mixdibdlg.cpp

一个国人自己实现图像库的程序（有参考价值）

// MixdibDlg.cpp : implementation file
//

#include "stdafx.h"
#include "picviewer.h"
#include "MixdibDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMixdibDlg dialog


CMixdibDlg::CMixdibDlg(CWnd* pParent /*=NULL*/, FCDib * dib32)
	: CDialog(CMixdibDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMixdibDlg)
		// NOTE: the ClassWizard will add member initialization here
	m_pBak = dib32 ;
	//}}AFX_DATA_INIT
	FCImage		bk ;
	bk.LoadJpeg (MAKEINTRESOURCE (JPG_BACKGROUND), _T("JPG")) ;
	m_BkBrush = ::CreatePatternBrush (bk.GetHandle ()) ;
}
CMixdibDlg::~CMixdibDlg ()
{
	::DeleteObject (m_BkBrush) ;
}


void CMixdibDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMixdibDlg)
	DDX_Control(pDX, IDS_ALPHAVALUE, m_sValue);
	DDX_Control(pDX, IDC_ALPHAVALUE, m_sbValue);
	DDX_Control(pDX, IDS_SRC2, m_Src2);
	DDX_Control(pDX, IDS_SRC1, m_Src1);
	DDX_Control(pDX, IDS_RESULT, m_Result);
	DDX_Control(pDX, IDC_SELECTLOGICAL, m_SelLog);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CMixdibDlg, CDialog)
	//{{AFX_MSG_MAP(CMixdibDlg)
	ON_BN_CLICKED(IDB_SELMIX1, OnSelmix1)
	ON_BN_CLICKED(IDB_SELMIX2, OnSelmix2)
	ON_CBN_SELCHANGE(IDC_SELECTLOGICAL, OnSelchangeSelectlogical)
	ON_WM_HSCROLL()
	ON_WM_CTLCOLOR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMixdibDlg message handlers

void CMixdibDlg::OnSelmix1() 
{
	// TODO: Add your control notification handler code here
	TCHAR		szFileName[_MAX_PATH] = { TEXT('\0') } ;
	::fooShowFileDialog (this->m_hWnd, TRUE, szFileName, TEXT("c:\\"), TEXT("打开主图"),
		TEXT ("所有图象文件\0*.jpg;*.bmp;*.pcx;*.png;*.ico;*.tiff;*.gif;*.tga\0")
		TEXT ("Bitmap Files (*.bmp)\0*.bmp\0")
		TEXT ("JPEG Files (*.jpg;*.jpeg)\0*.jpg;*.jpeg\0")
		TEXT ("Gif  Files (*.gif)\0*.gif\0")
		TEXT ("Png  Files (*.png)\0*.png\0")
		TEXT ("Tiff Files (*.tif)\0*.tif\0")
		TEXT ("Pcx  Files (*.pcx)\0*.pcx\0")
		TEXT ("Tga  Files (*.tga)\0*.tga\0")
		TEXT ("All  Files (*.*)\0*.*\0\0")) ;
	if (szFileName[0] != TEXT('\0'))
	{
		RECT		rc ;
		m_Src1.GetClientRect (&rc) ;

		if (!m_OriSrc1.Load (szFileName))
			return ;
		m_OriSrc1.ConvertTo32Bit () ;
		m_Sample1 = * (FCDibEffect *) &m_OriSrc1 ;
		m_Sample1.Stretch (rc.right, rc.bottom) ;
		m_Src1.SetBitmap (m_Sample1.GetHandle()) ;
		if ((m_Sample2.GetHandle() != NULL) && (m_SelLog.GetCurSel () != -1))
			this->OnSelchangeSelectlogical () ;
	}
}

void CMixdibDlg::OnSelmix2() 
{
	// TODO: Add your control notification handler code here
	TCHAR		szFileName[_MAX_PATH] = { TEXT('\0') } ;
	::fooShowFileDialog (this->m_hWnd, TRUE, szFileName, TEXT("c:\\"), TEXT("打开主图"),
		TEXT ("所有图象文件\0*.jpg;*.bmp;*.pcx;*.png;*.ico;*.tiff;*.gif;*.tga\0")
		TEXT ("Bitmap Files (*.bmp)\0*.bmp\0")
		TEXT ("JPEG Files (*.jpg;*.jpeg)\0*.jpg;*.jpeg\0")
		TEXT ("Gif  Files (*.gif)\0*.gif\0")
		TEXT ("Png  Files (*.png)\0*.png\0")
		TEXT ("Tiff Files (*.tif)\0*.tif\0")
		TEXT ("Pcx  Files (*.pcx)\0*.pcx\0")
		TEXT ("Tga  Files (*.tga)\0*.tga\0")
		TEXT ("All  Files (*.*)\0*.*\0\0")) ;
	if (szFileName[0] != TEXT('\0'))
	{
		RECT		rc ;
		m_Src2.GetClientRect (&rc) ;

		if (!m_OriSrc2.Load (szFileName))
			return ;
		m_OriSrc2.ConvertTo32Bit () ;
		m_Sample2 = * (FCDibEffect *) &m_OriSrc2 ;
		m_Sample2.Stretch (rc.right, rc.bottom) ;
		m_Src2.SetBitmap (m_Sample2.GetHandle()) ;
		if ((m_Sample1.GetHandle() != NULL) && (m_SelLog.GetCurSel () != -1))
			this->OnSelchangeSelectlogical () ;
	}	
}

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

	// TODO: Add extra initialization here
	m_sbValue.SetScrollRange (0, 100, FALSE) ;
	m_sbValue.SetScrollPos (50, FALSE) ;
	m_iCurr = 50 ;
	m_sbValue.EnableWindow (FALSE) ;

	m_Sample1.SetUndoEnable (false) ;
	m_Sample2.SetUndoEnable (false) ;
	m_SampleResult.SetUndoEnable (false) ;

	DWORD	style = m_Src1.GetStyle () ;
	style |= SS_BITMAP | SS_CENTERIMAGE ;
	::SetWindowLong (m_Src1.GetSafeHwnd(), GWL_STYLE, style) ;
	::SetWindowLong (m_Src2.GetSafeHwnd(), GWL_STYLE, style) ;
	::SetWindowLong (m_Result.GetSafeHwnd(), GWL_STYLE, style) ;

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CMixdibDlg::OnSelchangeSelectlogical() 
{
	// TODO: Add your control notification handler code here
	if ((m_Sample1.GetHandle() == NULL) || (m_Sample2.GetHandle() == NULL))
		return ;

	if (m_SelLog.GetCurSel () == 0)
	{
		m_sbValue.EnableWindow (TRUE) ;
		m_sValue.EnableWindow (TRUE) ;
	}
	else
	{
		m_sbValue.EnableWindow (FALSE) ;
		m_sValue.EnableWindow (FALSE) ;
	}
	m_SampleResult = m_Sample1 ;
	switch (m_SelLog.GetCurSel ())
	{
		case 0 :
			TCHAR	buffer[20] ;
			_itoa (m_iCurr, buffer, 10) ;
			m_sValue.SetWindowText (buffer) ;
			m_SampleResult.AlphaBlend (m_Sample2, m_iCurr, 0, 0) ;
			break ;

		case 1 : // 与
			m_SampleResult.AND (m_Sample2) ;	break ;
		case 2 : // 或
			m_SampleResult.OR (m_Sample2) ;		break ;
		case 3 : // 异或
			m_SampleResult.XOR (m_Sample2) ;	break ;
	}
	m_Result.SetBitmap (m_SampleResult.GetHandle()) ;
}

void CMixdibDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	//	Get Current Position
	if ((nSBCode != SB_THUMBPOSITION) && (nSBCode != SB_THUMBTRACK))
		nPos = pScrollBar->GetScrollPos () ;
	switch (nSBCode)
	{
		case SB_LINELEFT :
			nPos-- ; break ;
		case SB_LINERIGHT :
			nPos++ ; break ;
		case SB_PAGELEFT :
			nPos -= 5 ; break ;
		case SB_PAGERIGHT :
			nPos += 5 ; break ;
	}
	m_iCurr = nPos ;
	::fooBound (&m_iCurr, 0, 100) ;
	CString		num ;
	num.Format ("%i", m_iCurr) ;
	m_sValue.SetWindowText (num) ;

	m_SampleResult = m_Sample1 ;
	m_SampleResult.AlphaBlend (m_Sample2, m_iCurr, 0, 0) ;
	m_Result.SetBitmap (m_SampleResult.GetHandle()) ;
	pScrollBar->SetScrollPos (nPos) ;
	CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}

void CMixdibDlg::OnOK() 
{
	// TODO: Add extra validation here
	if ((m_Sample1.GetHandle() == NULL) || (m_Sample2.GetHandle() == NULL) || (m_SelLog.GetCurSel () == -1))
		goto Over ;

	switch (m_SelLog.GetCurSel ())
	{
		case 0 :
			m_OriSrc1.AlphaBlend (m_OriSrc2, m_iCurr, 0, 0) ;	break ;
		case 1 : // 与
			m_OriSrc1.AND (m_OriSrc2) ;	break ;
		case 2 : // 或
			m_OriSrc1.OR (m_OriSrc2) ;	break ;
		case 3 : // 异或
			m_OriSrc1.XOR (m_OriSrc2) ;	break ;
		default :
			goto Over ;
	}
	*m_pBak = m_OriSrc1 ;
Over :
	CDialog::OnOK();
}

HBRUSH CMixdibDlg::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;
}