source: mainline/uspace/lib/guigfx/private/canvas.h@ e0545de

/*
 * Copyright (c) 2019 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup libguigfx
 * @{
 */
/**
 * @file GFX canvas backend structure
 *
 */

#ifndef _GUIGFX_PRIVATE_CANVAS_H
#define _GUIGFX_PRIVATE_CANVAS_H

#include <canvas.h>
#include <draw/surface.h>
#include <gfx/bitmap.h>
#include <gfx/context.h>
#include <gfx/coord.h>
#include <io/pixel.h>

/** Actual structure of graphics context.
 *
 * This is private to libguigfx. It is not visible to clients nor backends.
 */
struct canvas_gc {
        /** Base graphic context */
        gfx_context_t *gc;
        /** Canvas */
        canvas_t *canvas;
        /** Surface */
        surface_t *surface;
        /** Current drawing color */
        pixel_t color;
};

/** Bitmap in canvas GC */
typedef struct {
        /** Containing canvas GC */
        struct canvas_gc *cgc;
        /** Allocation info */
        gfx_bitmap_alloc_t alloc;
        /** @c true if we allocated the bitmap, @c false if allocated by caller */
        bool myalloc;
        /** Surface */
        surface_t *surface;
        /** Rectangle covered by bitmap */
        gfx_rect_t rect;
} canvas_gc_bitmap_t;

#endif

/** @}
 */