mirror of https://github.com/GNOME/gimp.git
316 lines
8.0 KiB
C
316 lines
8.0 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 <stdlib.h>
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#include <string.h>
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#include <glib-object.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 "paint-funcs/paint-funcs.h"
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#include "gimplayermask.h"
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#include "undo.h"
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#include "libgimp/gimpintl.h"
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enum
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{
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APPLY_CHANGED,
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EDIT_CHANGED,
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SHOW_CHANGED,
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LAST_SIGNAL
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};
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static void gimp_layer_mask_class_init (GimpLayerMaskClass *klass);
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static void gimp_layer_mask_init (GimpLayerMask *layermask);
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static guint layer_mask_signals[LAST_SIGNAL] = { 0 };
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static GimpChannelClass *parent_class = NULL;
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GType
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gimp_layer_mask_get_type (void)
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{
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static GType layer_mask_type = 0;
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if (! layer_mask_type)
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{
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static const GTypeInfo layer_mask_info =
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{
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sizeof (GimpLayerMaskClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gimp_layer_mask_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpLayerMask),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_layer_mask_init,
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};
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layer_mask_type = g_type_register_static (GIMP_TYPE_CHANNEL,
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"GimpLayerMask",
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&layer_mask_info, 0);
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}
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return layer_mask_type;
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}
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static void
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gimp_layer_mask_class_init (GimpLayerMaskClass *klass)
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{
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parent_class = g_type_class_peek_parent (klass);
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layer_mask_signals[APPLY_CHANGED] =
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g_signal_new ("apply_changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpLayerMaskClass, apply_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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layer_mask_signals[EDIT_CHANGED] =
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g_signal_new ("edit_changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpLayerMaskClass, edit_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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layer_mask_signals[SHOW_CHANGED] =
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g_signal_new ("show_changed",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpLayerMaskClass, show_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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}
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static void
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gimp_layer_mask_init (GimpLayerMask *layer_mask)
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{
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layer_mask->layer = NULL;
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layer_mask->apply_mask = TRUE;
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layer_mask->edit_mask = TRUE;
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layer_mask->show_mask = FALSE;
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}
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GimpLayerMask *
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gimp_layer_mask_new (GimpImage *gimage,
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gint width,
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gint height,
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const gchar *name,
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const GimpRGB *color)
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{
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GimpLayerMask *layer_mask;
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layer_mask = g_object_new (GIMP_TYPE_LAYER_MASK, NULL);
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gimp_drawable_configure (GIMP_DRAWABLE (layer_mask),
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gimage, width, height, GRAY_GIMAGE, name);
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/* set the layer_mask color and opacity */
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GIMP_CHANNEL (layer_mask)->color = *color;
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GIMP_CHANNEL (layer_mask)->show_masked = TRUE;
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/* selection mask variables */
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GIMP_CHANNEL (layer_mask)->empty = TRUE;
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GIMP_CHANNEL (layer_mask)->segs_in = NULL;
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GIMP_CHANNEL (layer_mask)->segs_out = NULL;
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GIMP_CHANNEL (layer_mask)->num_segs_in = 0;
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GIMP_CHANNEL (layer_mask)->num_segs_out = 0;
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GIMP_CHANNEL (layer_mask)->bounds_known = TRUE;
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GIMP_CHANNEL (layer_mask)->boundary_known = TRUE;
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GIMP_CHANNEL (layer_mask)->x1 = 0;
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GIMP_CHANNEL (layer_mask)->y1 = 0;
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GIMP_CHANNEL (layer_mask)->x2 = width;
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GIMP_CHANNEL (layer_mask)->y2 = height;
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return layer_mask;
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}
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GimpLayerMask *
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gimp_layer_mask_copy (GimpLayerMask *layer_mask)
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{
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gchar *layer_mask_name;
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GimpLayerMask *new_layer_mask;
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PixelRegion srcPR, destPR;
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/* formulate the new layer_mask name */
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layer_mask_name =
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g_strdup_printf (_("%s copy"),
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gimp_object_get_name (GIMP_OBJECT (layer_mask)));
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/* allocate a new layer_mask object */
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new_layer_mask = gimp_layer_mask_new (GIMP_DRAWABLE (layer_mask)->gimage,
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GIMP_DRAWABLE (layer_mask)->width,
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GIMP_DRAWABLE (layer_mask)->height,
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layer_mask_name,
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&GIMP_CHANNEL (layer_mask)->color);
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GIMP_DRAWABLE (new_layer_mask)->visible = GIMP_DRAWABLE (layer_mask)->visible;
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GIMP_DRAWABLE (new_layer_mask)->offset_x = GIMP_DRAWABLE (layer_mask)->offset_x;
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GIMP_DRAWABLE (new_layer_mask)->offset_y = GIMP_DRAWABLE (layer_mask)->offset_y;
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GIMP_CHANNEL (new_layer_mask)->show_masked = GIMP_CHANNEL (layer_mask)->show_masked;
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new_layer_mask->apply_mask = layer_mask->apply_mask;
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new_layer_mask->edit_mask = layer_mask->edit_mask;
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new_layer_mask->show_mask = layer_mask->show_mask;
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/* copy the contents across layer masks */
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pixel_region_init (&srcPR, GIMP_DRAWABLE (layer_mask)->tiles,
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0, 0,
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GIMP_DRAWABLE (layer_mask)->width,
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GIMP_DRAWABLE (layer_mask)->height,
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FALSE);
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pixel_region_init (&destPR, GIMP_DRAWABLE (new_layer_mask)->tiles,
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0, 0,
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GIMP_DRAWABLE (layer_mask)->width,
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GIMP_DRAWABLE (layer_mask)->height,
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TRUE);
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copy_region (&srcPR, &destPR);
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/* free up the layer_mask_name memory */
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g_free (layer_mask_name);
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return new_layer_mask;
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}
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void
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gimp_layer_mask_set_layer (GimpLayerMask *mask,
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GimpLayer *layer)
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{
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mask->layer = layer;
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}
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GimpLayer *
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gimp_layer_mask_get_layer (GimpLayerMask *mask)
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{
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return mask->layer;
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}
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void
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gimp_layer_mask_set_apply (GimpLayerMask *layer_mask,
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gboolean apply)
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{
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g_return_if_fail (GIMP_IS_LAYER_MASK (layer_mask));
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if (layer_mask->apply_mask != apply)
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{
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layer_mask->apply_mask = apply;
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if (layer_mask->layer)
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{
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GimpDrawable *drawable;
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drawable = GIMP_DRAWABLE (layer_mask->layer);
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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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g_signal_emit (G_OBJECT (layer_mask),
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layer_mask_signals[APPLY_CHANGED], 0);
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}
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}
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gboolean
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gimp_layer_mask_get_apply (GimpLayerMask *layer_mask)
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{
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g_return_val_if_fail (GIMP_IS_LAYER_MASK (layer_mask), FALSE);
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return layer_mask->apply_mask;
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}
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void
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gimp_layer_mask_set_edit (GimpLayerMask *layer_mask,
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gboolean edit)
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{
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g_return_if_fail (GIMP_IS_LAYER_MASK (layer_mask));
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if (layer_mask->edit_mask != edit)
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{
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layer_mask->edit_mask = edit;
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g_signal_emit (G_OBJECT (layer_mask),
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layer_mask_signals[EDIT_CHANGED], 0);
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}
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}
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gboolean
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gimp_layer_mask_get_edit (GimpLayerMask *layer_mask)
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{
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g_return_val_if_fail (GIMP_IS_LAYER_MASK (layer_mask), FALSE);
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return layer_mask->edit_mask;
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}
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void
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gimp_layer_mask_set_show (GimpLayerMask *layer_mask,
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gboolean show)
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{
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g_return_if_fail (GIMP_IS_LAYER_MASK (layer_mask));
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if (layer_mask->show_mask != show)
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{
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layer_mask->show_mask = show;
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if (layer_mask->layer)
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{
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GimpDrawable *drawable;
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drawable = GIMP_DRAWABLE (layer_mask->layer);
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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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g_signal_emit (G_OBJECT (layer_mask),
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layer_mask_signals[SHOW_CHANGED], 0);
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}
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}
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gboolean
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gimp_layer_mask_get_show (GimpLayerMask *layer_mask)
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{
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g_return_val_if_fail (GIMP_IS_LAYER_MASK (layer_mask), FALSE);
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return layer_mask->show_mask;
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}
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