/**
* 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;
}
public boolean navigateModel(KeyEvent event, int direction) {
EditPoint focusPoint = getEditPoint();
if (!(focusPoint.focus.getParent() instanceof IEntityPart)) return false;
switch (direction) {
case NORTH:
IEntityPart parentPart = (IEntityPart) focusPoint.focus.getParent();
if (isRootPart(parentPart)) return false;
editPoint.focus = parentPart;
break;
case SOUTH:
List<?> children = focusPoint.focus.getChildren();
if (children.isEmpty()) return false;
editPoint.focus = (IEntityPart) children.get(0);
break;
case EAST:
parentPart = (IEntityPart) focusPoint.focus.getParent();
if (isRootPart(parentPart)) return false;
List<?> siblings = parentPart.getChildren();
int index = siblings.indexOf(editPoint.focus);
if (index < siblings.size() - 1)
editPoint.focus = findModelFirstChild((IEntityPart) siblings.get(index + 1));
else editPoint.focus = parentPart;
break;
case WEST:
parentPart = (IEntityPart) focusPoint.focus.getParent();
if (isRootPart(parentPart)) return false;
siblings = parentPart.getChildren();
index = siblings.indexOf(editPoint.focus);
if (index > 0) editPoint.focus = findModelLastChild((IEntityPart) siblings.get(index - 1));
else editPoint.focus = parentPart;
break;
}
editPoint.caret = 0;
navigateTo(editPoint.focus, event);
return true;
}
public IEntityPart findModelLastChild(IEntityPart parent) {
List<?> children = parent.getChildren();
if (children.isEmpty()) return parent;
return findModelLastChild((IEntityPart) children.get(children.size() - 1));
}