/* 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 . */ #ifndef __GIMP_CHANNEL_H__ #define __GIMP_CHANNEL_H__ #include "gimpdrawable.h" #define GIMP_TYPE_CHANNEL (gimp_channel_get_type ()) #define GIMP_CHANNEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CHANNEL, GimpChannel)) #define GIMP_CHANNEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CHANNEL, GimpChannelClass)) #define GIMP_IS_CHANNEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CHANNEL)) #define GIMP_IS_CHANNEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CHANNEL)) #define GIMP_CHANNEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CHANNEL, GimpChannelClass)) typedef struct _GimpChannelClass GimpChannelClass; struct _GimpChannel { GimpDrawable parent_instance; GimpRGB color; /* Also stores the opacity */ gboolean show_masked; /* Show masked areas--as */ /* opposed to selected areas */ GeglNode *color_node; GeglNode *invert_node; GeglNode *mask_node; /* Selection mask variables */ gboolean boundary_known; /* is the current boundary valid */ BoundSeg *segs_in; /* outline of selected region */ BoundSeg *segs_out; /* outline of selected region */ gint num_segs_in; /* number of lines in boundary */ gint num_segs_out; /* number of lines in boundary */ gboolean empty; /* is the region empty? */ gboolean bounds_known; /* recalculate the bounds? */ gint x1, y1; /* coordinates for bounding box */ gint x2, y2; /* lower right hand coordinate */ }; struct _GimpChannelClass { GimpDrawableClass parent_class; /* signals */ void (* color_changed) (GimpChannel *channel); /* virtual functions */ gboolean (* boundary) (GimpChannel *channel, const BoundSeg **segs_in, const BoundSeg **segs_out, gint *num_segs_in, gint *num_segs_out, gint x1, gint y1, gint x2, gint y2); gboolean (* bounds) (GimpChannel *channel, gint *x1, gint *y1, gint *x2, gint *y2); gboolean (* is_empty) (GimpChannel *channel); void (* feather) (GimpChannel *channel, gdouble radius_x, gdouble radius_y, gboolean push_undo); void (* sharpen) (GimpChannel *channel, gboolean push_undo); void (* clear) (GimpChannel *channel, const gchar *undo_desc, gboolean push_undo); void (* all) (GimpChannel *channel, gboolean push_undo); void (* invert) (GimpChannel *channel, gboolean push_undo); void (* border) (GimpChannel *channel, gint radius_x, gint radius_y, gboolean feather, gboolean edge_lock, gboolean push_undo); void (* grow) (GimpChannel *channel, gint radius_x, gint radius_y, gboolean push_undo); void (* shrink) (GimpChannel *channel, gint radius_x, gint radius_y, gboolean edge_lock, gboolean push_undo); const gchar *feather_desc; const gchar *sharpen_desc; const gchar *clear_desc; const gchar *all_desc; const gchar *invert_desc; const gchar *border_desc; const gchar *grow_desc; const gchar *shrink_desc; }; /* function declarations */ GType gimp_channel_get_type (void) G_GNUC_CONST; GimpChannel * gimp_channel_new (GimpImage *image, gint width, gint height, const gchar *name, const GimpRGB *color); GimpChannel * gimp_channel_new_from_alpha (GimpImage *image, GimpDrawable *drawable, const gchar *name, const GimpRGB *color); GimpChannel * gimp_channel_new_from_component (GimpImage *image, GimpChannelType type, const gchar *name, const GimpRGB *color); GimpChannel * gimp_channel_get_parent (GimpChannel *channel); gdouble gimp_channel_get_opacity (const GimpChannel *channel); void gimp_channel_set_opacity (GimpChannel *channel, gdouble opacity, gboolean push_undo); void gimp_channel_get_color (const GimpChannel *channel, GimpRGB *color); void gimp_channel_set_color (GimpChannel *channel, const GimpRGB *color, gboolean push_undo); gboolean gimp_channel_get_show_masked (GimpChannel *channel); void gimp_channel_set_show_masked (GimpChannel *channel, gboolean show_masked); void gimp_channel_push_undo (GimpChannel *mask, const gchar *undo_desc); /* selection mask functions */ GimpChannel * gimp_channel_new_mask (GimpImage *image, gint width, gint height); gboolean gimp_channel_boundary (GimpChannel *mask, const BoundSeg **segs_in, const BoundSeg **segs_out, gint *num_segs_in, gint *num_segs_out, gint x1, gint y1, gint x2, gint y2); gboolean gimp_channel_bounds (GimpChannel *mask, gint *x1, gint *y1, gint *x2, gint *y2); gboolean gimp_channel_is_empty (GimpChannel *mask); void gimp_channel_feather (GimpChannel *mask, gdouble radius_x, gdouble radius_y, gboolean push_undo); void gimp_channel_sharpen (GimpChannel *mask, gboolean push_undo); void gimp_channel_clear (GimpChannel *mask, const gchar *undo_desc, gboolean push_undo); void gimp_channel_all (GimpChannel *mask, gboolean push_undo); void gimp_channel_invert (GimpChannel *mask, gboolean push_undo); void gimp_channel_border (GimpChannel *mask, gint radius_x, gint radius_y, gboolean feather, gboolean edge_lock, gboolean push_undo); void gimp_channel_grow (GimpChannel *mask, gint radius_x, gint radius_y, gboolean push_undo); void gimp_channel_shrink (GimpChannel *mask, gint radius_x, gint radius_y, gboolean edge_lock, gboolean push_undo); #endif /* __GIMP_CHANNEL_H__ */