www.pudn.com > CraftFTP_gb.rar > DialogExpander.cpp

// Expanding and collapsing dialogs 
// 
// Michael Walz (walz@epsitec.ch) 
// Dec. 99 
// 
 
#include "stdafx.h" 
#include "DialogExpander.h" 
 
 
void CExpandDialog::ShrinkDialog(CWnd *pDlg, int idmark) 
{    
	ASSERT(pDlg != NULL) ;   
	CWnd *pWndMark = pDlg->GetDlgItem(idmark) ; 
	ASSERT(pWndMark != NULL) ; 
	CRect markrect ; 
	CRect dlgrect ; 
	CRect clientrect ; 
	CWnd *pParentWnd = pDlg->GetParent() ; 
	int offset ; 
	 
	pDlg->GetClientRect(&clientrect) ;  // clientrect of the dialog 
	pDlg->GetWindowRect(&dlgrect) ;	  // rectangle of the dialog window 
	 
	// get height of the title bar 
	offset = dlgrect.Height() - clientrect.bottom ; 
	 
	pWndMark->GetWindowRect(&markrect) ; 
	 
	 
	pDlg->ScreenToClient(&markrect) ; 
	 
	// calculate the new rectangle of the dialog window 
	dlgrect.bottom = dlgrect.top + markrect.bottom + offset; 
	 
	pDlg->MoveWindow (dlgrect.left, dlgrect.top, dlgrect.Width(), dlgrect.Height()) ; 
} 
 
 
CExpandDialog::CExpandDialog() 
{ 
	m_bIsInitialized = FALSE ; 
} 
 
void CExpandDialog::Initialize(CWnd *pDialog, BOOL bInitiallyExpanded, 
							   int IdExpandButton, int IdCollapsedMark, 
							   int IdCollapsedText) 
{ 
	m_IdExpandButton = IdExpandButton; 
	m_IdCollapsedMark = IdCollapsedMark; 
	m_IdCollapsedText = IdCollapsedText; 
	m_bIsInitialized = TRUE ; 
	m_pDialog = pDialog ; 
	m_bIsExpanded = TRUE ; 
	 
	m_pDialog->GetWindowRect(&m_dialogrect) ;	  // rectangle of the dialog window 
	m_pDialog->GetDlgItemText(IdExpandButton, m_sTextMore) ;  
	m_pDialog->GetDlgItemText(IdCollapsedText, m_sTextLess) ;  
	 
	CWnd *pWndMark = m_pDialog->GetDlgItem(m_IdCollapsedText) ; 
	pWndMark->ShowWindow(SW_HIDE);	// hide the "delimiting" control 
	 
	pWndMark = m_pDialog->GetDlgItem(m_IdCollapsedMark) ; 
	pWndMark->ShowWindow(SW_HIDE);	// hide the "delimiting" control 
	 
	if (bInitiallyExpanded) 
	{ 
		CWnd *pButton = m_pDialog->GetDlgItem(m_IdExpandButton) ; 
		pButton->SetWindowText(m_sTextLess ) ; 
	} 
	else 
		OnExpandButton() ; 
} 
 
 
void CExpandDialog::OnExpandButton() 
{ 
	ASSERT(m_bIsInitialized) ; 
	 
	CWnd *pButton ; 
	m_bIsExpanded = !m_bIsExpanded ;	 
	 
	if (m_bIsExpanded) 
	{ 
		CRect rect ; 
		m_pDialog->GetWindowRect(&rect) ; 
		rect.bottom = rect.top + m_dialogrect.Height() ; 
		rect.right = rect.left + m_dialogrect.Width() ; 
		m_pDialog->MoveWindow (&rect) ; 
	} 
	else 
		ShrinkDialog(m_pDialog, m_IdCollapsedMark ) ; 
	 
	pButton = m_pDialog->GetDlgItem(m_IdExpandButton) ; 
	pButton->SetWindowText(!m_bIsExpanded ? m_sTextMore : m_sTextLess ) ; 
	 
}