/**
* @return a "Sample" tree with {@link TextInBox} items as nodes.
*/
public static ITreeForTreeLayout <TextInBox> ASTTree()
{
TextInBox root = new TextInBox("prog", 40, 20);
TextInBox n1 = new TextInBox("classDef", 65, 20);
TextInBox n1_1 = new TextInBox("class", 50, 20);
TextInBox n1_2 = new TextInBox("T", 20, 20);
TextInBox n1_3 = new TextInBox("{", 20, 20);
TextInBox n1_4 = new TextInBox("member", 60, 20);
TextInBox n1_5 = new TextInBox("member", 60, 20);
TextInBox n1_5_1 = new TextInBox("<ERROR:int>", 90, 20);
TextInBox n1_6 = new TextInBox("member", 60, 20);
TextInBox n1_6_1 = new TextInBox("int", 30, 20);
TextInBox n1_6_2 = new TextInBox("i", 20, 20);
TextInBox n1_6_3 = new TextInBox(";", 20, 20);
TextInBox n1_7 = new TextInBox("}", 20, 20);
DefaultTreeForTreeLayout <TextInBox> tree = new DefaultTreeForTreeLayout <TextInBox>(
root);
tree.Add(root, n1);
tree.Add(n1, n1_1);
tree.Add(n1, n1_2);
tree.Add(n1, n1_3);
tree.Add(n1, n1_4);
tree.Add(n1, n1_5);
tree.Add(n1_5, n1_5_1);
tree.Add(n1, n1_6);
tree.Add(n1_6, n1_6_1);
tree.Add(n1_6, n1_6_2);
tree.Add(n1_6, n1_6_3);
tree.Add(n1, n1_7);
return(tree);
}
private void PaintEdges(Graphics g, TextInBox parent)
{
if (!GetTree().IsLeaf(parent))
{
RectangleF b1 = BoundsOfNode(parent);
double x1 = b1.Left + b1.Width / 2;
double y1 = b1.Top + b1.Height / 2;
foreach (TextInBox child in ChildrenOf(parent))
{
RectangleF b2 = BoundsOfNode(child);
g.DrawLine(new Pen(BORDER_COLOR), (int)x1, (int)y1, (int)(b2.Left + b2.Width / 2),
(int)(b2.Top + b2.Height / 2));
PaintEdges(g, child);
}
}
}
/**
* @return a "Sample" tree with {@link TextInBox} items as nodes.
*/
public static ITreeForTreeLayout <TextInBox> SimpleTree()
{
TextInBox root = new TextInBox("root", 40, 20);
TextInBox n1 = new TextInBox("n1", 30, 20);
TextInBox n1_1 = new TextInBox("n1.1", 80, 36);
TextInBox n1_2 = new TextInBox("n1.2", 40, 20);
TextInBox n1_3 = new TextInBox("n1.3", 80, 36);
TextInBox n2 = new TextInBox("n2", 30, 20);
TextInBox n2_1 = new TextInBox("n2.1", 30, 20);
DefaultTreeForTreeLayout <TextInBox> tree = new DefaultTreeForTreeLayout <TextInBox>(
root);
tree.Add(root, n1);
tree.Add(n1, n1_1);
tree.Add(n1, n1_2);
tree.Add(n1, n1_3);
tree.Add(root, n2);
tree.Add(n2, n2_1);
return(tree);
}
private void PaintBox(Graphics g, TextInBox textInBox)
{
// draw the box in the background
// g.setColor(BOX_COLOR);
RectangleF box = BoundsOfNode(textInBox);
g.FillRectangle(new SolidBrush(BOX_COLOR), (int)box.Left, (int)box.Top, (int)box.Width - 1,
(int)box.Height - 1);
g.DrawRectangle(new Pen(BORDER_COLOR), (int)box.Left, (int)box.Top, (int)box.Width - 1,
(int)box.Height - 1);
// draw the text on top of the box (possibly multiple lines)
// g.setColor(TEXT_COLOR);
string[] lines = textInBox.Text.Split('\n');
// FontMetrics m = getFontMetrics(getFont());
// int x = (int)box.x + ARC_SIZE / 2;
// int y = (int)box.y + m.getAscent() + m.getLeading() + 1;
for (int i = 0; i < lines.Length; i++)
{
g.DrawText(new Font("Arial", ARC_SIZE), new SolidBrush(TEXT_COLOR), box.TopLeft, lines[i]);
// y += m.getHeight();
}
}
private RectangleF BoundsOfNode(TextInBox node) => treeLayout.NodeBounds[node];
private IEnumerable <TextInBox> ChildrenOf(TextInBox parent) => GetTree().Children(parent);
