// $Id: doccoord.h 1285 2006-06-09 11:10:27Z 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============================ */ /* * */ /********************************************************************************************* > class DocCoord Author: Mario_Shamtani (Xara Group Ltd) Created: 10/5/1993 Base Class: Coord Purpose: Structure holding a 32-bit cartesian coordinate. Its main use is to hold the physical coordinates of objects in document space. Errors: None. *********************************************************************************************/ #ifndef INC_DOCCOORD #define INC_DOCCOORD #include "coord.h" #if !defined(EXCLUDE_FROM_XARLIB) #include "wrkcoord.h" #endif #include "matrix.h" // Declare various classes to prevent bogus stuff... class Chapter; class CCAPI WorkCoord; class CCAPI OSCoord; class Matrix; class XMatrix; class Spread; class Document; class View; class UserCoord; class CCAPI DocCoord : public Coord { public: DocCoord( INT32 x, INT32 y ) : Coord(x,y) {}; DocCoord() : Coord() {}; #if !defined(EXCLUDE_FROM_XARLIB) // Build the matrix which transforms DocCoords into OilCoords... friend Matrix ComposeDocToOilMat( const DocCoord& ChapterPos, // Top left coord of chapter const XLONG& ChapterDepth, // Accumulated height of previous chaps const FIXED16& ViewScale, // User viewing scale const WorkCoord& ScrollOffset ); // Scroll offsets // Build the matrix which transforms DocCoords into WorkCoords... friend XMatrix ComposeDocToWorkXMat( const DocCoord ChapterPos, // Top left coord of chapter const XLONG ChapterDepth, // Accumulated height of previous chaps const FIXED16 ViewScale); // User viewing scale // Convert between coords WorkCoord ToWork( Document *pDocument, View *pView); WorkCoord ToWork( Spread *pSpread, View *pView); DocCoord ToDoc(Spread* pSpread, View* pView); // ie from SpreadCoords to DocCoords DocCoord ToSpread(Spread* pSpread, View* pView); // ie from DocCoords to SpreadCoords UserCoord ToUser(Spread* pSpread); // ie from SpreadCoords to UserCoords OilCoord ToOil(Spread* pSpread, View* pView); // ie from SpreadCoords to OilCoords // Convert a DocCoord into a Logical coord (ie in millipoints, but 64 bits high) // The result will be returned in a WorkCoord (normally used for coords measured // in pixels) WorkCoord ToLogical(Spread* pSpread, View *pView); // Given a DocCoords, find the chapter its in and return other details... Chapter* FindEnclosingChapter(Document *pDocument, DocCoord* ChapterPos, XLONG* ChapterDepth, View *pView); // Functions dealing with pixel size taking scaling into account... // (See View class for actual scaled pixel size values/access functions) BOOL Pixelise(); BOOL Pixelise(View* pView); BOOL IsPixelised(View* pView); #endif // Some operator functions friend DocCoord operator + (const DocCoord& , const DocCoord& ); friend DocCoord operator - (const DocCoord& , const DocCoord& ); // Graeme (29-3-00) - Added the += and -= operators. const DocCoord& operator += ( const DocCoord &Other ); const DocCoord& operator -= ( const DocCoord &Other ); //A scaling function void Scale(const DocCoord dcOrigin, const double dDPI=96.0); // Karim 13/06/2000 // Imagining a vector from the origin, return our angle clockwise from the vertical. // The angle returned is in radians, for ease-of-use with trig fns, // and is zero at the origin. // To convert to degrees, use (result * 180.0 / PI) :o) double AngleFromVertical() const { return atan2( (double)x, (double)y ); } // Jolly useful functions for working out coordinate positions static BOOL IsJoinAcute(const DocCoord* pJoin, const DocCoord* pOtherEndOfJoin, const DocCoord* pOtherPoint); static DocCoord PositionPointFromRatio(const DocCoord& StartPoint, const DocCoord& EndPoint, const double Ratio); static double DistanceFromLine(const DocCoord& Line1, const DocCoord& Line2, const DocCoord& Point); static DocCoord OneThird(const DocCoord& Start, const DocCoord& End); static DocCoord OneHalf(const DocCoord& Start, const DocCoord& End); static DocCoord TwoThirds(const DocCoord& Start, const DocCoord& End); }; #endif