// $Id: genv.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 envelope mould shapes implementation #ifndef INC_GENVELOPE #define INC_GENVELOPE #include "moldshap.h" /******************************************************************************************** > class GEnvelope Author: Gavin_Theobald (Xara Group Ltd) Created: 21/2/94 Purpose: The low level enveloper class. ********************************************************************************************/ /* void Define( POINT *P, RECT *pBBox, DWORD pTolerance = 0 ) ; Define the envelope with twelve control points P. The source path has bounding box pBBox. pTolerance defines the accuracy with which curves are moulded. If pTolerance is zero then curves are never split. void Redefine( POINT *P ) ; Redefines the mould after dragging the control points P. void FitPoint( POINT a, POINT& b ) ; This will mould the point a returning the result in b. Note that a may be outside the original bounding box. void FitPoint( DPOINT a, POINT& b ) ; This will mould the point a specified as two values in the range 0 to 1. The result is returned in b. This call can be used for drawing grid points. BOOL FitPath ( CONST POINT *IPoints, CONST BYTE *ITypes, DWORD ILength, LPPOINT OPoints, LPBYTE OTypes, INT32 OLength, BOOL Close = FALSE ) ; This will mould a source path IPoints,ITypes,ILength returning the result in the destination path OPoints,OTypes,OLength. Curves may be split into several curves for greater accuracy if pTolerance was non-zero. If Close is non-zero then open paths are closed. */ class GEnvelope : public GMould { CC_DECLARE_DYNAMIC(GEnvelope) public: GEnvelope(); virtual BOOL Redefine( POINT *P ) ; virtual BOOL FitPath ( CONST POINT *IPoints, CONST BYTE *ITypes, DWORD ILength, LPPOINT OPoints, LPBYTE OTypes, DWORD OLength, BOOL Close = FALSE ) ; virtual void CopyShape( POINT *P ) ; private: virtual void ScaleView(); virtual void CalcViewBBox(); virtual void CalcViewConsts(); virtual void Transform( DPOINT a, DPOINT& b ) ; private: POINT L0, L1, L2 ; POINT T0, T1, T2 ; POINT R0, R1, R2 ; POINT B0, B1, B2 ; DPOINT VL0, VL1, VL2 ; DPOINT VT0, VT1, VT2 ; DPOINT VR0, VR1, VR2 ; DPOINT VB0, VB1, VB2 ; DPOINT A, B, C, D, E, F, G, H, J, K, L, M ; } ; /******************************************************************************************** > class GEnvelope2x2 Author: Gavin_Theobald (Xara Group Ltd) Created: 21/2/94 Purpose: The low level enveloper class. ********************************************************************************************/ /* void Define( POINT *P, RECT *pBBox, DWORD pTolerance = 0 ) ; Define the envelope with twenty-four control points P. The source path has bounding box pBBox. pTolerance defines the accuracy with which curves are moulded. If pTolerance is zero then curves are never split. void Redefine( POINT *P ) ; Redefines the mould after dragging the control points P. void FitPoint( POINT a, POINT& b ) ; This will mould the point a returning the result in b. Note that a may be outside the original bounding box. void FitPoint( DPOINT a, POINT& b ) ; This will mould the point a specified as two values in the range 0 to 1. The result is returned in b. This call can be used for drawing grid points. BOOL FitPath ( CONST POINT *IPoints, CONST BYTE *ITypes, DWORD ILength, LPPOINT OPoints, LPBYTE OTypes, INT32 OLength, BOOL Close = FALSE ) ; This will mould a source path IPoints,ITypes,ILength returning the result in the destination path OPoints,OTypes,OLength. Curves may be split into several curves for greater accuracy if pTolerance was non-zero. If Close is non-zero then open paths are closed. */ ///////////////////////////////////////////////////////////////////////////////////////////////// class GEnvelope2x2 : public GMould { CC_DECLARE_DYNAMIC(GEnvelope2x2) public: GEnvelope2x2(); virtual BOOL Redefine( POINT *P ) ; virtual BOOL FitPath ( CONST POINT *IPoints, CONST BYTE *ITypes, DWORD ILength, LPPOINT OPoints, LPBYTE OTypes, DWORD OLength, BOOL Close = FALSE ) ; virtual void CopyShape( POINT *P ) ; private: virtual void ScaleView() ; virtual void CalcViewBBox() ; virtual void CalcViewConsts() ; virtual void Transform( DPOINT a, DPOINT& b ) ; BOOL CalcConsts() ; BOOL GenLine( DPOINT P0, DPOINT P6, DPOINT T0, DPOINT T6 ) ; private: POINT L0, L1, L2, L3, L4, L5 ; POINT T0, T1, T2, T3, T4, T5 ; POINT R0, R1, R2, R3, R4, R5 ; POINT B0, B1, B2, B3, B4, B5 ; POINT H1, H2, H4, H5 ; POINT V1, V2, V4, V5 ; POINT MM ; DPOINT VL0, VL1, VL2, VL3, VL4, VL5 ; DPOINT VT0, VT1, VT2, VT3, VT4, VT5 ; DPOINT VR0, VR1, VR2, VR3, VR4, VR5 ; DPOINT VB0, VB1, VB2, VB3, VB4, VB5 ; DPOINT VH1, VH2, VH4, VH5 ; DPOINT VV1, VV2, VV4, VV5 ; DPOINT VMM ; BOOL SmoothX, SmoothY ; DPOINT A00, B00, C00, D00, E00, F00, G00, H00, J00, K00, L00, M00 ; DPOINT A01, B01, C01, D01, E01, F01, G01, H01, J01, K01, L01, M01 ; DPOINT A10, B10, C10, D10, E10, F10, G10, H10, J10, K10, L10, M10 ; DPOINT A11, B11, C11, D11, E11, F11, G11, H11, J11, K11, L11, M11 ; } ; #endif