childview.cpp

《Visual C++.NET MFC类库应用详解》程序实例

// ChildView.cpp : CChildView 类的实现
//

#include "stdafx.h"
#include "Hello.h"
#include "ChildView.h"
#include "afxdlgs.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


enum {DRAW_LINE,DRAW_ARC,DRAW_RECTANGLE,DRAW_CIRCLE,DRAW_ELLIPSE,DRAW_POLYGON,DRAW_TEXT};
// CChildView

CChildView::CChildView()
{
	pMenu.CreatePopupMenu();
    pMenu.AppendMenu(MF_ENABLED,ID_DRAW_LINE,_T("Draw Line"));
    pMenu.AppendMenu(MF_ENABLED,ID_DRAW_RECTANGLE,_T("Draw Rect"));
    pMenu.AppendMenu(MF_ENABLED,ID_DRAW_ARC,_T("Draw Arc"));
    pMenu.AppendMenu(MF_ENABLED,ID_DRAW_CIRCLE,_T("Draw Circle"));
    pMenu.AppendMenu(MF_ENABLED,ID_DRAW_POLYGON,_T("Draw Polygon"));
    pMenu.AppendMenu(MF_ENABLED,ID_DRAW_ELLIPSE,_T("Draw Ellipse"));
}

CChildView::~CChildView()
{
}


BEGIN_MESSAGE_MAP(CChildView, CWnd)
	ON_WM_PAINT()
	ON_COMMAND(ID_DRAW_LINE, OnDrawLine)
	ON_COMMAND(ID_DRAW_ARC, OnDrawArc)
	ON_COMMAND(ID_DRAW_RECTANGLE, OnDrawRectangle)
	ON_COMMAND(ID_DRAW_CIRCLE, OnDrawCircle)
	ON_COMMAND(ID_DRAW_ELLIPSE, OnDrawEllipse)
	ON_COMMAND(ID_DRAW_POLYGON, OnDrawPolygon)
	ON_COMMAND(ID_DRAW_TEXT, OnDrawText)
	ON_WM_CONTEXTMENU()
	ON_COMMAND(ID_MYPRINTSETUP, OnMyprintsetup)
	ON_COMMAND(ID_MYPRINT, OnMyprint)
	ON_COMMAND(ID_MYPAGESETUP, OnMypagesetup)
END_MESSAGE_MAP()



// CChildView 消息处理程序

BOOL CChildView::PreCreateWindow(CREATESTRUCT& cs) 
{
	if (!CWnd::PreCreateWindow(cs))
		return FALSE;

	cs.dwExStyle |= WS_EX_CLIENTEDGE;
	cs.style &= ~WS_BORDER;
	cs.lpszClass = AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW|CS_DBLCLKS, 
		::LoadCursor(NULL, IDC_ARROW), reinterpret_cast<HBRUSH>(COLOR_WINDOW+1), NULL);

	return TRUE;
}

void CChildView::OnPaint() 
{
	CPaintDC dc(this); // 用于绘制的设备上下文
	
	// TODO: 在此处添加消息处理程序代码
    
	POINT point[7]={60,80,120,90,210,150,250,240,160,220,100,180,60,80};
	switch(CurrentDraw)
	{
	case DRAW_LINE:
		dc.MoveTo(100,100);dc.LineTo(400,100);break;
	case DRAW_ARC:
		dc.Arc(50,50,300,300,250,80,70,200);break;
	case DRAW_CIRCLE:
		dc.Ellipse(100,100,350,350);break;
	case DRAW_ELLIPSE:
		dc.Ellipse(100,100,350,250);break;
	case DRAW_RECTANGLE:
		dc.Rectangle(100,100,350,250);break;
	case DRAW_POLYGON:
		dc.Polygon(point,7);break;
	case DRAW_TEXT:
		dc.TextOut(200,200,"Hello,World!");break;
	}
	// 不要为绘制消息而调用 CWnd::OnPaint()
}


void CChildView::OnDrawLine()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_LINE;
	Invalidate();
}

void CChildView::OnDrawArc()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_ARC;
	Invalidate();
}

void CChildView::OnDrawRectangle()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_RECTANGLE;
	Invalidate();
}

void CChildView::OnDrawCircle()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_CIRCLE;
	Invalidate();
}

void CChildView::OnDrawEllipse()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_ELLIPSE;
	Invalidate();
}

void CChildView::OnDrawPolygon()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_POLYGON;
	Invalidate();
}

void CChildView::OnDrawText()
{
	// TODO: 在此添加命令处理程序代码
	CurrentDraw=DRAW_TEXT;
	Invalidate();
}

void CChildView::OnContextMenu(CWnd* pWnd, CPoint point)
{
	// TODO: 在此添加消息处理程序代码
	pMenu.TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON,point.x,point.y,this);

}

void CChildView::OnMyprintsetup()
{
	// TODO: 在此添加命令处理程序代码
	CPrintDialog pDlg(TRUE);    //生成“打印设置”对话框
	pDlg.DoModal();
}

void CChildView::OnMyprint()
{
	// TODO: 在此添加命令处理程序代码
	CPrintDialog pDlg(FALSE);  //生成“打印”对话框
	pDlg.DoModal();
}

void CChildView::OnMypagesetup()
{
	// TODO: 在此添加命令处理程序代码
	CPageSetupDialog pDlg;
	pDlg.DoModal();
}