/// <summary>
/// Renders the scene to the given render target.
/// Clears the scene, then draws all shapes
/// </summary>
/// <param name="renderTarget">The render target.</param>
private void RenderScene(RenderTarget renderTarget)
{
Cursor c = null;
if (renderMode != RenderModes.HwndRenderTarget)
{
c = Cursor;
Cursor = Cursors.WaitCursor;
}
renderTarget.BeginDraw();
renderTarget.Clear(BackColorF);
for (int i = 0; i < drawingShapes.Count; i++)
{
DrawingShape shape = drawingShapes[i];
//tag with shape index for debugging
renderTarget.Tags = new Tags((ulong)i, 0);
shape.Draw(renderTarget);
}
Tags tags;
ErrorCode errorCode;
if (!renderTarget.TryEndDraw(out tags, out errorCode))
{
Debug.WriteLine(String.Format("Failed EndDraw. Error: {0}, tag1: {1}, tag2: {2}, shape[{1}]: {3}",
errorCode, tags.Tag1, tags.Tag2,
(int)tags.Tag1 < drawingShapes.Count ? drawingShapes[(int)tags.Tag1].ToString() : "<none>"));
}
if (renderMode != RenderModes.HwndRenderTarget)
{
Cursor = c;
}
}
/// <summary>
/// Adds a shape to compatible render target - avoids the need to redraw all shapes.
/// </summary>
/// <param name="shape">The shape.</param>
private void AddToCompatibleRenderTarget(DrawingShape shape)
{
lock (renderSyncObject)
{
bitmapRenderTarget.BeginDraw();
shape.Draw(bitmapRenderTarget);
bitmapRenderTarget.EndDraw();
}
}
/// <summary>
/// Adds a shape to compatible render target - avoids the need to redraw all shapes.
/// </summary>
/// <param name="shape">The shape.</param>
private void AddToCompatibleRenderTarget(DrawingShape shape)
{
lock (renderSyncObject)
{
bitmapRenderTarget.BeginDraw();
shape.Draw(bitmapRenderTarget);
bitmapRenderTarget.EndDraw();
}
}