Add text::Wrapping support

Co-authored-by: Neeraj Jaiswal <neerajj85@gmail.com>

graphics/src/text.rs

@@ -11,7 +11,7 @@ pub use cosmic_text;
 
 use crate::core::alignment;
 use crate::core::font::{self, Font};
-use crate::core::text::Shaping;
+use crate::core::text::{Shaping, Wrapping};
 use crate::core::{Color, Pixels, Point, Rectangle, Size, Transformation};
 
 use once_cell::sync::OnceCell;
@@ -306,6 +306,16 @@ pub fn to_shaping(shaping: Shaping) -> cosmic_text::Shaping {
     }
 }
 
+/// Converts some [`Wrapping`] strategy to a [`cosmic_text::Wrap`] strategy.
+pub fn to_wrap(wrapping: Wrapping) -> cosmic_text::Wrap {
+    match wrapping {
+        Wrapping::None => cosmic_text::Wrap::None,
+        Wrapping::Word => cosmic_text::Wrap::Word,
+        Wrapping::Glyph => cosmic_text::Wrap::Glyph,
+        Wrapping::WordOrGlyph => cosmic_text::Wrap::WordOrGlyph,
+    }
+}
+
 /// Converts some [`Color`] to a [`cosmic_text::Color`].
 pub fn to_color(color: Color) -> cosmic_text::Color {
     let [r, g, b, a] = color.into_rgba8();

graphics/src/text/editor.rs

@@ -3,7 +3,7 @@ use crate::core::text::editor::{
     self, Action, Cursor, Direction, Edit, Motion,
 };
 use crate::core::text::highlighter::{self, Highlighter};
-use crate::core::text::LineHeight;
+use crate::core::text::{LineHeight, Wrapping};
 use crate::core::{Font, Pixels, Point, Rectangle, Size};
 use crate::text;
 
@@ -437,6 +437,7 @@ impl editor::Editor for Editor {
         new_font: Font,
         new_size: Pixels,
         new_line_height: LineHeight,
+        new_wrapping: Wrapping,
         new_highlighter: &mut impl Highlighter,
     ) {
         let editor =
@@ -448,13 +449,12 @@ impl editor::Editor for Editor {
         let mut font_system =
             text::font_system().write().expect("Write font system");
 
+        let buffer = buffer_mut_from_editor(&mut internal.editor);
+
         if font_system.version() != internal.version {
             log::trace!("Updating `FontSystem` of `Editor`...");
 
-            for line in buffer_mut_from_editor(&mut internal.editor)
-                .lines
-                .iter_mut()
-            {
+            for line in buffer.lines.iter_mut() {
                 line.reset();
             }
 
@@ -465,10 +465,7 @@ impl editor::Editor for Editor {
         if new_font != internal.font {
             log::trace!("Updating font of `Editor`...");
 
-            for line in buffer_mut_from_editor(&mut internal.editor)
-                .lines
-                .iter_mut()
-            {
+            for line in buffer.lines.iter_mut() {
                 let _ = line.set_attrs_list(cosmic_text::AttrsList::new(
                     text::to_attributes(new_font),
                 ));
@@ -478,7 +475,7 @@ impl editor::Editor for Editor {
             internal.topmost_line_changed = Some(0);
         }
 
-        let metrics = buffer_from_editor(&internal.editor).metrics();
+        let metrics = buffer.metrics();
         let new_line_height = new_line_height.to_absolute(new_size);
 
         if new_size.0 != metrics.font_size
@@ -486,12 +483,20 @@ impl editor::Editor for Editor {
         {
             log::trace!("Updating `Metrics` of `Editor`...");
 
-            buffer_mut_from_editor(&mut internal.editor).set_metrics(
+            buffer.set_metrics(
                 font_system.raw(),
                 cosmic_text::Metrics::new(new_size.0, new_line_height.0),
             );
         }
 
+        let new_wrap = text::to_wrap(new_wrapping);
+
+        if new_wrap != buffer.wrap() {
+            log::trace!("Updating `Wrap` strategy of `Editor`...");
+
+            buffer.set_wrap(font_system.raw(), new_wrap);
+        }
+
         if new_bounds != internal.bounds {
             log::trace!("Updating size of `Editor`...");
 

graphics/src/text/paragraph.rs

@@ -1,7 +1,7 @@
 //! Draw paragraphs.
 use crate::core;
 use crate::core::alignment;
-use crate::core::text::{Hit, Shaping, Span, Text};
+use crate::core::text::{Hit, Shaping, Span, Text, Wrapping};
 use crate::core::{Font, Point, Rectangle, Size};
 use crate::text;
 
@@ -17,6 +17,7 @@ struct Internal {
     buffer: cosmic_text::Buffer,
     font: Font,
     shaping: Shaping,
+    wrapping: Wrapping,
     horizontal_alignment: alignment::Horizontal,
     vertical_alignment: alignment::Vertical,
     bounds: Size,
@@ -94,6 +95,7 @@ impl core::text::Paragraph for Paragraph {
             horizontal_alignment: text.horizontal_alignment,
             vertical_alignment: text.vertical_alignment,
             shaping: text.shaping,
+            wrapping: text.wrapping,
             bounds: text.bounds,
             min_bounds,
             version: font_system.version(),
@@ -160,6 +162,7 @@ impl core::text::Paragraph for Paragraph {
             horizontal_alignment: text.horizontal_alignment,
             vertical_alignment: text.vertical_alignment,
             shaping: text.shaping,
+            wrapping: text.wrapping,
             bounds: text.bounds,
             min_bounds,
             version: font_system.version(),
@@ -192,6 +195,7 @@ impl core::text::Paragraph for Paragraph {
             || metrics.line_height != text.line_height.to_absolute(text.size).0
             || paragraph.font != text.font
             || paragraph.shaping != text.shaping
+            || paragraph.wrapping != text.wrapping
             || paragraph.horizontal_alignment != text.horizontal_alignment
             || paragraph.vertical_alignment != text.vertical_alignment
         {
@@ -387,6 +391,7 @@ impl Default for Internal {
             }),
             font: Font::default(),
             shaping: Shaping::default(),
+            wrapping: Wrapping::default(),
             horizontal_alignment: alignment::Horizontal::Left,
             vertical_alignment: alignment::Vertical::Top,
             bounds: Size::ZERO,