/// <summary>
/// Sets the bounds of the item</summary>
/// <param name="item">Item</param>
/// <param name="bounds">New item bounds, in world coordinates</param>
/// <param name="specified">Which parts of bounds to set</param>
void ILayoutContext.SetBounds(object item, Rectangle bounds, BoundsSpecified specified)
{
var element = item.As <Element>();
// Currently we have CanvasAdapter and D2dGridAdapter attached to the circuit adaptable control for layout constraints.
// When setting a dragging module’s bounds and the module belongs to a group, we are either moving around the module
// inside its owner, or moving out of its current owner. In either case, it seems more desirable to skip these 2
// layout constrains: the CanvasAdapter by default have (0,0) for Location which will clip away negative bounds,
// but negative location will be generated if we drag a sub-element to the left or above the group that owns it;
// D2dGridAdapter seems not needed to layout sub-elements inside its owner as the layout occurs at a lower level.
bool applyConstraints = !IsDraggingSubNode(element);
if (applyConstraints)
{
bounds = ConstrainBounds(bounds, specified);
}
if (element != null)
{
element.Bounds = WinFormsUtil.UpdateBounds(element.Bounds, bounds, specified);
}
else
{
var annotation = item.As <Annotation>();
if (annotation != null)
{
annotation.Bounds = WinFormsUtil.UpdateBounds(annotation.Bounds, bounds, specified);
}
}
}
void ILayoutContext.SetBounds(object item, Rectangle bounds, BoundsSpecified specified)
{
var element = item.As <HyperGraph.Node>();
if (element != null)
{
Rectangle workingBounds;
var bs = GetNodeBounds(element, out workingBounds);
if (bs == BoundsSpecified.Location || bs == BoundsSpecified.All)
{
workingBounds = WinFormsUtil.UpdateBounds(workingBounds, bounds, specified);
element.Location = workingBounds.Location;
}
}
}
/// <summary>
/// Sets the bounds of the item</summary>
/// <param name="item">Item</param>
/// <param name="bounds">New item bounds, in world coordinates</param>
/// <param name="specified">Which parts of bounds to set</param>
void ILayoutContext.SetBounds(object item, Rectangle bounds, BoundsSpecified specified)
{
bounds = ConstrainBounds(bounds, specified);
var state = item.As <State>();
if (state != null)
{
state.Bounds = WinFormsUtil.UpdateBounds(state.Bounds, bounds, specified);
}
else
{
var annotation = item.As <Annotation>();
if (annotation != null)
{
annotation.Bounds = WinFormsUtil.UpdateBounds(annotation.Bounds, bounds, specified);
}
}
}
public void TestUpdateBounds()
{
var original = new Rectangle(1, 2, 3, 4);
var replacement = new Rectangle(5, 6, 7, 8);
Rectangle updated;
updated = WinFormsUtil.UpdateBounds(original, replacement, BoundsSpecified.All);
Assert.True(updated == replacement);
updated = WinFormsUtil.UpdateBounds(original, replacement, BoundsSpecified.Location);
Assert.True(updated.Location == replacement.Location);
Assert.True(updated.Size == original.Size);
updated = WinFormsUtil.UpdateBounds(original, replacement, BoundsSpecified.Width | BoundsSpecified.Height);
Assert.True(updated.Size == replacement.Size);
Assert.True(updated.Location == original.Location);
updated = WinFormsUtil.UpdateBounds(original, replacement, BoundsSpecified.X);
Assert.True(updated.X == replacement.X);
Assert.True(updated.Y == original.Y);
Assert.True(updated.Width == original.Width);
Assert.True(updated.Y == original.Y);
}