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