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/* 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 <https://www.gnu.org/licenses/>.
*/
#ifndef __GIMP_LAYER_H__
#define __GIMP_LAYER_H__
#include "gimpdrawable.h"
#define GIMP_TYPE_LAYER (gimp_layer_get_type ())
#define GIMP_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_LAYER, GimpLayer))
#define GIMP_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_LAYER, GimpLayerClass))
#define GIMP_IS_LAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_LAYER))
#define GIMP_IS_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_LAYER))
#define GIMP_LAYER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LAYER, GimpLayerClass))
typedef struct _GimpLayerClass GimpLayerClass;
struct _GimpLayer
{
GimpDrawable parent_instance;
gdouble opacity; /* layer opacity */
GimpLayerMode mode; /* layer combination mode */
GimpLayerColorSpace blend_space; /* layer blend space */
GimpLayerColorSpace composite_space; /* layer composite space */
GimpLayerCompositeMode composite_mode; /* layer composite mode */
GimpLayerMode effective_mode; /* layer effective combination mode */
GimpLayerColorSpace effective_blend_space; /* layer effective blend space */
GimpLayerColorSpace effective_composite_space; /* layer effective composite space */
GimpLayerCompositeMode effective_composite_mode; /* layer effective composite mode */
gboolean excludes_backdrop; /* layer clips backdrop */
gboolean lock_alpha; /* lock the alpha channel */
GimpLayerMask *mask; /* possible layer mask */
gboolean apply_mask; /* controls mask application */
gboolean edit_mask; /* edit mask or layer? */
gboolean show_mask; /* show mask or layer? */
GSList *move_stack; /* ancestors affected by move */
GeglNode *layer_offset_node;
GeglNode *mask_offset_node;
/* Floating selections */
struct
{
GimpDrawable *drawable; /* floating sel is attached to */
gboolean boundary_known; /* is the current boundary valid */
GimpBoundSeg *segs; /* boundary of floating sel */
gint num_segs; /* number of segs in boundary */
} fs;
};
struct _GimpLayerClass
{
GimpDrawableClass parent_class;
/* signals */
void (* opacity_changed) (GimpLayer *layer);
void (* mode_changed) (GimpLayer *layer);
void (* blend_space_changed) (GimpLayer *layer);
void (* composite_space_changed) (GimpLayer *layer);
void (* composite_mode_changed) (GimpLayer *layer);
void (* effective_mode_changed) (GimpLayer *layer);
void (* excludes_backdrop_changed) (GimpLayer *layer);
void (* lock_alpha_changed) (GimpLayer *layer);
void (* mask_changed) (GimpLayer *layer);
void (* apply_mask_changed) (GimpLayer *layer);
void (* edit_mask_changed) (GimpLayer *layer);
void (* show_mask_changed) (GimpLayer *layer);
/* virtual functions */
gboolean (* is_alpha_locked) (GimpLayer *layer,
GimpLayer **locked_layer);
void (* translate) (GimpLayer *layer,
gint offset_x,
gint offset_y);
void (* scale) (GimpLayer *layer,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interpolation_type,
GimpProgress *progress);
void (* resize) (GimpLayer *layer,
GimpContext *context,
GimpFillType fill_type,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y);
void (* flip) (GimpLayer *layer,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result);
void (* rotate) (GimpLayer *layer,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result);
void (* transform) (GimpLayer *layer,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
GimpTransformResize clip_result,
GimpProgress *progress);
void (* convert_type) (GimpLayer *layer,
GimpImage *dest_image,
const Babl *new_format,
GimpColorProfile *src_profile,
GimpColorProfile *dest_profile,
GeglDitherMethod layer_dither_type,
GeglDitherMethod mask_dither_type,
gboolean push_undo,
GimpProgress *progress);
GeglRectangle (* get_bounding_box) (GimpLayer *layer);
void (* get_effective_mode) (GimpLayer *layer,
GimpLayerMode *mode,
GimpLayerColorSpace *blend_space,
GimpLayerColorSpace *composite_space,
GimpLayerCompositeMode *composite_mode);
gboolean (* get_excludes_backdrop) (GimpLayer *layer);
};
/* function declarations */
GType gimp_layer_get_type (void) G_GNUC_CONST;
void gimp_layer_fix_format_space (GimpLayer *layer,
gboolean copy_buffer,
gboolean push_undo);
GimpLayer * gimp_layer_get_parent (GimpLayer *layer);
GimpLayerMask * gimp_layer_get_mask (GimpLayer *layer);
GimpLayerMask * gimp_layer_create_mask (GimpLayer *layer,
GimpAddMaskType mask_type,
GimpChannel *channel);
GimpLayerMask * gimp_layer_add_mask (GimpLayer *layer,
GimpLayerMask *mask,
gboolean push_undo,
GError **error);
void gimp_layer_apply_mask (GimpLayer *layer,
GimpMaskApplyMode mode,
gboolean push_undo);
void gimp_layer_set_apply_mask (GimpLayer *layer,
gboolean apply,
gboolean push_undo);
gboolean gimp_layer_get_apply_mask (GimpLayer *layer);
void gimp_layer_set_edit_mask (GimpLayer *layer,
gboolean edit);
gboolean gimp_layer_get_edit_mask (GimpLayer *layer);
void gimp_layer_set_show_mask (GimpLayer *layer,
gboolean show,
gboolean push_undo);
gboolean gimp_layer_get_show_mask (GimpLayer *layer);
void gimp_layer_add_alpha (GimpLayer *layer);
void gimp_layer_remove_alpha (GimpLayer *layer,
GimpContext *context);
void gimp_layer_resize_to_image (GimpLayer *layer,
GimpContext *context,
GimpFillType fill_type);
GimpDrawable * gimp_layer_get_floating_sel_drawable (GimpLayer *layer);
void gimp_layer_set_floating_sel_drawable (GimpLayer *layer,
GimpDrawable *drawable);
gboolean gimp_layer_is_floating_sel (GimpLayer *layer);
void gimp_layer_set_opacity (GimpLayer *layer,
gdouble opacity,
gboolean push_undo);
gdouble gimp_layer_get_opacity (GimpLayer *layer);
void gimp_layer_set_mode (GimpLayer *layer,
GimpLayerMode mode,
gboolean push_undo);
GimpLayerMode gimp_layer_get_mode (GimpLayer *layer);
void gimp_layer_set_blend_space (GimpLayer *layer,
GimpLayerColorSpace blend_space,
gboolean push_undo);
GimpLayerColorSpace
gimp_layer_get_blend_space (GimpLayer *layer);
GimpLayerColorSpace
gimp_layer_get_real_blend_space (GimpLayer *layer);
void gimp_layer_set_composite_space (GimpLayer *layer,
GimpLayerColorSpace composite_space,
gboolean push_undo);
GimpLayerColorSpace
gimp_layer_get_composite_space (GimpLayer *layer);
GimpLayerColorSpace
gimp_layer_get_real_composite_space (GimpLayer *layer);
void gimp_layer_set_composite_mode (GimpLayer *layer,
GimpLayerCompositeMode composite_mode,
gboolean push_undo);
GimpLayerCompositeMode
gimp_layer_get_composite_mode (GimpLayer *layer);
GimpLayerCompositeMode
gimp_layer_get_real_composite_mode (GimpLayer *layer);
void gimp_layer_get_effective_mode (GimpLayer *layer,
GimpLayerMode *mode,
GimpLayerColorSpace *blend_space,
GimpLayerColorSpace *composite_space,
GimpLayerCompositeMode *composite_mode);
gboolean gimp_layer_get_excludes_backdrop (GimpLayer *layer);
void gimp_layer_set_lock_alpha (GimpLayer *layer,
gboolean lock_alpha,
gboolean push_undo);
gboolean gimp_layer_get_lock_alpha (GimpLayer *layer);
gboolean gimp_layer_can_lock_alpha (GimpLayer *layer);
gboolean gimp_layer_is_alpha_locked (GimpLayer *layer,
GimpLayer **locked_layer);
/* protected */
void gimp_layer_update_effective_mode (GimpLayer *layer);
void gimp_layer_update_excludes_backdrop (GimpLayer *layer);
#endif /* __GIMP_LAYER_H__ */
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