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// Copyright 2021 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'color_palettes_screen.dart';
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import 'component_screen.dart';
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import 'constants.dart';
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import 'elevation_screen.dart';
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import 'typography_screen.dart';
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class Home extends StatefulWidget {
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const Home({
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super.key,
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required this.useLightMode,
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required this.useMaterial3,
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required this.colorSelected,
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required this.handleBrightnessChange,
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required this.handleMaterialVersionChange,
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required this.handleColorSelect,
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required this.handleImageSelect,
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required this.colorSelectionMethod,
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required this.imageSelected,
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});
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final bool useLightMode;
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final bool useMaterial3;
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final ColorSeed colorSelected;
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final ColorImageProvider imageSelected;
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final ColorSelectionMethod colorSelectionMethod;
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final void Function(bool useLightMode) handleBrightnessChange;
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final void Function() handleMaterialVersionChange;
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final void Function(int value) handleColorSelect;
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final void Function(int value) handleImageSelect;
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@override
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State<Home> createState() => _HomeState();
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}
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class _HomeState extends State<Home> with SingleTickerProviderStateMixin {
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final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();
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late final AnimationController controller;
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late final CurvedAnimation railAnimation;
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bool controllerInitialized = false;
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bool showMediumSizeLayout = false;
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bool showLargeSizeLayout = false;
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int screenIndex = ScreenSelected.component.value;
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@override
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initState() {
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super.initState();
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controller = AnimationController(
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duration: Duration(milliseconds: transitionLength.toInt() * 2),
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value: 0,
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vsync: this,
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);
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railAnimation = CurvedAnimation(
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parent: controller,
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curve: const Interval(0.5, 1.0),
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);
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}
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@override
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void dispose() {
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controller.dispose();
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super.dispose();
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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final double width = MediaQuery.of(context).size.width;
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final AnimationStatus status = controller.status;
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if (width > mediumWidthBreakpoint) {
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if (width > largeWidthBreakpoint) {
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showMediumSizeLayout = false;
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showLargeSizeLayout = true;
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} else {
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showMediumSizeLayout = true;
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showLargeSizeLayout = false;
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}
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if (status != AnimationStatus.forward &&
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status != AnimationStatus.completed) {
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controller.forward();
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}
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} else {
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showMediumSizeLayout = false;
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showLargeSizeLayout = false;
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if (status != AnimationStatus.reverse &&
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status != AnimationStatus.dismissed) {
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controller.reverse();
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}
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}
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if (!controllerInitialized) {
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controllerInitialized = true;
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controller.value = width > mediumWidthBreakpoint ? 1 : 0;
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}
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}
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void handleScreenChanged(int screenSelected) {
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setState(() {
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screenIndex = screenSelected;
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});
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}
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Widget createScreenFor(
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ScreenSelected screenSelected,
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bool showNavBarExample,
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) =>
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switch (screenSelected) {
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ScreenSelected.component => Expanded(
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child: OneTwoTransition(
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animation: railAnimation,
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one: FirstComponentList(
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showNavBottomBar: showNavBarExample,
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scaffoldKey: scaffoldKey,
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showSecondList: showMediumSizeLayout || showLargeSizeLayout),
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two: SecondComponentList(
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scaffoldKey: scaffoldKey,
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),
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),
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),
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ScreenSelected.color => const ColorPalettesScreen(),
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ScreenSelected.typography => const TypographyScreen(),
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ScreenSelected.elevation => const ElevationScreen()
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};
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PreferredSizeWidget createAppBar() {
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return AppBar(
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title: widget.useMaterial3
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? const Text('Material 3')
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: const Text('Material 2'),
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actions: !showMediumSizeLayout && !showLargeSizeLayout
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? [
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_BrightnessButton(
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handleBrightnessChange: widget.handleBrightnessChange,
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),
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_Material3Button(
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handleMaterialVersionChange: widget.handleMaterialVersionChange,
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),
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_ColorSeedButton(
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handleColorSelect: widget.handleColorSelect,
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colorSelected: widget.colorSelected,
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colorSelectionMethod: widget.colorSelectionMethod,
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),
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_ColorImageButton(
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handleImageSelect: widget.handleImageSelect,
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imageSelected: widget.imageSelected,
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colorSelectionMethod: widget.colorSelectionMethod,
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)
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]
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: [Container()],
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);
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}
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Widget _trailingActions() => Column(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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Flexible(
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child: _BrightnessButton(
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handleBrightnessChange: widget.handleBrightnessChange,
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showTooltipBelow: false,
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),
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),
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Flexible(
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child: _Material3Button(
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handleMaterialVersionChange: widget.handleMaterialVersionChange,
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showTooltipBelow: false,
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),
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),
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Flexible(
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child: _ColorSeedButton(
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handleColorSelect: widget.handleColorSelect,
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colorSelected: widget.colorSelected,
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colorSelectionMethod: widget.colorSelectionMethod,
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),
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),
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Flexible(
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child: _ColorImageButton(
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handleImageSelect: widget.handleImageSelect,
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imageSelected: widget.imageSelected,
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colorSelectionMethod: widget.colorSelectionMethod,
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),
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),
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],
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);
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@override
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Widget build(BuildContext context) {
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return AnimatedBuilder(
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animation: controller,
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builder: (context, child) {
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return NavigationTransition(
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scaffoldKey: scaffoldKey,
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animationController: controller,
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railAnimation: railAnimation,
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appBar: createAppBar(),
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body: createScreenFor(
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ScreenSelected.values[screenIndex], controller.value == 1),
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navigationRail: NavigationRail(
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extended: showLargeSizeLayout,
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destinations: navRailDestinations,
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selectedIndex: screenIndex,
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onDestinationSelected: (index) {
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setState(() {
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screenIndex = index;
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handleScreenChanged(screenIndex);
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});
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},
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trailing: Expanded(
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child: Padding(
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padding: const EdgeInsets.only(bottom: 20),
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child: showLargeSizeLayout
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? _ExpandedTrailingActions(
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useLightMode: widget.useLightMode,
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handleBrightnessChange: widget.handleBrightnessChange,
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useMaterial3: widget.useMaterial3,
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handleMaterialVersionChange:
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widget.handleMaterialVersionChange,
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handleImageSelect: widget.handleImageSelect,
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handleColorSelect: widget.handleColorSelect,
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colorSelectionMethod: widget.colorSelectionMethod,
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imageSelected: widget.imageSelected,
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colorSelected: widget.colorSelected,
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)
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: _trailingActions(),
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),
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),
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),
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navigationBar: NavigationBars(
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onSelectItem: (index) {
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setState(() {
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screenIndex = index;
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handleScreenChanged(screenIndex);
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});
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},
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selectedIndex: screenIndex,
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isExampleBar: false,
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),
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);
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},
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);
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}
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}
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class _BrightnessButton extends StatelessWidget {
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const _BrightnessButton({
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required this.handleBrightnessChange,
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this.showTooltipBelow = true,
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});
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final Function handleBrightnessChange;
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final bool showTooltipBelow;
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@override
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Widget build(BuildContext context) {
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final isBright = Theme.of(context).brightness == Brightness.light;
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return Tooltip(
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preferBelow: showTooltipBelow,
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message: 'Toggle brightness',
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child: IconButton(
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icon: isBright
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? const Icon(Icons.dark_mode_outlined)
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: const Icon(Icons.light_mode_outlined),
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onPressed: () => handleBrightnessChange(!isBright),
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),
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);
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}
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}
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class _Material3Button extends StatelessWidget {
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const _Material3Button({
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required this.handleMaterialVersionChange,
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this.showTooltipBelow = true,
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});
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final void Function() handleMaterialVersionChange;
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final bool showTooltipBelow;
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@override
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Widget build(BuildContext context) {
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final useMaterial3 = Theme.of(context).useMaterial3;
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return Tooltip(
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preferBelow: showTooltipBelow,
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message: 'Switch to Material ${useMaterial3 ? 2 : 3}',
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child: IconButton(
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icon: useMaterial3
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? const Icon(Icons.filter_2)
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: const Icon(Icons.filter_3),
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onPressed: handleMaterialVersionChange,
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),
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);
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}
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}
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class _ColorSeedButton extends StatelessWidget {
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const _ColorSeedButton({
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required this.handleColorSelect,
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required this.colorSelected,
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required this.colorSelectionMethod,
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});
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final void Function(int) handleColorSelect;
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final ColorSeed colorSelected;
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final ColorSelectionMethod colorSelectionMethod;
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@override
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Widget build(BuildContext context) {
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return PopupMenuButton(
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icon: Icon(
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Icons.palette_outlined,
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color: Theme.of(context).colorScheme.surfaceContainerHighest,
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),
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tooltip: 'Select a seed color',
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
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itemBuilder: (context) {
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return List.generate(ColorSeed.values.length, (index) {
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ColorSeed currentColor = ColorSeed.values[index];
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return PopupMenuItem(
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value: index,
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enabled: currentColor != colorSelected ||
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colorSelectionMethod != ColorSelectionMethod.colorSeed,
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child: Wrap(
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children: [
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Padding(
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padding: const EdgeInsets.only(left: 10),
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child: Icon(
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currentColor == colorSelected &&
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colorSelectionMethod != ColorSelectionMethod.image
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? Icons.color_lens
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: Icons.color_lens_outlined,
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color: currentColor.color,
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),
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),
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Padding(
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padding: const EdgeInsets.only(left: 20),
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child: Text(currentColor.label),
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),
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],
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),
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);
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});
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},
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onSelected: handleColorSelect,
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);
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}
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}
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class _ColorImageButton extends StatelessWidget {
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const _ColorImageButton({
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required this.handleImageSelect,
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required this.imageSelected,
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required this.colorSelectionMethod,
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});
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final void Function(int) handleImageSelect;
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final ColorImageProvider imageSelected;
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final ColorSelectionMethod colorSelectionMethod;
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@override
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Widget build(BuildContext context) {
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return PopupMenuButton(
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icon: Icon(
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Icons.image_outlined,
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color: Theme.of(context).colorScheme.surfaceContainerHighest,
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),
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tooltip: 'Select a color extraction image',
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
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itemBuilder: (context) {
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return List.generate(ColorImageProvider.values.length, (index) {
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ColorImageProvider currentImageProvider =
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ColorImageProvider.values[index];
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return PopupMenuItem(
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value: index,
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enabled: currentImageProvider != imageSelected ||
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colorSelectionMethod != ColorSelectionMethod.image,
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child: Wrap(
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crossAxisAlignment: WrapCrossAlignment.center,
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children: [
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Padding(
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padding: const EdgeInsets.only(left: 10),
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 48),
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child: Padding(
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padding: const EdgeInsets.all(4.0),
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child: ClipRRect(
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borderRadius: BorderRadius.circular(8.0),
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child: Image(
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image: NetworkImage(
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ColorImageProvider.values[index].url),
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),
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),
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),
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),
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),
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Padding(
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padding: const EdgeInsets.only(left: 20),
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child: Text(currentImageProvider.label),
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),
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],
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),
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);
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});
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},
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onSelected: handleImageSelect,
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);
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}
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}
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class _ExpandedTrailingActions extends StatelessWidget {
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|
|
const _ExpandedTrailingActions({
|
|
|
|
required this.useLightMode,
|
|
|
|
required this.handleBrightnessChange,
|
|
|
|
required this.useMaterial3,
|
|
|
|
required this.handleMaterialVersionChange,
|
|
|
|
required this.handleColorSelect,
|
|
|
|
required this.handleImageSelect,
|
|
|
|
required this.imageSelected,
|
|
|
|
required this.colorSelected,
|
|
|
|
required this.colorSelectionMethod,
|
|
|
|
});
|
|
|
|
|
|
|
|
final void Function(bool) handleBrightnessChange;
|
|
|
|
final void Function() handleMaterialVersionChange;
|
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|
|
final void Function(int) handleImageSelect;
|
|
|
|
final void Function(int) handleColorSelect;
|
|
|
|
|
|
|
|
final bool useLightMode;
|
|
|
|
final bool useMaterial3;
|
|
|
|
|
|
|
|
final ColorImageProvider imageSelected;
|
|
|
|
final ColorSeed colorSelected;
|
|
|
|
final ColorSelectionMethod colorSelectionMethod;
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|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
final screenHeight = MediaQuery.of(context).size.height;
|
|
|
|
final trailingActionsBody = Container(
|
|
|
|
constraints: const BoxConstraints.tightFor(width: 250),
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|
|
padding: const EdgeInsets.symmetric(horizontal: 30),
|
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|
|
child: Column(
|
|
|
|
mainAxisAlignment: MainAxisAlignment.end,
|
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|
|
crossAxisAlignment: CrossAxisAlignment.stretch,
|
|
|
|
children: [
|
|
|
|
Row(
|
|
|
|
children: [
|
|
|
|
const Text('Brightness'),
|
|
|
|
Expanded(child: Container()),
|
|
|
|
Switch(
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|
|
value: useLightMode,
|
|
|
|
onChanged: (value) {
|
|
|
|
handleBrightnessChange(value);
|
|
|
|
})
|
|
|
|
],
|
|
|
|
),
|
|
|
|
Row(
|
|
|
|
children: [
|
|
|
|
useMaterial3
|
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|
|
? const Text('Material 3')
|
|
|
|
: const Text('Material 2'),
|
|
|
|
Expanded(child: Container()),
|
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|
|
Switch(
|
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|
|
value: useMaterial3,
|
|
|
|
onChanged: (_) {
|
|
|
|
handleMaterialVersionChange();
|
|
|
|
})
|
|
|
|
],
|
|
|
|
),
|
|
|
|
const Divider(),
|
|
|
|
_ExpandedColorSeedAction(
|
|
|
|
handleColorSelect: handleColorSelect,
|
|
|
|
colorSelected: colorSelected,
|
|
|
|
colorSelectionMethod: colorSelectionMethod,
|
|
|
|
),
|
|
|
|
const Divider(),
|
|
|
|
_ExpandedImageColorAction(
|
|
|
|
handleImageSelect: handleImageSelect,
|
|
|
|
imageSelected: imageSelected,
|
|
|
|
colorSelectionMethod: colorSelectionMethod,
|
|
|
|
),
|
|
|
|
],
|
|
|
|
),
|
|
|
|
);
|
|
|
|
return screenHeight > 740
|
|
|
|
? trailingActionsBody
|
|
|
|
: SingleChildScrollView(child: trailingActionsBody);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
class _ExpandedColorSeedAction extends StatelessWidget {
|
|
|
|
const _ExpandedColorSeedAction({
|
|
|
|
required this.handleColorSelect,
|
|
|
|
required this.colorSelected,
|
|
|
|
required this.colorSelectionMethod,
|
|
|
|
});
|
|
|
|
|
|
|
|
final void Function(int) handleColorSelect;
|
|
|
|
final ColorSeed colorSelected;
|
|
|
|
final ColorSelectionMethod colorSelectionMethod;
|
|
|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
return ConstrainedBox(
|
|
|
|
constraints: const BoxConstraints(maxHeight: 200.0),
|
|
|
|
child: GridView.count(
|
|
|
|
crossAxisCount: 3,
|
|
|
|
children: List.generate(
|
|
|
|
ColorSeed.values.length,
|
|
|
|
(i) => IconButton(
|
|
|
|
icon: const Icon(Icons.radio_button_unchecked),
|
|
|
|
color: ColorSeed.values[i].color,
|
|
|
|
isSelected: colorSelected.color == ColorSeed.values[i].color &&
|
|
|
|
colorSelectionMethod == ColorSelectionMethod.colorSeed,
|
|
|
|
selectedIcon: const Icon(Icons.circle),
|
|
|
|
onPressed: () {
|
|
|
|
handleColorSelect(i);
|
|
|
|
},
|
|
|
|
tooltip: ColorSeed.values[i].label,
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
class _ExpandedImageColorAction extends StatelessWidget {
|
|
|
|
const _ExpandedImageColorAction({
|
|
|
|
required this.handleImageSelect,
|
|
|
|
required this.imageSelected,
|
|
|
|
required this.colorSelectionMethod,
|
|
|
|
});
|
|
|
|
|
|
|
|
final void Function(int) handleImageSelect;
|
|
|
|
final ColorImageProvider imageSelected;
|
|
|
|
final ColorSelectionMethod colorSelectionMethod;
|
|
|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
return ConstrainedBox(
|
|
|
|
constraints: const BoxConstraints(maxHeight: 150.0),
|
|
|
|
child: Padding(
|
|
|
|
padding: const EdgeInsets.symmetric(vertical: 8.0),
|
|
|
|
child: GridView.count(
|
|
|
|
crossAxisCount: 3,
|
|
|
|
children: List.generate(
|
|
|
|
ColorImageProvider.values.length,
|
|
|
|
(i) => Tooltip(
|
|
|
|
message: ColorImageProvider.values[i].name,
|
|
|
|
child: InkWell(
|
|
|
|
borderRadius: BorderRadius.circular(4.0),
|
|
|
|
onTap: () => handleImageSelect(i),
|
|
|
|
child: Padding(
|
|
|
|
padding: const EdgeInsets.all(8.0),
|
|
|
|
child: Material(
|
|
|
|
borderRadius: BorderRadius.circular(4.0),
|
|
|
|
elevation: imageSelected == ColorImageProvider.values[i] &&
|
|
|
|
colorSelectionMethod == ColorSelectionMethod.image
|
|
|
|
? 3
|
|
|
|
: 0,
|
|
|
|
child: Padding(
|
|
|
|
padding: const EdgeInsets.all(4.0),
|
|
|
|
child: ClipRRect(
|
|
|
|
borderRadius: BorderRadius.circular(4.0),
|
|
|
|
child: Image(
|
|
|
|
image: NetworkImage(ColorImageProvider.values[i].url),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
class NavigationTransition extends StatefulWidget {
|
|
|
|
const NavigationTransition(
|
|
|
|
{super.key,
|
|
|
|
required this.scaffoldKey,
|
|
|
|
required this.animationController,
|
|
|
|
required this.railAnimation,
|
|
|
|
required this.navigationRail,
|
|
|
|
required this.navigationBar,
|
|
|
|
required this.appBar,
|
|
|
|
required this.body});
|
|
|
|
|
|
|
|
final GlobalKey<ScaffoldState> scaffoldKey;
|
|
|
|
final AnimationController animationController;
|
|
|
|
final CurvedAnimation railAnimation;
|
|
|
|
final Widget navigationRail;
|
|
|
|
final Widget navigationBar;
|
|
|
|
final PreferredSizeWidget appBar;
|
|
|
|
final Widget body;
|
|
|
|
|
|
|
|
@override
|
|
|
|
State<NavigationTransition> createState() => _NavigationTransitionState();
|
|
|
|
}
|
|
|
|
|
|
|
|
class _NavigationTransitionState extends State<NavigationTransition> {
|
|
|
|
late final AnimationController controller;
|
|
|
|
late final CurvedAnimation railAnimation;
|
|
|
|
late final ReverseAnimation barAnimation;
|
|
|
|
bool controllerInitialized = false;
|
|
|
|
bool showDivider = false;
|
|
|
|
|
|
|
|
@override
|
|
|
|
void initState() {
|
|
|
|
super.initState();
|
|
|
|
|
|
|
|
controller = widget.animationController;
|
|
|
|
railAnimation = widget.railAnimation;
|
|
|
|
|
|
|
|
barAnimation = ReverseAnimation(
|
|
|
|
CurvedAnimation(
|
|
|
|
parent: controller,
|
|
|
|
curve: const Interval(0.0, 0.5),
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
final ColorScheme colorScheme = Theme.of(context).colorScheme;
|
|
|
|
|
|
|
|
return Scaffold(
|
|
|
|
key: widget.scaffoldKey,
|
|
|
|
appBar: widget.appBar,
|
|
|
|
body: Row(
|
|
|
|
children: <Widget>[
|
|
|
|
RailTransition(
|
|
|
|
animation: railAnimation,
|
|
|
|
backgroundColor: colorScheme.surface,
|
|
|
|
child: widget.navigationRail,
|
|
|
|
),
|
|
|
|
widget.body,
|
|
|
|
],
|
|
|
|
),
|
|
|
|
bottomNavigationBar: BarTransition(
|
|
|
|
animation: barAnimation,
|
|
|
|
backgroundColor: colorScheme.surface,
|
|
|
|
child: widget.navigationBar,
|
|
|
|
),
|
|
|
|
endDrawer: const NavigationDrawerSection(),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
final List<NavigationRailDestination> navRailDestinations = appBarDestinations
|
|
|
|
.map(
|
|
|
|
(destination) => NavigationRailDestination(
|
|
|
|
icon: Tooltip(
|
|
|
|
message: destination.label,
|
|
|
|
child: destination.icon,
|
|
|
|
),
|
|
|
|
selectedIcon: Tooltip(
|
|
|
|
message: destination.label,
|
|
|
|
child: destination.selectedIcon,
|
|
|
|
),
|
|
|
|
label: Text(destination.label),
|
|
|
|
),
|
|
|
|
)
|
|
|
|
.toList();
|
|
|
|
|
|
|
|
class SizeAnimation extends CurvedAnimation {
|
|
|
|
SizeAnimation(Animation<double> parent)
|
|
|
|
: super(
|
|
|
|
parent: parent,
|
|
|
|
curve: const Interval(
|
|
|
|
0.2,
|
|
|
|
0.8,
|
|
|
|
curve: Curves.easeInOutCubicEmphasized,
|
|
|
|
),
|
|
|
|
reverseCurve: Interval(
|
|
|
|
0,
|
|
|
|
0.2,
|
|
|
|
curve: Curves.easeInOutCubicEmphasized.flipped,
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
class OffsetAnimation extends CurvedAnimation {
|
|
|
|
OffsetAnimation(Animation<double> parent)
|
|
|
|
: super(
|
|
|
|
parent: parent,
|
|
|
|
curve: const Interval(
|
|
|
|
0.4,
|
|
|
|
1.0,
|
|
|
|
curve: Curves.easeInOutCubicEmphasized,
|
|
|
|
),
|
|
|
|
reverseCurve: Interval(
|
|
|
|
0,
|
|
|
|
0.2,
|
|
|
|
curve: Curves.easeInOutCubicEmphasized.flipped,
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
class RailTransition extends StatefulWidget {
|
|
|
|
const RailTransition(
|
|
|
|
{super.key,
|
|
|
|
required this.animation,
|
|
|
|
required this.backgroundColor,
|
|
|
|
required this.child});
|
|
|
|
|
|
|
|
final Animation<double> animation;
|
|
|
|
final Widget child;
|
|
|
|
final Color backgroundColor;
|
|
|
|
|
|
|
|
@override
|
|
|
|
State<RailTransition> createState() => _RailTransition();
|
|
|
|
}
|
|
|
|
|
|
|
|
class _RailTransition extends State<RailTransition> {
|
|
|
|
late Animation<Offset> offsetAnimation;
|
|
|
|
late Animation<double> widthAnimation;
|
|
|
|
|
|
|
|
@override
|
|
|
|
void didChangeDependencies() {
|
|
|
|
super.didChangeDependencies();
|
|
|
|
|
|
|
|
// The animations are only rebuilt by this method when the text
|
|
|
|
// direction changes because this widget only depends on Directionality.
|
|
|
|
final bool ltr = Directionality.of(context) == TextDirection.ltr;
|
|
|
|
|
|
|
|
widthAnimation = Tween<double>(
|
|
|
|
begin: 0,
|
|
|
|
end: 1,
|
|
|
|
).animate(SizeAnimation(widget.animation));
|
|
|
|
|
|
|
|
offsetAnimation = Tween<Offset>(
|
|
|
|
begin: ltr ? const Offset(-1, 0) : const Offset(1, 0),
|
|
|
|
end: Offset.zero,
|
|
|
|
).animate(OffsetAnimation(widget.animation));
|
|
|
|
}
|
|
|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
return ClipRect(
|
|
|
|
child: DecoratedBox(
|
|
|
|
decoration: BoxDecoration(color: widget.backgroundColor),
|
|
|
|
child: Align(
|
|
|
|
alignment: Alignment.topLeft,
|
|
|
|
widthFactor: widthAnimation.value,
|
|
|
|
child: FractionalTranslation(
|
|
|
|
translation: offsetAnimation.value,
|
|
|
|
child: widget.child,
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
class BarTransition extends StatefulWidget {
|
|
|
|
const BarTransition(
|
|
|
|
{super.key,
|
|
|
|
required this.animation,
|
|
|
|
required this.backgroundColor,
|
|
|
|
required this.child});
|
|
|
|
|
|
|
|
final Animation<double> animation;
|
|
|
|
final Color backgroundColor;
|
|
|
|
final Widget child;
|
|
|
|
|
|
|
|
@override
|
|
|
|
State<BarTransition> createState() => _BarTransition();
|
|
|
|
}
|
|
|
|
|
|
|
|
class _BarTransition extends State<BarTransition> {
|
|
|
|
late final Animation<Offset> offsetAnimation;
|
|
|
|
late final Animation<double> heightAnimation;
|
|
|
|
|
|
|
|
@override
|
|
|
|
void initState() {
|
|
|
|
super.initState();
|
|
|
|
|
|
|
|
offsetAnimation = Tween<Offset>(
|
|
|
|
begin: const Offset(0, 1),
|
|
|
|
end: Offset.zero,
|
|
|
|
).animate(OffsetAnimation(widget.animation));
|
|
|
|
|
|
|
|
heightAnimation = Tween<double>(
|
|
|
|
begin: 0,
|
|
|
|
end: 1,
|
|
|
|
).animate(SizeAnimation(widget.animation));
|
|
|
|
}
|
|
|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
return ClipRect(
|
|
|
|
child: DecoratedBox(
|
|
|
|
decoration: BoxDecoration(color: widget.backgroundColor),
|
|
|
|
child: Align(
|
|
|
|
alignment: Alignment.topLeft,
|
|
|
|
heightFactor: heightAnimation.value,
|
|
|
|
child: FractionalTranslation(
|
|
|
|
translation: offsetAnimation.value,
|
|
|
|
child: widget.child,
|
|
|
|
),
|
|
|
|
),
|
|
|
|
),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
class OneTwoTransition extends StatefulWidget {
|
|
|
|
const OneTwoTransition({
|
|
|
|
super.key,
|
|
|
|
required this.animation,
|
|
|
|
required this.one,
|
|
|
|
required this.two,
|
|
|
|
});
|
|
|
|
|
|
|
|
final Animation<double> animation;
|
|
|
|
final Widget one;
|
|
|
|
final Widget two;
|
|
|
|
|
|
|
|
@override
|
|
|
|
State<OneTwoTransition> createState() => _OneTwoTransitionState();
|
|
|
|
}
|
|
|
|
|
|
|
|
class _OneTwoTransitionState extends State<OneTwoTransition> {
|
|
|
|
late final Animation<Offset> offsetAnimation;
|
|
|
|
late final Animation<double> widthAnimation;
|
|
|
|
|
|
|
|
@override
|
|
|
|
void initState() {
|
|
|
|
super.initState();
|
|
|
|
|
|
|
|
offsetAnimation = Tween<Offset>(
|
|
|
|
begin: const Offset(1, 0),
|
|
|
|
end: Offset.zero,
|
|
|
|
).animate(OffsetAnimation(widget.animation));
|
|
|
|
|
|
|
|
widthAnimation = Tween<double>(
|
|
|
|
begin: 0,
|
|
|
|
end: mediumWidthBreakpoint,
|
|
|
|
).animate(SizeAnimation(widget.animation));
|
|
|
|
}
|
|
|
|
|
|
|
|
@override
|
|
|
|
Widget build(BuildContext context) {
|
|
|
|
return Row(
|
|
|
|
children: <Widget>[
|
|
|
|
Flexible(
|
|
|
|
flex: mediumWidthBreakpoint.toInt(),
|
|
|
|
child: widget.one,
|
|
|
|
),
|
|
|
|
if (widthAnimation.value.toInt() > 0) ...[
|
|
|
|
Flexible(
|
|
|
|
flex: widthAnimation.value.toInt(),
|
|
|
|
child: FractionalTranslation(
|
|
|
|
translation: offsetAnimation.value,
|
|
|
|
child: widget.two,
|
|
|
|
),
|
|
|
|
)
|
|
|
|
],
|
|
|
|
],
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|