+++ /dev/null
-/* GTK - The GIMP Toolkit
- *
- * Copyright (C) 2003 Ricardo Fernandez Pascual
- * Copyright (C) 2004 Paolo Borelli
- * Copyright (C) 2012 Bastien Nocera
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "config.h"
-
-#include "gtkmenubutton.h"
-#include "gtkmenubuttonprivate.h"
-#include "gtkarrow.h"
-
-#include "gtkprivate.h"
-#include "gtkintl.h"
-
-struct _GtkMenuButtonPrivate
-{
- GtkWidget *menu;
- GMenuModel *model;
-
- GtkMenuButtonShowMenuCallback func;
- gpointer user_data;
-
- GtkArrowType arrow_type;
- GtkWidget *parent;
-};
-
-enum
-{
- PROP_0,
- PROP_MENU,
- PROP_MODEL,
- PROP_PARENT,
- PROP_DIRECTION
-};
-
-G_DEFINE_TYPE(GtkMenuButton, gtk_menu_button, GTK_TYPE_TOGGLE_BUTTON)
-
-static void gtk_menu_button_finalize (GObject *object);
-
-static void
-gtk_menu_button_set_property (GObject *object,
- guint property_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- switch (property_id)
- {
- case PROP_MENU:
- gtk_menu_button_set_menu (GTK_MENU_BUTTON (object), g_value_get_object (value));
- break;
- case PROP_MODEL:
- gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (object), g_value_get_object (value));
- break;
- case PROP_PARENT:
- gtk_menu_button_set_parent (GTK_MENU_BUTTON (object), g_value_get_object (value));
- break;
- case PROP_DIRECTION:
- gtk_menu_button_set_direction (GTK_MENU_BUTTON (object), g_value_get_enum (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
- }
-}
-
-static void
-gtk_menu_button_get_property (GObject *object,
- guint property_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkMenuButtonPrivate *priv = GTK_MENU_BUTTON (object)->priv;
-
- switch (property_id)
- {
- case PROP_MENU:
- g_value_set_object (value, G_OBJECT (priv->menu));
- break;
- case PROP_MODEL:
- g_value_set_object (value, G_OBJECT (priv->model));
- break;
- case PROP_PARENT:
- g_value_set_object (value, G_OBJECT (priv->parent));
- break;
- case PROP_DIRECTION:
- g_value_set_enum (value, priv->arrow_type);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
- }
-}
-
-static void
-gtk_menu_button_state_changed (GtkWidget *widget,
- GtkStateType previous_state)
-{
- GtkMenuButton *button = GTK_MENU_BUTTON (widget);
- GtkMenuButtonPrivate *priv = button->priv;
-
- if (!gtk_widget_is_sensitive (widget) && priv->menu)
- {
- gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->menu));
- }
-}
-
-static void
-gtk_menu_button_class_init (GtkMenuButtonClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-
- g_type_class_add_private (klass, sizeof (GtkMenuButtonPrivate));
-
- gobject_class->set_property = gtk_menu_button_set_property;
- gobject_class->get_property = gtk_menu_button_get_property;
- gobject_class->finalize = gtk_menu_button_finalize;
-
- widget_class->state_changed = gtk_menu_button_state_changed;
-
- g_object_class_install_property (gobject_class,
- PROP_MENU,
- g_param_spec_object ("menu",
- P_("menu"),
- P_("The dropdown menu."),
- GTK_TYPE_MENU,
- G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_MODEL,
- g_param_spec_object ("model",
- P_("model"),
- P_("The dropdown menu's model."),
- G_TYPE_MENU_MODEL,
- G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_PARENT,
- g_param_spec_object ("parent",
- P_("parent"),
- P_("The parent widget which the menu should align with."),
- GTK_TYPE_CONTAINER,
- G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class,
- PROP_DIRECTION,
- g_param_spec_enum ("direction",
- P_("direction"),
- P_("The direction the arrow should point."),
- GTK_TYPE_ARROW_TYPE,
- GTK_ARROW_DOWN,
- G_PARAM_READWRITE));
-}
-
-static void
-menu_position_up_func (GtkMenu *menu,
- gint *x,
- gint *y,
- gboolean *push_in,
- GtkMenuButton *menu_button)
-{
- GtkWidget *widget = GTK_WIDGET (menu_button);
- GtkRequisition menu_req;
- GtkTextDirection direction;
- GtkAllocation toggle_allocation;
- GdkRectangle monitor;
- gint monitor_num;
- GdkScreen *screen;
- GdkWindow *window;
-
- gtk_widget_get_preferred_size (GTK_WIDGET (menu),
- &menu_req, NULL);
-
- direction = gtk_widget_get_direction (widget);
- window = gtk_widget_get_window (widget);
-
- screen = gtk_widget_get_screen (GTK_WIDGET (menu));
- monitor_num = gdk_screen_get_monitor_at_window (screen, window);
- if (monitor_num < 0)
- monitor_num = 0;
- gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
-
- gdk_window_get_origin (gtk_button_get_event_window (GTK_BUTTON (menu_button)), x, y);
-
- gtk_widget_get_allocation (widget, &toggle_allocation);
-
- if (direction == GTK_TEXT_DIR_LTR)
- *x += MAX (toggle_allocation.width - menu_req.width, 0);
- else if (menu_req.width > toggle_allocation.width)
- *x -= menu_req.width - toggle_allocation.width;
-
- if (*y - menu_req.height > monitor.y)
- *y -= menu_req.height + toggle_allocation.y;
-
- *push_in = FALSE;
-}
-
-static void
-menu_position_side_func (GtkMenu *menu,
- int *x,
- int *y,
- gboolean *push_in,
- GtkMenuButton *menu_button)
-{
- GtkMenuButtonPrivate *priv = menu_button->priv;
- GtkAllocation toggle_allocation;
- GtkWidget *widget = GTK_WIDGET (menu_button);
- GtkRequisition menu_req;
- GdkRectangle monitor;
- gint monitor_num;
- GdkScreen *screen;
- GdkWindow *window;
-
- gtk_widget_get_preferred_size (GTK_WIDGET (priv->menu),
- &menu_req, NULL);
-
- window = gtk_widget_get_window (widget);
-
- screen = gtk_widget_get_screen (GTK_WIDGET (menu));
- monitor_num = gdk_screen_get_monitor_at_window (screen, window);
- if (monitor_num < 0)
- monitor_num = 0;
- gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
-
- gdk_window_get_origin (gtk_button_get_event_window (GTK_BUTTON (menu_button)), x, y);
-
- gtk_widget_get_allocation (widget, &toggle_allocation);
-
- if (priv->arrow_type == GTK_ARROW_RIGHT)
- *x += toggle_allocation.width;
- else
- *x -= menu_req.width;
-
- if (*y + menu_req.height > monitor.y + monitor.height &&
- *y + toggle_allocation.height - monitor.y > monitor.y + monitor.height - *y)
- *y += toggle_allocation.height - menu_req.height;
-
- *push_in = FALSE;
-}
-
-static void
-menu_position_down_func (GtkMenu *menu,
- int *x,
- int *y,
- gboolean *push_in,
- GtkMenuButton *menu_button)
-{
- GtkMenuButtonPrivate *priv = menu_button->priv;
- GtkWidget *widget = GTK_WIDGET (menu_button);
- GtkRequisition menu_req;
- GtkTextDirection direction;
- GdkRectangle monitor;
- gint monitor_num;
- GdkScreen *screen;
- GdkWindow *window;
- GtkAllocation allocation, arrow_allocation;
-
- gtk_widget_get_preferred_size (GTK_WIDGET (priv->menu),
- &menu_req, NULL);
-
- direction = gtk_widget_get_direction (widget);
- window = gtk_widget_get_window (priv->parent ? priv->parent : widget);
-
- screen = gtk_widget_get_screen (GTK_WIDGET (menu));
- monitor_num = gdk_screen_get_monitor_at_window (screen, window);
- if (monitor_num < 0)
- monitor_num = 0;
- gdk_screen_get_monitor_workarea (screen, monitor_num, &monitor);
-
- gtk_widget_get_allocation (priv->parent ? priv->parent : widget, &allocation);
- gtk_widget_get_allocation (widget, &arrow_allocation);
-
- gdk_window_get_origin (window, x, y);
- *x += allocation.x;
- *y += allocation.y;
-
- if (direction == GTK_TEXT_DIR_LTR)
- *x += MAX (allocation.width - menu_req.width, 0);
- else if (menu_req.width > allocation.width)
- *x -= menu_req.width - allocation.width;
-
- if ((*y + arrow_allocation.height + menu_req.height) <= monitor.y + monitor.height)
- *y += arrow_allocation.height;
- else if ((*y - menu_req.height) >= monitor.y)
- *y -= menu_req.height;
- else if (monitor.y + monitor.height - (*y + arrow_allocation.height) > *y)
- *y += arrow_allocation.height;
- else
- *y -= menu_req.height;
-
- *push_in = FALSE;
-}
-
-static void
-popup_menu (GtkMenuButton *menu_button,
- GdkEventButton *event)
-{
- GtkMenuButtonPrivate *priv = menu_button->priv;
- GtkMenuPositionFunc func;
-
- if (priv->func)
- priv->func (priv->user_data);
-
- if (!priv->menu)
- return;
-
- switch (priv->arrow_type)
- {
- case GTK_ARROW_UP:
- func = (GtkMenuPositionFunc) menu_position_up_func;
- break;
- case GTK_ARROW_LEFT:
- case GTK_ARROW_RIGHT:
- func = (GtkMenuPositionFunc) menu_position_side_func;
- break;
- default:
- func = (GtkMenuPositionFunc) menu_position_down_func;
- break;
- }
-
- gtk_menu_popup (GTK_MENU (priv->menu), NULL, NULL,
- func,
- GTK_WIDGET (menu_button),
- event ? event->button : 0,
- event ? event->time : gtk_get_current_event_time ());
-}
-
-static void
-menu_button_toggled_cb (GtkMenuButton *menu_button)
-{
- GtkMenuButtonPrivate *priv = menu_button->priv;
-
- if (!priv->menu)
- return;
-
- if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (menu_button)) &&
- !gtk_widget_get_visible (GTK_WIDGET (priv->menu)))
- {
- /* we get here only when the menu is activated by a key
- * press, so that we can select the first menu item */
- popup_menu (menu_button, NULL);
- gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->menu), FALSE);
- }
-}
-
-static gboolean
-menu_button_button_press_event_cb (GtkWidget *widget,
- GdkEventButton *event,
- GtkMenuButton *button)
-{
- if (event->button == GDK_BUTTON_PRIMARY)
- {
- popup_menu (button, event);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
-
- return TRUE;
- }
- else
- {
- return FALSE;
- }
-}
-
-static void
-gtk_menu_button_init (GtkMenuButton *menu_button)
-{
- GtkMenuButtonPrivate *priv;
- GtkWidget *arrow;
-
- priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_button, GTK_TYPE_MENU_BUTTON, GtkMenuButtonPrivate);
- menu_button->priv = priv;
- priv->arrow_type = GTK_ARROW_DOWN;
-
- arrow = gtk_arrow_new (priv->arrow_type, GTK_SHADOW_NONE);
- gtk_container_add (GTK_CONTAINER (menu_button), arrow);
- gtk_widget_show (arrow);
-
- gtk_widget_set_sensitive (GTK_WIDGET (menu_button), FALSE);
-
- g_signal_connect (menu_button, "toggled",
- G_CALLBACK (menu_button_toggled_cb), menu_button);
- g_signal_connect (menu_button, "button-press-event",
- G_CALLBACK (menu_button_button_press_event_cb), menu_button);
-}
-
-GtkWidget *
-gtk_menu_button_new (void)
-{
- return g_object_new (GTK_TYPE_MENU_BUTTON, NULL);
-}
-
-/* Callback for the "deactivate" signal on the pop-up menu.
- * This is used so that we unset the state of the toggle button
- * when the pop-up menu disappears.
- */
-static int
-menu_deactivate_cb (GtkMenuShell *menu_shell,
- GtkMenuButton *menu_button)
-{
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button), FALSE);
-
- return TRUE;
-}
-
-static void
-menu_detacher (GtkWidget *widget,
- GtkMenu *menu)
-{
- GtkMenuButtonPrivate *priv = GTK_MENU_BUTTON (widget)->priv;
-
- g_return_if_fail (priv->menu == (GtkWidget *) menu);
-
- priv->menu = NULL;
-}
-
-void
-_gtk_menu_button_set_menu_with_func (GtkMenuButton *menu_button,
- GtkWidget *menu,
- GtkMenuButtonShowMenuCallback func,
- gpointer user_data)
-{
- GtkMenuButtonPrivate *priv;
-
- g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
- g_return_if_fail (GTK_IS_MENU (menu) || menu == NULL);
-
- priv = menu_button->priv;
- priv->func = func;
- priv->user_data = user_data;
-
- if (priv->menu == GTK_WIDGET (menu))
- return;
-
- if (priv->menu)
- {
- if (gtk_widget_get_visible (GTK_WIDGET (priv->menu)))
- gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->menu));
- }
-
- if (priv->menu)
- {
- g_signal_handlers_disconnect_by_func (priv->menu,
- menu_deactivate_cb,
- menu_button);
- gtk_menu_detach (GTK_MENU (priv->menu));
- }
-
- priv->menu = menu;
-
- if (priv->menu)
- {
- gtk_menu_attach_to_widget (GTK_MENU (priv->menu), GTK_WIDGET (menu_button),
- menu_detacher);
-
- gtk_widget_set_sensitive (GTK_WIDGET (menu_button), TRUE);
-
- g_signal_connect (priv->menu, "deactivate",
- G_CALLBACK (menu_deactivate_cb), menu_button);
- }
- else
- {
- gtk_widget_set_sensitive (GTK_WIDGET (menu_button), FALSE);
- }
-
- g_object_notify (G_OBJECT (menu_button), "menu");
-}
-
-void
-gtk_menu_button_set_menu (GtkMenuButton *menu_button,
- GtkWidget *menu)
-{
- _gtk_menu_button_set_menu_with_func (menu_button, menu, NULL, NULL);
-}
-
-void
-gtk_menu_button_set_menu_model (GtkMenuButton *menu_button,
- GMenuModel *menu_model)
-{
- GtkMenuButtonPrivate *priv;
- GtkWidget *menu;
-
- g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
- g_return_if_fail (G_IS_MENU_MODEL (menu_model) || menu_model == NULL);
-
- priv = menu_button->priv;
- g_clear_object (&priv->model);
-
- if (menu_model == NULL)
- {
- gtk_menu_button_set_menu (menu_button, NULL);
- return;
- }
-
- priv->model = g_object_ref (menu_model);
- menu = gtk_menu_new_from_model (menu_model);
- gtk_widget_show_all (menu);
- gtk_menu_button_set_menu (menu_button, menu);
-
- g_object_notify (G_OBJECT (menu_button), "model");
-}
-
-void
-gtk_menu_button_set_parent (GtkMenuButton *menu_button,
- GtkWidget *parent)
-{
- GtkMenuButtonPrivate *priv;
-
- g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
- g_return_if_fail (parent == NULL || gtk_widget_is_ancestor (GTK_WIDGET (menu_button), parent));
-
- priv = menu_button->priv;
- if (priv->parent == parent)
- return;
-
- g_clear_object (&priv->parent);
-
- if (parent == NULL)
- return;
-
- priv->parent = g_object_ref (G_OBJECT (parent));
-
- g_object_notify (G_OBJECT (menu_button), "parent");
-}
-
-void
-gtk_menu_button_set_direction (GtkMenuButton *menu_button,
- GtkArrowType direction)
-{
- GtkMenuButtonPrivate *priv = menu_button->priv;
- GtkWidget *arrow;
-
- g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
-
- if (priv->arrow_type == direction)
- return;
-
- priv->arrow_type = direction;
- gtk_widget_destroy (gtk_bin_get_child (GTK_BIN (menu_button)));
- arrow = gtk_arrow_new (priv->arrow_type, GTK_SHADOW_NONE);
- gtk_container_add (GTK_CONTAINER (menu_button), arrow);
- gtk_widget_show (arrow);
-}
-
-static void
-gtk_menu_button_finalize (GObject *object)
-{
- GtkMenuButtonPrivate *priv = GTK_MENU_BUTTON (object)->priv;
-
- if (priv->menu)
- {
- g_signal_handlers_disconnect_by_func (priv->menu,
- menu_deactivate_cb,
- object);
- gtk_menu_detach (GTK_MENU (priv->menu));
-
- g_signal_handlers_disconnect_by_func (object,
- menu_button_toggled_cb,
- object);
- g_signal_handlers_disconnect_by_func (object,
- menu_button_button_press_event_cb,
- object);
- }
-
- G_OBJECT_CLASS (gtk_menu_button_parent_class)->finalize (object);
-}
projects / ~andy / gtk / commitdiff