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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Marco theme widget (displays themed draw operations) */
/*
* Copyright (C) 2002 Havoc Pennington
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "themewidget.h"
#include <math.h>
static void meta_area_class_init (MetaAreaClass *klass);
static void meta_area_init (MetaArea *area);
static void meta_area_size_request (GtkWidget *widget,
GtkRequisition *req);
static gint meta_area_expose (GtkWidget *widget,
GdkEventExpose *event);
static void meta_area_finalize (GObject *object);
static GtkMiscClass *parent_class;
GType
meta_area_get_type (void)
{
static GType area_type = 0;
if (!area_type)
{
static const GtkTypeInfo area_info =
{
"MetaArea",
sizeof (MetaArea),
sizeof (MetaAreaClass),
(GtkClassInitFunc) meta_area_class_init,
(GtkObjectInitFunc) meta_area_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
area_type = gtk_type_unique (GTK_TYPE_MISC, &area_info);
}
return area_type;
}
static void
meta_area_class_init (MetaAreaClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = g_type_class_peek (gtk_misc_get_type ());
gobject_class->finalize = meta_area_finalize;
widget_class->expose_event = meta_area_expose;
widget_class->size_request = meta_area_size_request;
}
static void
meta_area_init (MetaArea *area)
{
GTK_WIDGET_SET_FLAGS (area, GTK_NO_WINDOW);
}
GtkWidget*
meta_area_new (void)
{
MetaArea *area;
area = gtk_type_new (META_TYPE_AREA);
return GTK_WIDGET (area);
}
static void
meta_area_finalize (GObject *object)
{
MetaArea *area;
area = META_AREA (object);
if (area->dnotify)
(* area->dnotify) (area->user_data);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gint
meta_area_expose (GtkWidget *widget,
GdkEventExpose *event)
{
MetaArea *area;
GtkMisc *misc;
gint x, y;
gfloat xalign;
g_return_val_if_fail (META_IS_AREA (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
area = META_AREA (widget);
misc = GTK_MISC (widget);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
xalign = misc->xalign;
else
xalign = 1.0 - misc->xalign;
x = floor (widget->allocation.x + misc->xpad
+ ((widget->allocation.width - widget->requisition.width) * xalign)
+ 0.5);
y = floor (widget->allocation.y + misc->ypad
+ ((widget->allocation.height - widget->requisition.height) * misc->yalign)
+ 0.5);
if (area->expose_func)
{
(* area->expose_func) (area, event, x, y,
area->user_data);
}
}
return FALSE;
}
static void
meta_area_size_request (GtkWidget *widget,
GtkRequisition *req)
{
MetaArea *area;
area = META_AREA (widget);
req->width = 0;
req->height = 0;
if (area->size_func)
{
(* area->size_func) (area, &req->width, &req->height,
area->user_data);
}
}
void
meta_area_setup (MetaArea *area,
MetaAreaSizeFunc size_func,
MetaAreaExposeFunc expose_func,
void *user_data,
GDestroyNotify dnotify)
{
if (area->dnotify)
(* area->dnotify) (area->user_data);
area->size_func = size_func;
area->expose_func = expose_func;
area->user_data = user_data;
area->dnotify = dnotify;
gtk_widget_queue_resize (GTK_WIDGET (area));
}
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