static void
pdf_makewidthtable(pdf_fontdesc *fontdesc)
{
fz_font *font = fontdesc->font;
int i, k, cid, gid;
font->widthcount = 0;
for (i = 0; i < fontdesc->nhmtx; i++)
{
for (k = fontdesc->hmtx[i].lo; k <= fontdesc->hmtx[i].hi; k++)
{
cid = pdf_lookupcmap(fontdesc->encoding, k);
gid = pdf_fontcidtogid(fontdesc, cid);
if (gid > font->widthcount)
font->widthcount = gid;
}
}
font->widthcount ++;
font->widthtable = fz_malloc(sizeof(int) * font->widthcount);
memset(font->widthtable, 0, sizeof(int) * font->widthcount);
for (i = 0; i < fontdesc->nhmtx; i++)
{
for (k = fontdesc->hmtx[i].lo; k <= fontdesc->hmtx[i].hi; k++)
{
cid = pdf_lookupcmap(fontdesc->encoding, k);
gid = pdf_fontcidtogid(fontdesc, cid);
font->widthtable[gid] = fontdesc->hmtx[i].w;
}
}
}
static void
pdf_showglyph(pdf_csi *csi, int cid)
{
pdf_gstate *gstate = csi->gstate + csi->gtop;
pdf_fontdesc *fontdesc = gstate->font;
fz_matrix tsm, trm;
float w0, w1, tx, ty;
pdf_hmtx h;
pdf_vmtx v;
int gid;
int ucsbuf[8];
int ucslen;
int i;
tsm.a = gstate->size * gstate->scale;
tsm.b = 0;
tsm.c = 0;
tsm.d = gstate->size;
tsm.e = 0;
tsm.f = gstate->rise;
ucslen = 0;
if (fontdesc->tounicode)
ucslen = pdf_lookupcmapfull(fontdesc->tounicode, cid, ucsbuf);
if (ucslen == 0 && cid < fontdesc->ncidtoucs)
{
ucsbuf[0] = fontdesc->cidtoucs[cid];
ucslen = 1;
}
if (ucslen == 0 || (ucslen == 1 && ucsbuf[0] == 0))
{
ucsbuf[0] = '?';
ucslen = 1;
}
gid = pdf_fontcidtogid(fontdesc, cid);
if (fontdesc->wmode == 1)
{
v = pdf_getvmtx(fontdesc, cid);
tsm.e -= v.x * gstate->size * 0.001f;
tsm.f -= v.y * gstate->size * 0.001f;
}
trm = fz_concat(tsm, csi->tm);
/* flush buffered text if face or matrix or rendermode has changed */
if (!csi->text ||
fontdesc->font != csi->text->font ||
fontdesc->wmode != csi->text->wmode ||
fabsf(trm.a - csi->text->trm.a) > FLT_EPSILON ||
fabsf(trm.b - csi->text->trm.b) > FLT_EPSILON ||
fabsf(trm.c - csi->text->trm.c) > FLT_EPSILON ||
fabsf(trm.d - csi->text->trm.d) > FLT_EPSILON ||
gstate->render != csi->textmode)
{
pdf_flushtext(csi);
csi->text = fz_newtext(fontdesc->font, trm, fontdesc->wmode);
csi->text->trm.e = 0;
csi->text->trm.f = 0;
csi->textmode = gstate->render;
}
/* add glyph to textobject */
fz_addtext(csi->text, gid, ucsbuf[0], trm.e, trm.f);
/* add filler glyphs for one-to-many unicode mapping */
for (i = 1; i < ucslen; i++)
fz_addtext(csi->text, -1, ucsbuf[i], trm.e, trm.f);
if (fontdesc->wmode == 0)
{
h = pdf_gethmtx(fontdesc, cid);
w0 = h.w * 0.001f;
tx = (w0 * gstate->size + gstate->charspace) * gstate->scale;
csi->tm = fz_concat(fz_translate(tx, 0), csi->tm);
}
if (fontdesc->wmode == 1)
{
w1 = v.w * 0.001f;
ty = w1 * gstate->size + gstate->charspace;
csi->tm = fz_concat(fz_translate(0, ty), csi->tm);
}
}
