CH2-3.rar_ch2_3

// gameFrame.cpp : implementation file // #include "stdafx.h" #include "gameFrame.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // gameFrame IMPLEMENT_DYNCREATE(gameFrame, CFrameWnd) CBrush brush[21]; CPen newPen,*oldPen; gameFrame::gameFrame() { 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 ); 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)); for(int arrayIdx=0,colorIdx=0; colorIdx<3; colorIdx++) { brush[arrayIdx++].CreateSolidBrush(color[colorIdx]); } for(int styleIdx=0; styleIdx<6; styleIdx++) { for(colorIdx=0; colorIdx<3; colorIdx++) { brush[arrayIdx++].CreateHatchBrush(style[styleIdx],color[colorIdx]); } } } gameFrame::~gameFrame() { } BEGIN_MESSAGE_MAP(gameFrame, CFrameWnd) //{{AFX_MSG_MAP(gameFrame) ON_WM_PAINT() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // gameFrame message handlers void gameFrame::OnPaint() { int x1=10, y1=10, x2=70, y2=70; CPaintDC dc(this); oldPen = dc.SelectObject(&newPen); for(int arrayIdx=0;arrayIdx<21;arrayIdx++) { dc.SelectObject(&brush[arrayIdx]); dc.Ellipse(x1,y1,x2,y2); if((arrayIdx+1)%3 == 0) { x1+=80; x2+=80; y1=10; y2=70; } else { y1+=100; y2+=100; } } dc.SelectObject(oldPen); }