224 lines
12 KiB
C
224 lines
12 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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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 __PIKA_CHANNEL_H__
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#define __PIKA_CHANNEL_H__
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#include "pikadrawable.h"
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#define PIKA_TYPE_CHANNEL (pika_channel_get_type ())
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#define PIKA_CHANNEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_CHANNEL, PikaChannel))
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#define PIKA_CHANNEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_CHANNEL, PikaChannelClass))
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#define PIKA_IS_CHANNEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_CHANNEL))
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#define PIKA_IS_CHANNEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_CHANNEL))
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#define PIKA_CHANNEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_CHANNEL, PikaChannelClass))
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typedef struct _PikaChannelClass PikaChannelClass;
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struct _PikaChannel
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{
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PikaDrawable parent_instance;
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PikaRGB color; /* Also stores the opacity */
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gboolean show_masked; /* Show masked areas--as */
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/* opposed to selected areas */
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GeglNode *color_node;
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GeglNode *invert_node;
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GeglNode *mask_node;
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/* Selection mask variables */
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gboolean boundary_known; /* is the current boundary valid */
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PikaBoundSeg *segs_in; /* outline of selected region */
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PikaBoundSeg *segs_out; /* outline of selected region */
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gint num_segs_in; /* number of lines in boundary */
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gint num_segs_out; /* number of lines in boundary */
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gboolean empty; /* is the region empty? */
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gboolean bounds_known; /* recalculate the bounds? */
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gint x1, y1; /* coordinates for bounding box */
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gint x2, y2; /* lower right hand coordinate */
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};
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struct _PikaChannelClass
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{
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PikaDrawableClass parent_class;
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/* signals */
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void (* color_changed) (PikaChannel *channel);
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/* virtual functions */
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gboolean (* boundary) (PikaChannel *channel,
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const PikaBoundSeg **segs_in,
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const PikaBoundSeg **segs_out,
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gint *num_segs_in,
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gint *num_segs_out,
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gint x1,
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gint y1,
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gint x2,
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gint y2);
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gboolean (* is_empty) (PikaChannel *channel);
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gboolean (* is_full) (PikaChannel *channel);
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void (* feather) (PikaChannel *channel,
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gdouble radius_x,
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gdouble radius_y,
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gboolean edge_lock,
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gboolean push_undo);
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void (* sharpen) (PikaChannel *channel,
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gboolean push_undo);
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void (* clear) (PikaChannel *channel,
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const gchar *undo_desc,
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gboolean push_undo);
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void (* all) (PikaChannel *channel,
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gboolean push_undo);
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void (* invert) (PikaChannel *channel,
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gboolean push_undo);
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void (* border) (PikaChannel *channel,
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gint radius_x,
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gint radius_y,
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PikaChannelBorderStyle style,
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gboolean edge_lock,
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gboolean push_undo);
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void (* grow) (PikaChannel *channel,
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gint radius_x,
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gint radius_y,
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gboolean push_undo);
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void (* shrink) (PikaChannel *channel,
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gint radius_x,
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gint radius_y,
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gboolean edge_lock,
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gboolean push_undo);
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void (* flood) (PikaChannel *channel,
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gboolean push_undo);
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const gchar *feather_desc;
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const gchar *sharpen_desc;
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const gchar *clear_desc;
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const gchar *all_desc;
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const gchar *invert_desc;
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const gchar *border_desc;
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const gchar *grow_desc;
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const gchar *shrink_desc;
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const gchar *flood_desc;
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};
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/* function declarations */
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GType pika_channel_get_type (void) G_GNUC_CONST;
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PikaChannel * pika_channel_new (PikaImage *image,
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gint width,
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gint height,
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const gchar *name,
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const PikaRGB *color);
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PikaChannel * pika_channel_new_from_buffer (PikaImage *image,
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GeglBuffer *buffer,
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const gchar *name,
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const PikaRGB *color);
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PikaChannel * pika_channel_new_from_alpha (PikaImage *image,
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PikaDrawable *drawable,
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const gchar *name,
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const PikaRGB *color);
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PikaChannel * pika_channel_new_from_component (PikaImage *image,
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PikaChannelType type,
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const gchar *name,
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const PikaRGB *color);
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PikaChannel * pika_channel_get_parent (PikaChannel *channel);
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gdouble pika_channel_get_opacity (PikaChannel *channel);
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void pika_channel_set_opacity (PikaChannel *channel,
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gdouble opacity,
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gboolean push_undo);
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void pika_channel_get_color (PikaChannel *channel,
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PikaRGB *color);
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void pika_channel_set_color (PikaChannel *channel,
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const PikaRGB *color,
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gboolean push_undo);
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gboolean pika_channel_get_show_masked (PikaChannel *channel);
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void pika_channel_set_show_masked (PikaChannel *channel,
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gboolean show_masked);
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void pika_channel_push_undo (PikaChannel *mask,
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const gchar *undo_desc);
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/* selection mask functions */
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PikaChannel * pika_channel_new_mask (PikaImage *image,
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gint width,
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gint height);
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gboolean pika_channel_boundary (PikaChannel *mask,
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const PikaBoundSeg **segs_in,
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const PikaBoundSeg **segs_out,
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gint *num_segs_in,
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gint *num_segs_out,
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gint x1,
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gint y1,
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gint x2,
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gint y2);
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gboolean pika_channel_is_empty (PikaChannel *mask);
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gboolean pika_channel_is_full (PikaChannel *mask);
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void pika_channel_feather (PikaChannel *mask,
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gdouble radius_x,
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gdouble radius_y,
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gboolean edge_lock,
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gboolean push_undo);
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void pika_channel_sharpen (PikaChannel *mask,
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gboolean push_undo);
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void pika_channel_clear (PikaChannel *mask,
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const gchar *undo_desc,
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gboolean push_undo);
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void pika_channel_all (PikaChannel *mask,
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gboolean push_undo);
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void pika_channel_invert (PikaChannel *mask,
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gboolean push_undo);
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void pika_channel_border (PikaChannel *mask,
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gint radius_x,
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gint radius_y,
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PikaChannelBorderStyle style,
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gboolean edge_lock,
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gboolean push_undo);
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void pika_channel_grow (PikaChannel *mask,
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gint radius_x,
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gint radius_y,
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gboolean push_undo);
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void pika_channel_shrink (PikaChannel *mask,
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gint radius_x,
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gint radius_y,
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gboolean edge_lock,
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gboolean push_undo);
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void pika_channel_flood (PikaChannel *mask,
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gboolean push_undo);
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#endif /* __PIKA_CHANNEL_H__ */
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