/**
* {@inheritDoc}
*
* @see VertexView#getPerimeterPoint(EdgeView, Point2D, Point2D)
*/
@Override
public final Point2D getPerimeterPoint(
EdgeView edge, @SuppressWarnings("unused") Point2D source, Point2D p) {
Rectangle2D r = getBounds();
State state = null;
if (getCell() instanceof DefaultStateView) {
DefaultStateView defaultStateView = (DefaultStateView) getCell();
state = defaultStateView.getState();
}
boolean loopTransition = false;
State otherState = null;
if (edge != null) {
loopTransition = edge.getSource().getParentView() == edge.getTarget().getParentView();
if (edge.getSource().getParentView() == this) {
StateView stateView = (StateView) edge.getTarget().getParentView();
if (stateView.getCell() instanceof DefaultStateView) {
DefaultStateView defaultStateView = (DefaultStateView) stateView.getCell();
otherState = defaultStateView.getState();
}
} else {
StateView stateView = (StateView) edge.getSource().getParentView();
if (stateView.getCell() instanceof DefaultStateView) {
DefaultStateView defaultStateView = (DefaultStateView) stateView.getCell();
otherState = defaultStateView.getState();
}
}
}
double x = r.getX();
double y = r.getY();
double a = r.getWidth() / 2;
double b = r.getHeight() / 2;
// x1, y1 - point
double x1 = p.getX();
double y1 = p.getY();
if ((state != null) && (otherState != null) && !loopTransition) {
boolean firstTransition = false;
for (Transition current : state.getTransitionBegin()) {
if (current.getStateEnd() == otherState) {
firstTransition = true;
}
}
boolean secondTransition = false;
for (Transition current : otherState.getTransitionBegin()) {
if (current.getStateEnd() == state) {
secondTransition = true;
}
}
if (otherState.isStartState() && !(firstTransition && secondTransition)) {
x1 += START_OFFSET / 2;
}
if (otherState.isLoopTransition() && !(firstTransition && secondTransition)) {
y1 += LOOP_TRANSITION_OFFSET / 2;
}
}
if (state != null) {
if (state.isStartState()) {
x = r.getX() + START_OFFSET;
a = (r.getWidth() - START_OFFSET) / 2;
}
if (state.isLoopTransition()) {
y = r.getY() + LOOP_TRANSITION_OFFSET;
b = (r.getHeight() - LOOP_TRANSITION_OFFSET) / 2;
}
}
// x0, y0 - center of ellipse
double x0 = x + a;
double y0 = y + b;
// calculate straight line equation through point and ellipse center
double dx = x1 - x0;
double dy = y1 - y0;
if (dx == 0) {
return new Point((int) x0, (int) (y0 + b * dy / Math.abs(dy)));
}
double d = dy / dx;
double h = y0 - d * x0;
// calculate intersection
double e = a * a * d * d + b * b;
double f = -2 * x0 * e;
double g = a * a * d * d * x0 * x0 + b * b * x0 * x0 - a * a * b * b;
double det = Math.sqrt(f * f - 4 * e * g);
// two solutions (perimeter points)
double xout1 = (-f + det) / (2 * e);
double xout2 = (-f - det) / (2 * e);
double yout1 = d * xout1 + h;
double yout2 = d * xout2 + h;
double dist1Squared = Math.pow((xout1 - x1), 2) + Math.pow((yout1 - y1), 2);
double dist2Squared = Math.pow((xout2 - x1), 2) + Math.pow((yout2 - y1), 2);
// correct solution
double xout, yout;
if (dist1Squared < dist2Squared) {
xout = xout1;
yout = yout1;
} else {
xout = xout2;
yout = yout2;
}
if ((state != null) && state.isPowerState()) {
int checkX = (int) (xout - x);
int checkY = (int) (yout - y);
if ((checkX >= a) && (checkY <= b)) {
Color color = getColor(POWER_STATE_100, checkX, checkY);
while ((color.getRed() == 0) && (color.getGreen() == 0) && (color.getBlue() == 0)) {
xout = xout + 1;
yout = yout - 1;
checkX = (int) (xout - x);
checkY = (int) (yout - y);
color = getColor(POWER_STATE_100, checkX, checkY);
}
} else if ((checkX <= a) && (checkY <= b)) {
Color color = getColor(POWER_STATE_100, checkX, checkY);
while ((color.getRed() == 0) && (color.getGreen() == 0) && (color.getBlue() == 0)) {
xout = xout - 1;
yout = yout - 1;
checkX = (int) (xout - x);
checkY = (int) (yout - y);
color = getColor(POWER_STATE_100, checkX, checkY);
}
} else if ((checkX <= a) && (checkY >= b)) {
Color color = getColor(POWER_STATE_100, checkX, checkY);
while ((color.getRed() == 0) && (color.getGreen() == 0) && (color.getBlue() == 0)) {
xout = xout - 1;
yout = yout + 1;
checkX = (int) (xout - x);
checkY = (int) (yout - y);
color = getColor(POWER_STATE_100, checkX, checkY);
}
} else if ((checkX >= a) && (checkY >= b)) {
Color color = getColor(POWER_STATE_100, checkX, checkY);
while ((color.getRed() == 0) && (color.getGreen() == 0) && (color.getBlue() == 0)) {
xout = xout + 1;
yout = yout + 1;
checkX = (int) (xout - x);
checkY = (int) (yout - y);
color = getColor(POWER_STATE_100, checkX, checkY);
}
}
}
return getAttributes().createPoint(xout, yout);
}
/**
* {@inheritDoc}
*
* @see VertexRenderer#paint(Graphics)
*/
@Override
public final void paint(Graphics g) {
State state = null;
DefaultStateView defaultStateView = null;
if (this.stateView.getCell() instanceof DefaultStateView) {
defaultStateView = (DefaultStateView) this.stateView.getCell();
state = defaultStateView.getState();
} else {
return;
}
int b = this.borderWidth;
int offsetX = state.isStartState() ? START_OFFSET : 0;
int offsetY = state.isLoopTransition() ? LOOP_TRANSITION_OFFSET : 0;
Graphics2D g2 = (Graphics2D) g;
Dimension d = getSize();
boolean tmp = this.selected;
if (super.isOpaque()) {
Color background = null;
// overwritten color
if (defaultStateView.getOverwrittenColor() != null) {
background = defaultStateView.getOverwrittenColor();
}
// error
else if (state.isError()) {
background = this.preferenceStateError;
}
// active
else if (state.isActive()) {
background = this.preferenceStateActive;
}
// start
else if (state.isStartState()) {
background = this.preferenceStateStart;
}
// final
else if (state.isFinalState()) {
background = this.preferenceStateFinal;
}
// normal
else {
background = this.preferenceStateBackground;
}
g.setColor(background);
if ((this.gradientColor != null) && !this.preview) {
setOpaque(false);
g2.setPaint(
new GradientPaint(
0, 0, background, getWidth(), getHeight(), this.gradientColor, true));
}
// final state
if (state.isPowerState()) {
if (state.isFinalState()) {
g.fillRoundRect(
offsetX + b + 3,
offsetY + b + 3,
d.width - b - 8 - offsetX,
d.height - b - 8 - offsetY,
50,
50);
} else {
g.fillRoundRect(
offsetX + b - 1,
offsetY + b - 1,
d.width - b - offsetX,
d.height - b - offsetY,
50,
50);
}
} else {
if (state.isFinalState()) {
g.fillOval(
offsetX + b + 3,
offsetY + b + 3,
d.width - b - 8 - offsetX,
d.height - b - 8 - offsetY);
} else {
g.fillOval(
offsetX + b - 1, offsetY + b - 1, d.width - b - offsetX, d.height - b - offsetY);
}
}
}
try {
setBorder(null);
setOpaque(false);
this.selected = false;
g.setColor(this.preferenceState);
g.setFont(getFont());
FontMetrics metrics = g.getFontMetrics();
int dx =
offsetX + ((d.width - offsetX) / 2) - (metrics.stringWidth(state.toString()) / 2) - 1;
int dy = offsetY + ((d.height - offsetY) / 2) + (metrics.getHeight() / 2) - 3;
PrettyString prettyString = new PrettyString();
prettyString.add(state.toPrettyString());
int insets = state.isFinalState() ? 20 : 10;
// short version
if ((metrics.stringWidth(state.toString()) + insets) > (d.width - offsetX)) {
state.setShortNameUsed(true);
dx = insets / 2;
String dots = " ..."; // $NON-NLS-1$
PrettyToken lastPrettyToken = null;
while ((!prettyString.isEmpty())
&& ((metrics.stringWidth(prettyString.toString() + dots) + 2 * dx)
> (d.width - offsetX))) {
lastPrettyToken = prettyString.removeLastPrettyToken();
}
if (lastPrettyToken != null) {
char[] chars = lastPrettyToken.getChar();
int i = 0;
String addText = ""; // $NON-NLS-1$
while ((i < chars.length)
&& ((metrics.stringWidth(prettyString.toString() + addText + dots) + 2 * dx)
<= (d.width - offsetX))) {
addText += chars[i];
i++;
}
if (addText.length() > 0) {
addText = addText.substring(0, addText.length() - 1);
}
prettyString.add(new PrettyToken(addText, lastPrettyToken.getStyle()));
}
dx += offsetX;
// center the dots if there are no pretty tokens
if (prettyString.isEmpty()) {
dots = "..."; // $NON-NLS-1$
dx = offsetX + ((d.width - offsetX) / 2) - (metrics.stringWidth(dots) / 2) - 1;
}
prettyString.add(new PrettyToken(dots, Style.NONE));
}
// normal version
else {
state.setShortNameUsed(false);
}
for (PrettyToken currentToken : prettyString) {
Font font = null;
if (!currentToken.isBold() && !currentToken.isItalic()) {
font = g.getFont().deriveFont(Font.PLAIN);
} else if (currentToken.isBold() && currentToken.isItalic()) {
font = g.getFont().deriveFont(Font.BOLD | Font.ITALIC);
} else if (currentToken.isBold()) {
font = g.getFont().deriveFont(Font.BOLD);
} else if (currentToken.isItalic()) {
font = g.getFont().deriveFont(Font.ITALIC);
}
g.setFont(font);
g.setColor(currentToken.getColor());
char[] chars = currentToken.getChar();
for (int i = 0; i < chars.length; i++) {
g.drawChars(chars, i, 1, dx, dy);
dx += metrics.charWidth(chars[i]);
}
}
} finally {
this.selected = tmp;
}
if (this.bordercolor != null) {
g.setColor(this.bordercolor);
g2.setStroke(new BasicStroke(b));
if (state.isPowerState()) {
g.drawRoundRect(
offsetX + b - 1,
offsetY + b - 1,
d.width - b - offsetX,
d.height - b - offsetY,
50,
50);
if (state.isFinalState()) {
g.drawRoundRect(
offsetX + b + 3,
offsetY + b + 3,
d.width - b - 8 - offsetX,
d.height - b - 8 - offsetY,
50,
50);
}
} else {
g.drawOval(
offsetX + b - 1, offsetY + b - 1, d.width - b - offsetX, d.height - b - offsetY);
if (state.isFinalState()) {
g.drawOval(
offsetX + b + 3,
offsetY + b + 3,
d.width - b - 8 - offsetX,
d.height - b - 8 - offsetY);
}
}
}
if (this.selected) {
g.setColor(this.preferenceStateSelected);
if (state.isPowerState()) {
g.drawRoundRect(
offsetX + b - 1,
offsetY + b - 1,
d.width - b - offsetX,
d.height - b - offsetY,
50,
50);
if (state.isFinalState()) {
g.drawRoundRect(
offsetX + b + 3,
offsetY + b + 3,
d.width - b - 8 - offsetX,
d.height - b - 8 - offsetY,
50,
50);
}
} else {
g.drawOval(
offsetX + b - 1, offsetY + b - 1, d.width - b - offsetX, d.height - b - offsetY);
if (state.isFinalState()) {
g.drawOval(
offsetX + b + 3,
offsetY + b + 3,
d.width - b - 8 - offsetX,
d.height - b - 8 - offsetY);
}
}
}
if (state.isStartState()) {
g.setFont(getFont().deriveFont(Font.BOLD));
g.setColor(this.preferenceTransition);
g.drawLine(0, offsetY + 35, START_OFFSET, offsetY + 35);
g.drawLine(START_OFFSET - 2, offsetY + 34, START_OFFSET - 2, offsetY + 36);
g.drawLine(START_OFFSET - 3, offsetY + 33, START_OFFSET - 3, offsetY + 37);
g.drawLine(START_OFFSET - 4, offsetY + 32, START_OFFSET - 4, offsetY + 38);
g.drawLine(START_OFFSET - 5, offsetY + 31, START_OFFSET - 5, offsetY + 39);
g.drawLine(START_OFFSET - 6, offsetY + 30, START_OFFSET - 6, offsetY + 40);
g.drawString("Start", 10, offsetY + 30); // $NON-NLS-1$
}
}