gimp/libgimpwidgets/gimppixmap.c

206 lines
4.6 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimppixmap.c
* Copyright (C) 2000 Michael Natterer <mitch@gimp.org>
*
* 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.
*/
#include <stdio.h>
#include <gtk/gtk.h>
#include "gimppixmap.h"
struct _GimpPixmap
{
GtkPixmap pixmap;
gchar **xpm_data;
};
static void gimp_pixmap_destroy (GtkObject *object);
static void gimp_pixmap_realize (GtkWidget *widget);
static void gimp_pixmap_create_from_xpm_d (GimpPixmap *pixmap);
static GtkPixmapClass *parent_class = NULL;
static void
gimp_pixmap_destroy (GtkObject *object)
{
GimpPixmap *pixmap;
g_return_if_fail (pixmap = GIMP_PIXMAP (object));
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
gimp_pixmap_class_init (GimpPixmapClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass *) class;
parent_class = gtk_type_class (gtk_pixmap_get_type ());
object_class->destroy = gimp_pixmap_destroy;
widget_class->realize = gimp_pixmap_realize;
}
static void
gimp_pixmap_init (GimpPixmap *pixmap)
{
pixmap->xpm_data = NULL;
}
GtkType
gimp_pixmap_get_type (void)
{
static guint pixmap_type = 0;
if (!pixmap_type)
{
GtkTypeInfo pixmap_info =
{
"GimpPixmap",
sizeof (GimpPixmap),
sizeof (GimpPixmapClass),
(GtkClassInitFunc) gimp_pixmap_class_init,
(GtkObjectInitFunc) gimp_pixmap_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
pixmap_type = gtk_type_unique (gtk_pixmap_get_type (), &pixmap_info);
}
return pixmap_type;
}
/**
* gimp_pixmap_new:
* @xpm_data: A pointer to a XPM data structure as found in XPM files.
*
* Creates a new #GimpPixmap widget.
*
* Returns: A pointer to the new #GimpPixmap widget.
*
*/
GtkWidget *
gimp_pixmap_new (gchar **xpm_data)
{
GimpPixmap *pixmap;
pixmap = gtk_type_new (gimp_pixmap_get_type ());
gtk_pixmap_set_build_insensitive (GTK_PIXMAP (pixmap), TRUE);
gimp_pixmap_set (pixmap, xpm_data);
return GTK_WIDGET (pixmap);
}
/**
* gimp_pixmap_set:
* @pixmap: The pixmap widget you want to set the new xpm_data for.
* @xpm_data: A pointer to a XPM data structure as found in XPM files.
*
* Sets a new image for an existing #GimpPixmap widget.
*
*/
void
gimp_pixmap_set (GimpPixmap *pixmap,
gchar **xpm_data)
{
g_return_if_fail (pixmap != NULL);
g_return_if_fail (GIMP_IS_PIXMAP (pixmap));
pixmap->xpm_data = xpm_data;
GTK_WIDGET (pixmap)->requisition.width = 0;
GTK_WIDGET (pixmap)->requisition.height = 0;
if (! GTK_WIDGET_REALIZED (GTK_WIDGET (pixmap)))
{
if (xpm_data)
{
gint width, height;
if (sscanf (xpm_data[0], "%d %d", &width, &height) != 2)
{
g_warning ("passed pointer is no XPM data");
}
else
{
GTK_WIDGET (pixmap)->requisition.width =
width + GTK_MISC (pixmap)->xpad * 2;
GTK_WIDGET (pixmap)->requisition.height =
height + GTK_MISC (pixmap)->ypad * 2;
}
}
}
else
{
gimp_pixmap_create_from_xpm_d (pixmap);
}
}
static void
gimp_pixmap_realize (GtkWidget *widget)
{
if (GTK_WIDGET_CLASS (parent_class)->realize)
(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
gimp_pixmap_create_from_xpm_d (GIMP_PIXMAP (widget));
}
static void
gimp_pixmap_create_from_xpm_d (GimpPixmap *pixmap)
{
GtkStyle *style;
GdkPixmap *gdk_pixmap = NULL;
GdkBitmap *mask = NULL;
if (pixmap->xpm_data)
{
GtkWidget *widget;
widget = GTK_WIDGET (pixmap);
style = gtk_widget_get_style (widget);
gdk_pixmap = gdk_pixmap_create_from_xpm_d (widget->window,
&mask,
&style->bg[GTK_STATE_NORMAL],
pixmap->xpm_data);
}
gtk_pixmap_set (GTK_PIXMAP (pixmap), gdk_pixmap, mask);
if (gdk_pixmap)
gdk_pixmap_unref (gdk_pixmap);
if (mask)
gdk_bitmap_unref (mask);
}