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authorLibravatar Héctor Ramón Jiménez <hector0193@gmail.com>2023-03-04 05:37:11 +0100
committerLibravatar Héctor Ramón Jiménez <hector0193@gmail.com>2023-03-04 05:37:11 +0100
commit3a0d34c0240f4421737a6a08761f99d6f8140d02 (patch)
treec9a4a6b8e9c1db1b8fcd05bc98e3f131d5ef4bd5 /native/src/widget/text_input/value.rs
parentc54409d1711e1f615c7ea4b02c082954e340632a (diff)
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Create `iced_widget` subcrate and re-organize the whole codebase
Diffstat (limited to 'native/src/widget/text_input/value.rs')
-rw-r--r--native/src/widget/text_input/value.rs133
1 files changed, 0 insertions, 133 deletions
diff --git a/native/src/widget/text_input/value.rs b/native/src/widget/text_input/value.rs
deleted file mode 100644
index cf4da562..00000000
--- a/native/src/widget/text_input/value.rs
+++ /dev/null
@@ -1,133 +0,0 @@
-use unicode_segmentation::UnicodeSegmentation;
-
-/// The value of a [`TextInput`].
-///
-/// [`TextInput`]: crate::widget::TextInput
-// TODO: Reduce allocations, cache results (?)
-#[derive(Debug, Clone)]
-pub struct Value {
- graphemes: Vec<String>,
-}
-
-impl Value {
- /// Creates a new [`Value`] from a string slice.
- pub fn new(string: &str) -> Self {
- let graphemes = UnicodeSegmentation::graphemes(string, true)
- .map(String::from)
- .collect();
-
- Self { graphemes }
- }
-
- /// Returns whether the [`Value`] is empty or not.
- ///
- /// A [`Value`] is empty when it contains no graphemes.
- pub fn is_empty(&self) -> bool {
- self.len() == 0
- }
-
- /// Returns the total amount of graphemes in the [`Value`].
- pub fn len(&self) -> usize {
- self.graphemes.len()
- }
-
- /// Returns the position of the previous start of a word from the given
- /// grapheme `index`.
- pub fn previous_start_of_word(&self, index: usize) -> usize {
- let previous_string =
- &self.graphemes[..index.min(self.graphemes.len())].concat();
-
- UnicodeSegmentation::split_word_bound_indices(previous_string as &str)
- .filter(|(_, word)| !word.trim_start().is_empty())
- .next_back()
- .map(|(i, previous_word)| {
- index
- - UnicodeSegmentation::graphemes(previous_word, true)
- .count()
- - UnicodeSegmentation::graphemes(
- &previous_string[i + previous_word.len()..] as &str,
- true,
- )
- .count()
- })
- .unwrap_or(0)
- }
-
- /// Returns the position of the next end of a word from the given grapheme
- /// `index`.
- pub fn next_end_of_word(&self, index: usize) -> usize {
- let next_string = &self.graphemes[index..].concat();
-
- UnicodeSegmentation::split_word_bound_indices(next_string as &str)
- .find(|(_, word)| !word.trim_start().is_empty())
- .map(|(i, next_word)| {
- index
- + UnicodeSegmentation::graphemes(next_word, true).count()
- + UnicodeSegmentation::graphemes(
- &next_string[..i] as &str,
- true,
- )
- .count()
- })
- .unwrap_or(self.len())
- }
-
- /// Returns a new [`Value`] containing the graphemes from `start` until the
- /// given `end`.
- pub fn select(&self, start: usize, end: usize) -> Self {
- let graphemes =
- self.graphemes[start.min(self.len())..end.min(self.len())].to_vec();
-
- Self { graphemes }
- }
-
- /// Returns a new [`Value`] containing the graphemes until the given
- /// `index`.
- pub fn until(&self, index: usize) -> Self {
- let graphemes = self.graphemes[..index.min(self.len())].to_vec();
-
- Self { graphemes }
- }
-
- /// Converts the [`Value`] into a `String`.
- pub fn to_string(&self) -> String {
- self.graphemes.concat()
- }
-
- /// Inserts a new `char` at the given grapheme `index`.
- pub fn insert(&mut self, index: usize, c: char) {
- self.graphemes.insert(index, c.to_string());
-
- self.graphemes =
- UnicodeSegmentation::graphemes(&self.to_string() as &str, true)
- .map(String::from)
- .collect();
- }
-
- /// Inserts a bunch of graphemes at the given grapheme `index`.
- pub fn insert_many(&mut self, index: usize, mut value: Value) {
- let _ = self
- .graphemes
- .splice(index..index, value.graphemes.drain(..));
- }
-
- /// Removes the grapheme at the given `index`.
- pub fn remove(&mut self, index: usize) {
- let _ = self.graphemes.remove(index);
- }
-
- /// Removes the graphemes from `start` to `end`.
- pub fn remove_many(&mut self, start: usize, end: usize) {
- let _ = self.graphemes.splice(start..end, std::iter::empty());
- }
-
- /// Returns a new [`Value`] with all its graphemes replaced with the
- /// dot ('•') character.
- pub fn secure(&self) -> Self {
- Self {
- graphemes: std::iter::repeat(String::from("•"))
- .take(self.graphemes.len())
- .collect(),
- }
- }
-}