private Handle[] getHandleArray(HandleGesture gesture) {
if (gesture == null) {
return new Handle[] { new Handle(this, p0), new Handle(this, p1),
new Handle(this, p2) };
} else {
Handle g = gesture.getHandle();
int gx = g.getX() + gesture.getDeltaX();
int gy = g.getY() + gesture.getDeltaY();
Handle[] ret = { new Handle(this, p0), new Handle(this, p1),
new Handle(this, p2) };
if (g.isAt(p0)) {
if (gesture.isShiftDown()) {
Location p = LineUtil.snapTo8Cardinals(p2, gx, gy);
ret[0] = new Handle(this, p);
} else {
ret[0] = new Handle(this, gx, gy);
}
} else if (g.isAt(p2)) {
if (gesture.isShiftDown()) {
Location p = LineUtil.snapTo8Cardinals(p0, gx, gy);
ret[2] = new Handle(this, p);
} else {
ret[2] = new Handle(this, gx, gy);
}
} else if (g.isAt(p1)) {
if (gesture.isShiftDown()) {
double x0 = p0.getX();
double y0 = p0.getY();
double x1 = p2.getX();
double y1 = p2.getY();
double midx = (x0 + x1) / 2;
double midy = (y0 + y1) / 2;
double dx = x1 - x0;
double dy = y1 - y0;
double[] p = LineUtil.nearestPointInfinite(gx, gy,
midx, midy, midx - dy, midy + dx);
gx = (int) Math.round(p[0]);
gy = (int) Math.round(p[1]);
}
if (gesture.isAltDown()) {
double[] e0 = { p0.getX(), p0.getY() };
double[] e1 = { p2.getX(), p2.getY() };
double[] mid = { gx, gy };
double[] ct = CurveUtil.interpolate(e0, e1, mid);
gx = (int) Math.round(ct[0]);
gy = (int) Math.round(ct[1]);
}
ret[1] = new Handle(this, gx, gy);
}
return ret;
}
}
void doZoom() {
if (owner == null) {
return;
}
owner.pack();
Dimension screenSize = owner.getToolkit().getScreenSize();
Dimension windowSize = owner.getPreferredSize();
Point windowLoc = owner.getLocation();
boolean locChanged = false;
boolean sizeChanged = false;
if (windowLoc.x + windowSize.width > screenSize.width) {
windowLoc.x = Math.max(0, screenSize.width - windowSize.width);
locChanged = true;
if (windowLoc.x + windowSize.width > screenSize.width) {
windowSize.width = screenSize.width - windowLoc.x;
sizeChanged = true;
}
}
if (windowLoc.y + windowSize.height > screenSize.height) {
windowLoc.y = Math.max(0, screenSize.height - windowSize.height);
locChanged = true;
if (windowLoc.y + windowSize.height > screenSize.height) {
windowSize.height = screenSize.height - windowLoc.y;
sizeChanged = true;
}
}
if (locChanged) {
owner.setLocation(windowLoc);
}
if (sizeChanged) {
owner.setSize(windowSize);
}
}
@Override
public boolean contains(Location loc, boolean assumeFilled) {
Object type = getPaintType();
if (assumeFilled && type == DrawAttr.PAINT_STROKE) {
type = DrawAttr.PAINT_STROKE_FILL;
}
if (type != DrawAttr.PAINT_FILL) {
int stroke = getStrokeWidth();
double[] q = toArray(loc);
double[] p0 = toArray(this.p0);
double[] p1 = toArray(this.p1);
double[] p2 = toArray(this.p2);
double[] p = CurveUtil.findNearestPoint(q, p0, p1, p2);
if (p == null) {
return false;
}
int thr;
if (type == DrawAttr.PAINT_STROKE) {
thr = Math.max(Line.ON_LINE_THRESH, stroke / 2);
} else {
thr = stroke / 2;
}
if (LineUtil.distanceSquared(p[0], p[1], q[0], q[1]) < thr * thr) {
return true;
}
}
if (type != DrawAttr.PAINT_STROKE) {
QuadCurve2D curve = getCurve(null);
if (curve.contains(loc.getX(), loc.getY())) {
return true;
}
}
return false;
}
private void drawInstance(InstancePainter painter, boolean isGhost) {
Bounds bds = painter.getBounds();
Object powerLoc = painter.getAttributeValue(Wiring.ATTR_GATE);
Direction facing = painter.getAttributeValue(StdAttr.FACING);
boolean flip =
(facing == Direction.SOUTH || facing == Direction.WEST)
== (powerLoc == Wiring.GATE_TOP_LEFT);
int degrees = Direction.WEST.toDegrees() - facing.toDegrees();
if (flip) {
degrees += 180;
}
double radians = Math.toRadians((degrees + 360) % 360);
Graphics2D g = (Graphics2D) painter.getGraphics().create();
g.rotate(radians, bds.getX() + 20, bds.getY() + 20);
g.translate(bds.getX(), bds.getY());
GraphicsUtil.switchToWidth(g, Wire.WIDTH);
Color gate0 = g.getColor();
Color gate1 = gate0;
Color input = gate0;
Color output = gate0;
Color platform = gate0;
if (!isGhost && painter.getShowState()) {
gate0 = painter.getPort(GATE0).getColor();
gate1 = painter.getPort(GATE0).getColor();
input = painter.getPort(INPUT).getColor();
output = painter.getPort(OUTPUT).getColor();
platform = computeOutput(painter).getColor();
}
g.setColor(flip ? input : output);
g.drawLine(0, 20, 11, 20);
g.drawLine(11, 13, 11, 27);
g.setColor(flip ? output : input);
g.drawLine(29, 20, 40, 20);
g.drawLine(29, 13, 29, 27);
g.setColor(gate0);
g.drawLine(20, 35, 20, 40);
GraphicsUtil.switchToWidth(g, 1);
g.drawOval(18, 30, 4, 4);
g.drawLine(10, 30, 30, 30);
GraphicsUtil.switchToWidth(g, Wire.WIDTH);
g.setColor(gate1);
g.drawLine(20, 9, 20, 0);
GraphicsUtil.switchToWidth(g, 1);
g.drawLine(10, 10, 30, 10);
g.setColor(platform);
g.drawLine(9, 12, 31, 12);
g.drawLine(9, 28, 31, 28);
// arrow
if (flip) {
g.drawLine(18, 17, 21, 20);
g.drawLine(18, 23, 21, 20);
} else {
g.drawLine(22, 17, 19, 20);
g.drawLine(22, 23, 19, 20);
}
g.dispose();
}