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Place TextInput cursor position on click

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This commit is contained in:
Héctor Ramón Jiménez 2019-12-05 03:09:39 +01:00
parent e92ea48e88
commit 14fb7e13fb
3 changed files with 100 additions and 19 deletions
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37
wgpu/src/renderer/widget/text_input.rs
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@ -12,6 +12,24 @@ impl text_input::Renderer for Renderer {
20
}
fn measure_value(&self, value: &str, size: u16) -> f32 {
let (mut width, _) = self.text_pipeline.measure(
value,
f32::from(size),
Font::Default,
Size::INFINITY,
);
let spaces_at_the_end = value.len() - value.trim_end().len();
if spaces_at_the_end > 0 {
let space_width = self.text_pipeline.space_width(size as f32);
width += spaces_at_the_end as f32 * space_width;
}
width
}
fn draw(
&mut self,
bounds: Rectangle,
@ -48,7 +66,6 @@ impl text_input::Renderer for Renderer {
border_radius: 4,
};
let size = f32::from(size);
let text = value.to_string();
let text_value = Primitive::Text {
@ -68,7 +85,7 @@ impl text_input::Renderer for Renderer {
width: f32::INFINITY,
..text_bounds
},
size,
size: f32::from(size),
horizontal_alignment: HorizontalAlignment::Left,
vertical_alignment: VerticalAlignment::Center,
};
@ -77,20 +94,8 @@ impl text_input::Renderer for Renderer {
let text_before_cursor =
value.until(state.cursor_position(value)).to_string();
let (mut text_value_width, _) = self.text_pipeline.measure(
&text_before_cursor,
size,
Font::Default,
Size::new(f32::INFINITY, text_bounds.height),
);
let spaces_at_the_end =
text_before_cursor.len() - text_before_cursor.trim_end().len();
if spaces_at_the_end > 0 {
let space_width = self.text_pipeline.space_width(size);
text_value_width += spaces_at_the_end as f32 * space_width;
}
let text_value_width =
self.measure_value(&text_before_cursor, size);
let cursor = Primitive::Quad {
bounds: Rectangle {