sdext/source/presenter/PresenterSlidePreview.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERSLIDEPREVIEW_HXX
  21 #define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERSLIDEPREVIEW_HXX
  22
  23 #include "PresenterController.hxx"
  24
  25 #include <boost/noncopyable.hpp>
  26 #include <com/sun/star/awt/XBitmap.hpp>
  27 #include <com/sun/star/awt/XDisplayBitmap.hpp>
  28 #include <com/sun/star/awt/XPaintListener.hpp>
  29 #include <com/sun/star/awt/XWindowListener.hpp>
  30 #include <com/sun/star/drawing/XDrawPage.hpp>
  31 #include <com/sun/star/drawing/XDrawView.hpp>
  32 #include <com/sun/star/drawing/XSlideRenderer.hpp>
  33 #include <com/sun/star/drawing/framework/XPane.hpp>
  34 #include <com/sun/star/drawing/framework/XView.hpp>
  35 #include <com/sun/star/lang/DisposedException.hpp>
  36 #include <com/sun/star/uno/XComponentContext.hpp>
  37 #include <cppuhelper/basemutex.hxx>
  38 #include <cppuhelper/compbase4.hxx>
  39 #include <rtl/ref.hxx>
  40
  41 namespace sdext { namespace presenter {
  42
  43 namespace {
  44     typedef ::cppu::WeakComponentImplHelper4 <
  45         css::drawing::framework::XView,
  46         css::drawing::XDrawView,
  47         css::awt::XPaintListener,
  48         css::awt::XWindowListener
  49     > PresenterSlidePreviewInterfaceBase;
  50 }
  51
  52 /** Static preview of a slide.  Typically used for the preview of the next
  53     slide.
  54     This implementation shows a preview of the slide given to the
  55     setCurrentSlide.  For showing the next slide the PresenterViewFactory
  56     uses a derived class that overrides the setCurrentSlide() method.
  57 */
  58 class PresenterSlidePreview
  59     : private ::boost::noncopyable,
  60       private ::cppu::BaseMutex,
  61       public PresenterSlidePreviewInterfaceBase
  62 {
  63 public:
  64     PresenterSlidePreview (
  65         const css::uno::Reference<css::uno::XComponentContext>& rxContext,
  66         const css::uno::Reference<css::drawing::framework::XResourceId>& rxViewId,
  67         const css::uno::Reference<css::drawing::framework::XPane>& rxAnchorPane,
  68         const ::rtl::Reference<PresenterController>& rpPresenterController);
  69     virtual ~PresenterSlidePreview();
  70     virtual void SAL_CALL disposing() SAL_OVERRIDE;
  71
  72     // XResourceId
  73
  74     virtual css::uno::Reference<css::drawing::framework::XResourceId> SAL_CALL getResourceId()
  75         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  76
  77     virtual sal_Bool SAL_CALL isAnchorOnly()
  78         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  79
  80     // XWindowListener
  81
  82     virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent)
  83         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  84
  85     virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent)
  86         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  87
  88     virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent)
  89         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  90
  91     virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent)
  92         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  93
  94     // XPaintListener
  95
  96     virtual void SAL_CALL windowPaint (const css::awt::PaintEvent& rEvent)
  97         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  98
  99     // lang::XEventListener
 100     virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent)
 101         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 102
 103     // XDrawView
 104
 105     virtual void SAL_CALL setCurrentPage (
 106         const css::uno::Reference<css::drawing::XDrawPage>& rxSlide)
 107         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 108
 109     virtual css::uno::Reference<css::drawing::XDrawPage> SAL_CALL getCurrentPage()
 110         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
 111
 112 protected:
 113     ::rtl::Reference<PresenterController> mpPresenterController;
 114
 115 private:
 116     css::uno::Reference<css::drawing::framework::XPane> mxPane;
 117     css::uno::Reference<css::drawing::framework::XResourceId> mxViewId;
 118     css::uno::Reference<css::drawing::XSlideRenderer> mxPreviewRenderer;
 119
 120     /** This Image holds the preview of the current slide.  After resize
 121         requests the image may be empty.  This results eventually in a call
 122         to ProvideSlide() in order to created a preview in the correct new
 123         size.
 124     */
 125     css::uno::Reference<css::rendering::XBitmap> mxPreview;
 126     boost::shared_ptr<PresenterBitmapContainer> mpBitmaps;
 127
 128     /**  The current slide for which a preview is displayed.  This may or
 129         may not be the same as the current slide of the PresenterView.
 130     */
 131     css::uno::Reference<css::drawing::XDrawPage> mxCurrentSlide;
 132     double mnSlideAspectRatio;
 133
 134     css::uno::Reference<css::awt::XWindow> mxWindow;
 135     css::uno::Reference<css::rendering::XCanvas> mxCanvas;
 136
 137     /** Set the given slide as the current slide of the called PresenterSlidePreview
 138         object.
 139     */
 140     void SetSlide (const css::uno::Reference<css::drawing::XDrawPage>& rxPage);
 141
 142     /** Paint the preview of the current slide centered in the window of the
 143         anchor pane.
 144     */
 145     void Paint (const css::awt::Rectangle& rBoundingBox);
 146
 147     /** React to a resize of the anchor pane.
 148     */
 149     void Resize();
 150
 151     /** This method throws a DisposedException when the object has already been
 152         disposed.
 153     */
 154     void ThrowIfDisposed() throw (css::lang::DisposedException);
 155 };
 156
 157 } } // end of namespace ::sd::presenter
 158
 159 #endif
 160
 161 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */