public void lostFocus() {
setBorder(null);
context.getTextEditor().setText("");
context.getTextEditor().setEnabled(false);
context.getTextEditor().removeFocusListener(this);
context.getTextEditor().removeKeyListener(this);
context.setFocused(null);
}
public void focusGained(org.eclipse.swt.events.FocusEvent event) {
VisualTerm previousFocused = context.getFocused();
if (previousFocused != null) previousFocused.lostFocus();
context.setFocused(this);
LineBorder focusBorder = new LineBorder();
focusBorder.setStyle(Graphics.LINE_DASH);
focusBorder.setColor(getColor());
focusBorder.setWidth(1);
setBorder(focusBorder);
context.selectionChanged(this);
if (canModify()) {
try {
String text = termToText();
context.getTextEditor().setText(text);
context.getTextEditor().setEnabled(true);
context.getTextEditor().setSelection(0, text.length());
context.getTextEditor().addKeyListener(this);
context.getTextEditor().setFocus();
Viewport viewport = ((FigureCanvas) getCanvas()).getViewport();
Point p = viewport.getViewLocation();
if (p.y > getLocation().y) {
viewport.setViewLocation(new Point(p.x, getLocation().y));
} else if (p.y + viewport.getSize().height < getLocation().y + getSize().height
&& viewport.getSize().height > getSize().height) {
viewport.setViewLocation(
new Point(p.x, getLocation().y + getSize().height - viewport.getSize().height));
}
if (p.x > getLocation().x) {
viewport.setViewLocation(new Point(getLocation().x, p.y));
} else if (p.x + viewport.getSize().width < getLocation().x + getSize().width
&& viewport.getSize().width > getSize().width) {
viewport.setViewLocation(
new Point(getLocation().x + getSize().width - viewport.getSize().width, p.y));
}
} catch (IOException e) {
e.printStackTrace();
} catch (PrologException e) {
e.printStackTrace();
} catch (TermInstantiationException e) {
e.printStackTrace();
} catch (ExecutionContextException e) {
e.printStackTrace();
}
}
}
@Override
public void setFocused(VisualTerm visualTerm) {
context.setFocused(visualTerm);
}