Re: Help with spanning widgets over multiple rows

> On Jan 2, 2019, at 2:16 AM, Dietmar Schwertberger <[email protected]> wrote:
> 
> On 02.01.2019 00:10, M A wrote:
>> I installed Python 3.7.2 using brew: brew install python3. Then I installed wxpython like this: pip3 install -U wxPython. I then ran wxglade by double-clicking on the wxglade shell script. This launched wxglade but the window that opens up was blank. After a couple of tries the window started appearing normally. The about dialog for wxGlade displays this information: Version 0.9.0b2 on Python 3.7.2 and wxPython 4.0.3.
> On Windows, wxGlade does also register itself as handler for .wxg files. Not sure how to implement such for Mac Os.

I think this is how you do it:

defaults write com.apple.LaunchServices LSHandlers -array-add \
"<dict><key>LSHandlerContentTag</key>
<string>PUT_FILE_EXTENSION_HERE_WITHOUT_PERIOD</string><key>LSHandlerContentTagClass</key>
<string>public.filename-extension</string><key>LSHandlerRoleAll</key>
<string>org.category.program</string></dict>"

This may be done thru os.system(). Found this information here: 
https://stackoverflow.com/questions/2969987/macosx-file-extension-associate-with-application-programmatically


>> As a test I was able to span a button. The issue is the button does not expand when the wxEXPAND flag is set. It keeps the same sized shape instead.
> This is probably a limitation of wx on Mac Os. It always keeps the same height, it seems. You should see the background filling the available space, though:
> 
> On e.g. Windows the button itself will be extended:
> 
> <jecbfhdkakcpcocm.png><clmbbjombmaileoe.png>
> 
> 
> I have just noticed that weird things happen when you try to have a multi-line label on a button on Mac Os...

Looks like the label can make a button span multiple rows. I agree that this is probably a bug with wxPython. A simple fix for this issue is to just add a newline character to the button's label. 
Example: b1 = Button(frame, ID_ANY, "Button\n")

>>  Also the "Pos" field in the properties window remains greyed out.
> That's intentional. Enabling the re-enabling the Pos control would be a major effort with only a minor improvement in usability, I think. On revision 1.0 it would be easier to implement, but I don't think that I will do so.

Ok. That is understandable.

>> Since I can change the button's position using the tree view, I think being able to change it in the properties window should work also. I would also like to be able to move this button in the Design window as well.
> This should work. You should be able to drag a widget from one slot to another. For copying, try with Shift or Ctrl or Command button. Cut/Copy/Paste should also work in the Design window. 
> Dragging may not work with all widget types, depending also on the platform. Some widgets might handle the mouse event and thus avoid a drag start.

I just checked out the latest git version of wxGlade. Dragging a button from one cell to another does not work in the Design window. I also tried with a StaticText and RadioButton.


>> I would change the Layout tab's Span fields to have labels "Rows:" and "Columns:". This would make things more clear as to what these fields mean.
> Thanks, I will do so, either for 0.9 or 1.0. Probably I should spend a help page for the GridBagSizer as well.
> Also, the row-spanning seems to get lost on saving and re-loading. This needs to be fixed.

Just looked at the new labels. They look great. Thank you.

I also suggest add the feature of being able to span multiple rows and columns from the Design window. When a GridBagSizer is being used, the user should be able to grab one of the resize handles (blue box) and drag to overlap other cells.

Thank you.