forked from AuroraMiddleware/gtk
526 lines
20 KiB
C
526 lines
20 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, see <http://www.gnu.org/licenses/>.
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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 "gtkcheckbuttonprivate.h"
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#include "gtkbuttonprivate.h"
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#include "gtklabel.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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#include "gtkrender.h"
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#include "gtkwidgetprivate.h"
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#include "gtkbuiltiniconprivate.h"
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#include "gtkcssnodeprivate.h"
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#include "gtkboxgadgetprivate.h"
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#include "gtkcontainerprivate.h"
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#include "gtkstylecontextprivate.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkradiobutton.h"
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/**
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* SECTION:gtkcheckbutton
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* @Short_description: Create widgets with a discrete toggle button
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* @Title: GtkCheckButton
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* @See_also: #GtkCheckMenuItem, #GtkButton, #GtkToggleButton, #GtkRadioButton
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*
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* A #GtkCheckButton places a discrete #GtkToggleButton next to a widget,
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* (usually a #GtkLabel). See the section on #GtkToggleButton widgets for
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* more information about toggle/check buttons.
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*
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* The important signal ( #GtkToggleButton::toggled ) is also inherited from
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* #GtkToggleButton.
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*
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* # CSS nodes
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*
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* |[<!-- language="plain" -->
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* checkbutton
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* ├── check
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* ╰── <child>
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* ]|
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*
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* A GtkCheckButton with indicator (see gtk_toggle_button_set_mode()) has a
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* main CSS node with name checkbutton and a subnode with name check.
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*
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* |[<!-- language="plain" -->
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* button.check
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* ├── check
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* ╰── <child>
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* ]|
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*
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* A GtkCheckButton without indicator changes the name of its main node
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* to button and adds a .check style class to it. The subnode is invisible
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* in this case.
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*/
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static void gtk_check_button_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural);
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static void gtk_check_button_get_preferred_width_for_height (GtkWidget *widget,
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gint height,
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gint *minimum,
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gint *natural);
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static void gtk_check_button_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural);
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static void gtk_check_button_get_preferred_height_for_width (GtkWidget *widget,
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gint width,
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gint *minimum,
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gint *natural);
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static void gtk_check_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
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gint width,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline);
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static void gtk_check_button_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static GskRenderNode *gtk_check_button_get_render_node (GtkWidget *widget,
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GskRenderer *renderer);
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typedef struct {
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GtkCssGadget *gadget;
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GtkCssGadget *indicator_gadget;
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} GtkCheckButtonPrivate;
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G_DEFINE_TYPE_WITH_PRIVATE (GtkCheckButton, gtk_check_button, GTK_TYPE_TOGGLE_BUTTON)
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static void
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gtk_check_button_update_node_state (GtkWidget *widget)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkCssImageBuiltinType image_type;
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GtkStateFlags state;
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state = gtk_widget_get_state_flags (widget);
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/* XXX: This is somewhat awkward here, but there's no better
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* way to update the icon
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*/
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if (state & GTK_STATE_FLAG_CHECKED)
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image_type = GTK_IS_RADIO_BUTTON (widget) ? GTK_CSS_IMAGE_BUILTIN_OPTION : GTK_CSS_IMAGE_BUILTIN_CHECK;
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else if (state & GTK_STATE_FLAG_INCONSISTENT)
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image_type = GTK_IS_RADIO_BUTTON (widget) ? GTK_CSS_IMAGE_BUILTIN_OPTION_INCONSISTENT : GTK_CSS_IMAGE_BUILTIN_CHECK_INCONSISTENT;
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else
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image_type = GTK_CSS_IMAGE_BUILTIN_NONE;
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gtk_builtin_icon_set_image (GTK_BUILTIN_ICON (priv->indicator_gadget), image_type);
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gtk_css_gadget_set_state (priv->indicator_gadget, state);
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}
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static void
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gtk_check_button_state_flags_changed (GtkWidget *widget,
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GtkStateFlags previous_state_flags)
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{
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gtk_check_button_update_node_state (widget);
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GTK_WIDGET_CLASS (gtk_check_button_parent_class)->state_flags_changed (widget, previous_state_flags);
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}
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static void
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gtk_check_button_direction_changed (GtkWidget *widget,
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GtkTextDirection previous_direction)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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gtk_box_gadget_reverse_children (GTK_BOX_GADGET (priv->gadget));
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gtk_box_gadget_set_allocate_reverse (GTK_BOX_GADGET (priv->gadget),
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gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
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gtk_box_gadget_set_align_reverse (GTK_BOX_GADGET (priv->gadget),
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gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
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GTK_WIDGET_CLASS (gtk_check_button_parent_class)->direction_changed (widget, previous_direction);
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}
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static void
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gtk_check_button_finalize (GObject *object)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (object));
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g_clear_object (&priv->gadget);
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g_clear_object (&priv->indicator_gadget);
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G_OBJECT_CLASS (gtk_check_button_parent_class)->finalize (object);
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}
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static void
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gtk_check_button_add (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (container));
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int pos;
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GTK_CONTAINER_CLASS (gtk_check_button_parent_class)->add (container, widget);
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pos = gtk_widget_get_direction (GTK_WIDGET (container)) == GTK_TEXT_DIR_RTL ? 0 : 1;
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gtk_box_gadget_insert_widget (GTK_BOX_GADGET (priv->gadget), pos, widget);
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gtk_box_gadget_set_gadget_expand (GTK_BOX_GADGET (priv->gadget), G_OBJECT (widget), TRUE);
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}
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static void
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gtk_check_button_remove (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (container));
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gtk_box_gadget_remove_widget (GTK_BOX_GADGET (priv->gadget), widget);
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GTK_CONTAINER_CLASS (gtk_check_button_parent_class)->remove (container, widget);
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}
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static void
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gtk_check_button_class_init (GtkCheckButtonClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
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object_class->finalize = gtk_check_button_finalize;
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widget_class->get_preferred_width = gtk_check_button_get_preferred_width;
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widget_class->get_preferred_width_for_height = gtk_check_button_get_preferred_width_for_height;
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widget_class->get_preferred_height = gtk_check_button_get_preferred_height;
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widget_class->get_preferred_height_for_width = gtk_check_button_get_preferred_height_for_width;
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widget_class->get_preferred_height_and_baseline_for_width = gtk_check_button_get_preferred_height_and_baseline_for_width;
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widget_class->size_allocate = gtk_check_button_size_allocate;
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widget_class->get_render_node = gtk_check_button_get_render_node;
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widget_class->state_flags_changed = gtk_check_button_state_flags_changed;
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widget_class->direction_changed = gtk_check_button_direction_changed;
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container_class->add = gtk_check_button_add;
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container_class->remove = gtk_check_button_remove;
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gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_CHECK_BOX);
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gtk_widget_class_set_css_name (widget_class, "checkbutton");
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}
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static void
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draw_indicator_changed (GObject *object,
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GParamSpec *pspec,
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gpointer user_data)
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{
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GtkButton *button = GTK_BUTTON (object);
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (button));
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GtkCssNode *widget_node;
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GtkCssNode *indicator_node;
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widget_node = gtk_widget_get_css_node (GTK_WIDGET (button));
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indicator_node = gtk_css_gadget_get_node (priv->indicator_gadget);
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (button)))
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{
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gtk_css_node_set_visible (indicator_node, TRUE);
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if (GTK_IS_RADIO_BUTTON (button))
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{
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gtk_css_node_remove_class (widget_node, g_quark_from_static_string ("radio"));
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gtk_css_node_set_name (widget_node, I_("radiobutton"));
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}
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else if (GTK_IS_CHECK_BUTTON (button))
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{
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gtk_css_node_remove_class (widget_node, g_quark_from_static_string ("check"));
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gtk_css_node_set_name (widget_node, I_("checkbutton"));
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}
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}
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else
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{
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gtk_css_node_set_visible (indicator_node, FALSE);
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if (GTK_IS_RADIO_BUTTON (button))
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{
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gtk_css_node_add_class (widget_node, g_quark_from_static_string ("radio"));
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gtk_css_node_set_name (widget_node, I_("button"));
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}
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else if (GTK_IS_CHECK_BUTTON (button))
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{
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gtk_css_node_add_class (widget_node, g_quark_from_static_string ("check"));
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gtk_css_node_set_name (widget_node, I_("button"));
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}
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}
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}
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static void
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gtk_check_button_init (GtkCheckButton *check_button)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (check_button);
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GtkCssNode *widget_node;
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gtk_widget_set_receives_default (GTK_WIDGET (check_button), FALSE);
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g_signal_connect (check_button, "notify::draw-indicator", G_CALLBACK (draw_indicator_changed), NULL);
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gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (check_button), TRUE);
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gtk_style_context_remove_class (gtk_widget_get_style_context (GTK_WIDGET (check_button)), "toggle");
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widget_node = gtk_widget_get_css_node (GTK_WIDGET (check_button));
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priv->gadget = gtk_box_gadget_new_for_node (widget_node, GTK_WIDGET (check_button));
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gtk_box_gadget_set_orientation (GTK_BOX_GADGET (priv->gadget), GTK_ORIENTATION_HORIZONTAL);
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gtk_box_gadget_set_draw_focus (GTK_BOX_GADGET (priv->gadget), TRUE);
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priv->indicator_gadget = gtk_builtin_icon_new ("check",
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GTK_WIDGET (check_button),
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priv->gadget,
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NULL);
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gtk_box_gadget_insert_gadget (GTK_BOX_GADGET (priv->gadget), 0, priv->indicator_gadget, FALSE, GTK_ALIGN_BASELINE);
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gtk_check_button_update_node_state (GTK_WIDGET (check_button));
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}
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/**
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* gtk_check_button_new:
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*
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* Creates a new #GtkCheckButton.
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*
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* Returns: a #GtkWidget.
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*/
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GtkWidget*
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gtk_check_button_new (void)
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{
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return g_object_new (GTK_TYPE_CHECK_BUTTON, NULL);
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}
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/**
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* gtk_check_button_new_with_label:
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* @label: the text for the check button.
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*
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* Creates a new #GtkCheckButton with a #GtkLabel to the right of it.
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*
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* Returns: a #GtkWidget.
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*/
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GtkWidget*
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gtk_check_button_new_with_label (const gchar *label)
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{
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return g_object_new (GTK_TYPE_CHECK_BUTTON, "label", label, NULL);
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}
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/**
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* gtk_check_button_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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*
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* Creates a new #GtkCheckButton 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 check button.
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*
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* Returns: a new #GtkCheckButton
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*/
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GtkWidget*
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gtk_check_button_new_with_mnemonic (const gchar *label)
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{
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return g_object_new (GTK_TYPE_CHECK_BUTTON,
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"label", label,
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"use-underline", TRUE,
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NULL);
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}
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static void
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gtk_check_button_get_preferred_width_for_height (GtkWidget *widget,
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gint height,
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gint *minimum,
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gint *natural)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkCssGadget *gadget;
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
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gadget = priv->gadget;
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else
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gadget = GTK_BUTTON (widget)->priv->gadget;
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gtk_css_gadget_get_preferred_size (gadget,
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GTK_ORIENTATION_HORIZONTAL,
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height,
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minimum, natural,
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NULL, NULL);
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}
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static void
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gtk_check_button_get_preferred_width (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkCssGadget *gadget;
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
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gadget = priv->gadget;
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else
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gadget = GTK_BUTTON (widget)->priv->gadget;
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gtk_css_gadget_get_preferred_size (gadget,
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GTK_ORIENTATION_HORIZONTAL,
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-1,
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minimum, natural,
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NULL, NULL);
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}
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static void
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gtk_check_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
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gint width,
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gint *minimum,
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gint *natural,
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gint *minimum_baseline,
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gint *natural_baseline)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkCssGadget *gadget;
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
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gadget = priv->gadget;
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else
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gadget = GTK_BUTTON (widget)->priv->gadget;
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gtk_css_gadget_get_preferred_size (gadget,
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GTK_ORIENTATION_VERTICAL,
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width,
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minimum, natural,
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minimum_baseline, natural_baseline);
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}
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static void
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gtk_check_button_get_preferred_height_for_width (GtkWidget *widget,
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gint width,
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gint *minimum,
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gint *natural)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkCssGadget *gadget;
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
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gadget = priv->gadget;
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else
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gadget = GTK_BUTTON (widget)->priv->gadget;
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gtk_css_gadget_get_preferred_size (gadget,
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GTK_ORIENTATION_VERTICAL,
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width,
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minimum, natural,
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NULL, NULL);
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}
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static void
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gtk_check_button_get_preferred_height (GtkWidget *widget,
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gint *minimum,
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gint *natural)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkCssGadget *gadget;
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
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gadget = priv->gadget;
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else
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gadget = GTK_BUTTON (widget)->priv->gadget;
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gtk_css_gadget_get_preferred_size (gadget,
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GTK_ORIENTATION_VERTICAL,
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-1,
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minimum, natural,
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NULL, NULL);
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}
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static void
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gtk_check_button_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
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GtkButton *button = GTK_BUTTON (widget);
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GtkCssGadget *gadget;
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GdkRectangle clip;
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PangoContext *pango_context;
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PangoFontMetrics *metrics;
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if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = button->priv->gadget;
|
|
|
|
gtk_widget_set_allocation (widget, allocation);
|
|
gtk_css_gadget_allocate (gadget,
|
|
allocation,
|
|
gtk_widget_get_allocated_baseline (widget),
|
|
&clip);
|
|
|
|
gtk_widget_set_clip (widget, &clip);
|
|
|
|
pango_context = gtk_widget_get_pango_context (widget);
|
|
metrics = pango_context_get_metrics (pango_context,
|
|
pango_context_get_font_description (pango_context),
|
|
pango_context_get_language (pango_context));
|
|
button->priv->baseline_align =
|
|
(double)pango_font_metrics_get_ascent (metrics) /
|
|
(pango_font_metrics_get_ascent (metrics) + pango_font_metrics_get_descent (metrics));
|
|
pango_font_metrics_unref (metrics);
|
|
|
|
if (gtk_widget_get_realized (widget))
|
|
{
|
|
GtkAllocation border_allocation;
|
|
gtk_css_gadget_get_border_allocation (gadget, &border_allocation, NULL);
|
|
gdk_window_move_resize (GTK_BUTTON (widget)->priv->event_window,
|
|
border_allocation.x,
|
|
border_allocation.y,
|
|
border_allocation.width,
|
|
border_allocation.height);
|
|
}
|
|
}
|
|
|
|
static GskRenderNode *
|
|
gtk_check_button_get_render_node (GtkWidget *widget,
|
|
GskRenderer *renderer)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GskRenderNode *res;
|
|
GskRenderNode *node;
|
|
|
|
if (!gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
return GTK_WIDGET_CLASS (gtk_check_button_parent_class)->get_render_node (widget, renderer);
|
|
|
|
res = gtk_css_gadget_get_render_node (priv->gadget,
|
|
renderer,
|
|
gtk_widget_has_visible_focus (widget));
|
|
|
|
if (res == NULL)
|
|
return NULL;
|
|
|
|
node = gtk_css_gadget_get_render_node (priv->indicator_gadget,
|
|
renderer,
|
|
FALSE);
|
|
gsk_render_node_append_child (res, node);
|
|
gsk_render_node_unref (node);
|
|
|
|
gtk_container_propagate_render_node (GTK_CONTAINER (widget), renderer, res);
|
|
|
|
return res;
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_check_button_get_indicator_node (GtkCheckButton *check_button)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (check_button);
|
|
|
|
return gtk_css_gadget_get_node (priv->indicator_gadget);
|
|
}
|