forked from AuroraMiddleware/gtk
517 lines
19 KiB
C
517 lines
19 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gtkcheckbutton.h"
|
|
|
|
#include "gtkbuttonprivate.h"
|
|
#include "gtklabel.h"
|
|
|
|
#include "gtkintl.h"
|
|
#include "gtkprivate.h"
|
|
#include "gtkrender.h"
|
|
#include "gtkwidgetprivate.h"
|
|
#include "gtkbuiltiniconprivate.h"
|
|
#include "gtkcssnodeprivate.h"
|
|
#include "gtkboxgadgetprivate.h"
|
|
#include "gtkcontainerprivate.h"
|
|
#include "gtkstylecontextprivate.h"
|
|
#include "gtkcssnumbervalueprivate.h"
|
|
#include "gtkradiobutton.h"
|
|
|
|
|
|
/**
|
|
* SECTION:gtkcheckbutton
|
|
* @Short_description: Create widgets with a discrete toggle button
|
|
* @Title: GtkCheckButton
|
|
* @See_also: #GtkCheckMenuItem, #GtkButton, #GtkToggleButton, #GtkRadioButton
|
|
*
|
|
* A #GtkCheckButton places a discrete #GtkToggleButton next to a widget,
|
|
* (usually a #GtkLabel). See the section on #GtkToggleButton widgets for
|
|
* more information about toggle/check buttons.
|
|
*
|
|
* The important signal ( #GtkToggleButton::toggled ) is also inherited from
|
|
* #GtkToggleButton.
|
|
*
|
|
* # CSS nodes
|
|
*
|
|
* |[<!-- language="plain" -->
|
|
* checkbutton
|
|
* ├── check
|
|
* ╰── <child>
|
|
* ]|
|
|
*
|
|
* A GtkCheckButton with indicator (see gtk_toggle_button_set_mode()) has a
|
|
* main CSS node with name checkbutton and a subnode with name check.
|
|
*
|
|
* |[<!-- language="plain" -->
|
|
* button.check
|
|
* ├── check
|
|
* ╰── <child>
|
|
* ]|
|
|
*
|
|
* A GtkCheckButton without indicator changes the name of its main node
|
|
* to button and adds a .check style class to it. The subnode is invisible
|
|
* in this case.
|
|
*/
|
|
|
|
|
|
#define INDICATOR_SIZE 16
|
|
#define INDICATOR_SPACING 2
|
|
|
|
|
|
static void gtk_check_button_get_preferred_width (GtkWidget *widget,
|
|
gint *minimum,
|
|
gint *natural);
|
|
static void gtk_check_button_get_preferred_width_for_height (GtkWidget *widget,
|
|
gint height,
|
|
gint *minimum,
|
|
gint *natural);
|
|
static void gtk_check_button_get_preferred_height (GtkWidget *widget,
|
|
gint *minimum,
|
|
gint *natural);
|
|
static void gtk_check_button_get_preferred_height_for_width (GtkWidget *widget,
|
|
gint width,
|
|
gint *minimum,
|
|
gint *natural);
|
|
static void gtk_check_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
|
|
gint width,
|
|
gint *minimum,
|
|
gint *natural,
|
|
gint *minimum_baseline,
|
|
gint *natural_baseline);
|
|
static void gtk_check_button_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation);
|
|
static gboolean gtk_check_button_draw (GtkWidget *widget,
|
|
cairo_t *cr);
|
|
|
|
typedef struct {
|
|
GtkCssGadget *gadget;
|
|
GtkCssGadget *indicator_gadget;
|
|
} GtkCheckButtonPrivate;
|
|
|
|
G_DEFINE_TYPE_WITH_PRIVATE (GtkCheckButton, gtk_check_button, GTK_TYPE_TOGGLE_BUTTON)
|
|
|
|
static void
|
|
gtk_check_button_update_node_state (GtkWidget *widget)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssImageBuiltinType image_type;
|
|
GtkStateFlags state;
|
|
|
|
state = gtk_widget_get_state_flags (widget);
|
|
|
|
/* XXX: This is somewhat awkward here, but there's no better
|
|
* way to update the icon
|
|
*/
|
|
if (state & GTK_STATE_FLAG_CHECKED)
|
|
image_type = GTK_IS_RADIO_BUTTON (widget) ? GTK_CSS_IMAGE_BUILTIN_OPTION : GTK_CSS_IMAGE_BUILTIN_CHECK;
|
|
else if (state & GTK_STATE_FLAG_INCONSISTENT)
|
|
image_type = GTK_IS_RADIO_BUTTON (widget) ? GTK_CSS_IMAGE_BUILTIN_OPTION_INCONSISTENT : GTK_CSS_IMAGE_BUILTIN_CHECK_INCONSISTENT;
|
|
else
|
|
image_type = GTK_CSS_IMAGE_BUILTIN_NONE;
|
|
gtk_builtin_icon_set_image (GTK_BUILTIN_ICON (priv->indicator_gadget), image_type);
|
|
|
|
gtk_css_gadget_set_state (priv->indicator_gadget, state);
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_check_button_state_flags_changed (GtkWidget *widget,
|
|
GtkStateFlags previous_state_flags)
|
|
{
|
|
gtk_check_button_update_node_state (widget);
|
|
|
|
GTK_WIDGET_CLASS (gtk_check_button_parent_class)->state_flags_changed (widget, previous_state_flags);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_direction_changed (GtkWidget *widget,
|
|
GtkTextDirection previous_direction)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
|
|
gtk_box_gadget_reverse_children (GTK_BOX_GADGET (priv->gadget));
|
|
gtk_box_gadget_set_allocate_reverse (GTK_BOX_GADGET (priv->gadget),
|
|
gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
|
|
gtk_box_gadget_set_align_reverse (GTK_BOX_GADGET (priv->gadget),
|
|
gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
|
|
|
|
GTK_WIDGET_CLASS (gtk_check_button_parent_class)->direction_changed (widget, previous_direction);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_finalize (GObject *object)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (object));
|
|
|
|
g_clear_object (&priv->gadget);
|
|
g_clear_object (&priv->indicator_gadget);
|
|
|
|
G_OBJECT_CLASS (gtk_check_button_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_add (GtkContainer *container,
|
|
GtkWidget *widget)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (container));
|
|
int pos;
|
|
|
|
GTK_CONTAINER_CLASS (gtk_check_button_parent_class)->add (container, widget);
|
|
|
|
pos = gtk_widget_get_direction (GTK_WIDGET (container)) == GTK_TEXT_DIR_RTL ? 0 : 1;
|
|
gtk_box_gadget_insert_widget (GTK_BOX_GADGET (priv->gadget), pos, widget);
|
|
gtk_box_gadget_set_gadget_expand (GTK_BOX_GADGET (priv->gadget), G_OBJECT (widget), TRUE);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_remove (GtkContainer *container,
|
|
GtkWidget *widget)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (container));
|
|
|
|
gtk_box_gadget_remove_widget (GTK_BOX_GADGET (priv->gadget), widget);
|
|
|
|
GTK_CONTAINER_CLASS (gtk_check_button_parent_class)->remove (container, widget);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_class_init (GtkCheckButtonClass *class)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (class);
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
|
|
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
|
|
|
|
object_class->finalize = gtk_check_button_finalize;
|
|
|
|
widget_class->get_preferred_width = gtk_check_button_get_preferred_width;
|
|
widget_class->get_preferred_width_for_height = gtk_check_button_get_preferred_width_for_height;
|
|
widget_class->get_preferred_height = gtk_check_button_get_preferred_height;
|
|
widget_class->get_preferred_height_for_width = gtk_check_button_get_preferred_height_for_width;
|
|
widget_class->get_preferred_height_and_baseline_for_width = gtk_check_button_get_preferred_height_and_baseline_for_width;
|
|
widget_class->size_allocate = gtk_check_button_size_allocate;
|
|
widget_class->draw = gtk_check_button_draw;
|
|
widget_class->state_flags_changed = gtk_check_button_state_flags_changed;
|
|
widget_class->direction_changed = gtk_check_button_direction_changed;
|
|
|
|
container_class->add = gtk_check_button_add;
|
|
container_class->remove = gtk_check_button_remove;
|
|
|
|
gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_CHECK_BOX);
|
|
gtk_widget_class_set_css_name (widget_class, "checkbutton");
|
|
}
|
|
|
|
static void
|
|
draw_indicator_changed (GObject *object,
|
|
GParamSpec *pspec,
|
|
gpointer user_data)
|
|
{
|
|
GtkButton *button = GTK_BUTTON (object);
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (button));
|
|
GtkCssNode *widget_node;
|
|
GtkCssNode *indicator_node;
|
|
|
|
widget_node = gtk_widget_get_css_node (GTK_WIDGET (button));
|
|
indicator_node = gtk_css_gadget_get_node (priv->indicator_gadget);
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (button)))
|
|
{
|
|
gtk_css_node_set_visible (indicator_node, TRUE);
|
|
if (GTK_IS_RADIO_BUTTON (button))
|
|
{
|
|
gtk_css_node_remove_class (widget_node, g_quark_from_static_string ("radio"));
|
|
gtk_css_node_set_name (widget_node, I_("radiobutton"));
|
|
}
|
|
else if (GTK_IS_CHECK_BUTTON (button))
|
|
{
|
|
gtk_css_node_remove_class (widget_node, g_quark_from_static_string ("check"));
|
|
gtk_css_node_set_name (widget_node, I_("checkbutton"));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
gtk_css_node_set_visible (indicator_node, FALSE);
|
|
if (GTK_IS_RADIO_BUTTON (button))
|
|
{
|
|
gtk_css_node_add_class (widget_node, g_quark_from_static_string ("radio"));
|
|
gtk_css_node_set_name (widget_node, I_("button"));
|
|
}
|
|
else if (GTK_IS_CHECK_BUTTON (button))
|
|
{
|
|
gtk_css_node_add_class (widget_node, g_quark_from_static_string ("check"));
|
|
gtk_css_node_set_name (widget_node, I_("button"));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_init (GtkCheckButton *check_button)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (check_button);
|
|
GtkCssNode *widget_node;
|
|
|
|
gtk_widget_set_receives_default (GTK_WIDGET (check_button), FALSE);
|
|
g_signal_connect (check_button, "notify::draw-indicator", G_CALLBACK (draw_indicator_changed), NULL);
|
|
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (check_button), TRUE);
|
|
|
|
gtk_style_context_remove_class (gtk_widget_get_style_context (GTK_WIDGET (check_button)), "toggle");
|
|
|
|
widget_node = gtk_widget_get_css_node (GTK_WIDGET (check_button));
|
|
priv->gadget = gtk_box_gadget_new_for_node (widget_node, GTK_WIDGET (check_button));
|
|
gtk_box_gadget_set_orientation (GTK_BOX_GADGET (priv->gadget), GTK_ORIENTATION_HORIZONTAL);
|
|
gtk_box_gadget_set_draw_focus (GTK_BOX_GADGET (priv->gadget), TRUE);
|
|
priv->indicator_gadget = gtk_builtin_icon_new ("check",
|
|
GTK_WIDGET (check_button),
|
|
priv->gadget,
|
|
NULL);
|
|
gtk_box_gadget_insert_gadget (GTK_BOX_GADGET (priv->gadget), 0, priv->indicator_gadget, FALSE, GTK_ALIGN_BASELINE);
|
|
|
|
gtk_check_button_update_node_state (GTK_WIDGET (check_button));
|
|
}
|
|
|
|
/**
|
|
* gtk_check_button_new:
|
|
*
|
|
* Creates a new #GtkCheckButton.
|
|
*
|
|
* Returns: a #GtkWidget.
|
|
*/
|
|
GtkWidget*
|
|
gtk_check_button_new (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_CHECK_BUTTON, NULL);
|
|
}
|
|
|
|
|
|
/**
|
|
* gtk_check_button_new_with_label:
|
|
* @label: the text for the check button.
|
|
*
|
|
* Creates a new #GtkCheckButton with a #GtkLabel to the right of it.
|
|
*
|
|
* Returns: a #GtkWidget.
|
|
*/
|
|
GtkWidget*
|
|
gtk_check_button_new_with_label (const gchar *label)
|
|
{
|
|
return g_object_new (GTK_TYPE_CHECK_BUTTON, "label", label, NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_check_button_new_with_mnemonic:
|
|
* @label: The text of the button, with an underscore in front of the
|
|
* mnemonic character
|
|
*
|
|
* Creates a new #GtkCheckButton containing a label. The label
|
|
* will be created using gtk_label_new_with_mnemonic(), so underscores
|
|
* in @label indicate the mnemonic for the check button.
|
|
*
|
|
* Returns: a new #GtkCheckButton
|
|
*/
|
|
GtkWidget*
|
|
gtk_check_button_new_with_mnemonic (const gchar *label)
|
|
{
|
|
return g_object_new (GTK_TYPE_CHECK_BUTTON,
|
|
"label", label,
|
|
"use-underline", TRUE,
|
|
NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_get_preferred_width_for_height (GtkWidget *widget,
|
|
gint height,
|
|
gint *minimum,
|
|
gint *natural)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = GTK_BUTTON (widget)->priv->gadget;
|
|
|
|
gtk_css_gadget_get_preferred_size (gadget,
|
|
GTK_ORIENTATION_HORIZONTAL,
|
|
height,
|
|
minimum, natural,
|
|
NULL, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_get_preferred_width (GtkWidget *widget,
|
|
gint *minimum,
|
|
gint *natural)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = GTK_BUTTON (widget)->priv->gadget;
|
|
|
|
gtk_css_gadget_get_preferred_size (gadget,
|
|
GTK_ORIENTATION_HORIZONTAL,
|
|
-1,
|
|
minimum, natural,
|
|
NULL, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
|
|
gint width,
|
|
gint *minimum,
|
|
gint *natural,
|
|
gint *minimum_baseline,
|
|
gint *natural_baseline)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = GTK_BUTTON (widget)->priv->gadget;
|
|
|
|
gtk_css_gadget_get_preferred_size (gadget,
|
|
GTK_ORIENTATION_VERTICAL,
|
|
width,
|
|
minimum, natural,
|
|
minimum_baseline, natural_baseline);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_get_preferred_height_for_width (GtkWidget *widget,
|
|
gint width,
|
|
gint *minimum,
|
|
gint *natural)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = GTK_BUTTON (widget)->priv->gadget;
|
|
|
|
gtk_css_gadget_get_preferred_size (gadget,
|
|
GTK_ORIENTATION_VERTICAL,
|
|
width,
|
|
minimum, natural,
|
|
NULL, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_get_preferred_height (GtkWidget *widget,
|
|
gint *minimum,
|
|
gint *natural)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = GTK_BUTTON (widget)->priv->gadget;
|
|
|
|
gtk_css_gadget_get_preferred_size (gadget,
|
|
GTK_ORIENTATION_VERTICAL,
|
|
-1,
|
|
minimum, natural,
|
|
NULL, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_check_button_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkButton *button = GTK_BUTTON (widget);
|
|
GtkCssGadget *gadget;
|
|
GdkRectangle clip;
|
|
PangoContext *pango_context;
|
|
PangoFontMetrics *metrics;
|
|
|
|
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 gint
|
|
gtk_check_button_draw (GtkWidget *widget,
|
|
cairo_t *cr)
|
|
{
|
|
GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (widget));
|
|
GtkCssGadget *gadget;
|
|
|
|
if (gtk_toggle_button_get_mode (GTK_TOGGLE_BUTTON (widget)))
|
|
gadget = priv->gadget;
|
|
else
|
|
gadget = GTK_BUTTON (widget)->priv->gadget;
|
|
|
|
gtk_css_gadget_draw (gadget, cr);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
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);
|
|
}
|