public void AddTable(DbTable t)
{
int ct = 0;
foreach (DbTableConstraint constraint in t.references.Each())
{
if ((showExplicit.Checked && constraint.isForeignKey) || (showInferred.Checked && constraint.isSloppyForeignKey))
{
ct++;
}
}
foreach (DbTableConstraint constraint in t.constraints.Values)
{
if ((showExplicit.Checked && constraint.isForeignKey) || (showInferred.Checked && constraint.isSloppyForeignKey))
{
ct++;
}
}
if (ct == 0)
{
return;
}
string leftTable = T.AppendTo(t.name, t.GetAlias(true), " ");
Microsoft.Msagl.Drawing.Shape shape = Microsoft.Msagl.Drawing.Shape.Box;
Color backColor = Color.DarkKhaki;
Color borderColor = backColor;
int radius = 20;
DrawingNode node = drawingGraph.AddNode(leftTable);
node.Attr.FillColor = node.Attr.FillColor = GraphColor(backColor);
node.Attr.Color = GraphColor(borderColor);
node.Attr.LabelMargin = 10;
node.Attr.Shape = shape;
node.Attr.XRadius = radius;
node.Attr.YRadius = radius;
node.LabelText = leftTable;
foreach (DbTableConstraint constraint in t.constraints.Values)
{
if ((showExplicit.Checked && constraint.isForeignKey) || (showInferred.Checked && constraint.isSloppyForeignKey))
{
string rightTable = T.AppendTo(constraint.referencedTable.name, constraint.referencedTable.GetAlias(true), " ");
string edgeInfo = constraint.RenderJoinCols(true);
Microsoft.Msagl.Drawing.Edge e = drawingGraph.AddEdge(leftTable, edgeInfo, rightTable);
e.Attr.Weight = 6;
paths.Add(t.name + "." + constraint.referencedTable.name);
}
}
}
public void Visit(Token token)
{
string label = null; // token.debugText;
Microsoft.Msagl.Drawing.Shape shape = Microsoft.Msagl.Drawing.Shape.Box;
Color backColor = UI.GetTokenBackColor(token);
Color borderColor = backColor;
int radius = 20;
if (token.tokenType == TokenType.Column && Showing(token, showColumns.Checked))
{
Column c = token as Column;
shape = Microsoft.Msagl.Drawing.Shape.Msquare;
label = c.columnName;
}
else if (token.tokenType == TokenType.Operator && Showing(token, showOperators.Checked))
{
label = token.name;
}
else if (token.tokenType == TokenType.Table && Showing(token, showTables.Checked))
{
shape = Microsoft.Msagl.Drawing.Shape.Msquare;
Table t = token as Table;
label = T.AppendTo(token.name, t.tableAlias, " ");
}
else if (token.isPrimaryKeyword && Showing(token, showKeywords.Checked))
{
label = token.name;
}
else if (token.tokenType == TokenType.Keyword && Showing(token, showKeywords.Checked))
{
label = token.name;
}
else if (token.tokenType == TokenType.Expression && Showing(token, showExpressions.Checked))
{
label = token.name;
radius = 10;
}
else if (token.tokenType == TokenType.Identifier && Showing(token, showIdentifiers.Checked))
{
label = token.name;
radius = 5;
}
else if (token.tokenType == TokenType.Literal && Showing(token, showLiterals.Checked))
{
label = token.name;
radius = 5;
shape = Microsoft.Msagl.Drawing.Shape.Ellipse;
}
else if (token.tokenType == TokenType.Query)
{
label = token.name;
backColor = Color.WhiteSmoke;
borderColor = Color.DarkGray;
}
if (label != null)
{
label = token.name.LimitToLength(30);
DrawingNode node = drawingGraph.AddNode(token.id);
node.Attr.FillColor = node.Attr.FillColor = GraphColor(backColor);
node.Attr.Color = GraphColor(borderColor);
node.Attr.LabelMargin = 10;
node.Attr.Shape = shape;
node.Attr.XRadius = radius;
node.Attr.YRadius = radius;
node.LabelText = label;
if (token.parentToken != null)
{
drawingGraph.AddEdge(token.id, token.parentToken.id);
}
else if (token.parentQuery != null)
{
drawingGraph.AddEdge(token.id, token.parentQuery.id);
}
}
}