I have been having problems getting drag & drop to work, where I drag into a grid on a Mac. I have constructed a <60 line demo program that works on Windows and Linux, but where dragging to the grid on my Mac (10.6.4, EPD 6.2-2) fails. Is this operator error or is there a wx bug here?
As a second question, since I am still struggling to learn proper use of sizers, can anyone explain to me why the commented out BoxSizer Add fails to cause the TextCtrl to expand to its proper size, if it is used in place of the previous Add?
> I have been having problems getting drag& drop to work, where I drag > into a grid on a Mac. I have constructed a<60 line demo program that > works on Windows and Linux, but where dragging to the grid on my Mac > (10.6.4, EPD 6.2-2) fails. Is this operator error or is there a wx > bug here?
The Grid widget is composed of several sub widgets (for the grid area and the col/row labels), which occupy all the visible area of the grid. If you want to be able to drop into the grid you should set the drop target on one of the visible windows, not its parent.
grid.GetGridWindow().SetDropTarget(drptgt)
> As a second question, since I am still struggling to learn proper use > of sizers, can anyone explain to me why the commented out BoxSizer > Add fails to cause the TextCtrl to expand to its proper size, if it > is used in place of the previous Add?
Depends on what you mean by "proper size." I'm guessing that you think it means to be large enough to show all the text. But since the wx.TextCtrl can have variable size needs that change at runtime as the user types then it just uses a fixed width for its best size and that is what the sizer will use for layout unless you tell it different. You can override the best size by setting the min size.
> If you want to be able to drop into the grid you should set the drop
> target on one of the visible windows, not its parent.
> grid.GetGridWindow().SetDropTarget(drptgt)
So I take it that the GridDragAndDrop.py example:
class SimpleGrid(gridlib.Grid):
def __init__(self, parent, log):
gridlib.Grid.__init__(self, parent, -1)
...
# set the drag and drop target
dropTarget = GridFileDropTarget(self)
self.SetDropTarget(dropTarget)
>> If you want to be able to drop into the grid you should set the drop >> target on one of the visible windows, not its parent.
>> grid.GetGridWindow().SetDropTarget(drptgt)
> So I take it that the GridDragAndDrop.py example:
> class SimpleGrid(gridlib.Grid): > def __init__(self, parent, log): > gridlib.Grid.__init__(self, parent, -1) > ... > # set the drag and drop target > dropTarget = GridFileDropTarget(self) > self.SetDropTarget(dropTarget)
> is wrong.
Apparently not as that sample works fine on Mac for me, I guess I was misremembering something. Try to figure out what the difference is between your sample and the one in the demo, so we can narrow down where the problem is at.
> On 9/27/10 2:50 PM, bht wrote: >> Ah ha! Thanks this is indeed the solution:
>>> If you want to be able to drop into the grid you should set the drop >>> target on one of the visible windows, not its parent.
>>> grid.GetGridWindow().SetDropTarget(drptgt)
>> So I take it that the GridDragAndDrop.py example:
>> class SimpleGrid(gridlib.Grid): >> def __init__(self, parent, log): >> gridlib.Grid.__init__(self, parent, -1) >> ... >> # set the drag and drop target >> dropTarget = GridFileDropTarget(self) >> self.SetDropTarget(dropTarget)
>> is wrong.
> Apparently not as that sample works fine on Mac for me, I guess I was > misremembering something. Try to figure out what the difference is > between your sample and the one in the demo, so we can narrow down where > the problem is at.
Oops, what I was missing is that I ran one sample with wx 2.8 and the other with 2.9. In 2.9 this issue has been solved, and setting the Grid as the drop target on Mac will also work for drops done on the GridWindow.
