e733ca0930
* libgimpwidgets/gimppreviewarea.c * libgimpwidgets/gimppreviewarea.h: added two functions: gimp_preview_area_blend() to draw the blending of two buffers with an opacity parameter, and gimp_preview_area_mask() to draw the blending of two buffers, with a mask buffer. The code still needs some polish, though. * libgimp/gimpdrawablepreview.c * libgimp/gimpdrawablepreview.h: use gimp_preview_area_mask() in gimp_drawable_preview_draw(), so the previews are now much more accurate (respecting the selection, if any). Also made the buf parameter of gimp_drawable_preview_draw() a pointer to constants.
68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpdrawablepreview.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 2 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GIMP_DRAWABLE_PREVIEW_H__
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#define __GIMP_DRAWABLE_PREVIEW_H__
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#include <libgimpwidgets/gimppreview.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 GIMP_TYPE_DRAWABLE_PREVIEW (gimp_drawable_preview_get_type ())
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#define GIMP_DRAWABLE_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_DRAWABLE_PREVIEW, GimpDrawablePreview))
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#define GIMP_DRAWABLE_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_DRAWABLE_PREVIEW, GimpDrawablePreviewClass))
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#define GIMP_IS_DRAWABLE_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_DRAWABLE_PREVIEW))
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#define GIMP_IS_DRAWABLE_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_DRAWABLE_PREVIEW))
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#define GIMP_DRAWABLE_PREVIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DRAWABLE_PREVIEW, GimpDrawablePreviewClass))
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typedef struct _GimpDrawablePreviewClass GimpDrawablePreviewClass;
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struct _GimpDrawablePreview
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{
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GimpPreview parent_instance;
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GimpDrawable *drawable;
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};
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struct _GimpDrawablePreviewClass
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{
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GimpPreviewClass parent_class;
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};
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GType gimp_drawable_preview_get_type (void) G_GNUC_CONST;
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GtkWidget * gimp_drawable_preview_new (GimpDrawable *drawable,
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gboolean *toggle);
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void gimp_drawable_preview_draw (GimpDrawablePreview *preview,
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const guchar *buf);
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G_END_DECLS
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#endif /* __GIMP_DRAWABLE_PREVIEW_H__ */
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