mirror of
https://gitlab.gnome.org/GNOME/gimp
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e2daae315b
2001-08-14 Michael Natterer <mitch@gimp.org> * app/gdisplay.h: an evil temp_hack which lets GimpContext managing the active display withoug including "gdisplay.h". Will go away as soon ad context properties are registered dynamically. * app/module_db.c: cleaned up the object code in preparation of moving it to core/. * app/path.c: connect to GimpImage's * app/core/gimpobject.[ch]: derive it from GObject, not from GtkObject any more (yeah :-) * app/core/*.c: #include <glib-object.h> instead of <gtk/gtk.h>, removed some remaining GtkObject-isms. (left in a few #include <gtk/gtk.h> where bigger changes are needed to get rid of the UI dependency). * app/core/core-types.h: #include <gdk-pixbuf/gdk-pixbuf.h> here temporarily. * app/core/gimp.c (gimp_create_display): unref the image after creating it's first display. * app/core/gimpbrush.[ch]: disabled the parts of the code which depend on GimpPaintTool. * app/core/gimpbrushgenerated.c * app/core/gimpbrushpipe.c: changed accordingly. * app/core/gimpcontext.[ch]: evil hack (see above) to manage the active display without including "gdisplay.h" * app/core/gimpimage-mask.[ch]: pass a context to gimage_mask_stroke() and get the current tool's PDB string from there. * app/core/gimpedit.c: changed accordingly. * app/core/gimpimage.c: use gimp_image_update() instead of gdisplays_update_full(). * app/gui/color-area.c * app/gui/colormap-dialog.c * app/gui/dialogs-constructors.c * app/gui/edit-commands.c * app/gui/image-commands.c * app/gui/toolbox.c: changed accordingly (don't use Gtk methods on GObjects). * app/gui/menus.c: fix some const warnings by explicit casting. * app/tools/*.[ch]: ported all tools to GObject, some minor cleanup while i was on it. * app/widgets/gimpdialogfactory.[ch]: ported to GObject. * app/widgets/gimplayerlistview.h: added FOO_GET_CLASS() macro. * tools/pdbgen/app.pl: added a "widgets_eek" hack like "tools_eek" which inserts #include "widgets/widgets-types.h" before ordinary includes. * tools/pdbgen/pdb/brush_select.pdb * tools/pdbgen/pdb/edit.pdb * app/pdb/brush_select_cmds.c * app/pdb/edit_cmds.c: changed according to the stuff above.
327 lines
8.2 KiB
C
327 lines
8.2 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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#include "config.h"
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#include <string.h>
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#include <glib-object.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 "gimp.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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Gimp *gimp;
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GimpRGB color;
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gimp = gimp_drawable_gimage (drawable)->gimp;
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gimp_context_get_background (gimp_get_current_context (gimp), &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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gimp_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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gimp_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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