162e221f76
wxCompositeWindow::GetCompositeWindowParts() becomes simpler to implement in the derived classes with optionally shown elements if NULL windows are allowed (and ignored) in the list returned by it. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68910 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/compositewin.h
|
|
// Purpose: wxCompositeWindow<> declaration
|
|
// Author: Vadim Zeitlin
|
|
// Created: 2011-01-02
|
|
// RCS-ID: $Id: wxhead.h,v 1.12 2010-04-22 12:44:51 zeitlin Exp $
|
|
// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_COMPOSITEWIN_H_
|
|
#define _WX_COMPOSITEWIN_H_
|
|
|
|
#include "wx/window.h"
|
|
|
|
// NB: This is an experimental and, as for now, undocumented class used only by
|
|
// wxWidgets itself internally. Don't use it in your code until its API is
|
|
// officially stabilized unless you are ready to change it with the next
|
|
// wxWidgets release.
|
|
|
|
// FIXME-VC6: This compiler can't compile DoSetForAllParts() template function,
|
|
// it can't determine whether the deduced type should be "T" or "const T&". And
|
|
// without this function wxCompositeWindow is pretty useless so simply disable
|
|
// this code for it, this does mean that setting colours/fonts/... for
|
|
// composite controls won't work in the library compiled with it but so far
|
|
// this only affects the generic wxDatePickerCtrl which is not used by default
|
|
// under MSW anyhow so it doesn't seem to be worth it to spend time and uglify
|
|
// the code to fix it.
|
|
#ifndef __VISUALC6__
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxCompositeWindow is a helper for implementing composite windows: to define
|
|
// a class using subwindows, simply inherit from it specialized with the real
|
|
// base class name and implement GetCompositeWindowParts() pure virtual method.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// The template parameter W must be a wxWindow-derived class.
|
|
template <class W>
|
|
class wxCompositeWindow : public W
|
|
{
|
|
public:
|
|
typedef W BaseWindowClass;
|
|
|
|
// Default ctor doesn't do anything.
|
|
wxCompositeWindow() { }
|
|
|
|
// Override all wxWindow methods which must be forwarded to the composite
|
|
// window parts.
|
|
|
|
// Attribute setters group.
|
|
//
|
|
// NB: Unfortunately we can't factor out the call for the setter itself
|
|
// into DoSetForAllParts() because we can't call the function passed to
|
|
// it non-virtually and we need to do this to avoid infinite recursion,
|
|
// so we work around this by calling the method of this object itself
|
|
// manually in each function.
|
|
virtual bool SetForegroundColour(const wxColour& colour)
|
|
{
|
|
if ( !BaseWindowClass::SetForegroundColour(colour) )
|
|
return false;
|
|
|
|
DoSetForAllParts(&wxWindowBase::SetForegroundColour, colour);
|
|
|
|
return true;
|
|
}
|
|
|
|
virtual bool SetBackgroundColour(const wxColour& colour)
|
|
{
|
|
if ( !BaseWindowClass::SetBackgroundColour(colour) )
|
|
return false;
|
|
|
|
DoSetForAllParts(&wxWindowBase::SetBackgroundColour, colour);
|
|
|
|
return true;
|
|
}
|
|
|
|
virtual bool SetFont(const wxFont& font)
|
|
{
|
|
if ( !BaseWindowClass::SetFont(font) )
|
|
return false;
|
|
|
|
DoSetForAllParts(&wxWindowBase::SetFont, font);
|
|
|
|
return true;
|
|
}
|
|
|
|
virtual bool SetCursor(const wxCursor& cursor)
|
|
{
|
|
if ( !BaseWindowClass::SetCursor(cursor) )
|
|
return false;
|
|
|
|
DoSetForAllParts(&wxWindowBase::SetCursor, cursor);
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
// Must be implemented by the derived class to return all children to which
|
|
// the public methods we override should forward to.
|
|
virtual wxWindowList GetCompositeWindowParts() const = 0;
|
|
|
|
template <class T>
|
|
void DoSetForAllParts(bool (wxWindowBase::*func)(const T&), const T& arg)
|
|
{
|
|
// Simply call the setters for all parts of this composite window.
|
|
const wxWindowList parts = GetCompositeWindowParts();
|
|
for ( wxWindowList::const_iterator i = parts.begin();
|
|
i != parts.end();
|
|
++i )
|
|
{
|
|
wxWindow * const child = *i;
|
|
|
|
// Allow NULL elements in the list, this makes the code of derived
|
|
// composite controls which may have optionally shown children
|
|
// simpler and it doesn't cost us much here.
|
|
if ( child )
|
|
(child->*func)(arg);
|
|
}
|
|
}
|
|
|
|
wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxCompositeWindow, W);
|
|
};
|
|
|
|
#else // __VISUALC6__
|
|
|
|
template <class W>
|
|
class wxCompositeWindow : public W
|
|
{
|
|
};
|
|
|
|
#endif // !__VISUALC6__/__VISUALC6__
|
|
|
|
#endif // _WX_COMPOSITEWIN_H_
|