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400 行
17 KiB
400 行
17 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using RSG;
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using Unity.UIWidgets.animation;
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using Unity.UIWidgets.foundation;
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using Unity.UIWidgets.material;
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using Unity.UIWidgets.painting;
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using Unity.UIWidgets.rendering;
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using Unity.UIWidgets.service;
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using Unity.UIWidgets.ui;
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using Unity.UIWidgets.widgets;
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using UnityEngine;
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using Color = Unity.UIWidgets.ui.Color;
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namespace UIWidgetsGallery.gallery {
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public static class HomeUtils {
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internal static readonly Color _kUIWidgetsBlue = new Color(0xFF003D75);
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internal const float _kDemoItemHeight = 64.0f;
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internal static TimeSpan _kFrontLayerSwitchDuration = new TimeSpan(0, 0, 0, 0, 300);
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}
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class _UIWidgetsLogo : StatelessWidget {
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public _UIWidgetsLogo(Key key = null) : base(key: key) {
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}
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public override Widget build(BuildContext context) {
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return new Center(
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child: new Container(
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width: 34.0f,
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height: 34.0f,
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decoration: new BoxDecoration(
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image: new DecorationImage(
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image: new AssetImage(
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"logos/unity.png")
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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 _CategoryItem : StatelessWidget {
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public _CategoryItem(
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Key key = null,
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GalleryDemoCategory category = null,
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VoidCallback onTap = null
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) : base(key: key) {
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this.category = category;
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this.onTap = onTap;
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}
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public readonly GalleryDemoCategory category;
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public readonly VoidCallback onTap;
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public override Widget build(BuildContext context) {
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ThemeData theme = Theme.of(context);
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bool isDark = theme.brightness == Brightness.dark;
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return new RepaintBoundary(
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child: new RawMaterialButton(
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padding: EdgeInsets.zero,
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splashColor: theme.primaryColor.withOpacity(0.12f),
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highlightColor: Colors.transparent,
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onPressed: this.onTap,
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child: new Column(
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mainAxisAlignment: MainAxisAlignment.end,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: new List<Widget> {
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new Padding(
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padding: EdgeInsets.all(6.0f),
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child: new Icon(
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this.category.icon,
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size: 60.0f,
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color: isDark ? Colors.white : HomeUtils._kUIWidgetsBlue
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)
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),
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new SizedBox(height: 10.0f),
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new Container(
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height: 48.0f,
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alignment: Alignment.center,
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child: new Text(
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this.category.name,
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textAlign: TextAlign.center,
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style: theme.textTheme.subhead.copyWith(
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fontFamily: "GoogleSans",
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color: isDark ? Colors.white : HomeUtils._kUIWidgetsBlue
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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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);
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}
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}
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class _CategoriesPage : StatelessWidget {
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public _CategoriesPage(
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Key key = null,
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IEnumerable<GalleryDemoCategory> categories = null,
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ValueChanged<GalleryDemoCategory> onCategoryTap = null
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) : base(key: key) {
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this.categories = categories;
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this.onCategoryTap = onCategoryTap;
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}
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public readonly IEnumerable<GalleryDemoCategory> categories;
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public readonly ValueChanged<GalleryDemoCategory> onCategoryTap;
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public override Widget build(BuildContext context) {
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float aspectRatio = 160.0f / 180.0f;
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List<GalleryDemoCategory> categoriesList = this.categories.ToList();
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int columnCount = (MediaQuery.of(context).orientation == Orientation.portrait) ? 2 : 3;
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return new SingleChildScrollView(
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key: new PageStorageKey<string>("categories"),
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child: new LayoutBuilder(
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builder: (_, constraints) => {
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float columnWidth = constraints.biggest.width / columnCount;
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float rowHeight = Mathf.Min(225.0f, columnWidth * aspectRatio);
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int rowCount = (categoriesList.Count + columnCount - 1) / columnCount;
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return new RepaintBoundary(
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child: new Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: Enumerable.Range(0, rowCount).Select(rowIndex => {
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int columnCountForRow = rowIndex == rowCount - 1
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? categoriesList.Count - columnCount * Mathf.Max(0, rowCount - 1)
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: columnCount;
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return (Widget) new Row(
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children: Enumerable.Range(0, columnCountForRow).Select(columnIndex => {
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int index = rowIndex * columnCount + columnIndex;
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GalleryDemoCategory category = categoriesList[index];
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return (Widget) new SizedBox(
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width: columnWidth,
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height: rowHeight,
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child: new _CategoryItem(
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category: category,
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onTap: () => { this.onCategoryTap(category); }
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)
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);
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}).ToList()
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);
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}).ToList()
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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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}
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class _DemoItem : StatelessWidget {
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public _DemoItem(Key key = null, GalleryDemo demo = null) : base(key: key) {
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this.demo = demo;
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}
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public readonly GalleryDemo demo;
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void _launchDemo(BuildContext context) {
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if (this.demo.routeName != null) {
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Navigator.pushNamed(context, this.demo.routeName);
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}
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}
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public override Widget build(BuildContext context) {
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ThemeData theme = Theme.of(context);
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bool isDark = theme.brightness == Brightness.dark;
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float textScaleFactor = MediaQuery.textScaleFactorOf(context);
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List<Widget> titleChildren = new List<Widget> {
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new Text(
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this.demo.title,
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style: theme.textTheme.subhead.copyWith(
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color: isDark ? Colors.white : new Color(0xFF202124)
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)
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),
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};
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if (this.demo.subtitle != null) {
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titleChildren.Add(
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new Text(
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this.demo.subtitle,
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style: theme.textTheme.body1.copyWith(
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color: isDark ? Colors.white : new Color(0xFF60646B)
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)
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)
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);
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}
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return new RawMaterialButton(
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padding: EdgeInsets.zero,
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splashColor: theme.primaryColor.withOpacity(0.12f),
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highlightColor: Colors.transparent,
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onPressed: () => { this._launchDemo(context); },
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child: new Container(
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constraints: new BoxConstraints(minHeight: HomeUtils._kDemoItemHeight * textScaleFactor),
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child: new Row(
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children: new List<Widget> {
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new Container(
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width: 56.0f,
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height: 56.0f,
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alignment: Alignment.center,
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child: new Icon(
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this.demo.icon,
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size: 24.0f,
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color: isDark ? Colors.white : HomeUtils._kUIWidgetsBlue
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)
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),
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new Expanded(
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child: new Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: titleChildren
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)
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),
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new SizedBox(width: 44.0f),
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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 _DemosPage : StatelessWidget {
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public _DemosPage(GalleryDemoCategory category) {
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this.category = category;
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}
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public readonly GalleryDemoCategory category;
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public override Widget build(BuildContext context) {
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float windowBottomPadding = MediaQuery.of(context).padding.bottom;
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return new KeyedSubtree(
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key: new ValueKey<string>("GalleryDemoList"),
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child: new ListView(
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key: new PageStorageKey<string>(this.category.name),
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padding: EdgeInsets.only(top: 8.0f, bottom: windowBottomPadding),
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children: DemoUtils.kGalleryCategoryToDemos[this.category]
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.Select(demo => (Widget) new _DemoItem(demo: demo)).ToList()
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)
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);
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}
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}
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public class GalleryHome : StatefulWidget {
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public GalleryHome(
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Key key = null,
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bool testMode = false,
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Widget optionsPage = null
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) : base(key: key) {
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this.testMode = testMode;
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this.optionsPage = optionsPage;
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}
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public readonly Widget optionsPage;
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public readonly bool testMode;
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public static bool showPreviewBanner = true;
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public override State createState() {
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// return new _GalleryHomeState();
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return null;
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}
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}
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// class _GalleryHomeState : SingleTickerProviderStateMixin<GalleryHome> {
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// static readonly GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>.key();
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// AnimationController _controller;
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// GalleryDemoCategory _category;
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//
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// static Widget _topHomeLayout(Widget currentChild, List<Widget> previousChildren) {
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// List<Widget> children = previousChildren;
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// if (currentChild != null) {
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// children = children.ToList();
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// children.Add(currentChild);
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// }
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//
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// return new Stack(
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// children: children,
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// alignment: Alignment.topCenter
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// );
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// }
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//
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// static const AnimatedSwitcherLayoutBuilder _centerHomeLayout = AnimatedSwitcher.defaultLayoutBuilder;
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//
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// public override void initState() {
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// base.initState();
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// this._controller = new AnimationController(
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// duration: new TimeSpan(0, 0, 0, 0, 600),
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// debugLabel: "preview banner",
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// vsync: this
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// );
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// this._controller.forward();
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// }
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//
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// public override void dispose() {
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// this._controller.dispose();
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// base.dispose();
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// }
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//
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// public override Widget build(BuildContext context) {
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// ThemeData theme = Theme.of(context);
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// bool isDark = theme.brightness == Brightness.dark;
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// MediaQueryData media = MediaQuery.of(context);
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// bool centerHome = media.orientation == Orientation.portrait && media.size.height < 800.0;
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//
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// Curve switchOutCurve = new Interval(0.4f, 1.0f, curve: Curves.fastOutSlowIn);
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// Curve switchInCurve = new Interval(0.4f, 1.0f, curve: Curves.fastOutSlowIn);
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//
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// Widget home = new Scaffold(
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// key: _scaffoldKey,
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// backgroundColor: isDark ? HomeUtils._kUIWidgetsBlue : theme.primaryColor,
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// body: new SafeArea(
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// bottom: false,
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// child: new WillPopScope(
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// onWillPop: () => {
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// // Pop the category page if Android back button is pressed.
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// if (this._category != null) {
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// this.setState(() => this._category = null);
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// return Promise<bool>.Resolved(false);
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// }
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// return Promise<bool>.Resolved(true);
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// },
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// child: new Backdrop(
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// backTitle: new Text("Options"),
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// backLayer: this.widget.optionsPage,
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// frontAction: new AnimatedSwitcher(
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// duration: HomeUtils._kFrontLayerSwitchDuration,
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// switchOutCurve: switchOutCurve,
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// switchInCurve: switchInCurve,
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// child: this._category == null
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// ? new _UIWidgetsLogo()
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// : new IconButton(
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// icon: new BackButtonIcon(),
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// tooltip: "Back",
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// onPressed: () => this.setState(() => this._category = null)
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// )
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// ),
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// frontTitle: new AnimatedSwitcher(
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// duration: HomeUtils._kFrontLayerSwitchDuration,
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// child: this._category == null
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// ? new Text("Flutter gallery")
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// : new Text(this._category.name)
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// ),
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// frontHeading: this.widget.testMode ? null : new Container(height: 24.0f),
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// frontLayer: new AnimatedSwitcher(
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// duration: HomeUtils._kFrontLayerSwitchDuration,
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// switchOutCurve: switchOutCurve,
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// switchInCurve: switchInCurve,
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// layoutBuilder: centerHome ? _centerHomeLayout : _topHomeLayout,
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// child: this._category != null
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// ? new _DemosPage(_category)
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// : new _CategoriesPage(
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// categories: DemoUtils.kAllGalleryDemoCategories,
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// onCategoryTap: (GalleryDemoCategory category) => {
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// this.setState(() => this._category = category);
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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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// );
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//
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// D.assert(() => {
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// GalleryHome.showPreviewBanner = false;
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// return true;
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// });
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//
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// if (GalleryHome.showPreviewBanner) {
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// home = new Stack(
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// fit: StackFit.expand,
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// children: new List<Widget> {
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// home,
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// new FadeTransition(
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// opacity: new CurvedAnimation(parent: this._controller, curve: Curves.easeInOut),
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// child: new Banner(
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// message: "PREVIEW",
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// location: BannerLocation.topEnd
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// )
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// )
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// }
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// );
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// }
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// home = new AnnotatedRegion<SystemUiOverlayStyle>(
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// child: home,
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// value: SystemUiOverlayStyle.light
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// );
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//
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// return home;
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// }
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// }
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}
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