531 lines
18 KiB
C++
531 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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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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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 <tools/helpers.hxx>
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#include <vcl/canvastools.hxx>
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void GradTransformer::GradToVec(GradTransGradient const & rG, GradTransVector& rV, const SdrObject* pObj)
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{
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// handle start color
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rV.aCol1 = Color(rG.aGradient.GetColorStops().front().getStopColor());
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if(100 != rG.aGradient.GetStartIntens())
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{
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const double fFact(static_cast<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 = Color(rG.aGradient.GetColorStops().back().getStopColor());
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if(100 != rG.aGradient.GetEndIntens())
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{
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const double fFact(static_cast<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 tools::Rectangle aObjectSnapRectangle(pObj->GetSnapRect());
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const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(aObjectSnapRectangle);
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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 css::awt::GradientStyle_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 - static_cast<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 = toRadians(rG.aGradient.GetAngle());
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const basegfx::B2DHomMatrix aTransformation(basegfx::utils::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 css::awt::GradientStyle_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 - static_cast<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 = toRadians(rG.aGradient.GetAngle());
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const basegfx::B2DHomMatrix aTransformation(basegfx::utils::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 css::awt::GradientStyle_RADIAL :
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case css::awt::GradientStyle_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 - static_cast<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 = toRadians(rG.aGradient.GetAngle());
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const basegfx::B2DHomMatrix aTransformation(basegfx::utils::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 css::awt::GradientStyle_ELLIPTICAL :
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case css::awt::GradientStyle_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 - static_cast<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 = toRadians(rG.aGradient.GetAngle());
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const basegfx::B2DHomMatrix aTransformation(basegfx::utils::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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default:
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break;
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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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void GradTransformer::VecToGrad(GradTransVector const & rV, GradTransGradient& rG, GradTransGradient const & rGOld, const SdrObject* pObj,
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bool bMoveSingle, 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 != Color(rGOld.aGradient.GetColorStops().front().getStopColor()))
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{
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basegfx::BColorStops aNewColorStops(rG.aGradient.GetColorStops());
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aNewColorStops.replaceStartColor(rV.aCol1.getBColor());
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rG.aGradient.SetColorStops(aNewColorStops);
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rG.aGradient.SetStartIntens(100);
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}
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if(rV.aCol2 != Color(rGOld.aGradient.GetColorStops().back().getStopColor()))
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{
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basegfx::BColorStops aNewColorStops(rG.aGradient.GetColorStops());
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aNewColorStops.replaceEndColor(rV.aCol2.getBColor());
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rG.aGradient.SetColorStops(aNewColorStops);
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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 tools::Rectangle aObjectSnapRectangle(pObj->GetSnapRect());
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const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(aObjectSnapRectangle);
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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 css::awt::GradientStyle_LINEAR :
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{
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if(!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(basegfx::rad2deg(atan2(aFullVec.getY(), aFullVec.getX())));
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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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Degree10 nNewAngle(basegfx::fround<sal_Int16>(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 || 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(100 - basegfx::fround(fNewBorder));
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// clip
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if(nNewBorder < 0)
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{
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nNewBorder = 0;
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}
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if(nNewBorder > 100)
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{
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nNewBorder = 100;
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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(static_cast<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 css::awt::GradientStyle_AXIAL :
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{
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if(!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 - basegfx::fround(fNewBorder);
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// clip
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if(nNewBorder < 0)
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{
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nNewBorder = 0;
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}
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if(nNewBorder > 100)
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{
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nNewBorder = 100;
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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(static_cast<sal_uInt16>(nNewBorder));
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}
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aFullVec.normalize();
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double fNewFullAngle(basegfx::rad2deg(atan2(aFullVec.getY(), aFullVec.getX())));
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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 Degree10 nNewAngle(basegfx::fround<sal_Int16>(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 css::awt::GradientStyle_RADIAL :
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case css::awt::GradientStyle_SQUARE :
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{
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if(!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(basegfx::fround(aOffset.getX() * 100.0 / aRange.getWidth()));
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sal_Int32 nNewYOffset(basegfx::fround(aOffset.getY() * 100.0 / aRange.getHeight()));
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// clip
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if(nNewXOffset < 0)
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{
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nNewXOffset = 0;
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}
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if(nNewXOffset > 100)
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{
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nNewXOffset = 100;
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}
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if(nNewYOffset < 0)
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{
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nNewYOffset = 0;
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}
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if(nNewYOffset > 100)
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{
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nNewYOffset = 100;
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}
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rG.aGradient.SetXOffset(static_cast<sal_uInt16>(nNewXOffset));
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rG.aGradient.SetYOffset(static_cast<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 || 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(100 - basegfx::fround(fNewBorder));
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// clip
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if(nNewBorder < 0)
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{
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nNewBorder = 0;
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}
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if(nNewBorder > 100)
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{
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nNewBorder = 100;
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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(static_cast<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(basegfx::rad2deg(atan2(aFullVec.getY(), aFullVec.getX())));
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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 Degree10 nNewAngle(basegfx::fround<sal_Int16>(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 css::awt::GradientStyle_ELLIPTICAL :
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case css::awt::GradientStyle_RECT :
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{
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if(!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(basegfx::fround(aOffset.getX() * 100.0 / aRange.getWidth()));
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sal_Int32 nNewYOffset(basegfx::fround(aOffset.getY() * 100.0 / aRange.getHeight()));
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// clip
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if(nNewXOffset < 0)
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{
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nNewXOffset = 0;
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}
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if(nNewXOffset > 100)
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{
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nNewXOffset = 100;
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}
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if(nNewYOffset < 0)
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{
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nNewYOffset = 0;
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}
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if(nNewYOffset > 100)
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{
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nNewYOffset = 100;
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}
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rG.aGradient.SetXOffset(static_cast<sal_uInt16>(nNewXOffset));
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rG.aGradient.SetYOffset(static_cast<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 || 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(), aCenter.getY());
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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(100 - basegfx::fround(fNewBorder));
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// clip
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if(nNewBorder < 0)
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{
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nNewBorder = 0;
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}
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if(nNewBorder > 100)
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{
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nNewBorder = 100;
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}
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// set
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|
if(nNewBorder != rG.aGradient.GetBorder())
|
|
{
|
|
rG.aGradient.SetBorder(static_cast<sal_uInt16>(nNewBorder));
|
|
}
|
|
|
|
// angle is not definitely necessary for these modes, but it makes
|
|
// controlling more fun for the user
|
|
aFullVec.normalize();
|
|
double fNewFullAngle(basegfx::rad2deg(atan2(aFullVec.getY(), aFullVec.getX())));
|
|
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 Degree10 nNewAngle(basegfx::fround<sal_Int16>(fNewFullAngle));
|
|
|
|
if(nNewAngle != rGOld.aGradient.GetAngle())
|
|
{
|
|
rG.aGradient.SetAngle(nNewAngle);
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|