int renderTruetypeSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
symbolStyleObj *s)
{
int unicode;
cairo_glyph_t glyph;
cairo_text_extents_t extents;
cairo_matrix_t trans;
double ox,oy;
cairoCacheData *cache = MS_IMAGE_RENDERER_CACHE(img);
cairo_renderer *r = CAIRO_RENDERER(img);
faceCacheObj *face = getFontFace(cache,symbol->full_font_path);
if(!face) return MS_FAILURE;
cairo_save(r->cr);
cairo_set_font_face(r->cr,face->face);
cairo_set_font_size(r->cr,s->scale*96/72.0);
msUTF8ToUniChar(symbol->character, &unicode);
if (face->ftface->charmap &&
face->ftface->charmap->encoding == FT_ENCODING_MS_SYMBOL)
unicode |= 0xf000;
glyph.index = FT_Get_Char_Index(face->ftface, unicode);
glyph.x=0;
glyph.y=0;
cairo_glyph_extents(r->cr,&glyph,1,&extents);
ox=extents.x_bearing+extents.width/2.;
oy=extents.y_bearing+extents.height/2.;
cairo_matrix_init_rotate(&trans,-s->rotation);
cairo_matrix_transform_point(&trans,&ox,&oy);
/* cairo_translate(cr,-extents.width/2,-extents.height/2); */
cairo_translate(r->cr,x-ox,y-oy);
cairo_rotate(r->cr, -s->rotation);
cairo_glyph_path(r->cr,&glyph,1);
if (s->outlinewidth) {
msCairoSetSourceColor(r->cr, s->outlinecolor);
cairo_set_line_width(r->cr, s->outlinewidth + 1);
cairo_stroke_preserve(r->cr);
}
if(s->color) {
msCairoSetSourceColor(r->cr, s->color);
cairo_fill_preserve(r->cr);
}
cairo_new_path(r->cr);
cairo_restore(r->cr);
return MS_SUCCESS;
}
int renderGlyphs2Cairo(imageObj *img, textPathObj *tp, colorObj *c, colorObj *oc, int ow) {
cairo_renderer *r = CAIRO_RENDERER(img);
cairoCacheData *cache = MS_IMAGE_RENDERER_CACHE(img);
cairoFaceCache *cairo_face = NULL;
FT_Face prevface = NULL;
int g;
cairo_set_font_size(r->cr,MS_NINT(tp->glyph_size * 96.0/72.0));
for(g=0;g<tp->numglyphs;g++) {
glyphObj *gl = &tp->glyphs[g];
cairo_glyph_t glyph;
/* load the glyph's face into cairo, if not already present */
if(gl->face->face != prevface) {
cairo_face = getCairoFontFace(cache,gl->face->face);
cairo_set_font_face(r->cr, cairo_face->face);
cairo_set_font_options(r->cr,cairo_face->options);
prevface = gl->face->face;
cairo_set_font_size(r->cr,MS_NINT(tp->glyph_size * 96.0/72.0));
}
cairo_save(r->cr);
cairo_translate(r->cr,gl->pnt.x,gl->pnt.y);
if(gl->rot != 0.0)
cairo_rotate(r->cr, -gl->rot);
glyph.x = glyph.y = 0;
glyph.index = gl->glyph->key.codepoint;
cairo_glyph_path(r->cr,&glyph,1);
cairo_restore(r->cr);
}
if (oc) {
cairo_save(r->cr);
msCairoSetSourceColor(r->cr, oc);
cairo_set_line_width(r->cr, ow + 1);
cairo_stroke_preserve(r->cr);
cairo_restore(r->cr);
}
if(c) {
msCairoSetSourceColor(r->cr, c);
cairo_fill(r->cr);
}
cairo_new_path(r->cr);
return MS_SUCCESS;
}
int renderGlyphsCairo(imageObj *img,double x, double y, labelStyleObj *style, char *text) {
cairo_renderer *r = CAIRO_RENDERER(img);
cairoCacheData *cache = MS_IMAGE_RENDERER_CACHE(img);
faceCacheObj *face = getFontFace(cache,style->font);
char *utfptr=text;
int i,has_kerning,unicode;
unsigned long previdx=0;
int numglyphs = msGetNumGlyphs(text);
cairo_glyph_t glyph;
cairo_text_extents_t extents;
double px=0,py=0;
if(face == NULL) {
return MS_FAILURE;
}
cairo_set_font_face(r->cr,face->face);
cairo_set_font_size(r->cr,style->size*96/72.0);
cairo_save(r->cr);
cairo_translate(r->cr,MS_NINT(x),MS_NINT(y));
if(style->rotation != 0.0)
cairo_rotate(r->cr, -style->rotation);
has_kerning = FT_HAS_KERNING((face->ftface));
for(i=0;i<numglyphs;i++) {
utfptr+=msUTF8ToUniChar(utfptr, &unicode);
glyph.x=px;
glyph.y=py;
if(unicode=='\n') {
py += ceil(style->size*CAIROLINESPACE);
px = 0;
previdx=0;
continue;
}
glyph.index = FT_Get_Char_Index(face->ftface, unicode);
if( has_kerning && previdx ) {
FT_Vector delta;
FT_Get_Kerning( face->ftface, previdx, glyph.index, FT_KERNING_DEFAULT, &delta );
px += delta.x / 64.;
}
cairo_glyph_extents(r->cr,&glyph,1,&extents);
cairo_glyph_path(r->cr,&glyph,1);
px += extents.x_advance;
previdx=glyph.index;
}
if (style->outlinewidth > 0) {
cairo_save(r->cr);
msCairoSetSourceColor(r->cr, style->outlinecolor);
cairo_set_line_width(r->cr, style->outlinewidth + 1);
cairo_stroke_preserve(r->cr);
cairo_restore(r->cr);
}
if(style->color) {
msCairoSetSourceColor(r->cr, style->color);
cairo_fill(r->cr);
}
cairo_new_path(r->cr);
cairo_restore(r->cr);
return MS_SUCCESS;
}
