多媒体编程

开发平台：
Visual C++

ComPropertySheet.cpp：源码内容
							/* 
 *	Copyright (C) 2003-2006 Gabest
 *	http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */
// ComPropertySheet.cpp : implementation file
//
#include "stdafx.h"
#include "mplayerc.h"
#include "ComPropertySheet.h"
#include "....DSUtilDSUtil.h"
#include "....filtersInternalPropertyPage.h"
// CComPropertyPageSite
class CComPropertyPageSite : public CUnknown, public IPropertyPageSite
{
	IComPropertyPageDirty* m_pPPD;
public:
	CComPropertyPageSite(IComPropertyPageDirty* pPPD) : CUnknown(NAME("CComPropertyPageSite"), NULL), m_pPPD(pPPD) {}
	DECLARE_IUNKNOWN
	STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv)
	{
		return 
			QI(IPropertyPageSite)
			__super::NonDelegatingQueryInterface(riid, ppv);
	}
	// IPropertyPageSite
	STDMETHODIMP OnStatusChange(DWORD flags)
	{
		if(m_pPPD)
		{
			if(flags&PROPPAGESTATUS_DIRTY) m_pPPD->OnSetDirty(true); 
			if(flags&PROPPAGESTATUS_CLEAN) m_pPPD->OnSetDirty(false);
		}
		return S_OK;
	}
	STDMETHODIMP GetLocaleID(LCID* pLocaleID)
	{
		CheckPointer(pLocaleID, E_POINTER);
		*pLocaleID = ::GetUserDefaultLCID();
		return S_OK;
	}
	STDMETHODIMP GetPageContainer(IUnknown** ppUnk) {return E_NOTIMPL;}
	STDMETHODIMP TranslateAccelerator(LPMSG pMsg) {return E_NOTIMPL;}
};
// CComPropertySheet
IMPLEMENT_DYNAMIC(CComPropertySheet, CPropertySheet)
CComPropertySheet::CComPropertySheet(UINT nIDCaption, CWnd* pParentWnd, UINT iSelectPage)
	: CPropertySheet(nIDCaption, pParentWnd, iSelectPage)
{
	m_pSite = new CComPropertyPageSite(this);
	m_size.SetSize(0, 0);
}
CComPropertySheet::CComPropertySheet(LPCTSTR pszCaption, CWnd* pParentWnd, UINT iSelectPage)
	: CPropertySheet(pszCaption, pParentWnd, iSelectPage)
{
	m_pSite = new CComPropertyPageSite(this);
	m_size.SetSize(0, 0);
}
CComPropertySheet::~CComPropertySheet()
{
}
int CComPropertySheet::AddPages(CComPtr<ISpecifyPropertyPages> pSPP)
{
	if(!pSPP) return(0);
	CAUUID caGUID;
	caGUID.pElems = NULL;
	if(FAILED(pSPP->GetPages(&caGUID)))
		return(0);
	IUnknown* lpUnk = NULL;
	if(FAILED(pSPP.QueryInterface(&lpUnk)))
		return(0);
	m_spp.AddTail(pSPP);
	CComQIPtr<ISpecifyPropertyPages2> pSPP2 = pSPP;
	CComQIPtr<IPersist> pPersist = pSPP;
	ULONG nPages = 0;
	for(ULONG i = 0; i < caGUID.cElems; i++)
	{
		CComPtr<IPropertyPage> pPage;
		HRESULT hr = E_FAIL;
		if(FAILED(hr) && !pPage && pSPP2)
		{
			hr = pSPP2->CreatePage(caGUID.pElems[i], &pPage);
		}
		if(FAILED(hr) && !pPage)
		{
			hr = pPage.CoCreateInstance(caGUID.pElems[i]);
		}
		if(FAILED(hr) && !pPage && pPersist)
		{
			hr = LoadExternalPropertyPage(pPersist, caGUID.pElems[i], &pPage);
		}
		if(SUCCEEDED(hr))
		{
			if(AddPage(pPage, lpUnk))
				nPages++;
		}
	}
	if(caGUID.pElems) CoTaskMemFree(caGUID.pElems);
	lpUnk->Release();
	return(nPages);
}
bool CComPropertySheet::AddPage(IPropertyPage* pPage, IUnknown* pUnk)
{
	if(!pPage || !pUnk) return false;
	HRESULT hr;
	hr = pPage->SetPageSite(m_pSite);
	hr = pPage->SetObjects(1, &pUnk);
	PROPPAGEINFO ppi;
	hr = pPage->GetPageInfo(&ppi);
	m_size.cx = max(m_size.cx, ppi.size.cx);
	m_size.cy = max(m_size.cy, ppi.size.cy);
	CAutoPtr<CComPropertyPage> p(new CComPropertyPage(pPage));
	__super::AddPage(p);
	m_pages.AddTail(p);
	return true;
}
void CComPropertySheet::OnActivated(CPropertyPage* pPage)
{
	if(!pPage) return;
	CRect bounds(30000,30000,-30000,-30000);
	CRect wr, cr;
	GetWindowRect(wr);
	GetClientRect(cr);
	CSize ws = wr.Size(), cs = cr.Size();
	CRect twr, tcr;
	CTabCtrl* pTC = (CTabCtrl*)GetDlgItem(AFX_IDC_TAB_CONTROL);
	pTC->GetWindowRect(twr);
	pTC->GetClientRect(tcr);
	CSize tws = twr.Size(), tcs = tcr.Size();
	if(CWnd* pChild = pPage->GetWindow(GW_CHILD))
	{
		pChild->ModifyStyle(WS_CAPTION|WS_THICKFRAME, 0);
		pChild->ModifyStyleEx(WS_EX_DLGMODALFRAME, WS_EX_CONTROLPARENT);
		for(CWnd* pGrandChild = pChild->GetWindow(GW_CHILD); pGrandChild; pGrandChild = pGrandChild->GetNextWindow())
		{
			if(!(pGrandChild->GetStyle()&WS_VISIBLE)) continue;
			CRect r;
			pGrandChild->GetWindowRect(&r);
			pChild->ScreenToClient(r);
			bounds |= r;
		}
	}
	bounds |= CRect(0,0,0,0);
	bounds.SetRect(0, 0, bounds.right + max(bounds.left, 4), bounds.bottom + max(bounds.top, 4));
	CRect r = CRect(CPoint(0,0), bounds.Size());
	pTC->AdjustRect(TRUE, r);
	r.SetRect(twr.TopLeft(), twr.TopLeft() + r.Size());
	ScreenToClient(r);
	pTC->MoveWindow(r);
	pTC->ModifyStyle(TCS_MULTILINE, TCS_SINGLELINE);
	CSize diff = r.Size() - tws;
	if(!bounds.IsRectEmpty())
	{
		if(CWnd* pChild = pPage->GetWindow(GW_CHILD))
			pChild->MoveWindow(bounds);
		CRect r = twr;
		pTC->AdjustRect(FALSE, r);
		ScreenToClient(r);
		pPage->MoveWindow(CRect(r.TopLeft(), bounds.Size()));
	}
	int _afxPropSheetButtons[] = { IDOK, IDCANCEL, ID_APPLY_NOW, IDHELP };
	for(int i = 0; i < countof(_afxPropSheetButtons); i++)
	{
		if(CWnd* pWnd = GetDlgItem(_afxPropSheetButtons[i]))
		{
			pWnd->GetWindowRect(r);
			ScreenToClient(r);
			pWnd->MoveWindow(CRect(r.TopLeft() + diff, r.Size()));
		}
	}
	MoveWindow(CRect(wr.TopLeft(), ws + diff));
	Invalidate();
}
BEGIN_MESSAGE_MAP(CComPropertySheet, CPropertySheet)
END_MESSAGE_MAP()
// CComPropertySheet message handlers
BOOL CComPropertySheet::OnInitDialog()
{
	BOOL bResult = (BOOL)Default();//CPropertySheet::OnInitDialog();
	if (!(GetStyle() & WS_CHILD))
		CenterWindow();
	return bResult;
}

						