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/* -*- 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)
{
if (mnIgnoreClicksCnt == 0)
{
mnIgnoreClicksCnt = e.ClickCount - 1;
mClickHandler(clickPnt);
}
else
{
mnIgnoreClicksCnt--;
}
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: */
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