b5dbe15d0b
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47254 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
264 lines
13 KiB
C++
264 lines
13 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/containr.h
|
|
// Purpose: wxControlContainer class declration: a "mix-in" class which
|
|
// implements the TAB navigation between the controls
|
|
// Author: Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 06.08.01
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_CONTAINR_H_
|
|
#define _WX_CONTAINR_H_
|
|
|
|
#include "wx/defs.h"
|
|
|
|
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.
|
|
*/
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxControlContainerBase: common part used in both native and generic cases
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxControlContainerBase
|
|
{
|
|
public:
|
|
// 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; }
|
|
|
|
// 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; }
|
|
|
|
// call this when the number of children of the window changes
|
|
//
|
|
// note that 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 have any children accepting focus
|
|
bool HasAnyFocusableChildren() 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 bool AcceptsFocusRecursively() 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::AcceptsFocusRecursively() const \
|
|
{ \
|
|
return m_container.AcceptsFocusRecursively(); \
|
|
} \
|
|
\
|
|
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 WXDLLIMPEXP_FWD_CORE wxFocusEvent;
|
|
class WXDLLIMPEXP_FWD_CORE 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()
|
|
|
|
// implement the event table entries for wxControlContainer
|
|
#define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) \
|
|
EVT_SET_FOCUS(classname::OnFocus) \
|
|
EVT_CHILD_FOCUS(classname::OnChildFocus) \
|
|
EVT_NAVIGATION_KEY(classname::OnNavigationKey)
|
|
|
|
// implement the methods forwarding to the wxControlContainer
|
|
#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
|
|
|
|
#endif // _WX_CONTAINR_H_
|