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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimppreview.h
*
* 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.
*/
#ifndef __GIMP_PREVIEW_H__
#define __GIMP_PREVIEW_H__
G_BEGIN_DECLS
/* For information look into the C source or the html documentation */
#define GIMP_TYPE_PREVIEW (gimp_preview_get_type ())
#define GIMP_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_PREVIEW, GimpPreview))
#define GIMP_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_PREVIEW, GimpPreviewClass))
#define GIMP_IS_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_PREVIEW))
#define GIMP_IS_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_PREVIEW))
#define GIMP_PREVIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PREVIEW, GimpPreviewClass))
typedef struct _GimpPreviewClass GimpPreviewClass;
struct _GimpPreview
{
GtkVBox parent_instance;
gboolean update_preview;
/*< protected >*/
GtkWidget *area;
GtkWidget *table;
GtkWidget *frame;
GtkWidget *toggle;
GdkCursor *cursor_busy;
GdkCursor *default_cursor;
/*< private >*/
gint xoff, yoff;
gint xmin, xmax, ymin, ymax;
gint width, height;
guint timeout_id;
};
struct _GimpPreviewClass
{
GtkVBoxClass parent_class;
/* virtual methods */
void (* draw) (GimpPreview *preview);
void (* draw_thumb) (GimpPreview *preview,
GimpPreviewArea *area,
gint width,
gint height);
void (* draw_buffer) (GimpPreview *preview,
const guchar *buffer,
gint rowstride);
void (* set_cursor) (GimpPreview *preview);
/* signal */
void (* invalidated) (GimpPreview *preview);
/* virtual methods */
void (* transform) (GimpPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
void (* untransform) (GimpPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
/* Padding for future expansion */
void (* _gimp_reserved3) (void);
void (* _gimp_reserved4) (void);
};
GType gimp_preview_get_type (void) G_GNUC_CONST;
void gimp_preview_set_update (GimpPreview *preview,
gboolean update);
gboolean gimp_preview_get_update (GimpPreview *preview);
void gimp_preview_set_bounds (GimpPreview *preview,
gint xmin,
gint ymin,
gint xmax,
gint ymax);
void gimp_preview_get_position (GimpPreview *preview,
gint *x,
gint *y);
void gimp_preview_get_size (GimpPreview *preview,
gint *width,
gint *height);
void gimp_preview_transform (GimpPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
void gimp_preview_untransform (GimpPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
GtkWidget * gimp_preview_get_area (GimpPreview *preview);
void gimp_preview_draw (GimpPreview *preview);
void gimp_preview_draw_buffer (GimpPreview *preview,
const guchar *buffer,
gint rowstride);
void gimp_preview_invalidate (GimpPreview *preview);
void gimp_preview_set_default_cursor (GimpPreview *preview,
GdkCursor *cursor);
GtkWidget * gimp_preview_get_controls (GimpPreview *preview);
G_END_DECLS
#endif /* __GIMP_PREVIEW_H__ */
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