measuring text on scaled canvas

Question

I\'ve been struggling with text measuring and scaled canvases.

When the canvas is unscaled, getTextBounds and measureText deliver accurate results. However, when the ca

Answer 1

Using Mono for Android I had to use display metrics as shown here:

public override System.Drawing.SizeF MeasureString(MyFont f, string text)
{
  Rect r = new Rect();

  f.DrawingFont.GetTextBounds(text, 0, text.Length, r);

  //Manual scaling using DisplayMetrics due to Android
  //issues for compatibility with older versions
  Android.Util.DisplayMetrics metrics = new Android.Util.DisplayMetrics();
  GetDisplay.GetMetrics(metrics);

  return new System.Drawing.SizeF(r.Width(), r.Height() * metrics.Density);
}

Where f.DrawingFont is an Androdid.Text.TextPaint GetDisplay is:

private Display GetDisplay()
{
  return this.GetSystemService(Android.Content.Context.WindowService).JavaCast().DefaultDisplay;
}

And the same method in Java is:

private Display getDisplay() {
    return ((WindowManager) getContext().getSystemService(
            Context.WINDOW_SERVICE)).getDefaultDisplay();
}