C++ QSvgGenerator::setTitle方法代码示例

bool ExportHtml::convertSvm(QByteArray &input, QByteArray &output, QSize size)
{

    QBuffer *outBuf = new QBuffer(&output);
    QSvgGenerator generator;
    generator.setOutputDevice(outBuf);
    generator.setSize(QSize(200, 200));
    generator.setTitle("Svg image");
    generator.setDescription("This is an svg image that is converted from svm by Calligra");

    Libsvm::SvmParser  svmParser;

    QPainter painter;

    if (!painter.begin(&generator)) {
        kDebug(30503) << "Can not open the painter";
        return false;
    }

    painter.scale(50,50);
    Libsvm::SvmPainterBackend svmPainterBackend(&painter, size);
    svmParser.setBackend(&svmPainterBackend);
    if (!svmParser.parse(input)) {
        kDebug(30503) << "Can not Parse the Svm file";
        return false;
    }
    painter.end();

    return true;
}

bool ExportHtml::convertEmf(QByteArray &input, QByteArray &output, QSize size)
{
    QBuffer *outBuf = new QBuffer(&output);
    QSvgGenerator generator;
    generator.setOutputDevice(outBuf);
    generator.setSize(QSize(200, 200));
    generator.setTitle("Svg image");
    generator.setDescription("This is an svg image that is converted from EMF by Calligra");

    Libemf::Parser  emfParser;

    QPainter painter;

    if (!painter.begin(&generator)) {
        kDebug(30503) << "Can not open the painter";
        return false;
    }

    painter.scale(50,50);
    Libemf::OutputPainterStrategy  emfPaintOutput(painter, size, true );
    emfParser.setOutput( &emfPaintOutput );
    if (!emfParser.load(input)) {
        kDebug(30503) << "Can not Parse the EMF file";
        return false;
    }
    painter.end();

    return true;
}

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

    if (newPath.isEmpty())
        return;

    path = newPath;

//![configure SVG generator]
    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."));
//![configure SVG generator]
//![begin painting]
    QPainter painter;
    painter.begin(&generator);
//![begin painting]
    displayWidget->paint(painter);
//![end painting]
    painter.end();
//![end painting]
}

void ExportImageDialog::exportSvg(const QString &fileName)
{
    SkyMap *map = m_KStars->map();

    // export as SVG
    QSvgGenerator svgGenerator;
    svgGenerator.setFileName(fileName);
    svgGenerator.setTitle(i18n("KStars Exported Sky Image"));
    svgGenerator.setDescription(i18n("KStars Exported Sky Image"));
    svgGenerator.setSize(QSize(map->width(), map->height()));
    svgGenerator.setResolution(qMax(map->logicalDpiX(), map->logicalDpiY()));
    svgGenerator.setViewBox(QRect(0, 0, map->width(), map->height()));

    SkyQPainter painter(m_KStars, &svgGenerator);
    painter.begin();

    map->exportSkyImage(&painter);

    if(m_DialogUI->addLegendCheckBox->isChecked())
    {
        addLegend(&painter);
    }

    painter.end();
}

void struct3d::saveImage() {
//	view->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
//	QPixmap pixmap(view->size());
//	QPainter painter(&pixmap);
//	painter.setRenderHint(QPainter::Antialiasing);
//	view->render(&painter);
//	pixmap.save(QApplication::applicationDirPath() + "/image.png", "PNG",100);
	QString fileName = QFileDialog::getSaveFileName((QWidget *) this,
										 tr("Save as:"),
										 "structure.svg",
										 tr("SVG files (*.svg);;All Files (*)"));

	QRectF rect = scene->sceneRect();
	QSvgGenerator generator;
	generator.setFileName(fileName);
	generator.setSize(QSize(scene->sceneRect().width(), scene->sceneRect().height()));
	generator.setViewBox(scene->sceneRect());
	generator.setTitle(tr("Title"));
	generator.setDescription(tr("Description"));
	QPainter painter;
	painter.begin(&generator);
	scene->render(&painter, QRectF(), rect);
	painter.end();

}

bool ExportHtml::convertWmf(QByteArray &input, QByteArray &output, QSizeF size)
{
    QBuffer *outBuf = new QBuffer(&output);
    QSvgGenerator generator;
    generator.setOutputDevice(outBuf);
    generator.setSize(QSize(200, 200));
    generator.setTitle("Svg image");
    generator.setDescription("This is an svg image that is converted from WMF by Calligra");

    QPainter painter;

    if (!painter.begin(&generator)) {
        kDebug(30503) << "Can not open the painter";
        return false;
    }

    painter.scale(50,50);
    Libwmf::WmfPainterBackend  wmfPainter(&painter, size);
    if (!wmfPainter.load(input)) {
        kDebug(30503) << "Can not Parse the WMF file";
        return false;
    }

    // Actually paint the WMF.
    painter.save();
    wmfPainter.play();
    painter.restore();
    painter.end();

    return true;
}

void ExportWizard::saveSvg()
{
    if (m_ui->svgFilePath->text().isEmpty()) {
        QMessageBox::warning(this, tr("No file selected !"), tr("You need to choose a file path for saving."));
        return;
    }
    QString svgFilePath = m_ui->svgFilePath->text();

    // get the rendering size
    QRect svgRect(m_canvas->sceneRect().toRect());

    // create the SVG writer
    QSvgGenerator generator;
    generator.setFileName(svgFilePath);
    generator.setSize(svgRect.size());
    generator.setResolution(physicalDpiX());
    generator.setViewBox(svgRect);
    generator.setTitle(m_canvas->titleText());
    generator.setDescription(tr("Created with %1").arg(QCoreApplication::applicationName() + " " + QCoreApplication::applicationVersion()));

    // paint over the writer
    QPainter painter(&generator);
    painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform, true);
    m_canvas->renderVisible(&painter, svgRect, svgRect, Qt::IgnoreAspectRatio, !m_ui->svgAsIsBox->isChecked());
    painter.end();
}

void MultiLayer::exportSVG(const QString &fname) {
  QSvgGenerator generator;
  generator.setFileName(fname);
  generator.setSize(canvas->size());
  generator.setViewBox(QRect(QPoint(0, 0), generator.size()));
  generator.setResolution(96);  // FIXME hardcored
  generator.setTitle(this->name());
  exportPainter(generator);
}

	void setupGenerator(QSvgGenerator& generator, QString& templateName)
	{
		generator.setFileName(templateName + ".svg");
		generator.setSize(QSize(256, 256));
		generator.setViewBox(QRectF(0, 0, 256, 256));
		generator.setTitle("VPL " + templateName);
		generator.setDescription("This image was generated by an helper tool part of Aseba, get it at http://thymio.org");

	}

void OpenInfraPlatform::UserInterface::Alignment2DScene::exportToFile(QWidget* parent)
{
	QString filter;
	QString fn = QFileDialog::getSaveFileName(parent, tr("Save Vertical Alignment as..."), QString(), tr("PNG File (*.png);; JPG File (*.jpg);; PDF File (*.pdf);; SVG File (*.svg)"), &filter);
	if(fn.isEmpty())
		return;

	if(filter == "PNG File (*.png)" || filter == "JPG File (*.jpg)")
	{
		QImage image(sceneRect().size().toSize(), QImage::Format::Format_ARGB32);
		image.fill(Qt::darkGray);

		QPainter painter(&image);
		painter.setRenderHints(QPainter::Antialiasing);
		render(&painter);
		image.save(fn);
	}
	else
	{
		QPrinter printer;
		QSvgGenerator svgGen;

		QPaintDevice* device;
		if(filter == "PDF File (*.pdf)")
		{
			printer.setResolution(QPrinter::HighResolution);
			printer.setPageSize( QPrinter::A4 );
			printer.setOrientation( QPrinter::Landscape );
			printer.setOutputFormat( QPrinter::PdfFormat );
			printer.setOutputFileName(fn);

			device = &printer;
		}
		else if(filter == "SVG File (*.svg)")
		{
			QRectF rect = sceneRect(); 

			svgGen.setFileName(fn);
			svgGen.setSize(QSize(rect.width(),rect.height()));
			svgGen.setViewBox(QRect(0,0,rect.width(),rect.height()));
			svgGen.setTitle("Vertical Alignment");			
			
			device = &svgGen;
		}
		else
		{
			return;
		}

		QPainter painter(device);

		configureColors(A2D_DrawState::A2D_Print);
		render(&painter);
		configureColors(A2D_DrawState::A2D_Draw);
	}
}

void QGVPage::saveSvg(QString filename)
{
    // TODO: We only have m_vpPage because constructor gets passed a view provider...
    //NOTE: this makes wrong size pages in low-Rez
    TechDraw::DrawPage *page( m_vpPage->getDrawPage() );

    const QString docName( QString::fromUtf8(page->getDocument()->getName()) );
    const QString pageName( QString::fromUtf8(page->getNameInDocument()) );
    QString svgDescription = tr("Drawing page: ") +
                             pageName +
                             tr(" exported from FreeCAD document: ") +
                             docName;


    QSvgGenerator svgGen;
    svgGen.setFileName(filename);
    svgGen.setSize(QSize((int) Rez::guiX(page->getPageWidth()), (int) Rez::guiX(page->getPageHeight())));   //expects pixels, gets mm
    //"By default this property is set to QSize(-1, -1), which indicates that the generator should not output 
    // the width and height attributes of the <svg> element."  >> but Inkscape won't read it without size info??
    svgGen.setViewBox(QRect(0, 0, Rez::guiX(page->getPageWidth()), Rez::guiX(page->getPageHeight())));
    
    svgGen.setResolution(Rez::guiX(25.4));    // docs say this is DPI. 1dot/mm so 25.4dpi

    svgGen.setTitle(QObject::tr("FreeCAD SVG Export"));
    svgGen.setDescription(svgDescription);

    Gui::Selection().clearSelection();

    toggleMarkers(false);             //fiddle cache, vertices, frames, etc
    toggleHatch(false);
    scene()->update();
    viewport()->repaint();

    double width  =  Rez::guiX(page->getPageWidth());
    double height =  Rez::guiX(page->getPageHeight());
    QRectF sourceRect(0.0,-height,width,height);
    QRectF targetRect;

    Gui::Selection().clearSelection();
    QPainter p;

    p.begin(&svgGen);
    scene()->render(&p, targetRect,sourceRect);
    p.end();

    toggleMarkers(true);
    toggleHatch(true);
    scene()->update();
    viewport()->repaint();
}

// Save the file in the editor to a file at fileName
void svgSave(const QString &fileName, NoteEditor *editor)
{
    QSvgGenerator generator;
    generator.setFileName(fileName);
    generator.setSize(editor->size());
    generator.setViewBox(QRect(0, 0, editor->width(), editor->height()));
    generator.setTitle("Ink");
    generator.setDescription("ThreeRing ink");

    QPainter painter;
    painter.begin(&generator);
    editor->paint(painter);
    painter.end();
}

void DrawSVG::Write(QString filename)
{
	if(!canvas) return;
	QSvgGenerator generator;
	generator.setFileName(filename);
	generator.setSize(QSize(canvas->width(), canvas->height()));
	generator.setTitle("MLDemos screenshot");
	generator.setDescription("Generated with MLDemos");
	QPainter painter;
	painter.begin(&generator);
	// we need to paint the different layers:
	// confidence map
	// samples + trajectories + reward
	canvas->PaintStandard(painter, true);
    if(canvas->bDisplayLearned)
	{
		// learned model
        painter.setBackgroundMode(Qt::TransparentMode);
        if(classifier) DrawClassificationSamples(canvas, painter, classifier, classifierMulti);
		if(regressor) drawRegr->DrawModel(canvas, painter, regressor);
		if(dynamical) drawDyn->DrawModel(canvas, painter, dynamical);
        if(clusterer) drawClust->DrawModel(canvas, painter, clusterer);
        if(projector) drawProj->DrawModel(canvas, painter, projector);
        if(dynamical)
		{
			int cnt = 10000; // not too many or it will make unreadable files
			int steps = 8;
			VectorsFast(cnt, steps, painter);
		}
		if(maximizer)
		{
			Maximization(painter);
		}
	}

	if(canvas->bDisplayInfo)
	{
		// model info
        painter.setBackgroundMode(Qt::TransparentMode);
        if(classifier) drawClass->DrawInfo(canvas, painter, classifier);
		if(regressor) drawRegr->DrawInfo(canvas, painter, regressor);
		if(dynamical) drawDyn->DrawInfo(canvas, painter, dynamical);
		if(clusterer) drawClust->DrawInfo(canvas, painter, clusterer);
        if(projector) drawProj->DrawInfo(canvas, painter, projector);
    }
	painter.end();
}

void Figure2D::exportGraphics(QString fileName)
{
    // Open file save dialog if no filename given
    if (fileName.isEmpty())
        fileName = QFileDialog::getSaveFileName(this, tr("Export VIBes graphics"),
                QString(), tr("Portable Network Graphics (*.png);;"
                              "Joint Photographic Experts Group (*.jpg *.jpeg);;"
                              "Windows Bitmap (*.bmp);;"
                              "Scalable Vector Graphics (*.svg)"));

    // Abort if no file selected
    if (fileName.isEmpty())
        return;

    // Append .png if no extension was specified
    if (fileName.indexOf('.',1) < 0) // Search '.' from the second character (*nix hidden files start with a dot)
        fileName.append(".png");

    // Save as raster
    if (fileName.endsWith(".jpg", Qt::CaseInsensitive)
            || fileName.endsWith(".jpeg", Qt::CaseInsensitive)
            || fileName.endsWith(".png", Qt::CaseInsensitive)
            || fileName.endsWith(".bmp", Qt::CaseInsensitive))
    {
        QImage image(this->size()*2, QImage::Format_ARGB32);
        image.fill(QColor(255,255,255,0));
        QPainter painter;
        painter.begin(&image);
        this->render(&painter);
        painter.end();
        image.save(fileName);
    }
    // Save as vector (SVG)
    else if (fileName.endsWith(".svg", Qt::CaseInsensitive))
    {
        QSvgGenerator generator;
        generator.setFileName(fileName);
        generator.setSize(this->size());
        generator.setViewBox(QRect(QPoint(0,0),this->size()));
        generator.setTitle(tr("VIBes figure"));
        generator.setDescription(tr("Graphics generated with VIBes on %1.").arg(QDateTime::currentDateTime().toString()));
        QPainter painter;
        painter.begin(&generator);
        this->render(&painter);
        painter.end();
    }
}

  void Spectrum1DWidget::saveAsImage()
  {
    QString file_name = QFileDialog::getSaveFileName(this, "Save File", "", "Raster images *.bmp *.png *.jpg *.gif (*.bmp *.png *.jpg *.gif);;Vector images *.svg (*.svg)");
    bool x_visible = x_scrollbar_->isVisible();
    bool y_visible = y_scrollbar_->isVisible();
    x_scrollbar_->hide();
    y_scrollbar_->hide();

    if (file_name.contains(".svg", Qt::CaseInsensitive)) // svg vector format
    {
      QSvgGenerator generator;
      generator.setFileName(file_name);
      generator.setSize(QSize(this->width(), this->height()));
      generator.setViewBox(QRect(0, 0, this->width() - 1, this->height() - 1));
      generator.setTitle(file_name);
      generator.setDescription("TOPPView generated SVG");
      QPainter painter;
      painter.begin(&generator);

      painter.save();
      painter.translate(QPoint(y_axis_->pos()));
      y_axis_->paint(&painter, new QPaintEvent(y_axis_->contentsRect()));
      painter.restore();

      painter.save();
      painter.translate(QPoint(canvas_->pos()));
      dynamic_cast<Spectrum1DCanvas*>(canvas_)->paint(&painter, new QPaintEvent(canvas_->contentsRect()));
      painter.restore();

      painter.save();
      painter.translate(QPoint(x_axis_->pos()));
      x_axis_->paint(&painter, new QPaintEvent(x_axis_->contentsRect()));
      painter.restore();

      painter.end();
      x_scrollbar_->setVisible(x_visible);
      y_scrollbar_->setVisible(y_visible);
    }
    else // raster graphics formats
    {
      QPixmap pixmap = QPixmap::grabWidget(this);
      x_scrollbar_->setVisible(x_visible);
      y_scrollbar_->setVisible(y_visible);
      pixmap.save(file_name);
    }
  }