256 lines
7.2 KiB
C
256 lines
7.2 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gtkmenu.h"
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#include "gtktearoffmenuitem.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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#define ARROW_SIZE 10
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#define TEAR_LENGTH 5
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#define BORDER_SPACING 3
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static void gtk_tearoff_menu_item_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static gint gtk_tearoff_menu_item_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void gtk_tearoff_menu_item_activate (GtkMenuItem *menu_item);
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static void gtk_tearoff_menu_item_parent_set (GtkWidget *widget,
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GtkWidget *previous);
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G_DEFINE_TYPE (GtkTearoffMenuItem, gtk_tearoff_menu_item, GTK_TYPE_MENU_ITEM)
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GtkWidget*
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gtk_tearoff_menu_item_new (void)
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{
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return g_object_new (GTK_TYPE_TEAROFF_MENU_ITEM, NULL);
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}
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static void
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gtk_tearoff_menu_item_class_init (GtkTearoffMenuItemClass *klass)
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{
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GtkWidgetClass *widget_class;
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GtkMenuItemClass *menu_item_class;
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widget_class = (GtkWidgetClass*) klass;
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menu_item_class = (GtkMenuItemClass*) klass;
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widget_class->expose_event = gtk_tearoff_menu_item_expose;
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widget_class->size_request = gtk_tearoff_menu_item_size_request;
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widget_class->parent_set = gtk_tearoff_menu_item_parent_set;
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menu_item_class->activate = gtk_tearoff_menu_item_activate;
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}
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static void
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gtk_tearoff_menu_item_init (GtkTearoffMenuItem *tearoff_menu_item)
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{
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tearoff_menu_item->torn_off = FALSE;
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}
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static void
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gtk_tearoff_menu_item_size_request (GtkWidget *widget,
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GtkRequisition *requisition)
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{
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requisition->width = (GTK_CONTAINER (widget)->border_width +
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widget->style->xthickness +
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BORDER_SPACING) * 2;
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requisition->height = (GTK_CONTAINER (widget)->border_width +
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widget->style->ythickness) * 2;
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if (GTK_IS_MENU (widget->parent) && GTK_MENU (widget->parent)->torn_off)
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{
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requisition->height += ARROW_SIZE;
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}
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else
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{
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requisition->height += widget->style->ythickness + 4;
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}
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}
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static void
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gtk_tearoff_menu_item_paint (GtkWidget *widget,
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GdkRectangle *area)
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{
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GtkMenuItem *menu_item;
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GtkShadowType shadow_type;
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gint width, height;
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gint x, y;
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gint right_max;
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GtkArrowType arrow_type;
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GtkTextDirection direction;
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if (gtk_widget_is_drawable (widget))
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{
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menu_item = GTK_MENU_ITEM (widget);
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direction = gtk_widget_get_direction (widget);
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x = widget->allocation.x + GTK_CONTAINER (menu_item)->border_width;
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y = widget->allocation.y + GTK_CONTAINER (menu_item)->border_width;
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width = widget->allocation.width - GTK_CONTAINER (menu_item)->border_width * 2;
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height = widget->allocation.height - GTK_CONTAINER (menu_item)->border_width * 2;
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right_max = x + width;
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if (widget->state == GTK_STATE_PRELIGHT)
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{
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gint selected_shadow_type;
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gtk_widget_style_get (widget,
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"selected-shadow-type", &selected_shadow_type,
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NULL);
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gtk_paint_box (widget->style,
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widget->window,
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GTK_STATE_PRELIGHT,
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selected_shadow_type,
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area, widget, "menuitem",
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x, y, width, height);
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}
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else
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gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);
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if (GTK_IS_MENU (widget->parent) && GTK_MENU (widget->parent)->torn_off)
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{
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gint arrow_x;
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if (widget->state == GTK_STATE_PRELIGHT)
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shadow_type = GTK_SHADOW_IN;
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else
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shadow_type = GTK_SHADOW_OUT;
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if (menu_item->toggle_size > ARROW_SIZE)
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{
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if (direction == GTK_TEXT_DIR_LTR) {
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arrow_x = x + (menu_item->toggle_size - ARROW_SIZE)/2;
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arrow_type = GTK_ARROW_LEFT;
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}
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else {
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arrow_x = x + width - menu_item->toggle_size + (menu_item->toggle_size - ARROW_SIZE)/2;
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arrow_type = GTK_ARROW_RIGHT;
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}
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x += menu_item->toggle_size + BORDER_SPACING;
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}
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else
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{
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if (direction == GTK_TEXT_DIR_LTR) {
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arrow_x = ARROW_SIZE / 2;
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arrow_type = GTK_ARROW_LEFT;
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}
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else {
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arrow_x = x + width - 2 * ARROW_SIZE + ARROW_SIZE / 2;
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arrow_type = GTK_ARROW_RIGHT;
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}
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x += 2 * ARROW_SIZE;
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}
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gtk_paint_arrow (widget->style, widget->window,
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widget->state, shadow_type,
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NULL, widget, "tearoffmenuitem",
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arrow_type, FALSE,
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arrow_x, y + height / 2 - 5,
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ARROW_SIZE, ARROW_SIZE);
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}
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while (x < right_max)
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{
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gint x1, x2;
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if (direction == GTK_TEXT_DIR_LTR) {
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x1 = x;
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x2 = MIN (x + TEAR_LENGTH, right_max);
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}
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else {
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x1 = right_max - x;
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x2 = MAX (right_max - x - TEAR_LENGTH, 0);
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}
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gtk_paint_hline (widget->style, widget->window, GTK_STATE_NORMAL,
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NULL, widget, "tearoffmenuitem",
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x1, x2, y + (height - widget->style->ythickness) / 2);
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x += 2 * TEAR_LENGTH;
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}
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}
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}
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static gint
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gtk_tearoff_menu_item_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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gtk_tearoff_menu_item_paint (widget, &event->area);
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return FALSE;
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}
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static void
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gtk_tearoff_menu_item_activate (GtkMenuItem *menu_item)
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{
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if (GTK_IS_MENU (GTK_WIDGET (menu_item)->parent))
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{
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GtkMenu *menu = GTK_MENU (GTK_WIDGET (menu_item)->parent);
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gtk_widget_queue_resize (GTK_WIDGET (menu_item));
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gtk_menu_set_tearoff_state (GTK_MENU (GTK_WIDGET (menu_item)->parent),
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!menu->torn_off);
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}
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}
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static void
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tearoff_state_changed (GtkMenu *menu,
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GParamSpec *pspec,
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gpointer data)
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{
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GtkTearoffMenuItem *tearoff_menu_item = GTK_TEAROFF_MENU_ITEM (data);
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tearoff_menu_item->torn_off = gtk_menu_get_tearoff_state (menu);
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}
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static void
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gtk_tearoff_menu_item_parent_set (GtkWidget *widget,
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GtkWidget *previous)
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{
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GtkTearoffMenuItem *tearoff_menu_item = GTK_TEAROFF_MENU_ITEM (widget);
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GtkMenu *menu = GTK_IS_MENU (widget->parent) ? GTK_MENU (widget->parent) : NULL;
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if (previous)
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g_signal_handlers_disconnect_by_func (previous,
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tearoff_state_changed,
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tearoff_menu_item);
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if (menu)
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{
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tearoff_menu_item->torn_off = gtk_menu_get_tearoff_state (menu);
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g_signal_connect (menu, "notify::tearoff-state",
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G_CALLBACK (tearoff_state_changed),
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tearoff_menu_item);
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}
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}
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#define __GTK_TEAROFF_MENU_ITEM_C__
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#include "gtkaliasdef.c"
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