You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
3.0 KiB
Java
99 lines
3.0 KiB
Java
4 years ago
|
// ServicePrimitive.java (C) I. A. Robin, K. J. Turner 08/03/06
|
||
|
|
|
||
|
|
package simulator;
|
||
|
|
|
||
|
|
import java.awt.*;
|
||
|
|
import support.ProtocolEvent;
|
||
|
|
|
||
|
|
public class ServicePrimitive extends TSDSymbol {
|
||
|
|
|
||
|
|
public static final int HEAD = 0;
|
||
|
|
public static final int TAIL = 1;
|
||
|
|
|
||
|
|
private static final int labelPadding = 5;
|
||
|
|
private static int headLength = 8;
|
||
|
|
private static int headWidth = 5;
|
||
|
|
private int width;
|
||
|
|
private boolean lToR;
|
||
|
|
private String label;
|
||
|
|
private int labelPos;
|
||
|
|
|
||
|
|
public ServicePrimitive(
|
||
|
|
ProtocolEvent event, boolean lToR, int col, int top, int height) {
|
||
|
|
super(event, col, top);
|
||
|
|
this.lToR = lToR;
|
||
|
|
width = arrowWidth;
|
||
|
|
this.height = height;
|
||
|
|
}
|
||
|
|
|
||
|
|
public void setLabel(String lbl, int pos) {
|
||
|
|
label = lbl;
|
||
|
|
labelPos = pos;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Draw filled triangle at head of arrow
|
||
|
|
// l = length, w = width of arrowhead
|
||
|
|
|
||
|
|
private void drawHead(
|
||
|
|
Graphics g, int xHead, int yHead, int xTail, int yTail, int l, int w) {
|
||
|
|
int dx = xHead - xTail;
|
||
|
|
int dy = yHead - yTail;
|
||
|
|
int[] xh = new int[3];
|
||
|
|
int[] yh = new int[3];
|
||
|
|
xh[0] = xHead;
|
||
|
|
yh[0] = yHead;
|
||
|
|
float length = (float)(Math.sqrt(dx*dx + dy*dy));
|
||
|
|
xh[1] = xh[0] - Math.round((l*dx + w*dy)/length);
|
||
|
|
yh[1] = yh[0] + Math.round((w*dx - l*dy)/length);
|
||
|
|
xh[2] = xh[0] - Math.round((l*dx - w*dy)/length);
|
||
|
|
yh[2] = yh[0] - Math.round((w*dx + l*dy)/length);
|
||
|
|
g.fillPolygon(xh, yh, 3);
|
||
|
|
}
|
||
|
|
|
||
|
|
private void drawLabel(
|
||
|
|
Graphics g, int xHead, int yHead, int xTail, int yTail) {
|
||
|
|
g.setFont(TimeSequenceDiagram.labelFont);
|
||
|
|
FontMetrics fm = g.getFontMetrics(TimeSequenceDiagram.labelFont);
|
||
|
|
int labelWidth = fm.stringWidth(label);
|
||
|
|
int labelX = xTail - labelWidth - labelPadding;
|
||
|
|
int labelY = (labelPos == HEAD)? yHead : yTail;
|
||
|
|
if (lToR && labelPos == HEAD)
|
||
|
|
labelX = xHead + labelPadding;
|
||
|
|
if (!lToR && labelPos == TAIL)
|
||
|
|
labelX = xTail + labelPadding;
|
||
|
|
if (!lToR && labelPos == HEAD)
|
||
|
|
labelX = xHead - labelWidth - labelPadding;
|
||
|
|
g.drawString(label, labelX, labelY - 3);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Draw arrow across column boundary from sourceCol
|
||
|
|
// in specified direction (lToR = true/false)
|
||
|
|
// with text label at "labelPos" (HEAD / TAIL)
|
||
|
|
|
||
|
|
public void draw(Graphics g) {
|
||
|
|
int xMid = inset + col*columnWidth; // midpoint of shaft
|
||
|
|
if (!lToR) xMid += columnWidth;
|
||
|
|
// Locations of arrow head and tail
|
||
|
|
int xHead = xMid + width/2;
|
||
|
|
int xTail = xMid - width/2;
|
||
|
|
if (!lToR) { // adjust for rightwards arrow
|
||
|
|
xHead -= width;
|
||
|
|
xTail += width;
|
||
|
|
}
|
||
|
|
int yTail = top;
|
||
|
|
int yHead = yTail + height;
|
||
|
|
drawLabel(g, xHead, yHead, xTail, yTail); // draw label
|
||
|
|
g.drawLine(xTail, yTail, xHead, yHead); // draw shaft of arrow
|
||
|
|
if (lToR) { // prepare head of arrow
|
||
|
|
g.drawLine(xTail, yTail - 1, xHead - 4, yHead - 1);
|
||
|
|
xHead += 2;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
g.drawLine(xTail, yTail - 1, xHead + 4, yHead - 1);
|
||
|
|
xHead -= 2;
|
||
|
|
}
|
||
|
|
drawHead(g, xHead, yHead, xTail, yTail, headLength, headWidth);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|