static fz_error *
rendertext(fz_renderer *gc, fz_textnode *text, fz_matrix ctm)
{
fz_error *error;
fz_irect tbox;
fz_irect clip;
fz_matrix tm, trm;
fz_glyph glyph;
int i, x, y, cid;
tbox = fz_roundrect(fz_boundnode((fz_node*)text, ctm));
clip = fz_intersectirects(gc->clip, tbox);
DEBUG("text %s n=%d [%g %g %g %g];\n",
text->font->name, text->len,
text->trm.a, text->trm.b, text->trm.c, text->trm.d);
if (fz_isemptyrect(clip))
return fz_okay;
if (!(gc->flag & FOVER))
{
error = fz_newpixmapwithrect(&gc->dest, clip, 1);
if (error)
return error;
fz_clearpixmap(gc->dest);
}
tm = text->trm;
for (i = 0; i < text->len; i++)
{
cid = text->els[i].cid;
tm.e = text->els[i].x;
tm.f = text->els[i].y;
trm = fz_concat(tm, ctm);
x = fz_floor(trm.e);
y = fz_floor(trm.f);
trm.e = QUANT(trm.e - fz_floor(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - fz_floor(trm.f), VSUBPIX);
error = fz_renderglyph(gc->cache, &glyph, text->font, cid, trm);
if (error)
return error;
if (!(gc->flag & FOVER))
drawglyph(gc, gc->dest, &glyph, x, y);
else
drawglyph(gc, gc->over, &glyph, x, y);
}
return fz_okay;
}
static void
fz_drawfilltext(void *user, fz_text *text, fz_matrix ctm,
fz_colorspace *colorspace, float *color, float alpha)
{
fz_drawdevice *dev = user;
fz_colorspace *model = dev->dest->colorspace;
unsigned char colorbv[FZ_MAXCOLORS + 1];
float colorfv[FZ_MAXCOLORS];
fz_matrix tm, trm;
fz_pixmap *glyph;
int i, x, y, gid;
fz_convertcolor(colorspace, color, model, colorfv);
for (i = 0; i < model->n; i++)
colorbv[i] = colorfv[i] * 255;
colorbv[i] = alpha * 255;
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->els[i].gid;
if (gid < 0)
continue;
tm.e = text->els[i].x;
tm.f = text->els[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_renderglyph(dev->cache, text->font, gid, trm);
if (glyph)
{
drawglyph(colorbv, dev->dest, glyph, x, y, dev->scissor);
fz_droppixmap(glyph);
}
}
}
static void
fz_drawcliptext(void *user, fz_text *text, fz_matrix ctm, int accumulate)
{
fz_drawdevice *dev = user;
fz_colorspace *model = dev->dest->colorspace;
fz_bbox bbox;
fz_pixmap *mask, *dest;
fz_matrix tm, trm;
fz_pixmap *glyph;
int i, x, y, gid;
/* If accumulate == 0 then this text object is guaranteed complete */
/* If accumulate == 1 then this text object is the first (or only) in a sequence */
/* If accumulate == 2 then this text object is a continuation */
if (dev->top == STACKSIZE)
{
fz_warn("assert: too many buffers on stack");
return;
}
if (accumulate == 0)
{
/* make the mask the exact size needed */
bbox = fz_roundrect(fz_boundtext(text, ctm));
bbox = fz_intersectbbox(bbox, dev->scissor);
}
else
{
/* be conservative about the size of the mask needed */
bbox = dev->scissor;
}
if (accumulate == 0 || accumulate == 1)
{
mask = fz_newpixmapwithrect(nil, bbox);
dest = fz_newpixmapwithrect(model, bbox);
fz_clearpixmap(mask, 0);
fz_clearpixmap(dest, 0);
dev->stack[dev->top].scissor = dev->scissor;
dev->stack[dev->top].mask = mask;
dev->stack[dev->top].dest = dev->dest;
dev->scissor = bbox;
dev->dest = dest;
dev->top++;
}
else
{
mask = dev->stack[dev->top-1].mask;
}
if (!fz_isemptyrect(bbox))
{
tm = text->trm;
for (i = 0; i < text->len; i++)
{
gid = text->els[i].gid;
if (gid < 0)
continue;
tm.e = text->els[i].x;
tm.f = text->els[i].y;
trm = fz_concat(tm, ctm);
x = floorf(trm.e);
y = floorf(trm.f);
trm.e = QUANT(trm.e - floorf(trm.e), HSUBPIX);
trm.f = QUANT(trm.f - floorf(trm.f), VSUBPIX);
glyph = fz_renderglyph(dev->cache, text->font, gid, trm);
if (glyph)
{
drawglyph(nil, mask, glyph, x, y, bbox);
fz_droppixmap(glyph);
}
}
}
}
