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Closes #2
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@sqybi
sqybi committed Jan 15, 2023
1 parent 0ed5906 commit c06f844
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Showing 3 changed files with 180 additions and 66 deletions.
7 changes: 5 additions & 2 deletions GenshinMusicPlayer/MainWindow.xaml
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Original file line number Diff line number Diff line change
Expand Up @@ -81,7 +81,10 @@
</Grid.RowDefinitions>
<TextBlock HorizontalAlignment="Center" FontSize="20">演奏音乐</TextBlock>
<Separator Grid.Row="1" Margin="0,10,0,0"/>
<Button Grid.Row="2" x:Name="ButtonStart" Width="100" Margin="0,10,0,0" Click="ButtonStart_Click">开始演奏</Button>
<StackPanel Grid.Row="2" Margin="0,10,0,0">
<Button x:Name="ButtonStart" Width="100" Click="ButtonStart_Click">开始演奏</Button>
<TextBlock Margin="0,2" HorizontalAlignment="Center">快捷键：Ctrl + Shift + F12</TextBlock>
</StackPanel>
<Grid Grid.Row="3" Margin="0,10,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
Expand All @@ -91,7 +94,7 @@
<TextBox x:Name="TextBoxCurrentNote" Grid.Column="1" IsReadOnly="True"></TextBox>
</Grid>
<TextBlock Grid.Row="4" Margin="0,10,0,0">历史音符：</TextBlock>
<ScrollViewer Grid.Row="5" Margin="0,5,0,0" ScrollViewer.VerticalScrollBarVisibility="Auto">
<ScrollViewer x:Name="ScrollViewerHistoryNotes" Grid.Row="5" Margin="0,5,0,0" ScrollViewer.VerticalScrollBarVisibility="Auto">
<WrapPanel x:Name="WrapPanelHistoryNotes">
</WrapPanel>
</ScrollViewer>
Expand Down
237 changes: 174 additions & 63 deletions GenshinMusicPlayer/MainWindow.xaml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
using System.Threading;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Interop;
using System.Windows.Threading;
using WindowsInput;
using WindowsInput.Native;
Expand Down Expand Up @@ -125,7 +126,7 @@ public override string ToString() {
}

#endregion

#region Instruments

public class InstrumentCheckNotesResult
Expand Down Expand Up @@ -291,9 +292,81 @@ public partial class MainWindow : Window
private bool? isHigherFirst; // Null means ignore; true means higher semitone first; false means lower first.
private long noteMergingTime;

private bool isPlaying = false;

[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern bool SwitchToThisWindow(IntPtr hWnd, bool fAltTab);

[DllImport("User32.dll")]
public static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);

[DllImport("User32.dll")]
public static extern bool UnregisterHotKey(IntPtr hWnd, int id);

#region Hotkey

private HwndSource hwndSource;
private const int HOTKEY_ID = 1236841456;
private const int WM_HOTKEY = 0x0312;
private const uint VK_F12 = 0x7B;
private const uint MOD_CTRL_SHIFT = 0x0006;

protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
var helper = new WindowInteropHelper(this);
hwndSource = HwndSource.FromHwnd(helper.Handle);
hwndSource.AddHook(HwndHook);
RegisterHotKey();
}

protected override void OnClosed(EventArgs e)
{
hwndSource.RemoveHook(HwndHook);
hwndSource = null;
UnregisterHotKey();
base.OnClosed(e);
}

private void RegisterHotKey()
{
var helper = new WindowInteropHelper(this);
if (!RegisterHotKey(helper.Handle, HOTKEY_ID, MOD_CTRL_SHIFT, VK_F12))
{
MessageBox.Show("热键注册不成功，请检查是否有冲突！");
}
}

private void UnregisterHotKey()
{
var helper = new WindowInteropHelper(this);
UnregisterHotKey(helper.Handle, HOTKEY_ID);
}

private IntPtr HwndHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case WM_HOTKEY:
switch (wParam.ToInt32())
{
case HOTKEY_ID:
OnHotKeyPressed();
handled = true;
break;
}
break;
}
return IntPtr.Zero;
}

private void OnHotKeyPressed()
{
SwitchPlayingStatus();
}

#endregion

private void LoadMidiFileInfo(MidiFile file)
{
Note minNote = null;
Expand Down Expand Up @@ -405,8 +478,90 @@ private void UpdateComboBoxTone()
}
}

private void SwitchPlayingStatus()
{
if (!isPlaying)
{
ButtonStart.IsEnabled = false;

if (notes == null)
{
MessageBox.Show("请先加载 MIDI 文件！");
ButtonStart.IsEnabled = true;
return;
}
if (ComboBoxInstrument.SelectedIndex == -1)
{
MessageBox.Show("请选择乐器！");
ButtonStart.IsEnabled = true;
return;
}
if (ComboBoxTone.SelectedIndex == -1)
{
MessageBox.Show("请选择调性！");
ButtonStart.IsEnabled = true;
return;
}
if (RadioButtonNoteSemitoneNotAllowed.IsChecked == true)
{
var result = instrument.CheckNotes(ComboBoxTone.SelectedIndex, notes);
if (result.MissedCount > 0)
{
MessageBox.Show("有不允许的半音音符存在！");
ButtonStart.IsEnabled = true;
return;
}
}
if (RadioButtonNoteOutOfRangeNotAllowed.IsChecked == true)
{
var result = instrument.CheckNotes(ComboBoxTone.SelectedIndex, notes);
if (result.OutOfRangeCount > 0)
{
MessageBox.Show("有不允许的乐器范围外音符存在！");
ButtonStart.IsEnabled = true;
return;
}
}
if (!ulong.TryParse(TextBoxNoteMerging.Text, out ulong parseResult))
{
MessageBox.Show("音符合并演奏选项不是合法的正整数！");
ButtonStart.IsEnabled = true;
return;
}

// Disable load button here to avoid that we need to enable it again and again at the returns above.
ButtonLoadMidiFile.IsEnabled = false;

WrapPanelHistoryNotes.Children.Clear();
ProgressBarPlay.Value = 0;

tone = ComboBoxTone.SelectedIndex;
isHigherFirst = null;
if (RadioButtonNoteSemitoneIgnored.IsChecked != true)
{
isHigherFirst = RadioButtonNoteSemitoneHigher.IsChecked == true;
}
noteMergingTime = (long)parseResult;

Thread thread = new Thread(PlayMusic);
thread.IsBackground = true;
thread.Start();
}
else
{
isPlaying = false;
}
}

private void PlayMusic()
{
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
ButtonStart.Content = "停止演奏";
ButtonStart.IsEnabled = true;
isPlaying = true;
});

// Switch to Genshin window and wait...
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
Expand All @@ -420,21 +575,25 @@ private void PlayMusic()
break;
}
}
if (!isPlaying) goto STOP_PLAYING;
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
TextBoxCurrentNote.Text = "3 秒后开始……";
});
Thread.Sleep(1000);
if (!isPlaying) goto STOP_PLAYING;
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
TextBoxCurrentNote.Text = "2 秒后开始……";
});
Thread.Sleep(1000);
if (!isPlaying) goto STOP_PLAYING;
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
TextBoxCurrentNote.Text = "1 秒后开始……";
});
Thread.Sleep(1000);
if (!isPlaying) goto STOP_PLAYING;
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
TextBoxCurrentNote.Text = "";
Expand All @@ -445,6 +604,8 @@ private void PlayMusic()
int noteIdx = 0;
while (noteIdx < notes.Count)
{
if (!isPlaying) goto STOP_PLAYING;

var nextTimeToBePlayed = startTime + TimeSpan.FromMilliseconds(notes[noteIdx].Time);

// Merge notes
Expand All @@ -466,13 +627,15 @@ private void PlayMusic()
keysToPress.Add(noteToPlay.VirtualKeyCodePress.Value);
}
}
if (!isPlaying) goto STOP_PLAYING;

// Wait and press
var timeToSleep = nextTimeToBePlayed - DateTime.Now;
if (timeToSleep > TimeSpan.FromSeconds(0))
{
Thread.Sleep(timeToSleep);
}
if (!isPlaying) goto STOP_PLAYING;
if (keysToPress.Count > 0)
{
sim.Keyboard.KeyPress(keysToPress.ToArray());
Expand All @@ -484,6 +647,7 @@ private void PlayMusic()
ProgressBarPlay.Value = (nextTimeToBePlayed - startTime).TotalMilliseconds / maxNoteOffTime * 100;
TextBoxCurrentNote.Text = notesToPlay.Aggregate("", (text, noteToPlay) => text + " " + noteToPlay.ToString()).Substring(1);
WrapPanelHistoryNotes.Children.Add(new TextBox() { Text = TextBoxCurrentNote.Text, Margin = new Thickness(2, 2, 2, 2) });
ScrollViewerHistoryNotes.ScrollToBottom();
});

noteIdx = nextNoteIdx;
Expand All @@ -492,8 +656,15 @@ private void PlayMusic()
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
ProgressBarPlay.Value = 100;
ButtonLoadMidiFile.IsEnabled = true;
});
isPlaying = false;

STOP_PLAYING:;
Dispatcher.Invoke(DispatcherPriority.Normal, (ThreadStart)delegate ()
{
ButtonStart.Content = "开始演奏";
ButtonStart.IsEnabled = true;
ButtonLoadMidiFile.IsEnabled = true;
});
}

Expand Down Expand Up @@ -531,67 +702,7 @@ private void ComboBoxInstrument_SelectionChanged(object sender, SelectionChanged

private void ButtonStart_Click(object sender, RoutedEventArgs e)
{
ButtonStart.IsEnabled = false;
if (notes == null)
{
MessageBox.Show("请先加载 MIDI 文件！");
ButtonStart.IsEnabled = true;
return;
}
if (ComboBoxInstrument.SelectedIndex == -1)
{
MessageBox.Show("请选择乐器！");
ButtonStart.IsEnabled = true;
return;
}
if (ComboBoxTone.SelectedIndex == -1)
{
MessageBox.Show("请选择调性！");
ButtonStart.IsEnabled = true;
return;
}
if (RadioButtonNoteSemitoneNotAllowed.IsChecked == true)
{
var result = instrument.CheckNotes(ComboBoxTone.SelectedIndex, notes);
if (result.MissedCount > 0)
{
MessageBox.Show("有不允许的半音音符存在！");
ButtonStart.IsEnabled = true;
return;
}
}
if (RadioButtonNoteOutOfRangeNotAllowed.IsChecked == true)
{
var result = instrument.CheckNotes(ComboBoxTone.SelectedIndex, notes);
if (result.OutOfRangeCount > 0)
{
MessageBox.Show("有不允许的乐器范围外音符存在！");
ButtonStart.IsEnabled = true;
return;
}
}
if (!ulong.TryParse(TextBoxNoteMerging.Text, out ulong parseResult))
{
MessageBox.Show("音符合并演奏选项不是合法的正整数！");
ButtonStart.IsEnabled = true;
return;
}

ButtonLoadMidiFile.IsEnabled = false;
WrapPanelHistoryNotes.Children.Clear();
ProgressBarPlay.Value = 0;

tone = ComboBoxTone.SelectedIndex;
isHigherFirst = null;
if (RadioButtonNoteSemitoneIgnored.IsChecked != true)
{
isHigherFirst = RadioButtonNoteSemitoneHigher.IsChecked == true;
}
noteMergingTime = (long)parseResult;

Thread thread = new Thread(PlayMusic);
thread.IsBackground = true;
thread.Start();
SwitchPlayingStatus();
}

public MainWindow()
Expand Down
2 changes: 1 addition & 1 deletion GenshinMusicPlayer/Properties/AssemblyInfo.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -51,5 +51,5 @@
// 可以指定所有值，也可以使用以下所示的 "*" 预置版本号和修订号
// 方法是按如下所示使用“*”: :
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.2.*")]
[assembly: AssemblyVersion("1.3.*")]
//[assembly: AssemblyFileVersion("1.0.0.0")]

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