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#include "svgloader.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <cairo.h>
#include <svg.h>
#include <svg-cairo.h>
SVGLoader::SVGLoader()
{
}
SVGLoader::~SVGLoader()
{
}
QImage SVGLoader::load(QString file, unsigned int width, unsigned int height, float wscale, float hscale) {
svg_cairo_t *scr;
int bpp;
int btpp;
unsigned int rwidth;
unsigned int rheight;
svg_cairo_create(&scr);
svg_cairo_parse(scr, file.toStdString().c_str());
if (wscale <= 0) wscale=1;
if (hscale <= 0) hscale=1;
svg_cairo_get_size (scr, &rwidth, &rheight);
if (width > 0) {
if (rwidth>width) {
wscale=(float)width/(float)rwidth;
} else {
wscale=(float)rwidth/(float)width;
}
} else {
width=(int)(rwidth*wscale);
}
if (height > 0) {
if (rheight>height) {
hscale=(float)height/(float)rheight;
} else {
hscale=(float)rheight/(float)height;
}
} else {
height=(int)(rheight*hscale);
}
bpp=32;
btpp=4;
int stride=width * btpp;
unsigned char *image=(unsigned char*)calloc(stride*height, 1);
cairo_surface_t *cairo_surface;
cairo_surface = cairo_image_surface_create_for_data(image, CAIRO_FORMAT_ARGB32,
width, height, stride);
cairo_t *cr = cairo_create(cairo_surface);
cairo_scale(cr, wscale, hscale);
svg_cairo_render(scr, cr);
cairo_surface_destroy(cairo_surface);
cairo_destroy(cr);
svg_cairo_destroy(scr);
QImage qimage(image, width, height, QImage::Format_ARGB32);
return qimage;
}
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