/// <summary>
/// Paint using mouse drag
/// </summary>
/// <param name="sender"></param>
/// <param name="evt"></param>
private void SourcePictureBox_MouseMove_1(object sender, MouseEventArgs evt)
{
// check if we are in paint mode
if (!mouseDown)
{
return;
}
// add painted point
paintPoints.Add(new Point(evt.X, evt.Y));
// repaint painted line
SourcePictureBox.Invalidate();
}
/// <summary>
/// Start painting using mouse down
/// </summary>
/// <param name="sender"></param>
/// <param name="evt"></param>
private void SourcePictureBox_MouseDown_1(object sender, MouseEventArgs evt)
{
// clear the sample data
paintPoints.Clear();
sampledColors.Clear();
samplePoints.Clear();
// remove previously painted lines
SourcePictureBox.Invalidate();
// indicator that we are painting
mouseDown = true;
// add clicked point
paintPoints.Add(new Point(evt.X, evt.Y));
}