Example usage for org.eclipse.jface.viewers ViewerDropAdapter LOCATION_BEFORE

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers ViewerDropAdapter LOCATION_BEFORE.

Prototype

int LOCATION_BEFORE

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Document

Constant describing the position of the cursor relative to the target object.

Usage

From source file:ca.uvic.cs.tagsea.dnd.RoutesTreeDragAndDropManager.java

License:Open Source License

@Override
public boolean performDrop(Object data) {
    Object target = getCurrentTarget();

    if (target == null)
        target = getViewer().getInput();

    String[] toDrop = (String[]) data;
    Vector<Waypoint> waypoints = new Vector<Waypoint>();

    for (String wpid : toDrop) {
        Waypoint w = TagSEAPlugin.getDefault().getTagCollection().getWaypointCollection().getWaypoint(wpid);

        if (w != null)
            waypoints.add(w);//ww w .  ja  v  a2s . c om
    }

    TreeViewer viewer = (TreeViewer) getViewer();
    Route route = null;
    int index = 0;

    if (target instanceof Route) {
        index = 0;
        route = (Route) target;
    } else if (target instanceof Waypoint) {
        route = (Route) fItem.getParentItem().getData();

        for (TreeItem item : fItem.getParentItem().getItems()) {
            if (item == fItem)
                break;

            index++;
        }

        int location = getCurrentLocation();

        if (location != ViewerDropAdapter.LOCATION_BEFORE)
            index += 1;
    } else
        return false;

    if (fSelection != null) {
        // we have an internal dnd
        // we will handle this in the drop operation as a special case
        if (getCurrentOperation() == DND.DROP_MOVE) {
            for (int i = waypoints.size() - 1; i >= 0; i--)
                route.getWaypoints().add(index, waypoints.get(i));
        }
    } else {
        for (int i = waypoints.size() - 1; i >= 0; i--)
            route.getWaypoints().add(index, waypoints.get(i));

    }

    viewer.reveal(fItem);
    viewer.refresh();
    fItem = null;
    return true;
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.DependencyManagementSection.java

License:Open Source License

public boolean canDropMove(Object targetObject, Object[] sourceObjects, int targetLocation) {
    // Sanity check
    if (validateDropMoveSanity(targetObject, sourceObjects) == false) {
        return false;
    }//from   ww  w . jav  a  2  s. co m
    // Multiple selection not supported
    String sourcePlugin = (String) sourceObjects[0];
    String targetPlugin = (String) targetObject;
    // Get the secondary dependencies build entry
    BuildEntry entry = getSecondaryDepBuildEntry();
    // Validate entry
    if (entry == null) {
        return false;
    }
    // Validate move
    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        // Get the previous plugin of the target 
        String previousPlugin = entry.getPreviousToken(targetPlugin);
        // Ensure the previous token is not the source
        if (sourcePlugin.equals(previousPlugin)) {
            return false;
        }
        return true;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        // Get the next plugin of the target 
        String nextPlugin = entry.getNextToken(targetPlugin);
        // Ensure the next plugin is not the source
        if (sourcePlugin.equals(nextPlugin)) {
            return false;
        }
        return true;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        // Not supported
        return false;
    }

    return false;
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.DependencyManagementSection.java

License:Open Source License

public void doDropMove(Object targetObject, Object[] sourceObjects, int targetLocation) {
    // Sanity check
    if (validateDropMoveSanity(targetObject, sourceObjects) == false) {
        Display.getDefault().beep();//from www. j av  a 2s .  c o  m
        return;
    }
    // Multiple selection not supported
    String sourcePlugin = (String) sourceObjects[0];
    String targetPlugin = (String) targetObject;
    // Validate move
    if ((targetLocation == ViewerDropAdapter.LOCATION_BEFORE)
            || (targetLocation == ViewerDropAdapter.LOCATION_AFTER)) {
        // Do move
        doDropMove(sourcePlugin, targetPlugin, targetLocation);
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        // Not supported
    }
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExecutionEnvironmentSection.java

License:Open Source License

public boolean canDropMove(Object targetObject, Object[] sourceObjects, int targetLocation) {
    // Sanity check
    if (validateDropMoveSanity(targetObject, sourceObjects) == false) {
        return false;
    }/*from  w  ww  . j a  va 2  s.  c  o  m*/
    // Multiple selection not supported
    ExecutionEnvironment sourceEEObject = (ExecutionEnvironment) sourceObjects[0];
    ExecutionEnvironment targetEEObject = (ExecutionEnvironment) targetObject;
    // Validate model
    if (validateDropMoveModel(sourceEEObject, targetEEObject) == false) {
        return false;
    }
    // Validate move
    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        // Get the previous element of the target 
        RequiredExecutionEnvironmentHeader header = getHeader();
        // Ensure we have a header
        if (header == null) {
            return false;
        }
        // Get the previous element of the target
        PDEManifestElement previousElement = header.getPreviousElement(targetEEObject);
        // Ensure the previous element is not the source
        if (sourceEEObject.equals(previousElement)) {
            return false;
        }
        return true;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        // Get the next element of the target 
        RequiredExecutionEnvironmentHeader header = getHeader();
        // Ensure we have a header
        if (header == null) {
            return false;
        }
        // Get the next element of the target
        PDEManifestElement nextElement = header.getNextElement(targetEEObject);
        // Ensure the next element is not the source
        if (sourceEEObject.equals(nextElement)) {
            return false;
        }
        return true;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        // Not supported
        return false;
    }
    return false;
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExecutionEnvironmentSection.java

License:Open Source License

public void doDropMove(Object targetObject, Object[] sourceObjects, int targetLocation) {
    // Sanity check
    if (validateDropMoveSanity(targetObject, sourceObjects) == false) {
        Display.getDefault().beep();/*from   w w  w .j  a v a  2s.  c  om*/
        return;
    }
    // Multiple selection not supported
    ExecutionEnvironment sourceEEObject = (ExecutionEnvironment) sourceObjects[0];
    ExecutionEnvironment targetEEObject = (ExecutionEnvironment) targetObject;
    // Validate move
    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        // Get the header
        RequiredExecutionEnvironmentHeader header = getHeader();
        // Ensure we have a header
        if (header == null) {
            return;
        }
        // Get the index of the target
        int index = header.indexOf(targetEEObject);
        // Ensure the target index was found
        if (index == -1) {
            return;
        }
        // Add source as sibling of target (before)         
        header.addExecutionEnvironment(sourceEEObject, index);
        return;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        // Get the header
        RequiredExecutionEnvironmentHeader header = getHeader();
        // Ensure we have a header
        if (header == null) {
            return;
        }
        // Get the index of the target
        int index = header.indexOf(targetEEObject);
        // Ensure the target index was found
        if (index == -1) {
            return;
        }
        // Add source as sibling of target (before)         
        header.addExecutionEnvironment(sourceEEObject, index + 1);
        return;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        // NO-OP.  Not supported
    }
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionsSection.java

License:Open Source License

/**
 * @param targetElementObject//from   ww  w .  j  a  v a  2 s.  c om
 * @param sourceElementObject
 * @param targetLocation
 */
private boolean canDropMove(IMonitorElement targetElementObject, IMonitorElement sourceElementObject,
        int targetLocation) {

    // Verify that the source is not the parent of the target
    if (validateDropMoveParent(targetElementObject, sourceElementObject) == false) {
        return false;
    }

    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        IDocumentElementNode previousNode = ((IDocumentElementNode) targetElementObject).getPreviousSibling();
        if (sourceElementObject.equals(previousNode)) {
            return false;
        }
        IMonitorObject targetParentObject = targetElementObject.getParent();
        if ((targetParentObject instanceof IMonitorParent) == false) {
            return false;
        }
        // Paste element as a sibling of the other element (before)
        return validateDropMoveSchema((IMonitorParent) targetParentObject, sourceElementObject);
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        IDocumentElementNode nextNode = ((IDocumentElementNode) sourceElementObject).getPreviousSibling();
        if (targetElementObject.equals(nextNode)) {
            return false;
        }
        IMonitorObject targetParentObject = targetElementObject.getParent();
        if ((targetParentObject instanceof IMonitorParent) == false) {
            return false;
        }
        // Paste element as a sibling of the other element (after)
        return validateDropMoveSchema((IMonitorParent) targetParentObject, sourceElementObject);
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        IDocumentElementNode targetExtensionNode = (IDocumentElementNode) targetElementObject;
        int childCount = targetExtensionNode.getChildCount();
        if (childCount != 0) {
            IDocumentElementNode lastNode = targetExtensionNode.getChildAt(childCount - 1);
            if (sourceElementObject.equals(lastNode)) {
                return false;
            }
        }
        // Paste element as the last child of the element
        return validateDropMoveSchema(targetElementObject, sourceElementObject);
    }
    return false;
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionsSection.java

License:Open Source License

/**
 * @param targetExtensionObject/*  w ww . j  a v  a  2s .c om*/
 * @param sourceElementObject
 * @param targetLocation
 */
private boolean canDropMove(IMonitorExtension targetExtensionObject, IMonitorElement sourceElementObject,
        int targetLocation) {

    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        return false;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        return false;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        IDocumentElementNode targetExtensionNode = (IDocumentElementNode) targetExtensionObject;
        int childCount = targetExtensionNode.getChildCount();
        if (childCount != 0) {
            IDocumentElementNode lastNode = targetExtensionNode.getChildAt(childCount - 1);
            if (sourceElementObject.equals(lastNode)) {
                return false;
            }
        }
        // Paste element as the last child of the extension
        return validateDropMoveSchema(targetExtensionObject, sourceElementObject);
    }
    return false;
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionsSection.java

License:Open Source License

/**
 * @param targetExtensionObject//from w  w w  .j av  a2s.co m
 * @param sourceExtensionObject
 * @param targetLocation
 */
private boolean canDropMove(IMonitorExtension targetExtensionObject, IMonitorExtension sourceExtensionObject,
        int targetLocation) {

    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        IDocumentElementNode previousNode = ((IDocumentElementNode) targetExtensionObject).getPreviousSibling();
        if (sourceExtensionObject.equals(previousNode)) {
            return false;
        }
        // Paste extension as sibling of extension (before)
        return true;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        IDocumentElementNode nextNode = ((IDocumentElementNode) sourceExtensionObject).getPreviousSibling();
        if (targetExtensionObject.equals(nextNode)) {
            return false;
        }
        // Paste extension as sibling of extension (after)
        return true;
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        return false;
    }
    return false;
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionsSection.java

License:Open Source License

/**
 * @param targetExtensionObject/*  w  w w  .  j a  va2 s .  c  om*/
 * @param sourceExtensionObject
 * @param targetLocation
 */
private void doDropMove(IMonitorExtension targetExtensionObject, IMonitorExtension sourceExtensionObject,
        int targetLocation) throws CoreException {
    // Get the model
    IMonitorModelBase model = getPluginModelBase();
    // Ensure the model is defined
    if (model == null) {
        return;
    }
    // Get the plugin base
    IMonitorBase pluginBase = model.getMonitorBase();
    // Ensure the plugin base is a document node
    if ((pluginBase instanceof IDocumentElementNode) == false) {
        return;
    } else if ((pluginBase instanceof MonitorBaseNode) == false) {
        return;
    }
    // Plug-in base node
    IDocumentElementNode pluginBaseNode = (IDocumentElementNode) pluginBase;
    // Source extension node
    IDocumentElementNode sourceExtensionNode = (IDocumentElementNode) sourceExtensionObject;
    // Target extension node
    IDocumentElementNode targetExtensionNode = (IDocumentElementNode) targetExtensionObject;
    // Do drop move
    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        // Adjust all the source object transient field values to
        // acceptable values
        sourceExtensionNode.reconnect(pluginBaseNode, model);
        // Get index of target extension
        int index = (pluginBaseNode.indexOf(targetExtensionNode));
        // Ensure the target index was found
        if (index == -1) {
            return;
        }
        // Paste extension as sibling of extension (before)
        ((MonitorBaseNode) pluginBaseNode).add(sourceExtensionObject, index);
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        // Adjust all the source object transient field values to
        // acceptable values
        sourceExtensionNode.reconnect(pluginBaseNode, model);
        // Get index of target extension
        int index = (pluginBaseNode.indexOf(targetExtensionNode));
        // Ensure the target index was found
        if (index == -1) {
            return;
        }
        // Paste extension as sibling of extension (after)
        ((MonitorBaseNode) pluginBaseNode).add(sourceExtensionObject, index + 1);
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        // NO-OP
    }
}

---

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionsSection.java

License:Open Source License

/**
 * @param targetExtensionObject//from w  w w.ja va  2  s  . c o m
 * @param sourceElementObject
 * @param targetLocation
 */
private void doDropMove(IMonitorExtension targetExtensionObject, IMonitorElement sourceElementObject,
        int targetLocation) throws CoreException {
    // Get the model
    IMonitorModelBase model = getPluginModelBase();
    // Ensure the model is defined
    if (model == null) {
        return;
    }
    // Target extension node
    IDocumentElementNode targetExtensionNode = (IDocumentElementNode) targetExtensionObject;
    // Source extension node
    IDocumentElementNode sourceElementNode = (IDocumentElementNode) sourceElementObject;
    // Do drop move
    if (targetLocation == ViewerDropAdapter.LOCATION_BEFORE) {
        // NO-OP
    } else if (targetLocation == ViewerDropAdapter.LOCATION_AFTER) {
        // NO-OP
    } else if (targetLocation == ViewerDropAdapter.LOCATION_ON) {
        // Adjust all the source object transient field values to
        // acceptable values
        sourceElementNode.reconnect(targetExtensionNode, model);
        // Paste element as the last child of the extension
        targetExtensionObject.add(sourceElementObject);
    }
}

---

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