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74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Clipping rectangle defines
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*/
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#ifndef TINSEL_CLIPRECT_H // prevent multiple includes
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#define TINSEL_CLIPRECT_H
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#include "common/list.h"
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#include "common/rect.h"
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namespace Tinsel {
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struct OBJECT;
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typedef Common::List<Common::Rect> RectList;
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/*----------------------------------------------------------------------*\
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|* Clip Rect Function Prototypes *|
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\*----------------------------------------------------------------------*/
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void ResetClipRect(); // Resets the clipping rectangle allocator
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void AddClipRect( // Allocate a clipping rectangle from the free list
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const Common::Rect &pClip); // clip rectangle dimensions to allocate
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const RectList &GetClipRects();
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bool IntersectRectangle( // Creates the intersection of two rectangles
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Common::Rect &pDest, // pointer to destination rectangle that is to receive the intersection
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const Common::Rect &pSrc1, // pointer to a source rectangle
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const Common::Rect &pSrc2); // pointer to a source rectangle
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bool UnionRectangle( // Creates the union of two rectangles
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Common::Rect &pDest, // destination rectangle that is to receive the new union
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const Common::Rect &pSrc1, // a source rectangle
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const Common::Rect &pSrc2); // a source rectangle
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void FindMovingObjects( // Creates clipping rectangles for all the objects that have moved on the specified object list
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OBJECT **pObjList, // playfield display list to draw
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Common::Point *pWin, // playfield window top left position
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Common::Rect *pClip, // playfield clipping rectangle
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bool bVelocity, // when set, objects pos is updated with velocity
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bool bScrolled); // when set, playfield has scrolled
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void MergeClipRect(); // Merges any clipping rectangles that overlap
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void UpdateClipRect( // Redraws all objects within this clipping rectangle
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OBJECT **pObjList, // object list to draw
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Common::Point *pWin, // window top left position
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Common::Rect *pClip); // pointer to clip rectangle
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} // End of namespace Tinsel
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#endif // TINSEL_CLIPRECT_H
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