixmap *arrow_gdk_pixmap; GdkBitmap *arrow_gdk_mask; combo_button = E_COMBO_BUTTON (widget); priv = combo_button->priv; (* GTK_WIDGET_CLASS (parent_class)->realize) (widget); g_assert (priv->arrow_pixmap == NULL); arrow_gdk_pixmap = gdk_pixmap_create_from_xpm_d (widget->window, &arrow_gdk_mask, NULL, arrow_xpm); priv->arrow_pixmap = gtk_pixmap_new (arrow_gdk_pixmap, arrow_gdk_mask); gtk_widget_show (priv->arrow_pixmap); gtk_box_pack_start (GTK_BOX (priv->hbox), priv->arrow_pixmap, FALSE, TRUE, SPACING); gdk_pixmap_unref (arrow_gdk_pixmap); gdk_bitmap_unref (arrow_gdk_mask); } static void impl_unrealize (GtkWidget *widget) { EComboButton *combo_button; EComboButtonPrivate *priv; combo_button = E_COMBO_BUTTON (widget); priv = combo_button->priv; (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); if (priv->arrow_pixmap != NULL) { gtk_widget_destroy (priv->arrow_pixmap); priv->arrow_pixmap = NULL; } } static int impl_button_press_event (GtkWidget *widget, GdkEventButton *event) { EComboButton *combo_button; EComboButtonPrivate *priv; combo_button = E_COMBO_BUTTON (widget); priv = combo_button->priv; if (event->type == GDK_BUTTON_PRESS && event->button == 1) { GTK_BUTTON (widget)->button_down = TRUE; if (event->x >= priv->separator->allocation.x) { /* User clicked on the right side: pop up the menu. */ gtk_button_pressed (GTK_BUTTON (widget)); priv->menu_popped_up = TRUE; gtk_menu_popup (GTK_MENU (priv->menu), NULL, NULL, menu_position_func, combo_button, event->button, event->time); } else { /* User clicked on the left side: just behave like a normal button (i.e. not a toggle). */ gtk_grab_add (widget); gtk_button_pressed (GTK_BUTTON (widget)); } } return TRUE; } static int impl_button_release_event (GtkWidget *widget, GdkEventButton *event) { if (event->button == 1) { gtk_grab_remove (widget); gtk_button_released (GTK_BUTTON (widget)); } return TRUE; } static int impl_leave_notify_event (GtkWidget *widget, GdkEventCrossing *event) { EComboButton *combo_button; EComboButtonPrivate *priv; combo_button = E_COMBO_BUTTON (widget); priv = combo_button->priv; /* This is to override the standard behavior of deactivating the button when the pointer gets out of the widget, in the case in which we have just popped up the menu. Otherwise, the button would look as inactive when the menu is popped up. */ if (! priv->menu_popped_up) return (* GTK_WIDGET_CLASS (parent_class)->leave_notify_event) (widget, event); return FALSE; } static void class_init (GtkObjectClass *object_class) { GtkWidgetClass *widget_class; parent_class = gtk_type_class (PARENT_TYPE); object_class->destroy = impl_destroy; widget_class = GTK_WIDGET_CLASS (object_class); widget_class->realize = impl_realize; widget_class->unrealize = impl_unrealize; widget_class->button_press_event = impl_button_press_event; widget_class->button_release_event = impl_button_release_event; widget_class->leave_notify_event = impl_leave_notify_event; combo_button_signals[ACTIVATE_DEFAULT] = gtk_signal_new ("activate_default", GTK_RUN_FIRST, object_class->type, GTK_SIGNAL_OFFSET (EComboButtonClass, activate_default), gtk_marshal_NONE__NONE, GTK_TYPE_NONE, 0); gtk_object_class_add_signals (object_class, combo_button_signals, LAST_SIGNAL); } static void init (EComboButton *combo_button) { EComboButtonPrivate *priv; GtkWidget *label; priv = g_new (EComboButtonPrivate, 1); combo_button->priv = priv; priv->hbox = gtk_hbox_new (FALSE, SPACING); gtk_container_add (GTK_CONTAINER (combo_button), priv->hbox); gtk_widget_show (priv->hbox); priv->label_hbox = gtk_hbox_new (FALSE, SPACING); gtk_box_pack_start (GTK_BOX (priv->hbox), priv->label_hbox, TRUE, TRUE, 0); gtk_widget_show (priv->label_hbox); priv->separator = gtk_vseparator_new (); gtk_box_pack_start (GTK_BOX (priv->hbox), priv->separator, FALSE, TRUE, SPACING); gtk_widget_show (priv->separator); label = gtk_label_new ("TEST!!!"); gtk_container_add (GTK_CONTAINER (priv->label_hbox), label); gtk_widget_show (label); priv->arrow_pixmap = NULL; priv->menu = NULL; priv->menu_popped_up = FALSE; } void e_combo_button_construct (EComboButton *combo_button, GtkMenu *menu) { EComboButtonPrivate *priv; g_return_if_fail (combo_button != NULL); g_return_if_fail (E_IS_COMBO_BUTTON (combo_button)); g_return_if_fail (menu != NULL); g_return_if_fail (GTK_IS_MENU (menu)); priv = combo_button->priv; g_return_if_fail (priv->menu == NULL); priv->menu = menu; gtk_menu_attach_to_widget (menu, GTK_WIDGET (combo_button), menu_detacher); gtk_signal_connect (GTK_OBJECT (menu), "deactivate", GTK_SIGNAL_FUNC (menu_deactivate_callback), combo_button); GTK_WIDGET_UNSET_FLAGS (combo_button, GTK_CAN_FOCUS); } GtkWidget * e_combo_button_new (GtkMenu *menu) { GtkWidget *new; new = gtk_type_new (e_combo_button_get_type ()); e_combo_button_construct (E_COMBO_BUTTON (new), menu); return new; } E_MAKE_TYPE (e_combo_button, "EComboButton", EComboButton, class_init, init, PARENT_TYPE)