415 lines
17 KiB
C
415 lines
17 KiB
C
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
// Name: wx/containr.h
|
||
|
// Purpose: wxControlContainer and wxNavigationEnabled declarations
|
||
|
// Author: Vadim Zeitlin
|
||
|
// Modified by:
|
||
|
// Created: 06.08.01
|
||
|
// Copyright: (c) 2001, 2011 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
|
||
|
// Licence: wxWindows licence
|
||
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
||
|
#ifndef _WX_CONTAINR_H_
|
||
|
#define _WX_CONTAINR_H_
|
||
|
|
||
|
#include "wx/defs.h"
|
||
|
|
||
|
#ifndef wxHAS_NATIVE_TAB_TRAVERSAL
|
||
|
// We need wxEVT_XXX declarations in this case.
|
||
|
#include "wx/event.h"
|
||
|
#endif
|
||
|
|
||
|
class WXDLLIMPEXP_FWD_CORE wxWindow;
|
||
|
class WXDLLIMPEXP_FWD_CORE wxWindowBase;
|
||
|
|
||
|
/*
|
||
|
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 WXDLLIMPEXP_CORE wxControlContainerBase
|
||
|
{
|
||
|
public:
|
||
|
// default ctor, SetContainerWindow() must be called later
|
||
|
wxControlContainerBase()
|
||
|
{
|
||
|
m_winParent = NULL;
|
||
|
|
||
|
// By default, we accept focus ourselves.
|
||
|
m_acceptsFocusSelf = true;
|
||
|
|
||
|
// But we don't have any children accepting it yet.
|
||
|
m_acceptsFocusChildren = false;
|
||
|
|
||
|
m_inSetFocus = false;
|
||
|
m_winLastFocused = NULL;
|
||
|
}
|
||
|
virtual ~wxControlContainerBase() {}
|
||
|
|
||
|
void SetContainerWindow(wxWindow *winParent)
|
||
|
{
|
||
|
wxASSERT_MSG( !m_winParent, wxT("shouldn't be called twice") );
|
||
|
|
||
|
m_winParent = winParent;
|
||
|
}
|
||
|
|
||
|
// This can be called by the window to indicate that it never wants to have
|
||
|
// the focus for itself.
|
||
|
void DisableSelfFocus()
|
||
|
{ m_acceptsFocusSelf = false; UpdateParentCanFocus(); }
|
||
|
|
||
|
// This can be called to undo the effect of a previous DisableSelfFocus()
|
||
|
// (otherwise calling it is not necessary as the window does accept focus
|
||
|
// by default).
|
||
|
void EnableSelfFocus()
|
||
|
{ m_acceptsFocusSelf = true; UpdateParentCanFocus(); }
|
||
|
|
||
|
// should be called from SetFocus(), returns false if we did nothing with
|
||
|
// the focus and the default processing should take place
|
||
|
bool DoSetFocus();
|
||
|
|
||
|
// returns whether we should accept focus ourselves or not
|
||
|
bool AcceptsFocus() const;
|
||
|
|
||
|
// Returns whether we or one of our children accepts focus.
|
||
|
bool AcceptsFocusRecursively() const
|
||
|
{ return AcceptsFocus() ||
|
||
|
(m_acceptsFocusChildren && HasAnyChildrenAcceptingFocus()); }
|
||
|
|
||
|
// We accept focus from keyboard if we accept it at all.
|
||
|
bool AcceptsFocusFromKeyboard() const { return AcceptsFocusRecursively(); }
|
||
|
|
||
|
// Call this when the number of children of the window changes.
|
||
|
//
|
||
|
// Returns true if we have any focusable children, false otherwise.
|
||
|
bool UpdateCanFocusChildren();
|
||
|
|
||
|
protected:
|
||
|
// 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;
|
||
|
|
||
|
// return true if we have any children that do accept focus right now
|
||
|
bool HasAnyChildrenAcceptingFocus() 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:
|
||
|
// Update the window status to reflect whether it is getting focus or not.
|
||
|
void UpdateParentCanFocus();
|
||
|
|
||
|
// Indicates whether the associated window can ever have focus itself.
|
||
|
//
|
||
|
// Usually this is the case, e.g. a wxPanel can be used either as a
|
||
|
// container for its children or just as a normal window which can be
|
||
|
// focused. But sometimes, e.g. for wxStaticBox, we can never have focus
|
||
|
// ourselves and can only get it if we have any focusable children.
|
||
|
bool m_acceptsFocusSelf;
|
||
|
|
||
|
// Cached value remembering whether we have any children accepting focus.
|
||
|
bool m_acceptsFocusChildren;
|
||
|
|
||
|
// 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
|
||
|
|
||
|
// ----------------------------------------------------------------------------
|
||
|
// 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 WXDLLIMPEXP_CORE 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
|
||
|
BaseWindowClass::Connect(wxEVT_NAVIGATION_KEY,
|
||
|
wxNavigationKeyEventHandler(wxNavigationEnabled::OnNavigationKey));
|
||
|
|
||
|
BaseWindowClass::Connect(wxEVT_SET_FOCUS,
|
||
|
wxFocusEventHandler(wxNavigationEnabled::OnFocus));
|
||
|
|
||
|
BaseWindowClass::Connect(wxEVT_CHILD_FOCUS,
|
||
|
wxChildFocusEventHandler(wxNavigationEnabled::OnChildFocus));
|
||
|
#endif // !wxHAS_NATIVE_TAB_TRAVERSAL
|
||
|
}
|
||
|
|
||
|
WXDLLIMPEXP_INLINE_CORE virtual bool AcceptsFocus() const
|
||
|
{
|
||
|
return m_container.AcceptsFocus();
|
||
|
}
|
||
|
|
||
|
WXDLLIMPEXP_INLINE_CORE virtual bool AcceptsFocusRecursively() const
|
||
|
{
|
||
|
return m_container.AcceptsFocusRecursively();
|
||
|
}
|
||
|
|
||
|
WXDLLIMPEXP_INLINE_CORE virtual bool AcceptsFocusFromKeyboard() const
|
||
|
{
|
||
|
return m_container.AcceptsFocusFromKeyboard();
|
||
|
}
|
||
|
|
||
|
WXDLLIMPEXP_INLINE_CORE virtual void AddChild(wxWindowBase *child)
|
||
|
{
|
||
|
BaseWindowClass::AddChild(child);
|
||
|
|
||
|
if ( m_container.UpdateCanFocusChildren() )
|
||
|
{
|
||
|
// Under MSW we must have wxTAB_TRAVERSAL style for TAB navigation
|
||
|
// to work.
|
||
|
if ( !BaseWindowClass::HasFlag(wxTAB_TRAVERSAL) )
|
||
|
BaseWindowClass::ToggleWindowStyle(wxTAB_TRAVERSAL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
WXDLLIMPEXP_INLINE_CORE virtual void RemoveChild(wxWindowBase *child)
|
||
|
{
|
||
|
#ifndef wxHAS_NATIVE_TAB_TRAVERSAL
|
||
|
m_container.HandleOnWindowDestroy(child);
|
||
|
#endif // !wxHAS_NATIVE_TAB_TRAVERSAL
|
||
|
|
||
|
BaseWindowClass::RemoveChild(child);
|
||
|
|
||
|
// We could reset wxTAB_TRAVERSAL here but it doesn't seem to do any
|
||
|
// harm to keep it.
|
||
|
m_container.UpdateCanFocusChildren();
|
||
|
}
|
||
|
|
||
|
WXDLLIMPEXP_INLINE_CORE virtual void SetFocus()
|
||
|
{
|
||
|
if ( !m_container.DoSetFocus() )
|
||
|
BaseWindowClass::SetFocus();
|
||
|
}
|
||
|
|
||
|
void SetFocusIgnoringChildren()
|
||
|
{
|
||
|
BaseWindowClass::SetFocus();
|
||
|
}
|
||
|
|
||
|
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.
|
||
|
// ----------------------------------------------------------------------------
|
||
|
|
||
|
#if 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(); \
|
||
|
\
|
||
|
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.UpdateCanFocusChildren(); \
|
||
|
} \
|
||
|
\
|
||
|
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
|
||
|
|
||
|
#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.UpdateCanFocusChildren(); \
|
||
|
} \
|
||
|
\
|
||
|
void classname::SetFocusIgnoringChildren() \
|
||
|
{ \
|
||
|
basename::SetFocus(); \
|
||
|
}
|
||
|
|
||
|
#else // !wxHAS_NATIVE_TAB_TRAVERSAL
|
||
|
|
||
|
// 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)
|
||
|
|
||
|
// 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.UpdateCanFocusChildren(); \
|
||
|
} \
|
||
|
\
|
||
|
void classname::OnNavigationKey( wxNavigationKeyEvent& event ) \
|
||
|
{ \
|
||
|
m_container.HandleOnNavigationKey(event); \
|
||
|
} \
|
||
|
\
|
||
|
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_
|