include/svx/AccessibleShapeTreeInfo.hxx

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  19
  20 #ifndef INCLUDED_SVX_ACCESSIBLESHAPETREEINFO_HXX
  21 #define INCLUDED_SVX_ACCESSIBLESHAPETREEINFO_HXX
  22
  23 #include <com/sun/star/uno/Reference.hxx>
  24 #include <svx/svxdllapi.h>
  25 #include <vcl/vclptr.hxx>
  26
  27 namespace com::sun::star {
  28     namespace accessibility { class XAccessibleComponent; }
  29     namespace document { class XShapeEventBroadcaster; }
  30     namespace frame { class XController; }
  31 }
  32 namespace vcl { class Window; }
  33
  34 class SdrView;
  35
  36 namespace accessibility {
  37
  38 class IAccessibleViewForwarder;
  39
  40 /** This class bundles all information that is passed down the tree of
  41     accessible shapes so that each shape has access to that info.
  42
  43     There are basically four members that can be set and queried:
  44     <ul>
  45     <li>The model broadcaster is used for getting notified about shape
  46     changes.  Using this broadcaster makes in unnecessary to register at
  47     each shape separately.</li>
  48     <li>The view forwarder is responsible for transformation between
  49     coordinate systems and for providing the visible area both with respect
  50     to a specific window.</li>
  51     <li>The SdrView is used for creating accessible edit engines.</li>
  52     <li>The Window is used for creating accessible edit engines.</li>
  53     </ul>
  54 */
  55 class SVX_DLLPUBLIC AccessibleShapeTreeInfo
  56 {
  57 public:
  58     /** Use this constructor to create an empty object that is filled later
  59         with more meaningful data.
  60     */
  61     AccessibleShapeTreeInfo();
  62
  63     /** Create a copy of the given shape info.
  64         @param rInfo
  65             The shape tree info object to copy.
  66     */
  67     AccessibleShapeTreeInfo (const AccessibleShapeTreeInfo& rInfo);
  68
  69     ~AccessibleShapeTreeInfo();
  70
  71     AccessibleShapeTreeInfo& operator= (const AccessibleShapeTreeInfo& rInfo);
  72
  73     void dispose();
  74
  75     /** Deprecated.  Don't use this method.
  76     */
  77     void SetDocumentWindow (const css::uno::Reference<
  78         css::accessibility::XAccessibleComponent>& rxViewWindow);
  79
  80     /** Deprecated.  Don't use this method.
  81     */
  82     const css::uno::Reference<
  83         css::accessibility::XAccessibleComponent>&
  84         GetDocumentWindow() const { return mxDocumentWindow;}
  85
  86     /** Set a new broadcaster that sends events indicating shape changes.
  87         The broadcaster usually is or belongs to a document model.
  88         @param rxModelBroadcaster
  89             The new broadcaster.  It replaces the current one.  An empty
  90             reference may be passed to unset the broadcaster
  91     */
  92     void SetModelBroadcaster (const css::uno::Reference<
  93         css::document::XShapeEventBroadcaster>& rxModelBroadcaster);
  94
  95     /** Return the current model broadcaster.
  96         @return
  97             The returned reference may be empty if the broadcaster has not
  98             been set or has been set to an empty reference.
  99     */
 100     const css::uno::Reference<
 101         css::document::XShapeEventBroadcaster>&
 102         GetModelBroadcaster() const { return mxModelBroadcaster;}
 103
 104     /** Set the view that will be used to construct SvxTextEditSources which
 105         in turn are used to create accessible edit engines.
 106         @param pView
 107             The new SdrView that replaces the current one.  A NULL pointer
 108             may be passed to unset the view.
 109     */
 110     void SetSdrView (SdrView* pView);
 111
 112     /** Return the current SdrView.
 113         @return
 114             The returned value may be NULL.
 115     */
 116     SdrView* GetSdrView() const { return mpView;}
 117
 118     /** Set a new controller.  This will usually but not necessarily
 119         correspond to the SdrView.
 120         @param rxController
 121             The new controller that replaces the current one.  An empty
 122             reference may be passed to unset the controller.
 123     */
 124     void SetController (const css::uno::Reference<
 125         css::frame::XController>& rxController);
 126
 127     /** Return the currently set controller.
 128         @return
 129             The reference to the currently set controller may be empty.
 130     */
 131     const css::uno::Reference<
 132         css::frame::XController>&
 133         GetController() const { return mxController;}
 134
 135     /** Set the window that is used to construct SvxTextEditSources which in
 136         turn is used to create accessible edit engines.
 137     */
 138     void SetWindow(vcl::Window* pWindow);
 139
 140     /** Return the current Window.
 141         @return
 142             The returned value may be NULL.
 143     */
 144     vcl::Window* GetWindow() const
 145     {
 146         return mpWindow.get();
 147     }
 148
 149     /** The view forwarder allows the transformation between internal
 150         and pixel coordinates and can be asked for the visible area.
 151         @param pViewForwarder
 152             This view forwarder replaces the current one.
 153     */
 154     void SetViewForwarder (const IAccessibleViewForwarder* pViewForwarder);
 155
 156     /** Return the current view forwarder.
 157         @return
 158             The returned pointer may be NULL.
 159     */
 160     const IAccessibleViewForwarder* GetViewForwarder() const { return mpViewForwarder;}
 161
 162 private:
 163     /** Deprecated.
 164     */
 165     css::uno::Reference<
 166         css::accessibility::XAccessibleComponent> mxDocumentWindow;
 167
 168     /** this broadcaster sends events indicating shape changes.
 169         The broadcaster usually is or belongs to a document model.
 170
 171         This once was named mxControllerBroadcaster.
 172     */
 173     css::uno::Reference<
 174         css::document::XShapeEventBroadcaster> mxModelBroadcaster;
 175
 176     /** This view is necessary to construct an SvxTextEditSource which in
 177         turn is used to create an accessible edit engine.
 178     */
 179     SdrView* mpView;
 180
 181     /** The controller is used e.g. for obtaining the selected shapes.
 182     */
 183     css::uno::Reference<
 184         css::frame::XController> mxController;
 185
 186     /** This window is necessary to construct an SvxTextEditSource which in
 187         turn is used to create an accessible edit engine.
 188     */
 189     VclPtr<vcl::Window> mpWindow;
 190
 191     /** The view forwarder allows the transformation between internal
 192         and pixel coordinates and can be asked for the visible area.
 193     */
 194     const IAccessibleViewForwarder* mpViewForwarder;
 195 };
 196
 197 } // end of namespace accessibility
 198
 199 #endif
 200
 201 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */