Examples with GraphConnection org.eclipse.zest.core.widgets.GraphConnection used on opensource projects

Example 1 with GraphConnection

use of org.eclipse.zest.core.widgets.GraphConnection in project archi by archimatetool.

the class AbstractStylingModelFactory method createConnection.

/*
     * (non-Javadoc)
     * 
     * @see org.eclipse.zest.core.internal.graphmodel.IStylingGraphModelFactory#
     * createConnection(org.eclipse.zest.core.internal.graphmodel.GraphModel,
     * java.lang.Object, java.lang.Object, java.lang.Object)
     */
@Override
public GraphConnection createConnection(Graph graph, Object element, Object source, Object dest) {
    if (source == null || dest == null) {
        return null;
    }
    GraphConnection oldConnection = viewer.getGraphModelConnection(element);
    GraphNode sn = viewer.getGraphModelNode(source);
    GraphNode dn = viewer.getGraphModelNode(dest);
    if (oldConnection != null) {
        if (sn != oldConnection.getSource() || dn != oldConnection.getDestination()) {
            viewer.removeGraphModelConnection(oldConnection);
        } else {
            styleItem(oldConnection);
            return oldConnection;
        }
    }
    IFigureProvider figureProvider = null;
    if (getLabelProvider() instanceof IFigureProvider) {
        figureProvider = (IFigureProvider) getLabelProvider();
    }
    if (sn == null) {
        IFigure figure = null;
        if (figureProvider != null) {
            figure = figureProvider.getFigure(source);
        }
        if (figure != null) {
            sn = createNode(graph, source, figure);
        } else {
            sn = createNode(graph, source);
        }
    }
    if (dn == null) {
        IFigure figure = null;
        if (figureProvider != null) {
            figure = figureProvider.getFigure(dest);
        }
        if (figure != null) {
            dn = createNode(graph, dest, figure);
        } else {
            dn = createNode(graph, dest);
        }
    }
    GraphConnection c = viewer.addGraphModelConnection(element, sn, dn);
    styleItem(c);
    return c;
}

Example 2 with GraphConnection

use of org.eclipse.zest.core.widgets.GraphConnection in project archi by archimatetool.

the class AbstractStylingModelFactory method adjustCurves.

/**
 * Takes a list of IGraphModelConnections and adjusts the curve depths and
 * the bezier curves based on the number of curves in the list.
 *
 * @param connections
 * @param size
 *            + * total number of arcs - may be bigger then connections.size
 */
protected void adjustCurves(List connections, int size) {
    /*
         * The connections should be curved if source and dest are equal, or
         * there are multiple arcs between two nodes
         */
    for (int i = 0; i < connections.size(); i++) {
        GraphConnection conn = (GraphConnection) connections.get(i);
        int radius = 20;
        if (conn.getSource() == conn.getDestination()) {
            radius = 40;
        } else if (size < 2) {
            radius = 0;
        }
        conn.setCurveDepth((i + 1) * radius);
    }
}

Example 3 with GraphConnection

use of org.eclipse.zest.core.widgets.GraphConnection in project archi by archimatetool.

the class AbstractStylingModelFactory method getConnectionList.

/**
 * @param source
 * @param dest
 * @return
 */
private LinkedList getConnectionList(GraphNode source, GraphNode dest) {
    LinkedList list = new LinkedList();
    Iterator i = source.getSourceConnections().iterator();
    while (i.hasNext()) {
        GraphConnection c = (GraphConnection) i.next();
        if (c.getDestination() == dest) {
            list.add(c);
        }
    }
    return list;
}

Example 4 with GraphConnection

use of org.eclipse.zest.core.widgets.GraphConnection in project archi by archimatetool.

the class GraphModelFactory method refresh.

/*
     * (non-Javadoc)
     * 
     * @see org.eclipse.zest.core.internal.graphmodel.IStylingGraphModelFactory#refresh(org.eclipse.zest.core.internal.graphmodel.GraphModel,
     *      java.lang.Object, boolean)
     */
@Override
public void refresh(Graph graph, Object element, boolean updateLabels) {
    GraphConnection conn = viewer.getGraphModelConnection(element);
    if (conn == null) {
        // did the user send us a node? Check all of the connections on the
        // node.
        GraphNode node = viewer.getGraphModelNode(element);
        if (node != null) {
            List connections = node.getSourceConnections();
            for (Iterator it = connections.iterator(); it.hasNext(); ) {
                GraphConnection c = (GraphConnection) it.next();
                refresh(graph, c.getExternalConnection(), updateLabels);
            }
            connections = node.getTargetConnections();
            for (Iterator it = connections.iterator(); it.hasNext(); ) {
                GraphConnection c = (GraphConnection) it.next();
                refresh(graph, c.getExternalConnection(), updateLabels);
            }
        }
        return;
    }
    Object oldSource = conn.getSource().getData();
    Object oldDest = conn.getDestination().getData();
    Object newSource = getCastedContent().getSource(element);
    Object newDest = getCastedContent().getDestination(element);
    if (!(oldSource.equals(newSource) && oldDest.equals(newDest))) {
        GraphNode internalSource = viewer.getGraphModelNode(newSource);
        GraphNode internalDest = viewer.getGraphModelNode(newDest);
        if (internalSource == null) {
            internalSource = createNode(graph, newSource);
        } else if (updateLabels) {
            styleItem(internalSource);
        }
        if (internalDest == null) {
            internalDest = createNode(graph, newDest);
        } else if (updateLabels) {
            styleItem(internalDest);
        }
        // conn.reconnect(internalSource, internalDest);
        if (updateLabels) {
            styleItem(conn);
        }
    }
}

Example 5 with GraphConnection

use of org.eclipse.zest.core.widgets.GraphConnection in project archi by archimatetool.

the class AbstractStructuredGraphViewer method addGraphModelConnection.

GraphConnection addGraphModelConnection(Object element, GraphNode source, GraphNode target) {
    GraphConnection connection = this.getGraphModelConnection(element);
    if (connection == null) {
        connection = new GraphConnection((Graph) getControl(), SWT.NONE, source, target);
        this.connectionsMap.put(element, connection);
        connection.setData(element);
    }
    return connection;
}