mirror of https://github.com/GNOME/gimp.git
269 lines
9.1 KiB
C
269 lines
9.1 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
|
#include <gegl.h>
|
|
|
|
#include "libgimpmath/gimpmath.h"
|
|
|
|
#include "core-types.h"
|
|
|
|
#include "gegl/gimp-babl.h"
|
|
|
|
#include "gimperror.h"
|
|
#include "gimpimage.h"
|
|
#include "gimpimage-undo-push.h"
|
|
#include "gimplayer.h"
|
|
#include "gimplayermask.h"
|
|
|
|
#include "gimp-intl.h"
|
|
|
|
|
|
static gboolean gimp_layer_mask_is_attached (const GimpItem *item);
|
|
static gboolean gimp_layer_mask_is_content_locked (const GimpItem *item);
|
|
static gboolean gimp_layer_mask_is_position_locked (const GimpItem *item);
|
|
static GimpItemTree * gimp_layer_mask_get_tree (GimpItem *item);
|
|
static GimpItem * gimp_layer_mask_duplicate (GimpItem *item,
|
|
GType new_type);
|
|
static gboolean gimp_layer_mask_rename (GimpItem *item,
|
|
const gchar *new_name,
|
|
const gchar *undo_desc,
|
|
GError **error);
|
|
|
|
static void gimp_layer_mask_convert_type (GimpDrawable *drawable,
|
|
GimpImage *dest_image,
|
|
const Babl *new_format,
|
|
GimpImageBaseType new_base_type,
|
|
GimpPrecision new_precision,
|
|
gint layer_dither_type,
|
|
gint mask_dither_type,
|
|
gboolean push_undo);
|
|
|
|
|
|
G_DEFINE_TYPE (GimpLayerMask, gimp_layer_mask, GIMP_TYPE_CHANNEL)
|
|
|
|
#define parent_class gimp_layer_mask_parent_class
|
|
|
|
|
|
static void
|
|
gimp_layer_mask_class_init (GimpLayerMaskClass *klass)
|
|
{
|
|
GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
|
|
GimpItemClass *item_class = GIMP_ITEM_CLASS (klass);
|
|
GimpDrawableClass *drawable_class = GIMP_DRAWABLE_CLASS (klass);
|
|
|
|
viewable_class->default_stock_id = "gimp-layer-mask";
|
|
|
|
item_class->is_attached = gimp_layer_mask_is_attached;
|
|
item_class->is_content_locked = gimp_layer_mask_is_content_locked;
|
|
item_class->is_position_locked = gimp_layer_mask_is_position_locked;
|
|
item_class->get_tree = gimp_layer_mask_get_tree;
|
|
item_class->duplicate = gimp_layer_mask_duplicate;
|
|
item_class->rename = gimp_layer_mask_rename;
|
|
item_class->translate_desc = C_("undo-type", "Move Layer Mask");
|
|
item_class->to_selection_desc = C_("undo-type", "Layer Mask to Selection");
|
|
|
|
drawable_class->convert_type = gimp_layer_mask_convert_type;
|
|
}
|
|
|
|
static void
|
|
gimp_layer_mask_init (GimpLayerMask *layer_mask)
|
|
{
|
|
layer_mask->layer = NULL;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_layer_mask_is_content_locked (const GimpItem *item)
|
|
{
|
|
GimpLayerMask *mask = GIMP_LAYER_MASK (item);
|
|
GimpLayer *layer = gimp_layer_mask_get_layer (mask);
|
|
|
|
if (layer)
|
|
return gimp_item_is_content_locked (GIMP_ITEM (layer));
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_layer_mask_is_position_locked (const GimpItem *item)
|
|
{
|
|
GimpLayerMask *mask = GIMP_LAYER_MASK (item);
|
|
GimpLayer *layer = gimp_layer_mask_get_layer (mask);
|
|
|
|
if (layer)
|
|
return gimp_item_is_position_locked (GIMP_ITEM (layer));
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_layer_mask_is_attached (const GimpItem *item)
|
|
{
|
|
GimpLayerMask *mask = GIMP_LAYER_MASK (item);
|
|
GimpLayer *layer = gimp_layer_mask_get_layer (mask);
|
|
|
|
return (GIMP_IS_IMAGE (gimp_item_get_image (item)) &&
|
|
GIMP_IS_LAYER (layer) &&
|
|
gimp_layer_get_mask (layer) == mask &&
|
|
gimp_item_is_attached (GIMP_ITEM (layer)));
|
|
}
|
|
|
|
static GimpItemTree *
|
|
gimp_layer_mask_get_tree (GimpItem *item)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static GimpItem *
|
|
gimp_layer_mask_duplicate (GimpItem *item,
|
|
GType new_type)
|
|
{
|
|
GimpItem *new_item;
|
|
|
|
g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_DRAWABLE), NULL);
|
|
|
|
new_item = GIMP_ITEM_CLASS (parent_class)->duplicate (item, new_type);
|
|
|
|
return new_item;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_layer_mask_rename (GimpItem *item,
|
|
const gchar *new_name,
|
|
const gchar *undo_desc,
|
|
GError **error)
|
|
{
|
|
/* reject renaming, layer masks are always named "<layer name> mask" */
|
|
|
|
g_set_error (error, GIMP_ERROR, GIMP_FAILED,
|
|
_("Cannot rename layer masks."));
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gimp_layer_mask_convert_type (GimpDrawable *drawable,
|
|
GimpImage *dest_image,
|
|
const Babl *new_format,
|
|
GimpImageBaseType new_base_type,
|
|
GimpPrecision new_precision,
|
|
gint layer_dither_type,
|
|
gint mask_dither_type,
|
|
gboolean push_undo)
|
|
{
|
|
new_format = gimp_babl_mask_format (new_precision);
|
|
|
|
GIMP_DRAWABLE_CLASS (parent_class)->convert_type (drawable, dest_image,
|
|
new_format,
|
|
new_base_type,
|
|
new_precision,
|
|
layer_dither_type,
|
|
mask_dither_type,
|
|
push_undo);
|
|
}
|
|
|
|
GimpLayerMask *
|
|
gimp_layer_mask_new (GimpImage *image,
|
|
gint width,
|
|
gint height,
|
|
const gchar *name,
|
|
const GimpRGB *color)
|
|
{
|
|
GimpLayerMask *layer_mask;
|
|
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
|
|
g_return_val_if_fail (width > 0, NULL);
|
|
g_return_val_if_fail (height > 0, NULL);
|
|
g_return_val_if_fail (color != NULL, NULL);
|
|
|
|
layer_mask =
|
|
GIMP_LAYER_MASK (gimp_drawable_new (GIMP_TYPE_LAYER_MASK,
|
|
image, name,
|
|
0, 0, width, height,
|
|
gimp_image_get_mask_format (image)));
|
|
|
|
/* set the layer_mask color and opacity */
|
|
gimp_channel_set_color (GIMP_CHANNEL (layer_mask), color, FALSE);
|
|
gimp_channel_set_show_masked (GIMP_CHANNEL (layer_mask), TRUE);
|
|
|
|
/* selection mask variables */
|
|
GIMP_CHANNEL (layer_mask)->x2 = width;
|
|
GIMP_CHANNEL (layer_mask)->y2 = height;
|
|
|
|
return layer_mask;
|
|
}
|
|
|
|
GimpLayerMask *
|
|
gimp_layer_mask_new_from_buffer (GeglBuffer *buffer,
|
|
GimpImage *image,
|
|
const gchar *name,
|
|
const GimpRGB *color)
|
|
{
|
|
GimpLayerMask *layer_mask;
|
|
GeglBuffer *dest;
|
|
|
|
g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
|
|
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
|
|
|
|
layer_mask = gimp_layer_mask_new (image,
|
|
gegl_buffer_get_width (buffer),
|
|
gegl_buffer_get_height (buffer),
|
|
name, color);
|
|
|
|
dest = gimp_drawable_get_buffer (GIMP_DRAWABLE (layer_mask));
|
|
gegl_buffer_copy (buffer, NULL, dest, NULL);
|
|
|
|
return layer_mask;
|
|
}
|
|
|
|
void
|
|
gimp_layer_mask_set_layer (GimpLayerMask *layer_mask,
|
|
GimpLayer *layer)
|
|
{
|
|
g_return_if_fail (GIMP_IS_LAYER_MASK (layer_mask));
|
|
g_return_if_fail (layer == NULL || GIMP_IS_LAYER (layer));
|
|
|
|
layer_mask->layer = layer;
|
|
|
|
if (layer)
|
|
{
|
|
gchar *mask_name;
|
|
gint offset_x;
|
|
gint offset_y;
|
|
|
|
gimp_item_get_offset (GIMP_ITEM (layer), &offset_x, &offset_y);
|
|
gimp_item_set_offset (GIMP_ITEM (layer_mask), offset_x, offset_y);
|
|
|
|
mask_name = g_strdup_printf (_("%s mask"), gimp_object_get_name (layer));
|
|
|
|
gimp_object_take_name (GIMP_OBJECT (layer_mask), mask_name);
|
|
}
|
|
}
|
|
|
|
GimpLayer *
|
|
gimp_layer_mask_get_layer (const GimpLayerMask *layer_mask)
|
|
{
|
|
g_return_val_if_fail (GIMP_IS_LAYER_MASK (layer_mask), NULL);
|
|
|
|
return layer_mask->layer;
|
|
}
|