/// <summary>
/// Draw the overlay(s)
/// </summary>
public void Draw()
{
this.EnsureInitiliazed();
this.Begin();
dynamic element = null;
TextElement textElement = element as TextElement;
ImageElement imageElement = element as ImageElement;
if (textElement != null)
{
DXFont font = this.GetFontForTextElement(textElement);
if (font != null && !String.IsNullOrEmpty(textElement.Text))
{
this.SpriteEngine.DrawString(textElement.Location.X, textElement.Location.Y, textElement.Text, textElement.Color, font);
}
}
else if (imageElement != null)
{
DXImage image = this.GetImageForImageElement(imageElement);
if (image != null)
{
this.SpriteEngine.DrawImage(imageElement.Location.X, imageElement.Location.Y, imageElement.Scale, imageElement.Angle, System.Drawing.Color.White, image);
}
}
this.End();
}
private DXImage GetImageForImageElement(ImageElement element)
{
DXImage result = null;
if (!this.ImageCache.TryGetValue(element, out result))
{
result = new DXImage(this.Device, this.DeviceContext);
result.Initialize(element.Bitmap);
this.ImageCache[element] = result;
}
return(result);
}
public void DrawImage(Int32 x, Int32 y, Single scale, Single angle, System.Drawing.Color?color, DXImage image)
{
Debug.Assert(this.Initialized, "Ensure initalized");
RawColor4 blendFactor = new RawColor4(1.0f, 1.0f, 1.0f, 1.0f);
RawColor4 backupBlendFactor;
Int32 backupMask;
using (BlendState backupBlendState = DeviceContext.OutputMerger.GetBlendState(out backupBlendFactor, out backupMask))
{
this.DeviceContext.OutputMerger.SetBlendState(this.TransparentBlendState, blendFactor);
this.BeginBatch(image.GetSRV());
this.Draw(new RawRectangle(x, y, (Int32)(scale * image.Width), (Int32)(scale * image.Height)), new RawRectangle(0, 0, image.Width, image.Height), color.HasValue ? ToColor4(color.Value) : new RawColor4(), 1.0f, angle);
this.EndBatch();
this.DeviceContext.OutputMerger.SetBlendState(backupBlendState, backupBlendFactor, backupMask);
}
}
