Checked in initial draft of the new tree widget.
2000-10-04 <jrb@redhat.com> * gtk/gtk{tree,cell}?*.[ch]: Checked in initial draft of the new tree widget.
This commit is contained in:
321
gtk/gtkcellrenderertoggle.c
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321
gtk/gtkcellrenderertoggle.c
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/* gtkcellrenderertoggle.c
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* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include <gtk/gtkcellrenderertoggle.h>
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#include <gtk/gtksignal.h>
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#ifndef _
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#define _(x) x
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#endif
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static void gtk_cell_renderer_toggle_get_param (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec,
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const gchar *trailer);
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static void gtk_cell_renderer_toggle_set_param (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec,
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const gchar *trailer);
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static void gtk_cell_renderer_toggle_init (GtkCellRendererToggle *celltext);
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static void gtk_cell_renderer_toggle_class_init (GtkCellRendererToggleClass *class);
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static void gtk_cell_renderer_toggle_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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gint *width,
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gint *height);
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static void gtk_cell_renderer_toggle_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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guint flags);
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static gint gtk_cell_renderer_toggle_event (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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gchar *path,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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guint flags);
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enum {
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TOGGLED,
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LAST_SIGNAL
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};
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enum {
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PROP_ZERO,
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PROP_STATE,
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PROP_RADIO
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};
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#define TOGGLE_WIDTH 12
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static guint toggle_cell_signals[LAST_SIGNAL] = { 0 };
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GtkType
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gtk_cell_renderer_toggle_get_type (void)
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{
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static GtkType cell_toggle_type = 0;
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if (!cell_toggle_type)
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{
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static const GTypeInfo cell_toggle_info =
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{
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sizeof (GtkCellRendererToggleClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gtk_cell_renderer_toggle_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkCellRendererToggle),
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0, /* n_preallocs */
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(GInstanceInitFunc) gtk_cell_renderer_toggle_init,
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};
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cell_toggle_type = g_type_register_static (GTK_TYPE_CELL_RENDERER, "GtkCellRendererToggle", &cell_toggle_info);
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}
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return cell_toggle_type;
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}
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static void
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gtk_cell_renderer_toggle_init (GtkCellRendererToggle *celltoggle)
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{
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celltoggle->state = FALSE;
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celltoggle->radio = FALSE;
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GTK_CELL_RENDERER (celltoggle)->xpad = 2;
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GTK_CELL_RENDERER (celltoggle)->ypad = 2;
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}
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static void
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gtk_cell_renderer_toggle_class_init (GtkCellRendererToggleClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
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object_class->get_param = gtk_cell_renderer_toggle_get_param;
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object_class->set_param = gtk_cell_renderer_toggle_set_param;
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cell_class->get_size = gtk_cell_renderer_toggle_get_size;
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cell_class->render = gtk_cell_renderer_toggle_render;
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cell_class->event = gtk_cell_renderer_toggle_event;
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g_object_class_install_param (object_class,
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PROP_STATE,
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g_param_spec_boolean ("state",
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_("Toggle state"),
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_("The toggle-state of the button."),
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FALSE,
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G_PARAM_READABLE |
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G_PARAM_WRITABLE));
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g_object_class_install_param (object_class,
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PROP_RADIO,
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g_param_spec_boolean ("radio",
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_("Radio state"),
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_("Draw the toggle button as a radio button."),
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FALSE,
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G_PARAM_READABLE |
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G_PARAM_WRITABLE));
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toggle_cell_signals[TOGGLED] =
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gtk_signal_new ("toggled",
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GTK_RUN_LAST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkCellRendererToggleClass, toggled),
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gtk_marshal_NONE__POINTER,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_POINTER);
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gtk_object_class_add_signals (GTK_OBJECT_CLASS (object_class), toggle_cell_signals, LAST_SIGNAL);
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}
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static void
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gtk_cell_renderer_toggle_get_param (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec,
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const gchar *trailer)
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{
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GtkCellRendererToggle *celltoggle = GTK_CELL_RENDERER_TOGGLE (object);
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switch (param_id)
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{
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case PROP_STATE:
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g_value_init (value, G_TYPE_BOOLEAN);
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g_value_set_boolean (value, celltoggle->state);
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break;
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case PROP_RADIO:
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g_value_init (value, G_TYPE_BOOLEAN);
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g_value_set_boolean (value, celltoggle->radio);
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break;
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default:
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break;
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}
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}
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static void
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gtk_cell_renderer_toggle_set_param (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec,
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const gchar *trailer)
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{
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GtkCellRendererToggle *celltoggle = GTK_CELL_RENDERER_TOGGLE (object);
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switch (param_id)
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{
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case PROP_STATE:
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celltoggle->state = g_value_get_boolean (value);
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break;
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case PROP_RADIO:
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celltoggle->radio = g_value_get_boolean (value);
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break;
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default:
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break;
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}
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}
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GtkCellRenderer *
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gtk_cell_renderer_toggle_new (void)
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{
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return GTK_CELL_RENDERER (gtk_type_new (gtk_cell_renderer_toggle_get_type ()));
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}
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static void
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gtk_cell_renderer_toggle_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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gint *width,
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gint *height)
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{
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if (width)
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*width = (gint) cell->xpad * 2 + TOGGLE_WIDTH;
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if (height)
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*height = (gint) cell->ypad * 2 + TOGGLE_WIDTH;
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}
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static void
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gtk_cell_renderer_toggle_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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guint flags)
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{
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GtkCellRendererToggle *celltoggle = (GtkCellRendererToggle *) cell;
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gint width, height;
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gint real_xoffset, real_yoffset;
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width = MIN (TOGGLE_WIDTH, cell_area->width - cell->xpad * 2);
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height = MIN (TOGGLE_WIDTH, cell_area->height - cell->ypad * 2);
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if (width <= 0 || height <= 0)
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return;
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real_xoffset = cell->xalign * (cell_area->width - width - (2 * cell->xpad));
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real_xoffset = MAX (real_xoffset, 0) + cell->xpad;
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real_yoffset = cell->yalign * (cell_area->height - height - (2 * cell->ypad));
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real_yoffset = MAX (real_yoffset, 0) + cell->ypad;
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gdk_gc_set_clip_rectangle (widget->style->black_gc, cell_area);
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if (!celltoggle->radio)
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{
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gdk_draw_rectangle (window,
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widget->style->black_gc,
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FALSE,
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cell_area->x + real_xoffset,
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cell_area->y + real_yoffset,
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width, height);
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if (celltoggle->state)
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{
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gdk_draw_line (window,
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widget->style->black_gc,
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cell_area->x + real_xoffset,
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cell_area->y + real_yoffset,
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cell_area->x + real_xoffset + width,
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cell_area->y + real_yoffset + height);
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gdk_draw_line (window,
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widget->style->black_gc,
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cell_area->x + real_xoffset + width,
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cell_area->y + real_yoffset,
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cell_area->x + real_xoffset,
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cell_area->y + real_yoffset + height);
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}
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}
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else
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{
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gdk_draw_arc (window,
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widget->style->black_gc,
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FALSE,
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cell_area->x + real_xoffset,
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cell_area->y + real_yoffset,
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width,
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height,
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0, 360*64);
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if (celltoggle->state)
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{
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gdk_draw_arc (window,
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widget->style->black_gc,
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TRUE,
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cell_area->x + real_xoffset + 2,
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cell_area->y + real_yoffset + 2,
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width - 4,
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height - 4,
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0, 360*64);
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}
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}
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gdk_gc_set_clip_rectangle (widget->style->black_gc, NULL);
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}
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static gint
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gtk_cell_renderer_toggle_event (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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gchar *path,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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guint flags)
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{
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gtk_signal_emit (GTK_OBJECT (cell), toggle_cell_signals[TOGGLED], path);
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return TRUE;
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}
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void
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gtk_cell_renderer_toggle_set_radio (GtkCellRendererToggle *toggle,
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gboolean radio)
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{
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g_return_if_fail (toggle != NULL);
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g_return_if_fail (GTK_IS_CELL_RENDERER_TOGGLE (toggle));
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toggle->radio = radio;
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}
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