window.cpp 范例文件

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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();
}