combinedlg.cpp

一个国人自己实现图像库的程序（有参考价值）

// CombineDLG.cpp : implementation file
//

#include "stdafx.h"
#include "picviewer.h"
#include "CombineDLG.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCombineDLG dialog


CCombineDLG::CCombineDLG(CWnd* pParent /*=NULL*/)
	: CDialog(CCombineDLG::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCombineDLG)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	FCImage		bk ;
	bk.LoadJpeg (MAKEINTRESOURCE (JPG_BACKGROUND), _T("JPG")) ;
	m_BkBrush = ::CreatePatternBrush (bk.GetHandle ()) ;
}
CCombineDLG::~CCombineDLG ()
{
	::DeleteObject (m_BkBrush) ;
}


void CCombineDLG::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCombineDLG)
	DDX_Control(pDX, IDC_CHANNEL_ALPHA, m_cbAlpha);
	DDX_Control(pDX, IDC_CHANNEL_BLUE, m_cbBlue);
	DDX_Control(pDX, IDC_CHANNEL_GREEN, m_cbGreen);
	DDX_Control(pDX, IDC_CHANNEL_RED, m_cbRed);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCombineDLG, CDialog)
	//{{AFX_MSG_MAP(CCombineDLG)
	ON_WM_CTLCOLOR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCombineDLG message handlers

HBRUSH CCombineDLG::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
	if ((nCtlColor == CTLCOLOR_DLG) || (nCtlColor == CTLCOLOR_STATIC))
	{
		pDC->SetBkMode (TRANSPARENT) ;
		hbr = m_BkBrush ;
	}
	// TODO: Return a different brush if the default is not desired
	return hbr;
}

BOOL CCombineDLG::OnInitDialog() 
{
	CDialog::OnInitDialog();

	POSITION	posTemplate = ::AfxGetApp()->GetFirstDocTemplatePosition () ;
	while (posTemplate != NULL)
	{
		CDocTemplate	* pTemplate = ::AfxGetApp()->GetNextDocTemplate (posTemplate) ;
		POSITION		posDoc = pTemplate->GetFirstDocPosition () ;
		while (posDoc != NULL) 
		{
			CPicViewerDoc	* pDoc = (CPicViewerDoc *)pTemplate->GetNextDoc (posDoc) ;
			if (pDoc->m_fPic.IsGrayPalette ())
			{
				m_cbRed.AddString (pDoc->GetTitle()) ;
				m_cbRed.GetCount();
				m_cbRed.SetItemData (m_cbRed.GetCount()-1, (DWORD) pDoc) ;
				m_cbGreen.AddString (pDoc->GetTitle()) ;
				m_cbGreen.SetItemData (m_cbGreen.GetCount()-1, (DWORD) pDoc) ;
				m_cbBlue.AddString (pDoc->GetTitle()) ;
				m_cbBlue.SetItemData (m_cbBlue.GetCount()-1, (DWORD) pDoc) ;
				m_cbAlpha.AddString (pDoc->GetTitle()) ;
				m_cbAlpha.SetItemData (m_cbAlpha.GetCount()-1, (DWORD) pDoc) ;
			}
		}
	}
	m_cbRed.SetCurSel (0) ;
	m_cbGreen.SetCurSel (0) ;
	m_cbBlue.SetCurSel (0) ;
	m_cbAlpha.SetCurSel (0) ;
	return TRUE;
}

void CCombineDLG::OnOK() 
{
	m_pRed = (m_cbRed.GetCurSel() == 0) ? NULL : &((CPicViewerDoc *)m_cbRed.GetItemData (m_cbRed.GetCurSel()))->m_fPic ;
	m_pGreen = (m_cbGreen.GetCurSel() == 0) ? NULL : &((CPicViewerDoc *)m_cbGreen.GetItemData (m_cbGreen.GetCurSel()))->m_fPic ;
	m_pBlue = (m_cbBlue.GetCurSel() == 0) ? NULL : &((CPicViewerDoc *)m_cbBlue.GetItemData (m_cbBlue.GetCurSel()))->m_fPic ;
	m_pAlpha = (m_cbAlpha.GetCurSel() == 0) ? NULL : &((CPicViewerDoc *)m_cbAlpha.GetItemData (m_cbAlpha.GetCurSel()))->m_fPic ;
	CDialog::OnOK();
}