/**
* @todo Refactor this. Shouldn't mix localisation logic and relation mutation logic in one method
* @todo-javadoc Write javadocs for method parameter
* @todo-javadoc Write javadocs for method parameter
* @todo-javadoc Write javadocs for return value
* @todo-javadoc Write javadocs for method parameter
* @param evt Describe what the parameter does
* @return Describe the return value
*/
public boolean selectMaybe(MouseEvent evt) {
boolean multiplicity = evt.isControlDown();
boolean cardinality = evt.isShiftDown();
Point point = evt.getPoint();
setSelected(_mainLine.intersects(point.getX() - 5, point.getY() - 5, 10, 10));
if (isSelected()) {
double distFromP1 =
Point2D.distance(_mainLine.getX1(), _mainLine.getY1(), point.getX(), point.getY());
boolean nearP1 = distFromP1 < _mainLength / 2;
boolean leftChosen = (_leftIsWest && nearP1) || (!_leftIsWest && !nearP1);
RelationshipRole role = leftChosen ? _rightRole : _leftRole;
if (multiplicity) {
// toggle multiplicity. Let's prevent the user from doing something stupid. Some
// cardinalities
// can't be changed. we know best etc.
if (role.getRelation().isMany2Many()) {
// don't allow to change cardinality of m:n relationships
JOptionPane.showMessageDialog(
null,
"Can't change the cardinality of a many-to-many relationship",
"Cardinality",
JOptionPane.INFORMATION_MESSAGE);
return false;
}
if (role.isFkPk()) {
// don't allow to change cardinality of 1:1 relationships that are 1:1 because fk is also
// pk
JOptionPane.showMessageDialog(
null,
"Can't change the cardinality of a one-to-one relationship where the foreign key is also a primary key",
"Cardinality",
JOptionPane.INFORMATION_MESSAGE);
return false;
}
if (role.isTargetPrimaryKey()) {
JOptionPane.showMessageDialog(
null,
"Can't change the cardinality of a the one-side of a relationship that corresponds to a primary key",
"Cardinality",
JOptionPane.INFORMATION_MESSAGE);
return false;
}
// All checks passed. Do the toggle
role.setTargetMany(!role.isTargetMany());
}
if (cardinality) {
// toggle between uni/bidirectional
role.setEnabled(!role.isEnabled());
}
return true;
} else {
return false;
}
}
/**
* ******************************************************************************************
* Draws the chart
*
* @param axisChart
* @param iAxisChartDataSet
* @throws PropertyException
* *******************************************************************************************
*/
static void render(AxisChart axisChart, IAxisChartDataSet iAxisChartDataSet)
throws PropertyException {
Graphics2D g2d = axisChart.getGraphics2D();
LineChartProperties lineChartProperties =
(LineChartProperties) iAxisChartDataSet.getChartTypeProperties();
lineChartProperties.validate(iAxisChartDataSet);
// DataAxisProperties dataAxisProperties= (DataAxisProperties)
// axisChart.getAxisProperties().getYAxisProperties();
IDataSeries iDataSeries = (IDataSeries) axisChart.getIAxisDataSeries();
// ---cache the computed values
float[][] yAxisCoordinates =
new float[iAxisChartDataSet.getNumberOfDataSets()]
[iAxisChartDataSet.getNumberOfDataItems()];
// ---need this for image map calculation
float xMapCoordinate = axisChart.getXAxis().getTickStart();
// LOOP
for (int j = 0; j < iAxisChartDataSet.getNumberOfDataItems(); j++) {
// LOOP
for (int i = 0; i < yAxisCoordinates.length; i++) {
if (iAxisChartDataSet.getValue(i, j) != Double.NaN) {
yAxisCoordinates[i][j] =
axisChart
.getYAxis()
.computeAxisCoordinate(
axisChart.getYAxis().getOrigin(),
iAxisChartDataSet.getValue(i, j),
axisChart.getYAxis().getScaleCalculator().getMinValue());
// ---if we are generating an ImageMap, store the image coordinates
if (axisChart.getGenerateImageMapFlag()) {
String label;
if (axisChart.getXAxis().getAxisLabelsGroup() != null) {
label = axisChart.getXAxis().getAxisLabelsGroup().getTextTag(j).getText();
} else {
label = null;
}
axisChart
.getImageMap()
.addImageMapArea(
new CircleMapArea(
xMapCoordinate,
yAxisCoordinates[i][j],
iAxisChartDataSet.getValue(i, j),
label,
iAxisChartDataSet.getLegendLabel(i)));
}
} else {
yAxisCoordinates[i][j] = Float.NaN;
}
}
xMapCoordinate += axisChart.getXAxis().getScalePixelWidth();
}
AffineTransform originalTransform = null;
double[] cornerXOffset = null;
double[] cornerYOffset = null;
// ---check if there are any points to display
if (lineChartProperties.getShapes() != null) {
// ---when centering the shapes on the points, need x and y offset to do this
cornerXOffset = new double[iAxisChartDataSet.getNumberOfDataSets()];
cornerYOffset = new double[iAxisChartDataSet.getNumberOfDataSets()];
// ---get the original transform so can reset it.
originalTransform = g2d.getTransform();
Rectangle2D rectangle;
// LOOP
// ---pre-compute the dimensions of each Shape so do not do it in loop.
for (int i = 0; i < iAxisChartDataSet.getNumberOfDataSets(); i++) {
if (lineChartProperties.getShapes()[i] != null) {
rectangle = lineChartProperties.getShapes()[i].getBounds2D();
cornerXOffset[i] = rectangle.getWidth() / 2;
cornerYOffset[i] = rectangle.getHeight() / 2;
}
}
}
// ---init for first segment
Line2D.Float line =
new Line2D.Float(
axisChart.getXAxis().getTickStart(),
yAxisCoordinates[0][0],
axisChart.getXAxis().getTickStart(),
yAxisCoordinates[0][0]);
// ---make sure not plotting a chart with only one data point.
if (yAxisCoordinates[0].length > 1) {
line.y2 = yAxisCoordinates[0][1];
}
// LOOP
// ---draw each line to the image
for (int i = 0; i < yAxisCoordinates.length; i++) {
line.x1 = axisChart.getXAxis().getTickStart();
line.y1 = yAxisCoordinates[i][0];
line.x2 = line.x1;
// LOOP
for (int j = 1; j < yAxisCoordinates[0].length; j++) {
// ---if current point on line should be drawn
if (!Float.isNaN(yAxisCoordinates[i][j])) {
// ---if the previous point was not drawn, no line
if (Float.isNaN(yAxisCoordinates[i][j - 1])) {
line.x2 += axisChart.getXAxis().getScalePixelWidth();
line.x1 = line.x2;
line.y1 = yAxisCoordinates[i][j];
line.y2 = yAxisCoordinates[i][j];
continue;
}
line.x2 += axisChart.getXAxis().getScalePixelWidth();
line.y2 = yAxisCoordinates[i][j];
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.setStroke(lineChartProperties.getLineStrokes()[i]);
g2d.draw(line);
// ---plot the Point
if (lineChartProperties.getShapes()[i] != null) {
// ---translate the Shape into position.
g2d.translate(line.x1 - cornerXOffset[i], line.y1 - cornerYOffset[i]);
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(lineChartProperties.getShapes()[i]);
// ---translate back to the original position
g2d.setTransform(originalTransform);
}
line.x1 = line.x2;
line.y1 = line.y2;
} else {
if ((!Float.isNaN(yAxisCoordinates[i][j - 1]))
&& (lineChartProperties.getShapes()[i] != null)) {
// ---translate the Shape into position.
g2d.translate(line.x1 - cornerXOffset[i], line.y1 - cornerYOffset[i]);
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(lineChartProperties.getShapes()[i]);
// ---translate back to the original position
g2d.setTransform(originalTransform);
}
line.x2 += axisChart.getXAxis().getScalePixelWidth();
line.x1 = line.x2;
}
}
// ---put the last shape on the line
if ((!Float.isNaN(yAxisCoordinates[i][yAxisCoordinates[i].length - 1]))
&& (lineChartProperties.getShapes()[i] != null)) {
// ---translate the Shape into position.
g2d.translate(line.x2 - cornerXOffset[i], line.y2 - cornerYOffset[i]);
g2d.setPaint(iAxisChartDataSet.getPaint(i));
g2d.fill(lineChartProperties.getShapes()[i]);
// ---translate back to the original position
g2d.setTransform(originalTransform);
}
}
}
/**
* Sets the CardinalityPoints attribute of the RelationLine object
*
* @todo refactor this duplicate code!!!
*/
private void setCardinalityPoints() {
// compute vector of length 1
_mainLength =
Point2D.distance(
_mainLine.getX1(), _mainLine.getY1(), _mainLine.getX2(), _mainLine.getY2());
double vx = (_mainLine.getX2() - _mainLine.getX1()) / _mainLength;
double vy = (_mainLine.getY2() - _mainLine.getY1()) / _mainLength;
double cardx = 20.0 * vx;
double cardy = 20.0 * vy;
double arrowx = 30.0 * vx;
double arrowy = 30.0 * vy;
if (_leftIsWest) {
_leftArrowPoint.setLocation(_mainLine.getX1() + cardx, _mainLine.getY1() + cardy);
_rightArrowPoint.setLocation(_mainLine.getX2() - cardx, _mainLine.getY2() - cardy);
// The left-side arrow head
_temp.setLocation(_mainLine.getX1() + arrowx, _mainLine.getY1() + arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint1);
_leftArrowLine1.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint1.getX(),
_leftArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint2);
_leftArrowLine2.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint2.getX(),
_leftArrowPoint2.getY());
_arrowTransform.setToRotation(Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftCardinalityPoint);
_arrowTransform.setToRotation(-Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftFkPoint);
// The right-side arrow head
_temp.setLocation(_mainLine.getX2() - arrowx, _mainLine.getY2() - arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint1);
_rightArrowLine1.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint1.getX(),
_rightArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint2);
_rightArrowLine2.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint2.getX(),
_rightArrowPoint2.getY());
_arrowTransform.setToRotation(-Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightCardinalityPoint);
_arrowTransform.setToRotation(Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightFkPoint);
} else {
_leftArrowPoint.setLocation(_mainLine.getX2() - cardx, _mainLine.getY2() - cardy);
_rightArrowPoint.setLocation(_mainLine.getX1() + cardx, _mainLine.getY1() + cardy);
// The left-side arrow head
_temp.setLocation(_mainLine.getX2() - arrowx, _mainLine.getY2() - arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint1);
_leftArrowLine1.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint1.getX(),
_leftArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint2);
_leftArrowLine2.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint2.getX(),
_leftArrowPoint2.getY());
_arrowTransform.setToRotation(Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftCardinalityPoint);
_arrowTransform.setToRotation(-Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftFkPoint);
// The right-side arrow head
_temp.setLocation(_mainLine.getX1() + arrowx, _mainLine.getY1() + arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint1);
_rightArrowLine1.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint1.getX(),
_rightArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint2);
_rightArrowLine2.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint2.getX(),
_rightArrowPoint2.getY());
_arrowTransform.setToRotation(-Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightCardinalityPoint);
_arrowTransform.setToRotation(Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightFkPoint);
}
}
/**
* Updates all coordinates
*
* @todo Optimise. Some info can be cached
* @todo Handle m:n (leftY/rightY etc)
*/
public void update() {
/*
* int leftY = _leftTable.getY() + _leftTable.getColumnY(_leftRole.getColumnMap().getPrimaryKey());
* int rightY;
* if (!_leftRole.getRelation().isMany2Many()) {
* rightY = _rightTable.getY() + _rightTable.getColumnY(_leftRole.getColumnMap().getForeignKey());
* }
* else {
* rightY = _rightTable.getY() + _rightTable.getColumnY(_rightRole.getColumnMap().getPrimaryKey());
* }
*/
int leftY = _leftTable.getY() + _leftColumnY;
int rightY = _rightTable.getY() + _rightColumnY;
// find out which table is farthest west (and east)
JTablePanel westTable;
JTablePanel eastTable;
int westY;
int eastY;
Line2D.Float[] westLines;
Line2D.Float[] eastLines;
int[] westEdgeY;
int[] eastEdgeY;
_leftIsWest = _leftTable.getX() < _rightTable.getX();
if (_leftIsWest) {
westTable = _leftTable;
eastTable = _rightTable;
westY = leftY;
eastY = rightY;
westLines = _leftLines;
eastLines = _rightLines;
westEdgeY = _leftEdgeY;
eastEdgeY = _rightEdgeY;
} else {
westTable = _rightTable;
eastTable = _leftTable;
westY = rightY;
eastY = leftY;
westLines = _rightLines;
eastLines = _leftLines;
westEdgeY = _rightEdgeY;
eastEdgeY = _leftEdgeY;
}
// find out whether the tables are more or less vertically aligned
boolean aligned = (eastTable.getX() - westTable.getX()) < eastTable.getWidth() / 2;
// TODO: handle different widths
int westX;
if (aligned) {
westX = westTable.getX() - 10;
for (int i = 0; i < westEdgeY.length; i++) {
westLines[i].setLine(westX, westY, westTable.getX(), westEdgeY[i] + westTable.getY());
}
} else {
westX = westTable.getX() + westTable.getWidth() + 10;
for (int i = 0; i < westEdgeY.length; i++) {
westLines[i].setLine(
westX, westY, westTable.getX() + westTable.getWidth(), westEdgeY[i] + westTable.getY());
}
}
int eastX = eastTable.getX() - 10;
for (int i = 0; i < eastEdgeY.length; i++) {
eastLines[i].setLine(eastX, eastY, eastTable.getX(), eastEdgeY[i] + eastTable.getY());
}
_mainLine.setLine(westX, westY, eastX, eastY);
setCardinalityPoints();
}
public void line(float x1, float y1, float x2, float y2) {
line.setLine(x1, y1, x2, y2);
strokeShape(line);
}
