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Diffstat (limited to 'sd/source/ui/presenter/PresenterCanvas.cxx')
| -rw-r--r-- | sd/source/ui/presenter/PresenterCanvas.cxx | 789 |
1 files changed, 789 insertions, 0 deletions
diff --git a/sd/source/ui/presenter/PresenterCanvas.cxx b/sd/source/ui/presenter/PresenterCanvas.cxx new file mode 100644 index 000000000..f1f2271a1 --- /dev/null +++ b/sd/source/ui/presenter/PresenterCanvas.cxx @@ -0,0 +1,789 @@ +/* -*- 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 "PresenterCanvas.hxx" +#include "CanvasUpdateRequester.hxx" + +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolypolygon.hxx> +#include <basegfx/polygon/b2dpolygonclipper.hxx> +#include <basegfx/range/b2drectangle.hxx> +#include <basegfx/utils/canvastools.hxx> +#include <com/sun/star/awt/XWindow.hpp> +#include <cppuhelper/basemutex.hxx> +#include <cppuhelper/compbase.hxx> +#include <rtl/ref.hxx> +#include <toolkit/helper/vclunohelper.hxx> +#include <vcl/window.hxx> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; + +namespace sd::presenter { + +//===== PresenterCustomSprite ================================================= + +/** Wrapper around a sprite that is displayed on a PresenterCanvas. +*/ +namespace { + typedef ::cppu::WeakComponentImplHelper < + css::rendering::XCustomSprite + > PresenterCustomSpriteInterfaceBase; + +class PresenterCustomSprite + : protected ::cppu::BaseMutex, + public PresenterCustomSpriteInterfaceBase +{ +public: + PresenterCustomSprite ( + const rtl::Reference<PresenterCanvas>& rpCanvas, + const Reference<rendering::XCustomSprite>& rxSprite, + const Reference<awt::XWindow>& rxBaseWindow); + PresenterCustomSprite(const PresenterCustomSprite&) = delete; + PresenterCustomSprite& operator=(const PresenterCustomSprite&) = delete; + virtual void SAL_CALL disposing() override; + + // XSprite + + virtual void SAL_CALL setAlpha (double nAlpha) override; + + virtual void SAL_CALL move (const geometry::RealPoint2D& rNewPos, + const rendering::ViewState& rViewState, + const rendering::RenderState& rRenderState) override; + + virtual void SAL_CALL transform (const geometry::AffineMatrix2D& rTransformation) override; + + virtual void SAL_CALL clip (const Reference<rendering::XPolyPolygon2D>& rClip) override; + + virtual void SAL_CALL setPriority (double nPriority) override; + + virtual void SAL_CALL show() override; + + virtual void SAL_CALL hide() override; + + // XCustomSprite + + virtual Reference<rendering::XCanvas> SAL_CALL getContentCanvas() override; + +private: + rtl::Reference<PresenterCanvas> mpCanvas; + Reference<rendering::XCustomSprite> mxSprite; + Reference<awt::XWindow> mxBaseWindow; + geometry::RealPoint2D maPosition; + + /// @throws css::lang::DisposedException + void ThrowIfDisposed(); +}; + +} + +//===== PresenterCanvas ======================================================= + +PresenterCanvas::PresenterCanvas ( + const Reference<rendering::XSpriteCanvas>& rxUpdateCanvas, + const Reference<awt::XWindow>& rxUpdateWindow, + const Reference<rendering::XCanvas>& rxSharedCanvas, + const Reference<awt::XWindow>& rxSharedWindow, + const Reference<awt::XWindow>& rxWindow) + : PresenterCanvasInterfaceBase(m_aMutex), + mxUpdateCanvas(rxUpdateCanvas), + mxUpdateWindow(rxUpdateWindow), + mxSharedCanvas(rxSharedCanvas), + mxSharedWindow(rxSharedWindow), + mxWindow(rxWindow), + maOffset(), + mbOffsetUpdatePending(true) +{ + if (mxWindow.is()) + mxWindow->addWindowListener(this); + + if (mxUpdateCanvas.is()) + { + m_pUpdateRequester = CanvasUpdateRequester::Instance(mxUpdateCanvas); + } +} + +PresenterCanvas::~PresenterCanvas() +{ +} + +void SAL_CALL PresenterCanvas::disposing() +{ + if (mxWindow.is()) + mxWindow->removeWindowListener(this); +} + +//----- XCanvas --------------------------------------------------------------- + +void SAL_CALL PresenterCanvas::clear() +{ + ThrowIfDisposed(); + // ToDo: Clear the area covered by the child window. A simple forward + // would clear the whole shared canvas. +} + +void SAL_CALL PresenterCanvas::drawPoint ( + const css::geometry::RealPoint2D& aPoint, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + mxSharedCanvas->drawPoint(aPoint,MergeViewState(aViewState),aRenderState); +} + +void SAL_CALL PresenterCanvas::drawLine ( + const css::geometry::RealPoint2D& aStartPoint, + const css::geometry::RealPoint2D& aEndPoint, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + mxSharedCanvas->drawLine(aStartPoint,aEndPoint,MergeViewState(aViewState),aRenderState); +} + +void SAL_CALL PresenterCanvas::drawBezier ( + const css::geometry::RealBezierSegment2D& aBezierSegment, + const css::geometry::RealPoint2D& aEndPoint, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + mxSharedCanvas->drawBezier(aBezierSegment,aEndPoint,MergeViewState(aViewState),aRenderState); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL PresenterCanvas::drawPolyPolygon ( + const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + return mxSharedCanvas->drawPolyPolygon( + xPolyPolygon, MergeViewState(aViewState), aRenderState); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL PresenterCanvas::strokePolyPolygon ( + const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + const css::rendering::StrokeAttributes& aStrokeAttributes) +{ + ThrowIfDisposed(); + return mxSharedCanvas->strokePolyPolygon( + xPolyPolygon, MergeViewState(aViewState), aRenderState, aStrokeAttributes); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::strokeTexturedPolyPolygon ( + const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + const css::uno::Sequence< css::rendering::Texture >& aTextures, + const css::rendering::StrokeAttributes& aStrokeAttributes) +{ + ThrowIfDisposed(); + return mxSharedCanvas->strokeTexturedPolyPolygon( + xPolyPolygon, MergeViewState(aViewState), aRenderState, aTextures, aStrokeAttributes); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::strokeTextureMappedPolyPolygon( + const css::uno::Reference<css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + const css::uno::Sequence<css::rendering::Texture>& aTextures, + const css::uno::Reference<css::geometry::XMapping2D>& xMapping, + const css::rendering::StrokeAttributes& aStrokeAttributes) +{ + ThrowIfDisposed(); + return mxSharedCanvas->strokeTextureMappedPolyPolygon( + xPolyPolygon, + MergeViewState(aViewState), + aRenderState, + aTextures, + xMapping, + aStrokeAttributes); +} + +css::uno::Reference<css::rendering::XPolyPolygon2D> SAL_CALL + PresenterCanvas::queryStrokeShapes( + const css::uno::Reference<css::rendering::XPolyPolygon2D>& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + const css::rendering::StrokeAttributes& aStrokeAttributes) +{ + ThrowIfDisposed(); + return mxSharedCanvas->queryStrokeShapes( + xPolyPolygon, MergeViewState(aViewState), aRenderState, aStrokeAttributes); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::fillPolyPolygon( + const css::uno::Reference<css::rendering::XPolyPolygon2D>& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + return mxSharedCanvas->fillPolyPolygon( + xPolyPolygon, MergeViewState(aViewState), aRenderState); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::fillTexturedPolyPolygon( + const css::uno::Reference<css::rendering::XPolyPolygon2D>& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + const css::uno::Sequence<css::rendering::Texture>& xTextures) +{ + ThrowIfDisposed(); + return mxSharedCanvas->fillTexturedPolyPolygon( + xPolyPolygon, MergeViewState(aViewState), aRenderState, xTextures); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::fillTextureMappedPolyPolygon( + const css::uno::Reference< css::rendering::XPolyPolygon2D >& xPolyPolygon, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + const css::uno::Sequence< css::rendering::Texture >& xTextures, + const css::uno::Reference< css::geometry::XMapping2D >& xMapping) +{ + ThrowIfDisposed(); + return mxSharedCanvas->fillTextureMappedPolyPolygon( + xPolyPolygon, MergeViewState(aViewState), aRenderState, xTextures, xMapping); +} + +css::uno::Reference<css::rendering::XCanvasFont> SAL_CALL + PresenterCanvas::createFont( + const css::rendering::FontRequest& aFontRequest, + const css::uno::Sequence< css::beans::PropertyValue >& aExtraFontProperties, + const css::geometry::Matrix2D& aFontMatrix) +{ + ThrowIfDisposed(); + return mxSharedCanvas->createFont( + aFontRequest, aExtraFontProperties, aFontMatrix); +} + +css::uno::Sequence<css::rendering::FontInfo> SAL_CALL + PresenterCanvas::queryAvailableFonts( + const css::rendering::FontInfo& aFilter, + const css::uno::Sequence< css::beans::PropertyValue >& aFontProperties) +{ + ThrowIfDisposed(); + return mxSharedCanvas->queryAvailableFonts(aFilter, aFontProperties); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::drawText( + const css::rendering::StringContext& aText, + const css::uno::Reference< css::rendering::XCanvasFont >& xFont, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState, + ::sal_Int8 nTextDirection) +{ + ThrowIfDisposed(); + return mxSharedCanvas->drawText( + aText, xFont, MergeViewState(aViewState), aRenderState, nTextDirection); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::drawTextLayout( + const css::uno::Reference< css::rendering::XTextLayout >& xLayoutetText, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + return mxSharedCanvas->drawTextLayout( + xLayoutetText, MergeViewState(aViewState), aRenderState); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::drawBitmap( + const css::uno::Reference< css::rendering::XBitmap >& xBitmap, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + return mxSharedCanvas->drawBitmap( + xBitmap, MergeViewState(aViewState), aRenderState); +} + +css::uno::Reference<css::rendering::XCachedPrimitive> SAL_CALL + PresenterCanvas::drawBitmapModulated( + const css::uno::Reference< css::rendering::XBitmap>& xBitmap, + const css::rendering::ViewState& aViewState, + const css::rendering::RenderState& aRenderState) +{ + ThrowIfDisposed(); + return mxSharedCanvas->drawBitmapModulated( + xBitmap, MergeViewState(aViewState), aRenderState); +} + +css::uno::Reference<css::rendering::XGraphicDevice> SAL_CALL + PresenterCanvas::getDevice() +{ + ThrowIfDisposed(); + return mxSharedCanvas->getDevice(); +} + +//----- XSpriteCanvas --------------------------------------------------------- + +Reference<rendering::XAnimatedSprite> SAL_CALL + PresenterCanvas::createSpriteFromAnimation ( + const css::uno::Reference<css::rendering::XAnimation>& rAnimation) +{ + ThrowIfDisposed(); + + Reference<rendering::XSpriteCanvas> xSpriteCanvas (mxSharedCanvas, UNO_QUERY); + if (xSpriteCanvas.is()) + return xSpriteCanvas->createSpriteFromAnimation(rAnimation); + else + return nullptr; +} + +Reference<rendering::XAnimatedSprite> SAL_CALL + PresenterCanvas::createSpriteFromBitmaps ( + const css::uno::Sequence< + css::uno::Reference< css::rendering::XBitmap > >& rAnimationBitmaps, + ::sal_Int8 nInterpolationMode) +{ + ThrowIfDisposed(); + + Reference<rendering::XSpriteCanvas> xSpriteCanvas (mxSharedCanvas, UNO_QUERY); + if (xSpriteCanvas.is()) + return xSpriteCanvas->createSpriteFromBitmaps(rAnimationBitmaps, nInterpolationMode); + else + return nullptr; +} + +Reference<rendering::XCustomSprite> SAL_CALL + PresenterCanvas::createCustomSprite ( + const css::geometry::RealSize2D& rSpriteSize) +{ + ThrowIfDisposed(); + + Reference<rendering::XSpriteCanvas> xSpriteCanvas (mxSharedCanvas, UNO_QUERY); + if (xSpriteCanvas.is()) + return new PresenterCustomSprite( + this, + xSpriteCanvas->createCustomSprite(rSpriteSize), + mxSharedWindow); + else if (mxUpdateCanvas.is()) + return new PresenterCustomSprite( + this, + mxUpdateCanvas->createCustomSprite(rSpriteSize), + mxUpdateWindow); + else + return nullptr; +} + +Reference<rendering::XSprite> SAL_CALL + PresenterCanvas::createClonedSprite ( + const css::uno::Reference< css::rendering::XSprite >& rxOriginal) +{ + ThrowIfDisposed(); + + Reference<rendering::XSpriteCanvas> xSpriteCanvas (mxSharedCanvas, UNO_QUERY); + if (xSpriteCanvas.is()) + return xSpriteCanvas->createClonedSprite(rxOriginal); + if (mxUpdateCanvas.is()) + return mxUpdateCanvas->createClonedSprite(rxOriginal); + return nullptr; +} + +sal_Bool SAL_CALL PresenterCanvas::updateScreen (sal_Bool bUpdateAll) +{ + ThrowIfDisposed(); + + mbOffsetUpdatePending = true; + if (m_pUpdateRequester != nullptr) + { + m_pUpdateRequester->RequestUpdate(bUpdateAll); + return true; + } + else + { + return false; + } +} + +//----- XEventListener -------------------------------------------------------- + +void SAL_CALL PresenterCanvas::disposing (const css::lang::EventObject& rEvent) +{ + ThrowIfDisposed(); + if (rEvent.Source == mxWindow) + mxWindow = nullptr; +} + +//----- XWindowListener ------------------------------------------------------- + +void SAL_CALL PresenterCanvas::windowResized (const css::awt::WindowEvent&) +{ + ThrowIfDisposed(); + mbOffsetUpdatePending = true; +} + +void SAL_CALL PresenterCanvas::windowMoved (const css::awt::WindowEvent&) +{ + ThrowIfDisposed(); + mbOffsetUpdatePending = true; +} + +void SAL_CALL PresenterCanvas::windowShown (const css::lang::EventObject&) +{ + ThrowIfDisposed(); + mbOffsetUpdatePending = true; +} + +void SAL_CALL PresenterCanvas::windowHidden (const css::lang::EventObject&) +{ + ThrowIfDisposed(); +} + +//----- XBitmap --------------------------------------------------------------- + +geometry::IntegerSize2D SAL_CALL PresenterCanvas::getSize() +{ + ThrowIfDisposed(); + + if (mxWindow.is()) + { + const awt::Rectangle aWindowBox (mxWindow->getPosSize()); + return geometry::IntegerSize2D(aWindowBox.Width, aWindowBox.Height); + } + else + return geometry::IntegerSize2D(0,0); +} + +sal_Bool SAL_CALL PresenterCanvas::hasAlpha() +{ + Reference<rendering::XBitmap> xBitmap (mxSharedCanvas, UNO_QUERY); + if (xBitmap.is()) + return xBitmap->hasAlpha(); + else + return false; +} + +Reference<rendering::XBitmap> SAL_CALL PresenterCanvas::getScaledBitmap( + const css::geometry::RealSize2D&, + sal_Bool) +{ + ThrowIfDisposed(); + + // Not implemented. + + return nullptr; +} + +rendering::ViewState PresenterCanvas::MergeViewState ( + const rendering::ViewState& rViewState) +{ + // Make sure the offset is up-to-date. + if (mbOffsetUpdatePending) + maOffset = GetOffset(mxSharedWindow); + return MergeViewState(rViewState, maOffset); +} + +css::rendering::ViewState PresenterCanvas::MergeViewState ( + const css::rendering::ViewState& rViewState, + const css::awt::Point& rOffset) +{ + // Early rejects. + if ( ! mxSharedCanvas.is()) + return rViewState; + + Reference<rendering::XGraphicDevice> xDevice (mxSharedCanvas->getDevice()); + if ( ! xDevice.is()) + return rViewState; + + // Create a modifiable copy of the given view state. + rendering::ViewState aViewState (rViewState); + + // Prepare the local clip rectangle. + ::basegfx::B2DRectangle aWindowRange (GetClipRectangle(aViewState.AffineTransform, rOffset)); + + // Adapt the offset of the view state. + aViewState.AffineTransform.m02 += rOffset.X; + aViewState.AffineTransform.m12 += rOffset.Y; + + // Adapt the clip polygon. + if ( ! aViewState.Clip.is()) + { + // Cancel out the later multiplication with the view state + // transformation. + aViewState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + xDevice, + ::basegfx::B2DPolyPolygon(::basegfx::utils::createPolygonFromRect(aWindowRange))); + } + else + { + // Have to compute the intersection of the given clipping polygon in + // the view state and the local clip rectangle. + + // Clip the view state clipping polygon against the local clip rectangle. + const ::basegfx::B2DPolyPolygon aClipPolygon ( + ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D( + aViewState.Clip)); + const ::basegfx::B2DPolyPolygon aClippedClipPolygon ( + ::basegfx::utils::clipPolyPolygonOnRange( + aClipPolygon, + aWindowRange, + true, /* bInside */ + false /* bStroke */)); + + aViewState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + xDevice, + aClippedClipPolygon); + } + + return aViewState; +} + +awt::Point PresenterCanvas::GetOffset (const Reference<awt::XWindow>& rxBaseWindow) +{ + mbOffsetUpdatePending = false; + if (mxWindow.is() && rxBaseWindow.is()) + { + VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(mxWindow); + VclPtr<vcl::Window> pSharedWindow = VCLUnoHelper::GetWindow(rxBaseWindow); + if (pWindow && pSharedWindow) + { + ::tools::Rectangle aBox = pWindow->GetWindowExtentsRelative(pSharedWindow); + + // Calculate offset of this canvas with respect to the shared + // canvas. + return awt::Point(aBox.Left(), aBox.Top()); + } + } + + return awt::Point(0, 0); +} + +::basegfx::B2DRectangle PresenterCanvas::GetClipRectangle ( + const css::geometry::AffineMatrix2D& rViewTransform, + const awt::Point& rOffset) +{ + VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(mxWindow); + if (!pWindow) + return ::basegfx::B2DRectangle(); + + VclPtr<vcl::Window> pSharedWindow = VCLUnoHelper::GetWindow(mxSharedWindow); + if (!pSharedWindow) + return ::basegfx::B2DRectangle(); + + // Get the bounding box of the window and create a range in the + // coordinate system of the child window. + // Use the window extents. + ::tools::Rectangle aLocalClip = pWindow->GetWindowExtentsRelative(pSharedWindow); + + // The local clip rectangle is used to clip the view state clipping + // polygon. + ::basegfx::B2DRectangle aWindowRectangle ( + aLocalClip.Left() - rOffset.X, + aLocalClip.Top() - rOffset.Y, + aLocalClip.Right() - rOffset.X + 1, + aLocalClip.Bottom() - rOffset.Y + 1); + + // Calculate the inverted view state transformation to cancel out a + // later transformation of the local clip polygon with the view state + // transformation. + ::basegfx::B2DHomMatrix aInvertedViewStateTransformation; + ::basegfx::unotools::homMatrixFromAffineMatrix( + aInvertedViewStateTransformation, + rViewTransform); + if (aInvertedViewStateTransformation.invert()) + { + // Cancel out the later multiplication with the view state + // transformation. + aWindowRectangle.transform(aInvertedViewStateTransformation); + } + + return aWindowRectangle; +} + +Reference<rendering::XPolyPolygon2D> PresenterCanvas::UpdateSpriteClip ( + const Reference<rendering::XPolyPolygon2D>& rxOriginalClip, + const geometry::RealPoint2D& rLocation) +{ + // Check used resources and just return the original clip when not + // every one of them is available. + if ( ! mxWindow.is()) + return rxOriginalClip; + + Reference<rendering::XGraphicDevice> xDevice (mxSharedCanvas->getDevice()); + if ( ! xDevice.is()) + return rxOriginalClip; + + // Determine the bounds of the clip rectangle (the window border) in the + // coordinate system of the sprite. + const awt::Rectangle aWindowBox (mxWindow->getPosSize()); + const double nMinX (-rLocation.X); + const double nMinY (-rLocation.Y); + const double nMaxX (aWindowBox.Width-rLocation.X); + const double nMaxY (aWindowBox.Height-rLocation.Y); + + // Create a clip polygon. + Reference<rendering::XPolyPolygon2D> xPolygon; + if (rxOriginalClip.is()) + { + // Combine the original clip with the window clip. + const ::basegfx::B2DPolyPolygon aOriginalClip ( + ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(rxOriginalClip)); + ::basegfx::B2DRectangle aWindowRange (nMinX, nMinY, nMaxX, nMaxY); + const ::basegfx::B2DPolyPolygon aClippedClipPolygon ( + ::basegfx::utils::clipPolyPolygonOnRange( + aOriginalClip, + aWindowRange, + true, /* bInside */ + false /* bStroke */)); + xPolygon = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( + xDevice, + aClippedClipPolygon); + } + else + { + // Create a new clip polygon from the window clip rectangle. + Sequence<Sequence<geometry::RealPoint2D> > aPoints (1); + aPoints[0] = Sequence<geometry::RealPoint2D>(4); + aPoints[0][0] = geometry::RealPoint2D(nMinX,nMinY); + aPoints[0][1] = geometry::RealPoint2D(nMaxX,nMinY); + aPoints[0][2] = geometry::RealPoint2D(nMaxX,nMaxY); + aPoints[0][3] = geometry::RealPoint2D(nMinX,nMaxY); + Reference<rendering::XLinePolyPolygon2D> xLinePolygon( + xDevice->createCompatibleLinePolyPolygon(aPoints)); + if (xLinePolygon.is()) + xLinePolygon->setClosed(0, true); + xPolygon = xLinePolygon; + } + + return xPolygon; +} + +void PresenterCanvas::ThrowIfDisposed() +{ + if (rBHelper.bDisposed || rBHelper.bInDispose || ! mxSharedCanvas.is()) + { + throw lang::DisposedException ("PresenterCanvas object has already been disposed", + static_cast<uno::XWeak*>(this)); + } +} + +//===== PresenterCustomSprite ================================================= + +PresenterCustomSprite::PresenterCustomSprite ( + const rtl::Reference<PresenterCanvas>& rpCanvas, + const Reference<rendering::XCustomSprite>& rxSprite, + const Reference<awt::XWindow>& rxBaseWindow) + : PresenterCustomSpriteInterfaceBase(m_aMutex), + mpCanvas(rpCanvas), + mxSprite(rxSprite), + mxBaseWindow(rxBaseWindow), + maPosition(0,0) +{ +} + +void SAL_CALL PresenterCustomSprite::disposing() +{ + Reference<XComponent> xComponent (mxSprite, UNO_QUERY); + mxSprite = nullptr; + if (xComponent.is()) + xComponent->dispose(); + mpCanvas.clear(); +} + +//----- XSprite --------------------------------------------------------------- + +void SAL_CALL PresenterCustomSprite::setAlpha (const double nAlpha) +{ + ThrowIfDisposed(); + mxSprite->setAlpha(nAlpha); +} + +void SAL_CALL PresenterCustomSprite::move ( + const geometry::RealPoint2D& rNewPos, + const rendering::ViewState& rViewState, + const rendering::RenderState& rRenderState) +{ + ThrowIfDisposed(); + maPosition = rNewPos; + mxSprite->move( + rNewPos, + mpCanvas->MergeViewState(rViewState, mpCanvas->GetOffset(mxBaseWindow)), + rRenderState); + // Clip sprite against window bounds. This call is necessary because + // sprite clipping is done in the coordinate system of the sprite. + // Therefore, after each change of the sprites location the window + // bounds have to be transformed into the sprites coordinate system. + clip(nullptr); +} + +void SAL_CALL PresenterCustomSprite::transform (const geometry::AffineMatrix2D& rTransformation) +{ + ThrowIfDisposed(); + mxSprite->transform(rTransformation); +} + +void SAL_CALL PresenterCustomSprite::clip (const Reference<rendering::XPolyPolygon2D>& rxClip) +{ + ThrowIfDisposed(); + // The clip region is expected in the coordinate system of the sprite. + // UpdateSpriteClip() integrates the window bounds, transformed into the + // sprites coordinate system, with the given clip. + mxSprite->clip(mpCanvas->UpdateSpriteClip(rxClip, maPosition)); +} + +void SAL_CALL PresenterCustomSprite::setPriority (const double nPriority) +{ + ThrowIfDisposed(); + mxSprite->setPriority(nPriority); +} + +void SAL_CALL PresenterCustomSprite::show() +{ + ThrowIfDisposed(); + mxSprite->show(); +} + +void SAL_CALL PresenterCustomSprite::hide() +{ + ThrowIfDisposed(); + mxSprite->hide(); +} + +//----- XCustomSprite --------------------------------------------------------- + +Reference<rendering::XCanvas> PresenterCustomSprite::getContentCanvas() +{ + ThrowIfDisposed(); + return mxSprite->getContentCanvas(); +} + +void PresenterCustomSprite::ThrowIfDisposed() +{ + if (rBHelper.bDisposed || rBHelper.bInDispose || ! mxSprite.is()) + { + throw lang::DisposedException ("PresenterCustomSprite object has already been disposed", + static_cast<uno::XWeak*>(this)); + } +} + +} // end of namespace ::sd::presenter + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |