/** Standard override -- draws all the dots. */
public void paintComponent(Graphics g) {
// As a JPanel subclass we need call super.paintComponent()
// so JPanel will draw the white background for us.
super.paintComponent(g);
Color origColor = g.getColor();
for (Line l : lines) {
if (l.isPencil()) {
g.setColor(Color.RED);
} else {
g.setColor(Color.BLACK);
}
g.drawLine((int) l.getX1(), (int) l.getY1(), (int) l.getX2(), (int) l.getY2());
}
g.setColor(origColor);
// Go through all the dots, drawing a circle for each
for (ManModel dotModel : dots) {
// g.drawImage(img, dotModel.getX() - MAN_WIDTH/2, dotModel.getY() - MAN_HEIGHT/2, MAN_WIDTH,
// MAN_HEIGHT, null);
g.drawImage(
img,
dotModel.getX() - Constants.MAN_WIDTH / 2,
dotModel.getY() - Constants.MAN_HEIGHT / 2,
null);
}
numberMen.setText("" + dots.size());
// Draw the "requested" clip rect in red
// (this just shows off smart-repaint)
if (redPaint) {
Rectangle clip = g.getClipBounds();
if (clip != null) {
g.setColor(Color.red);
g.drawRect(clip.x, clip.y, clip.width - 1, clip.height - 1);
g.setColor(origColor);
}
}
g.setColor(Color.RED);
for (Line l : circles) {
g.drawLine((int) l.getX1(), (int) l.getY1(), (int) l.getX2(), (int) l.getY2());
}
for (Arc l : arcs) {
g.drawArc(
(int) l.getX1(),
(int) l.getY1(),
(int) l.getWidth(),
(int) l.getHeight(),
(int) l.getStartAngle(),
(int) l.getSweep());
// g.drawArc((int) l.getX1(), (int) l.getY1(), (int) l.getWidth()+1, (int) l.getHeight()+1,
// l.getStartAngle()-1, l.getSweep());
}
g.setColor(Color.BLACK);
}
public static boolean linesIntersect(Line line1, Line line2) {
if (!(line1.equals(line2))) {
double x1 = line1.getX1();
double y1 = line1.getY1();
double x2 = line1.getX2();
double y2 = line1.getY2();
double x3 = line2.getX1();
double y3 = line2.getY1();
double x4 = line2.getX2();
double y4 = line2.getY2();
return Line2D.linesIntersect(x1, y1, x2, y2, x3, y3, x4, y4);
} else {
return false;
}
}
public static String printLine(Line segment) {
return String.format(
"(%.1f, %.1f) to (%.1f, %.1f)",
segment.getX1(), segment.getY1(), segment.getX2(), segment.getY2());
}