canvasframe.cpp

《Visual C++游戏设计入门》的配套代码

// canvasFrame.cpp : implementation file
//

#include "stdafx.h"
#include "canvasr.h"
#include "canvasFrame.h"

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

/////////////////////////////////////////////////////////////////////////////
// canvasFrame

IMPLEMENT_DYNCREATE(canvasFrame, CFrameWnd)

CBrush brush[21]; 
CPen newPen,*oldPen;

canvasFrame::canvasFrame()
{
	RECT rect;
	Create(NULL,"绘图窗口");
	CClientDC dc(this);
	int width = dc.GetDeviceCaps(HORZRES);
	int height = dc.GetDeviceCaps(VERTRES);
	GetWindowRect( &rect );
	width = ( width - ( rect.right - rect.left ))/2 ;
	height = (height - (rect.bottom - rect.top ))/2 ;
	MoveWindow( width , height , (rect.right - rect.left ) , (rect.bottom - rect.top ) ,true);

	int i=0,c,s;
	COLORREF color[3] = {RGB(255,0,0),RGB(0,255,0),RGB(0,0,255)};
	int style[6] = {HS_VERTICAL,HS_HORIZONTAL,HS_CROSS,HS_DIAGCROSS,HS_FDIAGONAL,HS_BDIAGONAL}; 
	newPen.CreatePen(PS_DASH,5,RGB(50,50,50));   //建立新画笔
	for(c=0;c<3;c++)      //建立单色画刷
	{
		brush[i].CreateSolidBrush(color[c]);
		i++;
	}
	for(s=0;s<6;s++)      //建立阴影画刷
		for(c=0;c<3;c++)
		{
			brush[i].CreateHatchBrush(style[s],color[c]);
			i++;
		}
}

canvasFrame::~canvasFrame()
{
}


BEGIN_MESSAGE_MAP(canvasFrame, CFrameWnd)
	//{{AFX_MSG_MAP(canvasFrame)
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// canvasFrame message handlers

void canvasFrame::OnPaint()
{
	CPaintDC dc(this);                 //响应WM_PAINT消息的DC
	int x1=10,y1=10,x2=70,y2=70;	
	oldPen = dc.SelectObject(&newPen); //选择新画笔
	for(int i=0;i<21;i++)              //绘制填充区块
	{
		dc.SelectObject(&brush[i]);    //选择画刷