public boolean navigateView(KeyEvent event, int direction) {
EditPoint focusPoint = getEditPoint();
IGEFEditorKit editorKit = (IGEFEditorKit) focusPoint.focus.getModelEntity().wGetEditorKit();
IKeyHandler keyHandler = editorKit.getKeyHandler();
// FIXME workaround for a bug in navigation actions
if (focusPoint.focus instanceof ITextualEntityPart) {
ITextualEntityPart part = (ITextualEntityPart) focusPoint.focus;
int start = part.getSelectionStart();
int end = part.getSelectionEnd();
if (start != -1 && end != -1) {
CaretUpdater.sheduleSyncUpdate(
part.getViewer(),
part.getModelTextEntity(),
direction == PositionConstants.WEST ? start : end,
true);
return true;
} else {
CaretUpdater.sheduleSyncUpdate(
part.getViewer(), part.getModelTextEntity(), part.getCaretPosition(), true);
}
}
editPoint = keyHandler.findNeighbour(this, focusPoint, direction);
if (editPoint == null) return navigateNextSibling(event, direction);
navigateTo(editPoint.focus, event);
return true;
}
/**
* Traverses to the closest EditPart in the given list that is also in the given direction.
*
* @param event the KeyEvent for the keys that were pressed to trigger this traversal
* @param direction PositionConstants.* indicating the direction in which to traverse
*/
boolean navigateNextSibling(KeyEvent event, int direction, List<?> list) {
IEntityPart epStart = getFocusEntityPart();
if (epStart instanceof ITextualEntityPart) {
ITextualEntityPart textualEntityPart = (ITextualEntityPart) epStart;
ITextualFigure textualFigure = textualEntityPart.getTextualFigure();
String text = textualFigure.getText();
int line = CaretUtils.getLineFromPosition(text, textualEntityPart.getCaretPosition());
int lines = CaretUtils.getCaretLines(text);
if ((direction == PositionConstants.WEST && textualEntityPart.getCaretPosition() > 0)
|| (direction == PositionConstants.EAST
&& textualEntityPart.getCaretPosition() < textualEntityPart.getCaretPositions())) {
int position =
textualEntityPart.getCaretPosition() + (direction == PositionConstants.WEST ? -1 : 1);
CaretUpdater.sheduleSyncUpdate(
getViewer(), textualEntityPart.getModelEntity(), position, true);
return true;
} else if ((direction == PositionConstants.NORTH && line > 0)
|| (direction == PositionConstants.SOUTH && line < lines)) {
int dy =
FigureUtilities.getFontMetrics(textualFigure.getFont()).getHeight()
* (direction == PositionConstants.NORTH ? -1 : 1);
Point location = textualFigure.getCaretBounds().getCenter().translate(0, dy);
CaretUpdater.sheduleSyncUpdate(
getViewer(), textualEntityPart.getModelEntity(), location, true);
textualEntityPart.updateCaret(location);
return true;
}
}
if (!(epStart instanceof IGraphicalEntityPart)) return false;
IFigure figure = ((IGraphicalEntityPart) epStart).getFigure();
Point pStart = getNavigationPoint(figure);
figure.translateToAbsolute(pStart);
EditPart next =
findSibling(
list, pStart, direction, epStart); // parent.findSibling(pStart, direction, epStart);
while (next == null) {
if (!(epStart.getParent() instanceof IGraphicalEntityPart)) return false;
epStart = (IGraphicalEntityPart) epStart.getParent();
if (epStart == getViewer().getContents()
|| epStart.getParent() == getViewer().getContents()
|| epStart.getParent() == null) return false;
list = epStart.getParent().getChildren();
next = findSibling(list, pStart, direction, epStart);
}
// next = next.enter(pStart, direction, epStart);1+2
navigateTo(next, event);
return true;
}
