51 lines
2 KiB
C
51 lines
2 KiB
C
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Name: wx/persist/window.h
|
||
|
|
// Purpose: interface of wxPersistentWindow<>
|
||
|
|
// Author: Vadim Zeitlin
|
||
|
|
// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
|
||
|
|
// Licence: wxWindows licence
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
/**
|
||
|
|
Base class for persistent windows.
|
||
|
|
|
||
|
|
Compared to wxPersistentObject this class does three things:
|
||
|
|
- Most importantly, wxPersistentWindow catches wxWindowDestroyEvent
|
||
|
|
generated when the window is destroyed and saves its properties
|
||
|
|
automatically when it happens.
|
||
|
|
- It implements GetName() using wxWindow::GetName() so that the derived
|
||
|
|
classes don't need to do it.
|
||
|
|
- It adds a convenient wxPersistentWindow::Get() accessor returning the
|
||
|
|
window object of the correct type.
|
||
|
|
*/
|
||
|
|
template <class T>
|
||
|
|
class wxPersistentWindow : public wxPersistentObject
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/// The type of the associated window.
|
||
|
|
typedef T WindowType;
|
||
|
|
|
||
|
|
/**
|
||
|
|
Constructor for a persistent window object.
|
||
|
|
|
||
|
|
The constructor uses wxEvtHandler::Connect() to catch
|
||
|
|
wxWindowDestroyEvent generated when the window is destroyed and call
|
||
|
|
wxPersistenceManager::SaveAndUnregister() when this happens. This
|
||
|
|
ensures that the window properties are saved and that this object
|
||
|
|
itself is deleted when the window is.
|
||
|
|
*/
|
||
|
|
wxPersistentWindow(WindowType *win);
|
||
|
|
|
||
|
|
WindowType *Get() const { return static_cast<WindowType *>(GetWindow()); }
|
||
|
|
/**
|
||
|
|
Implements the base class pure virtual method using wxWindow::GetName().
|
||
|
|
|
||
|
|
Notice that window names are usually not unique while this function
|
||
|
|
must return a unique (at least among the objects of this type) string.
|
||
|
|
Because of this you need to specify a non-default window name in its
|
||
|
|
constructor when creating it or explicitly call wxWindow::SetName()
|
||
|
|
before saving or restoring persistent properties.
|
||
|
|
*/
|
||
|
|
virtual wxString GetName() const;
|
||
|
|
};
|