Comments (3)
You are on the right track with TypedListRef
. However, TypeList*
is for primitive types (such as CInt
), but your list is tracking a reference to another GTK object (a TreePath
), what you probably want here is something along the following lines:
myIconView.onSelectionChanged { (unownedSelf: IconViewRef) in
print ("Change in selection")
if let selectedItems = unownedSelf.selectedItems {
let typedSelectedItems = ReferenceListRef<TreePathRef>(selectedItems)
print ("Before the loop")
for path in typedSelectedItems {
print("Inside the loop")
// (More code here...)
}
}
}
Could you let me know if this works for you?
from swiftglib.
The reason why I'm using a Glib.ListRef
is because I'm on Gtk3, iterating over the selectedItems
of an IconView
, and the getSelectedRows()
of a GtkTreeSelection
. Both of them return a ListRef
representing a list of TreePath
objects.
After some digging on the latest commits, I found out Glib.ListRef
was replaced with a typed variant: TypedListRef
. ListRef
still exists as generated code, but it does not longer conform to the Sequence
protocol, while the new one TypedListRef
does conform to the protocol.
After that, now I'm using IconView.selectedItems: ListRef
to create a TypedListRef<TreePath>
. This is how my code looks now:
myIconView.onSelectionChanged { (unownedSelf: IconViewRef) in
print ("Change in selection")
if let selectedItems = unownedSelf.selectedItems {
let typedSelectedItems = TypedListRef<TreePath>(selectedItems)
print ("Before the loop")
for path in typedSelectedItems {
print("Inside the loop")
// (More code here...)
}
}
}
Now, my code compiles correctly, without any error messages, but I'm having a new problem: The program crashes when i'm iterating over the TypedListRef
:
Change in selection
Before the loop
fish: Job 1, 'swift run MySwiftProgram' terminated by signal SIGSEGV (Address boundary error)
I think the crash happens in the for path in typedSelectedItems {
line, because the previous message is printed to the terminal, but the inside print
statement does not get executed.
from swiftglib.
Yes, using ReferenceListRef<TreePathRef>
instead of TypedListRef<TreePath>
solved my problem.
Thanks!
from swiftglib.
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