Reword the comment again. I forgot to save before committing.

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

diff --git a/include/wx/window.h b/include/wx/window.h
index 17be18c237cffd9dfe2c5039506d82e80c93d646..013426c8f80e1877375d33536654f199091830d7 100644 (file)
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -228,17 +228,21 @@ public:
     void SetId( wxWindowID winid ) { m_windowId = winid; }
     wxWindowID GetId() const { return m_windowId; }
 
-        // returns true if this id value belong to the range reserved for the
-        // auto-generated (by NewControlId()) ids (they're always negative)
-    static bool IsAutoGeneratedId(wxWindowID id);
-
         // generate a unique id (or count of them consecutively), returns a
-        // valid id in IsAutoGeneratedId() range or wxID_NONE if failed
-    static wxWindowID NewControlId(int count = 1);
+        // valid id in the auto-id range or wxID_NONE if failed.  If using
+        // autoid management, it will mark the id as reserved until it is
+        // used (by assigning it to a wxWindowIDRef) or unreserved.
+    static wxWindowID NewControlId(int count = 1)
+    {
+        return wxIdManager::ReserveId(count);
+    }
 
-        // mark an id previously returned by NewControlId() as being unused any
-        // more so that it can be reused again for another control later
-    static void ReleaseControlId(wxWindowID id);
+        // If an ID generated from NewControlId is not assigned to a wxWindowIDRef,
+        // it must be unreserved
+    static void UnreserveControlId(wxWindowID id, int count = 1)
+    {
+        wxIdManager::UnreserveId(id, count);
+    }
 
 
     // moving/resizing
@@ -616,6 +620,11 @@ public:
 
     static wxWindow *DoFindFocus() /* = 0: implement in derived classes */;
 
+        // return true if the window has focus (handles composite windows
+        // correctly - returns true if GetMainWindowOfCompositeControl()
+        // has focus)
+    virtual bool HasFocus() const;
+
         // can this window have focus in principle?
         //
         // the difference between AcceptsFocus[FromKeyboard]() and CanAcceptFocus
@@ -858,13 +867,19 @@ public:
     virtual void ClearBackground();
 
         // freeze the window: don't redraw it until it is thawed
-    virtual void Freeze() { }
+    void Freeze() { if ( !m_freezeCount++ ) DoFreeze(); }
 
         // thaw the window: redraw it after it had been frozen
-    virtual void Thaw() { }
+    void Thaw()
+    {
+        wxASSERT_MSG( m_freezeCount, "Thaw() without matching Freeze()" );
+
+        if ( !--m_freezeCount )
+            DoThaw();
+    }
 
         // return true if window had been frozen and not unthawed yet
-    virtual bool IsFrozen() const { return false; }
+    bool IsFrozen() const { return m_freezeCount != 0; }
 
         // adjust DC for drawing on this window
     virtual void PrepareDC( wxDC & WXUNUSED(dc) ) { }
@@ -1046,9 +1061,8 @@ public:
     // show popup menu at the given position, generate events for the items
     // selected in it
     bool PopupMenu(wxMenu *menu, const wxPoint& pos = wxDefaultPosition)
-        { return DoPopupMenu(menu, pos.x, pos.y); }
-    bool PopupMenu(wxMenu *menu, int x, int y)
-        { return DoPopupMenu(menu, x, y); }
+        { return PopupMenu(menu, pos.x, pos.y); }
+    bool PopupMenu(wxMenu *menu, int x, int y);
 
     // simply return the id of the selected item or wxID_NONE without
     // generating any events
@@ -1351,7 +1365,7 @@ protected:
 
     // the window id - a number which uniquely identifies a window among
     // its siblings unless it is wxID_ANY
-    wxWindowID           m_windowId;
+    wxWindowIDRef        m_windowId;
 
     // the parent window of this window (or NULL) and the list of the children
     // of this window
@@ -1420,10 +1434,6 @@ protected:
     // Layout() window automatically when its size changes?
     bool                 m_autoLayout:1;
 
-    // true if we had automatically allocated the id value for this window
-    // (i.e. wxID_ANY had been passed to the ctor)
-    bool                 m_freeId:1;
-
     // window state
     bool                 m_isShown:1;
     bool                 m_isEnabled:1;
@@ -1564,6 +1574,12 @@ protected:
     // implements the window variants
     virtual void DoSetWindowVariant( wxWindowVariant variant ) ;
 
+
+    // really freeze/thaw the window (should have port-specific implementation)
+    virtual void DoFreeze() { }
+    virtual void DoThaw() { }
+
+
     // Must be called when mouse capture is lost to send
     // wxMouseCaptureLostEvent to windows on capture stack.
     static void NotifyCaptureLost();
@@ -1584,11 +1600,19 @@ private:
 
     // the stack of windows which have captured the mouse
     static struct WXDLLIMPEXP_FWD_CORE wxWindowNext *ms_winCaptureNext;
+
     // the window that currently has mouse capture
     static wxWindow *ms_winCaptureCurrent;
+
     // indicates if execution is inside CaptureMouse/ReleaseMouse
     static bool ms_winCaptureChanging;
 
+
+    // number of Freeze() calls minus the number of Thaw() calls: we're frozen
+    // (i.e. not being updated) if it is positive
+    unsigned int m_freezeCount;
+
+
     DECLARE_ABSTRACT_CLASS(wxWindowBase)
     DECLARE_NO_COPY_CLASS(wxWindowBase)
     DECLARE_EVENT_TABLE()
@@ -1728,8 +1752,8 @@ WXDLLEXPORT wxWindow* wxGetTopLevelParent(wxWindow *win);
 
 #if WXWIN_COMPATIBILITY_2_6
     // deprecated (doesn't start with 'wx' prefix), use wxWindow::NewControlId()
-    wxDEPRECATED( int NewControlId() );
-    inline int NewControlId() { return wxWindowBase::NewControlId(); }
+    wxDEPRECATED( wxWindowID NewControlId() );
+    inline wxWindowID NewControlId() { return wxWindowBase::NewControlId(); }
 #endif // WXWIN_COMPATIBILITY_2_6
 
 #if wxUSE_ACCESSIBILITY