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gtk/gtk/gtkcellrenderertoggle.c
Kristian Rietveld 4f219692ed Make toggle cell renderer follow insensitive state of widget 
Likewise to other cell renderers, GtkCellRendererToggle now properly
follows the insensitive state of the widget requesting rendering.  It
does this by checking the state of the widget pointer, not by using
GtkCellRendererFlags (there exists an insensitive flags).  Later on, I
think we should move to using GtkCellRendererFlags and not the state of
the widget requesting rendering.  Patch merged from maemo-gtk.
2009-09-04 14:06:58 +02:00

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/* gtkcellrenderertoggle.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include "config.h"
#include <stdlib.h>
#include "gtkcellrenderertoggle.h"
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtktreeprivate.h"
#include "gtkalias.h"
static void gtk_cell_renderer_toggle_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void gtk_cell_renderer_toggle_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_cell_renderer_toggle_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height);
static void gtk_cell_renderer_toggle_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags);
static gboolean gtk_cell_renderer_toggle_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags);
enum {
TOGGLED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_ACTIVATABLE,
PROP_ACTIVE,
PROP_RADIO,
PROP_INCONSISTENT,
PROP_INDICATOR_SIZE
};
#define TOGGLE_WIDTH 13
static guint toggle_cell_signals[LAST_SIGNAL] = { 0 };
#define GTK_CELL_RENDERER_TOGGLE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_RENDERER_TOGGLE, GtkCellRendererTogglePrivate))
typedef struct _GtkCellRendererTogglePrivate GtkCellRendererTogglePrivate;
struct _GtkCellRendererTogglePrivate
{
gint indicator_size;
guint inconsistent : 1;
};
G_DEFINE_TYPE (GtkCellRendererToggle, gtk_cell_renderer_toggle, GTK_TYPE_CELL_RENDERER)
static void
gtk_cell_renderer_toggle_init (GtkCellRendererToggle *celltoggle)
{
GtkCellRendererTogglePrivate *priv;
priv = GTK_CELL_RENDERER_TOGGLE_GET_PRIVATE (celltoggle);
celltoggle->activatable = TRUE;
celltoggle->active = FALSE;
celltoggle->radio = FALSE;
GTK_CELL_RENDERER (celltoggle)->mode = GTK_CELL_RENDERER_MODE_ACTIVATABLE;
GTK_CELL_RENDERER (celltoggle)->xpad = 2;
GTK_CELL_RENDERER (celltoggle)->ypad = 2;
priv->indicator_size = TOGGLE_WIDTH;
priv->inconsistent = FALSE;
}
static void
gtk_cell_renderer_toggle_class_init (GtkCellRendererToggleClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
object_class->get_property = gtk_cell_renderer_toggle_get_property;
object_class->set_property = gtk_cell_renderer_toggle_set_property;
cell_class->get_size = gtk_cell_renderer_toggle_get_size;
cell_class->render = gtk_cell_renderer_toggle_render;
cell_class->activate = gtk_cell_renderer_toggle_activate;
g_object_class_install_property (object_class,
PROP_ACTIVE,
g_param_spec_boolean ("active",
P_("Toggle state"),
P_("The toggle state of the button"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_INCONSISTENT,
g_param_spec_boolean ("inconsistent",
P_("Inconsistent state"),
P_("The inconsistent state of the button"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_ACTIVATABLE,
g_param_spec_boolean ("activatable",
P_("Activatable"),
P_("The toggle button can be activated"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_RADIO,
g_param_spec_boolean ("radio",
P_("Radio state"),
P_("Draw the toggle button as a radio button"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_INDICATOR_SIZE,
g_param_spec_int ("indicator-size",
P_("Indicator size"),
P_("Size of check or radio indicator"),
0,
G_MAXINT,
TOGGLE_WIDTH,
GTK_PARAM_READWRITE));
/**
* GtkCellRendererToggle::toggled:
* @cell_renderer: the object which received the signal
* @path: string representation of #GtkTreePath describing the
* event location
*
* The ::toggled signal is emitted when the cell is toggled.
**/
toggle_cell_signals[TOGGLED] =
g_signal_new (I_("toggled"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkCellRendererToggleClass, toggled),
NULL, NULL,
_gtk_marshal_VOID__STRING,
G_TYPE_NONE, 1,
G_TYPE_STRING);
g_type_class_add_private (object_class, sizeof (GtkCellRendererTogglePrivate));
}
static void
gtk_cell_renderer_toggle_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellRendererToggle *celltoggle = GTK_CELL_RENDERER_TOGGLE (object);
GtkCellRendererTogglePrivate *priv;
priv = GTK_CELL_RENDERER_TOGGLE_GET_PRIVATE (object);
switch (param_id)
{
case PROP_ACTIVE:
g_value_set_boolean (value, celltoggle->active);
break;
case PROP_INCONSISTENT:
g_value_set_boolean (value, priv->inconsistent);
break;
case PROP_ACTIVATABLE:
g_value_set_boolean (value, celltoggle->activatable);
break;
case PROP_RADIO:
g_value_set_boolean (value, celltoggle->radio);
break;
case PROP_INDICATOR_SIZE:
g_value_set_int (value, priv->indicator_size);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
gtk_cell_renderer_toggle_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCellRendererToggle *celltoggle = GTK_CELL_RENDERER_TOGGLE (object);
GtkCellRendererTogglePrivate *priv;
priv = GTK_CELL_RENDERER_TOGGLE_GET_PRIVATE (object);
switch (param_id)
{
case PROP_ACTIVE:
celltoggle->active = g_value_get_boolean (value);
break;
case PROP_INCONSISTENT:
priv->inconsistent = g_value_get_boolean (value);
break;
case PROP_ACTIVATABLE:
celltoggle->activatable = g_value_get_boolean (value);
break;
case PROP_RADIO:
celltoggle->radio = g_value_get_boolean (value);
break;
case PROP_INDICATOR_SIZE:
priv->indicator_size = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
/**
* gtk_cell_renderer_toggle_new:
*
* Creates a new #GtkCellRendererToggle. Adjust rendering
* parameters using object properties. Object properties can be set
* globally (with g_object_set()). Also, with #GtkTreeViewColumn, you
* can bind a property to a value in a #GtkTreeModel. For example, you
* can bind the "active" property on the cell renderer to a boolean value
* in the model, thus causing the check button to reflect the state of
* the model.
*
* Return value: the new cell renderer
**/
GtkCellRenderer *
gtk_cell_renderer_toggle_new (void)
{
return g_object_new (GTK_TYPE_CELL_RENDERER_TOGGLE, NULL);
}
static void
gtk_cell_renderer_toggle_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
gint calc_width;
gint calc_height;
GtkCellRendererTogglePrivate *priv;
priv = GTK_CELL_RENDERER_TOGGLE_GET_PRIVATE (cell);
calc_width = (gint) cell->xpad * 2 + priv->indicator_size;
calc_height = (gint) cell->ypad * 2 + priv->indicator_size;
if (width)
*width = calc_width;
if (height)
*height = calc_height;
if (cell_area)
{
if (x_offset)
{
*x_offset = ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
(1.0 - cell->xalign) : cell->xalign) * (cell_area->width - calc_width);
*x_offset = MAX (*x_offset, 0);
}
if (y_offset)
{
*y_offset = cell->yalign * (cell_area->height - calc_height);
*y_offset = MAX (*y_offset, 0);
}
}
else
{
if (x_offset) *x_offset = 0;
if (y_offset) *y_offset = 0;
}
}
static void
gtk_cell_renderer_toggle_render (GtkCellRenderer *cell,
GdkDrawable *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags)
{
GtkCellRendererToggle *celltoggle = (GtkCellRendererToggle *) cell;
GtkCellRendererTogglePrivate *priv;
gint width, height;
gint x_offset, y_offset;
GtkShadowType shadow;
GtkStateType state = 0;
priv = GTK_CELL_RENDERER_TOGGLE_GET_PRIVATE (cell);
gtk_cell_renderer_toggle_get_size (cell, widget, cell_area,
&x_offset, &y_offset,
&width, &height);
width -= cell->xpad*2;
height -= cell->ypad*2;
if (width <= 0 || height <= 0)
return;
if (priv->inconsistent)
shadow = GTK_SHADOW_ETCHED_IN;
else
shadow = celltoggle->active ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE || !cell->sensitive)
{
state = GTK_STATE_INSENSITIVE;
}
else if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
{
if (GTK_WIDGET_HAS_FOCUS (widget))
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_ACTIVE;
}
else
{
if (celltoggle->activatable)
state = GTK_STATE_NORMAL;
else
state = GTK_STATE_INSENSITIVE;
}
if (celltoggle->radio)
{
gtk_paint_option (widget->style,
window,
state, shadow,
expose_area, widget, "cellradio",
cell_area->x + x_offset + cell->xpad,
cell_area->y + y_offset + cell->ypad,
width, height);
}
else
{
gtk_paint_check (widget->style,
window,
state, shadow,
expose_area, widget, "cellcheck",
cell_area->x + x_offset + cell->xpad,
cell_area->y + y_offset + cell->ypad,
width, height);
}
}
static gint
gtk_cell_renderer_toggle_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GtkCellRendererState flags)
{
GtkCellRendererToggle *celltoggle;
celltoggle = GTK_CELL_RENDERER_TOGGLE (cell);
if (celltoggle->activatable)
{
g_signal_emit (cell, toggle_cell_signals[TOGGLED], 0, path);
return TRUE;
}
return FALSE;
}
/**
* gtk_cell_renderer_toggle_set_radio:
* @toggle: a #GtkCellRendererToggle
* @radio: %TRUE to make the toggle look like a radio button
*
* If @radio is %TRUE, the cell renderer renders a radio toggle
* (i.e. a toggle in a group of mutually-exclusive toggles).
* If %FALSE, it renders a check toggle (a standalone boolean option).
* This can be set globally for the cell renderer, or changed just
* before rendering each cell in the model (for #GtkTreeView, you set
* up a per-row setting using #GtkTreeViewColumn to associate model
* columns with cell renderer properties).
**/
void
gtk_cell_renderer_toggle_set_radio (GtkCellRendererToggle *toggle,
gboolean radio)
{
g_return_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle));
toggle->radio = radio;
}
/**
* gtk_cell_renderer_toggle_get_radio:
* @toggle: a #GtkCellRendererToggle
*
* Returns whether we're rendering radio toggles rather than checkboxes.
*
* Return value: %TRUE if we're rendering radio toggles rather than checkboxes
**/
gboolean
gtk_cell_renderer_toggle_get_radio (GtkCellRendererToggle *toggle)
{
g_return_val_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle), FALSE);
return toggle->radio;
}
/**
* gtk_cell_renderer_toggle_get_active:
* @toggle: a #GtkCellRendererToggle
*
* Returns whether the cell renderer is active. See
* gtk_cell_renderer_toggle_set_active().
*
* Return value: %TRUE if the cell renderer is active.
**/
gboolean
gtk_cell_renderer_toggle_get_active (GtkCellRendererToggle *toggle)
{
g_return_val_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle), FALSE);
return toggle->active;
}
/**
* gtk_cell_renderer_toggle_set_active:
* @toggle: a #GtkCellRendererToggle.
* @setting: the value to set.
*
* Activates or deactivates a cell renderer.
**/
void
gtk_cell_renderer_toggle_set_active (GtkCellRendererToggle *toggle,
gboolean setting)
{
g_return_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle));
g_object_set (toggle, "active", setting ? TRUE : FALSE, NULL);
}
/**
* gtk_cell_renderer_toggle_get_activatable:
* @toggle: a #GtkCellRendererToggle
*
* Returns whether the cell renderer is activatable. See
* gtk_cell_renderer_toggle_set_activatable().
*
* Return value: %TRUE if the cell renderer is activatable.
*
* Since: 2.18
**/
gboolean
gtk_cell_renderer_toggle_get_activatable (GtkCellRendererToggle *toggle)
{
g_return_val_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle), FALSE);
return toggle->activatable;
}
/**
* gtk_cell_renderer_toggle_set_activatable:
* @toggle: a #GtkCellRendererToggle.
* @setting: the value to set.
*
* Makes the cell renderer activatable.
*
* Since: 2.18
**/
void
gtk_cell_renderer_toggle_set_activatable (GtkCellRendererToggle *toggle,
gboolean setting)
{
g_return_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle));
if (toggle->activatable != setting)
{
toggle->activatable = setting ? TRUE : FALSE;
g_object_notify (G_OBJECT (toggle), "activatable");
}
}
#define __GTK_CELL_RENDERER_TOGGLE_C__
#include "gtkaliasdef.c"
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