Use double buffering

Author: neuwcodebox

WaveViewer/Form_Main.Designer.cs

@@ -16,6 +16,11 @@ public Form_Main()
  {
  InitializeComponent();
 
+ this.DoubleBuffered = true;
+ this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
+ this.SetStyle(ControlStyles.UserPaint, true);
+ this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
+
 
  var argDict = ParseCmdLineArgs();
 
@@ -50,9 +55,9 @@ public Form_Main()
  private Graph m_graph = null;
  private Seismograph m_worker = null;
 
- private void panel_wave_Paint(object sender, PaintEventArgs e)
+ private void Form_Main_Paint(object sender, PaintEventArgs e)
  {
- var size = this.panel_wave.Size;
+ var size = this.ClientSize;
 
  if (m_graph == null || m_worker == null)
  {
@@ -62,13 +67,20 @@ private void panel_wave_Paint(object sender, PaintEventArgs e)
  }
  else
  {
- m_graph.Draw(e.Graphics, size);
+ using (var bufferG = BufferedGraphicsManager.Current.Allocate(e.Graphics, this.ClientRectangle))
+ {
+ var g = bufferG.Graphics;
+
+ m_graph.Draw(g, size);
+
+ bufferG.Render(e.Graphics);
+ }
  }
  }
 
  private void timer_update_Tick(object sender, EventArgs e)
  {
- this.panel_wave.Invalidate();
+ this.Invalidate();
  }
 
  private void Worker_WhenDataReceived(List<double> waveform)

WaveViewer/Form_Main.cs

@@ -72,15 +72,15 @@ public void Clear()
 
  public void Draw(Graphics g, Size size)
  {
+ g.Clear(Color.White);
+
+
  if (m_waveform.Count <= 0)
  {
  return;
  }
 
 
- g.Clear(Color.White);
-
-
  int[] copyWaveform = null;
 
  lock (m_lockWaveform)