539 lines
18 KiB
C++
539 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "gradtrns.hxx"
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#include <svx/svdobj.hxx>
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#include <basegfx/range/b2drange.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include <vcl/salbtype.hxx> // FRound
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//////////////////////////////////////////////////////////////////////////////
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void GradTransformer::GradToVec(GradTransGradient& rG, GradTransVector& rV, const SdrObject* pObj)
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{
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// handle start color
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rV.aCol1 = rG.aGradient.GetStartColor();
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if(100 != rG.aGradient.GetStartIntens())
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{
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const double fFact((double)rG.aGradient.GetStartIntens() / 100.0);
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rV.aCol1 = Color(rV.aCol1.getBColor() * fFact);
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}
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// handle end color
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rV.aCol2 = rG.aGradient.GetEndColor();
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if(100 != rG.aGradient.GetEndIntens())
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{
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const double fFact((double)rG.aGradient.GetEndIntens() / 100.0);
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rV.aCol2 = Color(rV.aCol2.getBColor() * fFact);
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}
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// calc the basic positions
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const Rectangle aObjectSnapRectangle(pObj->GetSnapRect());
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const basegfx::B2DRange aRange(aObjectSnapRectangle.Left(), aObjectSnapRectangle.Top(), aObjectSnapRectangle.Right(), aObjectSnapRectangle.Bottom());
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const basegfx::B2DPoint aCenter(aRange.getCenter());
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basegfx::B2DPoint aStartPos, aEndPos;
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switch(rG.aGradient.GetGradientStyle())
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{
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case XGRAD_LINEAR :
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{
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aStartPos = basegfx::B2DPoint(aCenter.getX(), aRange.getMinY());
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aEndPos = basegfx::B2DPoint(aCenter.getX(), aRange.getMaximum().getY());
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if(rG.aGradient.GetBorder())
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{
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basegfx::B2DVector aFullVec(aStartPos - aEndPos);
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const double fLen = (aFullVec.getLength() * (100.0 - (double)rG.aGradient.GetBorder())) / 100.0;
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aFullVec.normalize();
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aStartPos = aEndPos + (aFullVec * fLen);
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}
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if(rG.aGradient.GetAngle())
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{
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const double fAngle = (double)rG.aGradient.GetAngle() * (F_PI180 / 10.0);
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const basegfx::B2DHomMatrix aTransformation(basegfx::tools::createRotateAroundPoint(aCenter, -fAngle));
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aStartPos *= aTransformation;
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aEndPos *= aTransformation;
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}
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break;
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}
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case XGRAD_AXIAL :
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{
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aStartPos = aCenter;
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aEndPos = basegfx::B2DPoint(aCenter.getX(), aRange.getMaximum().getY());
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if(rG.aGradient.GetBorder())
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{
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basegfx::B2DVector aFullVec(aEndPos - aStartPos);
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const double fLen = (aFullVec.getLength() * (100.0 - (double)rG.aGradient.GetBorder())) / 100.0;
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aFullVec.normalize();
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aEndPos = aStartPos + (aFullVec * fLen);
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}
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if(rG.aGradient.GetAngle())
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{
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const double fAngle = (double)rG.aGradient.GetAngle() * (F_PI180 / 10.0);
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const basegfx::B2DHomMatrix aTransformation(basegfx::tools::createRotateAroundPoint(aCenter, -fAngle));
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aStartPos *= aTransformation;
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aEndPos *= aTransformation;
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}
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break;
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}
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case XGRAD_RADIAL :
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case XGRAD_SQUARE :
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{
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aStartPos = basegfx::B2DPoint(aRange.getMinX(), aRange.getMaximum().getY());
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aEndPos = basegfx::B2DPoint(aRange.getMinX(), aRange.getMinY());
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if(rG.aGradient.GetBorder())
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{
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basegfx::B2DVector aFullVec(aStartPos - aEndPos);
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const double fLen = (aFullVec.getLength() * (100.0 - (double)rG.aGradient.GetBorder())) / 100.0;
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aFullVec.normalize();
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aStartPos = aEndPos + (aFullVec * fLen);
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}
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if(rG.aGradient.GetAngle())
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{
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const double fAngle = (double)rG.aGradient.GetAngle() * (F_PI180 / 10.0);
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const basegfx::B2DHomMatrix aTransformation(basegfx::tools::createRotateAroundPoint(aEndPos, -fAngle));
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aStartPos *= aTransformation;
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aEndPos *= aTransformation;
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}
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if(rG.aGradient.GetXOffset() || rG.aGradient.GetYOffset())
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{
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basegfx::B2DPoint aOffset(
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(aRange.getWidth() * rG.aGradient.GetXOffset()) / 100.0,
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(aRange.getHeight() * rG.aGradient.GetYOffset()) / 100.0);
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aStartPos += aOffset;
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aEndPos += aOffset;
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}
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break;
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}
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case XGRAD_ELLIPTICAL :
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case XGRAD_RECT :
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{
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aStartPos = basegfx::B2DPoint(aRange.getMinX(), aCenter.getY());
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aEndPos = basegfx::B2DPoint(aRange.getMinX(), aRange.getMinY());
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if(rG.aGradient.GetBorder())
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{
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basegfx::B2DVector aFullVec(aStartPos - aEndPos);
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const double fLen = (aFullVec.getLength() * (100.0 - (double)rG.aGradient.GetBorder())) / 100.0;
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aFullVec.normalize();
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aStartPos = aEndPos + (aFullVec * fLen);
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}
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if(rG.aGradient.GetAngle())
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{
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const double fAngle = (double)rG.aGradient.GetAngle() * (F_PI180 / 10.0);
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const basegfx::B2DHomMatrix aTransformation(basegfx::tools::createRotateAroundPoint(aEndPos, -fAngle));
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aStartPos *= aTransformation;
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aEndPos *= aTransformation;
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}
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if(rG.aGradient.GetXOffset() || rG.aGradient.GetYOffset())
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{
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basegfx::B2DPoint aOffset(
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(aRange.getWidth() * rG.aGradient.GetXOffset()) / 100.0,
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(aRange.getHeight() * rG.aGradient.GetYOffset()) / 100.0);
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aStartPos += aOffset;
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aEndPos += aOffset;
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}
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break;
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}
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}
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// set values for vector positions now
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rV.maPositionA = aStartPos;
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rV.maPositionB = aEndPos;
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}
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//////////////////////////////////////////////////////////////////////////////
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void GradTransformer::VecToGrad(GradTransVector& rV, GradTransGradient& rG, GradTransGradient& rGOld, const SdrObject* pObj,
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sal_Bool bMoveSingle, sal_Bool bMoveFirst)
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{
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// fill old gradient to new gradient to have a base
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rG = rGOld;
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// handle color changes
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if(rV.aCol1 != rGOld.aGradient.GetStartColor())
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{
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rG.aGradient.SetStartColor(rV.aCol1);
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rG.aGradient.SetStartIntens(100);
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}
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if(rV.aCol2 != rGOld.aGradient.GetEndColor())
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{
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rG.aGradient.SetEndColor(rV.aCol2);
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rG.aGradient.SetEndIntens(100);
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}
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// calc the basic positions
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const Rectangle aObjectSnapRectangle(pObj->GetSnapRect());
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const basegfx::B2DRange aRange(aObjectSnapRectangle.Left(), aObjectSnapRectangle.Top(), aObjectSnapRectangle.Right(), aObjectSnapRectangle.Bottom());
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const basegfx::B2DPoint aCenter(aRange.getCenter());
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basegfx::B2DPoint aStartPos(rV.maPositionA);
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basegfx::B2DPoint aEndPos(rV.maPositionB);
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switch(rG.aGradient.GetGradientStyle())
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{
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case XGRAD_LINEAR :
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{
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if(!bMoveSingle || (bMoveSingle && !bMoveFirst))
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{
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basegfx::B2DVector aFullVec(aEndPos - aStartPos);
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if(bMoveSingle)
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{
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aFullVec = aEndPos - aCenter;
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}
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aFullVec.normalize();
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double fNewFullAngle(atan2(aFullVec.getY(), aFullVec.getX()));
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fNewFullAngle /= F_PI180;
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fNewFullAngle *= -10.0;
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fNewFullAngle += 900.0;
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// clip
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while(fNewFullAngle < 0.0)
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{
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fNewFullAngle += 3600.0;
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}
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while(fNewFullAngle >= 3600.0)
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{
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fNewFullAngle -= 3600.0;
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}
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// to int and set
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sal_Int32 nNewAngle = FRound(fNewFullAngle);
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if(nNewAngle != rGOld.aGradient.GetAngle())
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{
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rG.aGradient.SetAngle(nNewAngle);
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}
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}
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if(!bMoveSingle || (bMoveSingle && bMoveFirst))
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{
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const basegfx::B2DVector aFullVec(aEndPos - aStartPos);
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const basegfx::B2DPoint aBottomLeft(aRange.getMinX(), aRange.getMaximum().getY());
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const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY());
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const basegfx::B2DVector aOldVec(aBottomLeft - aTopLeft);
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const double fFullLen(aFullVec.getLength());
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const double fOldLen(aOldVec.getLength());
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const double fNewBorder((fFullLen * 100.0) / fOldLen);
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sal_Int32 nNewBorder(100L - FRound(fNewBorder));
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// clip
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if(nNewBorder < 0L)
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{
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nNewBorder = 0L;
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}
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if(nNewBorder > 100L)
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{
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nNewBorder = 100L;
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}
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// set
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if(nNewBorder != rG.aGradient.GetBorder())
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{
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rG.aGradient.SetBorder((sal_uInt16)nNewBorder);
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}
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}
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break;
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}
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case XGRAD_AXIAL :
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{
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if(!bMoveSingle || (bMoveSingle && !bMoveFirst))
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{
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basegfx::B2DVector aFullVec(aEndPos - aCenter);
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const basegfx::B2DVector aOldVec(basegfx::B2DPoint(aCenter.getX(), aRange.getMaximum().getY()) - aCenter);
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const double fFullLen(aFullVec.getLength());
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const double fOldLen(aOldVec.getLength());
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const double fNewBorder((fFullLen * 100.0) / fOldLen);
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sal_Int32 nNewBorder = 100 - FRound(fNewBorder);
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// clip
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if(nNewBorder < 0L)
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{
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nNewBorder = 0L;
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}
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if(nNewBorder > 100L)
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{
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nNewBorder = 100L;
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}
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// set
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if(nNewBorder != rG.aGradient.GetBorder())
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{
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rG.aGradient.SetBorder((sal_uInt16)nNewBorder);
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}
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aFullVec.normalize();
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double fNewFullAngle(atan2(aFullVec.getY(), aFullVec.getX()));
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fNewFullAngle /= F_PI180;
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fNewFullAngle *= -10.0;
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fNewFullAngle += 900.0;
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// clip
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while(fNewFullAngle < 0.0)
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{
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fNewFullAngle += 3600.0;
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}
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while(fNewFullAngle >= 3600.0)
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{
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fNewFullAngle -= 3600.0;
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}
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// to int and set
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const sal_Int32 nNewAngle(FRound(fNewFullAngle));
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if(nNewAngle != rGOld.aGradient.GetAngle())
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{
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rG.aGradient.SetAngle(nNewAngle);
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}
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}
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break;
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}
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case XGRAD_RADIAL :
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case XGRAD_SQUARE :
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{
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if(!bMoveSingle || (bMoveSingle && !bMoveFirst))
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{
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const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY());
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const basegfx::B2DPoint aOffset(aEndPos - aTopLeft);
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sal_Int32 nNewXOffset(FRound((aOffset.getX() * 100.0) / aRange.getWidth()));
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sal_Int32 nNewYOffset(FRound((aOffset.getY() * 100.0) / aRange.getHeight()));
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// clip
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if(nNewXOffset < 0L)
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{
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nNewXOffset = 0L;
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}
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if(nNewXOffset > 100L)
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{
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nNewXOffset = 100L;
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}
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if(nNewYOffset < 0L)
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{
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nNewYOffset = 0L;
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}
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if(nNewYOffset > 100L)
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{
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nNewYOffset = 100L;
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}
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rG.aGradient.SetXOffset((sal_uInt16)nNewXOffset);
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rG.aGradient.SetYOffset((sal_uInt16)nNewYOffset);
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aStartPos -= aOffset;
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aEndPos -= aOffset;
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}
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if(!bMoveSingle || (bMoveSingle && bMoveFirst))
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{
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basegfx::B2DVector aFullVec(aStartPos - aEndPos);
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const basegfx::B2DPoint aBottomLeft(aRange.getMinX(), aRange.getMaximum().getY());
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const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY());
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const basegfx::B2DVector aOldVec(aBottomLeft - aTopLeft);
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const double fFullLen(aFullVec.getLength());
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const double fOldLen(aOldVec.getLength());
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const double fNewBorder((fFullLen * 100.0) / fOldLen);
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sal_Int32 nNewBorder(100L - FRound(fNewBorder));
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// clip
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if(nNewBorder < 0L)
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{
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nNewBorder = 0L;
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}
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if(nNewBorder > 100L)
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{
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nNewBorder = 100L;
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}
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// set
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if(nNewBorder != rG.aGradient.GetBorder())
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{
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rG.aGradient.SetBorder((sal_uInt16)nNewBorder);
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}
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// angle is not definitely necessary for these modes, but it makes
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// controlling more fun for the user
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aFullVec.normalize();
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double fNewFullAngle(atan2(aFullVec.getY(), aFullVec.getX()));
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fNewFullAngle /= F_PI180;
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fNewFullAngle *= -10.0;
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fNewFullAngle += 900.0;
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// clip
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while(fNewFullAngle < 0.0)
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{
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fNewFullAngle += 3600.0;
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}
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while(fNewFullAngle >= 3600.0)
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{
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fNewFullAngle -= 3600.0;
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}
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// to int and set
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const sal_Int32 nNewAngle(FRound(fNewFullAngle));
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if(nNewAngle != rGOld.aGradient.GetAngle())
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{
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rG.aGradient.SetAngle(nNewAngle);
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}
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}
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break;
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}
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case XGRAD_ELLIPTICAL :
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case XGRAD_RECT :
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{
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if(!bMoveSingle || (bMoveSingle && !bMoveFirst))
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{
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const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY());
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const basegfx::B2DPoint aOffset(aEndPos - aTopLeft);
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sal_Int32 nNewXOffset(FRound((aOffset.getX() * 100.0) / aRange.getWidth()));
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sal_Int32 nNewYOffset(FRound((aOffset.getY() * 100.0) / aRange.getHeight()));
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// clip
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if(nNewXOffset < 0L)
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{
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nNewXOffset = 0L;
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}
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if(nNewXOffset > 100L)
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{
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nNewXOffset = 100L;
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}
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if(nNewYOffset < 0L)
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{
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nNewYOffset = 0L;
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}
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if(nNewYOffset > 100L)
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{
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nNewYOffset = 100L;
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}
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rG.aGradient.SetXOffset((sal_uInt16)nNewXOffset);
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rG.aGradient.SetYOffset((sal_uInt16)nNewYOffset);
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aStartPos -= aOffset;
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aEndPos -= aOffset;
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}
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if(!bMoveSingle || (bMoveSingle && bMoveFirst))
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{
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basegfx::B2DVector aFullVec(aStartPos - aEndPos);
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const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY());
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const basegfx::B2DPoint aCenterLeft(aRange.getMinX(), aRange.getHeight());
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const basegfx::B2DVector aOldVec(aCenterLeft - aTopLeft);
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const double fFullLen(aFullVec.getLength());
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const double fOldLen(aOldVec.getLength());
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const double fNewBorder((fFullLen * 100.0) / fOldLen);
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sal_Int32 nNewBorder(100L - FRound(fNewBorder));
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// clip
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if(nNewBorder < 0L)
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{
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nNewBorder = 0L;
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}
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if(nNewBorder > 100L)
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{
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nNewBorder = 100L;
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}
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// set
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if(nNewBorder != rG.aGradient.GetBorder())
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{
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rG.aGradient.SetBorder((sal_uInt16)nNewBorder);
|
|
}
|
|
|
|
// angle is not definitely necessary for these modes, but it makes
|
|
// controlling more fun for the user
|
|
aFullVec.normalize();
|
|
double fNewFullAngle(atan2(aFullVec.getY(), aFullVec.getX()));
|
|
fNewFullAngle /= F_PI180;
|
|
fNewFullAngle *= -10.0;
|
|
fNewFullAngle += 900.0;
|
|
|
|
// clip
|
|
while(fNewFullAngle < 0.0)
|
|
{
|
|
fNewFullAngle += 3600.0;
|
|
}
|
|
|
|
while(fNewFullAngle >= 3600.0)
|
|
{
|
|
fNewFullAngle -= 3600.0;
|
|
}
|
|
|
|
// to int and set
|
|
const sal_Int32 nNewAngle(FRound(fNewFullAngle));
|
|
|
|
if(nNewAngle != rGOld.aGradient.GetAngle())
|
|
{
|
|
rG.aGradient.SetAngle(nNewAngle);
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// eof
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|