protected override void OnResize(EventArgs e)
{
base.OnResize(e);
Rectangle clientRectangle = base.ClientRectangle;
if (clientRectangle.Width > 0)
{
clientRectangle = base.ClientRectangle;
if (clientRectangle.Height > 0)
{
this._buffer.Dispose();
this._graphics.Dispose();
this._bkgBuffer.Dispose();
clientRectangle = base.ClientRectangle;
int width = clientRectangle.Width;
clientRectangle = base.ClientRectangle;
this._buffer = new Bitmap(width, clientRectangle.Height, PixelFormat.Format32bppPArgb);
this._graphics = Graphics.FromImage(this._buffer);
ChannelAnalyzer.ConfigureGraphics(this._graphics);
clientRectangle = base.ClientRectangle;
int width2 = clientRectangle.Width;
clientRectangle = base.ClientRectangle;
this._bkgBuffer = new Bitmap(width2, clientRectangle.Height, PixelFormat.Format32bppPArgb);
this._drawBackgroundNeeded = true;
this.Perform(this._channelArray);
}
}
}
private void DrawBackground()
{
using (SolidBrush solidBrush = new SolidBrush(Color.Silver))
{
using (Pen pen = new Pen(Color.FromArgb(80, 80, 80)))
{
using (new Pen(Color.DarkGray))
{
using (Font font = new Font("Arial", 8f))
{
using (Graphics graphics = Graphics.FromImage(this._bkgBuffer))
{
ChannelAnalyzer.ConfigureGraphics(graphics);
graphics.Clear(Color.Black);
pen.DashStyle = DashStyle.Dash;
int num = 20;
Rectangle clientRectangle = base.ClientRectangle;
int num2 = (clientRectangle.Height - 4) / num;
for (int i = 1; i <= num2; i++)
{
Graphics graphics2 = graphics;
Pen pen2 = pen;
clientRectangle = base.ClientRectangle;
int y = clientRectangle.Height - 2 - i * num;
clientRectangle = base.ClientRectangle;
int x = clientRectangle.Width - 2;
clientRectangle = base.ClientRectangle;
graphics2.DrawLine(pen2, 2, y, x, clientRectangle.Height - 2 - i * num);
}
for (int j = 1; j <= num2; j++)
{
string text = (j * num / 2 - 10).ToString();
SizeF sizeF = graphics.MeasureString(text, font);
float width = sizeF.Width;
float height = sizeF.Height;
Graphics graphics3 = graphics;
string s = text;
Font font2 = font;
SolidBrush brush = solidBrush;
clientRectangle = base.ClientRectangle;
graphics3.DrawString(s, font2, brush, 4f, (float)(clientRectangle.Height - 2 - j * num) - height + 1f);
}
}
}
}
}
}
}
protected override void OnPaint(PaintEventArgs e)
{
ChannelAnalyzer.ConfigureGraphics(e.Graphics);
e.Graphics.DrawImageUnscaled(this._buffer, 0, 0);
}