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Add GtkSwitch, a "light-switch" like widget

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The GtkSwitch widget is a simple UI control that has two states: on and
off. Toggling between the states is possible by clicking the widget or
by dragging the handle.

https://bugzilla.gnome.org/show_bug.cgi?id=634987
This commit is contained in:
Emmanuele Bassi 2010-11-26 13:24:04 +00:00
parent 7d0e356946
commit 0cd0e4091f
7 changed files with 1058 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
gtk/Makefile.am
View File

@ -288,6 +288,7 @@ gtk_public_h_sources = \
gtkstatusicon.h \
gtkstock.h \
gtkstyle.h \
gtkswitch.h \
gtktable.h \
gtktearoffmenuitem.h \
gtktestutils.h \
@ -561,6 +562,7 @@ gtk_base_c_sources = \
gtkstatusicon.c \
gtkstock.c \
gtkstyle.c \
gtkswitch.c \
gtktable.c \
gtktearoffmenuitem.c \
gtktestutils.c \

1
gtk/gtk.h
View File

@ -171,6 +171,7 @@
#include <gtk/gtkstatusicon.h>
#include <gtk/gtkstock.h>
#include <gtk/gtkstyle.h>
#include <gtk/gtkswitch.h>
#include <gtk/gtktable.h>
#include <gtk/gtktearoffmenuitem.h>
#include <gtk/gtktextbuffer.h>

4
gtk/gtk.symbols
View File

@ -2236,6 +2236,10 @@ gtk_stock_item_free
gtk_stock_list_ids
gtk_stock_lookup
gtk_stock_set_translate_func
gtk_switch_get_active
gtk_switch_get_type G_GNUC_CONST
gtk_switch_new
gtk_switch_set_active
gtk_style_apply_default_background
gtk_style_attach
gtk_style_copy

864
gtk/gtkswitch.c Normal file
View File

@ -0,0 +1,864 @@
/* GTK - The GIMP Toolkit
*
* Copyright (C) 2010 Intel Corporation
* Copyright (C) 2010 RedHat, Inc.
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author:
* Emmanuele Bassi <ebassi@linux.intel.com>
* Matthias Clasen <mclasen@redhat.com>
*
* Based on similar code from:
* Thomas Wood <thos@linux.intel.com>
*/
/**
* SECTION:gtkswitch
* @Short_Description: A "light switch" style toggle
* @Title: GtkSwitch
* @See_Also: #GtkToggleButton
*
* #GtkSwitch is a widget that has two states: on or off. The user can control
* which state should be active by clicking the empty area, or by dragging the
* handle.
*/
#include "config.h"
#include "gtkswitch.h"
#include <gdk/gdkkeysyms.h>
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkstyle.h"
#include "gtkprivate.h"
#include "gtkwidget.h"
#include "gtkactivatable.h"
#include "gtktoggleaction.h"
#define DEFAULT_SLIDER_WIDTH (36)
#define DEFAULT_SLIDER_HEIGHT (22)
struct _GtkSwitchPrivate
{
GdkWindow *event_window;
GtkAction *action;
gint handle_x;
gint offset;
gint drag_start;
gint drag_threshold;
guint is_active : 1;
guint is_dragging : 1;
guint in_press : 1;
guint in_switch : 1;
guint use_action_appearance : 1;
};
enum
{
PROP_0,
PROP_ACTIVE,
PROP_RELATED_ACTION,
PROP_USE_ACTION_APPEARANCE,
LAST_PROP
};
static GParamSpec *switch_props[LAST_PROP] = { NULL, };
static void gtk_switch_activatable_interface_init (GtkActivatableIface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkSwitch, gtk_switch, GTK_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
gtk_switch_activatable_interface_init));
static gboolean
gtk_switch_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
if (priv->is_active)
{
/* if the event occurred in the "off" area, then this
* is a direct toggle
*/
if (event->x <= allocation.width / 2)
{
priv->in_press = TRUE;
return FALSE;
}
priv->offset = event->x - allocation.width / 2;
}
else
{
/* if the event occurred in the "on" area, then this
* is a direct toggle
*/
if (event->x >= allocation.width / 2)
{
priv->in_press = TRUE;
return FALSE;
}
priv->offset = event->x;
}
priv->drag_start = event->x;
g_object_get (gtk_widget_get_settings (widget),
"gtk-dnd-drag-threshold", &priv->drag_threshold,
NULL);
return FALSE;
}
static gboolean
gtk_switch_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
/* if this is a direct toggle we don't handle motion */
if (priv->in_press)
return FALSE;
if (ABS (event->x - priv->drag_start) < priv->drag_threshold)
return TRUE;
if (event->state & GDK_BUTTON1_MASK)
{
gint position = event->x - priv->offset;
GtkAllocation allocation;
GtkStyle *style;
style = gtk_widget_get_style (widget);
gtk_widget_get_allocation (widget, &allocation);
/* constrain the handle within the trough width */
if (position > (allocation.width / 2 - style->xthickness))
priv->handle_x = allocation.width / 2 - style->xthickness;
else if (position < style->xthickness)
priv->handle_x = style->xthickness;
else
priv->handle_x = position;
priv->is_dragging = TRUE;
/* we need to redraw the handle */
gtk_widget_queue_draw (widget);
return TRUE;
}
return FALSE;
}
static gboolean
gtk_switch_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
/* dragged toggles have a "soft" grab, so we don't care whether we
* are in the switch or not when the button is released; we do care
* for direct toggles, instead
*/
if (!priv->is_dragging && !priv->in_switch)
return FALSE;
/* direct toggle */
if (priv->in_press)
{
priv->in_press = FALSE;
gtk_switch_set_active (GTK_SWITCH (widget), !priv->is_active);
return TRUE;
}
/* dragged toggle */
if (priv->is_dragging)
{
priv->is_dragging = FALSE;
/* if half the handle passed the middle of the switch, then we
* consider it to be on
*/
if ((priv->handle_x + (allocation.width / 4)) >= (allocation.width / 2))
{
gtk_switch_set_active (GTK_SWITCH (widget), TRUE);
priv->handle_x = allocation.width / 2;
}
else
{
gtk_switch_set_active (GTK_SWITCH (widget), FALSE);
priv->handle_x = 0;
}
gtk_widget_queue_draw (widget);
return TRUE;
}
return FALSE;
}
static gboolean
gtk_switch_enter (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
if (event->window == priv->event_window)
priv->in_switch = TRUE;
return FALSE;
}
static gboolean
gtk_switch_leave (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
if (event->window == priv->event_window)
priv->in_switch = FALSE;
return FALSE;
}
static gboolean
gtk_switch_key_release (GtkWidget *widget,
GdkEventKey *event)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
if (event->keyval == GDK_KEY_Return ||
event->keyval == GDK_KEY_KP_Enter ||
event->keyval == GDK_KEY_ISO_Enter ||
event->keyval == GDK_KEY_space ||
event->keyval == GDK_KEY_KP_Space)
{
gtk_switch_set_active (GTK_SWITCH (widget), !priv->is_active);
}
return FALSE;
}
static void
gtk_switch_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkStyle *style = gtk_widget_get_style (widget);
gint width, slider_width, focus_width, focus_pad;
PangoLayout *layout;
PangoRectangle logical_rect;
width = style->xthickness * 2;
gtk_widget_style_get (widget,
"slider-width", &slider_width,
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
width += 2 * (focus_width + focus_pad);
/* Translators: if the "on" state label requires more than three
* glyphs then use MEDIUM VERTICAL BAR (U+2759) as the text for
* the state
*/
layout = gtk_widget_create_pango_layout (widget, C_("switch", "ON"));
pango_layout_get_extents (layout, NULL, &logical_rect);
pango_extents_to_pixels (&logical_rect, NULL);
width += MAX (logical_rect.width, slider_width);
/* Translators: if the "off" state label requires more than three
* glyphs then use WHITE CIRCLE (U+25CB) as the text for the state
*/
pango_layout_set_text (layout, C_("switch", "OFF"), -1);
pango_layout_get_extents (layout, NULL, &logical_rect);
pango_extents_to_pixels (&logical_rect, NULL);
width += MAX (logical_rect.width, slider_width);
g_object_unref (layout);
if (minimum)
*minimum = width;
if (natural)
*natural = width;
}
static void
gtk_switch_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural)
{
GtkStyle *style = gtk_widget_get_style (widget);
gint height, focus_width, focus_pad;
PangoLayout *layout;
PangoRectangle logical_rect;
gchar *str;
height = style->ythickness * 2;
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
height += 2 * (focus_width + focus_pad);
str = g_strdup_printf ("%s%s",
C_("switch", "ON"),
C_("switch", "OFF"));
layout = gtk_widget_create_pango_layout (widget, str);
pango_layout_get_extents (layout, NULL, &logical_rect);
pango_extents_to_pixels (&logical_rect, NULL);
height += MAX (DEFAULT_SLIDER_HEIGHT, logical_rect.height);
g_object_unref (layout);
g_free (str);
if (minimum)
*minimum = height;
if (natural)
*natural = height;
}
static void
gtk_switch_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget))
gdk_window_move_resize (priv->event_window,
allocation->x,
allocation->y,
allocation->width,
allocation->height);
}
static void
gtk_switch_realize (GtkWidget *widget)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
GdkWindow *parent_window;
GdkWindowAttr attributes;
gint attributes_mask;
GtkAllocation allocation;
gtk_widget_set_realized (widget, TRUE);
parent_window = gtk_widget_get_parent_window (widget);
gtk_widget_set_window (widget, parent_window);
g_object_ref (parent_window);
gtk_widget_get_allocation (widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_ONLY;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_POINTER_MOTION_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y;
priv->event_window = gdk_window_new (parent_window,
&attributes,
attributes_mask);
gdk_window_set_user_data (priv->event_window, widget);
gtk_widget_style_attach (widget);
}
static void
gtk_switch_unrealize (GtkWidget *widget)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
if (priv->event_window != NULL)
{
gdk_window_set_user_data (priv->event_window, NULL);
gdk_window_destroy (priv->event_window);
priv->event_window = NULL;
}
GTK_WIDGET_CLASS (gtk_switch_parent_class)->unrealize (widget);
}
static void
gtk_switch_map (GtkWidget *widget)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
GTK_WIDGET_CLASS (gtk_switch_parent_class)->map (widget);
if (priv->event_window)
gdk_window_show (priv->event_window);
}
static void
gtk_switch_unmap (GtkWidget *widget)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
if (priv->event_window)
gdk_window_hide (priv->event_window);
GTK_WIDGET_CLASS (gtk_switch_parent_class)->unmap (widget);
}
static inline void
gtk_switch_paint_handle (GtkWidget *widget,
cairo_t *cr,
GdkRectangle *box)
{
GtkStyle *style = gtk_widget_get_style (widget);
gtk_paint_slider (style, cr,
gtk_widget_get_state (widget),
GTK_SHADOW_OUT,
GTK_WIDGET (widget), "switch-slider",
box->x,
box->y,
box->width,
box->height,
GTK_ORIENTATION_HORIZONTAL);
}
static gboolean
gtk_switch_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkSwitchPrivate *priv = GTK_SWITCH (widget)->priv;
GtkStyle *style;
GdkRectangle handle;
PangoLayout *layout;
PangoRectangle rect;
gint label_x, label_y;
GtkStateType state;
gint focus_width, focus_pad;
gint x, y, width, height;
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
"focus-padding", &focus_pad,
NULL);
style = gtk_widget_get_style (widget);
x = 0;
y = 0;
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
if (gtk_widget_has_focus (widget))
gtk_paint_focus (style, cr,
gtk_widget_get_state (widget),
widget, "button",
x, y, width, height);
x += focus_width + focus_pad;
y += focus_width + focus_pad;
width -= 2 * (focus_width + focus_pad);
height -= 2 * (focus_width + focus_pad);
state = priv->is_active ? GTK_STATE_SELECTED : gtk_widget_get_state (widget);
/* background - XXX should this be a flat box instead? we're missing
* the border given by the shadow with that, which would require
* fixing all theme engines to add a subtle border for this widget
*/
gtk_paint_box (style, cr,
state,
GTK_SHADOW_IN,
widget, "switch-background",
x, y, width, height);
if (!gtk_widget_is_sensitive (widget))
state = GTK_STATE_INSENSITIVE;
/* XXX the +1/-1 it's pixel wriggling after checking with the default
* theme and xmag
*/
handle.y = y + style->ythickness + 1;
handle.width = (width - style->xthickness * 2) / 2;
handle.height = (height - style->ythickness * 2) - 1;
/* Translators: if the "on" state label requires more than three
* glyphs then use MEDIUM VERTICAL BAR (U+2759) as the text for
* the state
*/
layout = gtk_widget_create_pango_layout (widget, C_("switch", "ON"));
pango_layout_get_extents (layout, NULL, &rect);
pango_extents_to_pixels (&rect, NULL);
label_x = x + style->xthickness
+ ((width / 2) - rect.width - (style->xthickness * 2)) / 2;
label_y = y + style->ythickness
+ (height - rect.height - (style->ythickness * 2)) / 2;
gtk_paint_layout (style, cr,
state,
FALSE,
widget, "switch-on-label",
label_x, label_y,
layout);
g_object_unref (layout);
/* Translators: if the "off" state label requires more than three
* glyphs then use WHITE CIRCLE (U+25CB) as the text for the state
*/
layout = gtk_widget_create_pango_layout (widget, C_("switch", "OFF"));
pango_layout_get_extents (layout, NULL, &rect);
pango_extents_to_pixels (&rect, NULL);
label_x = x + style->xthickness
+ (width / 2)
+ ((width / 2) - rect.width - (style->xthickness * 2)) / 2;
label_y = y + style->ythickness
+ (height - rect.height - (style->ythickness * 2)) / 2;
gtk_paint_layout (style, cr,
state,
FALSE,
widget, "switch-off-label",
label_x, label_y,
layout);
g_object_unref (layout);
if (priv->is_dragging)
handle.x = x + priv->handle_x;
else if (priv->is_active)
handle.x = x + width - handle.width - style->xthickness;
else
handle.x = x + style->xthickness;
gtk_switch_paint_handle (widget, cr, &handle);
return FALSE;
}
static void
gtk_switch_set_related_action (GtkSwitch *sw,
GtkAction *action)
{
GtkSwitchPrivate *priv = sw->priv;
if (priv->action == action)
return;
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (sw), action);
priv->action = action;
}
static void
gtk_switch_set_use_action_appearance (GtkSwitch *sw,
gboolean use_appearance)
{
GtkSwitchPrivate *priv = sw->priv;
if (priv->use_action_appearance != use_appearance)
{
priv->use_action_appearance = use_appearance;
gtk_activatable_sync_action_properties (GTK_ACTIVATABLE (sw), priv->action);
}
}
static void
gtk_switch_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkSwitch *sw = GTK_SWITCH (gobject);
switch (prop_id)
{
case PROP_ACTIVE:
gtk_switch_set_active (sw, g_value_get_boolean (value));
break;
case PROP_RELATED_ACTION:
gtk_switch_set_related_action (sw, g_value_get_object (value));
break;
case PROP_USE_ACTION_APPEARANCE:
gtk_switch_set_use_action_appearance (sw, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
}
static void
gtk_switch_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkSwitchPrivate *priv = GTK_SWITCH (gobject)->priv;
switch (prop_id)
{
case PROP_ACTIVE:
g_value_set_boolean (value, priv->is_active);
break;
case PROP_RELATED_ACTION:
g_value_set_object (value, priv->action);
break;
case PROP_USE_ACTION_APPEARANCE:
g_value_set_boolean (value, priv->use_action_appearance);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
}
static void
gtk_switch_dispose (GObject *object)
{
GtkSwitchPrivate *priv = GTK_SWITCH (object)->priv;
if (priv->action)
{
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (object), NULL);
priv->action = NULL;
}
G_OBJECT_CLASS (gtk_switch_parent_class)->dispose (object);
}
static void
gtk_switch_class_init (GtkSwitchClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gpointer activatable_iface;
g_type_class_add_private (klass, sizeof (GtkSwitchPrivate));
activatable_iface = g_type_default_interface_peek (GTK_TYPE_ACTIVATABLE);
switch_props[PROP_RELATED_ACTION] =
g_param_spec_override ("related-action",
g_object_interface_find_property (activatable_iface,
"related-action"));
switch_props[PROP_USE_ACTION_APPEARANCE] =
g_param_spec_override ("use-action-appearance",
g_object_interface_find_property (activatable_iface,
"use-action-appearance"));
/**
* GtkSwitch:active:
*
* Whether the #GtkSwitch widget is in its on or off state.
*/
switch_props[PROP_ACTIVE] =
g_param_spec_boolean ("active",
P_("Active"),
P_("Whether the switch is on or off"),
FALSE,
GTK_PARAM_READWRITE);
gobject_class->set_property = gtk_switch_set_property;
gobject_class->get_property = gtk_switch_get_property;
gobject_class->dispose = gtk_switch_dispose;
g_object_class_install_properties (gobject_class, LAST_PROP, switch_props);
widget_class->get_preferred_width = gtk_switch_get_preferred_width;
widget_class->get_preferred_height = gtk_switch_get_preferred_height;
widget_class->size_allocate = gtk_switch_size_allocate;
widget_class->realize = gtk_switch_realize;
widget_class->unrealize = gtk_switch_unrealize;
widget_class->map = gtk_switch_map;
widget_class->unmap = gtk_switch_unmap;
widget_class->draw = gtk_switch_draw;
widget_class->button_press_event = gtk_switch_button_press;
widget_class->button_release_event = gtk_switch_button_release;
widget_class->motion_notify_event = gtk_switch_motion;
widget_class->enter_notify_event = gtk_switch_enter;
widget_class->leave_notify_event = gtk_switch_leave;
widget_class->key_release_event = gtk_switch_key_release;
/**
* GtkSwitch:slider-width:
*
* The minimum width of the #GtkSwitch handle, in pixels.
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("slider-width",
P_("Slider Width"),
P_("The minimum width of the handle"),
DEFAULT_SLIDER_WIDTH, G_MAXINT,
DEFAULT_SLIDER_WIDTH,
GTK_PARAM_READABLE));
}
static void
gtk_switch_init (GtkSwitch *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GTK_TYPE_SWITCH, GtkSwitchPrivate);
self->priv->use_action_appearance = TRUE;
gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
gtk_widget_set_can_focus (GTK_WIDGET (self), TRUE);
}
/**
* gtk_switch_new:
*
* Creates a new #GtkSwitch widget.
*
* Return value: the newly created #GtkSwitch instance
*/
GtkWidget *
gtk_switch_new (void)
{
return g_object_new (GTK_TYPE_SWITCH, NULL);
}
/**
* gtk_switch_set_active:
* @sw: a #GtkSwitch
* @is_active: %TRUE if @sw should be active, and %FALSE otherwise
*
* Changes the state of @sw to the desired one.
*/
void
gtk_switch_set_active (GtkSwitch *sw,
gboolean is_active)
{
GtkSwitchPrivate *priv;
g_return_if_fail (GTK_IS_SWITCH (sw));
is_active = !!is_active;
priv = sw->priv;
if (priv->is_active != is_active)
{
priv->is_active = is_active;
g_object_notify_by_pspec (G_OBJECT (sw), switch_props[PROP_ACTIVE]);
if (priv->action)
gtk_action_activate (priv->action);
gtk_widget_queue_draw (GTK_WIDGET (sw));
}
}
/**
* gtk_switch_get_active:
* @sw: a #GtkSwitch
*
* Gets whether the #GtkSwitch is in its "on" or "off" state.
*
* Return value: %TRUE if the #GtkSwitch is active, and %FALSE otherwise
*/
gboolean
gtk_switch_get_active (GtkSwitch *sw)
{
g_return_val_if_fail (GTK_IS_SWITCH (sw), FALSE);
return sw->priv->is_active;
}
static void
gtk_switch_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name)
{
if (strcmp (property_name, "visible") == 0)
{
if (gtk_action_is_visible (action))
gtk_widget_show (GTK_WIDGET (activatable));
else
gtk_widget_hide (GTK_WIDGET (activatable));
}
else if (strcmp (property_name, "sensitive") == 0)
{
gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
}
else if (strcmp (property_name, "active") == 0)
{
gtk_action_block_activate (action);
gtk_switch_set_active (GTK_SWITCH (activatable), gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
gtk_action_unblock_activate (action);
}
}
static void
gtk_switch_sync_action_properties (GtkActivatable *activatable,
GtkAction *action)
{
if (!action)
return;
if (gtk_action_is_visible (action))
gtk_widget_show (GTK_WIDGET (activatable));
else
gtk_widget_hide (GTK_WIDGET (activatable));
gtk_widget_set_sensitive (GTK_WIDGET (activatable), gtk_action_is_sensitive (action));
gtk_action_block_activate (action);
gtk_switch_set_active (GTK_SWITCH (activatable), gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)));
gtk_action_unblock_activate (action);
}
static void
gtk_switch_activatable_interface_init (GtkActivatableIface *iface)
{
iface->update = gtk_switch_update;
iface->sync_action_properties = gtk_switch_sync_action_properties;
}

95
gtk/gtkswitch.h Normal file
View File

@ -0,0 +1,95 @@
/* GTK - The GIMP Toolkit
*
* Copyright (C) 2010 Intel Corporation
* Copyright (C) 2010 RedHat, Inc.
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author:
* Emmanuele Bassi <ebassi@linux.intel.com>
* Matthias Clasen <mclasen@redhat.com>
*
* Based on similar code from:
* Thomas Wood <thos@linux.intel.com>
*/
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#ifndef __GTK_SWITCH_H__
#define __GTK_SWITCH_H__
#include <gtk/gtkwidget.h>
G_BEGIN_DECLS
#define GTK_TYPE_SWITCH (gtk_switch_get_type ())
#define GTK_SWITCH(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SWITCH, GtkSwitch))
#define GTK_IS_SWITCH(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_SWITCH))
#define GTK_SWITCH_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_SWITCH, GtkSwitchClass))
#define GTK_IS_SWITCH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_SWITCH))
#define GTK_SWITCH_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_SWITCH, GtkSwitchClass))
typedef struct _GtkSwitch GtkSwitch;
typedef struct _GtkSwitchPrivate GtkSwitchPrivate;
typedef struct _GtkSwitchClass GtkSwitchClass;
/**
* GtkSwitch:
*
* The <structname>GtkSwitch</structname> structure contains private
* data and it should only be accessed using the provided API.
*/
struct _GtkSwitch
{
/*< private >*/
GtkWidget parent_instance;
GtkSwitchPrivate *priv;
};
/**
* GtkSwitchClass:
*
* The <structname>GtkSwitchClass</structname> structure contains only
* private data.
*/
struct _GtkSwitchClass
{
/*< private >*/
GtkWidgetClass parent_class;
void (* _switch_padding_1) (void);
void (* _switch_padding_2) (void);
void (* _switch_padding_3) (void);
void (* _switch_padding_4) (void);
void (* _switch_padding_5) (void);
void (* _switch_padding_6) (void);
void (* _switch_padding_7) (void);
};
GType gtk_switch_get_type (void) G_GNUC_CONST;
GtkWidget * gtk_switch_new (void);
void gtk_switch_set_active (GtkSwitch *sw,
gboolean is_active);
gboolean gtk_switch_get_active (GtkSwitch *sw);
G_END_DECLS
#endif /* __GTK_SWITCH_H__ */

7
tests/Makefile.am
View File

@ -95,7 +95,8 @@ noinst_PROGRAMS = $(TEST_PROGS) \
testexpand \
testexpander \
testvolumebutton \
testscrolledwindow
testscrolledwindow \
testswitch
if USE_X11
noinst_PROGRAMS += testerrors
@ -184,6 +185,7 @@ testscrolledwindow_DEPENDENCIES = $(TEST_DEPS)
testwindows_DEPENDENCIES = $(TEST_DEPS)
testexpand_DEPENDENCIES = $(TEST_DEPS)
testexpander_DEPENDENCIES = $(TEST_DEPS)
testswitch_DEPENDENCIES = $(TEST_DEPS)
flicker_LDADD = $(LDADDS)
simple_LDADD = $(LDADDS)
@ -258,6 +260,7 @@ testscrolledwindow_LDADD = $(LDADDS)
testwindows_LDADD = $(LDADDS)
testexpand_LDADD = $(LDADDS)
testexpander_LDADD = $(LDADDS)
testswitch_LDADD = $(LDADDS)
testentrycompletion_SOURCES = \
prop-editor.c \
@ -382,6 +385,8 @@ testexpand_SOURCES = testexpand.c
testexpander_SOURCES = testexpander.c
testswitch_SOURCES = testswitch.c
EXTRA_DIST += \
prop-editor.h \
testgtk.1 \

86
tests/testswitch.c Normal file
View File

@ -0,0 +1,86 @@
#include <stdlib.h>
#include <gtk/gtk.h>
static gboolean
boolean_to_text (GBinding *binding,
const GValue *source,
GValue *target,
gpointer dummy G_GNUC_UNUSED)
{
if (g_value_get_boolean (source))
g_value_set_string (target, "Enabled");
else
g_value_set_string (target, "Disabled");
return TRUE;
}
static GtkWidget *
make_switch (gboolean is_on,
gboolean is_sensitive)
{
GtkWidget *hbox;
GtkWidget *sw, *label;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
sw = gtk_switch_new ();
gtk_switch_set_active (GTK_SWITCH (sw), is_on);
gtk_box_pack_start (GTK_BOX (hbox), sw, FALSE, FALSE, 0);
gtk_widget_set_sensitive (sw, is_sensitive);
gtk_widget_show (sw);
label = gtk_label_new (is_on ? "Enabled" : "Disabled");
gtk_box_pack_end (GTK_BOX (hbox), label, TRUE, TRUE, 0);
gtk_widget_show (label);
g_object_bind_property_full (sw, "active",
label, "label",
G_BINDING_DEFAULT,
boolean_to_text,
NULL,
NULL, NULL);
return hbox;
}
int
main (int argc,
char *argv[])
{
GtkWidget *window;
GtkWidget *vbox, *hbox;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "GtkSwitch");
gtk_window_set_default_size (GTK_WINDOW (window), 400, -1);
gtk_container_set_border_width (GTK_CONTAINER (window), 6);
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
gtk_widget_show (window);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
hbox = make_switch (FALSE, TRUE);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
gtk_widget_show (hbox);
hbox = make_switch (TRUE, TRUE);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
gtk_widget_show (hbox);
hbox = make_switch (FALSE, FALSE);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
gtk_widget_show (hbox);
hbox = make_switch (TRUE, FALSE);
gtk_container_add (GTK_CONTAINER (vbox), hbox);
gtk_widget_show (hbox);
gtk_main ();
return EXIT_SUCCESS;
}