Quelle  waitsymbol.hxx   Sprache: C

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#ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_WAITSYMBOL_HXX
#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_WAITSYMBOL_HXX

#include <com/sun/star/rendering/XBitmap.hpp>
#include <cppcanvas/sprite.hxx>

#include <vieweventhandler.hxx>
#include <screenupdater.hxx>
#include <eventmultiplexer.hxx>
#include <unoview.hxx>

#include <memory>
#include <vector>

namespace slideshow::internal {

class EventMultiplexer;
typedef std::shared_ptr<class WaitSymbol> WaitSymbolSharedPtr;

/// On-screen 'hour glass' for when slideshow is unresponsive
class WaitSymbol : public ViewEventHandler
{
public:
    WaitSymbol(const WaitSymbol&) = delete;
    WaitSymbol& operator=(const WaitSymbol&) = delete;

    static WaitSymbolSharedPtr create( const css::uno::Reference<css::rendering::XBitmap>&&nbsp;xBitmap,
                                       ScreenUpdater&                               rScreenUpdater,
                                       EventMultiplexer&                            rEventMultiplexer,
                                       const UnoViewContainer&                      rViewContainer );

    /** Shows the wait symbol.
     */
    void show() { setVisible(true); }

    /** Hides the wait symbol.
     */
    void hide() { setVisible(false); }

private:
    WaitSymbol( css::uno::Reference<css::rendering::XBitmap> xBitmap,
                ScreenUpdater&                               rScreenUpdater,
                const UnoViewContainer&                      rViewContainer );

    // ViewEventHandler
    virtual void viewAdded( const UnoViewSharedPtr& rView ) override;
    virtual void viewRemoved( const UnoViewSharedPtr& rView ) override;
    virtual void viewChanged( const UnoViewSharedPtr& rView ) override;
    virtual void viewsChanged() override;

    void setVisible( const bool bVisible );
    ::basegfx::B2DPoint calcSpritePos( UnoViewSharedPtr const & rView ) const;

    typedef ::std::vector<
        ::std::pair<UnoViewSharedPtr,
                    cppcanvas::CustomSpriteSharedPtr> > ViewsVecT;

    css::uno::Reference<css::rendering::XBitmap>  mxBitmap;

    ViewsVecT                                  maViews;
    ScreenUpdater&                             mrScreenUpdater;
    bool                                       mbVisible;
};

} // namespace presentation::internal

#endif

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