add FontSourceWin.cpp/.h
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#ifndef HGL_GRAPH_FONT_BITMAP_CACHE_INCLUDE
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#define HGL_GRAPH_FONT_BITMAP_CACHE_INCLUDE
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#include<hgl/type/StrChar.h>
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#include<hgl/type/Map.h>
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#include<hgl/graph/font/Font.h>
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using namespace hgl;
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namespace hgl
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{
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namespace graph
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{
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/**
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* 文本位图缓冲
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*/
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class FontBitmapCache
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{
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/**
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* 字体位图数据
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*/
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struct Bitmap
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{
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int count; //使用次数
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int x,y; //图像显示偏移
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int w,h; //图像尺寸
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int adv_x,adv_y;//字符尺寸
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uint8 *data;
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};//struct Bitmap
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protected:
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Font fnt;
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MapObject<u32char,FontBitmapCache::Bitmap> chars_bitmap; ///<字符位图
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protected:
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virtual bool MakeCharBitmap(FontBitmapCache::Bitmap *,u32char)=0; ///<产生字体数据
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virtual int GetLineHeight()const=0; ///<取得行高
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public:
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FontBitmapCache(const Font &f){fnt=f;}
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virtual ~FontBitmapCache()=default;
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FontBitmapCache::Bitmap *GetCharBitmap(const u32char &); ///<取得字符位图数据
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};//class FontBitmapCache
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_FONT_BITMAP_CACHE_INCLUDE
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54
inc/hgl/graph/font/FontSource.h
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54
inc/hgl/graph/font/FontSource.h
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#ifndef HGL_GRAPH_FONT_SOURCE_INCLUDE
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#define HGL_GRAPH_FONT_SOURCE_INCLUDE
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#include<hgl/type/StrChar.h>
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#include<hgl/type/Map.h>
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#include<hgl/graph/font/Font.h>
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using namespace hgl;
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namespace hgl
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{
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namespace graph
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{
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/**
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* 字体位图数据
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*/
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struct FontBitmap
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{
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int count; //使用次数
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int x,y; //图像显示偏移
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int w,h; //图像尺寸
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int adv_x,adv_y;//字符尺寸
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uint8 *data;
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};//struct FontBitmap
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/**
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* 文字位图数据源
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*/
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class FontSource
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{
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protected:
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Font fnt;
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MapObject<u32char,FontBitmap> chars_bitmap; ///<字符位图
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protected:
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virtual bool MakeCharBitmap(FontBitmap *,u32char)=0; ///<产生字体数据
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virtual int GetLineHeight()const=0; ///<取得行高
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public:
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FontSource(const Font &f){fnt=f;}
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virtual ~FontSource()=default;
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FontBitmap *GetCharBitmap(const u32char &); ///<取得字符位图数据
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};//class FontSource
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_FONT_SOURCE_INCLUDE
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@ -1,24 +1,24 @@
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#include<hgl/graph/font/FontBitmapCache.h>
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#include<hgl/graph/font/FontSource.h>
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namespace hgl
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{
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namespace graph
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{
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FontBitmapCache::Bitmap *FontBitmapCache::GetCharBitmap(const u32char &ch)
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FontBitmap *FontSource::GetCharBitmap(const u32char &ch)
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{
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if(!this)
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return(nullptr);
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if(hgl::isspace(ch))return(nullptr); //不能显示的数据或是空格
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FontBitmapCache::Bitmap *bmp;
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FontBitmap *bmp;
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if(chars_bitmap.Get(ch,bmp))
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return bmp;
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bmp=new FontBitmapCache::Bitmap;
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bmp=new FontBitmap;
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memset(bmp,0,sizeof(FontBitmapCache::Bitmap));
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memset(bmp,0,sizeof(FontBitmap));
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if(!MakeCharBitmap(bmp,ch))
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{
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150
src/SceneGraph/font/FontSourceWin.cpp
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150
src/SceneGraph/font/FontSourceWin.cpp
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#include"FontSourceWin.h"
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namespace hgl
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{
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namespace graph
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{
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namespace
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{
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void Convert8BitGrey(uint8 *dst,uint8 *src,int w,int h,int line_bytes)
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{
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int pos;
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uint8 *sp=src,*p;
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while(h--)
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{
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pos=w;
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p=sp;
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while(pos--)
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{
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if(*p==64)*dst=255;
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else *dst=(*p)<<2;
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dst++;
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p++;
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}
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sp+=line_bytes;
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}
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}
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void ConvertBitmap(uint8 *dst,uint8 *src,int w,int h,int line_bytes)
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{
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uint8 *sp=src,*p;
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uint8 bit;
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while(h--)
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{
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p=sp;
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bit=1<<7;
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for(int i=0;i<w;i++)
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{
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*dst++=(*p&bit)?255:0;
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if(bit==0x01)
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{
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bit=1<<7;
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p++;
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}
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else bit>>=1;
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}
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sp+=line_bytes;
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}//while(h--)
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}
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}//namespace
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FontSource *CreateWinBitmapFont(const Font &f)
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{
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return(new WinBitmapFont(f));
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}
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WinBitmapFont::WinBitmapFont(const Font &f):FontSource(f)
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{
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hdc=CreateCompatibleDC(0);
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LineHeight=(fnt.height*GetDeviceCaps(hdc,LOGPIXELSY))/72;
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LineDistance=(LineHeight-fnt.height)/2;
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hfont=CreateFont( -fnt.height,
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fnt.width,
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0,
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0,
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fnt.bold?FW_BOLD:FW_REGULAR,
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fnt.italic,
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false,
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0,
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DEFAULT_CHARSET,
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OUT_DEFAULT_PRECIS,
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CLIP_DEFAULT_PRECIS,
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ANTIALIASED_QUALITY,
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FF_DONTCARE,
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fnt.name);
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SelectObject(hdc,hfont);
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if(!fnt.anti||fnt.height<=10) //<=10象素强制用无抗矩齿字体
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ggo=GGO_BITMAP;
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else
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ggo=GGO_GRAY8_BITMAP;
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buffer_size=fnt.width*fnt.height*4;
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buffer=new uint8[buffer_size];
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}
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WinBitmapFont::~WinBitmapFont()
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{
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delete[] buffer;
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DeleteObject(hfont);
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DeleteDC(hdc);
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}
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bool WinBitmapFont::MakeCharBitmap(FontBitmap *bmp,u32char ch)
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{
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if(ch>0xFFFF)
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return(false);
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memset(&gm,0,sizeof(GLYPHMETRICS));
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memset(&mat,0,sizeof(MAT2));
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mat.eM11.value = 1;
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mat.eM22.value = 1;
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const int size=GetGlyphOutline(hdc,ch,ggo,&gm,0,0,&mat);
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if(size<=0)return(false);
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if(size>buffer_size)
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{
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delete[] buffer;
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buffer_size=size;
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buffer=new uint8[buffer_size];
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}
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GetGlyphOutline(hdc,ch,ggo,&gm,buffer_size,buffer,&mat);
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bmp->w=gm.gmBlackBoxX;
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bmp->h=gm.gmBlackBoxY;
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bmp->x=gm.gmptGlyphOrigin.x;
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bmp->y=fnt.height-gm.gmptGlyphOrigin.y-LineDistance;
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bmp->adv_x=gm.gmCellIncX;
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bmp->adv_y=gm.gmCellIncY;
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bmp->data=new uint8[bmp->w*bmp->h];
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if(ggo==GGO_GRAY8_BITMAP)
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Convert8BitGrey(bmp->data,buffer,gm.gmBlackBoxX,gm.gmBlackBoxY,size/bmp->h);
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else
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ConvertBitmap(bmp->data,buffer,gm.gmBlackBoxX,gm.gmBlackBoxY,size/bmp->h);
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return(true);
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}
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}//namespace graph
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}//namespace hgl
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39
src/SceneGraph/font/FontSourceWin.h
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39
src/SceneGraph/font/FontSourceWin.h
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#ifndef HGL_GRAPH_FONT_SOURCE_WINDOWS_INCLUDE
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#define HGL_GRAPH_FONT_SOURCE_WINDOWS_INCLUDE
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#include<hgl/graph/font/FontSource.h>
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#include<windows.h>
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namespace hgl
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{
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namespace graph
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{
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class WinBitmapFont:public FontSource
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{
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HDC hdc;
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HFONT hfont;
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GLYPHMETRICS gm;
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MAT2 mat;
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uint ggo;
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unsigned char *buffer;
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int buffer_size;
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protected:
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int LineHeight;
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int LineDistance;
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public:
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WinBitmapFont(const Font &);
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~WinBitmapFont();
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bool MakeCharBitmap(FontBitmap *,u32char) override; ///<产生字体数据
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int GetLineHeight()const override{return LineHeight;} ///<取得行高
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};//class WinBitmapFont
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_FONT_SOURCE_WINDOWS_INCLUDE
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