651 lines
No EOL
25 KiB
Rust
651 lines
No EOL
25 KiB
Rust
// Copyright 2023 The Grim Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::ops::Add;
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use std::sync::atomic::{AtomicI32, Ordering};
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use std::sync::{Arc, RwLock};
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use lazy_static::lazy_static;
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use egui::{Align, Button, CursorIcon, Layout, PointerState, Rect, Response, RichText, Sense, Spinner, TextBuffer, TextStyle, Widget};
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use egui::epaint::{Color32, FontId, RectShape, Rounding, Stroke};
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use egui::epaint::text::TextWrapping;
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use egui::os::OperatingSystem;
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use egui::text::{LayoutJob, TextFormat};
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use egui::text_edit::TextEditState;
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use crate::gui::Colors;
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use crate::gui::icons::{CHECK_SQUARE, CLIPBOARD_TEXT, COPY, EYE, EYE_SLASH, SQUARE};
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use crate::gui::platform::PlatformCallbacks;
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use crate::gui::views::types::TextEditOptions;
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pub struct View;
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impl View {
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/// Default stroke around views.
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pub const DEFAULT_STROKE: Stroke = Stroke { width: 1.0, color: Colors::STROKE };
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/// Stroke for items.
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pub const ITEM_STROKE: Stroke = Stroke { width: 1.0, color: Colors::ITEM_STROKE };
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/// Stroke for hovered items and buttons.
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pub const HOVER_STROKE: Stroke = Stroke { width: 1.0, color: Colors::ITEM_HOVER };
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/// Draw content with maximum width value.
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pub fn max_width_ui(ui: &mut egui::Ui,
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max_width: f32,
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add_content: impl FnOnce(&mut egui::Ui)) {
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// Setup content width.
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let mut width = ui.available_width();
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if width == 0.0 {
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return;
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}
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let mut rect = ui.available_rect_before_wrap();
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width = f32::min(width, max_width);
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rect.set_width(width);
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// Draw content.
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ui.allocate_ui(rect.size(), |ui| {
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(add_content)(ui);
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});
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}
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/// Get width and height of app window.
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pub fn window_size(ui: &mut egui::Ui) -> (f32, f32) {
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ui.ctx().input(|i| {
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return match i.viewport().inner_rect {
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None => {
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let size = i.viewport().monitor_size.unwrap();
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(size.x, size.y)
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}
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Some(rect) => {
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(rect.width(), rect.height())
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}
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};
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})
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}
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/// Callback on Enter key press event.
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pub fn on_enter_key(ui: &mut egui::Ui, cb: impl FnOnce()) {
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if ui.ctx().input(|i| i.key_pressed(egui::Key::Enter)) {
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(cb)();
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}
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}
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/// Calculate margin for far left view based on display insets (cutouts).
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pub fn far_left_inset_margin(ui: &mut egui::Ui) -> f32 {
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if ui.available_rect_before_wrap().min.x == 0.0 {
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Self::get_left_inset()
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} else {
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0.0
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}
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}
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/// Calculate margin for far left view based on display insets (cutouts).
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pub fn far_right_inset_margin(ui: &mut egui::Ui) -> f32 {
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let container_width = ui.available_rect_before_wrap().max.x as i32;
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let window_size = Self::window_size(ui);
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let display_width = window_size.0 as i32;
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// Means end of the screen.
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if container_width == display_width {
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Self::get_right_inset()
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} else {
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0.0
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}
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}
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/// Cut long text with ﹍ character.
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fn ellipsize(text: String, size: f32, color: Color32) -> LayoutJob {
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let mut job = LayoutJob::single_section(text, TextFormat {
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font_id: FontId::proportional(size), color, ..Default::default()
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});
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job.wrap = TextWrapping {
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max_rows: 1,
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break_anywhere: true,
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overflow_character: Option::from('﹍'),
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..Default::default()
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};
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job
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}
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/// Show ellipsized text.
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pub fn ellipsize_text(ui: &mut egui::Ui, text: String, size: f32, color: Color32) {
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ui.label(Self::ellipsize(text, size, color));
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}
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/// Draw horizontally centered sub-title with space below.
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pub fn sub_title(ui: &mut egui::Ui, text: String) {
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ui.vertical_centered_justified(|ui| {
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ui.label(RichText::new(text.to_uppercase()).size(16.0).color(Colors::TEXT));
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});
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ui.add_space(4.0);
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}
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/// Temporary click optimization for touch screens, return `true` if it was clicked.
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fn touched(ui: &mut egui::Ui, resp: Response) -> bool {
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let drag_resp = resp.interact(Sense::click_and_drag());
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// Clear pointer event if dragging is out of button area
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if drag_resp.dragged() && !ui.rect_contains_pointer(drag_resp.rect) {
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ui.input_mut(|i| i.pointer = PointerState::default());
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}
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if drag_resp.drag_stopped() || drag_resp.clicked() || drag_resp.secondary_clicked() {
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return true;
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}
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false
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}
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/// Title button with transparent background fill color, contains only icon.
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pub fn title_button(ui: &mut egui::Ui, icon: &str, action: impl FnOnce()) {
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ui.scope(|ui| {
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// Disable stroke when inactive.
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ui.style_mut().visuals.widgets.inactive.bg_stroke = Stroke::NONE;
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// Setup stroke around title buttons on click.
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ui.style_mut().visuals.widgets.hovered.bg_stroke = Self::HOVER_STROKE;
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ui.style_mut().visuals.widgets.active.bg_stroke = Self::DEFAULT_STROKE;
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// Disable rounding.
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ui.style_mut().visuals.widgets.hovered.rounding = Rounding::default();
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ui.style_mut().visuals.widgets.active.rounding = Rounding::default();
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// Disable expansion.
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ui.style_mut().visuals.widgets.hovered.expansion = 0.0;
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ui.style_mut().visuals.widgets.active.expansion = 0.0;
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// Setup text.
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let wt = RichText::new(icon.to_string()).size(22.0).color(Colors::TITLE);
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// Draw button.
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let br = Button::new(wt)
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.fill(Colors::TRANSPARENT)
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.ui(ui)
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.on_hover_cursor(CursorIcon::PointingHand);
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br.surrender_focus();
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if Self::touched(ui, br) {
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(action)();
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}
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});
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}
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/// Tab button with white background fill color, contains only icon.
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pub fn tab_button(ui: &mut egui::Ui, icon: &str, active: bool, action: impl FnOnce()) {
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ui.scope(|ui| {
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let text_color = match active {
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true => Colors::TITLE,
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false => Colors::TEXT
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};
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let mut button = Button::new(RichText::new(icon).size(22.0).color(text_color));
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if !active {
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// Disable expansion on click/hover.
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ui.style_mut().visuals.widgets.hovered.expansion = 0.0;
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ui.style_mut().visuals.widgets.active.expansion = 0.0;
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// Setup fill colors.
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ui.visuals_mut().widgets.inactive.weak_bg_fill = Colors::WHITE;
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ui.visuals_mut().widgets.hovered.weak_bg_fill = Colors::BUTTON;
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ui.visuals_mut().widgets.active.weak_bg_fill = Colors::FILL;
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// Setup stroke colors.
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ui.visuals_mut().widgets.inactive.bg_stroke = Self::DEFAULT_STROKE;
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ui.visuals_mut().widgets.hovered.bg_stroke = Self::HOVER_STROKE;
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ui.visuals_mut().widgets.active.bg_stroke = Self::ITEM_STROKE;
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} else {
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button = button.fill(Colors::FILL).stroke(Stroke::NONE);
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}
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let br = button.ui(ui).on_hover_cursor(CursorIcon::PointingHand);
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br.surrender_focus();
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if Self::touched(ui, br) {
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(action)();
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}
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});
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}
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/// Draw [`Button`] with specified background fill and text color.
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fn button_resp(ui: &mut egui::Ui, text: String, text_color: Color32, bg: Color32) -> Response {
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let button_text = Self::ellipsize(text.to_uppercase(), 17.0, text_color);
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Button::new(button_text)
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.stroke(Self::DEFAULT_STROKE)
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.fill(bg)
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.ui(ui)
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.on_hover_cursor(CursorIcon::PointingHand)
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}
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/// Draw [`Button`] with specified background fill color and default text color.
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pub fn button(ui: &mut egui::Ui, text: String, fill: Color32, action: impl FnOnce()) {
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let br = Self::button_resp(ui, text, Colors::TEXT_BUTTON, fill);
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if Self::touched(ui, br) {
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(action)();
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}
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}
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/// Draw [`Button`] with specified background fill color and text color.
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pub fn colored_text_button(ui: &mut egui::Ui,
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text: String,
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text_color: Color32,
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fill: Color32,
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action: impl FnOnce()) {
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let br = Self::button_resp(ui, text, text_color, fill);
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if Self::touched(ui, br) {
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(action)();
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}
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}
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/// Draw [`Button`] with specified background fill color and ui at callback.
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pub fn button_ui(ui: &mut egui::Ui,
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text: String,
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fill: Color32,
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action: impl FnOnce(&mut egui::Ui)) {
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let button_text = Self::ellipsize(text.to_uppercase(), 17.0, Colors::TEXT_BUTTON);
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let br = Button::new(button_text)
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.stroke(Self::DEFAULT_STROKE)
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.fill(fill)
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.ui(ui)
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.on_hover_cursor(CursorIcon::PointingHand);
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if Self::touched(ui, br) {
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(action)(ui);
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}
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}
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/// Draw list item [`Button`] with provided rounding.
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pub fn item_button(ui: &mut egui::Ui,
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rounding: Rounding,
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text: &'static str,
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color: Option<Color32>,
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action: impl FnOnce()) {
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// Setup button size.
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let mut rect = ui.available_rect_before_wrap();
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rect.set_width(32.0);
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let button_size = rect.size();
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ui.scope(|ui| {
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// Disable expansion on click/hover.
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ui.style_mut().visuals.widgets.hovered.expansion = 0.0;
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ui.style_mut().visuals.widgets.active.expansion = 0.0;
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// Setup fill colors.
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ui.visuals_mut().widgets.inactive.weak_bg_fill = Colors::WHITE;
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ui.visuals_mut().widgets.hovered.weak_bg_fill = Colors::BUTTON;
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ui.visuals_mut().widgets.active.weak_bg_fill = Colors::FILL;
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// Setup stroke colors.
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ui.visuals_mut().widgets.inactive.bg_stroke = Self::DEFAULT_STROKE;
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ui.visuals_mut().widgets.hovered.bg_stroke = Self::HOVER_STROKE;
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ui.visuals_mut().widgets.active.bg_stroke = Self::ITEM_STROKE;
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// Setup button text color.
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let text_color = if let Some(c) = color { c } else { Colors::ITEM_BUTTON };
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// Show button.
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let br = Button::new(RichText::new(text).size(20.0).color(text_color))
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.rounding(rounding)
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.min_size(button_size)
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.ui(ui)
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.on_hover_cursor(CursorIcon::PointingHand);
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br.surrender_focus();
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if Self::touched(ui, br) {
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(action)();
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}
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});
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}
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/// Default height of [`egui::TextEdit`] view.
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const TEXT_EDIT_HEIGHT: f32 = 37.0;
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/// Draw [`egui::TextEdit`] widget.
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pub fn text_edit(ui: &mut egui::Ui,
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cb: &dyn PlatformCallbacks,
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value: &mut String,
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options: TextEditOptions) {
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let mut layout_rect = ui.available_rect_before_wrap();
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layout_rect.set_height(Self::TEXT_EDIT_HEIGHT);
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ui.allocate_ui_with_layout(layout_rect.size(), Layout::right_to_left(Align::Center), |ui| {
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// Setup password button.
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let mut show_pass = false;
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if options.password {
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// Set password button state value.
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let show_pass_id = egui::Id::new(options.id).with("_show_pass");
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show_pass = ui.data(|data| {
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data.get_temp(show_pass_id)
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}).unwrap_or(true);
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// Draw button to show/hide current password.
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let eye_icon = if show_pass { EYE } else { EYE_SLASH };
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let mut changed = false;
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View::button(ui, eye_icon.to_string(), Colors::WHITE, || {
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show_pass = !show_pass;
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changed = true;
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});
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// Save state if changed.
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if changed {
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ui.data_mut(|data| {
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data.insert_temp(show_pass_id, show_pass);
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});
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}
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ui.add_space(8.0);
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}
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// Setup copy button.
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if options.copy {
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let copy_icon = COPY.to_string();
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View::button(ui, copy_icon, Colors::WHITE, || {
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cb.copy_string_to_buffer(value.clone());
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});
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ui.add_space(8.0);
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}
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// Setup paste button.
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if options.paste {
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let paste_icon = CLIPBOARD_TEXT.to_string();
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View::button(ui, paste_icon, Colors::WHITE, || {
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*value = cb.get_string_from_buffer();
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});
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ui.add_space(8.0);
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}
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let layout_size = ui.available_size();
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ui.allocate_ui_with_layout(layout_size, Layout::left_to_right(Align::Center), |ui| {
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// Setup text edit size.
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let mut edit_rect = ui.available_rect_before_wrap();
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edit_rect.set_height(Self::TEXT_EDIT_HEIGHT);
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// Show text edit.
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let text_edit_resp = egui::TextEdit::singleline(value)
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.id(options.id)
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.margin(egui::Vec2::new(2.0, 0.0))
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.font(TextStyle::Heading)
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.min_size(edit_rect.size())
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.horizontal_align(if options.h_center { Align::Center } else { Align::Min })
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.vertical_align(Align::Center)
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.password(show_pass)
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.cursor_at_end(true)
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.ui(ui);
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// Show keyboard on click.
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if text_edit_resp.clicked() {
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cb.show_keyboard();
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}
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// Setup focus on input field.
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if options.focus {
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text_edit_resp.request_focus();
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cb.show_keyboard();
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}
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// Apply text from input on Android as temporary fix for egui.
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let os = OperatingSystem::from_target_os();
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if os == OperatingSystem::Android && text_edit_resp.has_focus() {
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let mut w_input = LAST_SOFT_KEYBOARD_INPUT.write().unwrap();
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if !w_input.is_empty() {
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let mut state = TextEditState::load(ui.ctx(), options.id).unwrap();
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match state.cursor.char_range() {
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None => {}
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Some(range) => {
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let mut r = range.clone();
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let mut index = r.primary.index;
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value.insert_text(w_input.as_str(), index);
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index = index + 1;
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if index == 0 {
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r.primary.index = value.len();
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r.secondary.index = r.primary.index;
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} else {
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r.primary.index = index;
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r.secondary.index = r.primary.index;
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}
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state.cursor.set_char_range(Some(r));
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TextEditState::store(state, ui.ctx(), options.id);
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}
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}
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}
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*w_input = "".to_string();
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ui.ctx().request_repaint();
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}
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});
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});
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}
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/// Calculate item background/button rounding based on item index.
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pub fn item_rounding(index: usize, len: usize, is_button: bool) -> Rounding {
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let corners = if is_button {
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if len == 1 {
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[false, true, true, false]
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} else if index == 0 {
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[false, true, false, false]
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} else if index == len - 1 {
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[false, false, true, false]
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} else {
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[false, false, false, false]
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}
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} else {
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if len == 1 {
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[true, true, true, true]
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} else if index == 0 {
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[true, true, false, false]
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} else if index == len - 1 {
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[false, false, true, true]
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} else {
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[false, false, false, false]
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}
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};
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Rounding {
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nw: if corners[0] { 8.0 } else { 0.0 },
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ne: if corners[1] { 8.0 } else { 0.0 },
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sw: if corners[3] { 8.0 } else { 0.0 },
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se: if corners[2] { 8.0 } else { 0.0 },
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}
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}
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/// Draw rounded box with some value and label in the middle,
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/// where is r = (top_left, top_right, bottom_left, bottom_right).
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/// | VALUE |
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/// | label |
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pub fn rounded_box(ui: &mut egui::Ui, value: String, label: String, r: [bool; 4]) {
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let rect = ui.available_rect_before_wrap();
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// Create background shape.
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let mut bg_shape = RectShape {
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rect,
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rounding: Rounding {
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nw: if r[0] { 8.0 } else { 0.0 },
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ne: if r[1] { 8.0 } else { 0.0 },
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sw: if r[2] { 8.0 } else { 0.0 },
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se: if r[3] { 8.0 } else { 0.0 },
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},
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fill: Colors::TRANSPARENT,
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stroke: Self::ITEM_STROKE,
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fill_texture_id: Default::default(),
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uv: Rect::ZERO
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};
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let bg_idx = ui.painter().add(bg_shape);
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// Draw box content.
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let content_resp = ui.allocate_ui_at_rect(rect, |ui| {
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ui.vertical_centered_justified(|ui| {
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ui.add_space(2.0);
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ui.scope(|ui| {
|
||
// Correct vertical spacing between items.
|
||
ui.style_mut().spacing.item_spacing.y = -3.0;
|
||
|
||
// Draw box value.
|
||
let mut job = LayoutJob::single_section(value, TextFormat {
|
||
font_id: FontId::proportional(17.0),
|
||
color: Colors::BLACK,
|
||
..Default::default()
|
||
});
|
||
job.wrap = TextWrapping {
|
||
max_rows: 1,
|
||
break_anywhere: true,
|
||
overflow_character: Option::from('﹍'),
|
||
..Default::default()
|
||
};
|
||
ui.label(job);
|
||
|
||
// Draw box label.
|
||
ui.label(RichText::new(label).color(Colors::GRAY).size(15.0));
|
||
});
|
||
|
||
ui.add_space(2.0);
|
||
});
|
||
}).response;
|
||
|
||
// Setup background shape to be painted behind box content.
|
||
bg_shape.rect = content_resp.rect;
|
||
ui.painter().set(bg_idx, bg_shape);
|
||
}
|
||
|
||
/// Draw content in the center of current layout with specified width and height.
|
||
pub fn center_content(ui: &mut egui::Ui, height: f32, content: impl FnOnce(&mut egui::Ui)) {
|
||
ui.vertical_centered(|ui| {
|
||
let mut rect = ui.available_rect_before_wrap();
|
||
let side_margin = 28.0;
|
||
rect.min += egui::emath::vec2(side_margin, ui.available_height() / 2.0 - height / 2.0);
|
||
rect.max -= egui::emath::vec2(side_margin, 0.0);
|
||
ui.allocate_ui_at_rect(rect, |ui| {
|
||
(content)(ui);
|
||
});
|
||
});
|
||
}
|
||
|
||
/// Draw big gold loading spinner.
|
||
pub fn big_loading_spinner(ui: &mut egui::Ui) {
|
||
Spinner::new().size(104.0).color(Colors::GOLD).ui(ui);
|
||
}
|
||
|
||
/// Draw small gold loading spinner.
|
||
pub fn small_loading_spinner(ui: &mut egui::Ui) {
|
||
Spinner::new().size(38.0).color(Colors::GOLD).ui(ui);
|
||
}
|
||
|
||
/// Draw the button that looks like checkbox with callback on check.
|
||
pub fn checkbox(ui: &mut egui::Ui, checked: bool, text: String, callback: impl FnOnce()) {
|
||
let (text_value, color) = match checked {
|
||
true => (format!("{} {}", CHECK_SQUARE, text), Colors::TEXT_BUTTON),
|
||
false => (format!("{} {}", SQUARE, text), Colors::CHECKBOX)
|
||
};
|
||
|
||
let br = Button::new(RichText::new(text_value).size(17.0).color(color))
|
||
.frame(false)
|
||
.stroke(Stroke::NONE)
|
||
.fill(Colors::TRANSPARENT)
|
||
.ui(ui)
|
||
.on_hover_cursor(CursorIcon::PointingHand);
|
||
if Self::touched(ui, br) {
|
||
(callback)();
|
||
}
|
||
}
|
||
|
||
/// Show a [`RadioButton`]. It is selected if `*current_value == selected_value`.
|
||
/// If clicked, `selected_value` is assigned to `*current_value`.
|
||
pub fn radio_value<T: PartialEq>(ui: &mut egui::Ui, current: &mut T, value: T, text: String) {
|
||
let mut response = ui.radio(*current == value, text)
|
||
.on_hover_cursor(CursorIcon::PointingHand);
|
||
;
|
||
if Self::touched(ui, response.clone()) && *current != value {
|
||
*current = value;
|
||
response.mark_changed();
|
||
}
|
||
}
|
||
|
||
/// Draw horizontal line.
|
||
pub fn horizontal_line(ui: &mut egui::Ui, color: Color32) {
|
||
let line_size = egui::Vec2::new(ui.available_width(), 1.0);
|
||
let (line_rect, _) = ui.allocate_exact_size(line_size, Sense::hover());
|
||
let painter = ui.painter();
|
||
painter.hline(line_rect.x_range(),
|
||
painter.round_to_pixel(line_rect.center().y),
|
||
Stroke { width: 1.0, color });
|
||
}
|
||
|
||
/// Format timestamp in seconds with local UTC offset.
|
||
pub fn format_time(ts: i64) -> String {
|
||
let utc_offset = chrono::Local::now().offset().local_minus_utc();
|
||
let utc_time = ts + utc_offset as i64;
|
||
let tx_time = chrono::DateTime::from_timestamp(utc_time, 0).unwrap();
|
||
tx_time.format("%d/%m/%Y %H:%M:%S").to_string()
|
||
}
|
||
|
||
/// Get top display inset (cutout) size.
|
||
pub fn get_top_inset() -> f32 {
|
||
TOP_DISPLAY_INSET.load(Ordering::Relaxed) as f32
|
||
}
|
||
|
||
/// Get right display inset (cutout) size.
|
||
pub fn get_right_inset() -> f32 {
|
||
RIGHT_DISPLAY_INSET.load(Ordering::Relaxed) as f32
|
||
}
|
||
|
||
/// Get bottom display inset (cutout) size.
|
||
pub fn get_bottom_inset() -> f32 {
|
||
BOTTOM_DISPLAY_INSET.load(Ordering::Relaxed) as f32
|
||
}
|
||
|
||
/// Get left display inset (cutout) size.
|
||
pub fn get_left_inset() -> f32 {
|
||
LEFT_DISPLAY_INSET.load(Ordering::Relaxed) as f32
|
||
}
|
||
|
||
}
|
||
|
||
lazy_static! {
|
||
static ref TOP_DISPLAY_INSET: AtomicI32 = AtomicI32::new(0);
|
||
static ref RIGHT_DISPLAY_INSET: AtomicI32 = AtomicI32::new(0);
|
||
static ref BOTTOM_DISPLAY_INSET: AtomicI32 = AtomicI32::new(0);
|
||
static ref LEFT_DISPLAY_INSET: AtomicI32 = AtomicI32::new(0);
|
||
}
|
||
|
||
#[allow(dead_code)]
|
||
#[cfg(target_os = "android")]
|
||
#[allow(non_snake_case)]
|
||
#[no_mangle]
|
||
/// Callback from Java code to update display insets (cutouts).
|
||
pub extern "C" fn Java_mw_gri_android_MainActivity_onDisplayInsets(
|
||
_env: jni::JNIEnv,
|
||
_class: jni::objects::JObject,
|
||
cutouts: jni::sys::jarray
|
||
) {
|
||
use jni::objects::{JObject, JPrimitiveArray};
|
||
|
||
let mut array: [i32; 4] = [0; 4];
|
||
unsafe {
|
||
let j_obj = JObject::from_raw(cutouts);
|
||
let j_arr = JPrimitiveArray::from(j_obj);
|
||
_env.get_int_array_region(j_arr, 0, array.as_mut()).unwrap();
|
||
}
|
||
TOP_DISPLAY_INSET.store(array[0], Ordering::Relaxed);
|
||
RIGHT_DISPLAY_INSET.store(array[1], Ordering::Relaxed);
|
||
BOTTOM_DISPLAY_INSET.store(array[2], Ordering::Relaxed);
|
||
LEFT_DISPLAY_INSET.store(array[3], Ordering::Relaxed);
|
||
}
|
||
|
||
lazy_static! {
|
||
static ref LAST_SOFT_KEYBOARD_INPUT: Arc<RwLock<String>> = Arc::new(RwLock::new("".to_string()));
|
||
}
|
||
|
||
#[allow(dead_code)]
|
||
#[cfg(target_os = "android")]
|
||
#[allow(non_snake_case)]
|
||
#[no_mangle]
|
||
/// Callback from Java code with last entered character from soft keyboard.
|
||
pub extern "C" fn Java_mw_gri_android_MainActivity_onInput(
|
||
_env: jni::JNIEnv,
|
||
_class: jni::objects::JObject,
|
||
char: jni::sys::jstring
|
||
) {
|
||
use jni::objects::{JString};
|
||
|
||
unsafe {
|
||
let j_obj = JString::from_raw(char);
|
||
let j_str = _env.get_string_unchecked(j_obj.as_ref()).unwrap();
|
||
match j_str.to_str() {
|
||
Ok(str) => {
|
||
let mut w_input = LAST_SOFT_KEYBOARD_INPUT.write().unwrap();
|
||
*w_input = w_input.clone().add(str);
|
||
}
|
||
Err(_) => {}
|
||
}
|
||
}
|
||
} |