FXTreeList-App crashes

Ruby
1

My FX-Application crashes, when I update an FXTreeItem-Icon in an
FXTreeList (setopenIcon / setClosedIcon) with an event-method
(right-mouse-click).
Does anybody have an idea ?

2

On Thu, 22 Feb 2007 13:15:13 +0100, Jörg Abelshauser
[email protected] wrote:

My FX-Application crashes, when I update an FXTreeItem-Icon in an
FXTreeList (setopenIcon / setClosedIcon) with an event-method
(right-mouse-click).
Does anybody have an idea ?

Run it with regular ruby.exe instead of rubyw.exe (if on Windows) to get
some details about the crash?

David V.

3

David V. wrote:

On Thu, 22 Feb 2007 13:15:13 +0100, Jörg Abelshauser
[email protected] wrote:

My FX-Application crashes, when I update an FXTreeItem-Icon in an
FXTreeList (setopenIcon / setClosedIcon) with an event-method
(right-mouse-click).
Does anybody have an idea ?

Run it with regular ruby.exe instead of rubyw.exe (if on Windows) to get
some details about the crash?

David V.

not really helpful:
FxGui.rb:547: [BUG] Segmentation fault
ruby 1.8.2 (2004-12-25) [i386-mswin32]

This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application’s support team for more information.

Further, here is the code-snippet, which is called when
right-mouse-click at an tree-item:

item = @tree.getFirstItem

if @toggle != 8
    @tree.setItemText(item, "Bla")
    icon = makeIcon("testnode.ico")
    @tree.setItemClosedIcon(item, icon)
    @toggle = 8
else
    @tree.setItemText(item, "Boing")
    icon = makeIcon("testnode.ico")
    @tree.setItemClosedIcon(item, icon)
    @toggle = 7
end

regards Jörg

4

…has helped ! Thanks a lot!
but it’s not obvious from the docs. Whats’s the difference between the
constructor and the create-method, the 1st icon , which i commit to the
item doesn’t need the create-method ???

regards Joerg

5

On 2/22/07 7:25 AM, in article
[email protected], “Jörg Abelshauser”
[email protected] wrote:

else
    @tree.setItemText(item, "Boing")
    icon = makeIcon("testnode.ico")
    @tree.setItemClosedIcon(item, icon)
    @toggle = 7
end

You need to call create() on the icon after you construct it, e.g.

icon = makeIcon("testnode.ico")
icon.create
@tree.setItemClosedIcon(item, icon)

Hope this helps,

Lyle

6

When you initially create the application, all children of the app are
created automatically.
If you add any new children after the initial App.create and you attempt
to access/display them, they have to be created, which you have to do
manually. I made this mistake before too.

Raj

7

On 2/23/07 2:47 AM, in article
[email protected], “Jörg Abelshauser”
[email protected] wrote:

…has helped ! Thanks a lot!

but it’s not obvious from the docs. Whats’s the difference between the
constructor and the create-method, the 1st icon , which i commit to the
item doesn’t need the create-method ???

This question is answered in the FAQ:

http://www.fox-toolkit.org/faq.html#ILLEGALICON

Hope this helps,

Lyle