diff options
Diffstat (limited to 'wgpu/src/renderer/text.rs')
-rw-r--r-- | wgpu/src/renderer/text.rs | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/wgpu/src/renderer/text.rs b/wgpu/src/renderer/text.rs deleted file mode 100644 index 82f75f09..00000000 --- a/wgpu/src/renderer/text.rs +++ /dev/null @@ -1,83 +0,0 @@ -use crate::{Primitive, Renderer}; -use iced_native::{text, Color, Layout, MouseCursor, Node, Style, Text}; - -use wgpu_glyph::{GlyphCruncher, Section}; - -use std::cell::RefCell; -use std::f32; - -impl text::Renderer for Renderer { - fn node(&self, text: &Text) -> Node { - let glyph_brush = self.glyph_brush.clone(); - let content = text.content.clone(); - - // TODO: Investigate why stretch tries to measure this MANY times - // with every ancestor's bounds. - // Bug? Using the library wrong? I should probably open an issue on - // the stretch repository. - // I noticed that the first measure is the one that matters in - // practice. Here, we use a RefCell to store the cached measurement. - let measure = RefCell::new(None); - let size = text.size.map(f32::from).unwrap_or(20.0); - - let style = Style::default().width(text.width); - - iced_native::Node::with_measure(style, move |bounds| { - let mut measure = measure.borrow_mut(); - - if measure.is_none() { - let bounds = ( - match bounds.width { - iced_native::Number::Undefined => f32::INFINITY, - iced_native::Number::Defined(w) => w, - }, - match bounds.height { - iced_native::Number::Undefined => f32::INFINITY, - iced_native::Number::Defined(h) => h, - }, - ); - - let text = Section { - text: &content, - scale: wgpu_glyph::Scale { x: size, y: size }, - bounds, - ..Default::default() - }; - - let (width, height) = if let Some(bounds) = - glyph_brush.borrow_mut().glyph_bounds(&text) - { - (bounds.width().ceil(), bounds.height().ceil()) - } else { - (0.0, 0.0) - }; - - let size = iced_native::Size { width, height }; - - // If the text has no width boundary we avoid caching as the - // layout engine may just be measuring text in a row. - if bounds.0 == f32::INFINITY { - return size; - } else { - *measure = Some(size); - } - } - - measure.unwrap() - }) - } - - fn draw(&mut self, text: &Text, layout: Layout<'_>) -> Self::Output { - ( - Primitive::Text { - content: text.content.clone(), - size: f32::from(text.size.unwrap_or(20)), - bounds: layout.bounds(), - color: text.color.unwrap_or(Color::BLACK), - horizontal_alignment: text.horizontal_alignment, - vertical_alignment: text.vertical_alignment, - }, - MouseCursor::OutOfBounds, - ) - } -} |