From 04914f33ab829855502f134766693c7ca3672fe2 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sat, 15 Apr 2023 21:19:55 +0800
Subject: [PATCH] feat: add cursive-demo

---
 README.md                       |   3 +-
 __term/cursive-demo/Cargo.lock  | 492 ++++++++++++++++++++++++++++++++
 __term/cursive-demo/Cargo.toml  |   9 +
 __term/cursive-demo/src/main.rs |  91 ++++++
 4 files changed, 594 insertions(+), 1 deletion(-)
 create mode 100644 __term/cursive-demo/Cargo.lock
 create mode 100644 __term/cursive-demo/Cargo.toml
 create mode 100644 __term/cursive-demo/src/main.rs

diff --git a/README.md b/README.md
index b707ad3..fc15ff3 100644
--- a/README.md
+++ b/README.md
@@ -208,6 +208,7 @@ Project or files:
 │   ├── bunt
 │   ├── colored_msg
 │   ├── confy_table
+│   ├── cursive-demo
 │   ├── indicatif
 │   ├── prettyprint
 │   ├── rustyline
@@ -273,6 +274,6 @@ Project or files:
     ├── vec.rs
     └── while.rs
 
-242 directories, 39 files
+243 directories, 40 files
 ```
 
diff --git a/__term/cursive-demo/Cargo.lock b/__term/cursive-demo/Cargo.lock
new file mode 100644
index 0000000..85b3661
--- /dev/null
+++ b/__term/cursive-demo/Cargo.lock
@@ -0,0 +1,492 @@
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+# It is not intended for manual editing.
+version = 3
+
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+ "once_cell",
+ "version_check",
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+ "cursive_core",
+ "lazy_static",
+ "libc",
+ "log",
+ "maplit",
+ "ncurses",
+ "signal-hook",
+ "term_size",
+ "unicode-segmentation",
+ "unicode-width",
+]
+
+[[package]]
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+version = "0.1.0"
+dependencies = [
+ "cursive",
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diff --git a/__term/cursive-demo/Cargo.toml b/__term/cursive-demo/Cargo.toml
new file mode 100644
index 0000000..1db3d5d
--- /dev/null
+++ b/__term/cursive-demo/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "cursive-demo"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cursive = "0.20.0"
diff --git a/__term/cursive-demo/src/main.rs b/__term/cursive-demo/src/main.rs
new file mode 100644
index 0000000..71c78d4
--- /dev/null
+++ b/__term/cursive-demo/src/main.rs
@@ -0,0 +1,91 @@
+use cursive::{event::Key, menu, traits::*, views::Dialog};
+use std::sync::atomic::{AtomicUsize, Ordering};
+
+// This examples shows how to configure and use a menubar at the top of the
+// application.
+
+fn main() {
+    let mut siv = cursive::default();
+
+    // We'll use a counter to name new files.
+    let counter = AtomicUsize::new(1);
+
+    // The menubar is a list of (label, menu tree) pairs.
+    siv.menubar()
+        // We add a new "File" tree
+        .add_subtree(
+            "File",
+            menu::Tree::new()
+                // Trees are made of leaves, with are directly actionable...
+                .leaf("New", move |s| {
+                    // Here we use the counter to add an entry
+                    // in the list of "Recent" items.
+                    let i = counter.fetch_add(1, Ordering::Relaxed);
+                    let filename = format!("New {i}");
+                    s.menubar()
+                        .find_subtree("File")
+                        .unwrap()
+                        .find_subtree("Recent")
+                        .unwrap()
+                        .insert_leaf(0, filename, |_| ());
+
+                    s.add_layer(Dialog::info("New file!"));
+                })
+                // ... and of sub-trees, which open up when selected.
+                .subtree(
+                    "Recent",
+                    // The `.with()` method can help when running loops
+                    // within builder patterns.
+                    menu::Tree::new().with(|tree| {
+                        for i in 1..100 {
+                            // We don't actually do anything here,
+                            // but you could!
+                            tree.add_item(menu::Item::leaf(format!("Item {i}"), |_| ()).with(|s| {
+                                if i % 5 == 0 { s.disable(); }
+                            }))
+                        }
+                    }),
+                )
+                // Delimiter are simple lines between items,
+                // and cannot be selected.
+                .delimiter()
+                .with(|tree| {
+                    for i in 1..10 {
+                        tree.add_leaf(format!("Option {i}"), |_| ());
+                    }
+                }),
+        )
+        .add_subtree(
+            "Help",
+            menu::Tree::new()
+                .subtree(
+                    "Help",
+                    menu::Tree::new()
+                        .leaf("General", |s| {
+                            s.add_layer(Dialog::info("Help message!"))
+                        })
+                        .leaf("Online", |s| {
+                            let text = "Google it yourself!\n\
+                                        Kids, these days...";
+                            s.add_layer(Dialog::info(text))
+                        }),
+                )
+                .leaf("About", |s| {
+                    s.add_layer(Dialog::info("Cursive v0.0.0"))
+                }),
+        )
+        .add_delimiter()
+        .add_leaf("Quit", |s| s.quit());
+
+    // When `autohide` is on (default), the menu only appears when active.
+    // Turning it off will leave the menu always visible.
+    // Try uncommenting this line!
+
+    // siv.set_autohide_menu(false);
+
+    siv.add_global_callback(Key::Esc, |s| s.select_menubar());
+
+    siv.add_layer(Dialog::text("Hit <Esc> to show the menu!"));
+
+    siv.run();
+}