143 lines
4.6 KiB
C++
143 lines
4.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/containr.h
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// Purpose: wxControlContainer class declration: a "mix-in" class which
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// implements the TAB navigation between the controls
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 06.08.01
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// RCS-ID: $Id: containr.h 50863 2007-12-20 18:32:55Z VS $
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// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_CONTAINR_H_
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#define _WX_CONTAINR_H_
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class WXDLLIMPEXP_FWD_CORE wxFocusEvent;
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class WXDLLIMPEXP_FWD_CORE wxNavigationKeyEvent;
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class WXDLLIMPEXP_FWD_CORE wxWindow;
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class WXDLLIMPEXP_FWD_CORE wxWindowBase;
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/*
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Implementation note: wxControlContainer is not a real mix-in but rather
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a class meant to be agregated with (and not inherited from). Although
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logically it should be a mix-in, doing it like this has no advantage from
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the point of view of the existing code but does have some problems (we'd
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need to play tricks with event handlers which may be difficult to do
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safely). The price we pay for this simplicity is the ugly macros below.
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*/
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// ----------------------------------------------------------------------------
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// wxControlContainer
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxControlContainer
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{
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public:
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// ctors and such
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wxControlContainer(wxWindow *winParent = NULL);
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void SetContainerWindow(wxWindow *winParent) { m_winParent = winParent; }
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// the methods to be called from the window event handlers
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void HandleOnNavigationKey(wxNavigationKeyEvent& event);
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void HandleOnFocus(wxFocusEvent& event);
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void HandleOnWindowDestroy(wxWindowBase *child);
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// should be called from SetFocus(), returns false if we did nothing with
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// the focus and the default processing should take place
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bool DoSetFocus();
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// can our child get the focus?
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bool AcceptsFocus() const;
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// called from OnChildFocus() handler, i.e. when one of our (grand)
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// children gets the focus
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void SetLastFocus(wxWindow *win);
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protected:
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// set the focus to the child which had it the last time
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bool SetFocusToChild();
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// the parent window we manage the children for
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wxWindow *m_winParent;
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// the child which had the focus last time this panel was activated
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wxWindow *m_winLastFocused;
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// a guard against infinite recursion
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bool m_inSetFocus;
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DECLARE_NO_COPY_CLASS(wxControlContainer)
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};
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// this function is for wxWidgets internal use only
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extern bool wxSetFocusToChild(wxWindow *win, wxWindow **child);
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// ----------------------------------------------------------------------------
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// macros which may be used by the classes wishing to implement TAB navigation
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// among their children
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// ----------------------------------------------------------------------------
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// declare the methods to be forwarded
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#define WX_DECLARE_CONTROL_CONTAINER() \
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public: \
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void OnNavigationKey(wxNavigationKeyEvent& event); \
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void OnFocus(wxFocusEvent& event); \
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virtual void OnChildFocus(wxChildFocusEvent& event); \
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virtual void SetFocus(); \
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virtual void SetFocusIgnoringChildren(); \
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virtual void RemoveChild(wxWindowBase *child); \
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virtual bool AcceptsFocus() const; \
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\
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protected: \
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wxControlContainer m_container
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// implement the event table entries for wxControlContainer
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#define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) \
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EVT_SET_FOCUS(classname::OnFocus) \
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EVT_CHILD_FOCUS(classname::OnChildFocus) \
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EVT_NAVIGATION_KEY(classname::OnNavigationKey)
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// implement the methods forwarding to the wxControlContainer
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#define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename) \
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void classname::OnNavigationKey( wxNavigationKeyEvent& event ) \
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{ \
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m_container.HandleOnNavigationKey(event); \
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} \
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\
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void classname::RemoveChild(wxWindowBase *child) \
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{ \
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m_container.HandleOnWindowDestroy(child); \
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\
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basename::RemoveChild(child); \
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} \
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\
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void classname::SetFocus() \
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{ \
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if ( !m_container.DoSetFocus() ) \
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basename::SetFocus(); \
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} \
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\
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void classname::SetFocusIgnoringChildren() \
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{ \
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basename::SetFocus(); \
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} \
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\
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void classname::OnChildFocus(wxChildFocusEvent& event) \
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{ \
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m_container.SetLastFocus(event.GetWindow()); \
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event.Skip(); \
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} \
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\
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void classname::OnFocus(wxFocusEvent& event) \
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{ \
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m_container.HandleOnFocus(event); \
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} \
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bool classname::AcceptsFocus() const \
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{ \
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return m_container.AcceptsFocus(); \
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}
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#endif // _WX_CONTAINR_H_
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