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Diffstat (limited to '')
| -rw-r--r-- | sdext/source/presenter/PresenterSlidePreview.cxx | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/sdext/source/presenter/PresenterSlidePreview.cxx b/sdext/source/presenter/PresenterSlidePreview.cxx new file mode 100644 index 000000000..9e22850de --- /dev/null +++ b/sdext/source/presenter/PresenterSlidePreview.cxx @@ -0,0 +1,357 @@ +/* -*- 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 "PresenterSlidePreview.hxx" +#include "PresenterCanvasHelper.hxx" +#include "PresenterGeometryHelper.hxx" +#include "PresenterPaintManager.hxx" +#include "PresenterBitmapContainer.hxx" +#include <com/sun/star/awt/XWindowPeer.hpp> +#include <com/sun/star/rendering/CompositeOperation.hpp> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::drawing::framework; + +namespace +{ + // Use a super sample factor greater than 1 to achieve a poor mans + // antialiasing effect for slide previews. + const sal_Int16 gnSuperSampleFactor = 2; +} + +namespace sdext::presenter { + +//===== PresenterSlidePreview ================================================= + +PresenterSlidePreview::PresenterSlidePreview ( + const Reference<XComponentContext>& rxContext, + const Reference<XResourceId>& rxViewId, + const Reference<XPane>& rxAnchorPane, + const ::rtl::Reference<PresenterController>& rpPresenterController) + : PresenterSlidePreviewInterfaceBase(m_aMutex), + mpPresenterController(rpPresenterController), + mxViewId(rxViewId), + mxPreviewRenderer(), + mxPreview(), + mxCurrentSlide(), + mnSlideAspectRatio(28.0 / 21.0), + mxWindow(), + mxCanvas() +{ + if ( ! rxContext.is() + || ! rxViewId.is() + || ! rxAnchorPane.is() + || ! rpPresenterController.is()) + { + throw RuntimeException( + "PresenterSlidePreview can not be constructed due to empty argument", + static_cast<XWeak*>(this)); + } + + mxWindow = rxAnchorPane->getWindow(); + mxCanvas = rxAnchorPane->getCanvas(); + + if (mxWindow.is()) + { + mxWindow->addWindowListener(this); + mxWindow->addPaintListener(this); + + Reference<awt::XWindowPeer> xPeer (mxWindow, UNO_QUERY); + if (xPeer.is()) + xPeer->setBackground(util::Color(0xff000000)); + + mxWindow->setVisible(true); + } + + if (mpPresenterController.get() != nullptr) + mnSlideAspectRatio = mpPresenterController->GetSlideAspectRatio(); + + Reference<lang::XMultiComponentFactory> xFactory = rxContext->getServiceManager(); + if (xFactory.is()) + mxPreviewRenderer.set( + xFactory->createInstanceWithContext( + "com.sun.star.drawing.SlideRenderer", + rxContext), + UNO_QUERY); + mpBitmaps = std::make_shared<PresenterBitmapContainer>( + "PresenterScreenSettings/ScrollBar/Bitmaps", + std::shared_ptr<PresenterBitmapContainer>(), + rxContext, + mxCanvas); + Resize(); +} + +PresenterSlidePreview::~PresenterSlidePreview() +{ +} + +void SAL_CALL PresenterSlidePreview::disposing() +{ + if (mxWindow.is()) + { + mxWindow->removeWindowListener(this); + mxWindow->removePaintListener(this); + mxWindow = nullptr; + mxCanvas = nullptr; + } + + Reference<lang::XComponent> xComponent (mxPreviewRenderer, UNO_QUERY); + if (xComponent.is()) + xComponent->dispose(); +} + +//----- XResourceId ----------------------------------------------------------- + +Reference<XResourceId> SAL_CALL PresenterSlidePreview::getResourceId() +{ + return mxViewId; +} + +sal_Bool SAL_CALL PresenterSlidePreview::isAnchorOnly() +{ + return false; +} + +//----- XWindowListener ------------------------------------------------------- + +void SAL_CALL PresenterSlidePreview::windowResized (const awt::WindowEvent&) +{ + ThrowIfDisposed(); + ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); + Resize(); +} + +void SAL_CALL PresenterSlidePreview::windowMoved (const awt::WindowEvent&) {} + +void SAL_CALL PresenterSlidePreview::windowShown (const lang::EventObject&) +{ + ThrowIfDisposed(); + ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); + Resize(); +} + +void SAL_CALL PresenterSlidePreview::windowHidden (const lang::EventObject&) {} + +//----- XPaintListener -------------------------------------------------------- + +void SAL_CALL PresenterSlidePreview::windowPaint (const awt::PaintEvent& rEvent) +{ + ThrowIfDisposed(); + + ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); + if (mxWindow.is()) + Paint(awt::Rectangle( + rEvent.UpdateRect.X, + rEvent.UpdateRect.Y, + rEvent.UpdateRect.Width, + rEvent.UpdateRect.Height)); +} + +//----- lang::XEventListener -------------------------------------------------- + +void SAL_CALL PresenterSlidePreview::disposing (const lang::EventObject& rEvent) +{ + if (rEvent.Source == mxWindow) + { + mxWindow = nullptr; + mxCanvas = nullptr; + mxPreview = nullptr; + } +} + +//----- XDrawView ------------------------------------------------------------- + +void SAL_CALL PresenterSlidePreview::setCurrentPage (const Reference<drawing::XDrawPage>& rxSlide) +{ + ThrowIfDisposed(); + ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); + SetSlide(rxSlide); +} + +Reference<drawing::XDrawPage> SAL_CALL PresenterSlidePreview::getCurrentPage() +{ + ThrowIfDisposed(); + return nullptr; +} + + +void PresenterSlidePreview::SetSlide (const Reference<drawing::XDrawPage>& rxPage) +{ + mxCurrentSlide = rxPage; + mxPreview = nullptr; + + // The preview is not transparent, therefore only this window, not its + // parent, has to be invalidated. + mpPresenterController->GetPaintManager()->Invalidate(mxWindow); +} + +void PresenterSlidePreview::Paint (const awt::Rectangle& rBoundingBox) +{ + if ( ! mxWindow.is()) + return; + if ( ! mxCanvas.is()) + return; + if ( ! mxPreviewRenderer.is()) + return; + + // Make sure that a preview in the correct size exists. + awt::Rectangle aWindowBox (mxWindow->getPosSize()); + + bool bCustomAnimation = false; + bool bTransition = false; + if( mxCurrentSlide.is() ) + { + bCustomAnimation = PresenterController::HasCustomAnimation(mxCurrentSlide); + bTransition = PresenterController::HasTransition(mxCurrentSlide); + } + + if ( ! mxPreview.is() && mxCurrentSlide.is()) + { + // Create a new preview bitmap. + mxPreview = mxPreviewRenderer->createPreviewForCanvas( + mxCurrentSlide, + awt::Size(aWindowBox.Width, aWindowBox.Height), + gnSuperSampleFactor, + mxCanvas); + } + + // Determine the bounding box of the preview. + awt::Rectangle aPreviewBox; + if (mxPreview.is()) + { + const geometry::IntegerSize2D aPreviewSize (mxPreview->getSize()); + aPreviewBox = awt::Rectangle( + (aWindowBox.Width - aPreviewSize.Width)/2, + (aWindowBox.Height - aPreviewSize.Height)/2, + aPreviewSize.Width, + aPreviewSize.Height); + } + else + { + if (mnSlideAspectRatio > 0) + { + const awt::Size aPreviewSize (mxPreviewRenderer->calculatePreviewSize( + mnSlideAspectRatio,awt::Size(aWindowBox.Width, aWindowBox.Height))); + aPreviewBox = awt::Rectangle( + (aWindowBox.Width - aPreviewSize.Width)/2, + (aWindowBox.Height - aPreviewSize.Height)/2, + aPreviewSize.Width, + aPreviewSize.Height); + } + } + + // Paint the background. + mpPresenterController->GetCanvasHelper()->Paint( + mpPresenterController->GetViewBackground(mxViewId->getResourceURL()), + mxCanvas, + rBoundingBox, + awt::Rectangle(0,0,aWindowBox.Width,aWindowBox.Height), + aPreviewBox); + + // Paint the preview. + const rendering::ViewState aViewState( + geometry::AffineMatrix2D(1,0,0, 0,1,0), + nullptr); + + Sequence<double> aBackgroundColor(4); + rendering::RenderState aRenderState ( + geometry::AffineMatrix2D(1, 0, aPreviewBox.X, 0, 1, aPreviewBox.Y), + nullptr, + aBackgroundColor, + rendering::CompositeOperation::SOURCE); + PresenterCanvasHelper::SetDeviceColor(aRenderState, 0x00000000); + if (mxPreview.is()) + { + mxCanvas->drawBitmap(mxPreview, aViewState, aRenderState); + if( bTransition ) + { + const awt::Rectangle aTransitionPreviewBox(5, aWindowBox.Height-20, 0, 0); + SharedBitmapDescriptor aTransitionDescriptor = mpBitmaps->GetBitmap("Transition"); + Reference<rendering::XBitmap> xTransitionIcon (aTransitionDescriptor->GetNormalBitmap()); + rendering::RenderState aTransitionRenderState ( + geometry::AffineMatrix2D(1, 0, aTransitionPreviewBox.X, 0, 1, aTransitionPreviewBox.Y), + nullptr, + aBackgroundColor, + rendering::CompositeOperation::SOURCE); + mxCanvas->drawBitmap(xTransitionIcon, aViewState, aTransitionRenderState); + } + if( bCustomAnimation ) + { + const awt::Rectangle aAnimationPreviewBox(5, aWindowBox.Height-40, 0, 0); + SharedBitmapDescriptor aAnimationDescriptor = mpBitmaps->GetBitmap("Animation"); + Reference<rendering::XBitmap> xAnimationIcon (aAnimationDescriptor->GetNormalBitmap()); + rendering::RenderState aAnimationRenderState ( + geometry::AffineMatrix2D(1, 0, aAnimationPreviewBox.X, 0, 1, aAnimationPreviewBox.Y), + nullptr, + aBackgroundColor, + rendering::CompositeOperation::SOURCE); + mxCanvas->drawBitmap(xAnimationIcon, aViewState, aAnimationRenderState); + } + } + else + { + if (mnSlideAspectRatio > 0) + { + Reference<rendering::XPolyPolygon2D> xPolygon ( + PresenterGeometryHelper::CreatePolygon(aPreviewBox, mxCanvas->getDevice())); + if (xPolygon.is()) + mxCanvas->fillPolyPolygon(xPolygon, aViewState, aRenderState); + } + } + + Reference<rendering::XSpriteCanvas> xSpriteCanvas (mxCanvas, UNO_QUERY); + if (xSpriteCanvas.is()) + xSpriteCanvas->updateScreen(false); +} + +void PresenterSlidePreview::Resize() +{ + if (mxPreviewRenderer.is() && mxPreview.is()) + { + const awt::Rectangle aWindowBox (mxWindow->getPosSize()); + const awt::Size aNewPreviewSize (mxPreviewRenderer->calculatePreviewSize( + mnSlideAspectRatio, + awt::Size(aWindowBox.Width, aWindowBox.Height))); + const geometry::IntegerSize2D aPreviewSize (mxPreview->getSize()); + if (aNewPreviewSize.Width==aPreviewSize.Width + && aNewPreviewSize.Height==aPreviewSize.Height) + { + // The size of the window may have changed but the preview would + // be painted in the same size (but not necessarily at the same + // position.) + return; + } + } + SetSlide(mxCurrentSlide); +} + +void PresenterSlidePreview::ThrowIfDisposed() +{ + if (PresenterSlidePreviewInterfaceBase::rBHelper.bDisposed || PresenterSlidePreviewInterfaceBase::rBHelper.bInDispose) + { + throw lang::DisposedException ( + "PresenterSlidePreview object has already been disposed", + static_cast<uno::XWeak*>(this)); + } +} + +} // end of namespace ::sdext::presenter + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |