/// <summary>
/// Constructs the menustrip.
/// </summary>
/// <param name="parent">The panel that the menustrip is in.</param>
public PanelMenuStrip(AudioPanel parent)
{
this.window = parent;
this.InitFile();
this.InitEdit();
this.InitTools();
InfoLabel = new ToolStripLabel();
InfoLabel.Margin = new Padding(50, 0, 0, 0);
InfoLabel.ForeColor = Color.SpringGreen;
this.Items.Add(InfoLabel);
this.BackColor = ColorSettings.BLACKGRAY;
this.ForeColor = ColorSettings.GRAY;
this.Name = "PanelMenuStrip";
this.Margin = new Padding(0);
// Setup default selected windowing function
this.WindowFunc = WindowFunction.RectangularWindow;
this.ResumeLayout(false);
this.PerformLayout();
this.RenderMode = ToolStripRenderMode.Professional;
this.Renderer = new MenuToolStripRenderer();
}
/// <summary>
/// Records audio.
/// </summary>
/// <param name="panel">The panel to record data into.</param>
public void RecordAudio(AudioPanel panel)
{
recordData = new IntPtr();
SetData(recordData, 0);
this.RecordPanel = panel;
this.RecordPanel.Header = panel.Header;
this.SetWaveFormat(this.RecordPanel.Header);
Record();
}
/// <summary>
/// Constructs the channel.
/// </summary>
/// <param name="title">Title to display above the channel.</param>
/// <param name="size">Size of the channel.</param>
/// <param name="parent">Panel that holds the channel.</param>
public Channel(String title, Size size, AudioPanel parent)
{
this.Chart = new Chart();
this.ChartArea = new ChartArea();
this.parent = parent;
this.InitChart(title, size);
this.InitSeries();
// Adds event handlers to the chart
this.Chart.KeyDown += new KeyEventHandler(this.KeyDown);
this.Chart.KeyUp += new KeyEventHandler(this.KeyUp);
this.Chart.MouseEnter += new EventHandler(this.Focus);
this.Chart.MouseWheel += new MouseEventHandler(this.Zoom);
}
/// <summary>
/// Creates a new audio panel and starts an audio recording.
/// </summary>
/// <param name="sender">Unused.</param>
/// <param name="e">Unused.</param>
private void StartRecord(object sender, EventArgs e)
{
this.record.Visible = false;
this.stopRecord.Visible = true;
WaveParser parser = new WaveParser();
AudioPanel newPanel = this.NewAudioPanel();
if (this.window.IsScrollable)
{
int val = this.window.VScrollBar.Maximum - this.window.VScrollBar.Value;
this.window.VScrollBar.Value = this.window.VScrollBar.Maximum;
this.window.MainContainer.Top = this.window.MainContainer.Location.Y - val;
}
newPanel.Header = parser.CreateHeader(this.window.SampleRate, this.window.BitRate);
newPanel.MenuStrip.InfoLabel.Text = newPanel.Header.SampleRate + " Sample rate" + " | " + newPanel.Header.BitsPerSample + " Bit rate";
recorder.RecordAudio(newPanel);
}
/// <summary>
/// Deletes the selected range in the time domain. If there is two channels, it will delete the selected range in both.
/// </summary>
/// <param name="window">The audio panel that the time domain is in.</param>
/// <param name="dualChannel">Whether the audio stream has two channels or not.</param>
public static void Delete(AudioPanel window, bool dualChannel)
{
// Gets the range of the selection
int startPos = (int)Math.Min(window.LTimeChannel.ChartArea.CursorX.SelectionStart, window.LTimeChannel.ChartArea.CursorX.SelectionEnd);
int endPos = (int)Math.Max(window.LTimeChannel.ChartArea.CursorX.SelectionStart, window.LTimeChannel.ChartArea.CursorX.SelectionEnd);
// Maps the position of the start and end positions of the selection to indexes in the data
if (endPos != startPos && window.LTimeChannel.Series.Points.Count != 0)
{
int startSample = (int)window.LTimeChannel.Series.Points[startPos].XValue;
int endSample;
if (endPos < window.LTimeChannel.Series.Points.Count)
{
endSample = (int)window.LTimeChannel.Series.Points[endPos].XValue;
}
else
{
endSample = (int)window.LTimeChannel.Series.Points[window.LTimeChannel.Series.Points.Count - 1].XValue;
}
// Sets the cursor back to where the selection started
window.LTimeChannel.ChartArea.CursorX.SelectionStart = startPos;
window.LTimeChannel.ChartArea.CursorX.SelectionEnd = startPos;
window.RTimeChannel.ChartArea.CursorX.SelectionStart = startPos;
window.RTimeChannel.ChartArea.CursorX.SelectionEnd = startPos;
// Removes the range in the data
window.LChannel.RemoveRange(startSample, endSample - startSample);
if (dualChannel)
{
window.RChannel.RemoveRange(startSample, endSample - startSample);
}
if (window.LChannel.Count <= 1)
{
window.LChannel.RemoveAt(0);
if (dualChannel)
{
window.RChannel.RemoveAt(0);
}
}
}
}
/// <summary>
/// Creates a new audio panel that holds its own time and frequency domain.
/// </summary>
/// <returns>The newly created audio panel.</returns>
public AudioPanel NewAudioPanel()
{
AudioPanel newPanel = new AudioPanel(new Size(this.window.MainContainer.Width, AudioPanel.CHANNEL_HEIGHT + AudioPanel.BUTTON_HEIGHT), this.window);
this.window.MainContainer.Controls.Add(newPanel.Panel);
this.window.MainContainer.Height += newPanel.Panel.Height;
// Initializes the scrollbar if needed and is not already initialized
if (this.window.MainContainer.Height > this.window.ClientSize.Height && !this.window.IsScrollable)
{
this.window.InitScrollBar();
}
// Increases the scrollbar range if it is available
if (this.window.IsScrollable)
{
this.window.VScrollBar.Maximum = this.window.MainContainer.Height - this.Parent.ClientSize.Height + this.Height;
}
// Adds the panel to the programs linked list
this.window.AudioPanels.AddLast(newPanel);
return(newPanel);
}
/// <summary>
/// Copies the selected range in the time domain. If there is two channels, it will copy the selected range in both.
/// </summary>
/// <param name="window">The audio panel that the time domain is in.</param>
/// <param name="dualChannel">Whether the audio stream has two channels or not.</param>
public static void Copy(AudioPanel window, bool dualChannel)
{
List <short> lData = new List <short>();
List <short> rData = new List <short>();
ClipboardData data = new ClipboardData();
// Gets the range of the selection
int startPos = (int)Math.Min(window.LTimeChannel.ChartArea.CursorX.SelectionStart, window.LTimeChannel.ChartArea.CursorX.SelectionEnd);
int endPos = (int)Math.Max(window.LTimeChannel.ChartArea.CursorX.SelectionStart, window.LTimeChannel.ChartArea.CursorX.SelectionEnd);
// Maps the position of the start and end positions of the selection to indexes in the data
if (endPos != startPos && window.LTimeChannel.Series.Points.Count != 0)
{
int startSample = (int)window.LTimeChannel.Series.Points[startPos].XValue;
int endSample;
if (endPos < window.LTimeChannel.Series.Points.Count)
{
endSample = (int)window.LTimeChannel.Series.Points[endPos].XValue;
}
else
{
endSample = (int)window.LTimeChannel.Series.Points[window.LTimeChannel.Series.Points.Count - 1].XValue;
}
// Copies the data to a temporary object
data.LChannel = window.LChannel.GetRange(startSample, endSample - startSample);
if (dualChannel)
{
data.RChannel = window.RChannel.GetRange(startSample, endSample - startSample);
}
data.Header = window.Header;
// Adds the copied object to the clipboard
Clipboard.SetData("AudioPanel", data);
}
}
/// <summary>
/// Pastes the copied data from the clipboard to the selected position in the time domain and upsamples the copied data.
/// If the copied data has one channel, and the window to paste in has two channels, it will paste the single channel into both channels.
/// </summary>
/// <param name="window">The audio panel that the time domain is in.</param>
/// <param name="copyData">The copied data on the clipboard.</param>
/// <param name="dualChannel">Whether the audio stream has two channels or not.</param>
public static void UpSamplePaste(AudioPanel window, ClipboardData copyData, bool dualChannel)
{
// Gets the position of the selection
int cursorPos = (int)window.LTimeChannel.ChartArea.CursorX.Position;
// Maps the selected position to and index in the data
int pastePos;
if (cursorPos < window.LTimeChannel.Series.Points.Count)
{
pastePos = (int)window.LTimeChannel.Series.Points[cursorPos].XValue;
}
else
{
pastePos = (int)window.LTimeChannel.Series.Points[window.LTimeChannel.Series.Points.Count - 1].XValue;
}
double freq = (double)copyData.Header.SampleRate / 2;
List <Thread> IDFTThreads = new List <Thread>();
// Creates the filter and IDFT threads and starts them
List <ComplexNumber> filter = window.LFreqChannel.CreateFilter(copyData.LChannel.Count, freq, window.Header);
List <List <short> > filterSamples = window.LFreqChannel.CreateIDFTThreads(filter, out IDFTThreads);
for (int i = 0; i < IDFTThreads.Count; i++)
{
IDFTThreads[i].Start();
}
// Check if the copied data is a different bitrate than the channel to pate in
bool bitOffset = window.Header.BitsPerSample == 8;
BackgroundWorker lbgw = new BackgroundWorker();
lbgw.DoWork += delegate {
// Wait for IDFT threads to finish
for (int i = 0; i < IDFTThreads.Count; i++)
{
IDFTThreads[i].Join();
}
// Combine the IDFT data together
List <short> filterData = new List <short>();
for (int i = 0; i < IDFTThreads.Count; i++)
{
filterData.AddRange(filterSamples[i]);
}
// Convert bit rate if needed and upsample
List <short> upSampled;
if (copyData.Header.BitsPerSample > window.Header.BitsPerSample)
{
upSampled = window.LTimeChannel.UpSample(copyData.LChannel, window.Header.SampleRate, copyData.Header.SampleRate, BitMapper.To8Bit);
}
else if (copyData.Header.BitsPerSample < window.Header.BitsPerSample)
{
upSampled = window.LTimeChannel.UpSample(copyData.LChannel, window.Header.SampleRate, copyData.Header.SampleRate, BitMapper.To16Bit);
}
else
{
upSampled = window.LTimeChannel.UpSample(copyData.LChannel, window.Header.SampleRate, copyData.Header.SampleRate, null);
}
// Creates and starts threads to convolve the data
List <short> samples = new List <short>(upSampled);
List <Thread> convolveThreads = window.LTimeChannel.CreateConvolutionThreads(filterData, upSampled, samples, bitOffset);
for (int i = 0; i < convolveThreads.Count; i++)
{
convolveThreads[i].Start();
}
// Wait for convolution to finish on all threads
for (int i = 0; i < convolveThreads.Count; i++)
{
convolveThreads[i].Join();
}
// Paste the data at the selected position
window.LChannel.InsertRange(pastePos, samples);
if (dualChannel && copyData.RChannel == null)
{
window.RChannel.InsertRange(pastePos, samples);
}
// Reload the data in the time domain charts
window.LTimeChannel.Chart.Invoke(new MethodInvoker(() => {
window.LTimeChannel.LoadData(window.LChannel);
window.LTimeChannel.Chart.Refresh();
}));
if (dualChannel && copyData.RChannel == null)
{
window.RTimeChannel.Chart.Invoke(new MethodInvoker(() => {
window.RTimeChannel.LoadData(window.RChannel);
window.RTimeChannel.Chart.Refresh();
}));
}
};
lbgw.RunWorkerAsync();
// Paste right channel copy data in right channel domain if it exists
if (dualChannel && copyData.RChannel != null)
{
BackgroundWorker rbgw = new BackgroundWorker();
rbgw.DoWork += delegate {
// Wait for IDFT threads to finish
for (int i = 0; i < IDFTThreads.Count; i++)
{
IDFTThreads[i].Join();
}
// Combine the IDFT data together
List <short> filterData = new List <short>();
for (int i = 0; i < IDFTThreads.Count; i++)
{
filterData.AddRange(filterSamples[i]);
}
// Convert bit rate if needed and upsample
List <short> upSampled;
if (copyData.Header.BitsPerSample > window.Header.BitsPerSample)
{
upSampled = window.RTimeChannel.UpSample(copyData.RChannel, window.Header.SampleRate, copyData.Header.SampleRate, BitMapper.To8Bit);
}
else if (copyData.Header.BitsPerSample < window.Header.BitsPerSample)
{
upSampled = window.RTimeChannel.UpSample(copyData.RChannel, window.Header.SampleRate, copyData.Header.SampleRate, BitMapper.To16Bit);
}
else
{
upSampled = window.RTimeChannel.UpSample(copyData.RChannel, window.Header.SampleRate, copyData.Header.SampleRate, null);
}
// Creates and starts threads to convolve the data
List <short> samples = new List <short>(upSampled);
List <Thread> convolveThreads = window.LTimeChannel.CreateConvolutionThreads(filterData, upSampled, samples, bitOffset);
for (int i = 0; i < convolveThreads.Count; i++)
{
convolveThreads[i].Start();
}
// Wait for convolution to finish on all threads
for (int i = 0; i < convolveThreads.Count; i++)
{
convolveThreads[i].Join();
}
// Paste the data at the selected position
window.RChannel.InsertRange(pastePos, samples);
// Reload the data in the time domain charts
window.RTimeChannel.Chart.Invoke(new MethodInvoker(() => {
window.RTimeChannel.LoadData(window.RChannel);
window.RTimeChannel.Chart.Refresh();
}));
};
rbgw.RunWorkerAsync();
}
}
/// <summary>
/// Pastes the copied data from the clipboard to the selected position in the time domain.
/// If the copied data has two channels, it will paste the right channel to the right channel if the window to paste in has a right channel.
/// If the copied data has one channel, and the window to paste in has two channels, it will paste the single channel into both channels.
/// </summary>
/// <param name="window">The audio panel that the time domain is in.</param>
/// <param name="copyData">The copied data on the clipboard.</param>
/// <param name="dualChannel">Whether the audio stream has two channels or not.</param>
public static void Paste(AudioPanel window, ClipboardData copyData, bool dualChannel)
{
// Paste to the selected position if the time domain is not empty
if (window.LChannel != null)
{
// Gets the position of the selection
int cursorPos = (int)window.LTimeChannel.ChartArea.CursorX.Position;
// Maps the selected position to and index in the data
int pastePos;
if (cursorPos < window.LTimeChannel.Series.Points.Count)
{
pastePos = (int)window.LTimeChannel.Series.Points[cursorPos].XValue;
}
else
{
pastePos = (int)window.LTimeChannel.Series.Points[window.LTimeChannel.Series.Points.Count - 1].XValue;
}
List <short> data = new List <short>(copyData.LChannel);
// Converts bit rate if needed
if (copyData.Header.BitsPerSample > window.Header.BitsPerSample)
{
for (int i = 0; i < data.Count; i++)
{
data[i] = BitMapper.To8Bit(data[i]);
}
}
else if (copyData.Header.BitsPerSample < window.Header.BitsPerSample)
{
for (int i = 0; i < data.Count; i++)
{
data[i] = BitMapper.To16Bit(data[i]);
}
}
// Inserts the data at the selected position
window.LChannel.InsertRange(pastePos, data);
if (dualChannel)
{
if (copyData.RChannel != null)
{
data = new List <short>(copyData.RChannel);
if (copyData.Header.BitsPerSample > window.Header.BitsPerSample)
{
for (int i = 0; i < data.Count; i++)
{
data[i] = BitMapper.To8Bit(data[i]);
}
}
else if (copyData.Header.BitsPerSample < window.Header.BitsPerSample)
{
for (int i = 0; i < data.Count; i++)
{
data[i] = BitMapper.To16Bit(data[i]);
}
}
}
window.RChannel.InsertRange(pastePos, data);
}
// Create a new header and paste the data if the time domain is empty
}
else
{
// Creates the new RIFF header for the data
RIFFHeader hdr = copyData.Header;
// Copies the data to the channels
window.LChannel = copyData.LChannel;
if (copyData.RChannel != null)
{
if (!dualChannel)
{
window.AddRChannel();
}
window.RChannel = copyData.RChannel;
}
else
{
if (dualChannel)
{
window.RChannel = copyData.LChannel;
hdr.Channels = 2;
}
}
window.RawData = window.DataToBytes();
window.MenuStrip.InfoLabel.Text = hdr.SampleRate + " Sample rate" + " | " + hdr.BitsPerSample + " Bit rate";
//Assigns new header to the window
hdr.SubChunkSize = window.RawData.Count;
window.Header = hdr;
}
}
/// <summary>
/// Constructs the frequency channel.
/// </summary>
/// <param name="title">Title to display above the channel.</param>
/// <param name="size">Size of the channel.</param>
/// <param name="parent">Panel that holds the channel.</param>
public FreqChannel(String title, Size size, AudioPanel parent) : base(title, size, parent)
{
this.InitFreqChart();
}
/// <summary>
/// Creates a new audio panel and opens a wave file in it.
/// </summary>
/// <param name="sender">Unused/</param>
/// <param name="e">Unused.</param>
private void OpenFile(object sender, EventArgs e)
{
AudioPanel newPanel = NewAudioPanel();
newPanel.MenuStrip.OpenFile(null, EventArgs.Empty);
}