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| -rw-r--r-- | drawinglayer/source/primitive2d/controlprimitive2d.cxx | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/controlprimitive2d.cxx b/drawinglayer/source/primitive2d/controlprimitive2d.cxx new file mode 100644 index 000000000..461400daf --- /dev/null +++ b/drawinglayer/source/primitive2d/controlprimitive2d.cxx @@ -0,0 +1,348 @@ +/* -*- 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 <drawinglayer/primitive2d/controlprimitive2d.hxx> +#include <com/sun/star/awt/XWindow.hpp> +#include <com/sun/star/beans/XPropertySet.hpp> +#include <comphelper/processfactory.hxx> +#include <com/sun/star/awt/XControl.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> +#include <drawinglayer/geometry/viewinformation2d.hxx> +#include <vcl/virdev.hxx> +#include <vcl/svapp.hxx> +#include <com/sun/star/awt/PosSize.hpp> +#include <vcl/bitmapex.hxx> +#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx> +#include <tools/diagnose_ex.h> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> +#include <svtools/optionsdrawinglayer.hxx> +#include <vcl/window.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <toolkit/helper/vclunohelper.hxx> + +using namespace com::sun::star; + +namespace drawinglayer::primitive2d +{ + void ControlPrimitive2D::createXControl() + { + if(mxXControl.is() || !getControlModel().is()) + return; + + uno::Reference< beans::XPropertySet > xSet(getControlModel(), uno::UNO_QUERY); + + if(!xSet.is()) + return; + + uno::Any aValue(xSet->getPropertyValue("DefaultControl")); + OUString aUnoControlTypeName; + + if(!(aValue >>= aUnoControlTypeName)) + return; + + if(aUnoControlTypeName.isEmpty()) + return; + + uno::Reference< uno::XComponentContext > xContext( ::comphelper::getProcessComponentContext() ); + uno::Reference< awt::XControl > xXControl( + xContext->getServiceManager()->createInstanceWithContext(aUnoControlTypeName, xContext), uno::UNO_QUERY); + + if(xXControl.is()) + { + xXControl->setModel(getControlModel()); + + // remember XControl + mxXControl = xXControl; + } + } + + Primitive2DReference ControlPrimitive2D::createBitmapDecomposition(const geometry::ViewInformation2D& rViewInformation) const + { + Primitive2DReference xRetval; + const uno::Reference< awt::XControl >& rXControl(getXControl()); + + if(rXControl.is()) + { + uno::Reference< awt::XWindow > xControlWindow(rXControl, uno::UNO_QUERY); + + if(xControlWindow.is()) + { + // get decomposition to get size + basegfx::B2DVector aScale, aTranslate; + double fRotate, fShearX; + getTransform().decompose(aScale, aTranslate, fRotate, fShearX); + + // get absolute discrete size (no mirror or rotate here) + aScale = basegfx::absolute(aScale); + basegfx::B2DVector aDiscreteSize(rViewInformation.getObjectToViewTransformation() * aScale); + + // limit to a maximum square size, e.g. 300x150 pixels (45000) + const double fDiscreteMax(SvtOptionsDrawinglayer::GetQuadraticFormControlRenderLimit()); + const double fDiscreteQuadratic(aDiscreteSize.getX() * aDiscreteSize.getY()); + const bool bScaleUsed(fDiscreteQuadratic > fDiscreteMax); + double fFactor(1.0); + + if(bScaleUsed) + { + // get factor and adapt to scaled size + fFactor = sqrt(fDiscreteMax / fDiscreteQuadratic); + aDiscreteSize *= fFactor; + } + + // go to integer + const sal_Int32 nSizeX(basegfx::fround(aDiscreteSize.getX())); + const sal_Int32 nSizeY(basegfx::fround(aDiscreteSize.getY())); + + if(nSizeX > 0 && nSizeY > 0) + { + // prepare VirtualDevice + ScopedVclPtrInstance< VirtualDevice > aVirtualDevice(*Application::GetDefaultDevice()); + const Size aSizePixel(nSizeX, nSizeY); + aVirtualDevice->SetOutputSizePixel(aSizePixel); + + // set size at control + xControlWindow->setPosSize(0, 0, nSizeX, nSizeY, awt::PosSize::POSSIZE); + + // get graphics and view + uno::Reference< awt::XGraphics > xGraphics(aVirtualDevice->CreateUnoGraphics()); + uno::Reference< awt::XView > xControlView(rXControl, uno::UNO_QUERY); + + if(xGraphics.is() && xControlView.is()) + { + // link graphics and view + xControlView->setGraphics(xGraphics); + + { // #i93162# For painting the control setting a Zoom (using setZoom() at the xControlView) + // is needed to define the font size. Normally this is done in + // ViewObjectContactOfUnoControl::createPrimitive2DSequence by using positionControlForPaint(). + // For some reason the difference between MapUnit::MapTwipS and MapUnit::Map100thMM still plays + // a role there so that for Draw/Impress/Calc (the MapUnit::Map100thMM users) i need to set a zoom + // here, too. The factor includes the needed scale, but is calculated by pure comparisons. It + // is somehow related to the twips/100thmm relationship. + bool bUserIs100thmm(false); + const uno::Reference< awt::XControl > xControl(xControlView, uno::UNO_QUERY); + + if(xControl.is()) + { + uno::Reference<awt::XWindowPeer> xWindowPeer(xControl->getPeer()); + + VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(xWindowPeer); + if (pWindow) + { + pWindow = pWindow->GetParent(); + + if(pWindow && MapUnit::Map100thMM == pWindow->GetMapMode().GetMapUnit()) + { + bUserIs100thmm = true; + } + } + } + + if(bUserIs100thmm) + { + // calc screen zoom for text display. fFactor is already added indirectly in aDiscreteSize + basegfx::B2DVector aScreenZoom( + basegfx::fTools::equalZero(aScale.getX()) ? 1.0 : aDiscreteSize.getX() / aScale.getX(), + basegfx::fTools::equalZero(aScale.getY()) ? 1.0 : aDiscreteSize.getY() / aScale.getY()); + static const double fZoomScale(28.0); // do not ask for this constant factor, but it gets the zoom right + aScreenZoom *= fZoomScale; + + // set zoom at control view for text scaling + xControlView->setZoom(static_cast<float>(aScreenZoom.getX()), static_cast<float>(aScreenZoom.getY())); + } + } + + try + { + // try to paint it to VirtualDevice + xControlView->draw(0, 0); + + // get bitmap + const BitmapEx aContent(aVirtualDevice->GetBitmapEx(Point(), aSizePixel)); + + // to avoid scaling, use the Bitmap pixel size as primitive size + const Size aBitmapSize(aContent.GetSizePixel()); + basegfx::B2DVector aBitmapSizeLogic( + rViewInformation.getInverseObjectToViewTransformation() * + basegfx::B2DVector(aBitmapSize.getWidth() - 1, aBitmapSize.getHeight() - 1)); + + if(bScaleUsed) + { + // if scaled adapt to scaled size + aBitmapSizeLogic /= fFactor; + } + + // short form for scale and translate transformation + const basegfx::B2DHomMatrix aBitmapTransform(basegfx::utils::createScaleTranslateB2DHomMatrix( + aBitmapSizeLogic.getX(), aBitmapSizeLogic.getY(), aTranslate.getX(), aTranslate.getY())); + + // create primitive + xRetval = new BitmapPrimitive2D( + VCLUnoHelper::CreateVCLXBitmap(aContent), + aBitmapTransform); + } + catch( const uno::Exception& ) + { + DBG_UNHANDLED_EXCEPTION("drawinglayer"); + } + } + } + } + } + + return xRetval; + } + + Primitive2DReference ControlPrimitive2D::createPlaceholderDecomposition() const + { + // create a gray placeholder hairline polygon in object size + basegfx::B2DRange aObjectRange(0.0, 0.0, 1.0, 1.0); + aObjectRange.transform(getTransform()); + const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(aObjectRange)); + const basegfx::BColor aGrayTone(0xc0 / 255.0, 0xc0 / 255.0, 0xc0 / 255.0); + + // The replacement object may also get a text like 'empty group' here later + Primitive2DReference xRetval(new PolygonHairlinePrimitive2D(aOutline, aGrayTone)); + + return xRetval; + } + + void ControlPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const + { + // try to create a bitmap decomposition. If that fails for some reason, + // at least create a replacement decomposition. + Primitive2DReference xReference(createBitmapDecomposition(rViewInformation)); + + if(!xReference.is()) + { + xReference = createPlaceholderDecomposition(); + } + + rContainer.push_back(xReference); + } + + ControlPrimitive2D::ControlPrimitive2D( + const basegfx::B2DHomMatrix& rTransform, + const uno::Reference< awt::XControlModel >& rxControlModel) + : maTransform(rTransform), + mxControlModel(rxControlModel) + { + } + + ControlPrimitive2D::ControlPrimitive2D( + const basegfx::B2DHomMatrix& rTransform, + const uno::Reference< awt::XControlModel >& rxControlModel, + const uno::Reference< awt::XControl >& rxXControl) + : maTransform(rTransform), + mxControlModel(rxControlModel), + mxXControl(rxXControl) + { + } + + const uno::Reference< awt::XControl >& ControlPrimitive2D::getXControl() const + { + if(!mxXControl.is()) + { + const_cast< ControlPrimitive2D* >(this)->createXControl(); + } + + return mxXControl; + } + + bool ControlPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const + { + // use base class compare operator + if(!BufferedDecompositionPrimitive2D::operator==(rPrimitive)) + return false; + + const ControlPrimitive2D& rCompare = static_cast<const ControlPrimitive2D&>(rPrimitive); + + if(getTransform() != rCompare.getTransform()) + return false; + + // check if ControlModel references both are/are not + if (getControlModel().is() != rCompare.getControlModel().is()) + return false; + + if(getControlModel().is()) + { + // both exist, check for equality + if (getControlModel() != rCompare.getControlModel()) + return false; + } + + // check if XControl references both are/are not + if (getXControl().is() != rCompare.getXControl().is()) + return false; + + if(getXControl().is()) + { + // both exist, check for equality + if (getXControl() != rCompare.getXControl()) + return false; + } + + return true; + } + + basegfx::B2DRange ControlPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const + { + // simply derivate from unit range + basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0); + aRetval.transform(getTransform()); + return aRetval; + } + + void ControlPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const + { + // this primitive is view-dependent related to the scaling. If scaling has changed, + // destroy existing decomposition. To detect change, use size of unit size in view coordinates + const basegfx::B2DVector aNewScaling(rViewInformation.getObjectToViewTransformation() * basegfx::B2DVector(1.0, 1.0)); + + if(!getBuffered2DDecomposition().empty()) + { + if(!maLastViewScaling.equal(aNewScaling)) + { + // conditions of last local decomposition have changed, delete + const_cast< ControlPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer()); + } + } + + if(getBuffered2DDecomposition().empty()) + { + // remember ViewTransformation + const_cast< ControlPrimitive2D* >(this)->maLastViewScaling = aNewScaling; + } + + // use parent implementation + BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation); + } + + // provide unique ID + sal_uInt32 ControlPrimitive2D::getPrimitive2DID() const + { + return PRIMITIVE2D_ID_CONTROLPRIMITIVE2D; + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |