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- /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
- *
- * This 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 2 of the License, or
- * (at your option) any later version.
- *
- * This software 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 software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- // Cross-platform Region class based on the X11 region implementation
-
- #ifndef __RFB_REGION_INCLUDED__
- #define __RFB_REGION_INCLUDED__
-
- #include <rfb/Rect.h>
- #include <vector>
-
- struct _XRegion;
-
- namespace rfb {
-
- struct ShortRect {
- short x1, y1, x2, y2;
- };
-
- class Region {
- public:
- // Create an empty region
- Region();
- // Create a rectangular region
- Region(const Rect& r);
-
- Region(const Region& r);
- Region &operator=(const Region& src);
-
- ~Region();
-
- // the following methods alter the region in place:
-
- void clear();
- void reset(const Rect& r);
- void translate(const rfb::Point& delta);
- void setOrderedRects(const std::vector<Rect>& rects);
- void setExtentsAndOrderedRects(const ShortRect* extents, int nRects,
- const ShortRect* rects);
-
- void assign_intersect(const Region& r);
- void assign_union(const Region& r);
- void assign_subtract(const Region& r);
-
- // the following three operations return a new region:
-
- Region intersect(const Region& r) const;
- Region union_(const Region& r) const;
- Region subtract(const Region& r) const;
-
- bool equals(const Region& b) const;
- int numRects() const;
- bool is_empty() const { return numRects() == 0; }
-
- bool get_rects(std::vector<Rect>* rects, bool left2right=true,
- bool topdown=true, int maxArea=0) const;
- Rect get_bounding_rect() const;
-
- void debug_print(const char *prefix) const;
-
- protected:
-
- struct _XRegion* xrgn;
- };
-
- };
-
- #endif // __RFB_REGION_INCLUDED__
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