private static double PaintTree(Tree t, Point2D start, Graphics2D g2, FontMetrics fM)
{
if (t == null)
{
return(0.0);
}
string nodeStr = NodeToString(t);
double nodeWidth = fM.StringWidth(nodeStr);
double nodeHeight = fM.GetHeight();
double nodeAscent = fM.GetAscent();
TreeJPanel.WidthResult wr = WidthResult(t, fM);
double treeWidth = wr.width;
double nodeTab = wr.nodeTab;
double childTab = wr.childTab;
double nodeCenter = wr.nodeCenter;
//double treeHeight = height(t, fM);
// draw root
g2.DrawString(nodeStr, (float)(nodeTab + start.GetX()), (float)(start.GetY() + nodeAscent));
if (t.IsLeaf())
{
return(nodeWidth);
}
double layerMultiplier = (1.0 + belowLineSkip + aboveLineSkip + parentSkip);
double layerHeight = nodeHeight * layerMultiplier;
double childStartX = start.GetX() + childTab;
double childStartY = start.GetY() + layerHeight;
double lineStartX = start.GetX() + nodeCenter;
double lineStartY = start.GetY() + nodeHeight * (1.0 + belowLineSkip);
double lineEndY = lineStartY + nodeHeight * parentSkip;
// recursively draw children
for (int i = 0; i < t.Children().Length; i++)
{
Tree child = t.Children()[i];
double cWidth = PaintTree(child, new Point2D.Double(childStartX, childStartY), g2, fM);
// draw connectors
wr = WidthResult(child, fM);
double lineEndX = childStartX + wr.nodeCenter;
g2.Draw(new Line2D.Double(lineStartX, lineStartY, lineEndX, lineEndY));
childStartX += cWidth;
if (i < t.Children().Length - 1)
{
childStartX += sisterSkip * fM.StringWidth(" ");
}
}
return(treeWidth);
}
/// <summary>
/// {@inheritDoc}
/// </summary>
public override void Draw(Graphics2D graphics, float x, float y)
{
// translating graphics to draw Shape !!!
graphics.Translate((int)x, (int)y);
try
{
if (FStroke == STROKE)
{
// REMIND: set stroke to correct size
graphics.Draw(FShape);
}
else
{
graphics.Fill(FShape);
}
}
finally
{
graphics.Translate(-(int)x, -(int)y);
}
}
public static void paint(SimpleShape shape, Graphics2D graphics){
Rectangle2D anchor = shape.GetLogicalAnchor2D();
java.awt.Shape outline = shape.GetOutline();
//flip vertical
if(shape.GetFlipVertical()){
graphics.translate(anchor.GetX(), anchor.GetY() + anchor.Height);
graphics.scale(1, -1);
graphics.translate(-anchor.GetX(), -anchor.GetY());
}
//flip horizontal
if(shape.GetFlipHorizontal()){
graphics.translate(anchor.GetX() + anchor.Width, anchor.GetY());
graphics.scale(-1, 1);
graphics.translate(-anchor.GetX() , -anchor.GetY());
}
//rotate transform
double angle = shape.GetRotation();
if(angle != 0){
double centerX = anchor.GetX() + anchor.Width/2;
double centerY = anchor.GetY() + anchor.Height/2;
graphics.translate(centerX, centerY);
graphics.rotate(Math.ToRadians(angle));
graphics.translate(-centerX, -centerY);
}
//fill
Color FillColor = shape.GetFill().GetForegroundColor();
if (FillColor != null) {
//TODO: implement gradient and texture fill patterns
graphics.SetPaint(FillColor);
graphics.Fill(outline);
}
//border
Color lineColor = shape.GetLineColor();
if (lineColor != null){
graphics.SetPaint(lineColor);
float width = (float)shape.GetLineWidth();
int dashing = shape.GetLineDashing();
//TODO: implement more dashing styles
float[] dashptrn = null;
switch(dashing){
case Line.PEN_SOLID:
dashptrn = null;
break;
case Line.PEN_PS_DASH:
dashptrn = new float[]{width, width};
break;
case Line.PEN_DOTGEL:
dashptrn = new float[]{width*4, width*3};
break;
default:
logger.log(POILogger.WARN, "unsupported dashing: " + dashing);
dashptrn = new float[]{width, width};
break;
}
Stroke stroke = new BasicStroke(width, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10.0f, dashptrn, 0.0f);
graphics.SetStroke(stroke);
graphics.Draw(outline);
}
}
