From 6048dda8cc37fd92683053f6e757d8aa3e235441 Mon Sep 17 00:00:00 2001
From: He Hang <hehang724590957@qq.com>
Date: Tue, 7 Nov 2023 16:23:25 +0800
Subject: [PATCH] Desktop lyric scrolling,theme

---
 windows/LyricWindow.xaml      | 22 +++++----------
 windows/LyricWindow.xaml.cs   | 53 +++++++++++++++++++++++++++++++----
 windows/MainWindow.xaml.cs    | 12 ++++----
 windows/Server/HttpHandler.cs |  4 ++-
 windows/Utils/IconFont.cs     |  5 +---
 5 files changed, 66 insertions(+), 30 deletions(-)

diff --git a/windows/LyricWindow.xaml b/windows/LyricWindow.xaml
index 192a8dd..fb71510 100644
--- a/windows/LyricWindow.xaml
+++ b/windows/LyricWindow.xaml
@@ -8,18 +8,6 @@
         ShowInTaskbar="False" Height="100" Width="500" MinWidth="360" MinHeight="100"
         MouseEnter="Window_MouseEnter" MouseLeave="Window_MouseLeave"
         Loaded="Window_Loaded" Closing="Window_Closing" MouseLeftButtonDown="DragWindow">
-    <!--<WindowChrome.WindowChrome>
-        <WindowChrome CaptionHeight="0" ResizeBorderThickness="8" CornerRadius="8" GlassFrameThickness="-1" UseAeroCaptionButtons="True" />
-    </WindowChrome.WindowChrome>-->
-    <Window.Resources>
-        <Style TargetType="Label">
-            <Setter Property="Effect">
-                <Setter.Value>
-                    <DropShadowEffect ShadowDepth="0" BlurRadius="2"/>
-                </Setter.Value>
-            </Setter>
-        </Style>
-    </Window.Resources>
     <Border x:Name="LyricBorder" CornerRadius="8" Margin="5">
         <Grid>
             <Grid.RowDefinitions>
@@ -27,13 +15,17 @@
                 <RowDefinition></RowDefinition>
             </Grid.RowDefinitions>
             <StackPanel x:Name="IconPannel" Orientation="Horizontal" HorizontalAlignment="Center" Visibility="Collapsed">
-                <Label Name="LockLabel" Background="#01000000" Content="锁" Cursor="Hand" PreviewMouseLeftButtonDown="LockWindow" Tag="last" Width="40" FontSize="20" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" />
+                <Label Name="LockLabel" Background="#01000000" Content="锁" Cursor="Hand" PreviewMouseLeftButtonDown="LockWindow" Tag="last" Width="40" FontSize="20" HorizontalContentAlignment="Center" VerticalContentAlignment="Center">
+                    <Label.Effect>
+                        <DropShadowEffect Color="Transparent" ShadowDepth="0" BlurRadius="2"/>
+                    </Label.Effect>
+                </Label>
                 <Label Content="前" Cursor="Hand" PreviewMouseLeftButtonDown="MusicOperate" Tag="last" Width="40" FontSize="20" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
                 <Label Name="PlayOrPause" Content="播" Cursor="Hand" PreviewMouseLeftButtonDown="MusicOperate" Tag="playOrPause" Width="40" FontSize="20" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
                 <Label Content="后" Cursor="Hand" PreviewMouseLeftButtonDown="MusicOperate" Tag="next" Width="40" FontSize="20" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
-                <Label Content="关" Cursor="Hand" PreviewMouseLeftButtonDown="CloseWindow" Width="40" FontSize="14" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
+                <Label Content="关" Cursor="Hand" PreviewMouseLeftButtonDown="CloseWindow" Width="40" FontSize="13" FontWeight="Bold" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
             </StackPanel>
-            <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Hidden" HorizontalScrollBarVisibility="Hidden" PreviewMouseLeftButtonDown="DragWindow">
+            <ScrollViewer x:Name="LyricScroll" Grid.Row="1" VerticalScrollBarVisibility="Hidden" HorizontalScrollBarVisibility="Hidden" PreviewMouseLeftButtonDown="DragWindow">
                 <Label Background="#01000000" FontSize="20" Name="Lyric" HorizontalAlignment="Center" VerticalAlignment="Center">
                     <Label.Effect>
                         <DropShadowEffect ShadowDepth="0" BlurRadius="2"/>
diff --git a/windows/LyricWindow.xaml.cs b/windows/LyricWindow.xaml.cs
index 78835c5..e45a742 100644
--- a/windows/LyricWindow.xaml.cs
+++ b/windows/LyricWindow.xaml.cs
@@ -8,6 +8,7 @@
 using System.Windows.Interop;
 using System.Windows.Media;
 using System.Windows.Media.Effects;
+using System.Windows.Threading;
 using Rectangle = System.Windows.Shapes.Rectangle;
 
 namespace Musiche
@@ -21,12 +22,15 @@ public partial class LyricWindow : Window
         private bool locked = false;
         private readonly DropShadowEffect lyricEffect;
         private readonly WebSocketHandler webSocketHandler;
-        private readonly Brush hoverBackground = new SolidColorBrush(Color.FromArgb(0x80, 0xFF, 0xFF, 0xFF));
-        private readonly Brush hoverBackgroundTransparent = new SolidColorBrush(Color.FromArgb(0x01, 0x00, 0x00, 0x00));
+        private static readonly Brush hoverBackgroundDark = new SolidColorBrush(Color.FromArgb(0x80, 0x00, 0x00, 0x00));
+        private static readonly Brush hoverBackgroundLight = new SolidColorBrush(Color.FromArgb(0x80, 0xFF, 0xFF, 0xFF));
+        private static readonly Brush hoverBackgroundTransparent = new SolidColorBrush(Color.FromArgb(0x01, 0x00, 0x00, 0x00));
+        private Brush hoverBackground = hoverBackgroundLight;
         private readonly FontFamily defaultFontfamily = new FontFamily("Microsoft YaHei UI");
         private readonly string statusSavePath = Path.Combine(Utils.File.DataPath, "lyric.config.json");
         private Utils.WindowResize windowResize = null;
-        public LyricWindow(WebSocketHandler webSocketHandler, string title)
+        private DispatcherTimer lyricTimer = null;
+        public LyricWindow(WebSocketHandler webSocketHandler, string title, bool dark)
         {
             this.webSocketHandler = webSocketHandler;
             InitializeComponent();
@@ -36,6 +40,21 @@ public LyricWindow(WebSocketHandler webSocketHandler, string title)
             defaultFontfamily = Lyric.FontFamily;
             SetIcons();
             SetStatus();
+            SetTheme(dark);
+        }
+
+        public void SetTheme(bool dark)
+        {
+            hoverBackground = dark ? hoverBackgroundDark : hoverBackgroundLight;
+            foreach (object item in IconPannel.Children)
+            {
+                if (item is Label label)
+                {
+                    label.Foreground = dark ? Brushes.White : Brushes.Black;
+                }
+            }
+            if(LockLabel.Effect is DropShadowEffect effect)
+                effect.Color = dark ? Colors.Black : Colors.White;
         }
 
         private void SetStatus()
@@ -77,7 +96,6 @@ private void SetIcons()
                 if(item is Label label)
                 {
                     label.FontFamily = fontFamily;
-                    label.FontWeight = FontWeights.Bold;
                 }
             }
         }
@@ -155,9 +173,33 @@ public void SetOptions(LyricOptions options)
             }
         }
 
-        internal void SetLine(string line)
+        private double scrollStep = 0;
+        public void SetLine(string line, double duration=0)
         {
+            LyricScroll.ScrollToHorizontalOffset(0);
             Lyric.Content = line;
+            lyricTimer?.Stop();
+            //更新行, 591.4000000000001, 350, 591.4000000000001
+            System.Diagnostics.Trace.WriteLine($"更新行, {LyricScroll.ExtentWidth}, {LyricScroll.ActualWidth}, {Lyric.ActualWidth}");
+            if (duration > 0 && duration < 60000 && LyricScroll.ExtentWidth > LyricScroll.ActualWidth)
+            {
+                scrollStep = (LyricScroll.ExtentWidth - LyricScroll.ActualWidth) / (duration / 33);
+                lyricTimer = new DispatcherTimer();
+                lyricTimer.Interval = TimeSpan.FromMilliseconds(33);
+                lyricTimer.Tick += TimerSetScroll;
+                lyricTimer.Start();
+            }
+        }
+
+        private void TimerSetScroll(object sender, EventArgs e)
+        {
+            if (scrollStep <= 0) return;
+            LyricScroll.ScrollToHorizontalOffset(LyricScroll.HorizontalOffset+scrollStep);
+            if(LyricScroll.ExtentWidth - LyricScroll.ActualWidth <= 
+                LyricScroll.HorizontalOffset && sender is DispatcherTimer timer)
+            {
+                timer.Stop();
+            }
         }
 
         private void Window_MouseEnter(object sender, MouseEventArgs e)
@@ -253,6 +295,7 @@ public void AudioPlayStateChanged(bool playing)
         static extern int GetWindowLong(IntPtr hWnd, int nIndex);
         [DllImport("user32.dll")]
         static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
+
         private const int GWL_EX_STYLE = -20;
         private const int WS_EX_APPWINDOW = 0x00040000, WS_EX_TOOLWINDOW = 0x00000080;
     }
diff --git a/windows/MainWindow.xaml.cs b/windows/MainWindow.xaml.cs
index 2bd177b..7a213c5 100644
--- a/windows/MainWindow.xaml.cs
+++ b/windows/MainWindow.xaml.cs
@@ -30,6 +30,7 @@ public partial class MainWindow : Window
         Stream logStream = null;
         Hotkey.Hotkey hotkey = null;
         LyricWindow lyricWindow;
+        private bool dark = false;
         public MainWindow()
         {
             InitializeComponent();
@@ -217,15 +218,16 @@ public void SetTitle(string title)
         public void SetTheme(int preferredColorSchemeNumber)
         {
             var preferredColorScheme = CoreWebView2PreferredColorScheme.Auto;
-            var dark = ThemeListener.IsDarkMode;
+            dark = ThemeListener.IsDarkMode;
             if (Enum.IsDefined(typeof(CoreWebView2PreferredColorScheme), preferredColorSchemeNumber))
             {
                 preferredColorScheme = (CoreWebView2PreferredColorScheme)Enum.ToObject(typeof(CoreWebView2PreferredColorScheme), preferredColorSchemeNumber);
                 dark = preferredColorScheme == CoreWebView2PreferredColorScheme.Dark;
             }
             webview2.SetTheme(preferredColorScheme);
+            lyricWindow?.SetTheme(dark);
             var windowHandle = new WindowInteropHelper(this).EnsureHandle();
-            if (windowHandle == null || windowHandle == IntPtr.Zero) return;
+            if (windowHandle == IntPtr.Zero) return;
             Utils.Areo.Apply(windowHandle, dark);
         }
 
@@ -233,7 +235,7 @@ public void SetLyric(LyricOptions options)
         {
             if(options.Show && lyricWindow == null)
             {
-                lyricWindow = new LyricWindow(webSocketHandler, options.Title);
+                lyricWindow = new LyricWindow(webSocketHandler, options.Title, dark);
                 lyricWindow.Show();
                 lyricWindow.Closed += LyricWindow_Closed;
             }
@@ -245,9 +247,9 @@ private void LyricWindow_Closed(object sender, EventArgs e)
             lyricWindow = null;
         }
 
-        internal void SetLyricLine(string line)
+        internal void SetLyricLine(string line, double duration=0)
         {
-            lyricWindow?.SetLine(line);
+            lyricWindow?.SetLine(line, duration);
         }
     }
 }
diff --git a/windows/Server/HttpHandler.cs b/windows/Server/HttpHandler.cs
index f3c1f56..fc05d93 100644
--- a/windows/Server/HttpHandler.cs
+++ b/windows/Server/HttpHandler.cs
@@ -294,9 +294,11 @@ public async Task SetLyricLine(HttpListenerContext ctx)
             string line = ctx.Request.DataAsString();
             if (!string.IsNullOrWhiteSpace(line))
             {
+                string durationString = ctx.Request.QueryString["duration"] ?? string.Empty;
+                double.TryParse(durationString, out double duration);
                 window.Dispatcher.Invoke(() =>
                 {
-                    window.SetLyricLine(line);
+                    window.SetLyricLine(line, duration);
                 });
             }
             await SendString(ctx, string.Empty);
diff --git a/windows/Utils/IconFont.cs b/windows/Utils/IconFont.cs
index e08411f..84767c4 100644
--- a/windows/Utils/IconFont.cs
+++ b/windows/Utils/IconFont.cs
@@ -16,10 +16,7 @@ static IconFont()
             //privateFonts.AddMemoryFont(ptrData, length);
             //Marshal.FreeCoTaskMem(ptrData);
             File.CreateDirectoryIFNotExists(Path.GetDirectoryName(IconFontPath));
-            if (!System.IO.File.Exists(IconFontPath))
-            {
-                System.IO.File.WriteAllBytes(IconFontPath, Properties.Resources.iconfont);
-            }
+            System.IO.File.WriteAllBytes(IconFontPath, Properties.Resources.iconfont);
         }
     }
 }