private void bindGraphics(IObject graphics)
{
if (graphics == null)
{
return;
}
graphics.Bind <IBoundingBoxComponent>(c => { _boundingBox = c; c.OnBoundingBoxesChanged.Subscribe(refresh); },
c => { _boundingBox = null; c.OnBoundingBoxesChanged.Unsubscribe(refresh); });
graphics.Bind <IScaleComponent>(c => { _scale = c; c.PropertyChanged += onScaleChanged; },
c => { _scale = null; c.PropertyChanged -= onScaleChanged; });
}
public void Prepare(IObject obj, IDrawableInfoComponent drawable, IViewport viewport)
{
if (!TextBackgroundVisible && !TextVisible)
{
return;
}
if (_lastObject != obj)
{
IBlockingEvent boxChangeEvent = obj.GetComponent <IBoundingBoxComponent>()?.OnBoundingBoxesChanged ?? new AGSEvent();
AGSBoundingBoxComponent box = new AGSBoundingBoxComponent(_settings, _viewport,
_labelBoundingBoxFakeBuilder, _state, _events, boxChangeEvent);
obj.RemoveComponent <IBoundingBoxComponent>();
obj.AddComponent <IBoundingBoxComponent>(box);
_lastObject = obj;
foreach (var binding in _bindings)
{
binding?.Unbind();
}
var scaleBinding = obj.Bind <IScaleComponent>(c => c.PropertyChanged += onScalePropertyChanged, c => c.PropertyChanged -= onScalePropertyChanged);
var matrixBinding = obj.Bind <IModelMatrixComponent>(c => c.OnMatrixChanged.Subscribe(onMatrixChanged), c => c.OnMatrixChanged.Unsubscribe(onMatrixChanged));
var drawableBinding = obj.Bind <IDrawableInfoComponent>(c => c.PropertyChanged += onDrawablePropertyChanged, c => c.PropertyChanged -= onDrawablePropertyChanged);
onBoundingBoxShouldChange();
_bindings.Clear();
_bindings.Add(scaleBinding);
_bindings.Add(matrixBinding);
_bindings.Add(drawableBinding);
}
_glTextHitTest = _glTextHitTest ?? new GLText(_graphics, _messagePump, _fonts, _bitmapPool, false);
_glTextRender = _glTextRender ?? new GLText(_graphics, _messagePump, _fonts, _bitmapPool, true);
updateBoundingBoxes(obj, drawable, viewport);
if (_usedLabelBoundingBoxes != null)
{
_labelBoundingBoxFakeBuilder.BoundingBoxes = _usedLabelBoundingBoxes;
}
_bgRenderer.Prepare(obj, drawable, viewport);
Width = _usedLabelBoundingBoxes == null ? 1f : _usedLabelBoundingBoxes.RenderBox.Width;
Height = _usedLabelBoundingBoxes == null ? 1f : _usedLabelBoundingBoxes.RenderBox.Height;
}