CTreePropSheet - A Netscape/Visual Studio .NET like Preferences Dialog

/********************************************************************
*
* Copyright (c) 2002 Sven Wiegand <mail@sven-wiegand.de>
*
* You can use this and modify this in any way you want,
* BUT LEAVE THIS HEADER INTACT.
*
* Redistribution is appreciated.
*
* $Workfile:$
* $Revision:$
* $Modtime:$
* $Author:$
*
* Revision History:
*	$History:$
*
*********************************************************************/

#include "stdafx.h"
#include "PropPageFrame.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif



namespace TreePropSheet
{


//-------------------------------------------------------------------
// class CPropPageFrame
//-------------------------------------------------------------------

CPropPageFrame::CPropPageFrame()
:	m_bShowCaption(FALSE),
	m_nCaptionHeight(0),
	m_hCaptionIcon(NULL),
	m_dwMsgFormat(DT_CENTER|DT_VCENTER|DT_NOPREFIX|DT_SINGLELINE)
{
}


CPropPageFrame::~CPropPageFrame()
{
}


/////////////////////////////////////////////////////////////////////
// Operations


void CPropPageFrame::ShowCaption(BOOL bEnable)
{
	m_bShowCaption = bEnable;
	SafeUpdateWindow(CalcCaptionArea());
}


BOOL CPropPageFrame::GetShowCaption() const
{
	return m_bShowCaption;
}


void CPropPageFrame::SetCaption(LPCTSTR lpszCaption, HICON hIcon /*= NULL*/)
{
	m_strCaption = lpszCaption;
	m_hCaptionIcon = hIcon;
	SafeUpdateWindow(CalcCaptionArea());
}


CString CPropPageFrame::GetCaption(HICON *pIcon /* = NULL */) const
{
	if (pIcon)
		*pIcon = m_hCaptionIcon;
	return m_strCaption;
}


void CPropPageFrame::SetCaptionHeight(int nCaptionHeight)
{
	m_nCaptionHeight = nCaptionHeight;
	SafeUpdateWindow(CalcCaptionArea());
}


int CPropPageFrame::GetCaptionHeight() const
{
	return m_nCaptionHeight;
}


void CPropPageFrame::SetMsgText(LPCTSTR lpszMsg)
{
	m_strMsg = lpszMsg;
	SafeUpdateWindow(CalcMsgArea());
}


CString CPropPageFrame::GetMsgText() const
{
	return m_strMsg;
}


void CPropPageFrame::SetMsgFormat(DWORD dwFormat)
{
	m_dwMsgFormat = dwFormat;
	SafeUpdateWindow(CalcMsgArea());
}


DWORD CPropPageFrame::GetMsgFormat() const
{
	return m_dwMsgFormat;
}


/////////////////////////////////////////////////////////////////////
// Overridable implementation helpers

void CPropPageFrame::Draw(CDC *pDc)
{
	if (GetShowCaption())
		DrawCaption(pDc, CalcCaptionArea(), m_strCaption, m_hCaptionIcon);
	DrawMsg(pDc, CalcMsgArea(), m_strMsg, m_dwMsgFormat);
}


CRect CPropPageFrame::CalcMsgArea()
{
	ASSERT(IsWindow(GetWnd()->GetSafeHwnd()));

	CRect	rectMsg;
	GetWnd()->GetClientRect(rectMsg);
	if (GetShowCaption())
		rectMsg.top+= GetCaptionHeight();

	return rectMsg;
}


void CPropPageFrame::DrawMsg(CDC *pDc, CRect rect, LPCTSTR lpszMsg, DWORD dwFormat) 
{
	CFont	*pPrevFont = dynamic_cast<CFont*>(pDc->SelectStockObject(DEFAULT_GUI_FONT));
	int		nPrevBkMode = pDc->SetBkMode(TRANSPARENT);

	pDc->DrawText(GetMsgText(), rect, GetMsgFormat());

	pDc->SetBkMode(nPrevBkMode);
	pDc->SelectObject(pPrevFont);
}


CRect	CPropPageFrame::CalcCaptionArea()
{
	ASSERT(IsWindow(GetWnd()->GetSafeHwnd()));

	CRect	rectCaption;
	GetWnd()->GetClientRect(rectCaption);
	if (!GetShowCaption())
		rectCaption.bottom = rectCaption.top;
	else
		rectCaption.bottom = rectCaption.top+GetCaptionHeight();

	return rectCaption;
}


void CPropPageFrame::DrawCaption(CDC *pDc, CRect rect, LPCTSTR lpszCaption, HICON hIcon) 
{
	// should be implemented by specialized classes
}


/////////////////////////////////////////////////////////////////////
// Implementation helpers

void CPropPageFrame::SafeUpdateWindow(LPCRECT lpRect /* = NULL */)
{
	if (!IsWindow(GetWnd()->GetSafeHwnd()))
		return;

	GetWnd()->InvalidateRect(lpRect, TRUE);
}



} //namespace TreePropSheet