forked from AuroraMiddleware/gtk
4e2b60ac4d
Wed Jul 18 19:28:46 2001 Owen Taylor <otaylor@redhat.com> * gtk/*.c: Patch from Matthias Clasen to remove remove all instances of g_return_if_fail (foo != NULL); that are immediately before a g_return_if_fail (GTK_IS_FOO (foo)); since the second check catches the NULL anyways.
452 lines
14 KiB
C
452 lines
14 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 1997-2001. 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 "gtkcheckmenuitem.h"
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#include "gtkaccellabel.h"
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#include "gtksignal.h"
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#include "gtkintl.h"
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#define CHECK_TOGGLE_SIZE 12
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enum {
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TOGGLED,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_ACTIVE,
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PROP_INCONSISTENT
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};
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static void gtk_check_menu_item_class_init (GtkCheckMenuItemClass *klass);
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static void gtk_check_menu_item_init (GtkCheckMenuItem *check_menu_item);
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static gint gtk_check_menu_item_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void gtk_check_menu_item_activate (GtkMenuItem *menu_item);
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static void gtk_check_menu_item_toggle_size_request (GtkMenuItem *menu_item,
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gint *requisition);
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static void gtk_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
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GdkRectangle *area);
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static void gtk_real_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
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GdkRectangle *area);
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static void gtk_check_menu_item_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_check_menu_item_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static GtkMenuItemClass *parent_class = NULL;
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static guint check_menu_item_signals[LAST_SIGNAL] = { 0 };
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GtkType
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gtk_check_menu_item_get_type (void)
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{
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static GtkType check_menu_item_type = 0;
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if (!check_menu_item_type)
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{
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static const GtkTypeInfo check_menu_item_info =
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{
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"GtkCheckMenuItem",
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sizeof (GtkCheckMenuItem),
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sizeof (GtkCheckMenuItemClass),
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(GtkClassInitFunc) gtk_check_menu_item_class_init,
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(GtkObjectInitFunc) gtk_check_menu_item_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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check_menu_item_type = gtk_type_unique (GTK_TYPE_MENU_ITEM, &check_menu_item_info);
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}
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return check_menu_item_type;
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}
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static void
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gtk_check_menu_item_class_init (GtkCheckMenuItemClass *klass)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkMenuItemClass *menu_item_class;
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object_class = (GtkObjectClass*) klass;
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widget_class = (GtkWidgetClass*) klass;
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menu_item_class = (GtkMenuItemClass*) klass;
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parent_class = gtk_type_class (GTK_TYPE_MENU_ITEM);
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G_OBJECT_CLASS(object_class)->set_property = gtk_check_menu_item_set_property;
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G_OBJECT_CLASS(object_class)->get_property = gtk_check_menu_item_get_property;
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g_object_class_install_property (G_OBJECT_CLASS (object_class),
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PROP_ACTIVE,
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g_param_spec_boolean ("active",
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_("Active"),
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_("Whether the menu item is checked."),
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FALSE,
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G_PARAM_READABLE | G_PARAM_WRITABLE));
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g_object_class_install_property (G_OBJECT_CLASS (object_class),
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PROP_INCONSISTENT,
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g_param_spec_boolean ("inconsistent",
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_("Inconsistent"),
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_("Whether to display an \"inconsistent\" state."),
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FALSE,
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G_PARAM_READABLE | G_PARAM_WRITABLE));
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widget_class->expose_event = gtk_check_menu_item_expose;
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menu_item_class->activate = gtk_check_menu_item_activate;
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menu_item_class->hide_on_activate = FALSE;
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menu_item_class->toggle_size_request = gtk_check_menu_item_toggle_size_request;
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klass->toggled = NULL;
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klass->draw_indicator = gtk_real_check_menu_item_draw_indicator;
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check_menu_item_signals[TOGGLED] =
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gtk_signal_new ("toggled",
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GTK_RUN_FIRST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkCheckMenuItemClass, toggled),
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gtk_marshal_VOID__VOID,
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GTK_TYPE_NONE, 0);
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}
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GtkWidget*
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gtk_check_menu_item_new (void)
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{
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return GTK_WIDGET (gtk_type_new (GTK_TYPE_CHECK_MENU_ITEM));
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}
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GtkWidget*
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gtk_check_menu_item_new_with_label (const gchar *label)
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{
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GtkWidget *check_menu_item;
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GtkWidget *accel_label;
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check_menu_item = gtk_check_menu_item_new ();
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accel_label = gtk_accel_label_new (label);
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gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (check_menu_item), accel_label);
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gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), check_menu_item);
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gtk_widget_show (accel_label);
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return check_menu_item;
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}
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/**
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* gtk_check_menu_item_new_with_mnemonic:
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* @label: The text of the button, with an underscore in front of the
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* mnemonic character
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* @returns: a new #GtkCheckMenuItem
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*
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* Creates a new #GtkCheckMenuItem containing a label. The label
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* will be created using gtk_label_new_with_mnemonic(), so underscores
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* in @label indicate the mnemonic for the menu item.
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**/
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GtkWidget*
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gtk_check_menu_item_new_with_mnemonic (const gchar *label)
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{
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GtkWidget *check_menu_item;
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GtkWidget *accel_label;
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check_menu_item = gtk_check_menu_item_new ();
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accel_label = gtk_type_new (GTK_TYPE_ACCEL_LABEL);
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gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
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gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (check_menu_item), accel_label);
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gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), check_menu_item);
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gtk_widget_show (accel_label);
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return check_menu_item;
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}
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void
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gtk_check_menu_item_set_active (GtkCheckMenuItem *check_menu_item,
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gboolean is_active)
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{
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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
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is_active = is_active != 0;
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if (check_menu_item->active != is_active)
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{
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gtk_menu_item_activate (GTK_MENU_ITEM (check_menu_item));
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g_object_notify (G_OBJECT(check_menu_item), "active");
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}
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}
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/**
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* gtk_check_menu_item_get_active:
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* @check_menu_item: a #GtkCheckMenuItem
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*
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* Returns whether the check menu item is active. See
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* gtk_check_menu_item_set_active ().
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*
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* Return value: %TRUE if the menu item is checked.
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*/
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gboolean
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gtk_check_menu_item_get_active (GtkCheckMenuItem *check_menu_item)
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{
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g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item), FALSE);
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return check_menu_item->active;
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}
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static void
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gtk_check_menu_item_toggle_size_request (GtkMenuItem *menu_item,
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gint *requisition)
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{
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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
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*requisition = CHECK_TOGGLE_SIZE;
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}
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void
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gtk_check_menu_item_set_show_toggle (GtkCheckMenuItem *menu_item,
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gboolean always)
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{
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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
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#if 0
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menu_item->always_show_toggle = always != FALSE;
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#endif
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}
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void
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gtk_check_menu_item_toggled (GtkCheckMenuItem *check_menu_item)
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{
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gtk_signal_emit (GTK_OBJECT (check_menu_item), check_menu_item_signals[TOGGLED]);
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}
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/**
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* gtk_check_menu_item_set_inconsistent:
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* @check_menu_item: a #GtkCheckMenuItem
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* @setting: %TRUE to display an "inconsistent" third state check
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*
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* If the user has selected a range of elements (such as some text or
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* spreadsheet cells) that are affected by a boolean setting, and the
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* current values in that range are inconsistent, you may want to
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* display the check in an "in between" state. This function turns on
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* "in between" display. Normally you would turn off the inconsistent
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* state again if the user explicitly selects a setting. This has to be
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* done manually, gtk_check_menu_item_set_inconsistent() only affects
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* visual appearance, it doesn't affect the semantics of the widget.
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*
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**/
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void
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gtk_check_menu_item_set_inconsistent (GtkCheckMenuItem *check_menu_item,
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gboolean setting)
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{
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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
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setting = setting != FALSE;
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if (setting != check_menu_item->inconsistent)
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{
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check_menu_item->inconsistent = setting;
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gtk_widget_queue_draw (GTK_WIDGET (check_menu_item));
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g_object_notify (G_OBJECT (check_menu_item), "inconsistent");
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}
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}
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/**
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* gtk_check_menu_item_get_inconsistent:
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* @check_menu_item: a #GtkCheckMenuItem
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*
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* Retrieves the value set by gtk_check_menu_item_set_inconsistent().
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*
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* Return value: %TRUE if inconsistent
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**/
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gboolean
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gtk_check_menu_item_get_inconsistent (GtkCheckMenuItem *check_menu_item)
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{
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g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item), FALSE);
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return check_menu_item->inconsistent;
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}
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static void
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gtk_check_menu_item_init (GtkCheckMenuItem *check_menu_item)
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{
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check_menu_item->active = FALSE;
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check_menu_item->always_show_toggle = TRUE;
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}
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static gint
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gtk_check_menu_item_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_CHECK_MENU_ITEM (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (GTK_WIDGET_CLASS (parent_class)->expose_event)
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(* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
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gtk_check_menu_item_draw_indicator (GTK_CHECK_MENU_ITEM (widget), &event->area);
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return FALSE;
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}
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static void
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gtk_check_menu_item_activate (GtkMenuItem *menu_item)
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{
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GtkCheckMenuItem *check_menu_item;
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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (menu_item));
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check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
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check_menu_item->active = !check_menu_item->active;
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gtk_check_menu_item_toggled (check_menu_item);
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gtk_widget_queue_draw (GTK_WIDGET (check_menu_item));
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}
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static void
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gtk_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
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GdkRectangle *area)
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{
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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
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g_return_if_fail (GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item) != NULL);
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if (GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->draw_indicator)
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(* GTK_CHECK_MENU_ITEM_GET_CLASS (check_menu_item)->draw_indicator) (check_menu_item, area);
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}
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static void
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gtk_real_check_menu_item_draw_indicator (GtkCheckMenuItem *check_menu_item,
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GdkRectangle *area)
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{
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GtkWidget *widget;
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GtkStateType state_type;
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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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g_return_if_fail (GTK_IS_CHECK_MENU_ITEM (check_menu_item));
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if (GTK_WIDGET_DRAWABLE (check_menu_item))
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{
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widget = GTK_WIDGET (check_menu_item);
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width = 8;
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height = 8;
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x = (GTK_CONTAINER (check_menu_item)->border_width +
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widget->style->xthickness + 2);
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y = (widget->allocation.height - height) / 2;
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if (check_menu_item->active ||
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check_menu_item->always_show_toggle ||
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(GTK_WIDGET_STATE (check_menu_item) == GTK_STATE_PRELIGHT))
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{
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state_type = GTK_WIDGET_STATE (widget);
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if (check_menu_item->always_show_toggle)
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{
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shadow_type = GTK_SHADOW_OUT;
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if (check_menu_item->active)
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shadow_type = GTK_SHADOW_IN;
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}
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else
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{
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shadow_type = GTK_SHADOW_IN;
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if (check_menu_item->active &&
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(state_type == GTK_STATE_PRELIGHT))
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shadow_type = GTK_SHADOW_OUT;
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}
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if (check_menu_item->inconsistent)
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{
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shadow_type = GTK_SHADOW_ETCHED_IN;
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if (state_type == GTK_STATE_ACTIVE)
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state_type = GTK_STATE_NORMAL;
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}
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gtk_paint_check (widget->style, widget->window,
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state_type, shadow_type,
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area, widget, "check",
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x, y, width, height);
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}
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}
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}
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static void
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gtk_check_menu_item_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkCheckMenuItem *checkitem = GTK_CHECK_MENU_ITEM (object);
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switch (prop_id)
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{
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case PROP_ACTIVE:
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g_value_set_boolean (value, checkitem->active);
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break;
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case PROP_INCONSISTENT:
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g_value_set_boolean (value, checkitem->inconsistent);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_check_menu_item_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkCheckMenuItem *checkitem = GTK_CHECK_MENU_ITEM (object);
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switch (prop_id)
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{
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case PROP_ACTIVE:
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gtk_check_menu_item_set_active (checkitem, g_value_get_boolean (value));
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break;
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case PROP_INCONSISTENT:
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gtk_check_menu_item_set_inconsistent (checkitem, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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