/*

 * GUI Common internal definitions

 *

 * Copyright (c) 2009 CodeSourcery

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#define X1_Y1

typedef struct

{

    int x0;

    int y0;

#if defined X1_Y1

    int x1;

    int y1;

#else

    int width;

    int height;

#endif

} gui_area_t;

#if defined X1_Y1

#   define GET_GUI_AREA_WIDTH(area_ptr)    ((area_ptr)->x1 - (area_ptr)->x0)

#   define GET_GUI_AREA_HEIGHT(area_ptr)   ((area_ptr)->y1 - (area_ptr)->y0)

#   define GET_GUI_AREA_X1(area_ptr)       (area_ptr)->x1)

#   define GET_GUI_AREA_Y1(area_ptr)       (area_ptr)->y1)

#   define SET_GUI_AREA_WIDTH(area_ptr,w)  (area_ptr)->x1 = (area_ptr)->x0 + (w)

#   define SET_GUI_AREA_HEIGHT(area_ptr,h) (area_ptr)->y1 = (area_ptr)->y0 + (h)

#   define SET_GUI_AREA_X0(area_ptr,x0)    (area_ptr)->x0 = (x0)

#   define SET_GUI_AREA_Y0(area_ptr,y0)    (area_ptr)->y0 = (y0)

#   define SET_GUI_AREA_X1(area_ptr,x1)    (area_ptr)->x1 = (x1)

#   define SET_GUI_AREA_Y1(area_ptr,y1)    (area_ptr)->y1 = (y1)

#elif defined WIDTH_HEIGHT

#   define GET_GUI_AREA_WIDTH(area_ptr)    (area_ptr)->width

#   define GET_GUI_AREA_HEIGHT(area_ptr)   (area_ptr)->height

#   define GET_GUI_AREA_X1(area_ptr)       ((area_ptr)->x0 + (area_ptr)->width)

#   define GET_GUI_AREA_Y1(area_ptr)       ((area_ptr)->y0 + (area_ptr)->height)

#   define SET_GUI_AREA_WIDTH(area_ptr,w)  (area_ptr)->width = (w)

#   define SET_GUI_AREA_HEIGHT(area_ptr,h) (area_ptr)->height = (h)

#   define SET_GUI_AREA_X0(area_ptr,x0)    { (area_ptr)->width += (area_ptr)->x0 - (x0); (area_ptr)->x0 = (x0); }

#   define SET_GUI_AREA_Y0(area_ptr,y0)    { (area_ptr)->height += (area_ptr)->y0 - (y0); (area_ptr)->y0 = (y0); }

#   define SET_GUI_AREA_X1(area_ptr,x1)    (area_ptr)->width = (x1) - (area_ptr)->x0

#   define SET_GUI_AREA_Y1(area_ptr,y1)    (area_ptr)->height = (y1) - (area_ptr)->y0

#else

#   error BAD DEFINITIONS IN GUI_COMMON.H

#endif