Hi all,
in case somebody is interested:
I've managed to implement "sloppy clicks", i.e. clicks during which the
mouse pointer moves a little bit (happens a lot when using a wacom pen).
This was a problem because the buttons need to be "dragable", and the
moment the mouseMoveEvent started, the mouseReleaseEvent never got
called. So even a 1 pixel shift which feels like a click to the user
wouldn't result in the expected behaviour.
http://pastebin.com/XK3QguAH
I'm not sure if this is the best solution though, as I basically had to
enable and implement drop events for the button itself, then compare the
position where the button was dropped vs. it's original position. If the
distance is within a given threshold (in my case 5 pixels) then the same
function is called as is used by the mouseReleaseEvent().
Using the above and the mouseReleaseEvent rather than the
mousePressEvent enables me to make the buttons "dragable" with the same
mouse button as they are clicked with, and be able to differentiate
between dragging event and a "sloppy" click.
I don't feel this is the right way to go about it though, so any
suggestions on how to do this more elegantly would be appreciated.
Cheers,
frank
On 4/14/12 3:40 PM, Frank Rueter | OHUfx wrote:
Sweet, the setDown() method was what I needed, thanks!
It's a little disapointing that the right and middle mouse click
events don't seem to work on a mac though.
I guess in that case I will have to make sure that the mousePressEvent
isn't called when the button is dragged. Is there an elegant way to
set some sort of threshold or check if the button was moved a certain
distance between the mouseDown and mouseUp events, and if so, don't
trigger the mousePressEvent? Will have a play, I might have just
answered my own question :-D
Cheers,
frank
On 14/04/12 2:01 AM, Aaron Richiger wrote:
Hello Frank and Sebastian!
You are both right... Because you are discussing about different
code, I guess. The tutorial indicated by Frank does not work on Mac
for me (maybe, I am just to stupid to figure out how to trigger a
RightMouseButtonEvent on Mac, but anyways), so I guess, Sebastian
tried the code of the tutorial on Windows, where right clicks
perfectly work, but they do not leave down the original button.
Then I guess, Frank changed the tutorial code slightly to drag and
drop with left clicks on MacOS. And there it is, the original button
stays down after dragging and I think, this behaviour is platform
independent, so Sebastian would get the same problem I guess...
But it's not a bug of PySide or Qt, but just the normal behaviour of
buttons, if you click them with the left mousebutton. They are
looking "down", to repair this, simply call self.setDown(False) in
the mouseMoveEvent() method. You get a changed version of the
tutorial (not only dragNdrop, but also creating a new widget as Frank
wanted) here:
http://pastebin.com/GMbcCWYM
Play around dragging the buttons with the left mouse button and
uncomment the self.setDown() call to see Franks issue platform
independent.
Lot's of "guesses" and "maybes", but could be the solution...
Aaron
I guess this is a bug in PySide, which may depend on OS. I do not
have this behaviour on win xp with newest Pyside and python 26
On 04/13/2012 10:54 AM, Frank Rueter | OHUfx wrote:
Hi everyone,
me again :)
I just implemented the tutorial on this page
<http://zetcode.com/gui/pysidetutorial/dragdrop/> into my code as I
needed to be able to copy QPushButtons from one widget to another
via Drag&Drop. It all works great, accept for the fact that the
original button that I drag becomes checked and stays checked after
I drop it into the other widget.
The example on the above page actually has the same problem accept
it doesn't matter in that example.
The QPushButton is not set to be checkable and I've tried using
setChecked( False ) on the button both in the dragEnterEvent as
well as the dropEvent, but to no avail.
Any ideas how to make the button uncheck itself after it was dropped?
Cheers,
frank
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