GDI/图象编程

开发平台：
Visual C++

DRAW.CPP：源码内容
							// draw.cpp : Defines the class behaviors for the application.
//
#include "stdafx.h"
#include "draw.h"
#include "MainFrm.h"
#include "ChildFrm.h"
#include "drawDoc.h"
#include "drawView.h"
#include "PenWidth.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CDrawApp
BEGIN_MESSAGE_MAP(CDrawApp, CWinApp)
	//{{AFX_MSG_MAP(CDrawApp)
	ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
	ON_COMMAND(ID_DRAW_FILLCOLOR, OnDrawFillcolor)
	ON_COMMAND(ID_DRAW_SELECT, OnDrawSelect)
	ON_COMMAND(ID_DRAW_LINE, OnDrawLine)
	ON_UPDATE_COMMAND_UI(ID_DRAW_LINE, OnUpdateDrawLine)
	ON_COMMAND(ID_DRAW_RECT, OnDrawRect)
	ON_UPDATE_COMMAND_UI(ID_DRAW_RECT, OnUpdateDrawRect)
	ON_COMMAND(ID_DRAW_RECTFILL, OnDrawRectfill)
	ON_UPDATE_COMMAND_UI(ID_DRAW_RECTFILL, OnUpdateDrawRectfill)
	ON_COMMAND(ID_DRAW_RECTROUND, OnDrawRectround)
	ON_UPDATE_COMMAND_UI(ID_DRAW_RECTROUND, OnUpdateDrawRectround)
	ON_COMMAND(ID_DRAW_RECTROUNDFILL, OnDrawRectroundfill)
	ON_UPDATE_COMMAND_UI(ID_DRAW_RECTROUNDFILL, OnUpdateDrawRectroundfill)
	ON_COMMAND(ID_DRAW_ELLIPSE, OnDrawEllipse)
	ON_UPDATE_COMMAND_UI(ID_DRAW_ELLIPSE, OnUpdateDrawEllipse)
	ON_COMMAND(ID_DRAW_CIRCLE, OnDrawCircle)
	ON_UPDATE_COMMAND_UI(ID_DRAW_CIRCLE, OnUpdateDrawCircle)
	ON_COMMAND(ID_DRAW_CIRCLEFILL, OnDrawCirclefill)
	ON_UPDATE_COMMAND_UI(ID_DRAW_CIRCLEFILL, OnUpdateDrawCirclefill)
	ON_COMMAND(ID_DRAW_ELLIPSEFILL, OnDrawEllipsefill)
	ON_UPDATE_COMMAND_UI(ID_DRAW_ELLIPSEFILL, OnUpdateDrawEllipsefill)
	ON_COMMAND(ID_DRAW_WORD, OnDrawWord)
	ON_UPDATE_COMMAND_UI(ID_DRAW_WORD, OnUpdateDrawWord)
	ON_COMMAND(ID_DRAW_PENCOLOR, OnDrawPencolor)
	ON_COMMAND(ID_DRAW_PEN_WIDTH, OnDrawPenWidth)
	ON_UPDATE_COMMAND_UI(ID_DRAW_SELECT, OnUpdateDrawSelect)
	//}}AFX_MSG_MAP
	// Standard file based document commands
	ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
	ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
	// Standard print setup command
	ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDrawApp construction
CDrawApp::CDrawApp()
{
	m_FillColor = RGB(0, 0, 0);
    m_PenColor = RGB(0, 0, 0);
	m_CurrentPenThickness = 1;
	m_CurrentLineStyle = PS_DOT;
    m_CurrentTool = ID_DRAW_SELECT;
}
/////////////////////////////////////////////////////////////////////////////
// The one and only CDrawApp object
CDrawApp theApp;
/////////////////////////////////////////////////////////////////////////////
// CDrawApp initialization
BOOL CDrawApp::InitInstance()
{
	AfxEnableControlContainer();
	// Standard initialization
	// If you are not using these features and wish to reduce the size
	//  of your final executable, you should remove from the following
	//  the specific initialization routines you do not need.
#ifdef _AFXDLL
	Enable3dControls();			// Call this when using MFC in a shared DLL
#else
	Enable3dControlsStatic();	// Call this when linking to MFC statically
#endif
	// Change the registry key under which our settings are stored.
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization.
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));
	LoadStdProfileSettings();  // Load standard INI file options (including MRU)
	// Register the application's document templates.  Document templates
	//  serve as the connection between documents, frame windows and views.
	CMultiDocTemplate* pDocTemplate;
	pDocTemplate = new CMultiDocTemplate(
		IDR_DRAWTYPE,
		RUNTIME_CLASS(CDrawDoc),
		RUNTIME_CLASS(CChildFrame), // custom MDI child frame
		RUNTIME_CLASS(CDrawView));
	AddDocTemplate(pDocTemplate);
	// create main MDI Frame window
	CMainFrame* pMainFrame = new CMainFrame;
	if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
		return FALSE;
	m_pMainWnd = pMainFrame;
	// Parse command line for standard shell commands, DDE, file open
	CCommandLineInfo cmdInfo;
	ParseCommandLine(cmdInfo);
	// Dispatch commands specified on the command line
	if (!ProcessShellCommand(cmdInfo))
		return FALSE;
	// The main window has been initialized, so show and update it.
	pMainFrame->ShowWindow(SW_SHOWMAXIMIZED);
	pMainFrame->UpdateWindow();
	return TRUE;
}
/////////////////////////////////////////////////////////////////////////////
// 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)
		// No message handlers
	//}}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()
// App command to run the dialog
void CDrawApp::OnAppAbout()
{
	CAboutDlg aboutDlg;
	aboutDlg.DoModal();
}
/////////////////////////////////////////////////////////////////////////////
// CDrawApp message handlers
void CDrawApp::OnDrawFillcolor() 
{
	CColorDialog ColorDialog;
	if(ColorDialog.DoModal() == IDOK)
		m_FillColor = ColorDialog.GetColor();
}
void CDrawApp::OnDrawSelect() 
{
	m_CurrentTool = ID_DRAW_SELECT;
}
void CDrawApp::OnUpdateDrawSelect(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_SELECT ? 1:0);
}
void CDrawApp::OnDrawLine() 
{
	m_CurrentTool = ID_DRAW_LINE;
}
void CDrawApp::OnUpdateDrawLine(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_LINE ? 1:0);
}
void CDrawApp::OnDrawRect() 
{
	m_CurrentTool = ID_DRAW_RECT;
}
void CDrawApp::OnUpdateDrawRect(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_RECT ? 1:0);
}
void CDrawApp::OnDrawRectfill() 
{
	m_CurrentTool = ID_DRAW_RECTFILL;
}
void CDrawApp::OnUpdateDrawRectfill(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_RECTFILL ? 1:0);
}
void CDrawApp::OnDrawRectround() 
{
	m_CurrentTool = ID_DRAW_RECTROUND;
}
void CDrawApp::OnUpdateDrawRectround(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_RECTROUND ? 1:0);
}
void CDrawApp::OnDrawRectroundfill() 
{
	m_CurrentTool = ID_DRAW_RECTROUNDFILL;
}
void CDrawApp::OnUpdateDrawRectroundfill(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_RECTROUNDFILL ? 1:0);
}
void CDrawApp::OnDrawEllipse() 
{
	m_CurrentTool = ID_DRAW_ELLIPSE;
}
void CDrawApp::OnUpdateDrawEllipse(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_ELLIPSE ? 1:0);
}
void CDrawApp::OnDrawCircle() 
{
	m_CurrentTool = ID_DRAW_CIRCLE;
}
void CDrawApp::OnUpdateDrawCircle(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_CIRCLE ? 1:0);
}
void CDrawApp::OnDrawCirclefill() 
{
	m_CurrentTool = ID_DRAW_CIRCLEFILL;
}
void CDrawApp::OnUpdateDrawCirclefill(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_CIRCLEFILL ? 1:0);
}
void CDrawApp::OnDrawEllipsefill() 
{
	m_CurrentTool = ID_DRAW_ELLIPSEFILL;
}
void CDrawApp::OnUpdateDrawEllipsefill(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_ELLIPSEFILL ? 1:0);
}
void CDrawApp::OnDrawWord() 
{
	m_CurrentTool = ID_DRAW_WORD;
}
void CDrawApp::OnUpdateDrawWord(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck(m_CurrentTool == ID_DRAW_WORD ? 1:0);
}
void CDrawApp::OnDrawPencolor() 
{
	CColorDialog ColorDialog;
	if(ColorDialog.DoModal() == IDOK)
		m_PenColor = ColorDialog.GetColor();	
}
void CDrawApp::OnDrawPenWidth() 
{
	CPenWidth PenWidthDlg;
	PenWidthDlg.m_Width = m_CurrentPenThickness;
	if(PenWidthDlg.DoModal() == IDOK)
		m_CurrentPenThickness = PenWidthDlg.m_Width;
}

						