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Clean up some of the new context menus

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Follow-up to https://github.com/emilk/egui/pull/543

* Add entry to CHANGELOG.md
* Add entry to contributors in README.md
* Improve documentation
* Simplify demo
This commit is contained in:
Emil Ernerfeldt
2021-10-26 20:16:46 +02:00
parent 46fb9ff09b
commit 41f77ba7d7
7 changed files with 106 additions and 88 deletions
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169
egui_demo_lib/src/apps/demo/context_menu.rs
View File

@@ -17,7 +17,6 @@ fn sigmoid(x: f64) -> f64 {
#[derive(Clone, PartialEq)]
#[cfg_attr(feature = "persistence", derive(serde::Deserialize, serde::Serialize))]
pub struct ContextMenus {
title: String,
plot: Plot,
show_axes: [bool; 2],
allow_drag: bool,
@@ -28,6 +27,87 @@ pub struct ContextMenus {
height: f32,
}
impl Default for ContextMenus {
fn default() -> Self {
Self {
plot: Plot::Sin,
show_axes: [true, true],
allow_drag: true,
allow_zoom: true,
center_x_axis: false,
center_y_axis: false,
width: 400.0,
height: 200.0,
}
}
}
impl super::Demo for ContextMenus {
fn name(&self) -> &'static str {
"☰ Context Menus"
}
fn show(&mut self, ctx: &egui::CtxRef, open: &mut bool) {
use super::View;
egui::Window::new(self.name())
.vscroll(false)
.resizable(false)
.open(open)
.show(ctx, |ui| self.ui(ui));
}
}
impl super::View for ContextMenus {
fn ui(&mut self, ui: &mut egui::Ui) {
ui.horizontal(|ui| {
ui.menu_button("Click for menu", Self::nested_menus);
ui.button("Right-click for menu")
.context_menu(Self::nested_menus);
});
ui.separator();
ui.label("Right-click plot to edit it!");
ui.horizontal(|ui| {
ui.add(self.example_plot()).context_menu(|ui| {
ui.menu_button("Plot", |ui| {
if ui.radio_value(&mut self.plot, Plot::Sin, "Sin").clicked()
|| ui
.radio_value(&mut self.plot, Plot::Bell, "Gaussian")
.clicked()
|| ui
.radio_value(&mut self.plot, Plot::Sigmoid, "Sigmoid")
.clicked()
{
ui.close_menu();
}
});
egui::Grid::new("button_grid").show(ui, |ui| {
ui.add(
egui::DragValue::new(&mut self.width)
.speed(1.0)
.prefix("Width:"),
);
ui.add(
egui::DragValue::new(&mut self.height)
.speed(1.0)
.prefix("Height:"),
);
ui.end_row();
ui.checkbox(&mut self.show_axes[0], "x-Axis");
ui.checkbox(&mut self.show_axes[1], "y-Axis");
ui.end_row();
if ui.checkbox(&mut self.allow_drag, "Drag").changed()
|| ui.checkbox(&mut self.allow_zoom, "Zoom").changed()
{
ui.close_menu();
}
});
});
});
}
}
impl ContextMenus {
fn example_plot(&self) -> egui::plot::Plot {
use egui::plot::{Line, Value, Values};
@@ -52,6 +132,7 @@ impl ContextMenus {
.height(self.height)
.data_aspect(1.0)
}
fn nested_menus(ui: &mut egui::Ui) {
if ui.button("Open...").clicked() {
ui.close_menu();
@@ -86,89 +167,3 @@ impl ContextMenus {
let _ = ui.button("Very long text for this item");
}
}
const DEFAULT_TITLE: &str = "☰ Context Menus";
impl Default for ContextMenus {
fn default() -> Self {
Self {
title: DEFAULT_TITLE.to_owned(),
plot: Plot::Sin,
show_axes: [true, true],
allow_drag: true,
allow_zoom: true,
center_x_axis: false,
center_y_axis: false,
width: 400.0,
height: 200.0,
}
}
}
impl super::Demo for ContextMenus {
fn name(&self) -> &'static str {
DEFAULT_TITLE
}
fn show(&mut self, ctx: &egui::CtxRef, open: &mut bool) {
let Self { title, .. } = self.clone();
use super::View;
let window = egui::Window::new(title)
.id(egui::Id::new("demo_context_menus")) // required since we change the title
.vscroll(false)
.open(open);
window.show(ctx, |ui| self.ui(ui));
}
}
impl super::View for ContextMenus {
fn ui(&mut self, ui: &mut egui::Ui) {
ui.horizontal(|ui| ui.text_edit_singleline(&mut self.title));
ui.horizontal(|ui| {
ui.add(self.example_plot())
.on_hover_text("Right click for options")
.context_menu(|ui| {
ui.menu_button("Plot", |ui| {
if ui.radio_value(&mut self.plot, Plot::Sin, "Sin").clicked()
|| ui
.radio_value(&mut self.plot, Plot::Bell, "Gaussian")
.clicked()
|| ui
.radio_value(&mut self.plot, Plot::Sigmoid, "Sigmoid")
.clicked()
{
ui.close_menu();
}
});
egui::Grid::new("button_grid").show(ui, |ui| {
ui.add(
egui::DragValue::new(&mut self.width)
.speed(1.0)
.prefix("Width:"),
);
ui.add(
egui::DragValue::new(&mut self.height)
.speed(1.0)
.prefix("Height:"),
);
ui.end_row();
ui.checkbox(&mut self.show_axes[0], "x-Axis");
ui.checkbox(&mut self.show_axes[1], "y-Axis");
ui.end_row();
if ui.checkbox(&mut self.allow_drag, "Drag").changed()
|| ui.checkbox(&mut self.allow_zoom, "Zoom").changed()
{
ui.close_menu();
}
});
});
});
ui.label("Right-click plot to edit it!");
ui.separator();
ui.horizontal(|ui| {
ui.menu_button("Click for menu", Self::nested_menus);
ui.button("Right-click for menu")
.context_menu(Self::nested_menus);
});
}
}