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# window.cpp Example File
painting/svggenerator/window.cpp

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     #include <QColorDialog>
     #include <QFileDialog>
     #include <QPainter>
     #include <QSvgGenerator>
     #include "window.h"
     #include "displaywidget.h"

     Window::Window(QWidget *parent)
         : QWidget(parent)
     {
         setupUi(this);
     }

     void Window::updateBackground(int background)
     {
         displayWidget->setBackground(DisplayWidget::Background(background));
     }

     void Window::updateColor()
     {
         QColor color = QColorDialog::getColor(displayWidget->color());
         if (color.isValid())
             displayWidget->setColor(color);
     }

     void Window::updateShape(int shape)
     {
         displayWidget->setShape(DisplayWidget::Shape(shape));
     }

     void Window::saveSvg()
     {
         QString newPath = QFileDialog::getSaveFileName(this, tr("Save SVG"),
             path, tr("SVG files (*.svg)"));

         if (newPath.isEmpty())
             return;

         path = newPath;

         QSvgGenerator generator;
         generator.setFileName(path);
         generator.setSize(QSize(200, 200));
         generator.setViewBox(QRect(0, 0, 200, 200));
         generator.setTitle(tr("SVG Generator Example Drawing"));
         generator.setDescription(tr("An SVG drawing created by the SVG Generator "
                                     "Example provided with Qt."));
         QPainter painter;
         painter.begin(&generator);
         displayWidget->paint(painter);
         painter.end();
     }