// $Id: brpress.cpp 1282 2006-06-09 09:46:49Z 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============================ */ // brush pressure classes implementation #include "camtypes.h" #include "brpress.h" //#include "cxfrec.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "pen.h" #include "ndbldpth.h" CC_IMPLEMENT_MEMDUMP(PressureItem, CCObject); /******************************************************************************************** > PressureItem::PressureItem(UINT32 Pressure, double Proportion, MILLIPOINT Distance) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/1/97 Inputs: Pressure - the pressure value Proportion - the proportional distance along the path Distance - the absolute distance along the path Purpose: constructor with initialisation Notes: ********************************************************************************************/ PressureItem::PressureItem(UINT32 Pressure, double Proportion, MILLIPOINT Distance) { m_Pressure = Pressure; m_Proportion = Proportion; m_Distance = Distance; } /******************************************************************************************** > PressureItem::PressureItem(PressureItem& Other) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/1/97 Inputs: Other Purpose: copy constructor Notes: ********************************************************************************************/ PressureItem::PressureItem(const PressureItem& Other) { m_Pressure = Other.m_Pressure; m_Proportion = Other.m_Proportion; m_Distance = Other.m_Distance; } /******************************************************************************************** > PressureItem::PressureItem(PressureItem& Other) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 7/1/97 Inputs: Other Purpose: copy constructor Notes: ********************************************************************************************/ PressureItem PressureItem::operator =(const PressureItem& Other) { m_Pressure = Other.m_Pressure; m_Proportion = Other.m_Proportion; m_Distance = Other.m_Distance; return *this; } /******************************************************************************************** > PressureItem::WorkOutProportion(MILLIPOINT PathLength) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: length of the path that this object is on Purpose: calculates how far along the path we are and sets the member variable ********************************************************************************************/ void PressureItem::WorkOutProportion(MILLIPOINT PathLength) { if (m_Distance < 0 || m_Distance > PathLength) { ERROR3("Attempting to calculate proportional distance with invalid data"); TRACEUSER( "Diccon", _T("Invalid distance: %d, Path Length: %d\n"), m_Distance, PathLength ); m_Proportion = 1.0; return; } m_Proportion = (double)((double)m_Distance / (double)PathLength); //if (m_Proportion < 0) // TRACEUSER( "Diccon", _T("Proportion: %f\n"), m_Proportion); } /******************************************************************************************** > BOOL PressureItem::WriteNative(BaseCamelotFilter *pFilter) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: pFilter - filter to write to Returns: TRUE if the Node has written out a record to the filter Purpose: Writes out a record of this PressureItem to the record supplied. Note that because PressureItems are generally part of a larger object they do not have their own tag etc. This function is merely a convenience function. SeeAlso: AttrBrushType::WritePreChildrenNative; BrushAttrRecordHandler::HandleRecord ********************************************************************************************/ BOOL PressureItem::WriteNative(CXaraFileRecord* pRecord) { ERROR2IF(pRecord == NULL, FALSE, "Record is NULL in PressureItem::WriteNative"); BOOL ok = pRecord->WriteINT32((INT32)m_Pressure); if (ok) ok = pRecord->WriteDOUBLE(m_Proportion); if (ok) ok = pRecord->WriteINT32(m_Distance); return ok; } /******************************************************************************************** > BrushPointInfo::BrushPointInfo() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: Default Constuctor for BrushPointInfo ********************************************************************************************/ BrushPointInfo::BrushPointInfo() { m_Pressure = MAXPRESSURE / 2; m_Tangent = 0.0; m_Point = DocCoord(0, 0); } /******************************************************************************************** > BrushPointInfo::BrushPointInfo(DocCoord Point, double Tangent, UINT32 Pressure) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: initialising Constuctor for BrushPointInfo ********************************************************************************************/ BrushPointInfo::BrushPointInfo(DocCoord Point, double Tangent, UINT32 Pressure) { m_Point = Point; m_Tangent = Tangent; m_Pressure = Pressure; } /******************************************************************************************** > BrushPointInfo BrushPointInfo::operator=(BrushPointInfo &Other) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: initialising Constuctor for BrushPointInfo ********************************************************************************************/ BrushPointInfo& BrushPointInfo::operator =(BrushPointInfo &Other) { m_Point = Other.m_Point; m_Tangent = Other.m_Tangent; m_Pressure = Other.m_Pressure; return *(this); } /******************************************************************************************** > TimeStampBrushPoint::TimeStampBrushPoint() Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: Default Constuctor for TimeStampBrushPoint ********************************************************************************************/ TimeStampBrushPoint::TimeStampBrushPoint() : BrushPointInfo() { m_Distance = -1; m_Proportion = -1; } /******************************************************************************************** > TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: Constuctor for TimeStampBrushPoint ********************************************************************************************/ TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo PathInfo) { m_Point = PathInfo.m_Point; m_Tangent = PathInfo.m_Tangent; m_Distance = -1; m_Proportion = -1; } /******************************************************************************************** > TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: Constuctor for TimeStampBrushPoint ********************************************************************************************/ TimeStampBrushPoint::TimeStampBrushPoint(CPathPointInfo PathInfo, MILLIPOINT Distance) { m_Point = PathInfo.m_Point; m_Tangent = PathInfo.m_Tangent; m_Distance = Distance; m_Proportion = -1; } /******************************************************************************************** > TimeStampBrushPoint::TimeStampBrushPoint(DocCoord Point, double Tangent, MILLIPOINT Distance) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: - Purpose: Constuctor for TimeStampBrushPoint ********************************************************************************************/ TimeStampBrushPoint::TimeStampBrushPoint(DocCoord Point, double Tangent, MILLIPOINT Distance) { m_Point = Point; m_Tangent = Tangent; m_Distance = Distance; } /******************************************************************************************** > TimeStampBrushPoint TimeStampBrushPoint::operator=(TimeStampBrushPoint Other) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: Other - the TSBP to assign Purpose: assignment operator ********************************************************************************************/ TimeStampBrushPoint TimeStampBrushPoint::operator=(TimeStampBrushPoint Other) { m_Point = Other.m_Point; m_Tangent = Other.m_Tangent; m_Distance = Other.m_Distance; m_Proportion = Other.m_Proportion; return *this; } /******************************************************************************************** > TimeStampBrushPoint::WorkOutProportion(MILLIPOINT PathLength) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: length of the path that this object is on Purpose: calculates how far along the path we are and sets the member variable ********************************************************************************************/ void TimeStampBrushPoint::WorkOutProportion(MILLIPOINT PathLength) { if (m_Distance < 0 || m_Distance > PathLength) { // ERROR3("Attempting to calculate proportional distance with invalid data"); TRACEUSER( "Diccon", _T("Invalid distance: %d, Path Length: %d\n"), m_Distance, PathLength ); m_Proportion = 1.0; return; } m_Proportion = (double)((double)m_Distance / (double)PathLength); //if (m_Proportion < 0) // TRACEUSER( "Diccon", _T("Proportion: %f\n"), m_Proportion); } /******************************************************************************************** > static INT32 TimeStampBrushPoint::ComparePointInfo(void* Point1, void* Point2) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 6/10/99 Inputs: Point1, Point2- the distances to be compared Returns: -1, if Dist1 < Dist2 0 , if Dist1 == Dist2 1, if Dist1 > Dist2 Purpose: Compares the two points by their distances, note that they are specified as void* so that I can supply this fn.to qsort SeeAlso: - ********************************************************************************************/ INT32 TimeStampBrushPoint::ComparePointInfo(const void* Point1, const void* Point2) { TimeStampBrushPoint* pPoint1 = (TimeStampBrushPoint*)Point1; TimeStampBrushPoint* pPoint2 = (TimeStampBrushPoint*)Point2; if (pPoint1->m_Distance < pPoint2->m_Distance) return -1; if (pPoint1->m_Distance > pPoint2->m_Distance) return 1; return 0; } /******************************************************************************************** > BOOL TimeStampBrushPoint::WriteNative(BaseCamelotFilter *pFilter) Author: Diccon_Yamanaka (Xara Group Ltd) Created: 13/12/99 Inputs: pFilter - filter to write to Returns: TRUE if the Node has written out a record to the filter Purpose: Writes out a record of this TSBP to the record supplied. Note that because TSBPs are generally part of a larger object they do not have their own tag etc. This function is merely a convenience function. SeeAlso: AttrBrushType::WritePreChildrenNative; BrushAttrRecordHandler::HandleRecord ********************************************************************************************/ BOOL TimeStampBrushPoint::WriteNative(CXaraFileRecord* pRecord) { ERROR2IF(pRecord == NULL, FALSE, "Record is NULL in TimeStampBrushPoint::WriteNative"); BOOL ok = pRecord->WriteCoord(m_Point); TRACEUSER( "Diccon", _T("Wrote Point %d, %d\n"), m_Point.x, m_Point.y ); if (ok) ok = pRecord->WriteDOUBLE(m_Tangent); if (ok) ok = pRecord->WriteDOUBLE(m_Proportion); if (ok) ok = pRecord->WriteINT32(m_Distance); return ok; }