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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GTK_PREVIEW_H__
#define __GTK_PREVIEW_H__
#include <gtk/gtkwidget.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GTK_TYPE_PREVIEW (gtk_preview_get_type ())
#define GTK_PREVIEW(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_PREVIEW, GtkPreview))
#define GTK_PREVIEW_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_PREVIEW, GtkPreviewClass))
#define GTK_IS_PREVIEW(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_PREVIEW))
#define GTK_IS_PREVIEW_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PREVIEW))
typedef struct _GtkPreview GtkPreview;
typedef struct _GtkPreviewInfo GtkPreviewInfo;
typedef union _GtkDitherInfo GtkDitherInfo;
typedef struct _GtkPreviewClass GtkPreviewClass;
struct _GtkPreview
{
GtkWidget widget;
guchar *buffer;
guint16 buffer_width;
guint16 buffer_height;
guint16 bpp;
guint16 rowstride;
GdkRgbDither dither;
guint type : 1;
guint expand : 1;
};
struct _GtkPreviewInfo
{
GdkVisual *visual;
GdkColormap *cmap;
guchar *lookup;
gdouble gamma;
};
union _GtkDitherInfo
{
gushort s[2];
guchar c[4];
};
struct _GtkPreviewClass
{
GtkWidgetClass parent_class;
GtkPreviewInfo info;
};
GtkType gtk_preview_get_type (void);
void gtk_preview_uninit (void);
GtkWidget* gtk_preview_new (GtkPreviewType type);
void gtk_preview_size (GtkPreview *preview,
gint width,
gint height);
void gtk_preview_put (GtkPreview *preview,
GdkWindow *window,
GdkGC *gc,
gint srcx,
gint srcy,
gint destx,
gint desty,
gint width,
gint height);
void gtk_preview_draw_row (GtkPreview *preview,
guchar *data,
gint x,
gint y,
gint w);
void gtk_preview_set_expand (GtkPreview *preview,
gboolean expand);
void gtk_preview_set_gamma (double gamma);
void gtk_preview_set_color_cube (guint nred_shades,
guint ngreen_shades,
guint nblue_shades,
guint ngray_shades);
void gtk_preview_set_install_cmap (gint install_cmap);
void gtk_preview_set_reserved (gint nreserved);
void gtk_preview_set_dither (GtkPreview *preview,
GdkRgbDither dither);
GdkVisual* gtk_preview_get_visual (void);
GdkColormap* gtk_preview_get_cmap (void);
GtkPreviewInfo* gtk_preview_get_info (void);
/* This function reinitializes the preview colormap and visual from
* the current gamma/color_cube/install_cmap settings. It must only
* be called if there are no previews or users's of the preview
* colormap in existence.
*/
void gtk_preview_reset (void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GTK_PREVIEW_H__ */
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