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// ResizableDialog.cpp : implementation file
//
/////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2000-2002 by Paolo Messina
// (http://www.geocities.com/ppescher - ppescher@yahoo.com)
//
// The contents of this file are subject to the Artistic License (the "License").
// You may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
// http://www.opensource.org/licenses/artistic-license.html
//
// If you find this code useful, credits would be nice!
//
/////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "ResizableDialog.h"
/////////////////////////////////////////////////////////////////////////////
// CResizableDialog
inline void CResizableDialog::PrivateConstruct()
{
m_bEnableSaveRestore = FALSE;
m_dwGripTempState = 1;
}
CResizableDialog::CResizableDialog()
{
PrivateConstruct();
}
CResizableDialog::CResizableDialog(UINT nIDTemplate, CWnd* pParentWnd)
: CCmdUIDialog(nIDTemplate, pParentWnd)
{
PrivateConstruct();
}
CResizableDialog::CResizableDialog(LPCTSTR lpszTemplateName, CWnd* pParentWnd)
: CCmdUIDialog(lpszTemplateName, pParentWnd)
{
PrivateConstruct();
}
CResizableDialog::~CResizableDialog()
{
}
BEGIN_MESSAGE_MAP(CResizableDialog, CCmdUIDialog)
//{{AFX_MSG_MAP(CResizableDialog)
ON_WM_GETMINMAXINFO()
ON_WM_SIZE()
ON_WM_DESTROY()
ON_WM_CREATE()
ON_WM_ERASEBKGND()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CResizableDialog message handlers
int CResizableDialog::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if(__super::OnCreate(lpCreateStruct) == -1)
return -1;
// child dialogs don't want resizable border or size grip,
// nor they can handle the min/max size constraints
BOOL bChild = GetStyle() & WS_CHILD;
if(!bChild)
{
// keep client area
CRect rect;
GetClientRect(&rect);
// set resizable style
ModifyStyle(DS_MODALFRAME, WS_POPUP | WS_THICKFRAME);
// adjust size to reflect new style
::AdjustWindowRectEx(&rect, GetStyle(),
::IsMenu(GetMenu()->GetSafeHmenu()), GetExStyle());
SetWindowPos(NULL, 0, 0, rect.Width(), rect.Height(), SWP_FRAMECHANGED |
SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREPOSITION);
// set the initial size as the min track size
SetMinTrackSize(rect.Size());
}
// create and init the size-grip
if(!CreateSizeGrip(!bChild))
return -1;
return 0;
}
void CResizableDialog::OnDestroy()
{
if(m_bEnableSaveRestore)
SaveWindowRect(m_sSection, m_bRectOnly);
// remove child windows
RemoveAllAnchors();
__super::OnDestroy();
}
void CResizableDialog::OnSize(UINT nType, int cx, int cy)
{
CWnd::OnSize(nType, cx, cy);
if(nType == SIZE_MAXHIDE || nType == SIZE_MAXSHOW)
return; // arrangement not needed
if(nType == SIZE_MAXIMIZED)
HideSizeGrip(&m_dwGripTempState);
else
ShowSizeGrip(&m_dwGripTempState);
// update grip and layout
UpdateSizeGrip();
ArrangeLayout();
}
void CResizableDialog::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
{
MinMaxInfo(lpMMI);
}
// NOTE: this must be called after setting the layout
// to have the dialog and its controls displayed properly
void CResizableDialog::EnableSaveRestore(LPCTSTR pszSection, BOOL bRectOnly)
{
m_sSection = pszSection;
m_bEnableSaveRestore = TRUE;
m_bRectOnly = bRectOnly;
// restore immediately
LoadWindowRect(pszSection, bRectOnly);
}
BOOL CResizableDialog::OnEraseBkgnd(CDC* pDC)
{
// Windows XP doesn't like clipping regions ...try this!
EraseBackground(pDC);
return TRUE;
/* ClipChildren(pDC); // old-method (for safety)
return CDialog::OnEraseBkgnd(pDC);
*/
}
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