public void drawDashedLine(int d, int x1, int y1, int x2, int y2) {
Stroke s = getStroke();
float w = 1;
int c = BasicStroke.CAP_BUTT;
int j = BasicStroke.JOIN_MITER;
float ml = 0;
float[] dp = {d, d};
if (s instanceof BasicStroke) {
BasicStroke b = (BasicStroke) s;
w = b.getLineWidth();
c = b.getEndCap();
j = b.getLineJoin();
ml = b.getMiterLimit();
}
setStroke(new BasicStroke(w, c, j, ml, dp, 0));
drawLine(x1, y1, x2, y2);
setStroke(s);
}
/*
* Creates a line of width EDGE_SELECT_WIDTH for each edge
* and tests if mouse click was in that Shape's boundary.
* Returns the edge if one was selected, null otherwise.
*/
public TreeEdge testEdgeShapes(MouseEvent event) {
if (argument == null || argument.getTree() == null) return null;
double x = event.getX();
double y = event.getY();
BasicStroke edgeWidth = new BasicStroke(EDGE_SELECT_WIDTH);
if (argument.getBreadthFirstTraversal() == null) return null;
Enumeration nodeList = argument.getBreadthFirstTraversal().elements();
while (nodeList.hasMoreElements()) {
TreeVertex vertex = (TreeVertex) nodeList.nextElement();
if (argument.isMultiRoots() && vertex.getLayer() == 0) continue;
Enumeration edges = vertex.getEdgeList().elements();
while (edges.hasMoreElements()) {
TreeEdge edge = (TreeEdge) edges.nextElement();
Shape shape = edge.getShape(this);
Shape wideEdge = edgeWidth.createStrokedShape(shape);
TreeVertex child = edge.getDestVertex();
if (wideEdge.contains(x, y)) {
edge.setSelected(!edge.isSelected());
return edge;
}
}
}
return null;
}
private void drawScreenFrame(Graphics2D g2d, int scrId) {
g2d.setColor(screenFrameColor);
g2d.setStroke(strokeScreenFrame);
if (screenFrame == null) {
screenFrame = Screen.getBounds(scrId);
Rectangle ubound = scrOCP.getBounds();
screenFrame.x -= ubound.x;
screenFrame.y -= ubound.y;
int sw = (int) (strokeScreenFrame.getLineWidth() / 2);
screenFrame.x += sw;
screenFrame.y += sw;
screenFrame.width -= sw * 2;
screenFrame.height -= sw * 2;
}
g2d.draw(screenFrame);
}
/** [Internal] */
public String obj2str(Object o) {
if (o == null) return "-null-";
String s = "";
if (o instanceof Object[]) {
Object[] a = (Object[]) o;
for (Object ox : a) s = s + " " + ox;
} else if (o instanceof BasicStroke) {
BasicStroke o1 = (BasicStroke) o;
s =
"BasicStroke("
+ o1.getLineWidth()
+ ","
+ o1.getDashPhase()
+ ","
+ o1.getLineJoin()
+ ","
+ o1.getMiterLimit()
+ ","
+ o1.getEndCap();
} else s = "" + o;
return s;
}