HELP in drawing and adding captions to picture

Please forgive my English and my beginner skills. I am really new to QT, QPainter and graphics programming.

I develop the application snap2chat. And I badly need help with drawing and add captions to Images.

I tried QPainter paint brushes in the picture and save it. But it's really slow. I also added onTouch event on the image and passed the localX and localY and this is the position that I also used for the QPainter to paint on and does not have the right position for painting too.

and also the image GET bluish when I start painting.

QImage theimage = QImage(imagePath);

    QPainter painter(&theimage);
    painter.setRenderHint(QPainter::Antialiasing, true);
    painter.setPen(QPen(Qt::transparent, 3, Qt::SolidLine, Qt::RoundCap)); // stroke
    painter.setBrush(QBrush(Qt::green, Qt::SolidPattern)); // fill
    painter.drawEllipse(x, y, 10, 10);

    //theimage.save(imagePath, "JPG"); // I also tried uncommenting this

    const bb::ImageData imageData = bb::ImageData::fromPixels(theimage.bits(), bb::PixelFormat::RGBX, theimage.width(), theimage.height(), theimage.bytesPerLine());

    m_image = bb::cascades::Image(imageData); // this is the image I show in the ImageView

Also drawing with QPainter texts it blocks with the reason for the QFontDatabase. I saw a solution in another thread to add this line , but nothing helped.

Any suggestions please?

I didn't know he jumped a dialogue... the alternative is to write the screen to a bitmap image and then save it, works with 10.0 api and does not require a permission to screen capture or guest

I wrote an example that shows how to do this.

https://github.com/slashkyle/Cascades-samples/tree/master/CaptureThis

Tags: BlackBerry Developers

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HELP in drawing and adding captions to picture

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