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Diffstat (limited to '')
| -rw-r--r-- | app/display/gimpcanvasitem.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/app/display/gimpcanvasitem.h b/app/display/gimpcanvasitem.h new file mode 100644 index 0000000..2004260 --- /dev/null +++ b/app/display/gimpcanvasitem.h @@ -0,0 +1,147 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpcanvasitem.h + * Copyright (C) 2010 Michael Natterer <mitch@gimp.org> + * + * 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 <https://www.gnu.org/licenses/>. + */ + +#ifndef __GIMP_CANVAS_ITEM_H__ +#define __GIMP_CANVAS_ITEM_H__ + + +#include "core/gimpobject.h" + + +#define GIMP_TYPE_CANVAS_ITEM (gimp_canvas_item_get_type ()) +#define GIMP_CANVAS_ITEM(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CANVAS_ITEM, GimpCanvasItem)) +#define GIMP_CANVAS_ITEM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CANVAS_ITEM, GimpCanvasItemClass)) +#define GIMP_IS_CANVAS_ITEM(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CANVAS_ITEM)) +#define GIMP_IS_CANVAS_ITEM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CANVAS_ITEM)) +#define GIMP_CANVAS_ITEM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CANVAS_ITEM, GimpCanvasItemClass)) + + +typedef struct _GimpCanvasItemPrivate GimpCanvasItemPrivate; +typedef struct _GimpCanvasItemClass GimpCanvasItemClass; + +struct _GimpCanvasItem +{ + GimpObject parent_instance; + + GimpCanvasItemPrivate *private; +}; + +struct _GimpCanvasItemClass +{ + GimpObjectClass parent_class; + + /* signals */ + void (* update) (GimpCanvasItem *item, + cairo_region_t *region); + + /* virtual functions */ + void (* draw) (GimpCanvasItem *item, + cairo_t *cr); + cairo_region_t * (* get_extents) (GimpCanvasItem *item); + + void (* stroke) (GimpCanvasItem *item, + cairo_t *cr); + void (* fill) (GimpCanvasItem *item, + cairo_t *cr); + + gboolean (* hit) (GimpCanvasItem *item, + gdouble x, + gdouble y); +}; + + +GType gimp_canvas_item_get_type (void) G_GNUC_CONST; + +GimpDisplayShell * gimp_canvas_item_get_shell (GimpCanvasItem *item); +GimpImage * gimp_canvas_item_get_image (GimpCanvasItem *item); +GtkWidget * gimp_canvas_item_get_canvas (GimpCanvasItem *item); + +void gimp_canvas_item_draw (GimpCanvasItem *item, + cairo_t *cr); +cairo_region_t * gimp_canvas_item_get_extents (GimpCanvasItem *item); + +gboolean gimp_canvas_item_hit (GimpCanvasItem *item, + gdouble x, + gdouble y); + +void gimp_canvas_item_set_visible (GimpCanvasItem *item, + gboolean visible); +gboolean gimp_canvas_item_get_visible (GimpCanvasItem *item); + +void gimp_canvas_item_set_line_cap (GimpCanvasItem *item, + cairo_line_cap_t line_cap); + +void gimp_canvas_item_set_highlight (GimpCanvasItem *item, + gboolean highlight); +gboolean gimp_canvas_item_get_highlight (GimpCanvasItem *item); + +void gimp_canvas_item_begin_change (GimpCanvasItem *item); +void gimp_canvas_item_end_change (GimpCanvasItem *item); + +void gimp_canvas_item_suspend_stroking (GimpCanvasItem *item); +void gimp_canvas_item_resume_stroking (GimpCanvasItem *item); + +void gimp_canvas_item_suspend_filling (GimpCanvasItem *item); +void gimp_canvas_item_resume_filling (GimpCanvasItem *item); + +void gimp_canvas_item_transform (GimpCanvasItem *item, + cairo_t *cr); +void gimp_canvas_item_transform_xy (GimpCanvasItem *item, + gdouble x, + gdouble y, + gint *tx, + gint *ty); +void gimp_canvas_item_transform_xy_f (GimpCanvasItem *item, + gdouble x, + gdouble y, + gdouble *tx, + gdouble *ty); +gdouble gimp_canvas_item_transform_distance + (GimpCanvasItem *item, + gdouble x1, + gdouble y1, + gdouble x2, + gdouble y2); +gdouble gimp_canvas_item_transform_distance_square + (GimpCanvasItem *item, + gdouble x1, + gdouble y1, + gdouble x2, + gdouble y2); +void gimp_canvas_item_untransform_viewport + (GimpCanvasItem *item, + gint *x, + gint *y, + gint *w, + gint *h); + + +/* protected */ + +void _gimp_canvas_item_update (GimpCanvasItem *item, + cairo_region_t *region); +gboolean _gimp_canvas_item_needs_update (GimpCanvasItem *item); +void _gimp_canvas_item_stroke (GimpCanvasItem *item, + cairo_t *cr); +void _gimp_canvas_item_fill (GimpCanvasItem *item, + cairo_t *cr); + + +#endif /* __GIMP_CANVAS_ITEM_H__ */ |