[游戏学习24] MFC 各种绘图 字体学习

 

>_<:这里包含字体设置及各种绘图，只要稍微看一下代码就能理解，这里不多介绍

 

>_<:Hello.h

#include<afxwin.h>
class CMyApp:public CWinApp
{
public:
    virtual BOOL InitInstance();
};
class CMainWindow:public CFrameWnd
{
public:
    CMainWindow();
protected:
    afx_msg void OnPaint();
    afx_msg void OnLButtonDown(UINT m_nFlags,CPoint point);
    DECLARE_MESSAGE_MAP();
};

>_<:Hello.cpp

#include<afxwin.h>
#include<math.h>
#include"Hello.h"
#define SEGMENTS 500
#define PI 3.1415926

int PenStyle[7]={PS_SOLID,PS_DASH,PS_DOT,PS_DASHDOT,PS_DASHDOTDOT,PS_NULL,PS_INSIDEFRAME};//实线\宽\窄\宽+窄\宽+2窄\没有\实线不外伸
int PenNum=0;
int BrushStye[6]={HS_BDIAGONAL,HS_FDIAGONAL,HS_CROSS,HS_HORIZONTAL,HS_DIAGCROSS,HS_VERTICAL};//45\135\90交叉\0\45交叉\90
int BrushNum=0;

CMyApp myApp;
//////////////////////////////////////////////
//CMyApp member function
BOOL CMyApp::InitInstance()                   //初始化函数
{
    m_pMainWnd=new CMainWindow;
    m_pMainWnd->ShowWindow(m_nCmdShow);
    m_pMainWnd->UpdateWindow();
    return TRUE;
}
/////////////////////////////////////////////
//CMainWindow message map and member function
BEGIN_MESSAGE_MAP(CMainWindow,CFrameWnd)           //消息映射
    ON_WM_PAINT()
    ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()

CMainWindow::CMainWindow()      //创建窗口
{
    Create(NULL,_T("The Hello"),WS_OVERLAPPED,CRect(20,40,640,440));//CFrameWnd下的成员函数8个参数，6个默认
}                               //这个参数产生垂直滚动条

void CMainWindow::OnPaint()
{

    CRect rect;
    GetClientRect(&rect);

    /*72点，Arial，并带有下拉阴影生成的“Hello MFC" 
    CFont font;
    font.CreatePointFont(720,_T("Arial"));//创建72点，Arial字体

    CPaintDC dc(this);
    dc.SelectObject(&font);
    dc.SetBkMode(TRANSPARENT);//背景模式 设为透明

    CString string=_T("Hello MFC");

    rect.OffsetRect(16,16);//从窗口中心向右向下偏移几个像素点的位置
    dc.SetTextColor(RGB(192,192,192));
    dc.DrawText(string,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);

    rect.OffsetRect(-16,-16);
    dc.SetTextColor(RGB(0,0,0));
    dc.DrawText(string,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);//单行、水平、竖直居中的文本
    */

    /*LOFGFONT 自定义字体 呈现出旋转效果
    CPaintDC dc(this);
    dc.SetViewportOrg(rect.Width()/2,rect.Height()/2);
    dc.SetBkMode(TRANSPARENT);

    for(int i=0;i<3600;i+=360){
        LOGFONT lf;//自己创建一种字体
        ::ZeroMemory (&lf,sizeof(lf));
        lf.lfHeight=180;     //26个像素点
        lf.lfWeight=FW_BOLD; //粗黑
        //lf.lfItalic=TRUE;    //倾斜
        lf.lfEscapement=i;     //配合使用每次旋转36度
        lf.lfOrientation=i;
        ::lstrcpy(lf.lfFaceName,_T("Arial"));
        CFont font;
        font.CreatePointFontIndirect(&lf);

        CFont* pOldFont=dc.SelectObject(&font);
        dc.TextOutA(0,0,CString(_T("Hello,MFC")));
        dc.SelectObject(pOldFont);
    }
    */
}

void CMainWindow::OnLButtonDown(UINT m_nFlags,CPoint point)//点击鼠标左键画图
{
    //CClientDC dc(this);
    CPaintDC dc(this);
    CRect rect;
    GetClientRect(&rect);
    dc.Rectangle(rect);
    

    //dc.SetViewportOrg(rect.Width()/2,rect.Height()/2);
    

    //dc.SetROP2(R2_BLACK);//绘图模式：颜色操作；2.1.3
    //dc.MoveTo(rect.left,rect.top);
    //dc.LineTo(rect.right,rect.bottom);

    //POINT aPoint[5]={0,0,0,100,100,100,100,0,0,0};
    //dc.Polyline(aPoint,5);         //将一系列点用线段连起来

    //POINT bPoint[4]={0,100,100,100,100,0};
    //dc.MoveTo(0,0);
    //dc.PolylineTo(bPoint,4);          //从当前位置开始将一系列的点用线段连起来，并将当前位置移折致折线的终点
    
    //int nWidth=rect.Width();            //画正弦曲线
    //int nHeight=rect.Height();

    //CPoint aPoint[SEGMENTS];
    //for(int i=0;i<SEGMENTS;i++){
    //    aPoint[i].x=(i*nWidth)/SEGMENTS;
    //    aPoint[i].y=(int)((nHeight/2)*(1-(sin((2*PI*i)/SEGMENTS))));
    //}
    //dc.Polyline(aPoint,SEGMENTS);

    /*画笔的创建和加载
    CPen cPen(PenStyle[(PenNum++)%7],1,RGB(192,0,0));//==cPen.CreatePen(...);
    dc.SelectObject(&cPen);
    CBrush cBrush(BrushStye[(BrushNum++)%6],RGB(255,0,0));
    dc.SelectObject(&cBrush);
    */

    /*扩展笔____必须是通路
    LOGBRUSH lb;
    lb.lbStyle=BS_SOLID;
    lb.lbColor=RGB(0,255,0);
    CPen pen(PS_GEOMETRIC|PenStyle[(PenNum++)%7]|PS_ENDCAP_FLAT|
        PS_JOIN_ROUND,3,&lb);
    CPen* pOldPen=dc.SelectObject(&pen);
    */


    /*画刷原点
    CPoint point(x1,y1);     //矩形左上角的逻辑坐标
    dc.LPtoDP(&point);       //逻辑坐标转换成设备坐标     
    point.x %= 8;            
    point.y %= 8;
    cBrush.UnrealizeObject();//允许画刷原点移动
    dc.SetBrushOrg(point);   //0~7之间
    dc.SelectObject(&cBrush);
    dc.Rectangle(x1,y1,x2,y2);
    */


    /*建立通路
    dc.BeginPath();
    dc.MoveTo(0,0);
    dc.LineTo(100,200);
    dc.LineTo(200,100);
    dc.CloseFigure();
    dc.EndPath();
    dc.StrokePath();
    */


    /*ARC
    CRect rect0(0,0,200,100);
    CPoint cPoint1(0,0);
    CPoint cPoint2(200,100);
    dc.Rectangle(rect0);
    dc.Arc(rect0,cPoint1,cPoint2);//外接矩形+从中心引出的两个边界线所夹的范围
    dc.MoveTo(0,0);
    dc.LineTo(200,100);

    CRect rect1(0,102,200,202);
    CPoint cPoint3(0,102);
    CPoint cPoint4(200,202);    
    dc.Rectangle(rect1);
    dc.ArcTo(rect1,cPoint3,cPoint4);
    CPoint cPointNow=dc.GetCurrentPosition();//终点坐标
    */

    /*纳克
    POINT aPoint1[4]={120,100,120,200,250,150,500,40};
    POINT aPoint2[4]={120,100,50,350,250,200,500,40};
    dc.PolyBezier(aPoint1,4);
    dc.PolyBezier(aPoint2,4);
    */



    //dc.SetMapMode(MM_TEXT);//映射模式2.1.4 按比例缩放输出
    //dc.Ellipse(0,0,100,100);//矩形内切圆（弧）
    //dc.Ellipse(rect.right-100,rect.bottom-100,rect.right,rect.bottom);
    //dc.Ellipse(point.x,point.y,point.x+100,point.y+100);//鼠标位置

    //dc.SetMapMode(MM_ISOTROPIC);//可编程映射模式，自定义比例缩放（MM_ANISOTROPIC单位长度可以不同；MM_ISOTROPIC单位长度相同）
    //dc.SetWindowExt(500,500);     //设置窗口逻辑值为（0，0）到（500，500）
    //dc.SetViewportExt(rect.Width(),rect.Height());
    //dc.Ellipse(0,0,500,500);

}