PIKApp/libpikawidgets/pikapreview.h

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2023-09-26 00:35:21 +02:00
/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikapreview.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 3 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, see
* <https://www.gnu.org/licenses/>.
*/
#if !defined (__PIKA_WIDGETS_H_INSIDE__) && !defined (PIKA_WIDGETS_COMPILATION)
#error "Only <libpikawidgets/pikawidgets.h> can be included directly."
#endif
#ifndef __PIKA_PREVIEW_H__
#define __PIKA_PREVIEW_H__
G_BEGIN_DECLS
/* For information look into the C source or the html documentation */
#define PIKA_TYPE_PREVIEW (pika_preview_get_type ())
#define PIKA_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_PREVIEW, PikaPreview))
#define PIKA_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_PREVIEW, PikaPreviewClass))
#define PIKA_IS_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_PREVIEW))
#define PIKA_IS_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_PREVIEW))
#define PIKA_PREVIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_PREVIEW, PikaPreviewClass))
typedef struct _PikaPreviewPrivate PikaPreviewPrivate;
typedef struct _PikaPreviewClass PikaPreviewClass;
struct _PikaPreview
{
GtkBox parent_instance;
PikaPreviewPrivate *priv;
};
struct _PikaPreviewClass
{
GtkBoxClass parent_class;
/* virtual methods */
void (* draw) (PikaPreview *preview);
void (* draw_thumb) (PikaPreview *preview,
PikaPreviewArea *area,
gint width,
gint height);
void (* draw_buffer) (PikaPreview *preview,
const guchar *buffer,
gint rowstride);
void (* set_cursor) (PikaPreview *preview);
void (* transform) (PikaPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
void (* untransform) (PikaPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
/* signal */
void (* invalidated) (PikaPreview *preview);
/* Padding for future expansion */
void (* _pika_reserved1) (void);
void (* _pika_reserved2) (void);
void (* _pika_reserved3) (void);
void (* _pika_reserved4) (void);
void (* _pika_reserved5) (void);
void (* _pika_reserved6) (void);
void (* _pika_reserved7) (void);
void (* _pika_reserved8) (void);
};
GType pika_preview_get_type (void) G_GNUC_CONST;
void pika_preview_set_update (PikaPreview *preview,
gboolean update);
gboolean pika_preview_get_update (PikaPreview *preview);
void pika_preview_set_bounds (PikaPreview *preview,
gint xmin,
gint ymin,
gint xmax,
gint ymax);
void pika_preview_get_bounds (PikaPreview *preview,
gint *xmin,
gint *ymin,
gint *xmax,
gint *ymax);
void pika_preview_set_size (PikaPreview *preview,
gint width,
gint height);
void pika_preview_get_size (PikaPreview *preview,
gint *width,
gint *height);
void pika_preview_set_offsets (PikaPreview *preview,
gint xoff,
gint yoff);
void pika_preview_get_offsets (PikaPreview *preview,
gint *xoff,
gint *yoff);
void pika_preview_get_position (PikaPreview *preview,
gint *x,
gint *y);
void pika_preview_transform (PikaPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
void pika_preview_untransform (PikaPreview *preview,
gint src_x,
gint src_y,
gint *dest_x,
gint *dest_y);
GtkWidget * pika_preview_get_frame (PikaPreview *preview);
GtkWidget * pika_preview_get_grid (PikaPreview *preview);
GtkWidget * pika_preview_get_area (PikaPreview *preview);
void pika_preview_draw (PikaPreview *preview);
void pika_preview_draw_buffer (PikaPreview *preview,
const guchar *buffer,
gint rowstride);
void pika_preview_invalidate (PikaPreview *preview);
void pika_preview_set_default_cursor (PikaPreview *preview,
GdkCursor *cursor);
GdkCursor * pika_preview_get_default_cursor (PikaPreview *preview);
GtkWidget * pika_preview_get_controls (PikaPreview *preview);
G_END_DECLS
#endif /* __PIKA_PREVIEW_H__ */