/* PIKA - Photo and Image Kooker Application * a rebranding of The GNU Image Manipulation Program (created with heckimp) * A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio * * Original copyright, applying to most contents (license remains unchanged): * 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 __PIKA_PAINT_CORE_H__ #define __PIKA_PAINT_CORE_H__ #include "core/pikaobject.h" #define PIKA_TYPE_PAINT_CORE (pika_paint_core_get_type ()) #define PIKA_PAINT_CORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_PAINT_CORE, PikaPaintCore)) #define PIKA_PAINT_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_PAINT_CORE, PikaPaintCoreClass)) #define PIKA_IS_PAINT_CORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_PAINT_CORE)) #define PIKA_IS_PAINT_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_PAINT_CORE)) #define PIKA_PAINT_CORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_PAINT_CORE, PikaPaintCoreClass)) typedef struct _PikaPaintCoreClass PikaPaintCoreClass; struct _PikaPaintCore { PikaObject parent_instance; gint ID; /* unique instance ID */ gchar *undo_desc; /* undo description */ gboolean show_all; /* whether working in show-all mode */ PikaCoords start_coords; /* the last stroke's endpoint for undo */ PikaCoords cur_coords; /* current coords */ PikaCoords last_coords; /* last coords */ PikaVector2 last_paint; /* last point that was painted */ gdouble distance; /* distance traveled by brush */ gdouble pixel_dist; /* distance in pixels */ gint x1, y1; /* undo extents in image coords */ gint x2, y2; /* undo extents in image coords */ gboolean use_saved_proj; /* keep the unmodified proj around */ PikaPickable *image_pickable; /* the image pickable */ GHashTable *undo_buffers; /* pixels which have been modified */ GeglBuffer *saved_proj_buffer; /* proj tiles which have been modified */ GeglBuffer *canvas_buffer; /* the buffer to paint the mask to */ GeglBuffer *paint_buffer; /* the buffer to paint pixels to */ gint paint_buffer_x; gint paint_buffer_y; GHashTable *original_bounds; /* the original bounds of drawables */ GeglBuffer *mask_buffer; /* the target drawable's mask */ GHashTable *applicators; GArray *stroke_buffer; PikaSymmetry *sym; PikaPaintLockBlinkState lock_blink_state; }; struct _PikaPaintCoreClass { PikaObjectClass parent_class; /* virtual functions */ gboolean (* start) (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, const PikaCoords *coords, GError **error); gboolean (* pre_paint) (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, PikaPaintState paint_state, guint32 time); void (* paint) (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, PikaSymmetry *sym, PikaPaintState paint_state, guint32 time); void (* post_paint) (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, PikaPaintState paint_state, guint32 time); void (* interpolate) (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, guint32 time); GeglBuffer * (* get_paint_buffer) (PikaPaintCore *core, PikaDrawable *drawable, PikaPaintOptions *paint_options, PikaLayerMode paint_mode, const PikaCoords *coords, gint *paint_buffer_x, gint *paint_buffer_y, gint *paint_width, gint *paint_height); PikaUndo * (* push_undo) (PikaPaintCore *core, PikaImage *image, const gchar *undo_desc); }; GType pika_paint_core_get_type (void) G_GNUC_CONST; void pika_paint_core_paint (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, PikaPaintState state, guint32 time); gboolean pika_paint_core_start (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, const PikaCoords *coords, GError **error); void pika_paint_core_finish (PikaPaintCore *core, GList *drawables, gboolean push_undo); void pika_paint_core_cancel (PikaPaintCore *core, GList *drawables); void pika_paint_core_cleanup (PikaPaintCore *core); void pika_paint_core_interpolate (PikaPaintCore *core, GList *drawables, PikaPaintOptions *paint_options, const PikaCoords *coords, guint32 time); void pika_paint_core_set_show_all (PikaPaintCore *core, gboolean show_all); gboolean pika_paint_core_get_show_all (PikaPaintCore *core); gboolean pika_paint_core_expand_drawable (PikaPaintCore *paint_core, PikaDrawable *drawable, PikaPaintOptions *paint_options, gint x1, gint x2, gint y1, gint y2, gint *x, gint *y); void pika_paint_core_set_current_coords (PikaPaintCore *core, const PikaCoords *coords); void pika_paint_core_get_current_coords (PikaPaintCore *core, PikaCoords *coords); void pika_paint_core_set_last_coords (PikaPaintCore *core, const PikaCoords *coords); void pika_paint_core_get_last_coords (PikaPaintCore *core, PikaCoords *coords); void pika_paint_core_round_line (PikaPaintCore *core, PikaPaintOptions *options, gboolean constrain_15_degrees, gdouble constrain_offset_angle, gdouble constrain_xres, gdouble constrain_yres); /* protected functions */ GeglBuffer * pika_paint_core_get_paint_buffer (PikaPaintCore *core, PikaDrawable *drawable, PikaPaintOptions *options, PikaLayerMode paint_mode, const PikaCoords *coords, gint *paint_buffer_x, gint *paint_buffer_y, gint *paint_width, gint *paint_height); PikaPickable * pika_paint_core_get_image_pickable (PikaPaintCore *core); GeglBuffer * pika_paint_core_get_orig_image (PikaPaintCore *core, PikaDrawable *drawable); GeglBuffer * pika_paint_core_get_orig_proj (PikaPaintCore *core); void pika_paint_core_paste (PikaPaintCore *core, const PikaTempBuf *paint_mask, gint paint_mask_offset_x, gint paint_mask_offset_y, PikaDrawable *drawable, gdouble paint_opacity, gdouble image_opacity, PikaLayerMode paint_mode, PikaPaintApplicationMode mode); void pika_paint_core_replace (PikaPaintCore *core, const PikaTempBuf *paint_mask, gint paint_mask_offset_x, gint paint_mask_offset_y, PikaDrawable *drawable, gdouble paint_opacity, gdouble image_opacity, PikaPaintApplicationMode mode); void pika_paint_core_smooth_coords (PikaPaintCore *core, PikaPaintOptions *paint_options, PikaCoords *coords); #endif /* __PIKA_PAINT_CORE_H__ */