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 eframe::epaint::{FontId, Stroke};
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use eframe::epaint::text::{LayoutJob, TextFormat, TextWrapping};
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use egui::style::Margin;
use egui_extras::{Size, StripBuilder};
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use crate::gui::colors::{COLOR_DARK, COLOR_YELLOW};
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use crate::gui::screens::Navigator;
use crate::gui::views::View;
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pub struct TitlePanelAction {
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pub(crate) icon: Box<str>,
pub(crate) on_click: Box<dyn Fn()>,
}
impl TitlePanelAction {
pub fn new(icon: Box<str>, on_click: fn()) -> Option<Self> {
Option::from(Self { icon, on_click: Box::new(on_click) })
}
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}
#[derive(Default)]
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pub struct TitlePanelActions {
left: Option<TitlePanelAction>,
right: Option<TitlePanelAction>
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}
pub struct TitlePanel {
title: String,
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actions: TitlePanelActions,
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}
impl TitlePanel {
pub fn new(title: String) -> Self {
Self {
title,
actions: TitlePanelActions::default()
}
}
pub fn left_action(mut self, action: Option<TitlePanelAction>) -> Self {
self.actions.left = action;
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self
}
pub fn right_action(mut self, action: Option<TitlePanelAction>) -> Self {
self.actions.right = action;
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self
}
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pub fn ui(&mut self, ui: &mut egui::Ui) {
let Self { actions, title } = self;
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egui::TopBottomPanel::top("title_panel")
.resizable(false)
.frame(egui::Frame {
fill: COLOR_YELLOW,
inner_margin: Margin::same(0.0),
outer_margin: Margin::same(0.0),
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stroke: Stroke::NONE,
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..Default::default()
})
.show_inside(ui, |ui| {
StripBuilder::new(ui)
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.size(Size::exact(52.0))
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.vertical(|mut strip| {
strip.strip(|builder| {
builder
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.size(Size::exact(52.0))
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.size(Size::remainder())
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.size(Size::exact(52.0))
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.horizontal(|mut strip| {
strip.cell(|ui| {
show_action(ui, actions.left.as_ref());
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});
strip.strip(|builder| {
builder
.size(Size::remainder())
.vertical(|mut strip| {
strip.cell(|ui| {
show_title(title, ui);
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});
});
});
strip.cell(|ui| {
show_action(ui, actions.right.as_ref());
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});
});
});
});
});
}
}
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fn show_action(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 show_title(title: &String, ui: &mut egui::Ui) {
ui.centered_and_justified(|ui| {
let mut job = LayoutJob::single_section(title.to_uppercase(), TextFormat {
font_id: FontId::proportional(20.0),
color: COLOR_DARK,
.. Default::default()
});
job.wrap = TextWrapping {
max_rows: 1,
break_anywhere: false,
overflow_character: Option::from(''),
..Default::default()
};
ui.label(job);
});
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}