Qt SVG Editor: How to resize svg image and save it back in SVG form as a resized image.!

[prg1234]

I can load svg file and render it on QGraphicsView..but how to resize image and store it back in svg..!

I tried following code for saving but it saves the contents as pixmap..!

@QSvgGenerator generator;
generator.setFileName(path);
generator.setSize(QSize(200, 200));

QPainter painter(&generator);
scene->render(&painter, QRectF(0, 0, 200, 200));

@

But its not working.

[prg1234]

Well, Im not talking about zooming image here..Its Resizing to be precise..!

[Jake007]

Hi!

You can not scale or rescale svg image in pixels. Svg image is a set of vectors, which calculates on load for given resolution. So in any resolution that you will save, it will be completely the same.

Hope it makes any sense ;)

Regrads,
Jake

[prg1234]

ok..i got that..!

But even if i save the contents of graphicsvies..they got stored as pixmap instead svg..!

with the above code..!

I want to save the contents as svg only...!

[Jake007]

Can you edit svg image in your program?
If you can not, there is no need to re-save it.

Otherwise, if you took a look at Svg Generator Example, this is how you save it:
@ 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();

}@

[prg1234]

I cant exactly say I can edit my image..but i was trying to display multiple images on the same view..and i succeeded too..!

But I couldn't save this scene as a one svg image .
Its getting saved in svg format with my above code but the contents of it are displayed as pixmap only.

[prg1234]

@void MainWindow::on_actionSave_As_triggered()
{

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));

QPainter painter(&generator);
scene->render(&painter, QRectF(0, 0, 200, 200));

}@

I used this code..!

And your previous code contains seperate class to be constructed and function paint..!

Well i dont want that..

M wondering what to write betn..

@ QPainter painter;
painter.begin(&generator);
,,,,,...??
painter.end();@

for fun i treied scene.render(painter);

and it worked but again contents were pixmap..:(

[Jake007]

Have you ever took a look at SVG file how it's written?
It's an xml file.
So one solution would be: read image by image as xml and save required data into a string.
When you are finished gathering data, you only write generated string into an xml file.

And a quick tutorial on svg "here":http://www.w3schools.com/svg/default.asp

Regards,
Jake