Merge pull request #1830 from iced-rs/advanced-text

Advanced text

1 files changed, 62 insertions, 27 deletions

diff --git a/native/src/widget/checkbox.rs b/widget/src/checkbox.rs
index ad05a8e7..7d43bb4a 100644
--- a/native/src/widget/checkbox.rs
+++ b/widget/src/checkbox.rs
@@ -1,16 +1,17 @@
 //! Show toggle controls using checkboxes.
-use crate::alignment;
-use crate::event::{self, Event};
-use crate::layout;
-use crate::mouse;
-use crate::renderer;
-use crate::text;
-use crate::touch;
-use crate::widget::{self, Row, Text, Tree};
-use crate::{
+use crate::core::alignment;
+use crate::core::event::{self, Event};
+use crate::core::layout;
+use crate::core::mouse;
+use crate::core::renderer;
+use crate::core::text;
+use crate::core::touch;
+use crate::core::widget::Tree;
+use crate::core::{
     Alignment, Clipboard, Element, Layout, Length, Pixels, Point, Rectangle,
     Shell, Widget,
 };
+use crate::{Row, Text};
 
 pub use iced_style::checkbox::{Appearance, StyleSheet};
 
@@ -18,8 +19,9 @@ pub use iced_style::checkbox::{Appearance, StyleSheet};
 ///
 /// # Example
 ///
-/// ```
-/// # type Checkbox<'a, Message> = iced_native::widget::Checkbox<'a, Message, iced_native::renderer::Null>;
+/// ```no_run
+/// # type Checkbox<'a, Message> =
+/// #     iced_widget::Checkbox<'a, Message, iced_widget::renderer::Renderer<iced_widget::style::Theme>>;
 /// #
 /// pub enum Message {
 ///     CheckboxToggled(bool),
@@ -32,10 +34,10 @@ pub use iced_style::checkbox::{Appearance, StyleSheet};
 ///
 /// ![Checkbox drawn by `iced_wgpu`](https://github.com/iced-rs/iced/blob/7760618fb112074bc40b148944521f312152012a/docs/images/checkbox.png?raw=true)
 #[allow(missing_debug_implementations)]
-pub struct Checkbox<'a, Message, Renderer>
+pub struct Checkbox<'a, Message, Renderer = crate::Renderer>
 where
     Renderer: text::Renderer,
-    Renderer::Theme: StyleSheet + widget::text::StyleSheet,
+    Renderer::Theme: StyleSheet + crate::text::StyleSheet,
 {
     is_checked: bool,
     on_toggle: Box<dyn Fn(bool) -> Message + 'a>,
@@ -44,7 +46,9 @@ where
     size: f32,
     spacing: f32,
     text_size: Option<f32>,
-    font: Renderer::Font,
+    text_line_height: text::LineHeight,
+    text_shaping: text::Shaping,
+    font: Option<Renderer::Font>,
     icon: Icon<Renderer::Font>,
     style: <Renderer::Theme as StyleSheet>::Style,
 }
@@ -52,7 +56,7 @@ where
 impl<'a, Message, Renderer> Checkbox<'a, Message, Renderer>
 where
     Renderer: text::Renderer,
-    Renderer::Theme: StyleSheet + widget::text::StyleSheet,
+    Renderer::Theme: StyleSheet + crate::text::StyleSheet,
 {
     /// The default size of a [`Checkbox`].
     const DEFAULT_SIZE: f32 = 20.0;
@@ -80,11 +84,15 @@ where
             size: Self::DEFAULT_SIZE,
             spacing: Self::DEFAULT_SPACING,
             text_size: None,
-            font: Renderer::Font::default(),
+            text_line_height: text::LineHeight::default(),
+            text_shaping: text::Shaping::Basic,
+            font: None,
             icon: Icon {
                 font: Renderer::ICON_FONT,
                 code_point: Renderer::CHECKMARK_ICON,
                 size: None,
+                line_height: text::LineHeight::default(),
+                shaping: text::Shaping::Basic,
             },
             style: Default::default(),
         }
@@ -114,11 +122,26 @@ where
         self
     }
 
+    /// Sets the text [`LineHeight`] of the [`Checkbox`].
+    pub fn text_line_height(
+        mut self,
+        line_height: impl Into<text::LineHeight>,
+    ) -> Self {
+        self.text_line_height = line_height.into();
+        self
+    }
+
+    /// Sets the [`text::Shaping`] strategy of the [`Checkbox`].
+    pub fn text_shaping(mut self, shaping: text::Shaping) -> Self {
+        self.text_shaping = shaping;
+        self
+    }
+
     /// Sets the [`Font`] of the text of the [`Checkbox`].
     ///
     /// [`Font`]: crate::text::Renderer::Font
-    pub fn font(mut self, font: Renderer::Font) -> Self {
-        self.font = font;
+    pub fn font(mut self, font: impl Into<Renderer::Font>) -> Self {
+        self.font = Some(font.into());
         self
     }
 
@@ -142,7 +165,7 @@ impl<'a, Message, Renderer> Widget<Message, Renderer>
     for Checkbox<'a, Message, Renderer>
 where
     Renderer: text::Renderer,
-    Renderer::Theme: StyleSheet + widget::text::StyleSheet,
+    Renderer::Theme: StyleSheet + crate::text::StyleSheet,
 {
     fn width(&self) -> Length {
         self.width
@@ -164,12 +187,14 @@ where
             .push(Row::new().width(self.size).height(self.size))
             .push(
                 Text::new(&self.label)
-                    .font(self.font.clone())
+                    .font(self.font.unwrap_or_else(|| renderer.default_font()))
                     .width(self.width)
                     .size(
                         self.text_size
                             .unwrap_or_else(|| renderer.default_size()),
-                    ),
+                    )
+                    .line_height(self.text_line_height)
+                    .shaping(self.text_shaping),
             )
             .layout(renderer, limits)
     }
@@ -255,14 +280,17 @@ where
                 font,
                 code_point,
                 size,
+                line_height,
+                shaping,
             } = &self.icon;
-            let size = size.map(f32::from).unwrap_or(bounds.height * 0.7);
+            let size = size.unwrap_or(bounds.height * 0.7);
 
             if self.is_checked {
                 renderer.fill_text(text::Text {
                     content: &code_point.to_string(),
-                    font: font.clone(),
+                    font: *font,
                     size,
+                    line_height: *line_height,
                     bounds: Rectangle {
                         x: bounds.center_x(),
                         y: bounds.center_y(),
@@ -271,6 +299,7 @@ where
                     color: custom_style.icon_color,
                     horizontal_alignment: alignment::Horizontal::Center,
                     vertical_alignment: alignment::Vertical::Center,
+                    shaping: *shaping,
                 });
             }
         }
@@ -278,18 +307,20 @@ where
         {
             let label_layout = children.next().unwrap();
 
-            widget::text::draw(
+            crate::text::draw(
                 renderer,
                 style,
                 label_layout,
                 &self.label,
                 self.text_size,
-                self.font.clone(),
-                widget::text::Appearance {
+                self.text_line_height,
+                self.font,
+                crate::text::Appearance {
                     color: custom_style.text_color,
                 },
                 alignment::Horizontal::Left,
                 alignment::Vertical::Center,
+                self.text_shaping,
             );
         }
     }
@@ -300,7 +331,7 @@ impl<'a, Message, Renderer> From<Checkbox<'a, Message, Renderer>>
 where
     Message: 'a,
     Renderer: 'a + text::Renderer,
-    Renderer::Theme: StyleSheet + widget::text::StyleSheet,
+    Renderer::Theme: StyleSheet + crate::text::StyleSheet,
 {
     fn from(
         checkbox: Checkbox<'a, Message, Renderer>,
@@ -318,4 +349,8 @@ pub struct Icon<Font> {
     pub code_point: char,
     /// Font size of the content.
     pub size: Option<f32>,
+    /// The line height of the icon.
+    pub line_height: text::LineHeight,
+    /// The shaping strategy of the icon.
+    pub shaping: text::Shaping,
 }