2a96d598c3
Largely based on a patch by Ell, with the enum type renamed and various small changes. Adds another axis of configurability to the existing layer mode madness, and is WIP too.
146 lines
7.0 KiB
C
146 lines
7.0 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 <http://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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GimpLayerCompositeMode composite; /* layer composite mode */
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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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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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void (* opacity_changed) (GimpLayer *layer);
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void (* mode_changed) (GimpLayer *layer);
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void (* composite_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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};
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/* function declarations */
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GType gimp_layer_get_type (void) G_GNUC_CONST;
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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_composite (GimpLayer *layer,
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GimpLayerCompositeMode composite,
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gboolean push_undo);
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GimpLayerCompositeMode
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gimp_layer_get_composite (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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#endif /* __GIMP_LAYER_H__ */
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