/// <summary>
/// Applies layout changes to a given box and its children.
/// </summary>
public override void ApplyVerticalLayout([NotNull] LayoutState state, [NotNull] LayoutState.LayoutLevel level)
{
var node = level.BranchRoot;
if (node.Level == 0)
{
node.State.SiblingsRowV = new Dimensions(
node.State.Top,
node.State.Bottom);
}
if (node.AssistantsRoot != null)
{
// assistants root has to be initialized with main node's exterior
node.AssistantsRoot.State.CopyExteriorFrom(node.State);
LayoutAlgorithm.VerticalLayout(state, node.AssistantsRoot);
}
if (node.State.NumberOfSiblings == 0)
{
return;
}
var siblingsRowExterior = Dimensions.MinMax();
var top = node.AssistantsRoot == null
? node.State.SiblingsRowV.To + ParentChildSpacing
: node.State.BranchExterior.Bottom + ParentChildSpacing;
for (var i = 0; i < node.State.NumberOfSiblings; i++)
{
var child = node.Children[i];
var rect = child.State;
child.State.MoveTo(0, top);
child.State.BranchExterior = new Rect(child.State.TopLeft, child.State.Size);
siblingsRowExterior += new Dimensions(top, top + rect.Size.Height);
}
siblingsRowExterior = new Dimensions(siblingsRowExterior.From, siblingsRowExterior.To);
for (var i = 0; i < node.State.NumberOfSiblings; i++)
{
var child = node.Children[i];
child.State.SiblingsRowV = siblingsRowExterior;
// re-enter layout algorithm for child branch
LayoutAlgorithm.VerticalLayout(state, child);
}
}
/// <summary>
/// Applies layout changes to a given box and its children.
/// </summary>
public override void ApplyVerticalLayout([NotNull] LayoutState state, [NotNull] LayoutState.LayoutLevel level)
{
var node = level.BranchRoot;
if (node.State.NumberOfSiblings <= MaxSiblingsPerRow)
{
// fall back to linear layout, only have one row of boxes
base.ApplyVerticalLayout(state, level);
return;
}
if (node.Level == 0)
{
node.State.SiblingsRowV = new Dimensions(node.State.Top, node.State.Bottom);
}
if (node.AssistantsRoot != null)
{
// assistants root has to be initialized with main node's exterior
node.AssistantsRoot.State.CopyExteriorFrom(node.State);
LayoutAlgorithm.VerticalLayout(state, node.AssistantsRoot);
}
var prevRowExterior = new Dimensions(
node.State.SiblingsRowV.From,
node.AssistantsRoot == null
? node.State.SiblingsRowV.To
: node.State.BranchExterior.Bottom);
for (var row = 0; row < node.State.NumberOfSiblingRows; row++)
{
var siblingsRowExterior = Dimensions.MinMax();
var spacing = row == 0 ? ParentChildSpacing : SiblingSpacing;
// first, compute
var from = row * node.State.NumberOfSiblingColumns;
var to = Math.Min(from + node.State.NumberOfSiblingColumns, node.State.NumberOfSiblings);
for (var i = from; i < to; i++)
{
var child = node.Children[i];
if (child.Element.IsSpecial)
{
// skip vertical spacers for now
continue;
}
var rect = child.State;
var top = prevRowExterior.To + spacing;
child.State.MoveTo(rect.Left, top);
child.State.BranchExterior = new Rect(child.State.TopLeft, child.State.Size);
siblingsRowExterior += new Dimensions(top, top + rect.Size.Height);
}
siblingsRowExterior = new Dimensions(siblingsRowExterior.From, siblingsRowExterior.To);
var siblingsBottom = double.MinValue;
for (var i = from; i < to; i++)
{
var child = node.Children[i];
child.State.SiblingsRowV = siblingsRowExterior;
// re-enter layout algorithm for child branch
LayoutAlgorithm.VerticalLayout(state, child);
siblingsBottom = Math.Max(siblingsBottom, child.State.BranchExterior.Bottom);
}
prevRowExterior = new Dimensions(siblingsRowExterior.From, Math.Max(siblingsBottom, siblingsRowExterior.To));
// now assign size to the vertical spacer, if any
var spacerIndex = from + node.State.NumberOfSiblingColumns / 2;
if (spacerIndex < node.State.NumberOfSiblings)
{
// in the last row, spacer should only extend to the siblings row bottom,
// because main vertical carrier does not go below last row
// and thus cannot conflict with branches of children of the last row
var spacerBottom = row == node.State.NumberOfSiblingRows - 1
? node.Children[spacerIndex - 1].State.SiblingsRowV.To
: prevRowExterior.To;
var spacer = node.Children[spacerIndex].State;
spacer.AdjustSpacer(
0, prevRowExterior.From,
ParentConnectorShield, spacerBottom - prevRowExterior.From);
}
}
}
/// <summary>
/// Applies layout changes to a given box and its children.
/// </summary>
public override void ApplyVerticalLayout([NotNull] LayoutState state, [NotNull] LayoutState.LayoutLevel level)
{
var node = level.BranchRoot;
if (node.Level == 0)
{
node.State.SiblingsRowV = new Dimensions(
node.State.Top,
node.State.Bottom);
}
if (node.State.NumberOfSiblings == 0)
{
return;
}
var siblingsRowExterior = Dimensions.MinMax();
if (Orientation == StackOrientation.SingleRowHorizontal)
{
var top = node.AssistantsRoot == null
? node.State.SiblingsRowV.To + ParentChildSpacing
: node.State.BranchExterior.Bottom + ParentChildSpacing;
for (var i = 0; i < node.State.NumberOfSiblings; i++)
{
var child = node.Children[i];
var rect = child.State;
child.State.MoveTo(0, top);
child.State.BranchExterior = new Rect(child.State.TopLeft, child.State.Size);
siblingsRowExterior += new Dimensions(top, top + rect.Size.Height);
}
siblingsRowExterior = new Dimensions(siblingsRowExterior.From, siblingsRowExterior.To);
for (var i = 0; i < node.State.NumberOfSiblings; i++)
{
var child = node.Children[i];
child.State.SiblingsRowV = siblingsRowExterior;
// re-enter layout algorithm for child branch
LayoutAlgorithm.VerticalLayout(state, child);
}
}
else if (Orientation == StackOrientation.SingleColumnVertical)
{
var prevRowExterior = new Dimensions(
node.State.SiblingsRowV.From,
node.State.SiblingsRowV.To);
for (var row = 0; row < node.State.NumberOfSiblings; row++)
{
// first, compute
var child = node.Children[row];
var rect = child.State;
var top = prevRowExterior.To + (row == 0 ? ParentChildSpacing : SiblingSpacing);
child.State.MoveTo(rect.Left, top);
child.State.BranchExterior = new Rect(child.State.TopLeft, child.State.Size);
var rowExterior = new Dimensions(top, top + rect.Size.Height);
child = node.Children[row];
child.State.SiblingsRowV = rowExterior;
// re-enter layout algorithm for child branch
LayoutAlgorithm.VerticalLayout(state, child);
var childBranchBottom = child.State.BranchExterior.Bottom;
prevRowExterior = new Dimensions(rowExterior.From, Math.Max(childBranchBottom, rowExterior.To));
}
}
}
