hgefont.cpp
上传用户:maxiaolivb
上传日期:2022-06-07
资源大小:915k
文件大小:7k
- /*
- ** Haaf's Game Engine 1.5
- ** Copyright (C) 2003-2004, Relish Games
- ** hge.relishgames.com
- **
- ** hgeFont helper class implementation
- */
- #include "....includehgefont.h"
- #include <stdlib.h>
- #include <stdio.h>
- const char FNTHEADERTAG[]="[HGEFONT]";
- const char FNTBITMAPTAG[]="Bitmap";
- const char FNTCHARTAG[]="Char";
- HGE *hgeFont::hge=0;
- hgeFont::hgeFont(const char *szFont)
- {
- void *data;
- DWORD size;
- char *desc, *pdesc;
- char linebuf[256];
- char buf[MAX_PATH], *pbuf;
- char chr;
- int i, x, y, w, h, a, c;
- // Setup variables
-
- hge=hgeCreate(HGE_VERSION);
- fHeight=0.0f;
- fScale=1.0f;
- fRot=0.0f;
- fTracking=0.0f;
- fSpacing=1.0f;
- hTexture=0;
- fZ=0.5f;
- nBlend=BLEND_COLORMUL | BLEND_ALPHABLEND | BLEND_NOZWRITE;
- dwCol=0xFFFFFFFF;
- ZeroMemory( &letters, sizeof(letters) );
- ZeroMemory( &pre, sizeof(letters) );
- ZeroMemory( &post, sizeof(letters) );
-
- // Load font description
- data=hge->Resource_Load(szFont, &size);
- if(!data) return;
- desc = new char[size+1];
- memcpy(desc,data,size);
- desc[size]=0;
- hge->Resource_Free(data);
- pdesc=_get_line(desc,linebuf);
- if(strcmp(linebuf, FNTHEADERTAG))
- {
- hge->System_Log("Font %s has incorrect format.", szFont);
- delete[] desc;
- return;
- }
- // Parse font description
- while((pdesc=_get_line(pdesc,linebuf)))
- {
- if(!strncmp(linebuf, FNTBITMAPTAG, sizeof(FNTBITMAPTAG)-1 ))
- {
- strcpy(buf,szFont);
- pbuf=strrchr(buf,'\');
- if(!pbuf) pbuf=strrchr(buf,'/');
- if(!pbuf) pbuf=buf;
- else pbuf++;
- if(!sscanf(linebuf, "Bitmap = %s", pbuf)) continue;
- hTexture=hge->Texture_Load(buf);
- if(!hTexture)
- {
- delete[] desc;
- return;
- }
- }
- else if(!strncmp(linebuf, FNTCHARTAG, sizeof(FNTCHARTAG)-1 ))
- {
- pbuf=strchr(linebuf,'=');
- if(!pbuf) continue;
- pbuf++;
- while(*pbuf==' ') pbuf++;
- if(*pbuf=='"')
- {
- pbuf++;
- i=(unsigned char)*pbuf++;
- pbuf++; // skip "
- }
- else
- {
- i=0;
- while((*pbuf>='0' && *pbuf<='9') || (*pbuf>='A' && *pbuf<='F') || (*pbuf>='a' && *pbuf<='f'))
- {
- chr=*pbuf;
- if(chr >= 'a') chr-='a'-':';
- if(chr >= 'A') chr-='A'-':';
- chr-='0';
- if(chr>0xF) chr=0xF;
- i=(i << 4) | chr;
- pbuf++;
- }
- if(i<0 || i>255) continue;
- }
- sscanf(pbuf, " , %d , %d , %d , %d , %d , %d", &x, &y, &w, &h, &a, &c);
- letters[i] = new hgeSprite(hTexture, (float)x, (float)y, (float)w, (float)h);
- pre[i]=(float)a;
- post[i]=(float)c;
- if(h>fHeight) fHeight=(float)h;
- }
- }
- delete[] desc;
- }
- hgeFont::hgeFont(const hgeFont &fnt)
- {
- int i;
- hge=hgeCreate(HGE_VERSION);
- hTexture=fnt.hTexture;
- fHeight=fnt.fHeight;
- fScale=fnt.fScale;
- fRot=fnt.fRot;
- fTracking=fnt.fTracking;
- fSpacing=fnt.fSpacing;
- dwCol=fnt.dwCol;
- fZ=fnt.fZ;
- nBlend=fnt.nBlend;
- for(i=0; i<256; i++)
- {
- if(fnt.letters[i]) letters[i]=new hgeSprite(*fnt.letters[i]);
- else letters[i]=0;
- pre[i]=fnt.pre[i];
- post[i]=fnt.post[i];
- }
- }
- hgeFont& hgeFont::operator= (const hgeFont &fnt)
- {
- int i;
-
- if(this!=&fnt)
- {
- hTexture=fnt.hTexture;
- fHeight=fnt.fHeight;
- fScale=fnt.fScale;
- fRot=fnt.fRot;
- fTracking=fnt.fTracking;
- fSpacing=fnt.fSpacing;
- dwCol=fnt.dwCol;
- fZ=fnt.fZ;
- nBlend=fnt.nBlend;
- for(i=0; i<256; i++)
- {
- if(letters[i]) delete letters[i];
- if(fnt.letters[i]) letters[i]=new hgeSprite(*fnt.letters[i]);
- else letters[i]=0;
- pre[i]=fnt.pre[i];
- post[i]=fnt.post[i];
- }
- }
- return *this;
- }
- hgeFont::~hgeFont()
- {
- for(int i=0; i<256; i++)
- if(letters[i]) delete letters[i];
- if(hTexture) hge->Texture_Free(hTexture);
- hge->Release();
- }
- void hgeFont::Render(float x, float y, int align, const char *string)
- {
- int i;
- float fx=x;
- align &= HGETEXT_HORZMASK;
- if(align==HGETEXT_RIGHT) fx-=GetStringWidth(string);
- if(align==HGETEXT_CENTER) fx-=int(GetStringWidth(string)/2.0f);
- while(*string)
- {
- if(*string=='n')
- {
- y+=int(fHeight*fScale*fSpacing);
- fx=x;
- if(align==HGETEXT_RIGHT) fx-=GetStringWidth(string+1);
- if(align==HGETEXT_CENTER) fx-=int(GetStringWidth(string+1)/2.0f);
- }
- else
- {
- i=(unsigned char)*string;
- if(!letters[i]) i='?';
- if(letters[i])
- {
- fx+=pre[i]*fScale;
- letters[i]->RenderEx(fx, y, fRot, fScale);
- fx+=(letters[i]->GetWidth()+post[i]+fTracking)*fScale;
- }
- }
- string++;
- }
- }
- void hgeFont::printf(float x, float y, int align, const char *format, ...)
- {
- char *pArg=(char *) &format+sizeof(format);
- vsprintf(buffer, format, pArg);
- Render(x,y,align,buffer);
- }
- void hgeFont::printfb(float x, float y, float w, float h, int align, const char *format, ...)
- {
- char chr, *pbuf, *prevword, *linestart;
- int i,lines=0;
- float tx, ty, hh, ww;
- char *pArg=(char *) &format+sizeof(format);
- vsprintf(buffer, format, pArg);
- linestart=buffer;
- pbuf=buffer;
- prevword=0;
- for(;;)
- {
- i=0;
- while(pbuf[i] && pbuf[i]!=' ' && pbuf[i]!='n') i++;
- chr=pbuf[i];
- pbuf[i]=0;
- ww=GetStringWidth(linestart);
- pbuf[i]=chr;
- if(ww > w)
- {
- if(pbuf==linestart)
- {
- pbuf[i]='n';
- linestart=&pbuf[i+1];
- }
- else
- {
- *prevword='n';
- linestart=prevword+1;
- }
- lines++;
- }
- if(pbuf[i]=='n')
- {
- prevword=&pbuf[i];
- linestart=&pbuf[i+1];
- pbuf=&pbuf[i+1];
- lines++;
- continue;
- }
- if(!pbuf[i]) {lines++;break;}
- prevword=&pbuf[i];
- pbuf=&pbuf[i+1];
- }
-
- tx=x;
- ty=y;
- hh=fHeight*fSpacing*fScale*lines;
- switch(align & HGETEXT_HORZMASK)
- {
- case HGETEXT_LEFT: break;
- case HGETEXT_RIGHT: tx+=w; break;
- case HGETEXT_CENTER: tx+=int(w/2); break;
- }
- switch(align & HGETEXT_VERTMASK)
- {
- case HGETEXT_TOP: break;
- case HGETEXT_BOTTOM: ty+=h-hh; break;
- case HGETEXT_MIDDLE: ty+=int((h-hh)/2); break;
- }
- Render(tx,ty,align,buffer);
- }
- float hgeFont::GetStringWidth(const char *string) const
- {
- int i;
- float w=0;
- while(*string && *string!='n')
- {
- i=(unsigned char)*string;
- if(!letters[i]) i='?';
- if(letters[i]) w+=letters[i]->GetWidth()+pre[i]+post[i]+fTracking;
- string++;
- }
- return w*fScale;
- }
- void hgeFont::SetColor(DWORD col)
- {
- dwCol=col;
- for(int i=0;i<256;i++) if(letters[i]) letters[i]->SetColor(col);
- }
- void hgeFont::SetZ(float z)
- {
- fZ=z;
- for(int i=0;i<256;i++) if(letters[i]) letters[i]->SetZ(z);
- }
- void hgeFont::SetBlendMode(int blend)
- {
- nBlend=blend;
- for(int i=0;i<256;i++) if(letters[i]) letters[i]->SetBlendMode(blend);
- }
- char *hgeFont::_get_line(char *file, char *line)
- {
- int i=0;
- while(file[i] && file[i]!='n' && file[i]!='r')
- {
- line[i]=file[i];
- i++;
- }
- line[i]=0;
- while(file[i] && (file[i]=='n' || file[i]=='r')) i++;
- if(file[i]) return file+i;
- else return 0;
- }