89 lines
2.3 KiB
C#
89 lines
2.3 KiB
C#
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using System;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Animation;
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using BetterSeewoInstaller.Pages;
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namespace BetterSeewoInstaller;
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public partial class MainWindow : Window
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{
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private int _currentPageIndex;
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private readonly Page[] _pages;
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public MainWindow()
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{
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InitializeComponent();
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_pages = new Page[]
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{
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new WelcomePage(),
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new InstallPage(),
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new CompletePage()
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};
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NavigateToPage(0);
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}
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private void TitleBar_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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if (e.ClickCount == 1) DragMove();
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}
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private void BtnClose_Click(object sender, RoutedEventArgs e) => Close();
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private void BtnBack_Click(object sender, RoutedEventArgs e)
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{
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if (_currentPageIndex > 0) NavigateToPage(_currentPageIndex - 1);
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}
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private void BtnNext_Click(object sender, RoutedEventArgs e)
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{
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if (_currentPageIndex < _pages.Length - 1)
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NavigateToPage(_currentPageIndex + 1);
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}
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private void NavigateToPage(int index)
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{
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_currentPageIndex = index;
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var oldContent = PageContent.Content;
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var newContent = _pages[index];
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// 淡出旧页面
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var fadeOut = new DoubleAnimation(1, 0, TimeSpan.FromMilliseconds(150));
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fadeOut.Completed += (_, _) =>
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{
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PageContent.Content = newContent;
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// 淡入新页面
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var fadeIn = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
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PageContent.BeginAnimation(OpacityProperty, fadeIn);
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UpdateButtons();
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};
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PageContent.BeginAnimation(OpacityProperty, fadeOut);
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}
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private void UpdateButtons()
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{
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StepText.Text = $"第 {_currentPageIndex + 1} 步，共 {_pages.Length} 步";
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BtnBack.Visibility = _currentPageIndex > 0 ? Visibility.Visible : Visibility.Collapsed;
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if (_currentPageIndex == _pages.Length - 1)
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{
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BtnNext.Content = "完成";
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}
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else if (_currentPageIndex == 1)
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{
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BtnNext.Content = "安装";
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}
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else
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{
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BtnNext.Content = "下一步";
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}
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}
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}
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