PIKApp/app/display/pikacanvasitem-utils.h

86 lines
5.1 KiB
C

/* 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
*
* pikacanvasitem-utils.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 __PIKA_CANVAS_ITEM_UTILS_H__
#define __PIKA_CANVAS_ITEM_UTILS_H__
gboolean pika_canvas_item_on_handle (PikaCanvasItem *item,
gdouble x,
gdouble y,
PikaHandleType type,
gdouble handle_x,
gdouble handle_y,
gint width,
gint height,
PikaHandleAnchor anchor);
gboolean pika_canvas_item_on_vectors_handle (PikaCanvasItem *item,
PikaVectors *vectors,
const PikaCoords *coord,
gint width,
gint height,
PikaAnchorType preferred,
gboolean exclusive,
PikaAnchor **ret_anchor,
PikaStroke **ret_stroke);
gboolean pika_canvas_item_on_vectors_curve (PikaCanvasItem *item,
PikaVectors *vectors,
const PikaCoords *coord,
gint width,
gint height,
PikaCoords *ret_coords,
gdouble *ret_pos,
PikaAnchor **ret_segment_start,
PikaAnchor **ret_segment_end,
PikaStroke **ret_stroke);
gboolean pika_canvas_item_on_vectors (PikaCanvasItem *item,
const PikaCoords *coords,
gint width,
gint height,
PikaCoords *ret_coords,
gdouble *ret_pos,
PikaAnchor **ret_segment_start,
PikaAnchor **ret_segment_end,
PikaStroke **ret_stroke,
PikaVectors **ret_vectors);
void pika_canvas_item_shift_to_north_west (PikaHandleAnchor anchor,
gdouble x,
gdouble y,
gint width,
gint height,
gdouble *shifted_x,
gdouble *shifted_y);
void pika_canvas_item_shift_to_center (PikaHandleAnchor anchor,
gdouble x,
gdouble y,
gint width,
gint height,
gdouble *shifted_x,
gdouble *shifted_y);
#endif /* __PIKA_CANVAS_ITEM_UTILS_H__ */