/// <summary>
/// Draws black in the areas outside the view.
/// Assumes that controlBounds is starting at (0, 0) in upper left corner.
/// </summary>
/// <param name="context">A context to perform drawing.</param>
/// <param name="controlBounds">Bounds of the control.</param>
/// <param name="view">The bounds of the view.</param>
public static void Draw(Graphics context, Rectangle controlBounds, RectangleD view)
{
context.Clear(Color.Black);
context.FillRectangle(Brushes.White, (float)view.X, (float)view.Y, (float)view.Width, (float)view.Height);
}
public static Matrix ViewToBufferMatrix(Rectangle controlBounds,
RectangleD view,
double settingsWidth,
double settingsHeight)
{
var m = new Matrix ();
m.Scale ((float)(view.Width / settingsWidth), (float)(view.Height / settingsHeight));
return m;
}
public static Matrix ViewToControlMatrix(Rectangle controlBounds,
RectangleD view,
double settingsWidth,
double settingsHeight)
{
var m = new Matrix ();
m.Translate ((float)(view.X - controlBounds.X), (float)(view.Y - controlBounds.Y));
m.Scale ((float)(view.Width / settingsWidth), (float)(view.Height / settingsHeight));
return m;
}
