]> git.saurik.com Git - wxWidgets.git/blobdiff - include/wx/containr.h
assert that wxRound() argument is in the supported range
[wxWidgets.git] / include / wx / containr.h
index 551c7c63f1aca18cd1b2cc1fa642311f8f07be8f..375caff127dec91b01a65a124a0d4f3898fa2383 100644 (file)
 
 #include "wx/defs.h"
 
-#ifdef wxHAS_NATIVE_TAB_TRAVERSAL
-
-#define WX_DECLARE_CONTROL_CONTAINER() \
-    virtual bool AcceptsFocus() const { return false; } \
-    void SetFocusIgnoringChildren() { SetFocus(); }
-
-#define WX_INIT_CONTROL_CONTAINER()
-#define WX_EVENT_TABLE_CONTROL_CONTAINER(classname)
-#define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename)
-
-#else // !wxHAS_NATIVE_TAB_TRAVERSAL
-
-class WXDLLEXPORT wxFocusEvent;
-class WXDLLEXPORT wxNavigationKeyEvent;
 class WXDLLEXPORT wxWindow;
 class WXDLLEXPORT wxWindowBase;
 
@@ -42,15 +28,131 @@ class WXDLLEXPORT wxWindowBase;
  */
 
 // ----------------------------------------------------------------------------
-// wxControlContainer
+// wxControlContainerBase: common part used in both native and generic cases
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxControlContainer
+class WXDLLEXPORT wxControlContainerBase
 {
 public:
-    // ctors and such
-    wxControlContainer(wxWindow *winParent = NULL);
-    void SetContainerWindow(wxWindow *winParent) { m_winParent = winParent; }
+    // default ctor, SetContainerWindow() must be called later
+    wxControlContainerBase()
+    {
+        m_winParent = NULL;
+
+        // do accept focus initially, we'll stop doing it if/when any children
+        // are added
+        m_acceptsFocus = true;
+    }
+
+    void SetContainerWindow(wxWindow *winParent)
+    {
+        wxASSERT_MSG( !m_winParent, _T("shouldn't be called twice") );
+
+        m_winParent = winParent;
+    }
+
+    // should be called when we decide that we should [stop] accepting focus
+    void SetCanFocus(bool acceptsFocus);
+
+    // returns whether we should accept focus ourselves or not
+    bool AcceptsFocus() const { return m_acceptsFocus; }
+
+    // call this when the number of children of the window changes
+    void UpdateCanFocus() { SetCanFocus(ShouldAcceptFocus()); }
+
+protected:
+    // return true if we should be focusable
+    bool ShouldAcceptFocus() const;
+
+    // the parent window we manage the children for
+    wxWindow *m_winParent;
+
+private:
+    // value returned by AcceptsFocus(), should be changed using SetCanFocus()
+    // only
+    bool m_acceptsFocus;
+};
+
+// common part of WX_DECLARE_CONTROL_CONTAINER in the native and generic cases,
+// it should be used in the wxWindow-derived class declaration
+#define WX_DECLARE_CONTROL_CONTAINER_BASE()                                   \
+public:                                                                       \
+    virtual bool AcceptsFocus() const;                                        \
+    virtual void AddChild(wxWindowBase *child);                               \
+    virtual void RemoveChild(wxWindowBase *child);                            \
+    void SetFocusIgnoringChildren();                                          \
+    void AcceptFocus(bool acceptFocus)                                        \
+    {                                                                         \
+        m_container.SetCanFocus(acceptFocus);                                 \
+    }                                                                         \
+                                                                              \
+protected:                                                                    \
+    wxControlContainer m_container
+
+// this macro must be used in the derived class ctor
+#define WX_INIT_CONTROL_CONTAINER() \
+    m_container.SetContainerWindow(this)
+
+// common part of WX_DELEGATE_TO_CONTROL_CONTAINER in the native and generic
+// cases, must be used in the wxWindow-derived class implementation
+#define WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename)            \
+    void classname::AddChild(wxWindowBase *child)                             \
+    {                                                                         \
+        basename::AddChild(child);                                            \
+                                                                              \
+        m_container.UpdateCanFocus();                                         \
+    }                                                                         \
+                                                                              \
+    bool classname::AcceptsFocus() const                                      \
+    {                                                                         \
+        return m_container.AcceptsFocus();                                    \
+    }
+
+
+#ifdef wxHAS_NATIVE_TAB_TRAVERSAL
+
+// ----------------------------------------------------------------------------
+// wxControlContainer for native TAB navigation
+// ----------------------------------------------------------------------------
+
+// this must be a real class as we forward-declare it elsewhere
+class WXDLLEXPORT wxControlContainer : public wxControlContainerBase
+{
+};
+
+#define WX_EVENT_TABLE_CONTROL_CONTAINER(classname)
+
+#define WX_DECLARE_CONTROL_CONTAINER WX_DECLARE_CONTROL_CONTAINER_BASE
+
+#define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename)                 \
+    WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename)                \
+                                                                              \
+    void classname::RemoveChild(wxWindowBase *child)                          \
+    {                                                                         \
+        basename::RemoveChild(child);                                         \
+                                                                              \
+        m_container.UpdateCanFocus();                                         \
+    }                                                                         \
+                                                                              \
+    void classname::SetFocusIgnoringChildren()                                \
+    {                                                                         \
+        SetFocus();                                                           \
+    }
+
+#else // !wxHAS_NATIVE_TAB_TRAVERSAL
+
+class WXDLLEXPORT wxFocusEvent;
+class WXDLLEXPORT wxNavigationKeyEvent;
+
+// ----------------------------------------------------------------------------
+// wxControlContainer for TAB navigation implemented in wx itself
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxControlContainer : public wxControlContainerBase
+{
+public:
+    // default ctor, SetContainerWindow() must be called later
+    wxControlContainer();
 
     // the methods to be called from the window event handlers
     void HandleOnNavigationKey(wxNavigationKeyEvent& event);
@@ -61,9 +163,6 @@ public:
     // the focus and the default processing should take place
     bool DoSetFocus();
 
-    // can our child get the focus?
-    bool AcceptsFocus() const;
-
     // called from OnChildFocus() handler, i.e. when one of our (grand)
     // children gets the focus
     void SetLastFocus(wxWindow *win);
@@ -72,9 +171,6 @@ protected:
     // set the focus to the child which had it the last time
     bool SetFocusToChild();
 
-    // the parent window we manage the children for
-    wxWindow *m_winParent;
-
     // the child which had the focus last time this panel was activated
     wxWindow *m_winLastFocused;
 
@@ -93,22 +189,14 @@ extern bool wxSetFocusToChild(wxWindow *win, wxWindow **child);
 // ----------------------------------------------------------------------------
 
 // declare the methods to be forwarded
-#define WX_DECLARE_CONTROL_CONTAINER() \
-public: \
-    void OnNavigationKey(wxNavigationKeyEvent& event); \
-    void OnFocus(wxFocusEvent& event); \
-    virtual void OnChildFocus(wxChildFocusEvent& event); \
-    virtual void SetFocus(); \
-    virtual void SetFocusIgnoringChildren(); \
-    virtual void RemoveChild(wxWindowBase *child); \
-    virtual bool AcceptsFocus() const; \
-\
-protected: \
-    wxControlContainer m_container
-
-// this macro must be used in the derived class ctor
-#define WX_INIT_CONTROL_CONTAINER() \
-    m_container.SetContainerWindow(this)
+#define WX_DECLARE_CONTROL_CONTAINER()                                        \
+    WX_DECLARE_CONTROL_CONTAINER_BASE();                                      \
+                                                                              \
+public:                                                                       \
+    void OnNavigationKey(wxNavigationKeyEvent& event);                        \
+    void OnFocus(wxFocusEvent& event);                                        \
+    virtual void OnChildFocus(wxChildFocusEvent& event);                      \
+    virtual void SetFocus()
 
 // implement the event table entries for wxControlContainer
 #define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) \
@@ -117,43 +205,43 @@ protected: \
     EVT_NAVIGATION_KEY(classname::OnNavigationKey)
 
 // implement the methods forwarding to the wxControlContainer
-#define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename)  \
-void classname::OnNavigationKey( wxNavigationKeyEvent& event ) \
-{ \
-    m_container.HandleOnNavigationKey(event); \
-} \
- \
-void classname::RemoveChild(wxWindowBase *child) \
-{ \
-    m_container.HandleOnWindowDestroy(child); \
- \
-    basename::RemoveChild(child); \
-} \
- \
-void classname::SetFocus() \
-{ \
-    if ( !m_container.DoSetFocus() ) \
-        basename::SetFocus(); \
-} \
- \
-void classname::SetFocusIgnoringChildren() \
-{ \
-        basename::SetFocus(); \
-} \
- \
-void classname::OnChildFocus(wxChildFocusEvent& event) \
-{ \
-    m_container.SetLastFocus(event.GetWindow()); \
-} \
- \
-void classname::OnFocus(wxFocusEvent& event) \
-{ \
-    m_container.HandleOnFocus(event); \
-} \
-bool classname::AcceptsFocus() const \
-{ \
-    return m_container.AcceptsFocus(); \
-}
+#define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename)                 \
+    WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename)                \
+                                                                              \
+    void classname::RemoveChild(wxWindowBase *child)                          \
+    {                                                                         \
       m_container.HandleOnWindowDestroy(child);                             \
+                                                                              \
+        basename::RemoveChild(child);                                         \
+                                                                              \
       m_container.UpdateCanFocus();                                         \
+    }                                                                         \
+                                                                              \
   void classname::OnNavigationKey( wxNavigationKeyEvent& event )            \
+    {                                                                         \
+        m_container.HandleOnNavigationKey(event);                             \
+    }                                                                         \
+                                                                              \
+    void classname::SetFocus()                                                \
   {                                                                         \
+        if ( !m_container.DoSetFocus() )                                      \
+            basename::SetFocus();                                             \
+    }                                                                         \
+                                                                              \
   void classname::SetFocusIgnoringChildren()                                \
+    {                                                                         \
+        basename::SetFocus();                                                 \
+    }                                                                         \
+                                                                              \
   void classname::OnChildFocus(wxChildFocusEvent& event)                    \
+    {                                                                         \
+        m_container.SetLastFocus(event.GetWindow());                          \
+    }                                                                         \
+                                                                              \
+    void classname::OnFocus(wxFocusEvent& event)                              \
+    {                                                                         \
+        m_container.HandleOnFocus(event);                                     \
+    } 
 
 #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL