src/x11drawstr.c

   1 static void k8t_DrawString (K8Term *term, const char *s, const K8TGlyph *base, int x, int y, int charlen, int bytelen) {
   2   if (term != NULL) {
   3     int fg = base->fg, bg = base->bg, temp;
   4     int winx = x*xw.cw, winy = y*xw.ch+dc.font[0].ascent, width = charlen*xw.cw;
   5     XFontSet fontset = dc.font[0].set;
   6     int defF = base->attr&K8T_ATTR_DEFFG, defB = base->attr&K8T_ATTR_DEFBG;
   7     //
   8     /* only switch default fg/bg if term is in RV mode */
   9     if (K8T_ISSET(term, K8T_MODE_REVERSE)) {
  10       if (defF) fg = term->defbg;
  11       if (defB) bg = term->deffg;
  12     }
  13     if (base->attr&K8T_ATTR_REVERSE) defF = defB = 0;
  14     if (base->attr&K8T_ATTR_BOLD) {
  15       if (defF && defB && defaultBoldFG >= 0) fg = defaultBoldFG;
  16       else if (fg < 8) fg += 8;
  17       fontset = dc.font[1].set;
  18     }
  19     if ((base->attr&K8T_ATTR_UNDERLINE) && defaultUnderlineFG >= 0) {
  20       if (defF && defB) fg = defaultUnderlineFG;
  21     }
  22     //
  23     if (base->attr&K8T_ATTR_REVERSE) { temp = fg; fg = bg; bg = temp; }
  24     //
  25     XSetBackground(xw.dpy, dc.gc, getColor(bg));
  26     XSetForeground(xw.dpy, dc.gc, getColor(fg));
  27     //
  28     /*
  29     {
  30       FILE *fo = fopen("zlog.log", "ab");
  31       fprintf(fo, "k8t_DrawString: x=%d; y=%d; charlen=%d; bytelen=%d\n", x, y, charlen, bytelen);
  32       fclose(fo);
  33     }
  34     */
  35     //
  36     if (K8T_ISGFX(base->attr)) {
  37       XmbDrawImageString(xw.dpy, term->picbuf, fontset, dc.gc, winx, winy, s, bytelen);
  38     } else if (!needConversion) {
  39       XmbDrawImageString(xw.dpy, term->picbuf, fontset, dc.gc, winx, winy, s, bytelen);
  40     } else {
  41       if (bytelen > 0) {
  42         //k8: dunno why, but Xutf8DrawImageString() ignores ascii (at least for terminus)
  43         const char *pos = s;
  44         int xpos = winx;
  45         //
  46         while (pos < s+bytelen) {
  47           const char *e;
  48           int clen;
  49           //
  50           if ((unsigned char)(pos[0]) < 128) {
  51             for (e = pos+1; e < s+bytelen && (unsigned char)(*e) < 128; ++e) ;
  52             clen = e-pos;
  53             XmbDrawImageString(xw.dpy, term->picbuf, fontset, dc.gc, xpos, winy, pos, e-pos);
  54             /*
  55             {
  56               FILE *fo = fopen("zlog.log", "ab");
  57               fprintf(fo, " norm: clen=%d (%d); [", clen, (int)(e-pos));
  58               fwrite(pos, 1, e-pos, fo);
  59               fprintf(fo, "]\n");
  60               fclose(fo);
  61             }
  62             */
  63           } else {
  64             for (clen = 0, e = pos; e < s+bytelen && (unsigned char)(*e) >= 128; ++e) {
  65               if (((unsigned char)(e[0])&0xc0) == 0xc0) ++clen;
  66             }
  67             Xutf8DrawImageString(xw.dpy, term->picbuf, fontset, dc.gc, xpos, winy, pos, e-pos);
  68             /*
  69             {
  70               FILE *fo = fopen("zlog.log", "ab");
  71               fprintf(fo, " utf8: clen=%d (%d); [", clen, (int)(e-pos));
  72               fwrite(pos, 1, e-pos, fo);
  73               fprintf(fo, "]\n");
  74               fclose(fo);
  75             }
  76             */
  77           }
  78           xpos += xw.cw*clen;
  79           pos = e;
  80         }
  81       }
  82     }
  83     //
  84     if (opt_drawunderline && (base->attr&K8T_ATTR_UNDERLINE)) {
  85       XDrawLine(xw.dpy, term->picbuf, dc.gc, winx, winy+1, winx+width-1, winy+1);
  86     }
  87   }
  88 }