slideshow/source/engine/waitsymbol.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_WAITSYMBOL_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_ENGINE_WAITSYMBOL_HXX
  22
  23 #include <com/sun/star/rendering/XBitmap.hpp>
  24 #include <cppcanvas/sprite.hxx>
  25
  26 #include <vieweventhandler.hxx>
  27 #include <screenupdater.hxx>
  28 #include <eventmultiplexer.hxx>
  29 #include <unoview.hxx>
  30
  31 #include <memory>
  32 #include <vector>
  33
  34 namespace slideshow::internal {
  35
  36 class EventMultiplexer;
  37 typedef std::shared_ptr<class WaitSymbol> WaitSymbolSharedPtr;
  38
  39 /// On-screen 'hour glass' for when slideshow is unresponsive
  40 class WaitSymbol : public ViewEventHandler
  41 {
  42 public:
  43     WaitSymbol(const WaitSymbol&) = delete;
  44     WaitSymbol& operator=(const WaitSymbol&) = delete;
  45
  46     static WaitSymbolSharedPtr create( const css::uno::Reference<css::rendering::XBitmap>& xBitmap,
  47                                        ScreenUpdater&                               rScreenUpdater,
  48                                        EventMultiplexer&                            rEventMultiplexer,
  49                                        const UnoViewContainer&                      rViewContainer );
  50
  51     /** Shows the wait symbol.
  52      */
  53     void show() { setVisible(true); }
  54
  55     /** Hides the wait symbol.
  56      */
  57     void hide() { setVisible(false); }
  58
  59 private:
  60     WaitSymbol( css::uno::Reference<css::rendering::XBitmap> xBitmap,
  61                 ScreenUpdater&                               rScreenUpdater,
  62                 const UnoViewContainer&                      rViewContainer );
  63
  64     // ViewEventHandler
  65     virtual void viewAdded( const UnoViewSharedPtr& rView ) override;
  66     virtual void viewRemoved( const UnoViewSharedPtr& rView ) override;
  67     virtual void viewChanged( const UnoViewSharedPtr& rView ) override;
  68     virtual void viewsChanged() override;
  69
  70     void setVisible( const bool bVisible );
  71     ::basegfx::B2DPoint calcSpritePos( UnoViewSharedPtr const & rView ) const;
  72
  73     typedef ::std::vector<
  74         ::std::pair<UnoViewSharedPtr,
  75                     cppcanvas::CustomSpriteSharedPtr> > ViewsVecT;
  76
  77     css::uno::Reference<css::rendering::XBitmap>  mxBitmap;
  78
  79     ViewsVecT                                  maViews;
  80     ScreenUpdater&                             mrScreenUpdater;
  81     bool                                       mbVisible;
  82 };
  83
  84 } // namespace presentation::internal
  85
  86 #endif
  87
  88 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */