Problem Occurred when open SVG file

Question

Dec. 6, 2017, 3:37 a.m.

Problem Occurred when open SVG file

In my project which can create rectangle and oval shape like this image .I use this code to open ellipses and rectangles.Which open rectangles and oval/ellipse properly. But when I use this types which not open properly.here with I attach sample SVG file.can you give me a solution to solve this problem.

This is part of SVG file.

<g fill="#ffffff" fill-opacity="1" stroke="#00ff00" stroke-opacity="1" stroke-width="1" stroke-linecap="square" stroke-linejoin="bevel" transform="matrix(1,0,0,1,284,160)"
font-family="MS Shell Dlg 2" font-size="7.8" font-weight="400" font-style="normal" 
>
<rect x="-20" y="-10" width="100" height="100"/>
<rect x="-15" y="-5" width="90" height="90"/>
</g>

This is my code (from this article)

        QDomElement rectangle = gNode.firstChildElement("rect");
        if (!rectangle.isNull()){
            VERectangle *rect = new VERectangle();
            auto gElement = gNode.toElement();
            rect->setRect(rectangle.attribute("x").toInt(),
                          rectangle.attribute("y").toInt(),
                          rectangle.attribute("width").toInt(),
                          rectangle.attribute("height").toInt());

            QString fill = gElement.attribute("fill", "#ffffff");
            if(fill.contains("url(#gradient")){
                fill.replace(QString("url(#gradient"), QString(""));
                fill.replace(QString(")"), QString(""));
                QLinearGradient g = gradientList.at(fill.toInt() - 1);
                auto tmpRect = rect->rect();
                g.setStart(tmpRect.left() + tmpRect.width()/2,tmpRect.top());
                g.setFinalStop(tmpRect.left() + tmpRect.width()/2,tmpRect.bottom());
                rect->setBrush(QBrush(g));
            } else {
                QColor fillColor(gElement.attribute("fill", "#ffffff"));
                fillColor.setAlphaF(gElement.attribute("fill-opacity","0").toFloat());
                rect->setBrush(QBrush(fillColor));
            }

            QColor strokeColor(gElement.attribute("stroke", "#000000"));
            strokeColor.setAlphaF(gElement.attribute("stroke-opacity").toFloat());

            QString transString = gElement.attribute("transform");
            transString.replace(QString("matrix("),QString(""));
            transString.replace(QString(")"),QString(""));
            QStringList transList = transString.split(",");

            QTransform trans(rect->transform());

            qreal m11 = trans.m11();    // Horizontal scaling
            qreal m12 = trans.m12();    // Vertical shearing
            qreal m13 = trans.m13();    // Horizontal Projection
            qreal m21 = trans.m21();    // Horizontal shearing
            qreal m22 = trans.m22();    // vertical scaling
            qreal m23 = trans.m23();    // Vertical Projection
            qreal m31 = trans.m31();    // Horizontal Position (DX)
            qreal m32 = trans.m32();    // Vertical Position (DY)
            qreal m33 = trans.m33();    // Addtional Projection Factor

            m11 = transList.at(0).toFloat();
            m12 = transList.at(1).toFloat();
            m21 = transList.at(2).toFloat();
            m22 = transList.at(3).toFloat();
            m31 = transList.at(4).toFloat();
            m32 = transList.at(5).toFloat();

            trans.setMatrix(m11,m12,m13,m21,m22,m23,m31,m32,m33);
            rect->setTransform(trans);
            rect->setPen(QPen(strokeColor,gElement.attribute("stroke-width", "0").toInt()));

            graphicsList.append(rect);
            continue;
        }

 // for_ovel

        QDomElement ovel = gNode.firstChildElement("ellipse");
        if (!ovel.isNull()){
            ovalshape *ellipseItem = new ovalshape();
            auto oElement = gNode.toElement();
            ellipseItem->setRect(ovel.attribute("cx").toFloat() - ovel.attribute("rx").toFloat(),
                                 ovel.attribute("cy").toFloat() - ovel.attribute("rx").toFloat(),
                                 ovel.attribute("rx").toFloat() * 2,
                                 ovel.attribute("ry").toFloat() * 2);

            QString fill = oElement.attribute("fill", "#ffffff");
            if(fill.contains("url(#gradient")){
                fill.replace(QString("url(#gradient"), QString(""));
                fill.replace(QString(")"), QString(""));
                QLinearGradient g = gradientList.at(fill.toInt() - 1);
                auto tmpRect = ellipseItem->rect();
                g.setStart(tmpRect.left() + tmpRect.width()/2,tmpRect.top());
                g.setFinalStop(tmpRect.left() + tmpRect.width()/2,tmpRect.bottom());
                ellipseItem->setBrush(QBrush(g));
            } else {
                QColor fillColor(oElement.attribute("fill", "#ffffff"));
                fillColor.setAlphaF(oElement.attribute("fill-opacity","0").toFloat());
                ellipseItem->setBrush(QBrush(fillColor));
            }

            QColor strokeColor(oElement.attribute("stroke", "#000000"));
            strokeColor.setAlphaF(oElement.attribute("stroke-opacity").toFloat());

            QString transString = oElement.attribute("transform");
            transString.replace(QString("matrix("),QString(""));
            transString.replace(QString(")"),QString(""));
            QStringList transList = transString.split(",");

            QTransform trans(ellipseItem->transform());

            qreal m11 = trans.m11();    // Horizontal scaling
            qreal m12 = trans.m12();    // Vertical shearing
            qreal m13 = trans.m13();    // Horizontal Projection
            qreal m21 = trans.m21();    // Horizontal shearing
            qreal m22 = trans.m22();    // vertical scaling
            qreal m23 = trans.m23();    // Vertical Projection
            qreal m31 = trans.m31();    // Horizontal Position (DX)
            qreal m32 = trans.m32();    // Vertical Position (DY)
            qreal m33 = trans.m33();    // Addtional Projection Factor

            m11 = transList.at(0).toFloat();
            m12 = transList.at(1).toFloat();
            m21 = transList.at(2).toFloat();
            m22 = transList.at(3).toFloat();
            m31 = transList.at(4).toFloat();
            m32 = transList.at(5).toFloat();

            trans.setMatrix(m11,m12,m13,m21,m22,m23,m31,m32,m33);
            ellipseItem->setTransform(trans);
            ellipseItem->setPen(QPen(strokeColor,oElement.attribute("stroke-width", "0").toInt()));

            graphicsList.append(ellipseItem);
            continue;
        }

sample.svg

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Problem Occurred when open SVG file

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