Draft Editor API and TextEditor widget
This commit is contained in:
parent
346af3f8b0
commit
6448429103
25 changed files with 1384 additions and 92 deletions
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@ -2,7 +2,7 @@
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use crate::{Length, Padding, Size};
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/// A set of size constraints for layouting.
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#[derive(Debug, Clone, Copy)]
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#[derive(Debug, Clone, Copy, PartialEq)]
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pub struct Limits {
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min: Size,
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max: Size,
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@ -12,7 +12,7 @@
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#![forbid(unsafe_code, rust_2018_idioms)]
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#![deny(
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missing_debug_implementations,
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missing_docs,
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// missing_docs,
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unused_results,
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clippy::extra_unused_lifetimes,
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clippy::from_over_into,
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@ -43,6 +43,7 @@ impl Renderer for Null {
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impl text::Renderer for Null {
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type Font = Font;
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type Paragraph = ();
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type Editor = ();
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const ICON_FONT: Font = Font::DEFAULT;
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const CHECKMARK_ICON: char = '0';
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@ -66,6 +67,14 @@ impl text::Renderer for Null {
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) {
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}
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fn fill_editor(
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&mut self,
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_editor: &Self::Editor,
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_position: Point,
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_color: Color,
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) {
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}
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fn fill_text(
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&mut self,
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_paragraph: Text<'_, Self::Font>,
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@ -106,3 +115,32 @@ impl text::Paragraph for () {
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None
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}
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}
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impl text::Editor for () {
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type Font = Font;
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fn with_text(_text: &str) -> Self {}
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fn cursor(&self) -> text::editor::Cursor {
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text::editor::Cursor::Caret(Point::ORIGIN)
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}
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fn perform(&mut self, _action: text::editor::Action) {}
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fn bounds(&self) -> Size {
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Size::ZERO
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}
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fn min_bounds(&self) -> Size {
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Size::ZERO
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}
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fn update(
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&mut self,
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_new_bounds: Size,
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_new_font: Self::Font,
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_new_size: Pixels,
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_new_line_height: text::LineHeight,
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) {
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}
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}
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123
core/src/text.rs
123
core/src/text.rs
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@ -1,4 +1,11 @@
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//! Draw and interact with text.
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mod paragraph;
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pub mod editor;
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pub use editor::Editor;
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pub use paragraph::Paragraph;
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use crate::alignment;
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use crate::{Color, Pixels, Point, Size};
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@ -126,6 +133,31 @@ impl Hit {
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}
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}
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/// The difference detected in some text.
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///
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/// You will obtain a [`Difference`] when you [`compare`] a [`Paragraph`] with some
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/// [`Text`].
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum Difference {
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/// No difference.
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///
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/// The text can be reused as it is!
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None,
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/// A bounds difference.
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///
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/// This normally means a relayout is necessary, but the shape of the text can
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/// be reused.
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Bounds,
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/// A shape difference.
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///
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/// The contents, alignment, sizes, fonts, or any other essential attributes
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/// of the shape of the text have changed. A complete reshape and relayout of
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/// the text is necessary.
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Shape,
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}
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/// A renderer capable of measuring and drawing [`Text`].
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pub trait Renderer: crate::Renderer {
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/// The font type used.
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@ -134,6 +166,9 @@ pub trait Renderer: crate::Renderer {
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/// The [`Paragraph`] of this [`Renderer`].
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type Paragraph: Paragraph<Font = Self::Font> + 'static;
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/// The [`Editor`] of this [`Renderer`].
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type Editor: Editor<Font = Self::Font> + 'static;
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/// The icon font of the backend.
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const ICON_FONT: Self::Font;
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@ -165,6 +200,13 @@ pub trait Renderer: crate::Renderer {
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color: Color,
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);
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fn fill_editor(
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&mut self,
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editor: &Self::Editor,
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position: Point,
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color: Color,
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);
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/// Draws the given [`Text`] at the given position and with the given
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/// [`Color`].
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fn fill_text(
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@ -174,84 +216,3 @@ pub trait Renderer: crate::Renderer {
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color: Color,
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);
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}
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/// A text paragraph.
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pub trait Paragraph: Sized + Default {
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/// The font of this [`Paragraph`].
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type Font: Copy + PartialEq;
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/// Creates a new [`Paragraph`] laid out with the given [`Text`].
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fn with_text(text: Text<'_, Self::Font>) -> Self;
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/// Lays out the [`Paragraph`] with some new boundaries.
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fn resize(&mut self, new_bounds: Size);
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/// Compares the [`Paragraph`] with some desired [`Text`] and returns the
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/// [`Difference`].
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fn compare(&self, text: Text<'_, Self::Font>) -> Difference;
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/// Returns the horizontal alignment of the [`Paragraph`].
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fn horizontal_alignment(&self) -> alignment::Horizontal;
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/// Returns the vertical alignment of the [`Paragraph`].
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fn vertical_alignment(&self) -> alignment::Vertical;
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/// Returns the minimum boundaries that can fit the contents of the
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/// [`Paragraph`].
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fn min_bounds(&self) -> Size;
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/// Tests whether the provided point is within the boundaries of the
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/// [`Paragraph`], returning information about the nearest character.
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fn hit_test(&self, point: Point) -> Option<Hit>;
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/// Returns the distance to the given grapheme index in the [`Paragraph`].
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fn grapheme_position(&self, line: usize, index: usize) -> Option<Point>;
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/// Updates the [`Paragraph`] to match the given [`Text`], if needed.
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fn update(&mut self, text: Text<'_, Self::Font>) {
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match self.compare(text) {
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Difference::None => {}
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Difference::Bounds => {
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self.resize(text.bounds);
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}
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Difference::Shape => {
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*self = Self::with_text(text);
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}
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}
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}
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/// Returns the minimum width that can fit the contents of the [`Paragraph`].
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fn min_width(&self) -> f32 {
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self.min_bounds().width
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}
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/// Returns the minimum height that can fit the contents of the [`Paragraph`].
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fn min_height(&self) -> f32 {
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self.min_bounds().height
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}
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}
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/// The difference detected in some text.
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///
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/// You will obtain a [`Difference`] when you [`compare`] a [`Paragraph`] with some
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/// [`Text`].
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum Difference {
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/// No difference.
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///
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/// The text can be reused as it is!
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None,
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/// A bounds difference.
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///
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/// This normally means a relayout is necessary, but the shape of the text can
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/// be reused.
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Bounds,
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/// A shape difference.
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///
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/// The contents, alignment, sizes, fonts, or any other essential attributes
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/// of the shape of the text have changed. A complete reshape and relayout of
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/// the text is necessary.
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Shape,
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}
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68
core/src/text/editor.rs
Normal file
68
core/src/text/editor.rs
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@ -0,0 +1,68 @@
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use crate::text::LineHeight;
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use crate::{Pixels, Point, Rectangle, Size};
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pub trait Editor: Sized + Default {
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type Font: Copy + PartialEq + Default;
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/// Creates a new [`Editor`] laid out with the given text.
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fn with_text(text: &str) -> Self;
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fn cursor(&self) -> Cursor;
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fn perform(&mut self, action: Action);
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/// Returns the current boundaries of the [`Editor`].
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fn bounds(&self) -> Size;
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/// Returns the minimum boundaries that can fit the contents of the
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/// [`Editor`].
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fn min_bounds(&self) -> Size;
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/// Updates the [`Editor`] with some new attributes.
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fn update(
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&mut self,
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new_bounds: Size,
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new_font: Self::Font,
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new_size: Pixels,
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new_line_height: LineHeight,
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);
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/// Returns the minimum width that can fit the contents of the [`Editor`].
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fn min_width(&self) -> f32 {
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self.min_bounds().width
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}
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/// Returns the minimum height that can fit the contents of the [`Editor`].
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fn min_height(&self) -> f32 {
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self.min_bounds().height
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}
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}
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#[derive(Debug, Clone, Copy, PartialEq)]
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pub enum Action {
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MoveLeft,
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MoveRight,
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MoveUp,
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MoveDown,
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MoveLeftWord,
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MoveRightWord,
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MoveHome,
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MoveEnd,
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SelectWord,
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SelectLine,
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Insert(char),
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Backspace,
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Delete,
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Click(Point),
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Drag(Point),
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}
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/// The cursor of an [`Editor`].
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#[derive(Debug, Clone)]
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pub enum Cursor {
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/// Cursor without a selection
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Caret(Point),
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/// Cursor selecting a range of text
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Selection(Vec<Rectangle>),
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}
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59
core/src/text/paragraph.rs
Normal file
59
core/src/text/paragraph.rs
Normal file
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@ -0,0 +1,59 @@
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use crate::alignment;
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use crate::text::{Difference, Hit, Text};
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use crate::{Point, Size};
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/// A text paragraph.
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pub trait Paragraph: Sized + Default {
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/// The font of this [`Paragraph`].
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type Font: Copy + PartialEq;
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/// Creates a new [`Paragraph`] laid out with the given [`Text`].
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fn with_text(text: Text<'_, Self::Font>) -> Self;
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/// Lays out the [`Paragraph`] with some new boundaries.
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fn resize(&mut self, new_bounds: Size);
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/// Compares the [`Paragraph`] with some desired [`Text`] and returns the
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/// [`Difference`].
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fn compare(&self, text: Text<'_, Self::Font>) -> Difference;
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/// Returns the horizontal alignment of the [`Paragraph`].
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fn horizontal_alignment(&self) -> alignment::Horizontal;
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/// Returns the vertical alignment of the [`Paragraph`].
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fn vertical_alignment(&self) -> alignment::Vertical;
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/// Returns the minimum boundaries that can fit the contents of the
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/// [`Paragraph`].
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fn min_bounds(&self) -> Size;
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/// Tests whether the provided point is within the boundaries of the
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/// [`Paragraph`], returning information about the nearest character.
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fn hit_test(&self, point: Point) -> Option<Hit>;
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/// Returns the distance to the given grapheme index in the [`Paragraph`].
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fn grapheme_position(&self, line: usize, index: usize) -> Option<Point>;
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/// Updates the [`Paragraph`] to match the given [`Text`], if needed.
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fn update(&mut self, text: Text<'_, Self::Font>) {
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match self.compare(text) {
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Difference::None => {}
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Difference::Bounds => {
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self.resize(text.bounds);
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}
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Difference::Shape => {
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*self = Self::with_text(text);
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}
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}
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}
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/// Returns the minimum width that can fit the contents of the [`Paragraph`].
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fn min_width(&self) -> f32 {
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self.min_bounds().width
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}
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/// Returns the minimum height that can fit the contents of the [`Paragraph`].
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fn min_height(&self) -> f32 {
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self.min_bounds().height
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}
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}
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10
examples/editor/Cargo.toml
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10
examples/editor/Cargo.toml
Normal file
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[package]
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name = "editor"
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version = "0.1.0"
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authors = ["Héctor Ramón Jiménez <hector@hecrj.dev>"]
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edition = "2021"
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publish = false
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[dependencies]
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iced.workspace = true
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iced.features = ["debug"]
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49
examples/editor/src/main.rs
Normal file
49
examples/editor/src/main.rs
Normal file
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@ -0,0 +1,49 @@
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use iced::widget::{container, text_editor};
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use iced::{Element, Font, Sandbox, Settings};
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pub fn main() -> iced::Result {
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Editor::run(Settings::default())
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}
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struct Editor {
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content: text_editor::Content,
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}
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#[derive(Debug, Clone, Copy)]
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enum Message {
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Edit(text_editor::Action),
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}
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impl Sandbox for Editor {
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type Message = Message;
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fn new() -> Self {
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Self {
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content: text_editor::Content::with(include_str!(
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"../../../README.md"
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)),
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}
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}
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fn title(&self) -> String {
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String::from("Editor - Iced")
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}
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fn update(&mut self, message: Message) {
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match message {
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Message::Edit(action) => {
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self.content.edit(action);
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}
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}
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}
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fn view(&self) -> Element<Message> {
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container(
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text_editor(&self.content)
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.on_edit(Message::Edit)
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.font(Font::with_name("Hasklug Nerd Font Mono")),
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)
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.padding(20)
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.into()
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}
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}
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@ -66,6 +66,13 @@ impl<T: Damage> Damage for Primitive<T> {
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bounds.expand(1.5)
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}
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Self::Editor {
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editor, position, ..
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} => {
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let bounds = Rectangle::new(*position, editor.bounds);
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bounds.expand(1.5)
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}
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Self::Quad { bounds, .. }
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| Self::Image { bounds, .. }
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| Self::Svg { bounds, .. } => bounds.expand(1.0),
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|
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@ -4,6 +4,7 @@ use crate::core::image;
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use crate::core::svg;
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use crate::core::text;
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use crate::core::{Background, Color, Font, Pixels, Point, Rectangle, Vector};
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use crate::text::editor;
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use crate::text::paragraph;
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use std::sync::Arc;
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@ -41,6 +42,15 @@ pub enum Primitive<T> {
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/// The color of the paragraph.
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color: Color,
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},
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/// An editor primitive
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Editor {
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/// The [`editor::Weak`] reference.
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editor: editor::Weak,
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/// The position of the paragraph.
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position: Point,
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/// The color of the paragraph.
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color: Color,
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},
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/// A quad primitive
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Quad {
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/// The bounds of the quad
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|
|
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|
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@ -141,6 +141,7 @@ where
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{
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type Font = Font;
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type Paragraph = text::Paragraph;
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type Editor = text::Editor;
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const ICON_FONT: Font = Font::with_name("Iced-Icons");
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const CHECKMARK_ICON: char = '\u{f00c}';
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|
|
@ -171,6 +172,19 @@ where
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});
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}
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fn fill_editor(
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&mut self,
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editor: &Self::Editor,
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position: Point,
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color: Color,
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) {
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self.primitives.push(Primitive::Editor {
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editor: editor.downgrade(),
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position,
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color,
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});
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}
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fn fill_text(
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&mut self,
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text: Text<'_, Self::Font>,
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|
|
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|
|
@ -1,7 +1,9 @@
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pub mod cache;
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pub mod editor;
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pub mod paragraph;
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pub use cache::Cache;
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pub use editor::Editor;
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pub use paragraph::Paragraph;
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pub use cosmic_text;
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|
|
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327
graphics/src/text/editor.rs
Normal file
327
graphics/src/text/editor.rs
Normal file
|
|
@ -0,0 +1,327 @@
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use crate::core::text::editor::{self, Action, Cursor};
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use crate::core::text::LineHeight;
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use crate::core::{Font, Pixels, Point, Size};
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use crate::text;
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use cosmic_text::Edit;
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use std::fmt;
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use std::sync::{self, Arc};
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#[derive(Debug, PartialEq)]
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pub struct Editor(Option<Arc<Internal>>);
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struct Internal {
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editor: cosmic_text::Editor,
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||||
font: Font,
|
||||
bounds: Size,
|
||||
min_bounds: Size,
|
||||
version: text::Version,
|
||||
}
|
||||
|
||||
impl Editor {
|
||||
pub fn new() -> Self {
|
||||
Self::default()
|
||||
}
|
||||
|
||||
pub fn buffer(&self) -> &cosmic_text::Buffer {
|
||||
&self.internal().editor.buffer()
|
||||
}
|
||||
|
||||
pub fn downgrade(&self) -> Weak {
|
||||
let editor = self.internal();
|
||||
|
||||
Weak {
|
||||
raw: Arc::downgrade(editor),
|
||||
bounds: editor.bounds,
|
||||
}
|
||||
}
|
||||
|
||||
fn internal(&self) -> &Arc<Internal> {
|
||||
self.0
|
||||
.as_ref()
|
||||
.expect("editor should always be initialized")
|
||||
}
|
||||
}
|
||||
|
||||
impl editor::Editor for Editor {
|
||||
type Font = Font;
|
||||
|
||||
fn with_text(text: &str) -> Self {
|
||||
let mut buffer = cosmic_text::Buffer::new_empty(cosmic_text::Metrics {
|
||||
font_size: 1.0,
|
||||
line_height: 1.0,
|
||||
});
|
||||
|
||||
buffer.set_text(
|
||||
text::font_system()
|
||||
.write()
|
||||
.expect("Write font system")
|
||||
.raw(),
|
||||
text,
|
||||
cosmic_text::Attrs::new(),
|
||||
cosmic_text::Shaping::Advanced,
|
||||
);
|
||||
|
||||
Editor(Some(Arc::new(Internal {
|
||||
editor: cosmic_text::Editor::new(buffer),
|
||||
..Default::default()
|
||||
})))
|
||||
}
|
||||
|
||||
fn cursor(&self) -> editor::Cursor {
|
||||
let internal = self.internal();
|
||||
|
||||
match internal.editor.select_opt() {
|
||||
Some(selection) => {
|
||||
// TODO
|
||||
Cursor::Selection(vec![])
|
||||
}
|
||||
None => {
|
||||
let cursor = internal.editor.cursor();
|
||||
let buffer = internal.editor.buffer();
|
||||
|
||||
let lines_before_cursor: usize = buffer
|
||||
.lines
|
||||
.iter()
|
||||
.take(cursor.line)
|
||||
.map(|line| {
|
||||
line.layout_opt()
|
||||
.as_ref()
|
||||
.expect("Line layout should be cached")
|
||||
.len()
|
||||
})
|
||||
.sum();
|
||||
|
||||
let line = buffer
|
||||
.lines
|
||||
.get(cursor.line)
|
||||
.expect("Cursor line should be present");
|
||||
|
||||
let layout = line
|
||||
.layout_opt()
|
||||
.as_ref()
|
||||
.expect("Line layout should be cached");
|
||||
|
||||
let mut lines = layout.iter().enumerate();
|
||||
|
||||
let (subline, offset) = lines
|
||||
.find_map(|(i, line)| {
|
||||
let start = line
|
||||
.glyphs
|
||||
.first()
|
||||
.map(|glyph| glyph.start)
|
||||
.unwrap_or(0);
|
||||
let end = line
|
||||
.glyphs
|
||||
.last()
|
||||
.map(|glyph| glyph.end)
|
||||
.unwrap_or(0);
|
||||
|
||||
let is_cursor_after_start = start <= cursor.index;
|
||||
|
||||
let is_cursor_before_end = match cursor.affinity {
|
||||
cosmic_text::Affinity::Before => {
|
||||
cursor.index <= end
|
||||
}
|
||||
cosmic_text::Affinity::After => cursor.index < end,
|
||||
};
|
||||
|
||||
if is_cursor_after_start && is_cursor_before_end {
|
||||
let offset = line
|
||||
.glyphs
|
||||
.iter()
|
||||
.take_while(|glyph| cursor.index > glyph.start)
|
||||
.map(|glyph| glyph.w)
|
||||
.sum();
|
||||
|
||||
Some((i, offset))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
})
|
||||
.unwrap_or((0, 0.0));
|
||||
|
||||
let line_height = buffer.metrics().line_height;
|
||||
|
||||
let scroll_offset = buffer.scroll() as f32 * line_height;
|
||||
|
||||
Cursor::Caret(Point::new(
|
||||
offset,
|
||||
(lines_before_cursor + subline) as f32 * line_height
|
||||
- scroll_offset,
|
||||
))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn perform(&mut self, action: Action) {
|
||||
let mut font_system =
|
||||
text::font_system().write().expect("Write font system");
|
||||
|
||||
let editor =
|
||||
self.0.take().expect("Editor should always be initialized");
|
||||
|
||||
// TODO: Handle multiple strong references somehow
|
||||
let mut internal = Arc::try_unwrap(editor)
|
||||
.expect("Editor cannot have multiple strong references");
|
||||
|
||||
let editor = &mut internal.editor;
|
||||
|
||||
let mut act = |action| editor.action(font_system.raw(), action);
|
||||
|
||||
match action {
|
||||
Action::MoveLeft => act(cosmic_text::Action::Left),
|
||||
Action::MoveRight => act(cosmic_text::Action::Right),
|
||||
Action::MoveUp => act(cosmic_text::Action::Up),
|
||||
Action::MoveDown => act(cosmic_text::Action::Down),
|
||||
Action::Insert(c) => act(cosmic_text::Action::Insert(c)),
|
||||
Action::Backspace => act(cosmic_text::Action::Backspace),
|
||||
Action::Delete => act(cosmic_text::Action::Delete),
|
||||
Action::Click(position) => act(cosmic_text::Action::Click {
|
||||
x: position.x as i32,
|
||||
y: position.y as i32,
|
||||
}),
|
||||
Action::Drag(position) => act(cosmic_text::Action::Drag {
|
||||
x: position.x as i32,
|
||||
y: position.y as i32,
|
||||
}),
|
||||
_ => todo!(),
|
||||
}
|
||||
|
||||
editor.shape_as_needed(font_system.raw());
|
||||
|
||||
self.0 = Some(Arc::new(internal));
|
||||
}
|
||||
|
||||
fn bounds(&self) -> Size {
|
||||
self.internal().bounds
|
||||
}
|
||||
|
||||
fn min_bounds(&self) -> Size {
|
||||
self.internal().min_bounds
|
||||
}
|
||||
|
||||
fn update(
|
||||
&mut self,
|
||||
new_bounds: Size,
|
||||
new_font: Font,
|
||||
new_size: Pixels,
|
||||
new_line_height: LineHeight,
|
||||
) {
|
||||
let editor =
|
||||
self.0.take().expect("editor should always be initialized");
|
||||
|
||||
let mut internal = Arc::try_unwrap(editor)
|
||||
.expect("Editor cannot have multiple strong references");
|
||||
|
||||
let mut font_system =
|
||||
text::font_system().write().expect("Write font system");
|
||||
|
||||
let mut changed = false;
|
||||
|
||||
if new_font != internal.font {
|
||||
for line in internal.editor.buffer_mut().lines.iter_mut() {
|
||||
let _ = line.set_attrs_list(cosmic_text::AttrsList::new(
|
||||
text::to_attributes(new_font),
|
||||
));
|
||||
}
|
||||
|
||||
changed = true;
|
||||
}
|
||||
|
||||
let metrics = internal.editor.buffer().metrics();
|
||||
let new_line_height = new_line_height.to_absolute(new_size);
|
||||
|
||||
if new_size.0 != metrics.font_size
|
||||
|| new_line_height.0 != metrics.line_height
|
||||
{
|
||||
internal.editor.buffer_mut().set_metrics(
|
||||
font_system.raw(),
|
||||
cosmic_text::Metrics::new(new_size.0, new_line_height.0),
|
||||
);
|
||||
|
||||
changed = true;
|
||||
}
|
||||
|
||||
if new_bounds != internal.bounds {
|
||||
internal.editor.buffer_mut().set_size(
|
||||
font_system.raw(),
|
||||
new_bounds.width,
|
||||
new_bounds.height,
|
||||
);
|
||||
|
||||
internal.bounds = new_bounds;
|
||||
changed = true;
|
||||
}
|
||||
|
||||
if changed {
|
||||
internal.min_bounds = text::measure(&internal.editor.buffer());
|
||||
}
|
||||
|
||||
self.0 = Some(Arc::new(internal));
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Editor {
|
||||
fn default() -> Self {
|
||||
Self(Some(Arc::new(Internal::default())))
|
||||
}
|
||||
}
|
||||
|
||||
impl PartialEq for Internal {
|
||||
fn eq(&self, other: &Self) -> bool {
|
||||
self.font == other.font
|
||||
&& self.bounds == other.bounds
|
||||
&& self.min_bounds == other.min_bounds
|
||||
&& self.editor.buffer().metrics() == other.editor.buffer().metrics()
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for Internal {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
editor: cosmic_text::Editor::new(cosmic_text::Buffer::new_empty(
|
||||
cosmic_text::Metrics {
|
||||
font_size: 1.0,
|
||||
line_height: 1.0,
|
||||
},
|
||||
)),
|
||||
font: Font::default(),
|
||||
bounds: Size::ZERO,
|
||||
min_bounds: Size::ZERO,
|
||||
version: text::Version::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Debug for Internal {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
f.debug_struct("Internal")
|
||||
.field("font", &self.font)
|
||||
.field("bounds", &self.bounds)
|
||||
.field("min_bounds", &self.min_bounds)
|
||||
.finish()
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Weak {
|
||||
raw: sync::Weak<Internal>,
|
||||
pub bounds: Size,
|
||||
}
|
||||
|
||||
impl Weak {
|
||||
pub fn upgrade(&self) -> Option<Editor> {
|
||||
self.raw.upgrade().map(Some).map(Editor)
|
||||
}
|
||||
}
|
||||
|
||||
impl PartialEq for Weak {
|
||||
fn eq(&self, other: &Self) -> bool {
|
||||
match (self.raw.upgrade(), other.raw.upgrade()) {
|
||||
(Some(p1), Some(p2)) => p1 == p2,
|
||||
_ => false,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -32,6 +32,7 @@ use crate::core::text::{self, Text};
|
|||
use crate::core::{
|
||||
Background, Color, Font, Pixels, Point, Rectangle, Size, Vector,
|
||||
};
|
||||
use crate::graphics::text::Editor;
|
||||
use crate::graphics::text::Paragraph;
|
||||
use crate::graphics::Mesh;
|
||||
|
||||
|
|
@ -159,6 +160,7 @@ impl<T> core::Renderer for Renderer<T> {
|
|||
impl<T> text::Renderer for Renderer<T> {
|
||||
type Font = Font;
|
||||
type Paragraph = Paragraph;
|
||||
type Editor = Editor;
|
||||
|
||||
const ICON_FONT: Font = iced_tiny_skia::Renderer::<T>::ICON_FONT;
|
||||
const CHECKMARK_ICON: char = iced_tiny_skia::Renderer::<T>::CHECKMARK_ICON;
|
||||
|
|
@ -179,14 +181,27 @@ impl<T> text::Renderer for Renderer<T> {
|
|||
|
||||
fn fill_paragraph(
|
||||
&mut self,
|
||||
text: &Self::Paragraph,
|
||||
paragraph: &Self::Paragraph,
|
||||
position: Point,
|
||||
color: Color,
|
||||
) {
|
||||
delegate!(
|
||||
self,
|
||||
renderer,
|
||||
renderer.fill_paragraph(text, position, color)
|
||||
renderer.fill_paragraph(paragraph, position, color)
|
||||
);
|
||||
}
|
||||
|
||||
fn fill_editor(
|
||||
&mut self,
|
||||
editor: &Self::Editor,
|
||||
position: Point,
|
||||
color: Color,
|
||||
) {
|
||||
delegate!(
|
||||
self,
|
||||
renderer,
|
||||
renderer.fill_editor(editor, position, color)
|
||||
);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -35,6 +35,7 @@ pub mod rule;
|
|||
pub mod scrollable;
|
||||
pub mod slider;
|
||||
pub mod svg;
|
||||
pub mod text_editor;
|
||||
pub mod text_input;
|
||||
pub mod theme;
|
||||
pub mod toggler;
|
||||
|
|
|
|||
47
style/src/text_editor.rs
Normal file
47
style/src/text_editor.rs
Normal file
|
|
@ -0,0 +1,47 @@
|
|||
//! Change the appearance of a text editor.
|
||||
use iced_core::{Background, BorderRadius, Color};
|
||||
|
||||
/// The appearance of a text input.
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
pub struct Appearance {
|
||||
/// The [`Background`] of the text input.
|
||||
pub background: Background,
|
||||
/// The border radius of the text input.
|
||||
pub border_radius: BorderRadius,
|
||||
/// The border width of the text input.
|
||||
pub border_width: f32,
|
||||
/// The border [`Color`] of the text input.
|
||||
pub border_color: Color,
|
||||
}
|
||||
|
||||
/// A set of rules that dictate the style of a text input.
|
||||
pub trait StyleSheet {
|
||||
/// The supported style of the [`StyleSheet`].
|
||||
type Style: Default;
|
||||
|
||||
/// Produces the style of an active text input.
|
||||
fn active(&self, style: &Self::Style) -> Appearance;
|
||||
|
||||
/// Produces the style of a focused text input.
|
||||
fn focused(&self, style: &Self::Style) -> Appearance;
|
||||
|
||||
/// Produces the [`Color`] of the placeholder of a text input.
|
||||
fn placeholder_color(&self, style: &Self::Style) -> Color;
|
||||
|
||||
/// Produces the [`Color`] of the value of a text input.
|
||||
fn value_color(&self, style: &Self::Style) -> Color;
|
||||
|
||||
/// Produces the [`Color`] of the value of a disabled text input.
|
||||
fn disabled_color(&self, style: &Self::Style) -> Color;
|
||||
|
||||
/// Produces the [`Color`] of the selection of a text input.
|
||||
fn selection_color(&self, style: &Self::Style) -> Color;
|
||||
|
||||
/// Produces the style of an hovered text input.
|
||||
fn hovered(&self, style: &Self::Style) -> Appearance {
|
||||
self.focused(style)
|
||||
}
|
||||
|
||||
/// Produces the style of a disabled text input.
|
||||
fn disabled(&self, style: &Self::Style) -> Appearance;
|
||||
}
|
||||
|
|
@ -17,6 +17,7 @@ use crate::rule;
|
|||
use crate::scrollable;
|
||||
use crate::slider;
|
||||
use crate::svg;
|
||||
use crate::text_editor;
|
||||
use crate::text_input;
|
||||
use crate::toggler;
|
||||
|
||||
|
|
@ -1174,3 +1175,115 @@ impl text_input::StyleSheet for Theme {
|
|||
self.placeholder_color(style)
|
||||
}
|
||||
}
|
||||
|
||||
/// The style of a text input.
|
||||
#[derive(Default)]
|
||||
pub enum TextEditor {
|
||||
/// The default style.
|
||||
#[default]
|
||||
Default,
|
||||
/// A custom style.
|
||||
Custom(Box<dyn text_editor::StyleSheet<Style = Theme>>),
|
||||
}
|
||||
|
||||
impl text_editor::StyleSheet for Theme {
|
||||
type Style = TextEditor;
|
||||
|
||||
fn active(&self, style: &Self::Style) -> text_editor::Appearance {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.active(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
text_editor::Appearance {
|
||||
background: palette.background.base.color.into(),
|
||||
border_radius: 2.0.into(),
|
||||
border_width: 1.0,
|
||||
border_color: palette.background.strong.color,
|
||||
}
|
||||
}
|
||||
|
||||
fn hovered(&self, style: &Self::Style) -> text_editor::Appearance {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.hovered(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
text_editor::Appearance {
|
||||
background: palette.background.base.color.into(),
|
||||
border_radius: 2.0.into(),
|
||||
border_width: 1.0,
|
||||
border_color: palette.background.base.text,
|
||||
}
|
||||
}
|
||||
|
||||
fn focused(&self, style: &Self::Style) -> text_editor::Appearance {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.focused(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
text_editor::Appearance {
|
||||
background: palette.background.base.color.into(),
|
||||
border_radius: 2.0.into(),
|
||||
border_width: 1.0,
|
||||
border_color: palette.primary.strong.color,
|
||||
}
|
||||
}
|
||||
|
||||
fn placeholder_color(&self, style: &Self::Style) -> Color {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.placeholder_color(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
palette.background.strong.color
|
||||
}
|
||||
|
||||
fn value_color(&self, style: &Self::Style) -> Color {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.value_color(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
palette.background.base.text
|
||||
}
|
||||
|
||||
fn selection_color(&self, style: &Self::Style) -> Color {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.selection_color(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
palette.primary.weak.color
|
||||
}
|
||||
|
||||
fn disabled(&self, style: &Self::Style) -> text_editor::Appearance {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.disabled(self);
|
||||
}
|
||||
|
||||
let palette = self.extended_palette();
|
||||
|
||||
text_editor::Appearance {
|
||||
background: palette.background.weak.color.into(),
|
||||
border_radius: 2.0.into(),
|
||||
border_width: 1.0,
|
||||
border_color: palette.background.strong.color,
|
||||
}
|
||||
}
|
||||
|
||||
fn disabled_color(&self, style: &Self::Style) -> Color {
|
||||
if let TextEditor::Custom(custom) = style {
|
||||
return custom.disabled_color(self);
|
||||
}
|
||||
|
||||
self.placeholder_color(style)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -383,6 +383,31 @@ impl Backend {
|
|||
clip_mask,
|
||||
);
|
||||
}
|
||||
Primitive::Editor {
|
||||
editor,
|
||||
position,
|
||||
color,
|
||||
} => {
|
||||
let physical_bounds =
|
||||
(Rectangle::new(*position, editor.bounds) + translation)
|
||||
* scale_factor;
|
||||
|
||||
if !clip_bounds.intersects(&physical_bounds) {
|
||||
return;
|
||||
}
|
||||
|
||||
let clip_mask = (!physical_bounds.is_within(&clip_bounds))
|
||||
.then_some(clip_mask as &_);
|
||||
|
||||
self.text_pipeline.draw_editor(
|
||||
editor,
|
||||
*position + translation,
|
||||
*color,
|
||||
scale_factor,
|
||||
pixels,
|
||||
clip_mask,
|
||||
);
|
||||
}
|
||||
Primitive::Text {
|
||||
content,
|
||||
bounds,
|
||||
|
|
|
|||
|
|
@ -2,6 +2,7 @@ use crate::core::alignment;
|
|||
use crate::core::text::{LineHeight, Shaping};
|
||||
use crate::core::{Color, Font, Pixels, Point, Rectangle};
|
||||
use crate::graphics::text::cache::{self, Cache};
|
||||
use crate::graphics::text::editor;
|
||||
use crate::graphics::text::font_system;
|
||||
use crate::graphics::text::paragraph;
|
||||
|
||||
|
|
@ -64,6 +65,37 @@ impl Pipeline {
|
|||
);
|
||||
}
|
||||
|
||||
pub fn draw_editor(
|
||||
&mut self,
|
||||
editor: &editor::Weak,
|
||||
position: Point,
|
||||
color: Color,
|
||||
scale_factor: f32,
|
||||
pixels: &mut tiny_skia::PixmapMut<'_>,
|
||||
clip_mask: Option<&tiny_skia::Mask>,
|
||||
) {
|
||||
use crate::core::text::Editor as _;
|
||||
|
||||
let Some(editor) = editor.upgrade() else {
|
||||
return;
|
||||
};
|
||||
|
||||
let mut font_system = font_system().write().expect("Write font system");
|
||||
|
||||
draw(
|
||||
font_system.raw(),
|
||||
&mut self.glyph_cache,
|
||||
editor.buffer(),
|
||||
Rectangle::new(position, editor.min_bounds()),
|
||||
color,
|
||||
alignment::Horizontal::Left,
|
||||
alignment::Vertical::Top,
|
||||
scale_factor,
|
||||
pixels,
|
||||
clip_mask,
|
||||
);
|
||||
}
|
||||
|
||||
pub fn draw_cached(
|
||||
&mut self,
|
||||
content: &str,
|
||||
|
|
|
|||
|
|
@ -120,12 +120,25 @@ impl<'a> Layer<'a> {
|
|||
} => {
|
||||
let layer = &mut layers[current_layer];
|
||||
|
||||
layer.text.push(Text::Managed {
|
||||
layer.text.push(Text::Paragraph {
|
||||
paragraph: paragraph.clone(),
|
||||
position: *position + translation,
|
||||
color: *color,
|
||||
});
|
||||
}
|
||||
Primitive::Editor {
|
||||
editor,
|
||||
position,
|
||||
color,
|
||||
} => {
|
||||
let layer = &mut layers[current_layer];
|
||||
|
||||
layer.text.push(Text::Editor {
|
||||
editor: editor.clone(),
|
||||
position: *position + translation,
|
||||
color: *color,
|
||||
});
|
||||
}
|
||||
Primitive::Text {
|
||||
content,
|
||||
bounds,
|
||||
|
|
|
|||
|
|
@ -1,16 +1,22 @@
|
|||
use crate::core::alignment;
|
||||
use crate::core::text;
|
||||
use crate::core::{Color, Font, Pixels, Point, Rectangle};
|
||||
use crate::graphics::text::editor;
|
||||
use crate::graphics::text::paragraph;
|
||||
|
||||
/// A paragraph of text.
|
||||
#[derive(Debug, Clone)]
|
||||
pub enum Text<'a> {
|
||||
Managed {
|
||||
Paragraph {
|
||||
paragraph: paragraph::Weak,
|
||||
position: Point,
|
||||
color: Color,
|
||||
},
|
||||
Editor {
|
||||
editor: editor::Weak,
|
||||
position: Point,
|
||||
color: Color,
|
||||
},
|
||||
Cached(Cached<'a>),
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ use crate::core::alignment;
|
|||
use crate::core::{Rectangle, Size};
|
||||
use crate::graphics::color;
|
||||
use crate::graphics::text::cache::{self, Cache};
|
||||
use crate::graphics::text::{font_system, Paragraph};
|
||||
use crate::graphics::text::{font_system, Editor, Paragraph};
|
||||
use crate::layer::Text;
|
||||
|
||||
use std::borrow::Cow;
|
||||
|
|
@ -74,15 +74,19 @@ impl Pipeline {
|
|||
|
||||
enum Allocation {
|
||||
Paragraph(Paragraph),
|
||||
Editor(Editor),
|
||||
Cache(cache::KeyHash),
|
||||
}
|
||||
|
||||
let allocations: Vec<_> = sections
|
||||
.iter()
|
||||
.map(|section| match section {
|
||||
Text::Managed { paragraph, .. } => {
|
||||
Text::Paragraph { paragraph, .. } => {
|
||||
paragraph.upgrade().map(Allocation::Paragraph)
|
||||
}
|
||||
Text::Editor { editor, .. } => {
|
||||
editor.upgrade().map(Allocation::Editor)
|
||||
}
|
||||
Text::Cached(text) => {
|
||||
let (key, _) = cache.allocate(
|
||||
font_system,
|
||||
|
|
@ -117,7 +121,7 @@ impl Pipeline {
|
|||
vertical_alignment,
|
||||
color,
|
||||
) = match section {
|
||||
Text::Managed {
|
||||
Text::Paragraph {
|
||||
position, color, ..
|
||||
} => {
|
||||
use crate::core::text::Paragraph as _;
|
||||
|
|
@ -135,6 +139,24 @@ impl Pipeline {
|
|||
*color,
|
||||
)
|
||||
}
|
||||
Text::Editor {
|
||||
position, color, ..
|
||||
} => {
|
||||
use crate::core::text::Editor as _;
|
||||
|
||||
let Some(Allocation::Editor(editor)) = allocation
|
||||
else {
|
||||
return None;
|
||||
};
|
||||
|
||||
(
|
||||
editor.buffer(),
|
||||
Rectangle::new(*position, editor.min_bounds()),
|
||||
alignment::Horizontal::Left,
|
||||
alignment::Vertical::Top,
|
||||
*color,
|
||||
)
|
||||
}
|
||||
Text::Cached(text) => {
|
||||
let Some(Allocation::Cache(key)) = allocation else {
|
||||
return None;
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@ use crate::runtime::Command;
|
|||
use crate::scrollable::{self, Scrollable};
|
||||
use crate::slider::{self, Slider};
|
||||
use crate::text::{self, Text};
|
||||
use crate::text_editor::{self, TextEditor};
|
||||
use crate::text_input::{self, TextInput};
|
||||
use crate::toggler::{self, Toggler};
|
||||
use crate::tooltip::{self, Tooltip};
|
||||
|
|
@ -206,6 +207,20 @@ where
|
|||
TextInput::new(placeholder, value)
|
||||
}
|
||||
|
||||
/// Creates a new [`TextEditor`].
|
||||
///
|
||||
/// [`TextEditor`]: crate::TextEditor
|
||||
pub fn text_editor<'a, Message, Renderer>(
|
||||
content: &'a text_editor::Content<Renderer>,
|
||||
) -> TextEditor<'a, Message, Renderer>
|
||||
where
|
||||
Message: Clone,
|
||||
Renderer: core::text::Renderer,
|
||||
Renderer::Theme: text_editor::StyleSheet,
|
||||
{
|
||||
TextEditor::new(content)
|
||||
}
|
||||
|
||||
/// Creates a new [`Slider`].
|
||||
///
|
||||
/// [`Slider`]: crate::Slider
|
||||
|
|
|
|||
|
|
@ -4,8 +4,8 @@
|
|||
)]
|
||||
#![forbid(unsafe_code, rust_2018_idioms)]
|
||||
#![deny(
|
||||
missing_debug_implementations,
|
||||
missing_docs,
|
||||
// missing_debug_implementations,
|
||||
// missing_docs,
|
||||
unused_results,
|
||||
clippy::extra_unused_lifetimes,
|
||||
clippy::from_over_into,
|
||||
|
|
@ -41,6 +41,7 @@ pub mod scrollable;
|
|||
pub mod slider;
|
||||
pub mod space;
|
||||
pub mod text;
|
||||
pub mod text_editor;
|
||||
pub mod text_input;
|
||||
pub mod toggler;
|
||||
pub mod tooltip;
|
||||
|
|
|
|||
457
widget/src/text_editor.rs
Normal file
457
widget/src/text_editor.rs
Normal file
|
|
@ -0,0 +1,457 @@
|
|||
use crate::core::event::{self, Event};
|
||||
use crate::core::keyboard;
|
||||
use crate::core::layout::{self, Layout};
|
||||
use crate::core::mouse;
|
||||
use crate::core::renderer;
|
||||
use crate::core::text::editor::{Cursor, Editor as _};
|
||||
use crate::core::text::{self, LineHeight};
|
||||
use crate::core::widget::{self, Widget};
|
||||
use crate::core::{
|
||||
Clipboard, Color, Element, Length, Padding, Pixels, Point, Rectangle,
|
||||
Shell, Vector,
|
||||
};
|
||||
|
||||
use std::cell::RefCell;
|
||||
|
||||
pub use crate::style::text_editor::{Appearance, StyleSheet};
|
||||
pub use text::editor::Action;
|
||||
|
||||
pub struct TextEditor<'a, Message, Renderer = crate::Renderer>
|
||||
where
|
||||
Renderer: text::Renderer,
|
||||
Renderer::Theme: StyleSheet,
|
||||
{
|
||||
content: &'a Content<Renderer>,
|
||||
font: Option<Renderer::Font>,
|
||||
text_size: Option<Pixels>,
|
||||
line_height: LineHeight,
|
||||
width: Length,
|
||||
height: Length,
|
||||
padding: Padding,
|
||||
style: <Renderer::Theme as StyleSheet>::Style,
|
||||
on_edit: Option<Box<dyn Fn(Action) -> Message + 'a>>,
|
||||
}
|
||||
|
||||
impl<'a, Message, Renderer> TextEditor<'a, Message, Renderer>
|
||||
where
|
||||
Renderer: text::Renderer,
|
||||
Renderer::Theme: StyleSheet,
|
||||
{
|
||||
pub fn new(content: &'a Content<Renderer>) -> Self {
|
||||
Self {
|
||||
content,
|
||||
font: None,
|
||||
text_size: None,
|
||||
line_height: LineHeight::default(),
|
||||
width: Length::Fill,
|
||||
height: Length::Fill,
|
||||
padding: Padding::new(5.0),
|
||||
style: Default::default(),
|
||||
on_edit: None,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn on_edit(mut self, on_edit: impl Fn(Action) -> Message + 'a) -> Self {
|
||||
self.on_edit = Some(Box::new(on_edit));
|
||||
self
|
||||
}
|
||||
|
||||
pub fn font(mut self, font: impl Into<Renderer::Font>) -> Self {
|
||||
self.font = Some(font.into());
|
||||
self
|
||||
}
|
||||
|
||||
pub fn padding(mut self, padding: impl Into<Padding>) -> Self {
|
||||
self.padding = padding.into();
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Content<R = crate::Renderer>(RefCell<Internal<R>>)
|
||||
where
|
||||
R: text::Renderer;
|
||||
|
||||
struct Internal<R>
|
||||
where
|
||||
R: text::Renderer,
|
||||
{
|
||||
editor: R::Editor,
|
||||
is_dirty: bool,
|
||||
}
|
||||
|
||||
impl<R> Content<R>
|
||||
where
|
||||
R: text::Renderer,
|
||||
{
|
||||
pub fn new() -> Self {
|
||||
Self::with("")
|
||||
}
|
||||
|
||||
pub fn with(text: &str) -> Self {
|
||||
Self(RefCell::new(Internal {
|
||||
editor: R::Editor::with_text(text),
|
||||
is_dirty: true,
|
||||
}))
|
||||
}
|
||||
|
||||
pub fn edit(&mut self, action: Action) {
|
||||
let internal = self.0.get_mut();
|
||||
|
||||
internal.editor.perform(action);
|
||||
internal.is_dirty = true;
|
||||
}
|
||||
}
|
||||
|
||||
impl<Renderer> Default for Content<Renderer>
|
||||
where
|
||||
Renderer: text::Renderer,
|
||||
{
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
}
|
||||
|
||||
struct State {
|
||||
is_focused: bool,
|
||||
is_dragging: bool,
|
||||
last_click: Option<mouse::Click>,
|
||||
}
|
||||
|
||||
impl<'a, Message, Renderer> Widget<Message, Renderer>
|
||||
for TextEditor<'a, Message, Renderer>
|
||||
where
|
||||
Renderer: text::Renderer,
|
||||
Renderer::Theme: StyleSheet,
|
||||
{
|
||||
fn tag(&self) -> widget::tree::Tag {
|
||||
widget::tree::Tag::of::<State>()
|
||||
}
|
||||
|
||||
fn state(&self) -> widget::tree::State {
|
||||
widget::tree::State::new(State {
|
||||
is_focused: false,
|
||||
is_dragging: false,
|
||||
last_click: None,
|
||||
})
|
||||
}
|
||||
|
||||
fn width(&self) -> Length {
|
||||
self.width
|
||||
}
|
||||
|
||||
fn height(&self) -> Length {
|
||||
self.height
|
||||
}
|
||||
|
||||
fn layout(
|
||||
&self,
|
||||
_tree: &mut widget::Tree,
|
||||
renderer: &Renderer,
|
||||
limits: &layout::Limits,
|
||||
) -> iced_renderer::core::layout::Node {
|
||||
let mut internal = self.content.0.borrow_mut();
|
||||
|
||||
internal.editor.update(
|
||||
limits.pad(self.padding).max(),
|
||||
self.font.unwrap_or_else(|| renderer.default_font()),
|
||||
self.text_size.unwrap_or_else(|| renderer.default_size()),
|
||||
self.line_height,
|
||||
);
|
||||
|
||||
layout::Node::new(limits.max())
|
||||
}
|
||||
|
||||
fn on_event(
|
||||
&mut self,
|
||||
tree: &mut widget::Tree,
|
||||
event: Event,
|
||||
layout: Layout<'_>,
|
||||
cursor: mouse::Cursor,
|
||||
_renderer: &Renderer,
|
||||
clipboard: &mut dyn Clipboard,
|
||||
shell: &mut Shell<'_, Message>,
|
||||
_viewport: &Rectangle,
|
||||
) -> event::Status {
|
||||
let Some(on_edit) = self.on_edit.as_ref() else {
|
||||
return event::Status::Ignored;
|
||||
};
|
||||
|
||||
let state = tree.state.downcast_mut::<State>();
|
||||
|
||||
let Some(update) = Update::from_event(
|
||||
event,
|
||||
state,
|
||||
layout.bounds(),
|
||||
self.padding,
|
||||
cursor,
|
||||
) else {
|
||||
return event::Status::Ignored;
|
||||
};
|
||||
|
||||
match update {
|
||||
Update::Focus { click, action } => {
|
||||
state.is_focused = true;
|
||||
state.last_click = Some(click);
|
||||
shell.publish(on_edit(action));
|
||||
}
|
||||
Update::Unfocus => {
|
||||
state.is_focused = false;
|
||||
state.is_dragging = false;
|
||||
}
|
||||
Update::Click { click, action } => {
|
||||
state.last_click = Some(click);
|
||||
state.is_dragging = true;
|
||||
shell.publish(on_edit(action));
|
||||
}
|
||||
Update::StopDragging => {
|
||||
state.is_dragging = false;
|
||||
}
|
||||
Update::Edit(action) => {
|
||||
shell.publish(on_edit(action));
|
||||
}
|
||||
Update::Copy => {}
|
||||
Update::Paste => if let Some(_contents) = clipboard.read() {},
|
||||
}
|
||||
|
||||
event::Status::Captured
|
||||
}
|
||||
|
||||
fn draw(
|
||||
&self,
|
||||
tree: &widget::Tree,
|
||||
renderer: &mut Renderer,
|
||||
theme: &<Renderer as renderer::Renderer>::Theme,
|
||||
style: &renderer::Style,
|
||||
layout: Layout<'_>,
|
||||
cursor: mouse::Cursor,
|
||||
_viewport: &Rectangle,
|
||||
) {
|
||||
let bounds = layout.bounds();
|
||||
|
||||
let internal = self.content.0.borrow();
|
||||
let state = tree.state.downcast_ref::<State>();
|
||||
|
||||
let is_disabled = self.on_edit.is_none();
|
||||
let is_mouse_over = cursor.is_over(bounds);
|
||||
|
||||
let appearance = if is_disabled {
|
||||
theme.disabled(&self.style)
|
||||
} else if state.is_focused {
|
||||
theme.focused(&self.style)
|
||||
} else if is_mouse_over {
|
||||
theme.hovered(&self.style)
|
||||
} else {
|
||||
theme.active(&self.style)
|
||||
};
|
||||
|
||||
renderer.fill_quad(
|
||||
renderer::Quad {
|
||||
bounds,
|
||||
border_radius: appearance.border_radius,
|
||||
border_width: appearance.border_width,
|
||||
border_color: appearance.border_color,
|
||||
},
|
||||
appearance.background,
|
||||
);
|
||||
|
||||
renderer.fill_editor(
|
||||
&internal.editor,
|
||||
bounds.position()
|
||||
+ Vector::new(self.padding.left, self.padding.top),
|
||||
style.text_color,
|
||||
);
|
||||
|
||||
if state.is_focused {
|
||||
match internal.editor.cursor() {
|
||||
Cursor::Caret(position) => {
|
||||
renderer.fill_quad(
|
||||
renderer::Quad {
|
||||
bounds: Rectangle {
|
||||
x: position.x + bounds.x + self.padding.left,
|
||||
y: position.y + bounds.y + self.padding.top,
|
||||
width: 1.0,
|
||||
height: self
|
||||
.line_height
|
||||
.to_absolute(self.text_size.unwrap_or_else(
|
||||
|| renderer.default_size(),
|
||||
))
|
||||
.into(),
|
||||
},
|
||||
border_radius: 0.0.into(),
|
||||
border_width: 0.0,
|
||||
border_color: Color::TRANSPARENT,
|
||||
},
|
||||
theme.value_color(&self.style),
|
||||
);
|
||||
}
|
||||
Cursor::Selection(ranges) => {
|
||||
for range in ranges {
|
||||
renderer.fill_quad(
|
||||
renderer::Quad {
|
||||
bounds: range + Vector::new(bounds.x, bounds.y),
|
||||
border_radius: 0.0.into(),
|
||||
border_width: 0.0,
|
||||
border_color: Color::TRANSPARENT,
|
||||
},
|
||||
theme.selection_color(&self.style),
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn mouse_interaction(
|
||||
&self,
|
||||
_state: &widget::Tree,
|
||||
layout: Layout<'_>,
|
||||
cursor: mouse::Cursor,
|
||||
_viewport: &Rectangle,
|
||||
_renderer: &Renderer,
|
||||
) -> mouse::Interaction {
|
||||
let is_disabled = self.on_edit.is_none();
|
||||
|
||||
if cursor.is_over(layout.bounds()) {
|
||||
if is_disabled {
|
||||
mouse::Interaction::NotAllowed
|
||||
} else {
|
||||
mouse::Interaction::Text
|
||||
}
|
||||
} else {
|
||||
mouse::Interaction::default()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, Message, Renderer> From<TextEditor<'a, Message, Renderer>>
|
||||
for Element<'a, Message, Renderer>
|
||||
where
|
||||
Message: 'a,
|
||||
Renderer: text::Renderer,
|
||||
Renderer::Theme: StyleSheet,
|
||||
{
|
||||
fn from(text_editor: TextEditor<'a, Message, Renderer>) -> Self {
|
||||
Self::new(text_editor)
|
||||
}
|
||||
}
|
||||
|
||||
enum Update {
|
||||
Focus { click: mouse::Click, action: Action },
|
||||
Unfocus,
|
||||
Click { click: mouse::Click, action: Action },
|
||||
StopDragging,
|
||||
Edit(Action),
|
||||
Copy,
|
||||
Paste,
|
||||
}
|
||||
|
||||
impl Update {
|
||||
fn from_event(
|
||||
event: Event,
|
||||
state: &State,
|
||||
bounds: Rectangle,
|
||||
padding: Padding,
|
||||
cursor: mouse::Cursor,
|
||||
) -> Option<Self> {
|
||||
match event {
|
||||
Event::Mouse(event) => match event {
|
||||
mouse::Event::ButtonPressed(mouse::Button::Left) => {
|
||||
if let Some(cursor_position) = cursor.position_in(bounds) {
|
||||
let cursor_position = cursor_position
|
||||
- Vector::new(padding.top, padding.left);
|
||||
|
||||
if state.is_focused {
|
||||
let click = mouse::Click::new(
|
||||
cursor_position,
|
||||
state.last_click,
|
||||
);
|
||||
|
||||
let action = match click.kind() {
|
||||
mouse::click::Kind::Single => {
|
||||
Action::Click(cursor_position)
|
||||
}
|
||||
mouse::click::Kind::Double => {
|
||||
Action::SelectWord
|
||||
}
|
||||
mouse::click::Kind::Triple => {
|
||||
Action::SelectLine
|
||||
}
|
||||
};
|
||||
|
||||
Some(Update::Click { click, action })
|
||||
} else {
|
||||
Some(Update::Focus {
|
||||
click: mouse::Click::new(cursor_position, None),
|
||||
action: Action::Click(cursor_position),
|
||||
})
|
||||
}
|
||||
} else if state.is_focused {
|
||||
Some(Update::Unfocus)
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
mouse::Event::ButtonReleased(mouse::Button::Left) => {
|
||||
Some(Update::StopDragging)
|
||||
}
|
||||
mouse::Event::CursorMoved { .. } if state.is_dragging => {
|
||||
let cursor_position = cursor.position_in(bounds)?
|
||||
- Vector::new(padding.top, padding.left);
|
||||
|
||||
Some(Self::Edit(Action::Drag(cursor_position)))
|
||||
}
|
||||
_ => None,
|
||||
},
|
||||
Event::Keyboard(event) => match event {
|
||||
keyboard::Event::KeyPressed {
|
||||
key_code,
|
||||
modifiers,
|
||||
} if state.is_focused => match key_code {
|
||||
keyboard::KeyCode::Left => {
|
||||
if platform::is_jump_modifier_pressed(modifiers) {
|
||||
Some(Self::Edit(Action::MoveLeftWord))
|
||||
} else {
|
||||
Some(Self::Edit(Action::MoveLeft))
|
||||
}
|
||||
}
|
||||
keyboard::KeyCode::Right => {
|
||||
if platform::is_jump_modifier_pressed(modifiers) {
|
||||
Some(Self::Edit(Action::MoveRightWord))
|
||||
} else {
|
||||
Some(Self::Edit(Action::MoveRight))
|
||||
}
|
||||
}
|
||||
keyboard::KeyCode::Up => Some(Self::Edit(Action::MoveUp)),
|
||||
keyboard::KeyCode::Down => {
|
||||
Some(Self::Edit(Action::MoveDown))
|
||||
}
|
||||
keyboard::KeyCode::Backspace => {
|
||||
Some(Self::Edit(Action::Backspace))
|
||||
}
|
||||
keyboard::KeyCode::Delete => {
|
||||
Some(Self::Edit(Action::Delete))
|
||||
}
|
||||
keyboard::KeyCode::Escape => Some(Self::Unfocus),
|
||||
_ => None,
|
||||
},
|
||||
keyboard::Event::CharacterReceived(c) if state.is_focused => {
|
||||
Some(Self::Edit(Action::Insert(c)))
|
||||
}
|
||||
_ => None,
|
||||
},
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
mod platform {
|
||||
use crate::core::keyboard;
|
||||
|
||||
pub fn is_jump_modifier_pressed(modifiers: keyboard::Modifiers) -> bool {
|
||||
if cfg!(target_os = "macos") {
|
||||
modifiers.alt()
|
||||
} else {
|
||||
modifiers.control()
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue