I want to paint a lot of shape via QPainter so I need Scroll to show all of them.
I make a QScrollArea and must to add a widget to it but I can't handle QPainter where to paint shapes.
this function draw a line that is too long.
void MainWindow::paintEvent(QPaintEvent *)
this is the Constructor of mianwindow that I want to handle Scroll:
MainWindow::MainWindow(QWidget *parent) :
QScrollArea *area = new QScrollArea();
so what i should to do in (......) ??!!
[edit, code tags added, koahnig]
Please check out the forum for "writing tags around your code sections.":http://qt-project.org/wiki/ForumHelp#e3f82045ad0f480d3fb9e0ac2d58fb01
Did you check out already the "image viewer example?":http://qt-project.org/doc/qt-5.0/qtwidgets/widgets-imageviewer.html It uses a painter too.
i checked it but wasn't useful!
[quote author="Hesam4g" date="1379171433"]i checked it but wasn't useful![/quote]
why wasn't it useful?
Beside you can use QGraphicsView if you like.
If you want to stick to the QPainter approach you shouldn't override MainWindow::paintEvent() and do the painting there.Instead you should cretae a simple QWidget subclass, do the painting there and add this widget to the QScrollArea.