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[wxWidgets.git] / src / msw / popupwin.cpp
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1///////////////////////////////////////////////////////////////////////////////
2// Name: msw/popupwin.cpp
3// Purpose: implements wxPopupWindow for MSW
4// Author: Vadim Zeitlin
5// Modified by:
6// Created: 08.05.02
7// RCS-ID: $Id$
8// Copyright: (c) 2002 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
6c9a19aa 9// License: wxWindows licence
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10///////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20#ifdef __GNUG__
21 #pragma implementation "popup.h"
22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
28 #pragma hdrstop
29#endif
30
31#ifndef WX_PRECOMP
32#endif //WX_PRECOMP
33
34#include "wx/popupwin.h"
35
24b3cc2c 36#include "wx/msw/private.h" // for GetDesktopWindow()
220c6d43 37
24b3cc2c 38IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
7e25f59e 39
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40// ============================================================================
41// implementation
42// ============================================================================
43
44bool wxPopupWindow::Create(wxWindow *parent, int flags)
45{
46 return wxPopupWindowBase::Create(parent) &&
47 wxWindow::Create(parent, -1,
48 wxDefaultPosition, wxDefaultSize,
49 flags | wxPOPUP_WINDOW);
50}
51
52void wxPopupWindow::DoGetPosition(int *x, int *y) const
53{
54 // the position of a "top level" window such as this should be in
55 // screen coordinates, not in the client ones which MSW gives us
56 // (because we are a child window)
57 wxPopupWindowBase::DoGetPosition(x, y);
58
59 GetParent()->ClientToScreen(x, y);
60}
61
62WXDWORD wxPopupWindow::MSWGetStyle(long flags, WXDWORD *exstyle) const
63{
24b3cc2c 64 // we only honour the border flags, the others don't make sense for us
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65 WXDWORD style = wxWindow::MSWGetStyle(flags & wxBORDER_MASK, exstyle);
66
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67 if ( exstyle )
68 {
69 // a popup window floats on top of everything
70 *exstyle |= WS_EX_TOPMOST | WS_EX_TOOLWINDOW;
71 }
72
73 return style;
74}
75
24b3cc2c 76WXHWND wxPopupWindow::MSWGetParent() const
7e25f59e 77{
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78 // we must be a child of the desktop to be able to extend beyond the parent
79 // window client area (like the comboboxes drop downs do)
80 //
81 // NB: alternative implementation would be to use WS_POPUP instead of
82 // WS_CHILD but then showing a popup would deactivate the parent which
83 // is ugly and working around this, although possible, is even more
84 // ugly
85 return (WXHWND)::GetDesktopWindow();
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86}
87