Qt-interest Archive, June 2007
graphicsview moving items on the scene
Message 1 in thread
Hello there.
I was writing visual editor in Qt 3.x but after read about Qt4.x
features (with graphics view) i decided to upgrade my code.
Unfortunately I'm quite newbie in Qt graphics system. Now I have my
application ported to Qt4 by after porting canvas view to graphics view
system I'm not able to move my graphics item over the scene. Under Qt3.x
I had code which take care about moving items with all children if there
any. I don't know, are children able to be moved after mousePressEvent
and MoseMoveEvent by default without any code?
Best regards
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Message 2 in thread
Przemysław Staniszewski wrote:
> Hello there.
>
> I was writing visual editor in Qt 3.x but after read about Qt4.x
> features (with graphics view) i decided to upgrade my code.
> Unfortunately I'm quite newbie in Qt graphics system. Now I have my
> application ported to Qt4 by after porting canvas view to graphics
> view system I'm not able to move my graphics item over the scene.
> Under Qt3.x I had code which take care about moving items with all
> children if there any. I don't know, are children able to be moved
> after mousePressEvent and MoseMoveEvent by default without any code?
Yes, see the QGraphicsItem flags:
http://doc.trolltech.com/4.3/qgraphicsitem.html#GraphicsItemFlag-enum
Specifically, look at the ItemIsMovable flag that allows users to drag
items without any code.
--Dave
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