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[button] add sense so you can make drag buttons

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This commit is contained in:
Emil Ernerfeldt 2020-06-10 16:23:15 +02:00
parent 2162ffff42
commit a90dda6162
1 changed files with 11 additions and 1 deletions
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12
egui/src/widgets.rs
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@ -197,6 +197,7 @@ pub struct Button {
text_style: TextStyle,
/// None means default for interact
fill: Option<Color>,
sense: Sense,
}
impl Button {
@ -206,6 +207,7 @@ impl Button {
text_color: None,
text_style: TextStyle::Button,
fill: None,
sense: Sense::click(),
}
}
@ -223,6 +225,13 @@ impl Button {
self.fill = fill;
self
}
/// By default, buttons senses clicks.
/// Change this to a drag-button with `Sense::drag()`.
pub fn sense(mut self, sense: Sense) -> Self {
self.sense = sense;
self
}
}
impl Widget for Button {
@ -232,6 +241,7 @@ impl Widget for Button {
text_color,
text_style,
fill,
sense,
} = self;
let id = ui.make_position_id();
@ -241,7 +251,7 @@ impl Widget for Button {
let mut size = galley.size + 2.0 * padding;
size.y = size.y.max(ui.style().clickable_diameter);
let rect = ui.allocate_space(size);
let interact = ui.interact(rect, id, Sense::click());
let interact = ui.interact(rect, id, sense);
let text_cursor = interact.rect.left_center() + vec2(padding.x, -0.5 * galley.size.y);
let bg_fill = fill.or(ui.style().interact(&interact).bg_fill);
ui.add_paint_cmd(PaintCmd::Rect {