From b8ad5dae9f6da3cd9ec664afd9cced4be2cadf07 Mon Sep 17 00:00:00 2001
From: unspeaker <hora.nqma@protonmail.com>
Date: Sun, 6 Apr 2025 18:59:50 +0300
Subject: [PATCH] 0.6.0: add trim_string

---
 Cargo.lock                        | 10 +++++-----
 Cargo.toml                        |  2 +-
 tui/src/tui_content.rs            | 10 ++++------
 tui/src/tui_content/tui_string.rs | 16 ++++++++++++++++
 4 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 3972207..c575065 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -934,7 +934,7 @@ dependencies = [
 
 [[package]]
 name = "tengri"
-version = "0.5.2"
+version = "0.6.0"
 dependencies = [
  "tengri_dsl",
  "tengri_input",
@@ -944,7 +944,7 @@ dependencies = [
 
 [[package]]
 name = "tengri_dsl"
-version = "0.5.2"
+version = "0.6.0"
 dependencies = [
  "itertools 0.14.0",
  "konst",
@@ -955,7 +955,7 @@ dependencies = [
 
 [[package]]
 name = "tengri_input"
-version = "0.5.2"
+version = "0.6.0"
 dependencies = [
  "tengri_dsl",
  "tengri_tui",
@@ -963,7 +963,7 @@ dependencies = [
 
 [[package]]
 name = "tengri_output"
-version = "0.5.2"
+version = "0.6.0"
 dependencies = [
  "proptest",
  "proptest-derive",
@@ -974,7 +974,7 @@ dependencies = [
 
 [[package]]
 name = "tengri_tui"
-version = "0.5.2"
+version = "0.6.0"
 dependencies = [
  "atomic_float",
  "better-panic",
diff --git a/Cargo.toml b/Cargo.toml
index d075434..b17bef8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [workspace.package]
-version = "0.5.2"
+version = "0.6.0"
 
 [workspace]
 resolver = "2"
diff --git a/tui/src/tui_content.rs b/tui/src/tui_content.rs
index 88014ca..0b15a95 100644
--- a/tui/src/tui_content.rs
+++ b/tui/src/tui_content.rs
@@ -1,12 +1,10 @@
 use crate::*;
-use ratatui::prelude::Position;
 
 macro_rules! impl_content_layout_render {
-    (
-        $Output:ty: |$self:ident: $Struct:ty, $to:ident|
-            layout = $layout:expr;
-            render = $render:expr
-    ) => {
+    ($Output:ty: |$self:ident: $Struct:ty, $to:ident|
+        layout = $layout:expr;
+        render = $render:expr) =>
+    {
         impl Content<$Output> for $Struct {
             fn layout (&$self, $to: [u16;4]) -> [u16;4] { $layout }
             fn render (&$self, $to: &mut $Output) { $render }
diff --git a/tui/src/tui_content/tui_string.rs b/tui/src/tui_content/tui_string.rs
index 73983c6..92b91fc 100644
--- a/tui/src/tui_content/tui_string.rs
+++ b/tui/src/tui_content/tui_string.rs
@@ -20,6 +20,22 @@ impl_content_layout_render!(TuiOut: |self: Arc<str>, to|
     layout = to.center_xy([self.chars().count() as u16, 1]);
     render = to.blit(self, to.area.x(), to.area.y(), None));
 
+/// Trim string with [unicode_width].
+pub fn trim_string (max_width: usize, input: impl AsRef<str>) -> String {
+    let input = input.as_ref();
+    let mut output = Vec::with_capacity(input.len());
+    let mut width: usize = 1;
+    let mut chars = input.chars();
+    while let Some(c) = chars.next() {
+        if width > max_width {
+            break
+        }
+        output.push(c);
+        width += c.width().unwrap_or(0);
+    }
+    return output.into_iter().collect()
+}
+
 /// Displays an owned [str]-like with fixed maximum width.
 ///
 /// Width is computed using [unicode_width].