public void AddElementRenderer(string typeName, Type type)
{
if (!elementRenderers.ContainsKey(typeName))
{
LayoutElementRenderer elementRenderer = (LayoutElementRenderer)Activator.CreateInstance(type);
elementRenderers.Add(typeName, elementRenderer);
}
else
{
throw new Exception(string.Format("Element render already registered for type [{0}]", typeName));
}
}
private void DrawElements(Graphics graphics)
{
LayoutProperties layoutProperties = new LayoutProperties();
layoutProperties.DesignAreaLocation = DesignAreaLocation;
layoutProperties.DesignAreaSize = DesignAreaSize;
layoutProperties.ViewportLocation = ViewportLocation;
layoutProperties.ViewportSize = ViewportSize;
layoutProperties.ZoomRatio = ZoomRatio;
foreach (LayoutElement element in Layout.Elements)
{
LayoutElementRenderer elementRenderer = GetElementRendererForElementType(element.TypeName);
if (elementRenderer != null)
{
elementRenderer.Draw(element, graphics, layoutProperties);
if (IsElementInSelection(element))
{
TransformHandleType transformHandleType = TransformHandleType.All;
VisualLayoutElement visualLayoutElement = element as VisualLayoutElement;
if (visualLayoutElement != null && !visualLayoutElement.Rotatable)
{
if (!KeyboardHelper.IsShiftKeyPressed)
{
transformHandleType = TransformHandleType.All;
}
else
{
transformHandleType = TransformHandleType.OnlyCorners;
}
}
DesignerHelper.DrawTransformHandles(graphics, element, layoutProperties, transformHandleType);
}
}
else
{
throw new Exception("Element renderer for element type not found!");
}
}
}
