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| -rw-r--r-- | drawinglayer/source/processor2d/vclprocessor2d.cxx | 1480 |
1 files changed, 1480 insertions, 0 deletions
diff --git a/drawinglayer/source/processor2d/vclprocessor2d.cxx b/drawinglayer/source/processor2d/vclprocessor2d.cxx new file mode 100644 index 000000000..b77c1d9c0 --- /dev/null +++ b/drawinglayer/source/processor2d/vclprocessor2d.cxx @@ -0,0 +1,1480 @@ +/* -*- 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 "vclprocessor2d.hxx" + +#include "getdigitlanguage.hxx" +#include "vclhelperbufferdevice.hxx" +#include <cmath> +#include <comphelper/string.hxx> +#include <svtools/optionsdrawinglayer.hxx> +#include <tools/debug.hxx> +#include <vcl/graph.hxx> +#include <vcl/outdev.hxx> +#include <rtl/ustrbuf.hxx> +#include <sal/log.hxx> +#include <toolkit/helper/vclunohelper.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/polygon/b2dpolygonclipper.hxx> +#include <basegfx/color/bcolor.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> +#include <drawinglayer/primitive2d/textprimitive2d.hxx> +#include <drawinglayer/primitive2d/textdecoratedprimitive2d.hxx> +#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx> +#include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx> +#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx> +#include <drawinglayer/primitive2d/PolygonStrokePrimitive2D.hxx> +#include <drawinglayer/primitive2d/PolyPolygonGraphicPrimitive2D.hxx> +#include <drawinglayer/primitive2d/maskprimitive2d.hxx> +#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx> +#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx> +#include <drawinglayer/primitive2d/transparenceprimitive2d.hxx> +#include <drawinglayer/primitive2d/transformprimitive2d.hxx> +#include <drawinglayer/primitive2d/markerarrayprimitive2d.hxx> +#include <drawinglayer/primitive2d/pagepreviewprimitive2d.hxx> +#include <drawinglayer/primitive2d/textenumsprimitive2d.hxx> +#include <drawinglayer/primitive2d/svggradientprimitive2d.hxx> +// for support of Title/Description in all apps when embedding pictures +#include <drawinglayer/primitive2d/objectinfoprimitive2d.hxx> +// control support +#include <drawinglayer/primitive2d/textlayoutdevice.hxx> + +#include <drawinglayer/primitive2d/pointarrayprimitive2d.hxx> +#include <drawinglayer/primitive2d/epsprimitive2d.hxx> + +using namespace com::sun::star; + +namespace +{ +sal_uInt32 calculateStepsForSvgGradient(const basegfx::BColor& rColorA, + const basegfx::BColor& rColorB, double fDelta, + double fDiscreteUnit) +{ + // use color distance, assume to do every color step + sal_uInt32 nSteps(basegfx::fround(rColorA.getDistance(rColorB) * 255.0)); + + if (nSteps) + { + // calc discrete length to change color each discrete unit (pixel) + const sal_uInt32 nDistSteps(basegfx::fround(fDelta / fDiscreteUnit)); + + nSteps = std::min(nSteps, nDistSteps); + } + + // reduce quality to 3 discrete units or every 3rd color step for rendering + nSteps /= 2; + + // roughly cut when too big or too small (not full quality, reduce complexity) + nSteps = std::min(nSteps, sal_uInt32(255)); + nSteps = std::max(nSteps, sal_uInt32(1)); + + return nSteps; +} +} + +namespace drawinglayer::processor2d +{ +// rendering support + +// directdraw of text simple portion or decorated portion primitive. When decorated, all the extra +// information is translated to VCL parameters and set at the font. +// Acceptance is restricted to no shearing and positive scaling in X and Y (no font mirroring +// for VCL) +void VclProcessor2D::RenderTextSimpleOrDecoratedPortionPrimitive2D( + const primitive2d::TextSimplePortionPrimitive2D& rTextCandidate) +{ + // decompose matrix to have position and size of text + basegfx::B2DHomMatrix aLocalTransform(maCurrentTransformation + * rTextCandidate.getTextTransform()); + basegfx::B2DVector aFontScaling, aTranslate; + double fRotate, fShearX; + aLocalTransform.decompose(aFontScaling, aTranslate, fRotate, fShearX); + bool bPrimitiveAccepted(false); + + // tdf#95581: Assume tiny shears are rounding artefacts or whatever and can be ignored, + // especially if the effect is less than a pixel. + if (std::abs(aFontScaling.getY() * fShearX) < 1) + { + if (basegfx::fTools::less(aFontScaling.getX(), 0.0) + && basegfx::fTools::less(aFontScaling.getY(), 0.0)) + { + // handle special case: If scale is negative in (x,y) (3rd quadrant), it can + // be expressed as rotation by PI. Use this since the Font rendering will not + // apply the negative scales in any form + aFontScaling = basegfx::absolute(aFontScaling); + fRotate += M_PI; + } + + if (basegfx::fTools::more(aFontScaling.getX(), 0.0) + && basegfx::fTools::more(aFontScaling.getY(), 0.0)) + { + // Get the VCL font (use FontHeight as FontWidth) + vcl::Font aFont(primitive2d::getVclFontFromFontAttribute( + rTextCandidate.getFontAttribute(), aFontScaling.getX(), aFontScaling.getY(), + fRotate, rTextCandidate.getLocale())); + + // Don't draw fonts without height + if (aFont.GetFontHeight() <= 0) + return; + + // set FillColor Attribute + const Color aFillColor(rTextCandidate.getTextFillColor()); + if (aFillColor != COL_TRANSPARENT) + { + aFont.SetFillColor(aFillColor); + aFont.SetTransparent(false); + } + + // handle additional font attributes + const primitive2d::TextDecoratedPortionPrimitive2D* pTCPP = nullptr; + if (rTextCandidate.getPrimitive2DID() == PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D) + pTCPP = static_cast<const primitive2d::TextDecoratedPortionPrimitive2D*>( + &rTextCandidate); + + if (pTCPP != nullptr) + { + // set the color of text decorations + const basegfx::BColor aTextlineColor + = maBColorModifierStack.getModifiedColor(pTCPP->getTextlineColor()); + mpOutputDevice->SetTextLineColor(Color(aTextlineColor)); + + // set Overline attribute + const FontLineStyle eFontOverline( + primitive2d::mapTextLineToFontLineStyle(pTCPP->getFontOverline())); + if (eFontOverline != LINESTYLE_NONE) + { + aFont.SetOverline(eFontOverline); + const basegfx::BColor aOverlineColor + = maBColorModifierStack.getModifiedColor(pTCPP->getOverlineColor()); + mpOutputDevice->SetOverlineColor(Color(aOverlineColor)); + if (pTCPP->getWordLineMode()) + aFont.SetWordLineMode(true); + } + + // set Underline attribute + const FontLineStyle eFontLineStyle( + primitive2d::mapTextLineToFontLineStyle(pTCPP->getFontUnderline())); + if (eFontLineStyle != LINESTYLE_NONE) + { + aFont.SetUnderline(eFontLineStyle); + if (pTCPP->getWordLineMode()) + aFont.SetWordLineMode(true); + } + + // set Strikeout attribute + const FontStrikeout eFontStrikeout( + primitive2d::mapTextStrikeoutToFontStrikeout(pTCPP->getTextStrikeout())); + + if (eFontStrikeout != STRIKEOUT_NONE) + aFont.SetStrikeout(eFontStrikeout); + + // set EmphasisMark attribute + FontEmphasisMark eFontEmphasisMark = FontEmphasisMark::NONE; + switch (pTCPP->getTextEmphasisMark()) + { + default: + SAL_WARN("drawinglayer", + "Unknown EmphasisMark style " << pTCPP->getTextEmphasisMark()); + [[fallthrough]]; + case primitive2d::TEXT_FONT_EMPHASIS_MARK_NONE: + eFontEmphasisMark = FontEmphasisMark::NONE; + break; + case primitive2d::TEXT_FONT_EMPHASIS_MARK_DOT: + eFontEmphasisMark = FontEmphasisMark::Dot; + break; + case primitive2d::TEXT_FONT_EMPHASIS_MARK_CIRCLE: + eFontEmphasisMark = FontEmphasisMark::Circle; + break; + case primitive2d::TEXT_FONT_EMPHASIS_MARK_DISC: + eFontEmphasisMark = FontEmphasisMark::Disc; + break; + case primitive2d::TEXT_FONT_EMPHASIS_MARK_ACCENT: + eFontEmphasisMark = FontEmphasisMark::Accent; + break; + } + + if (eFontEmphasisMark != FontEmphasisMark::NONE) + { + DBG_ASSERT((pTCPP->getEmphasisMarkAbove() != pTCPP->getEmphasisMarkBelow()), + "DrawingLayer: Bad EmphasisMark position!"); + if (pTCPP->getEmphasisMarkAbove()) + eFontEmphasisMark |= FontEmphasisMark::PosAbove; + else + eFontEmphasisMark |= FontEmphasisMark::PosBelow; + aFont.SetEmphasisMark(eFontEmphasisMark); + } + + // set Relief attribute + FontRelief eFontRelief = FontRelief::NONE; + switch (pTCPP->getTextRelief()) + { + default: + SAL_WARN("drawinglayer", "Unknown Relief style " << pTCPP->getTextRelief()); + [[fallthrough]]; + case primitive2d::TEXT_RELIEF_NONE: + eFontRelief = FontRelief::NONE; + break; + case primitive2d::TEXT_RELIEF_EMBOSSED: + eFontRelief = FontRelief::Embossed; + break; + case primitive2d::TEXT_RELIEF_ENGRAVED: + eFontRelief = FontRelief::Engraved; + break; + } + + if (eFontRelief != FontRelief::NONE) + aFont.SetRelief(eFontRelief); + + // set Shadow attribute + if (pTCPP->getShadow()) + aFont.SetShadow(true); + } + + // create transformed integer DXArray in view coordinate system + std::vector<sal_Int32> aTransformedDXArray; + + if (!rTextCandidate.getDXArray().empty()) + { + aTransformedDXArray.reserve(rTextCandidate.getDXArray().size()); + const basegfx::B2DVector aPixelVector(maCurrentTransformation + * basegfx::B2DVector(1.0, 0.0)); + const double fPixelVectorFactor(aPixelVector.getLength()); + + for (auto const& elem : rTextCandidate.getDXArray()) + { + aTransformedDXArray.push_back(basegfx::fround(elem * fPixelVectorFactor)); + } + } + + // set parameters and paint text snippet + const basegfx::BColor aRGBFontColor( + maBColorModifierStack.getModifiedColor(rTextCandidate.getFontColor())); + const basegfx::B2DPoint aPoint(aLocalTransform * basegfx::B2DPoint(0.0, 0.0)); + const Point aStartPoint(basegfx::fround(aPoint.getX()), basegfx::fround(aPoint.getY())); + const vcl::text::ComplexTextLayoutFlags nOldLayoutMode(mpOutputDevice->GetLayoutMode()); + + if (rTextCandidate.getFontAttribute().getRTL()) + { + vcl::text::ComplexTextLayoutFlags nRTLLayoutMode( + nOldLayoutMode & ~vcl::text::ComplexTextLayoutFlags::BiDiStrong); + nRTLLayoutMode |= vcl::text::ComplexTextLayoutFlags::BiDiRtl + | vcl::text::ComplexTextLayoutFlags::TextOriginLeft; + mpOutputDevice->SetLayoutMode(nRTLLayoutMode); + } + + mpOutputDevice->SetFont(aFont); + mpOutputDevice->SetTextColor(Color(aRGBFontColor)); + + OUString aText(rTextCandidate.getText()); + sal_Int32 nPos = rTextCandidate.getTextPosition(); + sal_Int32 nLen = rTextCandidate.getTextLength(); + + if (rTextCandidate.isFilled()) + { + basegfx::B2DVector aOldFontScaling, aOldTranslate; + double fOldRotate, fOldShearX; + rTextCandidate.getTextTransform().decompose(aOldFontScaling, aOldTranslate, + fOldRotate, fOldShearX); + + tools::Long nWidthToFill = static_cast<tools::Long>( + rTextCandidate.getWidthToFill() * aFontScaling.getX() / aOldFontScaling.getX()); + + tools::Long nWidth = mpOutputDevice->GetTextArray(rTextCandidate.getText(), + &aTransformedDXArray, 0, 1); + sal_Int32 nChars = 2; + if (nWidth) + nChars = nWidthToFill / nWidth; + + OUStringBuffer aFilled(nChars); + comphelper::string::padToLength(aFilled, nChars, aText[0]); + aText = aFilled.makeStringAndClear(); + nPos = 0; + nLen = nChars; + + if (!aTransformedDXArray.empty()) + { + sal_Int32 nDX = aTransformedDXArray[0]; + aTransformedDXArray.resize(nLen); + for (sal_Int32 i = 1; i < nLen; ++i) + aTransformedDXArray[i] = aTransformedDXArray[i - 1] + nDX; + } + } + + if (!aTransformedDXArray.empty()) + { + mpOutputDevice->DrawTextArray(aStartPoint, aText, aTransformedDXArray, nPos, nLen); + } + else + { + mpOutputDevice->DrawText(aStartPoint, aText, nPos, nLen); + } + + if (rTextCandidate.getFontAttribute().getRTL()) + { + mpOutputDevice->SetLayoutMode(nOldLayoutMode); + } + + bPrimitiveAccepted = true; + } + } + + if (!bPrimitiveAccepted) + { + // let break down + process(rTextCandidate); + } +} + +// direct draw of hairline +void VclProcessor2D::RenderPolygonHairlinePrimitive2D( + const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate, bool bPixelBased) +{ + const basegfx::BColor aHairlineColor( + maBColorModifierStack.getModifiedColor(rPolygonCandidate.getBColor())); + mpOutputDevice->SetLineColor(Color(aHairlineColor)); + mpOutputDevice->SetFillColor(); + + basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon()); + aLocalPolygon.transform(maCurrentTransformation); + + if (bPixelBased && SvtOptionsDrawinglayer::IsAntiAliasing() + && SvtOptionsDrawinglayer::IsSnapHorVerLinesToDiscrete()) + { + // #i98289# + // when a Hairline is painted and AntiAliasing is on the option SnapHorVerLinesToDiscrete + // allows to suppress AntiAliasing for pure horizontal or vertical lines. This is done since + // not-AntiAliased such lines look more pleasing to the eye (e.g. 2D chart content). This + // NEEDS to be done in discrete coordinates, so only useful for pixel based rendering. + aLocalPolygon = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aLocalPolygon); + } + + mpOutputDevice->DrawPolyLine(aLocalPolygon, 0.0); +} + +// direct draw of transformed BitmapEx primitive +void VclProcessor2D::RenderBitmapPrimitive2D(const primitive2d::BitmapPrimitive2D& rBitmapCandidate) +{ + BitmapEx aBitmapEx(VCLUnoHelper::GetBitmap(rBitmapCandidate.getXBitmap())); + const basegfx::B2DHomMatrix aLocalTransform(maCurrentTransformation + * rBitmapCandidate.getTransform()); + + if (maBColorModifierStack.count()) + { + aBitmapEx = aBitmapEx.ModifyBitmapEx(maBColorModifierStack); + + if (aBitmapEx.IsEmpty()) + { + // color gets completely replaced, get it + const basegfx::BColor aModifiedColor( + maBColorModifierStack.getModifiedColor(basegfx::BColor())); + basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon()); + aPolygon.transform(aLocalTransform); + + mpOutputDevice->SetFillColor(Color(aModifiedColor)); + mpOutputDevice->SetLineColor(); + mpOutputDevice->DrawPolygon(aPolygon); + + return; + } + } + + // #122923# do no longer add Alpha channel here; the right place to do this is when really + // the own transformer is used (see OutputDevice::DrawTransformedBitmapEx). + + // draw using OutputDevice'sDrawTransformedBitmapEx + mpOutputDevice->DrawTransformedBitmapEx(aLocalTransform, aBitmapEx); +} + +void VclProcessor2D::RenderFillGraphicPrimitive2D( + const primitive2d::FillGraphicPrimitive2D& rFillBitmapCandidate) +{ + const attribute::FillGraphicAttribute& rFillGraphicAttribute( + rFillBitmapCandidate.getFillGraphic()); + bool bPrimitiveAccepted(false); + + // #121194# when tiling is used and content is bitmap-based, do direct tiling in the + // renderer on pixel base to ensure tight fitting. Do not do this when + // the fill is rotated or sheared. + if (rFillGraphicAttribute.getTiling()) + { + // content is bitmap(ex) + // + // for Vector Graphic Data (SVG, EMF+) support, force decomposition when present. This will lead to use + // the primitive representation of the vector data directly. + // + // when graphic is animated, force decomposition to use the correct graphic, else + // fill style will not be animated + if (GraphicType::Bitmap == rFillGraphicAttribute.getGraphic().GetType() + && !rFillGraphicAttribute.getGraphic().getVectorGraphicData() + && !rFillGraphicAttribute.getGraphic().IsAnimated()) + { + // decompose matrix to check for shear, rotate and mirroring + basegfx::B2DHomMatrix aLocalTransform(maCurrentTransformation + * rFillBitmapCandidate.getTransformation()); + basegfx::B2DVector aScale, aTranslate; + double fRotate, fShearX; + aLocalTransform.decompose(aScale, aTranslate, fRotate, fShearX); + + // when nopt rotated/sheared + if (basegfx::fTools::equalZero(fRotate) && basegfx::fTools::equalZero(fShearX)) + { + // no shear or rotate, draw direct in pixel coordinates + bPrimitiveAccepted = true; + + // transform object range to device coordinates (pixels). Use + // the device transformation for better accuracy + basegfx::B2DRange aObjectRange(aTranslate, aTranslate + aScale); + aObjectRange.transform(mpOutputDevice->GetViewTransformation()); + + // extract discrete size of object + const sal_Int32 nOWidth(basegfx::fround(aObjectRange.getWidth())); + const sal_Int32 nOHeight(basegfx::fround(aObjectRange.getHeight())); + + // only do something when object has a size in discrete units + if (nOWidth > 0 && nOHeight > 0) + { + // transform graphic range to device coordinates (pixels). Use + // the device transformation for better accuracy + basegfx::B2DRange aGraphicRange(rFillGraphicAttribute.getGraphicRange()); + aGraphicRange.transform(mpOutputDevice->GetViewTransformation() + * aLocalTransform); + + // extract discrete size of graphic + // caution: when getting to zero, nothing would be painted; thus, do not allow this + const sal_Int32 nBWidth( + std::max(sal_Int32(1), basegfx::fround(aGraphicRange.getWidth()))); + const sal_Int32 nBHeight( + std::max(sal_Int32(1), basegfx::fround(aGraphicRange.getHeight()))); + + // only do something when bitmap fill has a size in discrete units + if (nBWidth > 0 && nBHeight > 0) + { + // nBWidth, nBHeight is the pixel size of the needed bitmap. To not need to scale it + // in vcl many times, create a size-optimized version + const Size aNeededBitmapSizePixel(nBWidth, nBHeight); + BitmapEx aBitmapEx(rFillGraphicAttribute.getGraphic().GetBitmapEx()); + const bool bPreScaled(nBWidth * nBHeight < (250 * 250)); + + // ... but only up to a maximum size, else it gets too expensive + if (bPreScaled) + { + // if color depth is below 24bit, expand before scaling for better quality. + // This is even needed for low colors, else the scale will produce + // a bitmap in gray or Black/White (!) + if (isPalettePixelFormat(aBitmapEx.getPixelFormat())) + { + aBitmapEx.Convert(BmpConversion::N24Bit); + } + + aBitmapEx.Scale(aNeededBitmapSizePixel, BmpScaleFlag::Interpolate); + } + + bool bPainted(false); + + if (maBColorModifierStack.count()) + { + // when color modifier, apply to bitmap + aBitmapEx = aBitmapEx.ModifyBitmapEx(maBColorModifierStack); + + // impModifyBitmapEx uses empty bitmap as sign to return that + // the content will be completely replaced to mono color, use shortcut + if (aBitmapEx.IsEmpty()) + { + // color gets completely replaced, get it + const basegfx::BColor aModifiedColor( + maBColorModifierStack.getModifiedColor(basegfx::BColor())); + basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon()); + aPolygon.transform(aLocalTransform); + + mpOutputDevice->SetFillColor(Color(aModifiedColor)); + mpOutputDevice->SetLineColor(); + mpOutputDevice->DrawPolygon(aPolygon); + + bPainted = true; + } + } + + if (!bPainted) + { + sal_Int32 nBLeft(basegfx::fround(aGraphicRange.getMinX())); + sal_Int32 nBTop(basegfx::fround(aGraphicRange.getMinY())); + const sal_Int32 nOLeft(basegfx::fround(aObjectRange.getMinX())); + const sal_Int32 nOTop(basegfx::fround(aObjectRange.getMinY())); + sal_Int32 nPosX(0); + sal_Int32 nPosY(0); + + if (nBLeft > nOLeft) + { + const sal_Int32 nDiff((nBLeft / nBWidth) + 1); + + nPosX -= nDiff; + nBLeft -= nDiff * nBWidth; + } + + if (nBLeft + nBWidth <= nOLeft) + { + const sal_Int32 nDiff(-nBLeft / nBWidth); + + nPosX += nDiff; + nBLeft += nDiff * nBWidth; + } + + if (nBTop > nOTop) + { + const sal_Int32 nDiff((nBTop / nBHeight) + 1); + + nPosY -= nDiff; + nBTop -= nDiff * nBHeight; + } + + if (nBTop + nBHeight <= nOTop) + { + const sal_Int32 nDiff(-nBTop / nBHeight); + + nPosY += nDiff; + nBTop += nDiff * nBHeight; + } + + // prepare OutDev + const Point aEmptyPoint(0, 0); + const ::tools::Rectangle aVisiblePixel( + aEmptyPoint, mpOutputDevice->GetOutputSizePixel()); + const bool bWasEnabled(mpOutputDevice->IsMapModeEnabled()); + mpOutputDevice->EnableMapMode(false); + + // check if offset is used + const sal_Int32 nOffsetX( + basegfx::fround(rFillGraphicAttribute.getOffsetX() * nBWidth)); + + if (nOffsetX) + { + // offset in X, so iterate over Y first and draw lines + for (sal_Int32 nYPos(nBTop); nYPos < nOTop + nOHeight; + nYPos += nBHeight, nPosY++) + { + for (sal_Int32 nXPos((nPosY % 2) ? nBLeft - nBWidth + nOffsetX + : nBLeft); + nXPos < nOLeft + nOWidth; nXPos += nBWidth) + { + const ::tools::Rectangle aOutRectPixel( + Point(nXPos, nYPos), aNeededBitmapSizePixel); + + if (aOutRectPixel.Overlaps(aVisiblePixel)) + { + if (bPreScaled) + { + mpOutputDevice->DrawBitmapEx( + aOutRectPixel.TopLeft(), aBitmapEx); + } + else + { + mpOutputDevice->DrawBitmapEx( + aOutRectPixel.TopLeft(), aNeededBitmapSizePixel, + aBitmapEx); + } + } + } + } + } + else + { + // check if offset is used + const sal_Int32 nOffsetY( + basegfx::fround(rFillGraphicAttribute.getOffsetY() * nBHeight)); + + // possible offset in Y, so iterate over X first and draw columns + for (sal_Int32 nXPos(nBLeft); nXPos < nOLeft + nOWidth; + nXPos += nBWidth, nPosX++) + { + for (sal_Int32 nYPos((nPosX % 2) ? nBTop - nBHeight + nOffsetY + : nBTop); + nYPos < nOTop + nOHeight; nYPos += nBHeight) + { + const ::tools::Rectangle aOutRectPixel( + Point(nXPos, nYPos), aNeededBitmapSizePixel); + + if (aOutRectPixel.Overlaps(aVisiblePixel)) + { + if (bPreScaled) + { + mpOutputDevice->DrawBitmapEx( + aOutRectPixel.TopLeft(), aBitmapEx); + } + else + { + mpOutputDevice->DrawBitmapEx( + aOutRectPixel.TopLeft(), aNeededBitmapSizePixel, + aBitmapEx); + } + } + } + } + } + + // restore OutDev + mpOutputDevice->EnableMapMode(bWasEnabled); + } + } + } + } + } + } + + if (!bPrimitiveAccepted) + { + // do not accept, use decomposition + process(rFillBitmapCandidate); + } +} + +// direct draw of Graphic +void VclProcessor2D::RenderPolyPolygonGraphicPrimitive2D( + const primitive2d::PolyPolygonGraphicPrimitive2D& rPolygonCandidate) +{ + bool bDone(false); + const basegfx::B2DPolyPolygon& rPolyPolygon = rPolygonCandidate.getB2DPolyPolygon(); + + // #121194# Todo: check if this works + if (!rPolyPolygon.count()) + { + // empty polyPolygon, done + bDone = true; + } + else + { + const attribute::FillGraphicAttribute& rFillGraphicAttribute + = rPolygonCandidate.getFillGraphic(); + + // try to catch cases where the graphic will be color-modified to a single + // color (e.g. shadow) + switch (rFillGraphicAttribute.getGraphic().GetType()) + { + case GraphicType::GdiMetafile: + { + // metafiles are potentially transparent, cannot optimize, not done + break; + } + case GraphicType::Bitmap: + { + if (!rFillGraphicAttribute.getGraphic().IsTransparent() + && !rFillGraphicAttribute.getGraphic().IsAlpha()) + { + // bitmap is not transparent and has no alpha + const sal_uInt32 nBColorModifierStackCount(maBColorModifierStack.count()); + + if (nBColorModifierStackCount) + { + const basegfx::BColorModifierSharedPtr& rTopmostModifier + = maBColorModifierStack.getBColorModifier(nBColorModifierStackCount + - 1); + const basegfx::BColorModifier_replace* pReplacer + = dynamic_cast<const basegfx::BColorModifier_replace*>( + rTopmostModifier.get()); + + if (pReplacer) + { + // the bitmap fill is in unified color, so we can replace it with + // a single polygon fill. The form of the fill depends on tiling + if (rFillGraphicAttribute.getTiling()) + { + // with tiling, fill the whole tools::PolyPolygon with the modifier color + basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolyPolygon); + + aLocalPolyPolygon.transform(maCurrentTransformation); + mpOutputDevice->SetLineColor(); + mpOutputDevice->SetFillColor(Color(pReplacer->getBColor())); + mpOutputDevice->DrawPolyPolygon(aLocalPolyPolygon); + } + else + { + // without tiling, only the area common to the bitmap tile and the + // tools::PolyPolygon is filled. Create the bitmap tile area in object + // coordinates. For this, the object transformation needs to be created + // from the already scaled PolyPolygon. The tile area in object + // coordinates will always be non-rotated, so it's not necessary to + // work with a polygon here + basegfx::B2DRange aTileRange( + rFillGraphicAttribute.getGraphicRange()); + const basegfx::B2DRange aPolyPolygonRange( + rPolyPolygon.getB2DRange()); + const basegfx::B2DHomMatrix aNewObjectTransform( + basegfx::utils::createScaleTranslateB2DHomMatrix( + aPolyPolygonRange.getRange(), + aPolyPolygonRange.getMinimum())); + + aTileRange.transform(aNewObjectTransform); + + // now clip the object polyPolygon against the tile range + // to get the common area + basegfx::B2DPolyPolygon aTarget + = basegfx::utils::clipPolyPolygonOnRange( + rPolyPolygon, aTileRange, true, false); + + if (aTarget.count()) + { + aTarget.transform(maCurrentTransformation); + mpOutputDevice->SetLineColor(); + mpOutputDevice->SetFillColor(Color(pReplacer->getBColor())); + mpOutputDevice->DrawPolyPolygon(aTarget); + } + } + + // simplified output executed, we are done + bDone = true; + } + } + } + break; + } + default: //GraphicType::NONE, GraphicType::Default + { + // empty graphic, we are done + bDone = true; + break; + } + } + } + + if (!bDone) + { + // use default decomposition + process(rPolygonCandidate); + } +} + +// mask group +void VclProcessor2D::RenderMaskPrimitive2DPixel(const primitive2d::MaskPrimitive2D& rMaskCandidate) +{ + if (rMaskCandidate.getChildren().empty()) + return; + + basegfx::B2DPolyPolygon aMask(rMaskCandidate.getMask()); + + if (!aMask.count()) + return; + + aMask.transform(maCurrentTransformation); + + // Unless smooth edges are needed, simply use clipping. + if (basegfx::utils::isRectangle(aMask) || !SvtOptionsDrawinglayer::IsAntiAliasing()) + { + mpOutputDevice->Push(vcl::PushFlags::CLIPREGION); + mpOutputDevice->IntersectClipRegion(vcl::Region(aMask)); + process(rMaskCandidate.getChildren()); + mpOutputDevice->Pop(); + return; + } + + const basegfx::B2DRange aRange(basegfx::utils::getRange(aMask)); + impBufferDevice aBufferDevice(*mpOutputDevice, aRange); + + if (!aBufferDevice.isVisible()) + return; + + // remember last OutDev and set to content + OutputDevice* pLastOutputDevice = mpOutputDevice; + mpOutputDevice = &aBufferDevice.getContent(); + + // paint to it + process(rMaskCandidate.getChildren()); + + // back to old OutDev + mpOutputDevice = pLastOutputDevice; + + // draw mask + VirtualDevice& rMask = aBufferDevice.getTransparence(); + rMask.SetLineColor(); + rMask.SetFillColor(COL_BLACK); + rMask.DrawPolyPolygon(aMask); + + // dump buffer to outdev + aBufferDevice.paint(); +} + +// modified color group. Force output to unified color. +void VclProcessor2D::RenderModifiedColorPrimitive2D( + const primitive2d::ModifiedColorPrimitive2D& rModifiedCandidate) +{ + if (!rModifiedCandidate.getChildren().empty()) + { + maBColorModifierStack.push(rModifiedCandidate.getColorModifier()); + process(rModifiedCandidate.getChildren()); + maBColorModifierStack.pop(); + } +} + +// unified sub-transparence. Draw to VDev first. +void VclProcessor2D::RenderUnifiedTransparencePrimitive2D( + const primitive2d::UnifiedTransparencePrimitive2D& rTransCandidate) +{ + if (rTransCandidate.getChildren().empty()) + return; + + if (0.0 == rTransCandidate.getTransparence()) + { + // no transparence used, so just use the content + process(rTransCandidate.getChildren()); + } + else if (rTransCandidate.getTransparence() > 0.0 && rTransCandidate.getTransparence() < 1.0) + { + // transparence is in visible range + basegfx::B2DRange aRange(rTransCandidate.getChildren().getB2DRange(getViewInformation2D())); + aRange.transform(maCurrentTransformation); + impBufferDevice aBufferDevice(*mpOutputDevice, aRange); + + if (aBufferDevice.isVisible()) + { + // remember last OutDev and set to content + OutputDevice* pLastOutputDevice = mpOutputDevice; + mpOutputDevice = &aBufferDevice.getContent(); + + // paint content to it + process(rTransCandidate.getChildren()); + + // back to old OutDev + mpOutputDevice = pLastOutputDevice; + + // dump buffer to outdev using given transparence + aBufferDevice.paint(rTransCandidate.getTransparence()); + } + } +} + +// sub-transparence group. Draw to VDev first. +void VclProcessor2D::RenderTransparencePrimitive2D( + const primitive2d::TransparencePrimitive2D& rTransCandidate) +{ + if (rTransCandidate.getChildren().empty()) + return; + + basegfx::B2DRange aRange(rTransCandidate.getChildren().getB2DRange(getViewInformation2D())); + aRange.transform(maCurrentTransformation); + impBufferDevice aBufferDevice(*mpOutputDevice, aRange); + + if (!aBufferDevice.isVisible()) + return; + + // remember last OutDev and set to content + OutputDevice* pLastOutputDevice = mpOutputDevice; + mpOutputDevice = &aBufferDevice.getContent(); + + // paint content to it + process(rTransCandidate.getChildren()); + + // set to mask + mpOutputDevice = &aBufferDevice.getTransparence(); + + // when painting transparence masks, reset the color stack + basegfx::BColorModifierStack aLastBColorModifierStack(maBColorModifierStack); + maBColorModifierStack = basegfx::BColorModifierStack(); + + // paint mask to it (always with transparence intensities, evtl. with AA) + process(rTransCandidate.getTransparence()); + + // back to old color stack + maBColorModifierStack = aLastBColorModifierStack; + + // back to old OutDev + mpOutputDevice = pLastOutputDevice; + + // dump buffer to outdev + aBufferDevice.paint(); +} + +// transform group. +void VclProcessor2D::RenderTransformPrimitive2D( + const primitive2d::TransformPrimitive2D& rTransformCandidate) +{ + // remember current transformation and ViewInformation + const basegfx::B2DHomMatrix aLastCurrentTransformation(maCurrentTransformation); + const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D()); + + // create new transformations for CurrentTransformation + // and for local ViewInformation2D + maCurrentTransformation = maCurrentTransformation * rTransformCandidate.getTransformation(); + const geometry::ViewInformation2D aViewInformation2D( + getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(), + getViewInformation2D().getViewTransformation(), getViewInformation2D().getViewport(), + getViewInformation2D().getVisualizedPage(), getViewInformation2D().getViewTime()); + updateViewInformation(aViewInformation2D); + + // process content + process(rTransformCandidate.getChildren()); + + // restore transformations + maCurrentTransformation = aLastCurrentTransformation; + updateViewInformation(aLastViewInformation2D); +} + +// new XDrawPage for ViewInformation2D +void VclProcessor2D::RenderPagePreviewPrimitive2D( + const primitive2d::PagePreviewPrimitive2D& rPagePreviewCandidate) +{ + // remember current transformation and ViewInformation + const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D()); + + // create new local ViewInformation2D + const geometry::ViewInformation2D aViewInformation2D( + getViewInformation2D().getObjectTransformation(), + getViewInformation2D().getViewTransformation(), getViewInformation2D().getViewport(), + rPagePreviewCandidate.getXDrawPage(), getViewInformation2D().getViewTime()); + updateViewInformation(aViewInformation2D); + + // process decomposed content + process(rPagePreviewCandidate); + + // restore transformations + updateViewInformation(aLastViewInformation2D); +} + +// marker +void VclProcessor2D::RenderMarkerArrayPrimitive2D( + const primitive2d::MarkerArrayPrimitive2D& rMarkArrayCandidate) +{ + // get data + const std::vector<basegfx::B2DPoint>& rPositions = rMarkArrayCandidate.getPositions(); + const sal_uInt32 nCount(rPositions.size()); + + if (!nCount || rMarkArrayCandidate.getMarker().IsEmpty()) + return; + + // get pixel size + const BitmapEx& rMarker(rMarkArrayCandidate.getMarker()); + const Size aBitmapSize(rMarker.GetSizePixel()); + + if (!(aBitmapSize.Width() && aBitmapSize.Height())) + return; + + // get discrete half size + const basegfx::B2DVector aDiscreteHalfSize((aBitmapSize.getWidth() - 1.0) * 0.5, + (aBitmapSize.getHeight() - 1.0) * 0.5); + const bool bWasEnabled(mpOutputDevice->IsMapModeEnabled()); + + // do not forget evtl. moved origin in target device MapMode when + // switching it off; it would be missing and lead to wrong positions. + // All his could be done using logic sizes and coordinates, too, but + // we want a 1:1 bitmap rendering here, so it's more safe and faster + // to work with switching off MapMode usage completely. + const Point aOrigin(mpOutputDevice->GetMapMode().GetOrigin()); + + mpOutputDevice->EnableMapMode(false); + + for (auto const& pos : rPositions) + { + const basegfx::B2DPoint aDiscreteTopLeft((maCurrentTransformation * pos) + - aDiscreteHalfSize); + const Point aDiscretePoint(basegfx::fround(aDiscreteTopLeft.getX()), + basegfx::fround(aDiscreteTopLeft.getY())); + + mpOutputDevice->DrawBitmapEx(aDiscretePoint + aOrigin, rMarker); + } + + mpOutputDevice->EnableMapMode(bWasEnabled); +} + +// point +void VclProcessor2D::RenderPointArrayPrimitive2D( + const primitive2d::PointArrayPrimitive2D& rPointArrayCandidate) +{ + const std::vector<basegfx::B2DPoint>& rPositions = rPointArrayCandidate.getPositions(); + const basegfx::BColor aRGBColor( + maBColorModifierStack.getModifiedColor(rPointArrayCandidate.getRGBColor())); + const Color aVCLColor(aRGBColor); + + for (auto const& pos : rPositions) + { + const basegfx::B2DPoint aViewPosition(maCurrentTransformation * pos); + const Point aPos(basegfx::fround(aViewPosition.getX()), + basegfx::fround(aViewPosition.getY())); + + mpOutputDevice->DrawPixel(aPos, aVCLColor); + } +} + +void VclProcessor2D::RenderPolygonStrokePrimitive2D( + const primitive2d::PolygonStrokePrimitive2D& rPolygonStrokeCandidate) +{ + // #i101491# method restructured to clearly use the DrawPolyLine + // calls starting from a defined line width + const attribute::LineAttribute& rLineAttribute = rPolygonStrokeCandidate.getLineAttribute(); + const double fLineWidth(rLineAttribute.getWidth()); + bool bDone(false); + + if (basegfx::fTools::more(fLineWidth, 0.0)) + { + const basegfx::B2DVector aDiscreteUnit(maCurrentTransformation + * basegfx::B2DVector(fLineWidth, 0.0)); + const double fDiscreteLineWidth(aDiscreteUnit.getLength()); + const attribute::StrokeAttribute& rStrokeAttribute + = rPolygonStrokeCandidate.getStrokeAttribute(); + const basegfx::BColor aHairlineColor( + maBColorModifierStack.getModifiedColor(rLineAttribute.getColor())); + basegfx::B2DPolyPolygon aHairlinePolyPolygon; + + mpOutputDevice->SetLineColor(Color(aHairlineColor)); + mpOutputDevice->SetFillColor(); + + if (0.0 == rStrokeAttribute.getFullDotDashLen()) + { + // no line dashing, just copy + aHairlinePolyPolygon.append(rPolygonStrokeCandidate.getB2DPolygon()); + } + else + { + // else apply LineStyle + basegfx::utils::applyLineDashing( + rPolygonStrokeCandidate.getB2DPolygon(), rStrokeAttribute.getDotDashArray(), + &aHairlinePolyPolygon, nullptr, rStrokeAttribute.getFullDotDashLen()); + } + + const sal_uInt32 nCount(aHairlinePolyPolygon.count()); + + if (nCount) + { + const bool bAntiAliased(SvtOptionsDrawinglayer::IsAntiAliasing()); + aHairlinePolyPolygon.transform(maCurrentTransformation); + + if (bAntiAliased) + { + if (basegfx::fTools::lessOrEqual(fDiscreteLineWidth, 1.0)) + { + // line in range ]0.0 .. 1.0[ + // paint as simple hairline + for (sal_uInt32 a(0); a < nCount; a++) + { + mpOutputDevice->DrawPolyLine(aHairlinePolyPolygon.getB2DPolygon(a), 0.0); + } + + bDone = true; + } + else if (basegfx::fTools::lessOrEqual(fDiscreteLineWidth, 2.0)) + { + // line in range [1.0 .. 2.0[ + // paint as 2x2 with dynamic line distance + basegfx::B2DHomMatrix aMat; + const double fDistance(fDiscreteLineWidth - 1.0); + const double fHalfDistance(fDistance * 0.5); + + for (sal_uInt32 a(0); a < nCount; a++) + { + basegfx::B2DPolygon aCandidate(aHairlinePolyPolygon.getB2DPolygon(a)); + + aMat.set(0, 2, -fHalfDistance); + aMat.set(1, 2, -fHalfDistance); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, fDistance); + aMat.set(1, 2, 0.0); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, 0.0); + aMat.set(1, 2, fDistance); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, -fDistance); + aMat.set(1, 2, 0.0); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + } + + bDone = true; + } + else if (basegfx::fTools::lessOrEqual(fDiscreteLineWidth, 3.0)) + { + // line in range [2.0 .. 3.0] + // paint as cross in a 3x3 with dynamic line distance + basegfx::B2DHomMatrix aMat; + const double fDistance((fDiscreteLineWidth - 1.0) * 0.5); + + for (sal_uInt32 a(0); a < nCount; a++) + { + basegfx::B2DPolygon aCandidate(aHairlinePolyPolygon.getB2DPolygon(a)); + + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, -fDistance); + aMat.set(1, 2, 0.0); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, fDistance); + aMat.set(1, 2, -fDistance); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, fDistance); + aMat.set(1, 2, fDistance); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, -fDistance); + aMat.set(1, 2, fDistance); + aCandidate.transform(aMat); + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + } + + bDone = true; + } + else + { + // #i101491# line width above 3.0 + } + } + else + { + if (basegfx::fTools::lessOrEqual(fDiscreteLineWidth, 1.5)) + { + // line width below 1.5, draw the basic hairline polygon + for (sal_uInt32 a(0); a < nCount; a++) + { + mpOutputDevice->DrawPolyLine(aHairlinePolyPolygon.getB2DPolygon(a), 0.0); + } + + bDone = true; + } + else if (basegfx::fTools::lessOrEqual(fDiscreteLineWidth, 2.5)) + { + // line width is in range ]1.5 .. 2.5], use four hairlines + // drawn in a square + for (sal_uInt32 a(0); a < nCount; a++) + { + basegfx::B2DPolygon aCandidate(aHairlinePolyPolygon.getB2DPolygon(a)); + basegfx::B2DHomMatrix aMat; + + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, 1.0); + aMat.set(1, 2, 0.0); + aCandidate.transform(aMat); + + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, 0.0); + aMat.set(1, 2, 1.0); + aCandidate.transform(aMat); + + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + + aMat.set(0, 2, -1.0); + aMat.set(1, 2, 0.0); + aCandidate.transform(aMat); + + mpOutputDevice->DrawPolyLine(aCandidate, 0.0); + } + + bDone = true; + } + else + { + // #i101491# line width is above 2.5 + } + } + + if (!bDone && rPolygonStrokeCandidate.getB2DPolygon().count() > 1000) + { + // #i101491# If the polygon complexity uses more than a given amount, do + // use OutputDevice::DrawPolyLine directly; this will avoid buffering all + // decompositions in primitives (memory) and fallback to old line painting + // for very complex polygons, too + for (sal_uInt32 a(0); a < nCount; a++) + { + mpOutputDevice->DrawPolyLine(aHairlinePolyPolygon.getB2DPolygon(a), + fDiscreteLineWidth, rLineAttribute.getLineJoin(), + rLineAttribute.getLineCap(), + rLineAttribute.getMiterMinimumAngle()); + } + + bDone = true; + } + } + } + + if (!bDone) + { + // remember that we enter a PolygonStrokePrimitive2D decomposition, + // used for AA thick line drawing + mnPolygonStrokePrimitive2D++; + + // line width is big enough for standard filled polygon visualisation or zero + process(rPolygonStrokeCandidate); + + // leave PolygonStrokePrimitive2D + mnPolygonStrokePrimitive2D--; + } +} + +void VclProcessor2D::RenderEpsPrimitive2D(const primitive2d::EpsPrimitive2D& rEpsPrimitive2D) +{ + // The new decomposition of Metafiles made it necessary to add an Eps + // primitive to handle embedded Eps data. On some devices, this can be + // painted directly (mac, printer). + // To be able to handle the replacement correctly, i need to handle it myself + // since DrawEPS will not be able e.g. to rotate the replacement. To be able + // to do that, i added a boolean return to OutputDevice::DrawEPS(..) + // to know when EPS was handled directly already. + basegfx::B2DRange aRange(0.0, 0.0, 1.0, 1.0); + aRange.transform(maCurrentTransformation * rEpsPrimitive2D.getEpsTransform()); + + if (aRange.isEmpty()) + return; + + const ::tools::Rectangle aRectangle(static_cast<sal_Int32>(floor(aRange.getMinX())), + static_cast<sal_Int32>(floor(aRange.getMinY())), + static_cast<sal_Int32>(ceil(aRange.getMaxX())), + static_cast<sal_Int32>(ceil(aRange.getMaxY()))); + + if (aRectangle.IsEmpty()) + return; + + bool bWillReallyRender = mpOutputDevice->IsDeviceOutputNecessary(); + // try to paint EPS directly without fallback visualisation + const bool bEPSPaintedDirectly + = bWillReallyRender + && mpOutputDevice->DrawEPS(aRectangle.TopLeft(), aRectangle.GetSize(), + rEpsPrimitive2D.getGfxLink()); + + if (!bEPSPaintedDirectly) + { + // use the decomposition which will correctly handle the + // fallback visualisation using full transformation (e.g. rotation) + process(rEpsPrimitive2D); + } +} + +void VclProcessor2D::RenderSvgLinearAtomPrimitive2D( + const primitive2d::SvgLinearAtomPrimitive2D& rCandidate) +{ + const double fDelta(rCandidate.getOffsetB() - rCandidate.getOffsetA()); + + if (!basegfx::fTools::more(fDelta, 0.0)) + return; + + const basegfx::BColor aColorA(maBColorModifierStack.getModifiedColor(rCandidate.getColorA())); + const basegfx::BColor aColorB(maBColorModifierStack.getModifiedColor(rCandidate.getColorB())); + + // calculate discrete unit in WorldCoordinates; use diagonal (1.0, 1.0) and divide by sqrt(2) + const basegfx::B2DVector aDiscreteVector( + getViewInformation2D().getInverseObjectToViewTransformation() + * basegfx::B2DVector(1.0, 1.0)); + const double fDiscreteUnit(aDiscreteVector.getLength() * (1.0 / M_SQRT2)); + + // use color distance and discrete lengths to calculate step count + const sal_uInt32 nSteps(calculateStepsForSvgGradient(aColorA, aColorB, fDelta, fDiscreteUnit)); + + // switch off line painting + mpOutputDevice->SetLineColor(); + + // prepare polygon in needed width at start position (with discrete overlap) + const basegfx::B2DPolygon aPolygon(basegfx::utils::createPolygonFromRect( + basegfx::B2DRange(rCandidate.getOffsetA() - fDiscreteUnit, 0.0, + rCandidate.getOffsetA() + (fDelta / nSteps) + fDiscreteUnit, 1.0))); + + // prepare loop ([0.0 .. 1.0[) + double fUnitScale(0.0); + const double fUnitStep(1.0 / nSteps); + + // loop and paint + for (sal_uInt32 a(0); a < nSteps; a++, fUnitScale += fUnitStep) + { + basegfx::B2DPolygon aNew(aPolygon); + + aNew.transform(maCurrentTransformation + * basegfx::utils::createTranslateB2DHomMatrix(fDelta * fUnitScale, 0.0)); + mpOutputDevice->SetFillColor(Color(basegfx::interpolate(aColorA, aColorB, fUnitScale))); + mpOutputDevice->DrawPolyPolygon(basegfx::B2DPolyPolygon(aNew)); + } +} + +void VclProcessor2D::RenderSvgRadialAtomPrimitive2D( + const primitive2d::SvgRadialAtomPrimitive2D& rCandidate) +{ + const double fDeltaScale(rCandidate.getScaleB() - rCandidate.getScaleA()); + + if (!basegfx::fTools::more(fDeltaScale, 0.0)) + return; + + const basegfx::BColor aColorA(maBColorModifierStack.getModifiedColor(rCandidate.getColorA())); + const basegfx::BColor aColorB(maBColorModifierStack.getModifiedColor(rCandidate.getColorB())); + + // calculate discrete unit in WorldCoordinates; use diagonal (1.0, 1.0) and divide by sqrt(2) + const basegfx::B2DVector aDiscreteVector( + getViewInformation2D().getInverseObjectToViewTransformation() + * basegfx::B2DVector(1.0, 1.0)); + const double fDiscreteUnit(aDiscreteVector.getLength() * (1.0 / M_SQRT2)); + + // use color distance and discrete lengths to calculate step count + const sal_uInt32 nSteps( + calculateStepsForSvgGradient(aColorA, aColorB, fDeltaScale, fDiscreteUnit)); + + // switch off line painting + mpOutputDevice->SetLineColor(); + + // prepare loop ([0.0 .. 1.0[, full polygons, no polypolygons with holes) + double fUnitScale(0.0); + const double fUnitStep(1.0 / nSteps); + + for (sal_uInt32 a(0); a < nSteps; a++, fUnitScale += fUnitStep) + { + basegfx::B2DHomMatrix aTransform; + const double fEndScale(rCandidate.getScaleB() - (fDeltaScale * fUnitScale)); + + if (rCandidate.isTranslateSet()) + { + const basegfx::B2DVector aTranslate(basegfx::interpolate( + rCandidate.getTranslateB(), rCandidate.getTranslateA(), fUnitScale)); + + aTransform = basegfx::utils::createScaleTranslateB2DHomMatrix( + fEndScale, fEndScale, aTranslate.getX(), aTranslate.getY()); + } + else + { + aTransform = basegfx::utils::createScaleB2DHomMatrix(fEndScale, fEndScale); + } + + basegfx::B2DPolygon aNew(basegfx::utils::createPolygonFromUnitCircle()); + + aNew.transform(maCurrentTransformation * aTransform); + mpOutputDevice->SetFillColor(Color(basegfx::interpolate(aColorB, aColorA, fUnitScale))); + mpOutputDevice->DrawPolyPolygon(basegfx::B2DPolyPolygon(aNew)); + } +} + +void VclProcessor2D::adaptLineToFillDrawMode() const +{ + const DrawModeFlags nOriginalDrawMode(mpOutputDevice->GetDrawMode()); + + if (!(nOriginalDrawMode + & (DrawModeFlags::BlackLine | DrawModeFlags::GrayLine | DrawModeFlags::WhiteLine + | DrawModeFlags::SettingsLine))) + return; + + DrawModeFlags nAdaptedDrawMode(nOriginalDrawMode); + + if (nOriginalDrawMode & DrawModeFlags::BlackLine) + { + nAdaptedDrawMode |= DrawModeFlags::BlackFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::BlackFill; + } + + if (nOriginalDrawMode & DrawModeFlags::GrayLine) + { + nAdaptedDrawMode |= DrawModeFlags::GrayFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::GrayFill; + } + + if (nOriginalDrawMode & DrawModeFlags::WhiteLine) + { + nAdaptedDrawMode |= DrawModeFlags::WhiteFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::WhiteFill; + } + + if (nOriginalDrawMode & DrawModeFlags::SettingsLine) + { + nAdaptedDrawMode |= DrawModeFlags::SettingsFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::SettingsFill; + } + + mpOutputDevice->SetDrawMode(nAdaptedDrawMode); +} + +void VclProcessor2D::adaptTextToFillDrawMode() const +{ + const DrawModeFlags nOriginalDrawMode(mpOutputDevice->GetDrawMode()); + if (!(nOriginalDrawMode + & (DrawModeFlags::BlackText | DrawModeFlags::GrayText | DrawModeFlags::WhiteText + | DrawModeFlags::SettingsText))) + return; + + DrawModeFlags nAdaptedDrawMode(nOriginalDrawMode); + + if (nOriginalDrawMode & DrawModeFlags::BlackText) + { + nAdaptedDrawMode |= DrawModeFlags::BlackFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::BlackFill; + } + + if (nOriginalDrawMode & DrawModeFlags::GrayText) + { + nAdaptedDrawMode |= DrawModeFlags::GrayFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::GrayFill; + } + + if (nOriginalDrawMode & DrawModeFlags::WhiteText) + { + nAdaptedDrawMode |= DrawModeFlags::WhiteFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::WhiteFill; + } + + if (nOriginalDrawMode & DrawModeFlags::SettingsText) + { + nAdaptedDrawMode |= DrawModeFlags::SettingsFill; + } + else + { + nAdaptedDrawMode &= ~DrawModeFlags::SettingsFill; + } + + mpOutputDevice->SetDrawMode(nAdaptedDrawMode); +} + +// process support + +VclProcessor2D::VclProcessor2D(const geometry::ViewInformation2D& rViewInformation, + OutputDevice& rOutDev, + const basegfx::BColorModifierStack& rInitStack) + : BaseProcessor2D(rViewInformation) + , mpOutputDevice(&rOutDev) + , maBColorModifierStack(rInitStack) + , mnPolygonStrokePrimitive2D(0) +{ + // set digit language, derived from SvtCTLOptions to have the correct + // number display for arabic/hindi numerals + rOutDev.SetDigitLanguage(drawinglayer::detail::getDigitLanguage()); +} + +VclProcessor2D::~VclProcessor2D() {} +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |