void *msCreateTileEllipseCairo(double width, double height, double angle,
colorObj *c, colorObj *bc, colorObj *oc, double ow) {
double s = (MS_MAX(width,height)+ow)*1.5;
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
s,s);
cairo_t *cr = cairo_create(surface);
//cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
//cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
if (bc && MS_VALID_COLOR(*bc)) {
msCairoSetSourceColor(cr, bc);
cairo_paint(cr);
}
cairo_save(cr);
cairo_translate(cr,s/2,s/2);
cairo_rotate(cr, -angle);
cairo_scale(cr, width/2,height/2);
cairo_arc(cr, 0, 0, 1, 0, 2 * MS_PI);
cairo_restore(cr);
if (c != NULL && MS_VALID_COLOR(*c)) {
msCairoSetSourceColor(cr, c);
cairo_fill_preserve(cr);
}
if (oc != NULL && MS_VALID_COLOR(*oc)) {
cairo_set_line_width(cr, ow);
msCairoSetSourceColor(cr, oc);
cairo_stroke_preserve(cr);
}
cairo_new_path(cr);
cairo_destroy(cr);
return surface;
}
int renderEllipseSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
symbolStyleObj *style)
{
cairo_renderer *r = CAIRO_RENDERER(img);
cairo_save(r->cr);
cairo_set_line_cap(r->cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_join(r->cr, CAIRO_LINE_JOIN_MITER);
cairo_translate(r->cr,x,y);
cairo_rotate(r->cr,-style->rotation);
cairo_scale(r->cr,symbol->sizex*style->scale/2,symbol->sizey*style->scale/2);
cairo_arc (r->cr, 0,0,1, 0, 2 * MS_PI);
cairo_restore(r->cr);
if(style->color) {
msCairoSetSourceColor(r->cr, style->color);
cairo_fill_preserve(r->cr);
}
if(style->outlinewidth > 0) {
cairo_set_line_width (r->cr, style->outlinewidth);
msCairoSetSourceColor(r->cr, style->outlinecolor);
cairo_stroke_preserve(r->cr);
}
cairo_new_path(r->cr);
return MS_SUCCESS;
}
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 renderLineCairo(imageObj *img, shapeObj *p, strokeStyleObj *stroke) {
int i,j;
cairo_renderer *r = CAIRO_RENDERER(img);
assert(stroke->color);
cairo_new_path(r->cr);
msCairoSetSourceColor(r->cr,stroke->color);
for(i=0;i<p->numlines;i++) {
lineObj *l = &(p->line[i]);
cairo_move_to(r->cr,l->point[0].x,l->point[0].y);
for(j=1;j<l->numpoints;j++) {
cairo_line_to(r->cr,l->point[j].x,l->point[j].y);
}
}
if(stroke->patternlength>0) {
cairo_set_dash(r->cr,stroke->pattern,stroke->patternlength,0);
}
switch(stroke->linecap) {
case MS_CJC_BUTT:
cairo_set_line_cap(r->cr,CAIRO_LINE_CAP_BUTT);
break;
case MS_CJC_SQUARE:
cairo_set_line_cap(r->cr,CAIRO_LINE_CAP_SQUARE);
break;
case MS_CJC_ROUND:
case MS_CJC_NONE:
default:
cairo_set_line_cap(r->cr,CAIRO_LINE_CAP_ROUND);
}
cairo_set_line_width (r->cr, stroke->width);
cairo_stroke (r->cr);
if(stroke->patternlength>0) {
cairo_set_dash(r->cr,stroke->pattern,0,0);
}
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 renderVectorSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
symbolStyleObj *style)
{
cairo_renderer *r = CAIRO_RENDERER(img);
double ox=symbol->sizex*0.5,oy=symbol->sizey*0.5;
int is_new = 1,i;
cairo_new_path(r->cr);
cairo_save(r->cr);
cairo_translate(r->cr,x,y);
cairo_scale(r->cr,style->scale,style->scale);
cairo_rotate(r->cr,-style->rotation);
cairo_translate(r->cr,-ox,-oy);
for (i = 0; i < symbol->numpoints; i++) {
if ((symbol->points[i].x == -99) && (symbol->points[i].y == -99)) { /* (PENUP) */
is_new = 1;
} else {
if (is_new) {
cairo_move_to(r->cr,symbol->points[i].x,symbol->points[i].y);
is_new = 0;
} else {
cairo_line_to(r->cr,symbol->points[i].x,symbol->points[i].y);
}
}
}
cairo_restore(r->cr);
if(style->color) {
msCairoSetSourceColor(r->cr,style->color);
cairo_fill_preserve(r->cr);
}
if(style->outlinewidth>0) {
msCairoSetSourceColor(r->cr,style->outlinecolor);
cairo_set_line_width (r->cr, style->outlinewidth);
cairo_stroke_preserve(r->cr);
}
cairo_new_path(r->cr);
return MS_SUCCESS;
}
int renderPolygonCairo(imageObj *img, shapeObj *p, colorObj *c) {
cairo_renderer *r = CAIRO_RENDERER(img);
int i,j;
cairo_new_path(r->cr);
cairo_set_fill_rule(r->cr,CAIRO_FILL_RULE_EVEN_ODD);
msCairoSetSourceColor(r->cr,c);
for(i=0;i<p->numlines;i++) {
lineObj *l = &(p->line[i]);
cairo_move_to(r->cr,l->point[0].x,l->point[0].y);
for(j=1;j<l->numpoints;j++) {
cairo_line_to(r->cr,l->point[j].x,l->point[j].y);
}
cairo_close_path(r->cr);
}
cairo_fill(r->cr);
return MS_SUCCESS;
}
imageObj* createImageCairo(int width, int height, outputFormatObj *format,colorObj* bg)
{
imageObj *image = NULL;
cairo_renderer *r=NULL;
if (format->imagemode != MS_IMAGEMODE_RGB && format->imagemode!= MS_IMAGEMODE_RGBA) {
msSetError(MS_MISCERR,
"Cairo driver only supports RGB or RGBA pixel models.","msImageCreateCairo()");
return image;
}
if (width > 0 && height > 0) {
image = (imageObj *) calloc(1, sizeof(imageObj));
r = (cairo_renderer*)calloc(1,sizeof(cairo_renderer));
if(!strcasecmp(format->driver,"cairo/pdf")) {
r->outputStream = (bufferObj*)malloc(sizeof(bufferObj));
msBufferInit(r->outputStream);
r->surface = cairo_pdf_surface_create_for_stream(
_stream_write_fn,
r->outputStream,
width,height);
} else if(!strcasecmp(format->driver,"cairo/svg")) {
r->outputStream = (bufferObj*)malloc(sizeof(bufferObj));
msBufferInit(r->outputStream);
r->surface = cairo_svg_surface_create_for_stream(
_stream_write_fn,
r->outputStream,
width,height);
} else if(!strcasecmp(format->driver,"cairo/winGDI") && format->device) {
#if CAIRO_HAS_WIN32_SURFACE
r->outputStream = NULL;
r->surface = cairo_win32_surface_create(format->device);
#else
msSetError(MS_RENDERERERR, "Cannot create cairo image. Cairo was not compiled with support for the win32 backend.",
"msImageCreateCairo()");
#endif
} else if(!strcasecmp(format->driver,"cairo/winGDIPrint") && format->device) {
#if CAIRO_HAS_WIN32_SURFACE
r->outputStream = NULL;
r->surface = cairo_win32_printing_surface_create(format->device);
#else
msSetError(MS_RENDERERERR, "Cannot create cairo image. Cairo was not compiled with support for the win32 backend.",
"msImageCreateCairo()");
#endif
} else {
r->outputStream = NULL;
r->surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
}
r->cr = cairo_create(r->surface);
if(format->transparent || !bg || !MS_VALID_COLOR(*bg)) {
r->use_alpha = 1;
cairo_set_source_rgba (r->cr, 0,0,0,0);
} else {
r->use_alpha = 0;
msCairoSetSourceColor(r->cr,bg);
}
cairo_save (r->cr);
cairo_set_operator (r->cr, CAIRO_OPERATOR_SOURCE);
cairo_paint (r->cr);
cairo_restore (r->cr);
cairo_set_line_cap (r->cr,CAIRO_LINE_CAP_ROUND);
cairo_set_line_join(r->cr,CAIRO_LINE_JOIN_ROUND);
image->img.plugin = (void*)r;
} else {
msSetError(MS_RENDERERERR, "Cannot create cairo image of size %dx%d.",
"msImageCreateCairo()", width, height);
}
return image;
}
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;
}
