mirror of https://github.com/GNOME/gimp.git
254 lines
15 KiB
C
254 lines
15 KiB
C
/* GIMP - The GNU 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 3 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, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_LAYER_H__
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#define __GIMP_LAYER_H__
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#include "gimpdrawable.h"
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#define GIMP_TYPE_LAYER (gimp_layer_get_type ())
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#define GIMP_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_LAYER, GimpLayer))
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#define GIMP_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_LAYER, GimpLayerClass))
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#define GIMP_IS_LAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_LAYER))
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#define GIMP_IS_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_LAYER))
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#define GIMP_LAYER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_LAYER, GimpLayerClass))
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typedef struct _GimpLayerClass GimpLayerClass;
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struct _GimpLayer
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{
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GimpDrawable parent_instance;
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gdouble opacity; /* layer opacity */
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GimpLayerMode mode; /* layer combination mode */
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GimpLayerColorSpace blend_space; /* layer blend space */
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GimpLayerColorSpace composite_space; /* layer composite space */
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GimpLayerCompositeMode composite_mode; /* layer composite mode */
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GimpLayerMode effective_mode; /* layer effective combination mode */
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GimpLayerColorSpace effective_blend_space; /* layer effective blend space */
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GimpLayerColorSpace effective_composite_space; /* layer effective composite space */
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GimpLayerCompositeMode effective_composite_mode; /* layer effective composite mode */
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gboolean excludes_backdrop; /* layer clips backdrop */
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gboolean lock_alpha; /* lock the alpha channel */
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GimpLayerMask *mask; /* possible layer mask */
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gboolean apply_mask; /* controls mask application */
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gboolean edit_mask; /* edit mask or layer? */
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gboolean show_mask; /* show mask or layer? */
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GSList *move_stack; /* ancestors affected by move */
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GeglNode *layer_offset_node;
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GeglNode *mask_offset_node;
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/* Floating selections */
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struct
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{
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GimpDrawable *drawable; /* floating sel is attached to */
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gboolean boundary_known; /* is the current boundary valid */
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GimpBoundSeg *segs; /* boundary of floating sel */
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gint num_segs; /* number of segs in boundary */
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} fs;
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};
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struct _GimpLayerClass
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{
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GimpDrawableClass parent_class;
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/* signals */
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void (* opacity_changed) (GimpLayer *layer);
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void (* mode_changed) (GimpLayer *layer);
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void (* blend_space_changed) (GimpLayer *layer);
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void (* composite_space_changed) (GimpLayer *layer);
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void (* composite_mode_changed) (GimpLayer *layer);
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void (* effective_mode_changed) (GimpLayer *layer);
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void (* excludes_backdrop_changed) (GimpLayer *layer);
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void (* lock_alpha_changed) (GimpLayer *layer);
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void (* mask_changed) (GimpLayer *layer);
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void (* apply_mask_changed) (GimpLayer *layer);
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void (* edit_mask_changed) (GimpLayer *layer);
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void (* show_mask_changed) (GimpLayer *layer);
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/* virtual functions */
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gboolean (* is_alpha_locked) (GimpLayer *layer,
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GimpLayer **locked_layer);
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void (* translate) (GimpLayer *layer,
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gint offset_x,
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gint offset_y);
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void (* scale) (GimpLayer *layer,
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gint new_width,
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gint new_height,
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gint new_offset_x,
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gint new_offset_y,
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GimpInterpolationType interpolation_type,
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GimpProgress *progress);
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void (* resize) (GimpLayer *layer,
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GimpContext *context,
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GimpFillType fill_type,
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gint new_width,
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gint new_height,
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gint offset_x,
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gint offset_y);
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void (* flip) (GimpLayer *layer,
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GimpContext *context,
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GimpOrientationType flip_type,
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gdouble axis,
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gboolean clip_result);
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void (* rotate) (GimpLayer *layer,
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GimpContext *context,
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GimpRotationType rotate_type,
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gdouble center_x,
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gdouble center_y,
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gboolean clip_result);
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void (* transform) (GimpLayer *layer,
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GimpContext *context,
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const GimpMatrix3 *matrix,
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GimpTransformDirection direction,
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GimpInterpolationType interpolation_type,
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GimpTransformResize clip_result,
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GimpProgress *progress);
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void (* convert_type) (GimpLayer *layer,
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GimpImage *dest_image,
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const Babl *new_format,
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GimpColorProfile *src_profile,
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GimpColorProfile *dest_profile,
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GeglDitherMethod layer_dither_type,
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GeglDitherMethod mask_dither_type,
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gboolean push_undo,
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GimpProgress *progress);
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GeglRectangle (* get_bounding_box) (GimpLayer *layer);
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void (* get_effective_mode) (GimpLayer *layer,
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GimpLayerMode *mode,
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GimpLayerColorSpace *blend_space,
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GimpLayerColorSpace *composite_space,
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GimpLayerCompositeMode *composite_mode);
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gboolean (* get_excludes_backdrop) (GimpLayer *layer);
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};
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/* function declarations */
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GType gimp_layer_get_type (void) G_GNUC_CONST;
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void gimp_layer_fix_format_space (GimpLayer *layer,
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gboolean copy_buffer,
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gboolean push_undo);
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GimpLayer * gimp_layer_get_parent (GimpLayer *layer);
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GimpLayerMask * gimp_layer_get_mask (GimpLayer *layer);
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GimpLayerMask * gimp_layer_create_mask (GimpLayer *layer,
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GimpAddMaskType mask_type,
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GimpChannel *channel);
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GimpLayerMask * gimp_layer_add_mask (GimpLayer *layer,
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GimpLayerMask *mask,
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gboolean push_undo,
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GError **error);
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void gimp_layer_apply_mask (GimpLayer *layer,
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GimpMaskApplyMode mode,
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gboolean push_undo);
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void gimp_layer_set_apply_mask (GimpLayer *layer,
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gboolean apply,
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gboolean push_undo);
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gboolean gimp_layer_get_apply_mask (GimpLayer *layer);
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void gimp_layer_set_edit_mask (GimpLayer *layer,
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gboolean edit);
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gboolean gimp_layer_get_edit_mask (GimpLayer *layer);
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void gimp_layer_set_show_mask (GimpLayer *layer,
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gboolean show,
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gboolean push_undo);
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gboolean gimp_layer_get_show_mask (GimpLayer *layer);
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void gimp_layer_add_alpha (GimpLayer *layer);
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void gimp_layer_remove_alpha (GimpLayer *layer,
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GimpContext *context);
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void gimp_layer_resize_to_image (GimpLayer *layer,
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GimpContext *context,
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GimpFillType fill_type);
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GimpDrawable * gimp_layer_get_floating_sel_drawable (GimpLayer *layer);
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void gimp_layer_set_floating_sel_drawable (GimpLayer *layer,
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GimpDrawable *drawable);
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gboolean gimp_layer_is_floating_sel (GimpLayer *layer);
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void gimp_layer_set_opacity (GimpLayer *layer,
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gdouble opacity,
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gboolean push_undo);
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gdouble gimp_layer_get_opacity (GimpLayer *layer);
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void gimp_layer_set_mode (GimpLayer *layer,
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GimpLayerMode mode,
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gboolean push_undo);
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GimpLayerMode gimp_layer_get_mode (GimpLayer *layer);
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void gimp_layer_set_blend_space (GimpLayer *layer,
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GimpLayerColorSpace blend_space,
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gboolean push_undo);
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GimpLayerColorSpace
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gimp_layer_get_blend_space (GimpLayer *layer);
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GimpLayerColorSpace
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gimp_layer_get_real_blend_space (GimpLayer *layer);
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void gimp_layer_set_composite_space (GimpLayer *layer,
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GimpLayerColorSpace composite_space,
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gboolean push_undo);
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GimpLayerColorSpace
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gimp_layer_get_composite_space (GimpLayer *layer);
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GimpLayerColorSpace
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gimp_layer_get_real_composite_space (GimpLayer *layer);
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void gimp_layer_set_composite_mode (GimpLayer *layer,
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GimpLayerCompositeMode composite_mode,
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gboolean push_undo);
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GimpLayerCompositeMode
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gimp_layer_get_composite_mode (GimpLayer *layer);
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GimpLayerCompositeMode
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gimp_layer_get_real_composite_mode (GimpLayer *layer);
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void gimp_layer_get_effective_mode (GimpLayer *layer,
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GimpLayerMode *mode,
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GimpLayerColorSpace *blend_space,
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GimpLayerColorSpace *composite_space,
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GimpLayerCompositeMode *composite_mode);
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gboolean gimp_layer_get_excludes_backdrop (GimpLayer *layer);
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void gimp_layer_set_lock_alpha (GimpLayer *layer,
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gboolean lock_alpha,
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gboolean push_undo);
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gboolean gimp_layer_get_lock_alpha (GimpLayer *layer);
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gboolean gimp_layer_can_lock_alpha (GimpLayer *layer);
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gboolean gimp_layer_is_alpha_locked (GimpLayer *layer,
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GimpLayer **locked_layer);
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/* protected */
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void gimp_layer_update_effective_mode (GimpLayer *layer);
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void gimp_layer_update_excludes_backdrop (GimpLayer *layer);
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#endif /* __GIMP_LAYER_H__ */
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