133 lines
5.0 KiB
C
133 lines
5.0 KiB
C
/*
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* File : region.h
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* This file is part of RT-Thread GUI Engine
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* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-16 Bernard first version
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*/
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#ifndef __RTGUI_REGION_H__
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#define __RTGUI_REGION_H__
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#include <rtgui/rtgui.h>
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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typedef struct rtgui_region_data rtgui_region_data_t;
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struct rtgui_dc;
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struct rtgui_region_data
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{
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rt_uint32_t size;
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rt_uint32_t numRects;
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/* XXX: And why, exactly, do we have this bogus struct definition? */
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/* rtgui_rect_t rects[size]; in memory but not explicitly declared */
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};
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typedef struct rtgui_region
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{
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rtgui_rect_t extents;
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rtgui_region_data_t *data;
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} rtgui_region_t;
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typedef enum
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{
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RTGUI_REGION_STATUS_FAILURE,
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RTGUI_REGION_STATUS_SUCCESS
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} rtgui_region_status_t;
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/* creation/destruction */
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void rtgui_region_init(rtgui_region_t *region);
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void rtgui_region_init_rect(rtgui_region_t *region,
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int x, int y, unsigned int width, unsigned int height);
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void rtgui_region_init_with_extents(rtgui_region_t *region, const rtgui_rect_t *extents);
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void rtgui_region_fini(rtgui_region_t *region);
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void rtgui_region_translate(rtgui_region_t *region, int x, int y);
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rtgui_region_status_t rtgui_region_copy(rtgui_region_t *dest, rtgui_region_t *source);
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rtgui_region_status_t rtgui_region_intersect(rtgui_region_t *newReg, rtgui_region_t *reg1, rtgui_region_t *reg2);
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rtgui_region_status_t rtgui_region_intersect_rect(rtgui_region_t *newReg, rtgui_region_t *reg1, rtgui_rect_t *rect);
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rtgui_region_status_t rtgui_region_union(rtgui_region_t *newReg, rtgui_region_t *reg1, rtgui_region_t *reg2);
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rtgui_region_status_t rtgui_region_union_rect(rtgui_region_t *dest, rtgui_region_t *source, rtgui_rect_t *rect);
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rtgui_region_status_t rtgui_region_subtract(rtgui_region_t *regD, rtgui_region_t *regM, rtgui_region_t *regS);
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rtgui_region_status_t rtgui_region_subtract_rect(rtgui_region_t *regD, rtgui_region_t *regM, rtgui_rect_t *rect);
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rtgui_region_status_t rtgui_region_inverse(rtgui_region_t *newReg, rtgui_region_t *reg1, rtgui_rect_t *invRect);
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int rtgui_region_num_rects(rtgui_region_t *region);
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rtgui_rect_t *rtgui_region_rects(rtgui_region_t *region);
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#define RTGUI_REGION_OUT 0
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#define RTGUI_REGION_IN 1
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#define RTGUI_REGION_PART 2
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int rtgui_region_contains_point(rtgui_region_t *region, int x, int y, rtgui_rect_t *box);
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int rtgui_region_contains_rectangle(rtgui_region_t *rtgui_region_t, rtgui_rect_t *prect);
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int rtgui_region_not_empty(rtgui_region_t *region);
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rtgui_rect_t *rtgui_region_extents(rtgui_region_t *region);
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rtgui_region_status_t rtgui_region_append(rtgui_region_t *dest, rtgui_region_t *region);
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rtgui_region_status_t rtgui_region_validate(rtgui_region_t *badreg, int *pOverlap);
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void rtgui_region_reset(rtgui_region_t *region, rtgui_rect_t *rect);
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void rtgui_region_empty(rtgui_region_t *region);
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void rtgui_region_dump(rtgui_region_t *region);
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void rtgui_region_draw_clip(rtgui_region_t *region, struct rtgui_dc *dc);
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int rtgui_region_is_flat(rtgui_region_t *region);
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/* rect functions */
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extern rtgui_rect_t rtgui_empty_rect;
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void rtgui_rect_moveto(rtgui_rect_t *rect, int x, int y);
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void rtgui_rect_moveto_point(rtgui_rect_t *rect, int x, int y);
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void rtgui_rect_moveto_align(const rtgui_rect_t *rect, rtgui_rect_t *to, int align);
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void rtgui_rect_inflate(rtgui_rect_t *rect, int d);
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void rtgui_rect_intersect(rtgui_rect_t *src, rtgui_rect_t *dest);
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int rtgui_rect_contains_point(const rtgui_rect_t *rect, int x, int y);
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int rtgui_rect_is_intersect(const rtgui_rect_t *rect1, const rtgui_rect_t *rect2);
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int rtgui_rect_is_equal(const rtgui_rect_t *rect1, const rtgui_rect_t *rect2);
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rtgui_rect_t *rtgui_rect_set(rtgui_rect_t *rect, int x, int y, int w, int h);
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rt_bool_t rtgui_rect_is_empty(const rtgui_rect_t *rect);
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void rtgui_rect_union(rtgui_rect_t *src, rtgui_rect_t *dest);
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rt_inline void rtgui_rect_init(rtgui_rect_t* rect, int x, int y, int width, int height)
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{
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rect->x1 = x;
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rect->y1 = y;
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rect->x2 = x + width;
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rect->y2 = y + height;
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}
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#define RTGUI_RECT(rect, x, y, w, h) \
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do { \
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rect.x1 = x; rect.y1 = y; \
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rect.x2 = (x) + (w); rect.y2 = (y) + (h); \
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} while (0)
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#if defined(__cplusplus) || defined(c_plusplus)
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}
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#endif
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#endif /* _PIXMAN_H_ */
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