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); } }
fz_error * showglyph(pdf_csi *csi, int cid) { pdf_gstate *gstate = csi->gstate + csi->gtop; pdf_font *font = gstate->font; fz_error *error; fz_matrix tsm, trm; float w0, w1, tx, ty; fz_hmtx h; fz_vmtx v; tsm.a = gstate->size * gstate->scale; tsm.b = 0; tsm.c = 0; tsm.d = gstate->size; tsm.e = 0; tsm.f = gstate->rise; if (font->super.wmode == 1) { v = fz_getvmtx((fz_font*)font, cid); tsm.e -= v.x * gstate->size / 1000.0; tsm.f -= v.y * gstate->size / 1000.0; } trm = fz_concat(tsm, csi->tm); /* flush buffered text if face or matrix or rendermode has changed */ if (!csi->text || ((fz_font*)font) != csi->text->font || fabs(trm.a - csi->text->trm.a) > FLT_EPSILON || fabs(trm.b - csi->text->trm.b) > FLT_EPSILON || fabs(trm.c - csi->text->trm.c) > FLT_EPSILON || fabs(trm.d - csi->text->trm.d) > FLT_EPSILON || gstate->render != csi->textmode) { error = pdf_flushtext(csi); if (error) return fz_rethrow(error, "cannot finish text node (face/matrix change)"); error = fz_newtextnode(&csi->text, (fz_font*)font); if (error) return fz_rethrow(error, "cannot create text node"); csi->text->trm = trm; csi->text->trm.e = 0; csi->text->trm.f = 0; csi->textmode = gstate->render; } /* add glyph to textobject */ error = fz_addtext(csi->text, cid, trm.e, trm.f); if (error) return fz_rethrow(error, "cannot add glyph to text node"); if (font->super.wmode == 0) { h = fz_gethmtx((fz_font*)font, cid); w0 = h.w / 1000.0; tx = (w0 * gstate->size + gstate->charspace) * gstate->scale; csi->tm = fz_concat(fz_translate(tx, 0), csi->tm); } else { w1 = v.w / 1000.0; ty = w1 * gstate->size + gstate->charspace; csi->tm = fz_concat(fz_translate(0, ty), csi->tm); } return fz_okay; }