private Point getPointForEnd(PointList points) {
Point point = null;
if (end == End_c.Middle) {
point = points.getMidpoint();
} else if (end == End_c.Start) {
point = points.getFirstPoint();
} else if (end == End_c.End) {
point = points.getLastPoint();
}
return point;
}
@Override
public boolean test() throws Exception {
boolean location = false;
PointList points = ((PolylineConnectionEx) connectionEditPart.getFigure()).getPoints();
if (checkFirstBendpoint) {
location = !initialLocation.equals(points.getFirstPoint());
} else if (checkLastBendpoint) {
location = !initialLocation.equals(points.getLastPoint());
} else if (bendpointPosition >= 0 || bendpointPosition < points.size()) {
location = !initialLocation.equals(points.getPoint(bendpointPosition));
}
return location;
}
private Point getAbsoluteEdgeExtremity(
ConnectionNodeEditPart editPart, boolean isStart, Float[] preferPosition) {
if (editPart == null) {
return null;
}
PointList points = editPart.getConnectionFigure().getPoints().getCopy();
if (points.size() == 2
&& new Point(0, 0).equals(points.getFirstPoint())
&& new Point(100, 100).equals(points.getLastPoint())) {
// not display yet.
if (preferPosition != null) {
if (isStart && preferPosition[0] != null) {
return new Point(0, preferPosition[0].intValue());
} else if (!isStart && preferPosition[1] != null) {
return new Point(0, preferPosition[1].intValue());
}
}
return SequenceUtil.getAbsoluteEdgeExtremity(editPart, isStart, false);
}
return SequenceUtil.getAbsoluteEdgeExtremity(editPart, isStart, true);
}
private void createElementForTerminalSpec(
TerminalSpecification_c autoCreationSpec,
ModelRoot modelRoot,
PointList line,
EditPart newPart,
EditPart targetPart,
final DiagramEditPart diagramEditPart) {
ElementSpecification_c specification =
ElementSpecification_c.getOneGD_ESOnR209(autoCreationSpec);
if (specification != null && request instanceof GraphicsConnectionCreateRequest) {
// deactivate the current tool
ModelTool_c activeTool =
ModelTool_c.ModelToolInstance(
modelRoot,
new ClassQueryInterface_c() {
@Override
public boolean evaluate(Object candidate) {
return ((ModelTool_c) candidate).getActive();
}
});
activeTool.setActive(false);
// find the new tool and activate it
ModelTool_c newTool =
ModelTool_c.getOneCT_MTLOnR103(
specification,
new ClassQueryInterface_c() {
@Override
public boolean evaluate(Object candidate) {
ModelTool_c tool = (ModelTool_c) candidate;
return Model_c.getOneGD_MDOnR100(tool) == diagramEditPart.getModel();
}
});
newTool.setActive(true);
// create the new element
if (specification.getSymboltype().equals("connector")) { // $NON-NLS-1$
// creating a connector
// we want to create the new connector from the
// midpoint of the drawn line to the end of the
// drawn line
PointList newLine = new PointList();
newLine.addPoint(line.getLastPoint());
if (line.size() == 4) {
// rectilinear routing will have a three points
newLine.addPoint(line.getPoint(2));
}
newLine.addPoint(line.getMidpoint());
feedback.setPoints(newLine);
// we also need to adjust the request's source and
// target edit part, we swap the original target as the
// source as if the new connection was drawn from
// the original destination element
request.setTargetEditPart(newPart);
request.setSourceEditPart(targetPart);
// need to update the location in the request for
// those connectors that end on whitespace
request.setLocation(line.getMidpoint());
// we need to configure the proper tool id in the
// request
GraphicsConnectionCreateRequest gRequest = (GraphicsConnectionCreateRequest) request;
gRequest.setToolId(newTool.getTool_id());
CreateConnectionCommand command = new CreateConnectionCommand(request, feedback);
command.disableCropping();
command.execute();
// reset the active tool states
newTool.setActive(false);
activeTool.setActive(true);
} else if (specification.getSymboltype().equals("shape")) { // $NON-NLS-1$
// TODO: support shape auto creation
}
}
// otherwise this is not an auto create specification
}
/**
* Computes clipping rectangle(s) for a given connection. Will consider all enclosing viewports,
* excluding the root viewport.
*/
protected Rectangle[] getEdgeClippingRectangle(Connection connection) {
// start with clipping the connection at its original bounds
Rectangle clipRect = getAbsoluteBoundsAsCopy(connection);
// in case we cannot infer source and target of the connection (e.g.
// if XYAnchors are used), returning the bounds is all we can do
ConnectionAnchor sourceAnchor = connection.getSourceAnchor();
ConnectionAnchor targetAnchor = connection.getTargetAnchor();
if (sourceAnchor == null
|| sourceAnchor.getOwner() == null
|| targetAnchor == null
|| targetAnchor.getOwner() == null) {
return new Rectangle[] {clipRect};
}
// source and target figure are known, see if there is common
// viewport
// the connection has to be clipped at.
IFigure sourceFigure = sourceAnchor.getOwner();
IFigure targetFigure = targetAnchor.getOwner();
Viewport nearestEnclosingCommonViewport =
ViewportUtilities.getNearestCommonViewport(sourceFigure, targetFigure);
if (nearestEnclosingCommonViewport == null) {
return new Rectangle[] {clipRect};
}
// if the nearest common viewport is not the root viewport, we may
// start with clipping the connection at this viewport.
if (nearestEnclosingCommonViewport != getRootViewport()) {
clipRect.intersect(getNodeClippingRectangle(nearestEnclosingCommonViewport));
}
// if the nearest common viewport of source and target is not
// simultaneously
// the nearest enclosing viewport of source and target respectively, the
// connection has to be further clipped (the connection may even not be
// visible at all)
Viewport nearestEnclosingSourceViewport =
ViewportUtilities.getNearestEnclosingViewport(sourceFigure);
Viewport nearestEnclosingTargetViewport =
ViewportUtilities.getNearestEnclosingViewport(targetFigure);
if (nearestEnclosingSourceViewport != nearestEnclosingTargetViewport) {
// compute if source and target anchor are visible
// within the nearest common enclosing viewport (which may
// itself be nested in other viewports).
Rectangle sourceClipRect = getAbsoluteBoundsAsCopy(connection);
if (nearestEnclosingSourceViewport != nearestEnclosingCommonViewport) {
clipAtViewports(
sourceClipRect,
ViewportUtilities.getViewportsPath(
nearestEnclosingSourceViewport, nearestEnclosingCommonViewport, false));
}
Rectangle targetClipRect = getAbsoluteBoundsAsCopy(connection);
if (nearestEnclosingTargetViewport != nearestEnclosingCommonViewport) {
clipAtViewports(
targetClipRect,
ViewportUtilities.getViewportsPath(
nearestEnclosingTargetViewport, nearestEnclosingCommonViewport, false));
}
PointList absolutePointsAsCopy = getAbsolutePointsAsCopy(connection);
boolean sourceAnchorVisible =
sourceClipRect.getExpanded(PRIVATE_INSETS).contains(absolutePointsAsCopy.getFirstPoint());
boolean targetAnchorVisible =
targetClipRect.getExpanded(PRIVATE_INSETS).contains(absolutePointsAsCopy.getLastPoint());
if (!sourceAnchorVisible || !targetAnchorVisible) {
// one (or both) of source or target anchor is invisible
// within the nearest common viewport, so up to now
// we regard the edge as invisible.
return new Rectangle[] {};
// TODO: We could come up with a more decent strategy here,
// which also computes clipping fragments in those cases
// where source/target are not visible but the edge
// intersects with the enclosing source/target viewport's
// parents bounds.
} else {
// both ends are visible, so just return what we have
// computed before
// (clipping at nearest enclosing viewport)
return new Rectangle[] {clipRect};
}
} else {
// source and target share the same enclosing viewport, so just
// return what we have computed before (clipping at nearest
// enclosing viewport)
return new Rectangle[] {clipRect};
}
}