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Wed Jun 23 23:52:54 BST 1999 Andy Thomas <alt@gimp.org> * gimp/app/gimppreviewcache.c * gimp/app/gimppreviewcache.h * gimp/app/drawable_cmds.c * gimp/app/gdisplay.c * gimp/app/gimpdrawableP.h * gimp/app/gimage_cmds.c * gimp/app/Makefile.am * gimp/app/layers_dialog.c * gimp/app/channel.c * gimp/app/lc_dialog.c * gimp/app/lc_dialog.h * gimp/app/lc_dialogP.h * gimp/app/layer.c * gimp/app/gimpdrawable.c * gimp/app/internal_procs.c * gimp/libgimp/gimp.h * gimp/libgimp/gimpimage.c * gimp/libgimp/gimpdrawable.c * gimp/libgimp/gimpmenu.c * gimp/tools/pdbgen/pdb/drawable.pdb * gimp/tools/pdbgen/pdb/gimage.pdb Added thumbnail image preview functions. Previews are visible on the L&C&P dialogs as well as in the drawables/channels/ menus generated for plugins (see the bumpmap & Mapobject plugins). PDB interface exists to simply extract a thumbnail preview of a given size. This is much quicker & more efficient than getting the image data tile-by-tile if you only need a small image since a "preview cache" has been implemented. This cache also reduces the number of times the tiles cached is scanned since smaller previews are always generated from large ones if they exists and are valid. Some possible usages (I don't intend to implement these ideas. Just suggestions). More plugins using the thumbnail preview (ie any that use multiple images). Indication of "active image" somewhere..... Actually almost anywhere a drawable/image name appears.
68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GIMPDRAWABLEP_H__
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#define __GIMPDRAWABLEP_H__
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#include "gimpobjectP.h"
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#include "gimpdrawable.h"
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#include "parasitelistF.h"
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#include "gimppreviewcache.h"
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struct _GimpDrawable
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{
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GimpObject data;
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char *name; /* name of drawable */
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TileManager *tiles; /* tiles for drawable data */
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int visible; /* controls visibility */
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int width, height; /* size of drawable */
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int offset_x, offset_y; /* offset of layer in image */
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int bytes; /* bytes per pixel */
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int dirty; /* dirty bit */
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int ID; /* provides a unique ID */
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guint32 tattoo; /* provides a perminant ID */
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GimpImage* gimage; /* gimage owner */
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int type; /* type of drawable */
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int has_alpha; /* drawable has alpha */
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ParasiteList *parasites; /* Plug-in parasite data */
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/* Preview variables */
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GSList *preview_cache; /* preview caches of the channel */
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int preview_valid; /* is the preview valid? */
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};
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struct _GimpDrawableClass
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{
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GimpObjectClass parent_class;
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void (*invalidate_preview) (GtkObject *);
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};
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typedef struct _GimpDrawableClass GimpDrawableClass;
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#define GIMP_DRAWABLE_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GIMP_TYPE_DRAWABLE, GimpDrawableClass))
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#define GIMP_IS_DRAWABLE_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_DRAWABLE))
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void gimp_drawable_configure (GimpDrawable *, GimpImage*,
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gint, gint, gint, gchar*);
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#endif /* __GIMPDRAWABLEP_H__ */
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