bbcf2821a1
wxCustomBackgroundWindow is a new class allowing to set a custom bitmap for the background of any window. The relevant code was mostly moved from wxPanel to which it was added only recently (before 2.9.2) making it unnecessary to preserve compatibility. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69378 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/custombgwin.h
|
|
// Purpose: Documentation of wxCustomBackgroundWindow.
|
|
// Author: Vadim Zeitlin
|
|
// Created: 2011-10-10
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
A helper class making it possible to use custom background for any window.
|
|
|
|
wxWindow itself only provides SetBackgroundColour() method taking a (solid)
|
|
wxColour. This class extends it by allowing to use custom bitmap
|
|
backgrounds with any window, provided that you inherit from it. Notice that
|
|
the usual rule of not interfering with event handling or painting of native
|
|
controls still applies, so you shouldn't try to use custom backgrounds with
|
|
classes such as wxButton (even if this might work on some platforms, it's
|
|
not guaranteed to work in general). But you can use this class in
|
|
conjunction with wxWindow, wxPanel, wxFrame and other similar classes, e.g.
|
|
the erase sample shows how to use it with wxScrolledWindow:
|
|
|
|
@code
|
|
#include "wx/custombgwin.h"
|
|
|
|
class MyCanvas : public wxCustomBackgroundWindow<wxScrolledWindow>
|
|
{
|
|
public:
|
|
MyCanvas(wxWindow* parent)
|
|
{
|
|
// Notice that we must explicitly call base class Create()
|
|
// instead of using its ctor as wxCustomBackgroundWindow
|
|
// doesn't define any non-default ctors.
|
|
Create(parent, wxID_ANY);
|
|
|
|
...
|
|
|
|
SetBackgroundBitmap(bitmap);
|
|
}
|
|
};
|
|
@endcode
|
|
|
|
@category{miscwnd}
|
|
|
|
@since 2.9.3
|
|
*/
|
|
template <class W>
|
|
class wxCustomBackgroundWindow : public W
|
|
{
|
|
public:
|
|
/// Trivial default constructor.
|
|
wxCustomBackgroundWindow();
|
|
|
|
/**
|
|
Set the background bitmap for this window.
|
|
|
|
If @a bmp is a valid bitmap, this bitmap will be tiled over the panel
|
|
background and show through any of its transparent children. Passing an
|
|
invalid bitmap reverts to the default background appearance.
|
|
|
|
Notice that you must not prevent the base class EVT_ERASE_BACKGROUND
|
|
handler from running (i.e. not to handle this event yourself) for this
|
|
to work.
|
|
*/
|
|
void SetBackgroundBitmap(const wxBitmap& bmp);
|
|
};
|