DXImage GetImageForImageElement(ImageElement element)
{
DXImage result = null;
if (!_imageCache.TryGetValue(element, out result))
{
result = ToDispose(new DXImage(_device, _deviceContext));
result.Initialise(element.Bitmap);
_imageCache[element] = result;
}
return(result);
}
/// <summary>
/// Draw the overlay(s)
/// </summary>
public void Draw()
{
EnsureInitiliased();
Begin();
foreach (var overlay in Overlays)
{
foreach (var element in overlay.Elements)
{
if (element.Hidden)
{
continue;
}
var textElement = element as TextElement;
var imageElement = element as ImageElement;
if (textElement != null)
{
DXFont font = GetFontForTextElement(textElement);
if (font != null && !String.IsNullOrEmpty(textElement.Text))
{
_spriteEngine.DrawString(textElement.Location.X, textElement.Location.Y, textElement.Text, textElement.Color, font);
}
}
else if (imageElement != null)
{
DXImage image = GetImageForImageElement(imageElement);
if (image != null)
{
_spriteEngine.DrawImage(imageElement.Location.X, imageElement.Location.Y, imageElement.Scale, imageElement.Angle, imageElement.Tint, image);
}
}
}
}
End();
}
public void DrawImage(int x, int y, float scale, float angle, System.Drawing.Color?color, DXImage image)
{
Debug.Assert(_initialized);
Color4 blendFactor = new Color4(1.0f);
Color4 backupBlendFactor;
int backupMask;
using (var backupBlendState = _deviceContext.OutputMerger.GetBlendState(out backupBlendFactor, out backupMask))
{
_deviceContext.OutputMerger.SetBlendState(_transparentBS, blendFactor);
BeginBatch(image.GetSRV());
Draw(new Rectangle(x, y, (int)(scale * image.Width), (int)(scale * image.Height)), new Rectangle(0, 0, image.Width, image.Height), color.HasValue ? ToColor4(color.Value) : Color4.White, 1.0f, angle);
EndBatch();
_deviceContext.OutputMerger.SetBlendState(backupBlendState, backupBlendFactor, backupMask);
}
}