gusucode.com > VC++ 实现填充图像选区-源码程序 > VC++ 实现填充图像选区-源码程序/code/FillRCDlg.cpp

    // FillRCDlg.cpp : implementation file
// Download by http://www.NewXing.com

#include "stdafx.h"
#include "FillRC.h"
#include "FillRCDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFillRCDlg dialog

CFillRCDlg::CFillRCDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CFillRCDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CFillRCDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CFillRCDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CFillRCDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CFillRCDlg, CDialog)
	//{{AFX_MSG_MAP(CFillRCDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFillRCDlg message handlers

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

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CFillRCDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CFillRCDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDC *pDC = GetDC();
		CRect itemRC(30, 30, 100, 120);						//定义一个区域对象
		CBrush brush(RGB(255, 128, 128));					//定义一个颜色画刷
		pDC->FillRect(itemRC,&brush);						//使用颜色填充区域
		brush.DeleteObject();							//删除画刷对象
		CBitmap bmp;									//定义一个位图对象
		bmp.LoadBitmap(IDB_BKBMP);						//加载位图
		brush.CreatePatternBrush(&bmp);					//创建位图画刷
		CRect bmpRC(110, 30, 200, 120);					//定义一个区域对象
		pDC->FillRect(bmpRC, &brush);					//使用位图填充区域
		bmp.DeleteObject();								//释放位图对象
		brush.DeleteObject();							//释放画刷对象
		CRect rectrc(210, 30, 300, 120);					//定义一个区域对象
		CRect hrc(280, 60, 350, 140);						//定义一个区域对象
		pDC->Rectangle(rectrc);							//绘制矩形边框
		pDC->Rectangle(hrc);							//绘制矩形边框
		HRGN hRect = CreateRectRgn(210,30,300,120);		//创建一个矩形选区
		HRGN hrgn = CreateRectRgn(280,60,350,140);		//创建一个矩形选区
		HRGN hret = CreateRectRgn(0,0,0,0);				//创建选区
		CombineRgn(hret,hRect,hrgn,RGN_AND);			//组合选区，获取两个选区的公共部分
		brush.CreateSolidBrush(RGB(255,0,0));			//创建一个颜色画刷
		CRgn rgn;										//定义一个选区对象
		rgn.Attach(hret);								//将选区对象附加一个选区句柄
		pDC->FillRgn(&rgn,&brush);						//填充选区
		brush.DeleteObject();							//释放画刷对象
		rgn.Detach();									//分离选区句柄
		DeleteObject(hRect);							//释放选区句柄
		DeleteObject(hrc);								//释放选区句柄
		DeleteObject(hret);								//释放选区句柄

		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CFillRCDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}