// $Id: moldpers.h 751 2006-03-31 15:43:49Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are 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. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // Header for the perspective mould shapes implementation #ifndef INC_PERSPECTIVE #define INC_PERSPECTIVE #include "moldshap.h" #include "nodemold.h" #include "gmould.h" #define PER_NUMCOORDS 4 #define PER_UNDEFINED ((INT32)(0x80000000)) typedef enum PerspectiveClick { PClick_DoNothing, PClick_EditVPoint0, PClick_EditVPoint1 }; /******************************************************************************************* > class GPerspective : Public GMould Author: Gavin_Theobald (Xara Group Ltd) & Mike Created: 12/02/94 Purpose: The perspective function class. ********************************************************************************************/ class GPerspective : public GMould { CC_DECLARE_MEMDUMP(GPerspective) public: GPerspective(); virtual BOOL Redefine( POINT *P ) ; virtual void CopyShape( POINT *P ) ; virtual BOOL FitPath(CONST POINT *IPoints, CONST BYTE *ITypes, DWORD ILength, LPPOINT OPoints, LPBYTE OTypes, DWORD OLength, BOOL Close = FALSE); BOOL Valid() ; BOOL WhichVanishingPoint(POINT v, BOOL& b) ; void VanishingPoints( POINT& a, POINT& b ) ; INT32 GetVPointState(); void DragVanishingPoints( POINT& NewI, BOOL Flag, LPPOINT P ) ; private: virtual void ScaleView(); virtual void CalcViewBBox(); virtual void CalcViewConsts(); virtual void Transform( DPOINT a, DPOINT& b ) ; void Intersect( DPOINT I, DPOINT P0, DPOINT P1, DPOINT P2, POINT& O ) ; private: POINT P0, P1, P2, P3 ; DPOINT V0, V1, V2, V3 ; BOOL I0flag, I1flag ; BOOL I0pos, I1pos ; DPOINT I0, I1 ; DPOINT A, B ; } ; /******************************************************************************************* > class MouldPerspective: public MouldGeometry Author: Mike_Kenny (Xara Group Ltd) Created: 3/12/94 Purpose: The perspective mould class. This mould implements a rectangular transform with true perspective. ********************************************************************************************/ class MouldPerspective: public MouldGeometry { friend class RecordPerspectiveAction; CC_DECLARE_DYNAMIC(MouldPerspective); public: MouldPerspective(); ~MouldPerspective(); // funcs to initialise a perspective virtual BOOL Validate(Path* const pPath, UINT32& errorID); virtual BOOL Define(Path* const pPath, DocRect* const pRect); virtual MouldSpace Describe() {return MOULDSPACE_PERSPECTIVE;} // functions to create a moulded object virtual BOOL MouldPathToPath(Path* pSourcePath, Path* PDestinPath); virtual BOOL MouldBitmapToTile(KernelBitmap* pSourceBlit, KernelBitmap* pDestinBlit); virtual BOOL MouldPoint(DocCoord p, DocCoord& q); // functions to render an object through the mould virtual void MouldPathRender(Path* pPath, RenderRegion* pRegion); virtual void MouldBitmapRender(KernelBitmap* pBlit, DocCoord* pParallel, RenderRegion* pRegion); virtual void RenderControlBlobs(RenderRegion* pRegion); virtual void RenderDragBlobs(Spread* pSpread); virtual void DisableControlBlobs(); virtual void EnableControlBlobs(); virtual void ToggleControlBlobs(Spread* pSpread); virtual DocRect GetBlobBoundingRect(); virtual DocRect GetSourceRect(); virtual UINT32 GetByteSize() const { return sizeof(MouldPerspective); }; virtual BOOL OnClick(DocCoord, ClickType, ClickModifiers, Spread*, NodeMould*); virtual BOOL OnMouseMove(DocCoord Coord, Spread* pSpread, ClickModifiers Mods, INT32* ctype, INT32* msgres); virtual void Transform(Path* const pPath, DocRect* const pRect, TransformBase& Trans ); virtual MouldGeometry* MakeCopy(); virtual ChangeCode RecordContext(UndoableOperation*); virtual ChangeCode RecordBlobs(UndoableOperation* pOp, Spread* pSpread); public: // none virtual functions local to this class. void GetVanishingPoints(DocCoord& p0, DocCoord& p1); void MoveVanishingPoints(DocCoord p0, DocCoord p1); void CopyShape(DocCoord* pCoords); BOOL MoveVanishingPoint(DocCoord OldPoint, DocCoord& NewPoint); DocRect CalcBlobClipRect(const DocCoord& p0); static BOOL WillBeValid(POINT* P); protected: BOOL CopyContents(MouldPerspective*); RECT BuildRectangle(DocRect* const pOrigBBox); private: void RenderGrid(Spread* pSpread); void RenderGrid(RenderRegion* pRegion); void RenderGridPoints(RenderRegion* pRegion); void RenderVanishingPoints(Spread* pSpread); void RenderVanishingPoints(RenderRegion* pRegion); void RenderVanishingPoint(Spread* pSpread, const DocCoord& dcPos); BOOL BuildShape(POINT* pPoints, DocRect* const pOrigBBox); void ShowVPoints(); PerspectiveClick DetermineClickEffect(DocCoord PointerPos,Spread* pSpread); private: INT32 GridState; GPerspective Perspective; }; /******************************************************************************************** > class PerspectiveShapes Author: Mike_Kenny (Xara Group Ltd) Created: 11/12/94 Purpose: The default perspective shapes class. This class provides a bunch of static functions to create some default shapes. All shapes are defined on a (0,0),(72000,72000) coordinate system. ********************************************************************************************/ class PerspectiveShapes { public: static BOOL Rectangular(Path* pPath); static BOOL LeftWall(Path* pPath); static BOOL RightWall(Path* pPath); static BOOL Floor(Path* pPath); static BOOL Ceiling(Path* pPath); private: static BOOL MakeShape(Path* pPath, DocCoord* point); }; /******************************************************************************************** class RecordPerspectiveAction : public Action Author: Mike_Kenny (Xara Group Ltd) Created: 16/01/95 Purpose: This class records undo/redo information for the Perspective shape object. ********************************************************************************************/ class RecordPerspectiveAction : public Action { CC_DECLARE_DYNCREATE(RecordPerspectiveAction) public: RecordPerspectiveAction(); ~RecordPerspectiveAction(); virtual ActionCode Execute(); static ActionCode Init( Operation* pOp, ActionList* pActionList, MouldPerspective* pPerspective, Action** NewAction); private: MouldPerspective* pCPerspective; POINT RecordArray[PER_NUMCOORDS]; }; #endif