src/msw/popupwin.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        msw/popupwin.cpp
// Purpose:     implements wxPopupWindow for MSW
// Author:      Vadim Zeitlin
// Modified by:
// Created:     08.05.02
// RCS-ID:      $Id$
// Copyright:   (c) 2002 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// License:     wxWindows license
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#ifdef __GNUG__
    #pragma implementation "popup.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
#endif //WX_PRECOMP

#include "wx/popupwin.h"

#include "wx/msw/private.h"     // for GetDesktopWindow()

IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)

// ============================================================================
// implementation
// ============================================================================

bool wxPopupWindow::Create(wxWindow *parent, int flags)
{
    return wxPopupWindowBase::Create(parent) &&
               wxWindow::Create(parent, -1,
                                wxDefaultPosition, wxDefaultSize,
                                flags | wxPOPUP_WINDOW);
}

void wxPopupWindow::DoGetPosition(int *x, int *y) const
{
    // the position of a "top level" window such as this should be in
    // screen coordinates, not in the client ones which MSW gives us
    // (because we are a child window)
    wxPopupWindowBase::DoGetPosition(x, y);

    GetParent()->ClientToScreen(x, y);
}

WXDWORD wxPopupWindow::MSWGetStyle(long flags, WXDWORD *exstyle) const
{
    // we only honour the border flags, the others don't make sense for us
    WXDWORD style = wxWindow::MSWGetStyle(flags & wxBORDER_MASK, exstyle);

    if ( exstyle )
    {
        // a popup window floats on top of everything
        *exstyle |= WS_EX_TOPMOST | WS_EX_TOOLWINDOW;
    }

    return style;
}

WXHWND wxPopupWindow::MSWGetParent() const
{
    // we must be a child of the desktop to be able to extend beyond the parent
    // window client area (like the comboboxes drop downs do)
    //
    // NB: alternative implementation would be to use WS_POPUP instead of
    //     WS_CHILD but then showing a popup would deactivate the parent which
    //     is ugly and working around this, although possible, is even more
    //     ugly
    return (WXHWND)::GetDesktopWindow();
}
Commit	Line	Data
	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>
	9	// License: wxWindows license
	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
	36	#include "wx/msw/private.h" // for GetDesktopWindow()
	37
	38	IMPLEMENT_DYNAMIC_CLASS(wxPopupWindow, wxWindow)
	39
	40	// ============================================================================
	41	// implementation
	42	// ============================================================================
	43
	44	bool 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
	52	void 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
	62	WXDWORD wxPopupWindow::MSWGetStyle(long flags, WXDWORD *exstyle) const
	63	{
	64	// we only honour the border flags, the others don't make sense for us
	65	WXDWORD style = wxWindow::MSWGetStyle(flags & wxBORDER_MASK, exstyle);
	66
	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
	76	WXHWND wxPopupWindow::MSWGetParent() const
	77	{
	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();
	86	}
	87