Source code of Windows XP (NT5)
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//Copyright (c) 1998 - 1999 Microsoft Corporation
/*******************************************************************************
*
* basedrpe.cpp
*
* implementation of CBaseDropEditBox and CBaseDropEditControl classes
* The CBaseDropEditBox class does things the way we like, overriding the base
* CComboBox (with edit field) class.
*
* copyright notice: Copyright 1995, Citrix Systems Inc.
*
* $Author: butchd $ Butch Davis
*
* $Log: N:\NT\PRIVATE\UTILS\CITRIX\WINUTILS\COMMON\VCS\BASEDRPE.CPP $
*
* Rev 1.1 29 Dec 1995 17:19:16 butchd
* update
*
*******************************************************************************/
/*
* include files
*/
#include <stdafx.h>
#include <afxwin.h> // MFC core and standard components
#include <afxext.h> // MFC extensions
#include "basedrpe.h"
#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CBaseDropEdit operations
BOOL
CBaseDropEditControl::Subclass(CComboBox *pWnd)
{
POINT pt;
/*
* Subclass this object to the child window of the specified combo box
* control (the combo box's edit control) and save away the combo box
* object pointer.
*/
pt.x = 5;
pt.y = 5;
m_pComboBoxControl = pWnd;
return( SubclassWindow((pWnd->ChildWindowFromPoint(pt))->GetSafeHwnd()) );
} // end CBaseDropEditControl::Subclass
////////////////////////////////////////////////////////////////////////////////
// CBaseDropEditControl message map
BEGIN_MESSAGE_MAP(CBaseDropEditControl, CEdit)
//{{AFX_MSG_MAP(CBaseDropEditControl)
ON_WM_GETDLGCODE()
ON_WM_CHAR()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CBaseDropEdit commands
UINT
CBaseDropEditControl::OnGetDlgCode()
{
return( CEdit::OnGetDlgCode() |
(m_pComboBoxControl->GetDroppedState() ? DLGC_WANTALLKEYS : 0) );
} // end CBaseDropEditControl::OnGetDlgCode
void
CBaseDropEditControl::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
if ( ((nChar == VK_ESCAPE) || (nChar == VK_RETURN) || (nChar == VK_TAB)) &&
m_pComboBoxControl->GetDroppedState() ) {
m_pComboBoxControl->ShowDropDown(FALSE);
if ( nChar == VK_TAB ) {
/*
* CODEWORK: need to figgure out how to set focus to the next
* or previous control when TAB (or shift-TAB) is pressed while
* we've gobbled up all keys. Here are 3 atempts that don't quite
* do what is needed [remember: the final solution must work for
* both tabbed-dialog as well as regular dialog, in all Windows
* host models (Win31, WinNT, Win95)!]
*/
/* Try #1
* Post a TAB WM_KEYDOWN message to the parent (grandparent if parent
* is a property page).
*/
// CWnd *pParent = GetParent();
// if ( pParent->IsKindOf(RUNTIME_CLASS(CPropertyPage)) )
// pParent = pParent->GetParent();
//
// pParent->PostMessage( WM_KEYDOWN, (WPARAM)VK_TAB, (LPARAM)0 );
/* Try #2
* Issue a Next or Prev dialog control message to the control's parent,
* based on the state of the shift key.
*/
// CDialog *pParent = (CDialog *)GetParent();
// if ( (GetKeyState(VK_SHIFT) < 0) ) {
// pParent->PrevDlgCtrl();
// } else {
// pParent->NextDlgCtrl();
// }
/* Try #3
* Just pass the VK_TAB along to our control.
*/
// CEdit::OnChar(nChar, nRepCnt, nFlags);
}
} else {
CEdit::OnChar(nChar, nRepCnt, nFlags);
}
} // end CBaseDropEditControl::OnChar
/////////////////////////////////////////////////////////////////////////////
// CBaseDropEditBox operations
void
CBaseDropEditBox::Subclass(CComboBox *pWnd)
{
/*
* Subclass this object to the specified combo box and let our edit
* object subclass the combo box's edit control.
*/
SubclassWindow(pWnd->GetSafeHwnd());
m_EditControl.Subclass(pWnd);
} // end CBaseDropEditBox::Subclass
////////////////////////////////////////////////////////////////////////////////
// CBaseDropEditBox message map
BEGIN_MESSAGE_MAP(CBaseDropEditBox, CComboBox)
//{{AFX_MSG_MAP(CBaseDropEditBox)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CBaseDropEditBox commands
////////////////////////////////////////////////////////////////////////////////