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Diffstat (limited to 'svx/source/svdraw/gradtrns.cxx')
| -rw-r--r-- | svx/source/svdraw/gradtrns.cxx | 527 |
1 files changed, 527 insertions, 0 deletions
diff --git a/svx/source/svdraw/gradtrns.cxx b/svx/source/svdraw/gradtrns.cxx new file mode 100644 index 000000000..ecb219836 --- /dev/null +++ b/svx/source/svdraw/gradtrns.cxx @@ -0,0 +1,527 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include "gradtrns.hxx" +#include <svx/svdobj.hxx> +#include <basegfx/range/b2drange.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <tools/helpers.hxx> +#include <vcl/canvastools.hxx> + + +void GradTransformer::GradToVec(GradTransGradient const & rG, GradTransVector& rV, const SdrObject* pObj) +{ + // handle start color + rV.aCol1 = rG.aGradient.GetStartColor(); + if(100 != rG.aGradient.GetStartIntens()) + { + const double fFact(static_cast<double>(rG.aGradient.GetStartIntens()) / 100.0); + rV.aCol1 = Color(rV.aCol1.getBColor() * fFact); + } + + // handle end color + rV.aCol2 = rG.aGradient.GetEndColor(); + if(100 != rG.aGradient.GetEndIntens()) + { + const double fFact(static_cast<double>(rG.aGradient.GetEndIntens()) / 100.0); + rV.aCol2 = Color(rV.aCol2.getBColor() * fFact); + } + + // calc the basic positions + const tools::Rectangle aObjectSnapRectangle(pObj->GetSnapRect()); + const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(aObjectSnapRectangle); + const basegfx::B2DPoint aCenter(aRange.getCenter()); + basegfx::B2DPoint aStartPos, aEndPos; + + switch(rG.aGradient.GetGradientStyle()) + { + case css::awt::GradientStyle_LINEAR : + { + aStartPos = basegfx::B2DPoint(aCenter.getX(), aRange.getMinY()); + aEndPos = basegfx::B2DPoint(aCenter.getX(), aRange.getMaximum().getY()); + + if(rG.aGradient.GetBorder()) + { + basegfx::B2DVector aFullVec(aStartPos - aEndPos); + const double fLen = (aFullVec.getLength() * (100.0 - static_cast<double>(rG.aGradient.GetBorder()))) / 100.0; + aFullVec.normalize(); + aStartPos = aEndPos + (aFullVec * fLen); + } + + if(rG.aGradient.GetAngle()) + { + const double fAngle = basegfx::deg2rad(rG.aGradient.GetAngle() / 10.0); + const basegfx::B2DHomMatrix aTransformation(basegfx::utils::createRotateAroundPoint(aCenter, -fAngle)); + + aStartPos *= aTransformation; + aEndPos *= aTransformation; + } + break; + } + case css::awt::GradientStyle_AXIAL : + { + aStartPos = aCenter; + aEndPos = basegfx::B2DPoint(aCenter.getX(), aRange.getMaximum().getY()); + + if(rG.aGradient.GetBorder()) + { + basegfx::B2DVector aFullVec(aEndPos - aStartPos); + const double fLen = (aFullVec.getLength() * (100.0 - static_cast<double>(rG.aGradient.GetBorder()))) / 100.0; + aFullVec.normalize(); + aEndPos = aStartPos + (aFullVec * fLen); + } + + if(rG.aGradient.GetAngle()) + { + const double fAngle = basegfx::deg2rad(rG.aGradient.GetAngle() / 10.0); + const basegfx::B2DHomMatrix aTransformation(basegfx::utils::createRotateAroundPoint(aCenter, -fAngle)); + + aStartPos *= aTransformation; + aEndPos *= aTransformation; + } + break; + } + case css::awt::GradientStyle_RADIAL : + case css::awt::GradientStyle_SQUARE : + { + aStartPos = basegfx::B2DPoint(aRange.getMinX(), aRange.getMaximum().getY()); + aEndPos = basegfx::B2DPoint(aRange.getMinX(), aRange.getMinY()); + + if(rG.aGradient.GetBorder()) + { + basegfx::B2DVector aFullVec(aStartPos - aEndPos); + const double fLen = (aFullVec.getLength() * (100.0 - static_cast<double>(rG.aGradient.GetBorder()))) / 100.0; + aFullVec.normalize(); + aStartPos = aEndPos + (aFullVec * fLen); + } + + if(rG.aGradient.GetAngle()) + { + const double fAngle = basegfx::deg2rad(rG.aGradient.GetAngle() / 10.0); + const basegfx::B2DHomMatrix aTransformation(basegfx::utils::createRotateAroundPoint(aEndPos, -fAngle)); + + aStartPos *= aTransformation; + aEndPos *= aTransformation; + } + + if(rG.aGradient.GetXOffset() || rG.aGradient.GetYOffset()) + { + basegfx::B2DPoint aOffset( + (aRange.getWidth() * rG.aGradient.GetXOffset()) / 100.0, + (aRange.getHeight() * rG.aGradient.GetYOffset()) / 100.0); + + aStartPos += aOffset; + aEndPos += aOffset; + } + + break; + } + case css::awt::GradientStyle_ELLIPTICAL : + case css::awt::GradientStyle_RECT : + { + aStartPos = basegfx::B2DPoint(aRange.getMinX(), aCenter.getY()); + aEndPos = basegfx::B2DPoint(aRange.getMinX(), aRange.getMinY()); + + if(rG.aGradient.GetBorder()) + { + basegfx::B2DVector aFullVec(aStartPos - aEndPos); + const double fLen = (aFullVec.getLength() * (100.0 - static_cast<double>(rG.aGradient.GetBorder()))) / 100.0; + aFullVec.normalize(); + aStartPos = aEndPos + (aFullVec * fLen); + } + + if(rG.aGradient.GetAngle()) + { + const double fAngle = basegfx::deg2rad(rG.aGradient.GetAngle() / 10.0); + const basegfx::B2DHomMatrix aTransformation(basegfx::utils::createRotateAroundPoint(aEndPos, -fAngle)); + + aStartPos *= aTransformation; + aEndPos *= aTransformation; + } + + if(rG.aGradient.GetXOffset() || rG.aGradient.GetYOffset()) + { + basegfx::B2DPoint aOffset( + (aRange.getWidth() * rG.aGradient.GetXOffset()) / 100.0, + (aRange.getHeight() * rG.aGradient.GetYOffset()) / 100.0); + + aStartPos += aOffset; + aEndPos += aOffset; + } + + break; + } + default: + break; + } + + // set values for vector positions now + rV.maPositionA = aStartPos; + rV.maPositionB = aEndPos; +} + + +void GradTransformer::VecToGrad(GradTransVector const & rV, GradTransGradient& rG, GradTransGradient const & rGOld, const SdrObject* pObj, + bool bMoveSingle, bool bMoveFirst) +{ + // fill old gradient to new gradient to have a base + rG = rGOld; + + // handle color changes + if(rV.aCol1 != rGOld.aGradient.GetStartColor()) + { + rG.aGradient.SetStartColor(rV.aCol1); + rG.aGradient.SetStartIntens(100); + } + if(rV.aCol2 != rGOld.aGradient.GetEndColor()) + { + rG.aGradient.SetEndColor(rV.aCol2); + rG.aGradient.SetEndIntens(100); + } + + // calc the basic positions + const tools::Rectangle aObjectSnapRectangle(pObj->GetSnapRect()); + const basegfx::B2DRange aRange = vcl::unotools::b2DRectangleFromRectangle(aObjectSnapRectangle); + const basegfx::B2DPoint aCenter(aRange.getCenter()); + basegfx::B2DPoint aStartPos(rV.maPositionA); + basegfx::B2DPoint aEndPos(rV.maPositionB); + + switch(rG.aGradient.GetGradientStyle()) + { + case css::awt::GradientStyle_LINEAR : + { + if(!bMoveSingle || !bMoveFirst) + { + basegfx::B2DVector aFullVec(aEndPos - aStartPos); + + if(bMoveSingle) + { + aFullVec = aEndPos - aCenter; + } + + 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 + sal_Int32 nNewAngle = FRound(fNewFullAngle); + + if(nNewAngle != rGOld.aGradient.GetAngle()) + { + rG.aGradient.SetAngle(nNewAngle); + } + } + + if(!bMoveSingle || bMoveFirst) + { + const basegfx::B2DVector aFullVec(aEndPos - aStartPos); + const basegfx::B2DPoint aBottomLeft(aRange.getMinX(), aRange.getMaximum().getY()); + const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY()); + const basegfx::B2DVector aOldVec(aBottomLeft - aTopLeft); + const double fFullLen(aFullVec.getLength()); + const double fOldLen(aOldVec.getLength()); + const double fNewBorder((fFullLen * 100.0) / fOldLen); + sal_Int32 nNewBorder(100 - FRound(fNewBorder)); + + // clip + if(nNewBorder < 0) + { + nNewBorder = 0; + } + + if(nNewBorder > 100) + { + nNewBorder = 100; + } + + // set + if(nNewBorder != rG.aGradient.GetBorder()) + { + rG.aGradient.SetBorder(static_cast<sal_uInt16>(nNewBorder)); + } + } + + break; + } + case css::awt::GradientStyle_AXIAL : + { + if(!bMoveSingle || !bMoveFirst) + { + basegfx::B2DVector aFullVec(aEndPos - aCenter); + const basegfx::B2DVector aOldVec(basegfx::B2DPoint(aCenter.getX(), aRange.getMaximum().getY()) - aCenter); + const double fFullLen(aFullVec.getLength()); + const double fOldLen(aOldVec.getLength()); + const double fNewBorder((fFullLen * 100.0) / fOldLen); + sal_Int32 nNewBorder = 100 - FRound(fNewBorder); + + // clip + if(nNewBorder < 0) + { + nNewBorder = 0; + } + + if(nNewBorder > 100) + { + nNewBorder = 100; + } + + // set + if(nNewBorder != rG.aGradient.GetBorder()) + { + rG.aGradient.SetBorder(static_cast<sal_uInt16>(nNewBorder)); + } + + 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 sal_Int32 nNewAngle(FRound(fNewFullAngle)); + + if(nNewAngle != rGOld.aGradient.GetAngle()) + { + rG.aGradient.SetAngle(nNewAngle); + } + } + + break; + } + case css::awt::GradientStyle_RADIAL : + case css::awt::GradientStyle_SQUARE : + { + if(!bMoveSingle || !bMoveFirst) + { + const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY()); + const basegfx::B2DPoint aOffset(aEndPos - aTopLeft); + sal_Int32 nNewXOffset(FRound((aOffset.getX() * 100.0) / aRange.getWidth())); + sal_Int32 nNewYOffset(FRound((aOffset.getY() * 100.0) / aRange.getHeight())); + + // clip + if(nNewXOffset < 0) + { + nNewXOffset = 0; + } + + if(nNewXOffset > 100) + { + nNewXOffset = 100; + } + + if(nNewYOffset < 0) + { + nNewYOffset = 0; + } + + if(nNewYOffset > 100) + { + nNewYOffset = 100; + } + + rG.aGradient.SetXOffset(static_cast<sal_uInt16>(nNewXOffset)); + rG.aGradient.SetYOffset(static_cast<sal_uInt16>(nNewYOffset)); + + aStartPos -= aOffset; + aEndPos -= aOffset; + } + + if(!bMoveSingle || bMoveFirst) + { + basegfx::B2DVector aFullVec(aStartPos - aEndPos); + const basegfx::B2DPoint aBottomLeft(aRange.getMinX(), aRange.getMaximum().getY()); + const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY()); + const basegfx::B2DVector aOldVec(aBottomLeft - aTopLeft); + const double fFullLen(aFullVec.getLength()); + const double fOldLen(aOldVec.getLength()); + const double fNewBorder((fFullLen * 100.0) / fOldLen); + sal_Int32 nNewBorder(100 - FRound(fNewBorder)); + + // clip + if(nNewBorder < 0) + { + nNewBorder = 0; + } + + if(nNewBorder > 100) + { + nNewBorder = 100; + } + + // set + 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 sal_Int32 nNewAngle(FRound(fNewFullAngle)); + + if(nNewAngle != rGOld.aGradient.GetAngle()) + { + rG.aGradient.SetAngle(nNewAngle); + } + } + + break; + } + case css::awt::GradientStyle_ELLIPTICAL : + case css::awt::GradientStyle_RECT : + { + if(!bMoveSingle || !bMoveFirst) + { + const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY()); + const basegfx::B2DPoint aOffset(aEndPos - aTopLeft); + sal_Int32 nNewXOffset(FRound((aOffset.getX() * 100.0) / aRange.getWidth())); + sal_Int32 nNewYOffset(FRound((aOffset.getY() * 100.0) / aRange.getHeight())); + + // clip + if(nNewXOffset < 0) + { + nNewXOffset = 0; + } + + if(nNewXOffset > 100) + { + nNewXOffset = 100; + } + + if(nNewYOffset < 0) + { + nNewYOffset = 0; + } + + if(nNewYOffset > 100) + { + nNewYOffset = 100; + } + + rG.aGradient.SetXOffset(static_cast<sal_uInt16>(nNewXOffset)); + rG.aGradient.SetYOffset(static_cast<sal_uInt16>(nNewYOffset)); + + aStartPos -= aOffset; + aEndPos -= aOffset; + } + + if(!bMoveSingle || bMoveFirst) + { + basegfx::B2DVector aFullVec(aStartPos - aEndPos); + const basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY()); + const basegfx::B2DPoint aCenterLeft(aRange.getMinX(), aCenter.getY()); + const basegfx::B2DVector aOldVec(aCenterLeft - aTopLeft); + const double fFullLen(aFullVec.getLength()); + const double fOldLen(aOldVec.getLength()); + const double fNewBorder((fFullLen * 100.0) / fOldLen); + sal_Int32 nNewBorder(100 - FRound(fNewBorder)); + + // clip + if(nNewBorder < 0) + { + nNewBorder = 0; + } + + if(nNewBorder > 100) + { + nNewBorder = 100; + } + + // set + 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 sal_Int32 nNewAngle(FRound(fNewFullAngle)); + + if(nNewAngle != rGOld.aGradient.GetAngle()) + { + rG.aGradient.SetAngle(nNewAngle); + } + } + + break; + } + default: + break; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |