djkato/egui
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add support for click and double-click events.

Browse source
This commit is contained in:
Nolan Darilek 2021-05-12 08:35:36 -05:00
parent b3ced6106b
commit 8269cca95d
2 changed files with 23 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
egui/src/data/output.rs
View file

@ -40,6 +40,12 @@ impl Output {
// only describe last event:
if let Some(event) = self.events.iter().rev().next() {
match event {
OutputEvent::Clicked(widget_info) => {
return widget_info.description();
}
OutputEvent::DoubleClicked(widget_info) => {
return widget_info.description();
}
OutputEvent::FocusGained(widget_info) => {
return widget_info.description();
}
@ -204,6 +210,10 @@ impl Default for CursorIcon {
/// In particular, these events may be useful for accessability, i.e. for screen readers.
#[derive(Clone, PartialEq)]
pub enum OutputEvent {
// A widget was clicked.
Clicked(WidgetInfo),
// A widget was double-clicked.
DoubleClicked(WidgetInfo),
/// A widget gained keyboard focus (by tab key).
FocusGained(WidgetInfo),
}
@ -211,6 +221,8 @@ pub enum OutputEvent {
impl std::fmt::Debug for OutputEvent {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::Clicked(wi) => write!(f, "Clicked({:?})", wi),
Self::DoubleClicked(wi) => write!(f, "DoubleClicked({:?})", wi),
Self::FocusGained(wi) => write!(f, "FocusGained({:?})", wi),
}
}

15
egui/src/response.rs
View file

@ -428,10 +428,17 @@ impl Response {
///
/// Call after interacting and potential calls to [`Self::mark_changed`].
pub fn widget_info(&self, make_info: impl Fn() -> crate::WidgetInfo) {
if self.gained_focus() {
use crate::output::OutputEvent;
let widget_info = make_info();
let event = OutputEvent::FocusGained(widget_info);
use crate::output::OutputEvent;
let event = if self.clicked() {
Some(OutputEvent::Clicked(make_info()))
} else if self.double_clicked() {
Some(OutputEvent::DoubleClicked(make_info()))
} else if self.gained_focus() {
Some(OutputEvent::FocusGained(make_info()))
} else {
None
};
if let Some(event) = event {
self.ctx.output().events.push(event);
}
}