160 lines
6.6 KiB
C
160 lines
6.6 KiB
C
/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* pikapreview.h
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#if !defined (__PIKA_WIDGETS_H_INSIDE__) && !defined (PIKA_WIDGETS_COMPILATION)
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#error "Only <libpikawidgets/pikawidgets.h> can be included directly."
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#endif
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#ifndef __PIKA_PREVIEW_H__
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#define __PIKA_PREVIEW_H__
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G_BEGIN_DECLS
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/* For information look into the C source or the html documentation */
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#define PIKA_TYPE_PREVIEW (pika_preview_get_type ())
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#define PIKA_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_PREVIEW, PikaPreview))
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#define PIKA_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_PREVIEW, PikaPreviewClass))
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#define PIKA_IS_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_PREVIEW))
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#define PIKA_IS_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_PREVIEW))
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#define PIKA_PREVIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_PREVIEW, PikaPreviewClass))
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typedef struct _PikaPreviewPrivate PikaPreviewPrivate;
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typedef struct _PikaPreviewClass PikaPreviewClass;
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struct _PikaPreview
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{
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GtkBox parent_instance;
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PikaPreviewPrivate *priv;
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};
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struct _PikaPreviewClass
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{
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GtkBoxClass parent_class;
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/* virtual methods */
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void (* draw) (PikaPreview *preview);
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void (* draw_thumb) (PikaPreview *preview,
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PikaPreviewArea *area,
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gint width,
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gint height);
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void (* draw_buffer) (PikaPreview *preview,
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const guchar *buffer,
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gint rowstride);
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void (* set_cursor) (PikaPreview *preview);
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void (* transform) (PikaPreview *preview,
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gint src_x,
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gint src_y,
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gint *dest_x,
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gint *dest_y);
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void (* untransform) (PikaPreview *preview,
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gint src_x,
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gint src_y,
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gint *dest_x,
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gint *dest_y);
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/* signal */
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void (* invalidated) (PikaPreview *preview);
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/* Padding for future expansion */
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void (* _pika_reserved1) (void);
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void (* _pika_reserved2) (void);
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void (* _pika_reserved3) (void);
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void (* _pika_reserved4) (void);
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void (* _pika_reserved5) (void);
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void (* _pika_reserved6) (void);
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void (* _pika_reserved7) (void);
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void (* _pika_reserved8) (void);
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};
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GType pika_preview_get_type (void) G_GNUC_CONST;
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void pika_preview_set_update (PikaPreview *preview,
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gboolean update);
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gboolean pika_preview_get_update (PikaPreview *preview);
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void pika_preview_set_bounds (PikaPreview *preview,
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gint xmin,
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gint ymin,
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gint xmax,
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gint ymax);
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void pika_preview_get_bounds (PikaPreview *preview,
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gint *xmin,
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gint *ymin,
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gint *xmax,
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gint *ymax);
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void pika_preview_set_size (PikaPreview *preview,
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gint width,
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gint height);
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void pika_preview_get_size (PikaPreview *preview,
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gint *width,
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gint *height);
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void pika_preview_set_offsets (PikaPreview *preview,
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gint xoff,
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gint yoff);
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void pika_preview_get_offsets (PikaPreview *preview,
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gint *xoff,
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gint *yoff);
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void pika_preview_get_position (PikaPreview *preview,
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gint *x,
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gint *y);
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void pika_preview_transform (PikaPreview *preview,
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gint src_x,
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gint src_y,
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gint *dest_x,
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gint *dest_y);
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void pika_preview_untransform (PikaPreview *preview,
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gint src_x,
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gint src_y,
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gint *dest_x,
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gint *dest_y);
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GtkWidget * pika_preview_get_frame (PikaPreview *preview);
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GtkWidget * pika_preview_get_grid (PikaPreview *preview);
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GtkWidget * pika_preview_get_area (PikaPreview *preview);
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void pika_preview_draw (PikaPreview *preview);
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void pika_preview_draw_buffer (PikaPreview *preview,
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const guchar *buffer,
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gint rowstride);
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void pika_preview_invalidate (PikaPreview *preview);
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void pika_preview_set_default_cursor (PikaPreview *preview,
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GdkCursor *cursor);
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GdkCursor * pika_preview_get_default_cursor (PikaPreview *preview);
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GtkWidget * pika_preview_get_controls (PikaPreview *preview);
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G_END_DECLS
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#endif /* __PIKA_PREVIEW_H__ */
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