public void AddItem(ILayoutable item, Alignment alignment = Alignment.Default)
{
foreach (var pair in _items)
{
if (pair.Key == item)
{
return; // already part of this layout
}
}
_items.Add(new KeyValuePair <ILayoutable, Alignment>(item, alignment));
item.AttachTo(_backgroundSprite, true);
item.RelativeZ = 0.1f;
item.Alpha = _alpha;
item.ParentLayout = this;
_recalculateLayout = true;
if (item.OnAddedToLayout != null)
{
item.OnAddedToLayout(this);
}
PerformLayout();
item.OnSizeChangeHandler = sender =>
{
_recalculateLayout = true;
// If a recalculation already happened this frame, manually trigger a new one
if (Math.Abs(_lastLayoutFrame - TimeManager.CurrentTime) > double.Epsilon)
{
ForceUpdateDependencies();
}
};
}
public void AddItem(ILayoutable item, HorizontalPosition horizontalPosition, VerticalPosition verticalPosition, LayoutOrigin layoutFrom = LayoutOrigin.Center)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
var position = new OverallPosition
{
HorizontalPosition = horizontalPosition,
VerticalPosition = verticalPosition,
LayoutOrigin = layoutFrom
};
_items.Add(item, position);
item.Alpha = _alpha;
item.AttachTo(_backgroundSprite, true);
item.RelativeZ = 0.1f;
item.ParentLayout = this;
if (item.OnAddedToLayout != null)
{
item.OnAddedToLayout(this);
}
PositionItem(item, horizontalPosition, verticalPosition, layoutFrom);
// When the size changes, make sure to reposition the item so it's still in the same spot
item.OnSizeChangeHandler = new LayoutableEvent(delegate(ILayoutable sender) { PositionItem(item, horizontalPosition, verticalPosition, layoutFrom); });
}
public void AddItem(ILayoutable item, float radiusOffset = 0, float degreeOffset = 0)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (!_items.ContainsKey(item))
{
// Add the item to the list
_items.Add(item, new CircularPosition());
item.AttachTo(_backgroundSprite, true);
item.RelativeZ = 0.1f;
item.Alpha = _alpha;
item.ParentLayout = this;
if (item.OnAddedToLayout != null)
{
item.OnAddedToLayout(this);
}
}
// Calculate the item's position
_items[item].RadiusOffset = radiusOffset;
_items[item].RadianOffset = MathHelper.ToRadians(degreeOffset);
// Trigger a recalulation of the layout
_recalculateLayout = true;
// Set the size to realculate when a control changes
item.OnSizeChangeHandler = sender => _recalculateLayout = true;
}
public void AddItem(ILayoutable item, int rowIndex, int columnIndex, HorizontalAlignment horizontalAlignment = HorizontalAlignment.Left, VerticalAlignment verticalAlignment = VerticalAlignment.Top)
{
if (columnIndex < 0)
{
throw new InvalidOperationException("Item cannot be placed in a column index less than 0");
}
if (rowIndex < 0)
{
throw new InvalidOperationException("Item cannot be placed in a row index less than 0");
}
// Ignore null items
if (item == null)
{
return;
}
// If this item is already tracked, remove it from the current position
// and place the item in the new position
if (_items.Contains(item))
{
_items.Remove(item);
}
// Add the item to the grid collection
if (_items[rowIndex, columnIndex] != null)
{
throw new InvalidOperationException(
string.Format("An item already exists for this grid at row {0} column {1}", rowIndex, columnIndex));
}
var alignment = new GridAlignment
{
HorizontalAlignment = horizontalAlignment,
VerticalAlignment = verticalAlignment
};
_items.Add(item, alignment, rowIndex, columnIndex);
// Attach the item to the background sprite
item.AttachTo(_backgroundSprite, true);
item.RelativeZ = 0.1f;
item.Alpha = _alpha;
item.ParentLayout = this;
if (item.OnAddedToLayout != null)
{
item.OnAddedToLayout(this);
}
_recalculateLayout = true;
item.OnSizeChangeHandler = sender => _recalculateLayout = true;
}
public void AddItem(ILayoutable item, int rowIndex, int columnIndex, HorizontalAlignment horizontalAlignment = HorizontalAlignment.Left, VerticalAlignment verticalAlignment = VerticalAlignment.Top)
{
if (columnIndex < 0)
throw new InvalidOperationException("Item cannot be placed in a column index less than 0");
if (rowIndex < 0)
throw new InvalidOperationException("Item cannot be placed in a row index less than 0");
// Ignore null items
if (item == null)
return;
// If this item is already tracked, remove it from the current position
// and place the item in the new position
if (_items.Contains(item))
_items.Remove(item);
// Add the item to the grid collection
if (_items[rowIndex, columnIndex] != null)
throw new InvalidOperationException(
string.Format("An item already exists for this grid at row {0} column {1}", rowIndex, columnIndex));
var alignment = new GridAlignment
{
HorizontalAlignment = horizontalAlignment,
VerticalAlignment = verticalAlignment
};
_items.Add(item, alignment, rowIndex, columnIndex);
// Attach the item to the background sprite
item.AttachTo(_backgroundSprite, true);
item.RelativeZ = 0.1f;
item.Alpha = _alpha;
item.ParentLayout = this;
if (item.OnAddedToLayout != null)
item.OnAddedToLayout(this);
_recalculateLayout = true;
item.OnSizeChangeHandler = sender => _recalculateLayout = true;
}
