///////////////////////////////////////////////////////////////////////////////
// Name: wx/containr.h
-// Purpose: wxControlContainer class declration: a "mix-in" class which
-// implements the TAB navigation between the controls
+// Purpose: wxControlContainer and wxNavigationEnabled declarations
// Author: Vadim Zeitlin
// Modified by:
// Created: 06.08.01
// RCS-ID: $Id$
-// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Copyright: (c) 2001, 2011 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#include "wx/defs.h"
-class WXDLLEXPORT wxWindow;
-class WXDLLEXPORT wxWindowBase;
+class WXDLLIMPEXP_FWD_CORE wxWindow;
+class WXDLLIMPEXP_FWD_CORE wxWindowBase;
/*
- Implementation note: wxControlContainer is not a real mix-in but rather
- a class meant to be aggregated with (and not inherited from). Although
- logically it should be a mix-in, doing it like this has no advantage from
- the point of view of the existing code but does have some problems (we'd
- need to play tricks with event handlers which may be difficult to do
- safely). The price we pay for this simplicity is the ugly macros below.
+ This header declares wxControlContainer class however it's not a real
+ container of controls but rather just a helper used to implement TAB
+ navigation among the window children. You should rarely need to use it
+ directly, derive from the documented public wxNavigationEnabled<> class to
+ implement TAB navigation in a custom composite window.
*/
// ----------------------------------------------------------------------------
// wxControlContainerBase: common part used in both native and generic cases
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxControlContainerBase
+class WXDLLIMPEXP_CORE wxControlContainerBase
{
public:
// default ctor, SetContainerWindow() must be called later
// do accept focus initially, we'll stop doing it if/when any children
// are added
m_acceptsFocus = true;
+ m_inSetFocus = false;
+ m_winLastFocused = NULL;
}
+ virtual ~wxControlContainerBase() {}
void SetContainerWindow(wxWindow *winParent)
{
- wxASSERT_MSG( !m_winParent, _T("shouldn't be called twice") );
+ wxASSERT_MSG( !m_winParent, wxT("shouldn't be called twice") );
m_winParent = winParent;
}
+ // should be called from SetFocus(), returns false if we did nothing with
+ // the focus and the default processing should take place
+ bool DoSetFocus();
+
// 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()); }
+ // returns whether we or one of our children accepts focus: we always do
+ // because if we don't have any focusable children it probably means that
+ // we're not being used as a container at all (think of wxGrid or generic
+ // wxListCtrl) and so should get focus for ourselves
+ bool AcceptsFocusRecursively() const { return true; }
+
+ // this is used to determine whether we can accept focus when Tab or
+ // another navigation key is pressed -- we alsways can, for the same reason
+ // as mentioned above for AcceptsFocusRecursively()
+ bool AcceptsFocusFromKeyboard() const { return true; }
+
+ // Call this when the number of children of the window changes.
+ // If we have any children, this panel (used just as container for
+ // them) shouldn't get focus for itself.
+ void UpdateCanFocus() { SetCanFocus(!HasAnyFocusableChildren()); }
protected:
- // return true if we should be focusable
- bool ShouldAcceptFocus() const;
+ // set the focus to the child which had it the last time
+ virtual bool SetFocusToChild();
+
+ // return true if we have any children accepting focus
+ bool HasAnyFocusableChildren() const;
// 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;
+
private:
// value returned by AcceptsFocus(), should be changed using SetCanFocus()
// only
bool m_acceptsFocus;
+
+ // a guard against infinite recursion
+ bool m_inSetFocus;
+};
+
+#ifdef wxHAS_NATIVE_TAB_TRAVERSAL
+
+// ----------------------------------------------------------------------------
+// wxControlContainer for native TAB navigation
+// ----------------------------------------------------------------------------
+
+// this must be a real class as we forward-declare it elsewhere
+class WXDLLIMPEXP_CORE wxControlContainer : public wxControlContainerBase
+{
+protected:
+ // set the focus to the child which had it the last time
+ virtual bool SetFocusToChild();
+};
+
+#else // !wxHAS_NATIVE_TAB_TRAVERSAL
+
+class WXDLLIMPEXP_FWD_CORE wxFocusEvent;
+class WXDLLIMPEXP_FWD_CORE wxNavigationKeyEvent;
+
+// ----------------------------------------------------------------------------
+// wxControlContainer for TAB navigation implemented in wx itself
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE 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);
+ void HandleOnFocus(wxFocusEvent& event);
+ void HandleOnWindowDestroy(wxWindowBase *child);
+
+ // called from OnChildFocus() handler, i.e. when one of our (grand)
+ // children gets the focus
+ void SetLastFocus(wxWindow *win);
+
+protected:
+
+ wxDECLARE_NO_COPY_CLASS(wxControlContainer);
+};
+
+#endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL
+
+// this function is for wxWidgets internal use only
+extern bool wxSetFocusToChild(wxWindow *win, wxWindow **child);
+
+// ----------------------------------------------------------------------------
+// wxNavigationEnabled: Derive from this class to support keyboard navigation
+// among window children in a wxWindow-derived class. The details of this class
+// don't matter, you just need to derive from it to make navigation work.
+// ----------------------------------------------------------------------------
+
+// The template parameter W must be a wxWindow-derived class.
+template <class W>
+class wxNavigationEnabled : public W
+{
+public:
+ typedef W BaseWindowClass;
+
+ wxNavigationEnabled()
+ {
+ m_container.SetContainerWindow(this);
+
+#ifndef wxHAS_NATIVE_TAB_TRAVERSAL
+ Connect(wxEVT_NAVIGATION_KEY,
+ wxNavigationKeyEventHandler(wxNavigationEnabled::OnNavigationKey));
+
+ Connect(wxEVT_SET_FOCUS,
+ wxFocusEventHandler(wxNavigationEnabled::OnFocus));
+
+ Connect(wxEVT_CHILD_FOCUS,
+ wxChildFocusEventHandler(wxNavigationEnabled::OnChildFocus));
+#endif // !wxHAS_NATIVE_TAB_TRAVERSAL
+ }
+
+ virtual bool AcceptsFocus() const
+ {
+ return m_container.AcceptsFocus();
+ }
+
+ virtual bool AcceptsFocusRecursively() const
+ {
+ return m_container.AcceptsFocusRecursively();
+ }
+
+ virtual bool AcceptsFocusFromKeyboard() const
+ {
+ return m_container.AcceptsFocusFromKeyboard();
+ }
+
+ virtual void AddChild(wxWindowBase *child)
+ {
+ BaseWindowClass::AddChild(child);
+
+ m_container.UpdateCanFocus();
+ }
+
+ virtual void RemoveChild(wxWindowBase *child)
+ {
+#ifndef wxHAS_NATIVE_TAB_TRAVERSAL
+ m_container.HandleOnWindowDestroy(child);
+#endif // !wxHAS_NATIVE_TAB_TRAVERSAL
+
+ BaseWindowClass::RemoveChild(child);
+
+ m_container.UpdateCanFocus();
+ }
+
+ virtual void SetFocus()
+ {
+ if ( !m_container.DoSetFocus() )
+ BaseWindowClass::SetFocus();
+ }
+
+ void SetFocusIgnoringChildren()
+ {
+ BaseWindowClass::SetFocus();
+ }
+
+ void AcceptFocus(bool acceptFocus)
+ {
+ m_container.SetCanFocus(acceptFocus);
+ }
+
+protected:
+#ifndef wxHAS_NATIVE_TAB_TRAVERSAL
+ void OnNavigationKey(wxNavigationKeyEvent& event)
+ {
+ m_container.HandleOnNavigationKey(event);
+ }
+
+ void OnFocus(wxFocusEvent& event)
+ {
+ m_container.HandleOnFocus(event);
+ }
+
+ void OnChildFocus(wxChildFocusEvent& event)
+ {
+ m_container.SetLastFocus(event.GetWindow());
+ event.Skip();
+ }
+#endif // !wxHAS_NATIVE_TAB_TRAVERSAL
+
+ wxControlContainer m_container;
+
+
+ wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxNavigationEnabled, W);
};
+// ----------------------------------------------------------------------------
+// Compatibility macros from now on, do NOT use them and preferably do not even
+// look at them.
+// ----------------------------------------------------------------------------
+
+#ifdef WXWIN_COMPATIBILITY_2_8
+
// 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 bool AcceptsFocusRecursively() const; \
+ virtual bool AcceptsFocusFromKeyboard() const; \
virtual void AddChild(wxWindowBase *child); \
virtual void RemoveChild(wxWindowBase *child); \
+ virtual void SetFocus(); \
void SetFocusIgnoringChildren(); \
void AcceptFocus(bool acceptFocus) \
{ \
m_container.UpdateCanFocus(); \
} \
\
+ bool classname::AcceptsFocusRecursively() const \
+ { \
+ return m_container.AcceptsFocusRecursively(); \
+ } \
+ \
+ void classname::SetFocus() \
+ { \
+ if ( !m_container.DoSetFocus() ) \
+ basename::SetFocus(); \
+ } \
+ \
bool classname::AcceptsFocus() const \
{ \
return m_container.AcceptsFocus(); \
+ } \
+ \
+ bool classname::AcceptsFocusFromKeyboard() const \
+ { \
+ return m_container.AcceptsFocusFromKeyboard(); \
}
#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
\
void classname::SetFocusIgnoringChildren() \
{ \
- SetFocus(); \
+ basename::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);
- void HandleOnFocus(wxFocusEvent& event);
- void HandleOnWindowDestroy(wxWindowBase *child);
-
- // should be called from SetFocus(), returns false if we did nothing with
- // the focus and the default processing should take place
- bool DoSetFocus();
-
- // called from OnChildFocus() handler, i.e. when one of our (grand)
- // children gets the focus
- void SetLastFocus(wxWindow *win);
-
-protected:
- // set the focus to the child which had it the last time
- bool SetFocusToChild();
-
- // the child which had the focus last time this panel was activated
- wxWindow *m_winLastFocused;
-
- // a guard against infinite recursion
- bool m_inSetFocus;
-
- DECLARE_NO_COPY_CLASS(wxControlContainer)
-};
-
-// this function is for wxWidgets internal use only
-extern bool wxSetFocusToChild(wxWindow *win, wxWindow **child);
-
-// ----------------------------------------------------------------------------
-// macros which may be used by the classes wishing to implement TAB navigation
-// among their children
-// ----------------------------------------------------------------------------
-
// declare the methods to be forwarded
#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()
+ virtual void OnChildFocus(wxChildFocusEvent& event)
// implement the event table entries for wxControlContainer
#define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) \
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()); \
+ event.Skip(); \
} \
\
void classname::OnFocus(wxFocusEvent& event) \
{ \
m_container.HandleOnFocus(event); \
- }
+ }
#endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL
+#endif // WXWIN_COMPATIBILITY_2_8
+
#endif // _WX_CONTAINR_H_
projects / wxWidgets.git / blobdiff