Simplified event based Drag API for wxDataViewCtrl

[wxWidgets.git] / include / wx / window.h

diff --git a/include/wx/window.h b/include/wx/window.h
index fc3f46dbc0d60870762c2b3b3f00bcc64d3c1e0b..04b443a1a46bb4c71f39b116bc51d1aea6172c18 100644 (file)
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -131,6 +131,12 @@ enum wxShowEffect
     wxSHOW_EFFECT_MAX
 };
 
+// flags for SendSizeEvent()
+enum
+{
+    wxSEND_EVENT_POST = 1
+};
+
 // ----------------------------------------------------------------------------
 // (pseudo)template list classes
 // ----------------------------------------------------------------------------
@@ -193,7 +199,7 @@ public:
     bool DestroyChildren();
 
         // is the window being deleted?
-    bool IsBeingDeleted() const { return m_isBeingDeleted; }
+    bool IsBeingDeleted() const;
 
     // window attributes
     // -----------------
@@ -528,8 +534,35 @@ public:
     // stretch over several lines). Parameter availableOtherDir
     // tells the item how much more space there is available in the opposite
     // direction (-1 if unknown).
-    virtual bool InformFirstDirection( int WXUNUSED(direction), int WXUNUSED(size), int WXUNUSED(availableOtherDir) )
-    { return false; }
+    virtual bool
+    InformFirstDirection(int WXUNUSED(direction),
+                         int WXUNUSED(size),
+                         int WXUNUSED(availableOtherDir))
+    {
+        return false;
+    }
+
+    // sends a size event to the window using its current size -- this has an
+    // effect of refreshing the window layout
+    //
+    // by default the event is sent, i.e. processed immediately, but if flags
+    // value includes wxSEND_EVENT_POST then it's posted, i.e. only schedule
+    // for later processing
+    virtual void SendSizeEvent(int flags = 0);
+
+    // this is a safe wrapper for GetParent()->SendSizeEvent(): it checks that
+    // we have a parent window and it's not in process of being deleted
+    //
+    // this is used by controls such as tool/status bars changes to which must
+    // also result in parent re-layout
+    void SendSizeEventToParent(int flags = 0);
+
+    // this is a more readable synonym for SendSizeEvent(wxSEND_EVENT_POST)
+    void PostSizeEvent() { SendSizeEvent(wxSEND_EVENT_POST); }
+
+    // this is the same as SendSizeEventToParent() but using PostSizeEvent()
+    void PostSizeEventToParent() { SendSizeEventToParent(wxSEND_EVENT_POST); }
+
 
     // window state
     // ------------
@@ -1004,8 +1037,8 @@ public:
         // font
     virtual void GetTextExtent(const wxString& string,
                                int *x, int *y,
-                               int *descent = (int *) NULL,
-                               int *externalLeading = (int *) NULL,
+                               int *descent = NULL,
+                               int *externalLeading = NULL,
                                const wxFont *theFont = (const wxFont *) NULL)
                                const = 0;
 
@@ -1108,7 +1141,7 @@ public:
 
         // scroll window to the specified position
     virtual void ScrollWindow( int dx, int dy,
-                               const wxRect* rect = (wxRect *) NULL ) = 0;
+                               const wxRect* rect = NULL ) = 0;
 
         // scrolls window by line/page: note that not all controls support this
         //
@@ -1175,16 +1208,20 @@ public:
 #if wxUSE_TOOLTIPS
         // the easiest way to set a tooltip for a window is to use this method
     void SetToolTip( const wxString &tip );
-        // attach a tooltip to the window
+        // attach a tooltip to the window, pointer can be NULL to remove
+        // existing tooltip
     void SetToolTip( wxToolTip *tip ) { DoSetToolTip(tip); }
+        // more readable synonym for SetToolTip(NULL)
+    void UnsetToolTip() { SetToolTip(NULL); }
         // get the associated tooltip or NULL if none
     wxToolTip* GetToolTip() const { return m_tooltip; }
-    wxString GetToolTipText() const ;
-#else
+    wxString GetToolTipText() const;
+#else // !wxUSE_TOOLTIPS
         // make it much easier to compile apps in an environment
         // that doesn't support tooltips, such as PocketPC
-    inline void SetToolTip( const wxString & WXUNUSED(tip) ) {}
-#endif // wxUSE_TOOLTIPS
+    void SetToolTip(const wxString & WXUNUSED(tip)) { }
+    void UnsetToolTip() { }
+#endif // wxUSE_TOOLTIPS/!wxUSE_TOOLTIPS
 
     // drag and drop
     // -------------
@@ -1193,6 +1230,16 @@ public:
         // NULL; it's owned by the window and will be deleted by it)
     virtual void SetDropTarget( wxDropTarget *dropTarget ) = 0;
     virtual wxDropTarget *GetDropTarget() const { return m_dropTarget; }
+
+    // Accept files for dragging
+    virtual void DragAcceptFiles(bool accept)
+#ifdef __WXMSW__
+    // it does have common implementation but not for MSW which has its own
+    // native version of it
+    = 0
+#endif // __WXMSW__
+    ;
+
 #endif // wxUSE_DRAG_AND_DROP
 
     // constraints and sizers
@@ -1604,8 +1651,9 @@ private:
     void NotifyWindowOnEnableChange(bool enabled);
 
 #if wxUSE_MENUS
-    // temporary event handler used by GetPopupMenuSelectionFromUser()
+    // temporary event handlers used by GetPopupMenuSelectionFromUser()
     void InternalOnPopupMenu(wxCommandEvent& event);
+    void InternalOnPopupMenuUpdate(wxUpdateUIEvent& event);
 
     // implementation of the public GetPopupMenuSelectionFromUser() method
     int DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y);
@@ -1743,7 +1791,7 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size)
 
 inline wxWindow *wxWindowBase::GetGrandParent() const
 {
-    return m_parent ? m_parent->GetParent() : (wxWindow *)NULL;
+    return m_parent ? m_parent->GetParent() : NULL;
 }
 
 // ----------------------------------------------------------------------------