[BUG]app crashed when click on tree node #1544
Comments
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Thank you for the detailed report. |
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I tried the following program on linux: use fltk::prelude::*;
use fltk::*;
fn main() {
let app = app::App::default();
let mut w = window::Window::default().with_size(400, 300);
let mut tree = tree::Tree::default().with_size(400, 300);
tree.set_root_label(".");
tree.set_select_mode(tree::TreeSelect::Multi);
// tree.set_color(Color::Blue);
for i in 0 .. 5 {
let ti = tree::TreeItem::new(&tree, &*("item".to_owned() + &*i.to_string()));
tree.add_item("2/2/3/1", &ti);
}
for i in 0 .. 5 {
tree.add(&*("item".to_owned() + &*i.to_string()));
}
tree.set_callback(|t| {
if let Some(items) = t.get_selected_items() {
for i in items {
println!("{} selected", t.item_pathname(&i).unwrap());
}
}
});
w.end();
w.show();
app.run().unwrap();
}It doesn't cause a crash and also ran it under valgrind with no memory errors. Can you check on your system? |
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@MoAlyousef Thank you but sorry of my misleading message. Yes and your code works well. So I tried many times to comment / uncomment some code blocks in my project back and forth and eventually I found out the code causing crash. Badly I can't figure it out why the code is incorrect. So I uploaded it to a repo and create a pr. Please help me to solve it. you can see that it's |
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Thank you for sharing the code. I was able to minimize it to the following: use fltk::prelude::*;
use fltk::*;
use fltk::enums::*;
fn main() {
let app = app::App::default();
let mut w = window::Window::default().with_size(400, 300);
let mut i = input::Input::new(0, 0, 400, 40, None);
let mut tree = tree::Tree::new(0, 40, 400, 260, None);
tree.set_root_label(".");
tree.set_select_mode(tree::TreeSelect::Multi);
for i in 0 .. 5 {
let ti = tree::TreeItem::new(&tree, &*("item".to_owned() + &*i.to_string()));
tree.add_item("2/2/3/1", &ti);
}
w.end();
w.show();
i.handle(move |i, ev| match ev {
Event::Unfocus => {
tree.clear();
true
}
_ => false,
});
app.run().unwrap();
}I believe it's an issue with FLTK's focus. I'll try to reproduce in C++ then I'll report it there. |
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I've reported this and a fix was applied. If you can try the master branch by adding to your Cargo.toml: [patch.crates-io]
fltk = { git = "https://github.com/fltk-rs/fltk-rs" }Note, the issue upstream is still open for input by other core FLTK devs. |
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Yes man, it works as expected. good job doc! I'll close this issue. |
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Describe the bug
I'm writing a little desktop app on Mac and using
Tree.The core code is
when the 2nd
forblock is commented out, the app runs well. But after I added it to logic, when I click on any tree node, the App will crash.Process finished with exit code 139 (interrupted by signal 11:SIGSEGV)To Reproduce
see code above.
fltk=1.4.28
Expected behavior
no crash.
Screenshots
Desktop info
Additional info
System catch info :
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