#include "StdAfx.h"
#include "FontTrueType.h"
#include "LogMgr.h"

vector<CString> TrueTypeVec;//用来读取字体的容器
/*回调函数，枚举系统已经安装的字体*/
BOOL CALLBACK  EnumWinFontCallBackEx(ENUMLOGFONTEX* pelf, NEWTEXTMETRICEX* lpntm, int FontType, LPVOID pThis)  
{  
    if(FontType&RASTER_FONTTYPE)
    {
        return TRUE;
    }
    CString str;  
    if (FontType&TRUETYPE_FONTTYPE)
    {
        str=((pelf)->elfLogFont.lfFaceName);
    }
    TrueTypeVec.push_back(str);
    return TRUE;
}

CFontTrueType::CFontTrueType(void)
{
}
CFontTrueType::~CFontTrueType(void)
{
}
void CFontTrueType::Initialize()
{
    HDC hDC;
    hDC=::GetWindowDC(NULL);
    LOGFONT lf;
    
    memset(&lf,0,sizeof(LOGFONT));
    lf.lfCharSet=GB2312_CHARSET;
    ::EnumFontFamiliesEx(hDC, &lf,(FONTENUMPROC)EnumWinFontCallBackEx,(LPARAM)this,(DWORD) 0);
    ::ReleaseDC(NULL,hDC);
    //导出临时容器
    int size = TrueTypeVec.size();
    for(int i=0;i<size;i++)
    {
         CString str = TrueTypeVec[i].Left(1);
         if(str!=_T("@"))//删除@ 开头的字体
         {
             AddTypeName(TrueTypeVec[i]);
         }
    }
}
void CFontTrueType::CreatCharVec(char *pChar,vector<PointType>  &PonitVec)
{
     CClientDC dc(NULL);
     CDC *pDC = &dc;

     LOGFONT lf;
     memset(&lf, 0, sizeof(lf));
     lf.lfHeight = 1000;//尺寸越大线条平滑度越好
     lf.lfWeight = FW_NORMAL;
     lf.lfOutPrecision = OUT_TT_ONLY_PRECIS;
     lf.lfCharSet = GB2312_CHARSET;
     //字体名字
      _tcscpy(lf.lfFaceName, _T(GetCurFontName()));
     
     // create and select it
     CFont newFont;
     if (!newFont.CreateFontIndirect(&lf))
        return;
     CFont* pOldFont = pDC->SelectObject(&newFont);

     pDC->SetBkMode(TRANSPARENT);//背景透明
     //开始一个路径 
     pDC->BeginPath(); 
     pDC->TextOut(0, 0, pChar);
     pDC->EndPath();//结束路径
     
     //将曲线转化为线段输出
     pDC->FlattenPath();//将一个路径中的所有曲线都转换成线段
     int Count=pDC->GetPath(NULL,NULL,0);//获取路径顶点数      
     CPoint* pPoin=new CPoint[Count];
     BYTE* pByte=new BYTE[Count];
     CPoint endpoint;
     pDC->GetPath(pPoin,pByte,Count);

     PointType PointData;
     for(int i=0;i<Count;i++)
     {
         //按点绘制
         switch(pByte[i])
         {
           case PT_MOVETO:
                PointData.first.x = pPoin[i].x;
                PointData.first.y = pPoin[i].y;
                PointData.second = true;
                PonitVec.push_back(PointData);

                endpoint=pPoin[i];
                break;
           case PT_LINETO:
                PointData.first.x = pPoin[i].x;
                PointData.first.y = pPoin[i].y;
                PointData.second = false;
                PonitVec.push_back(PointData);
                break;
           case PT_LINETO|PT_CLOSEFIGURE://闭合曲线
                PointData.first.x = endpoint.x;
                PointData.first.y = endpoint.y;
                PointData.second = false;
                PonitVec.push_back(PointData);
                break;
         }
     }
     delete[] pPoin;
     delete[] pByte;
         
     pDC->SelectObject(pOldFont);
     //垂直镜像数据
     Mirror(PonitVec);
}
//垂直镜像数据
void CFontTrueType::Mirror(vector<PointType>  &PonitVec)
{
    int size = PonitVec.size();
    for(int i=0;i<size;i++)
    {
        PonitVec[i].first.y = PonitVec[i].first.y+(0-PonitVec[i].first.y)*2;
    }
}