d240f623f1
2001-05-15 Michael Natterer <mitch@gimp.org> * configure.in: new directory app/base/ * app/Makefile.am * app/boundary.[ch] * app/brush_scale.[ch] * app/gimpchecks.h * app/gimplut.[ch] * app/pixel_processor.[ch] * app/pixel_region.[ch] * app/pixel_surround.[ch] * app/temp_buf.[ch] * app/tile.[ch] * app/tile_cache.[ch] * app/tile_manager.[ch] * app/tile_manager_pvt.h * app/tile_pvt.h * app/tile_swap.[ch]: moved to base/ * app/base/Makefile.am * app/base/base-types.h * app/base/*: new directory for the sub-object pixel maniplation and storage stuff. Does not include Gtk+ or anything outside base/. Did some cleanup in all files. * app/appenums.h * app/apptypes.h * app/core/gimpimage.h: removed types which are now in base/base-types.h. * app/base/base-config.[ch] * app/gimprc.[ch]: put the config variables for base/ to their own file so base/ doesn not have to include gimprc.h (does not yet work, i.e. the variables are un-configurable right now) * app/main.c: set a log handler for "Gimp-Base". * app/paint-funcs/Makefile.am * app/paint-funcs/paint-funcs.[ch]: removed the color hash which maps RGB to color indices because it's a totally standalone system which has nothing to do with the paint-funcs and introduced a GimpImage dependency. paint-funcs/ should be considered on the same sub-object (glib-only) level as base/, only in a different directory. * app/core/Makefile.am * app/core/gimpimage-colorhash.[ch]: put the color hash here. * app/gimage.c: don't invalidate the color hash here... * app/core/gimpimage.c: ... but in the colormap_changed() default inplementation. Initialize the hash in class_init(). * tools/pdbgen/Makefile.am: scan app/base/base-types.h for enums. * tools/pdbgen/enums.pl: regenerated. * app/[lots] * app/core/[of] * app/gui/[files] * app/pdb/[all] * app/tools/[over] * app/widgets/[the] * tools/pdbgen/pdb/[place]: changed #includes accordingly. And use base_config->value instead of the stuff from gimprc.h.
323 lines
8.1 KiB
C
323 lines
8.1 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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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpmath/gimpmath.h"
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#include "core-types.h"
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#include "base/pixel-region.h"
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#include "base/tile-manager.h"
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#include "paint-funcs/paint-funcs.h"
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#include "drawable.h"
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#include "gimpcontext.h"
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#include "gimpdrawable.h"
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#include "gimpdrawable-offset.h"
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#include "gimpimage.h"
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void
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gimp_drawable_offset (GimpDrawable *drawable,
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gboolean wrap_around,
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GimpOffsetType fill_type,
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gint offset_x,
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gint offset_y)
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{
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PixelRegion srcPR, destPR;
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TileManager *new_tiles;
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gint width, height;
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gint src_x, src_y;
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gint dest_x, dest_y;
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guchar fill[MAX_CHANNELS] = { 0 };
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if (! drawable)
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return;
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width = gimp_drawable_width (drawable);
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height = gimp_drawable_height (drawable);
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if (wrap_around)
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{
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/* avoid modulo operation on negative values */
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while (offset_x < 0)
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offset_x += width;
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while (offset_y < 0)
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offset_y += height;
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offset_x %= width;
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offset_y %= height;
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}
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else
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{
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offset_x = CLAMP (offset_x, -width, width);
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offset_y = CLAMP (offset_y, -height, height);
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}
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if (offset_x == 0 && offset_y == 0)
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return;
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new_tiles = tile_manager_new (width, height, gimp_drawable_bytes (drawable));
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if (offset_x >= 0)
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{
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src_x = 0;
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dest_x = offset_x;
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width = CLAMP ((width - offset_x), 0, width);
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}
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else
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{
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src_x = -offset_x;
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dest_x = 0;
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width = CLAMP ((width + offset_x), 0, width);
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}
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if (offset_y >= 0)
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{
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src_y = 0;
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dest_y = offset_y;
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height = CLAMP ((height - offset_y), 0, height);
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}
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else
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{
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src_y = -offset_y;
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dest_y = 0;
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height = CLAMP ((height + offset_y), 0, height);
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}
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/* Copy the center region */
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if (width && height)
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{
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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src_x, src_y, width, height, FALSE);
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pixel_region_init (&destPR, new_tiles,
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dest_x, dest_y, width, height, TRUE);
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copy_region (&srcPR, &destPR);
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}
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/* Copy appropriately for wrap around */
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if (wrap_around == TRUE)
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{
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if (offset_x >= 0 && offset_y >= 0)
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{
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src_x = gimp_drawable_width (drawable) - offset_x;
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src_y = gimp_drawable_height (drawable) - offset_y;
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}
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else if (offset_x >= 0 && offset_y < 0)
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{
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src_x = gimp_drawable_width (drawable) - offset_x;
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src_y = 0;
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}
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else if (offset_x < 0 && offset_y >= 0)
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{
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src_x = 0;
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src_y = gimp_drawable_height (drawable) - offset_y;
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}
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else if (offset_x < 0 && offset_y < 0)
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{
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src_x = 0;
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src_y = 0;
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}
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dest_x = (src_x + offset_x) % gimp_drawable_width (drawable);
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if (dest_x < 0)
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dest_x = gimp_drawable_width (drawable) + dest_x;
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dest_y = (src_y + offset_y) % gimp_drawable_height (drawable);
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if (dest_y < 0)
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dest_y = gimp_drawable_height (drawable) + dest_y;
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/* intersecting region */
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if (offset_x != 0 && offset_y != 0)
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{
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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src_x, src_y, ABS (offset_x), ABS (offset_y)
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, FALSE);
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pixel_region_init (&destPR, new_tiles,
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dest_x, dest_y, ABS (offset_x), ABS (offset_y),
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TRUE);
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copy_region (&srcPR, &destPR);
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}
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/* X offset */
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if (offset_x != 0)
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{
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if (offset_y >= 0)
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{
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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src_x, 0, ABS (offset_x),
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gimp_drawable_height (drawable) - ABS (offset_y),
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FALSE);
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pixel_region_init (&destPR, new_tiles,
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dest_x, dest_y + offset_y,
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ABS (offset_x),
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gimp_drawable_height (drawable) - ABS (offset_y),
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TRUE);
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}
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else if (offset_y < 0)
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{
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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src_x, src_y - offset_y,
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ABS (offset_x),
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gimp_drawable_height (drawable) - ABS (offset_y),
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FALSE);
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pixel_region_init (&destPR, new_tiles,
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dest_x, 0,
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ABS (offset_x),
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gimp_drawable_height (drawable) - ABS (offset_y),
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TRUE);
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}
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copy_region (&srcPR, &destPR);
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}
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/* X offset */
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if (offset_y != 0)
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{
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if (offset_x >= 0)
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{
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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0, src_y,
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gimp_drawable_width (drawable) - ABS (offset_x),
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ABS (offset_y), FALSE);
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pixel_region_init (&destPR, new_tiles, dest_x + offset_x, dest_y,
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gimp_drawable_width (drawable) - ABS (offset_x),
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ABS (offset_y), TRUE);
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}
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else if (offset_x < 0)
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{
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pixel_region_init (&srcPR, gimp_drawable_data (drawable),
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src_x - offset_x, src_y,
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gimp_drawable_width (drawable) - ABS (offset_x),
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ABS (offset_y), FALSE);
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pixel_region_init (&destPR, new_tiles, 0, dest_y,
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gimp_drawable_width (drawable) - ABS (offset_x),
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ABS (offset_y), TRUE);
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}
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copy_region (&srcPR, &destPR);
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}
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}
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/* Otherwise, fill the vacated regions */
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else
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{
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if (fill_type == OFFSET_BACKGROUND)
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{
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GimpRGB color;
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gimp_context_get_background (NULL, &color);
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gimp_rgb_get_uchar (&color, &fill[0], &fill[1], &fill[2]);
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if (gimp_drawable_has_alpha (drawable))
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fill[gimp_drawable_bytes (drawable) - 1] = OPAQUE_OPACITY;
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}
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if (offset_x >= 0 && offset_y >= 0)
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{
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dest_x = 0;
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dest_y = 0;
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}
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else if (offset_x >= 0 && offset_y < 0)
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{
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dest_x = 0;
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dest_y = gimp_drawable_height (drawable) + offset_y;
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}
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else if (offset_x < 0 && offset_y >= 0)
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{
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dest_x = gimp_drawable_width (drawable) + offset_x;
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dest_y = 0;
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}
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else if (offset_x < 0 && offset_y < 0)
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{
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dest_x = gimp_drawable_width (drawable) + offset_x;
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dest_y = gimp_drawable_height (drawable) + offset_y;
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}
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/* intersecting region */
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if (offset_x != 0 && offset_y != 0)
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{
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pixel_region_init (&destPR, new_tiles, dest_x, dest_y,
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ABS (offset_x), ABS (offset_y), TRUE);
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color_region (&destPR, fill);
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}
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/* X offset */
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if (offset_x != 0)
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{
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if (offset_y >= 0)
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pixel_region_init (&destPR, new_tiles,
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dest_x, dest_y + offset_y,
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ABS (offset_x),
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gimp_drawable_height (drawable) - ABS (offset_y),
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TRUE);
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else if (offset_y < 0)
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pixel_region_init (&destPR, new_tiles,
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dest_x, 0,
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ABS (offset_x),
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gimp_drawable_height (drawable) - ABS (offset_y),
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TRUE);
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color_region (&destPR, fill);
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}
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/* X offset */
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if (offset_y != 0)
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{
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if (offset_x >= 0)
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pixel_region_init (&destPR, new_tiles,
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dest_x + offset_x,
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dest_y,
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gimp_drawable_width (drawable) - ABS (offset_x),
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ABS (offset_y),
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TRUE);
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else if (offset_x < 0)
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pixel_region_init (&destPR, new_tiles,
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0, dest_y,
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gimp_drawable_width (drawable) - ABS (offset_x),
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ABS (offset_y),
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TRUE);
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color_region (&destPR, fill);
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}
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}
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/* push an undo */
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drawable_apply_image (drawable,
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0, 0,
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gimp_drawable_width (drawable),
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gimp_drawable_height (drawable),
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gimp_drawable_data (drawable),
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FALSE);
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/* swap the tiles */
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drawable->tiles = new_tiles;
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/* update the drawable */
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drawable_update (drawable,
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0, 0,
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gimp_drawable_width (drawable),
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gimp_drawable_height (drawable));
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}
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