/** A menu popup trigger has been detected. Handle it. */ public void handlePopupTrigger(MouseEvent evt) { int clickX = evt.getX(); int clickY = evt.getY(); SelectableGraphElement clickedElement = graph.findGraphElement(clickX, clickY); if (clickedElement != null) { selection.selectOnly(clickedElement); postMenu(clickedElement, clickX, clickY); } else { postMenu(clickX, clickY); } }
/** A mouse-pressed event. Analyse what we should do with it. */ public void mousePressed(MouseEvent evt) { graphEditor.requestFocus(); int clickX = evt.getX(); int clickY = evt.getY(); SelectableGraphElement clickedElement = graph.findGraphElement(clickX, clickY); notifyPackage(clickedElement); if (clickedElement == null) { // nothing hit if (!isMultiselectionKeyDown(evt)) { selection.clear(); } if (isButtonOne(evt)) marquee.start(clickX, clickY); } else if (isButtonOne(evt)) { // clicked on something if (isMultiselectionKeyDown(evt)) { // a class was clicked, while multiselectionKey was down. if (clickedElement.isSelected()) { selection.remove(clickedElement); } else { selection.add(clickedElement); } } else { // a class was clicked without multiselection if (!clickedElement.isSelected()) { selection.selectOnly(clickedElement); } } if (isDrawingDependency()) { if (clickedElement instanceof Target) rubberBand = new RubberBand(clickX, clickY, clickX, clickY); } else { dragStartX = clickX; dragStartY = clickY; if (clickedElement.isHandle(clickX, clickY)) { resizing = true; } else { moving = true; } } } }
/** The mouse was released. */ public void mouseReleased(MouseEvent evt) { if (isDrawingDependency()) { SelectableGraphElement selectedElement = graph.findGraphElement(evt.getX(), evt.getY()); notifyPackage(selectedElement); graphEditor.repaint(); } rubberBand = null; SelectionSet newSelection = marquee.stop(); // may or may not have had a marquee... if (newSelection != null) { selection.addAll(newSelection); graphEditor.repaint(); } if (moving || resizing) { endMove(); graphEditor.revalidate(); graphEditor.repaint(); } }