public void ToOverlay_ReturnsACompositeOverlay()
{
var overlayManager = new OverlayManager();
var overlay = new OverlayThatChangesInterpolationMode();
overlayManager.AddOverlay(overlay);
Overlay compositeOverlay = overlayManager.ToOverlay();
var compositeOverlayManager = new OverlayManager();
compositeOverlayManager.AddOverlay(compositeOverlay);
using (Bitmap bitmap = new Bitmap(32, 32))
compositeOverlayManager.PaintOverlaysOnImage(bitmap, 0, 0);
Assert.IsTrue(overlay.WasPainted);
}
/// <summary>
/// Paints overlays onto a bitmap.
/// </summary>
/// <param name="bitmap">The bitmap, not null.</param>
protected virtual void PaintOverlays(Bitmap bitmap)
{
overlayManager.PaintOverlaysOnImage(bitmap, FrameNumber, FramesPerSecond);
}
public void PaintOverlaysOnImage_WhenImageIsNull_Throws()
{
var overlayManager = new OverlayManager();
Assert.Throws<ArgumentNullException>(() => overlayManager.PaintOverlaysOnImage(null, 0, 0));
}
public void Paint()
{
var overlayManager = new OverlayManager();
var overlay = new CaptionOverlay()
{
Text = "This is some text.",
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Bottom
};
overlayManager.AddOverlay(overlay);
using (Bitmap bitmap = CreateBitmapWithBackground())
{
overlayManager.PaintOverlaysOnImage(bitmap, 0, 0);
TestLog.WriteLine("Image should contain 'This is some text.' centered at the bottom.");
TestLog.EmbedImage("Image", bitmap);
}
}
