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Diffstat (limited to 'slideshow/source/engine/slideoverlaybutton.cxx')
| -rw-r--r-- | slideshow/source/engine/slideoverlaybutton.cxx | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/slideshow/source/engine/slideoverlaybutton.cxx b/slideshow/source/engine/slideoverlaybutton.cxx new file mode 100644 index 0000000000..40ade676b3 --- /dev/null +++ b/slideshow/source/engine/slideoverlaybutton.cxx @@ -0,0 +1,185 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * 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 <sal/config.h> + +#include <eventmultiplexer.hxx> +#include "slideoverlaybutton.hxx" + +#include <canvas/canvastools.hxx> +#include <cppcanvas/customsprite.hxx> +#include <basegfx/vector/b2dsize.hxx> +#include <basegfx/vector/b2dvector.hxx> +#include <comphelper/diagnose_ex.hxx> + +#include <com/sun/star/presentation/XSlideShowView.hpp> +#include <com/sun/star/rendering/XCanvas.hpp> + +#include <algorithm> +#include <utility> + +namespace slideshow::internal +{ +SlideOverlayButtonSharedPtr SlideOverlayButton::create( + const css::uno::Reference<css::rendering::XBitmap>& xIconBitmap, css::awt::Point pPosition, + std::function<void(basegfx::B2DPoint)> clickHandler, ScreenUpdater& rScreenUpdater, + EventMultiplexer& rEventMultiplexer, const UnoViewContainer& rViewContainer) +{ + SlideOverlayButtonSharedPtr pRet(new SlideOverlayButton( + xIconBitmap, pPosition, clickHandler, rScreenUpdater, rEventMultiplexer, rViewContainer)); + + rEventMultiplexer.addViewHandler(pRet); + // Set priority to 1000 so that the handler fires before the click handler on the slide + rEventMultiplexer.addClickHandler(pRet, 1000); + return pRet; +} + +SlideOverlayButton::SlideOverlayButton(css::uno::Reference<css::rendering::XBitmap> xIconBitmap, + css::awt::Point pPosition, + std::function<void(basegfx::B2DPoint)> clickHandler, + ScreenUpdater& rScreenUpdater, + EventMultiplexer& rEventMultiplexer, + const UnoViewContainer& rViewContainer) + : mxIconBitmap(std::move(xIconBitmap)) + , mrEventMultiplexer(rEventMultiplexer) + , mpPosition(pPosition) + , mClickHandler(clickHandler) + , mrScreenUpdater(rScreenUpdater) +{ + for (const auto& pView : rViewContainer) + viewAdded(pView); +} + +void SlideOverlayButton::setVisible(const bool bVisible) +{ + if (mbVisible == bVisible) + return; + + mbVisible = bVisible; + + for (const auto& rView : maViews) + if (rView.second) + rView.second->show(); + + // sprites changed, need a screen update for this frame. + mrScreenUpdater.requestImmediateUpdate(); +} + +css::geometry::IntegerSize2D SlideOverlayButton::getSize() const { return mxIconBitmap->getSize(); } + +basegfx::B2DPoint SlideOverlayButton::calcSpritePos(UnoViewSharedPtr const& rView) const +{ + const css::awt::Rectangle aViewArea(rView->getUnoView()->getCanvasArea()); + return basegfx::B2DPoint( + aViewArea.X + std::min(aViewArea.Width, mpPosition.X), + aViewArea.Y + + std::max(sal_Int32(0), + aViewArea.Height - mxIconBitmap->getSize().Height - mpPosition.Y)); +} + +void SlideOverlayButton::viewAdded(const UnoViewSharedPtr& rView) +{ + cppcanvas::CustomSpriteSharedPtr sprite; + + try + { + const css::geometry::IntegerSize2D spriteSize(mxIconBitmap->getSize()); + sprite = rView->createSprite(basegfx::B2DSize(spriteSize.Width, spriteSize.Height), + 1000.0); // sprite should be in front of all + // other sprites + css::rendering::ViewState viewState; + canvas::tools::initViewState(viewState); + css::rendering::RenderState renderState; + canvas::tools::initRenderState(renderState); + sprite->getContentCanvas()->getUNOCanvas()->drawBitmap(mxIconBitmap, viewState, + renderState); + + sprite->setAlpha(0.9); + sprite->movePixel(calcSpritePos(rView)); + sprite->show(); + } + catch (css::uno::Exception&) + { + TOOLS_WARN_EXCEPTION("slideshow", ""); + } + + maViews.emplace_back(rView, sprite); +} + +void SlideOverlayButton::viewRemoved(const UnoViewSharedPtr& rView) +{ + std::erase_if(maViews, [&rView](const ViewsVecT::value_type& cp) { return rView == cp.first; }); +} + +void SlideOverlayButton::viewChanged(const UnoViewSharedPtr& rView) +{ + // find entry corresponding to modified view + ViewsVecT::iterator aModifiedEntry( + std::find_if(maViews.begin(), maViews.end(), + [&rView](const ViewsVecT::value_type& cp) { return rView == cp.first; })); + + assert(aModifiedEntry != maViews.end()); + if (aModifiedEntry == maViews.end()) + return; + + if (aModifiedEntry->second) + aModifiedEntry->second->movePixel(calcSpritePos(aModifiedEntry->first)); +} + +void SlideOverlayButton::viewsChanged() +{ + // reposition sprites on all views + for (const auto& rView : maViews) + { + if (rView.second) + rView.second->movePixel(calcSpritePos(rView.first)); + } +} + +bool SlideOverlayButton::handleMousePressed(const css::awt::MouseEvent& /*e*/) { return false; } + +bool SlideOverlayButton::handleMouseReleased(const css::awt::MouseEvent& e) +{ + css::uno::Reference<css::presentation::XSlideShowView> view(e.Source, + css::uno::UNO_QUERY_THROW); + const basegfx::B2DPoint btnPnt( + view->getCanvasArea().X + std::min(view->getCanvasArea().Width, mpPosition.X), + view->getCanvasArea().Y + + std::max(sal_Int32(0), view->getCanvasArea().Height - mxIconBitmap->getSize().Height + - mpPosition.Y)); + const basegfx::B2DPoint clickPnt + = mrEventMultiplexer.toNormalPoint(e.Source, basegfx::B2DPoint(e.X, e.Y)); + if (clickPnt.getX() > btnPnt.getX() + && clickPnt.getX() < btnPnt.getX() + mxIconBitmap->getSize().Width + && clickPnt.getY() > btnPnt.getY() + && clickPnt.getY() < btnPnt.getY() + mxIconBitmap->getSize().Height) + { + mClickHandler(clickPnt); + return true; + } + return false; +} + +bool SlideOverlayButton::handleMouseDragged(const css::awt::MouseEvent& /*e*/) { return false; } + +bool SlideOverlayButton::handleMouseMoved(const css::awt::MouseEvent& /*e*/) { return false; } + +} // namespace slideshow::internal + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |