#include "SVG.h"
#include <QFile>
#include <QPainter>
#include <QTextStream>
#include <utility>
#include <qdom.h>
#include "../base/Global.h"
void SVGImage_Render::render(QPainter* painter, const QRectF& rect) {
    render(painter, rect, _color);
}

void SVGImage_Render::render(QPainter *painter) {
    QSvgRenderer renderer(change_color(_color));
    renderer.render(painter);
}

void SVGImage_Render::render(QPainter* painter, const QRectF& rect, const QColor& color) {
    QSvgRenderer renderer(change_color(color));
    renderer.render(painter, rect);
}

QImage SVGImage_Render::to_image(QSize size, const QColor& color) {
    QImage image(size, QImage::Format_ARGB32);
    image.fill(Qt::transparent);
    QPainter painter(&image);
    QSvgRenderer renderer(change_color(color));
    renderer.render(&painter, QRectF(QPointF(0, 0), QSizeF(size)));
    return image;
}

QPixmap SVGImage_Render::to_pixmap(QSize size, const QColor& color) {
    return QPixmap::fromImage(to_image(size, color));
}

QByteArray SVGImage_Render::change_color(const QColor& color) {
    QDomElement root = doc.documentElement();
    auto text = color.name(QColor::HexRgb).toUpper();
    root.setAttribute("fill", text);
    if (color.alpha() != 255) {
        root.setAttribute("fill-opacity", QString::number(color.alphaF()));
    }
    QByteArray ret;
    QTextStream outStream(&ret);
    doc.save(outStream, 4);
    return ret;
}

SVGImage_Render& SVGImage_Render::create() {
    QFile file(_path);
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
    {
        qWarning() << VAR_QSTR_1(_path) + "无法打开! " + QLOG_POS;
        return *this;
    }
    QTextStream in(&file);
    QString svgContent = in.readAll();
    file.close();
    doc.setContent(svgContent);
    return *this;
}