Frozen Fish 1: Amiga/FrozenFish-Apr94.iso/bbs/alib/d0xx/d062/hack.lha/HackIconII_Source/FontIO.c

C/C++ Source or Header | 1987-03-31 | 4.8 KB | 180 lines

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* |_o_o|\\ Copyright (c) 1987 The Software Distillery.  All Rights Reserved *
* |. o.| ||          Written by Doug Walker                                 *
* | .  | ||          The Software Distillery                                *
* | o  | ||          235 Trillingham Lane                                   *
* |  . |//           Cary, NC 27511                                         *
* ======             BBS:(919)-471-6436                                     *
\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "mydebug.h"

#include "exec/types.h"
#include "exec/memory.h"
#include "intuition/intuition.h"
#include "stdio.h"

#include "hackicon.h"

extern struct iconfont *fonts[2];
extern struct IntuiText MiscText[];
extern int fontnum;
extern USHORT colormap[];
extern struct Window *Window;
extern struct ViewPort *ViewPort;

LoadFont(name, num)
char *name;
int num;
{
   FILE *fp;
   int i;
   register struct Image *curimage;
   register struct iconfont *ifont;
   register USHORT *dataptr, *endptr;

   if(name == NULL) return(1);

   BUG(1, ("LoadFont: Enter, name=%s, num=%d\n", name, num))

   if(num<0)
   {
      for(num=0; num<MAXFONTS && fonts[num]; num++);
      if(num >= MAXFONTS)
      {
         AutoRequest(Window, &MiscText[4], NULL, &MiscText[2], 0, 0, 410, 90);
         return(1);
      }
   }
   if(fonts[num]) FreeMem(fonts[num], sizeof(struct iconfont));
   fontnum = num;

   if(!(ifont = fonts[num] = (struct iconfont *)
      AllocMem(sizeof(struct iconfont), MEMF_CHIP | MEMF_CLEAR)))
   {
      AutoRequest(Window, &MiscText[3], NULL, &MiscText[2], 0, 0, 410, 90);
      return(1);
   }

   strcpy(ifont->filename, name);

   if(NULL == (fp = fopen(name, "rb")))
   {
BUG(4, ("LoadFont: Null fp, initializing font.\n"))
      movmem(colormap, ifont->colormap, 16*sizeof(USHORT));
      ifont->firstchar = 255;
      ifont->lastchar = 0;
   }
   else
   {
BUG(4, ("LoadFont: reading color data.\n"))
      for(i=0; i<16; i++)
      {
         colormap[i] = ifont->colormap[i] = (getc(fp) << 8) | getc(fp);
BUG(9, ("LoadFont: colormap[%d] = %4x\n", i, colormap[i]))
      }
      LoadRGB4(ViewPort, colormap, 16);

      ifont->firstchar = getc(fp);
      ifont->lastchar  = getc(fp);
   }

BUG(2, ("LoadFont: firstchar=%d, lastchar=%d\n",ifont->firstchar,ifont->lastchar))

   for(i=0, curimage=ifont->images, dataptr = ifont->idata;
       i<256;
       i++, curimage++, dataptr += ILENGTH)
   {
      curimage->NextImage  = (i < 255 ? curimage+1 : NULL);
      curimage->LeftEdge   = IXCALC(i);
      curimage->TopEdge    = IYCALC(i);
      curimage->Width      = IWIDTH;
      curimage->Height     = IHEIGHT;
      curimage->Depth      = IDEPTH;
      curimage->ImageData  = dataptr;
      curimage->PlanePick  = 0x0F;
      curimage->PlaneOnOff = 0x00;
   }
BUG(8, ("LoadFont: Done calculating image structs\n"))

   if(fp)
   {
      for(dataptr= ifont->idata + (ILENGTH*ifont->firstchar),
                 endptr  = ifont->idata + (ILENGTH*ifont->lastchar);
          dataptr <= endptr;
          dataptr += ILENGTH)
             for(i=0; i<ILENGTH; i++) dataptr[i] = (getc(fp) << 8);

      fclose(fp);
   }

   DrawImage(Window->RPort, ifont->images, 0, 0);
   SetWindowTitles(Window, name, name);


   BUG(1, ("LoadFont: Exit\n"))
   return(0);
}

SaveFont(name)
char *name;
{
   FILE *fp, *fopen();
   int i, j;
   unsigned char *cptr;

   if(name == NULL) name = fonts[fontnum]->filename;

   BUG(1, ("SaveFont: save %s as %s\n", fonts[fontnum]->filename, name))

   if(!strcmp(name, fonts[fontnum]->filename)
    && !(fonts[fontnum]->flags & CHANGED) ) return(0);

   if(!(fp=fopen(name, "wb")))
   {
      AutoRequest(Window, MiscText, NULL, &MiscText[2], 0, 0, 410, 90);
      return(1);
   }

   for(i=0, cptr= (unsigned char *)colormap; i<16; i++)
   {
      putc(*(cptr++), fp);
      putc(*(cptr++), fp);
   }

   for(i = fonts[fontnum]->firstchar; i<=fonts[fontnum]->lastchar; i++)
   {
      for(cptr=(unsigned char *)(fonts[fontnum]->idata+(ILENGTH*i)), j=0;
          j<ILENGTH && !(*cptr);
          j++, cptr++);
      if(j >= ILENGTH) fonts[fontnum]->firstchar++;
      else break;
   }
   for(i = fonts[fontnum]->lastchar; i>=fonts[fontnum]->firstchar; i--)
   {
      for(cptr=(unsigned char *)(fonts[fontnum]->idata+(ILENGTH*i)), j=0;
          j<ILENGTH && !(*cptr);
          j++, cptr++);
      if(j >= ILENGTH) fonts[fontnum]->lastchar--;
      else break;
   }


   putc(fonts[fontnum]->firstchar, fp);
   putc(fonts[fontnum]->lastchar, fp);

   for(i=fonts[fontnum]->firstchar,
       cptr=(unsigned char *)(fonts[fontnum]->idata+(ILENGTH*i));
       i<=fonts[fontnum]->lastchar;
       i++)
      for(j=0; j<ILENGTH; j++, cptr+=sizeof(USHORT))
         putc(*cptr, fp);

   fclose(fp);

   fonts[fontnum]->flags &= (~CHANGED);

   return(0);
}