grim/src/gui/views/title_panel.rs

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// Copyright 2023 The Grim Developers
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use egui::style::Margin;
use egui_extras::{Size, StripBuilder};
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use crate::gui::Colors;
use crate::gui::views::View;
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pub struct TitlePanelAction {
pub(crate) icon: Box<&'static str>,
pub(crate) on_click: Box<dyn Fn()>,
}
impl TitlePanelAction {
pub fn new(icon: &'static str, on_click: fn()) -> Option<Self> {
Option::from(Self { icon: Box::new(icon), on_click: Box::new(on_click) })
}
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}
pub struct TitlePanel {
title: String,
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}
impl TitlePanel {
const PANEL_HEIGHT: f32 = 52.0;
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pub fn new(title: String) -> Self {
Self { title: title.to_uppercase() }
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}
pub fn ui(&self, l: Option<TitlePanelAction>, r: Option<TitlePanelAction>, ui: &mut egui::Ui) {
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egui::TopBottomPanel::top("title_panel")
.resizable(false)
.frame(egui::Frame {
fill: Colors::YELLOW,
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inner_margin: Margin::same(0.0),
outer_margin: Margin::same(0.0),
stroke: egui::Stroke::NONE,
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..Default::default()
})
.show_inside(ui, |ui| {
StripBuilder::new(ui)
.size(Size::exact(Self::PANEL_HEIGHT))
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.vertical(|mut strip| {
strip.strip(|builder| {
builder
.size(Size::exact(Self::PANEL_HEIGHT))
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.size(Size::remainder())
.size(Size::exact(Self::PANEL_HEIGHT))
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.horizontal(|mut strip| {
strip.cell(|ui| {
self.draw_action(ui, l);
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});
strip.cell(|ui| {
self.draw_title(ui);
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});
strip.cell(|ui| {
self.draw_action(ui, r);
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});
});
});
});
});
}
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fn draw_action(&self, ui: &mut egui::Ui, action: Option<TitlePanelAction>) {
if action.is_some() {
let action = action.unwrap();
ui.centered_and_justified(|ui| {
View::title_button(ui, &action.icon, || {
(action.on_click)();
});
});
}
}
fn draw_title(&self, ui: &mut egui::Ui) {
let Self { title } = self;
ui.centered_and_justified(|ui| {
View::ellipsize_text(ui, title.into(), 20.0, Colors::TITLE);
});
}
}