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