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Show text cursor in TextInput

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This commit is contained in:
Héctor Ramón Jiménez 2019-10-30 05:20:41 +01:00
parent 1505d8f941
commit 43f348dc4a
1 changed files with 40 additions and 2 deletions
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42
wgpu/src/renderer/text_input.rs
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@ -54,6 +54,8 @@ impl text_input::Renderer for Renderer {
border_radius: 5,
};
let size = f32::from(text_input.size.unwrap_or(self.default_size()));
let value = Primitive::Clip {
bounds: text_bounds,
offset: 0,
@ -82,7 +84,7 @@ impl text_input::Renderer for Renderer {
width: f32::INFINITY,
..text_bounds
},
size: f32::from(text_input.size.unwrap_or(self.default_size())),
size,
horizontal_alignment: HorizontalAlignment::Left,
vertical_alignment: VerticalAlignment::Center,
}),
@ -90,7 +92,43 @@ impl text_input::Renderer for Renderer {
(
Primitive::Group {
primitives: vec![border, input, value],
primitives: if text_input.state.is_focused {
use wgpu_glyph::{GlyphCruncher, Scale, Section};
let mut text_value_width = self
.glyph_brush
.borrow_mut()
.glyph_bounds(Section {
text: &text_input.value,
bounds: (f32::INFINITY, text_bounds.height),
scale: Scale { x: size, y: size },
..Default::default()
})
.map(|bounds| bounds.width().round())
.unwrap_or(0.0);
let spaces_at_the_end = text_input.value.len()
- text_input.value.trim_end().len();
if spaces_at_the_end > 0 {
text_value_width += spaces_at_the_end as f32 * 5.0;
}
let cursor = Primitive::Quad {
bounds: Rectangle {
x: text_bounds.x + text_value_width,
y: text_bounds.y,
width: 1.0,
height: text_bounds.height,
},
background: Background::Color(Color::BLACK),
border_radius: 0,
};
vec![border, input, value, cursor]
} else {
vec![border, input, value]
},
},
if is_mouse_over {
MouseCursor::Text