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Automatically grow textarea

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This commit is contained in:
Markus Unterwaditzer 2017-04-21 23:03:10 +02:00
parent 5edc6fc163
commit 14cfe3604a
1 changed files with 7 additions and 2 deletions
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9
src/views/text_area.rs
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@ -13,8 +13,8 @@ use view::{ScrollBase, SizeCache, View};
/// Multi-lines text editor. /// Multi-lines text editor.
/// ///
/// A `TextArea` by itself doesn't have a well-defined size. /// A `TextArea` will attempt to grow vertically dependent on the content.
/// You should wrap it in a `BoxView` to control its size. /// Wrap it in a `BoxView` to constrain its size.
pub struct TextArea { pub struct TextArea {
// TODO: use a smarter data structure (rope?) // TODO: use a smarter data structure (rope?)
content: String, content: String,
@ -362,6 +362,11 @@ impl TextArea {
} }
impl View for TextArea { impl View for TextArea {
fn required_size(&mut self, constraint: Vec2) -> Vec2 {
self.compute_rows(constraint);
Vec2::new(1, self.rows.len())
}
fn draw(&self, printer: &Printer) { fn draw(&self, printer: &Printer) {
printer.with_color(ColorStyle::Secondary, |printer| { printer.with_color(ColorStyle::Secondary, |printer| {
let effect = if self.enabled { let effect = if self.enabled {