/// <summary>
/// Updates the overlay to the provided time.
/// </summary>
public void Update(JulianDate time)
{
if (m_textOverlay.Texture != null)
{
m_textOverlay.Texture.Dispose();
}
string text = string.Concat("Time: ",
time.ToTimeStandard(TimeStandard.CoordinatedUniversalTime).ToGregorianDate().ToString("MMM d, yyyy hh:mm:ss"),
" UTCG\n",
m_evaluator.Evaluate(time));
// measure the actual text and resize the overlays to match
Size textSize = Insight3DHelper.MeasureString(text, m_font);
m_textOverlay.Size = new ScreenOverlaySize(textSize.Width, textSize.Height);
m_overlay.Size = m_textOverlay.Size;
// Draw the text to a bitmap, create a texture and use that texture as the overlay.
using (var textBitmap = new Bitmap(textSize.Width, textSize.Height))
using (var graphics = Graphics.FromImage(textBitmap))
{
graphics.DrawString(text, m_font, Brushes.White, new PointF(0, 0));
m_textOverlay.Texture = SceneManager.Textures.FromBitmap(textBitmap);
}
}
/// <summary>
/// Update the number of satellites on the text panel
/// </summary>
private void SetText(int number)
{
if (m_textOverlay != null)
{
m_textPanel.Overlays.Remove(m_textOverlay);
m_textOverlay = null;
}
Font font = new Font("Arial", 10, FontStyle.Bold);
string text = "Satellites:\n" + number;
Size textSize = Insight3DHelper.MeasureString(text, font);
Bitmap textBitmap = new Bitmap(textSize.Width, textSize.Height);
Graphics gfx = Graphics.FromImage(textBitmap);
gfx.DrawString(text, font, Brushes.Black, new PointF(0, 0));
m_textOverlay = new TextureScreenOverlay(0, 0, textSize.Width, textSize.Height)
{
Origin = ScreenOverlayOrigin.Center,
Texture = SceneManager.Textures.FromBitmap(textBitmap)
};
m_textPanel.Overlays.Add(m_textOverlay);
}