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- package de.tu_darmstadt.informatik.tk.scopviz.ui.handlers;
- import java.awt.event.MouseEvent;
- import org.graphstream.ui.geom.Point3;
- import org.graphstream.ui.graphicGraph.GraphicElement;
- import org.graphstream.ui.view.Camera;
- import org.graphstream.ui.view.util.DefaultMouseManager;
- import de.tu_darmstadt.informatik.tk.scopviz.debug.Debug;
- import de.tu_darmstadt.informatik.tk.scopviz.graphs.GraphManager;
- import de.tu_darmstadt.informatik.tk.scopviz.graphs.MyEdge;
- import de.tu_darmstadt.informatik.tk.scopviz.graphs.MyGraph;
- import de.tu_darmstadt.informatik.tk.scopviz.graphs.MyNode;
- import de.tu_darmstadt.informatik.tk.scopviz.main.CreationMode;
- import de.tu_darmstadt.informatik.tk.scopviz.main.EdgeSelectionHelper;
- import de.tu_darmstadt.informatik.tk.scopviz.main.Main;
- import de.tu_darmstadt.informatik.tk.scopviz.ui.PropertiesManager;
- import de.tu_darmstadt.informatik.tk.scopviz.ui.ToolboxManager;
- /**
- * Mouse Manager to handle all Mouse based Interaction on the Graph Display
- *
- * @author Jan Enders
- * @version 1.0
- */
- public class MyMouseManager extends DefaultMouseManager {
- /**
- * A Reference to the GraphManager this MouseManager is attached to for
- * easier Access.
- */
- private GraphManager graphManager;
- /**
- * The Timestamp of when the Camera's View Center was last changed.
- */
- private long lastCamUpdate = 0;
- /**
- * The recorded Position of the Mouse Cursor (in Graph Units) when the Mouse
- * was last clicked.
- */
- private Point3 oldMousePos;
- /**
- * The recorded View Center of the Camera when the Mouse was last clicked.
- */
- private Point3 oldViewCenter;
- /**
- * Constructor, sets Reference to the GraphManager this MouseManager is
- * attached to.
- *
- * @param manager
- * the GraphManager for Reference
- */
- public MyMouseManager(GraphManager manager) {
- this.graphManager = manager;
- }
- /**
- * Gets called whenever a Mouse Button is pressed while the Mouse is not
- * over an Element.
- *
- * @param event
- * the corresponding MouseEvent
- */
- @Override
- protected void mouseButtonPress(MouseEvent event) {
- view.requestFocus();
- Point3 cursorPos = graphManager.getView().getCamera().transformPxToGu(event.getX(), event.getY());
- MyNode n;
- MyGraph nodeProducer = new MyGraph("temp");
- MyEdge selectedEdge = EdgeSelectionHelper.getClosestEdge(cursorPos);
- switch (Main.getInstance().getCreationMode()) {
- // If not trying to create any Nodes or Edges, select the Edge that
- // was clicked on
- case CREATE_NONE:
- if (selectedEdge != null) {
- graphManager.selectEdge(selectedEdge.getId());
- }
- break;
- // Otherwise, create node based on creation Mode
- case CREATE_STANDARD_NODE:
- n = nodeProducer.addNode(Main.getInstance().getUnusedID());
- n.setAttribute("xyz", cursorPos);
- n.setAttribute("ui.class", "standard");
- n.setAttribute("typeofNode", "standard");
- graphManager.addNode(n);
- graphManager.selectNode(n.getId());
- Debug.out("INFORMATION: Added Node with ID " + n.getId() + " at Position (" + cursorPos.x + "/"
- + cursorPos.y + ")", 1);
- break;
- case CREATE_SOURCE_NODE:
- n = nodeProducer.addNode(Main.getInstance().getUnusedID());
- n.setAttribute("xyz", cursorPos);
- n.setAttribute("ui.class", "source");
- n.setAttribute("typeofNode", "source");
- graphManager.addNode(n);
- graphManager.selectNode(n.getId());
- Debug.out("INFORMATION: Added Source Node with ID " + n.getId() + " at Position (" + cursorPos.x + "/"
- + cursorPos.y + ")", 1);
- break;
- case CREATE_SINK_NODE:
- n = nodeProducer.addNode(Main.getInstance().getUnusedID());
- n.setAttribute("xyz", cursorPos);
- n.setAttribute("ui.class", "sink");
- n.setAttribute("typeofNode", "sink");
- graphManager.addNode(n);
- graphManager.selectNode(n.getId());
- Debug.out("INFORMATION: Added Sink Node with ID " + n.getId() + " at Position (" + cursorPos.x + "/"
- + cursorPos.y + ")", 1);
- break;
- case CREATE_PROC_NODE:
- n = nodeProducer.addNode(Main.getInstance().getUnusedID());
- n.setAttribute("xyz", cursorPos);
- n.setAttribute("ui.class", "procEn");
- n.setAttribute("typeofNode", "procEn");
- ToolboxManager.createProcMaxDialog(n);
- graphManager.addNode(n);
- graphManager.selectNode(n.getId());
- Debug.out("INFORMATION: Added ProcEn Node with ID " + n.getId() + " at Position (" + cursorPos.x + "/"
- + cursorPos.y + ")", 1);
- break;
- case CREATE_OPERATOR_NODE:
- n = nodeProducer.addNode(Main.getInstance().getUnusedID());
- n.setAttribute("xyz", cursorPos);
- n.setAttribute("ui.class", "operator");
- n.setAttribute("typeofNode", "operator");
- ToolboxManager.createProcNeedDialog(n);
- graphManager.addNode(n);
- graphManager.selectNode(n.getId());
- Debug.out("INFORMATION: Added Operator Node with ID " + n.getId() + " at Position (" + cursorPos.x + "/"
- + cursorPos.y + ")", 1);
- break;
- default:
- break;
- }
- }
- /**
- * Gets Called whenever a Mouse Button is released while the Mouse is not
- * over an Element.
- *
- * @param event
- * the corresponding MouseEvent
- */
- protected void mouseButtonRelease(MouseEvent event) {
- PropertiesManager.setItemsProperties();
- }
- /**
- * Gets called whenever a Mouse Button is pressed down while the Mouse is
- * over an Element.
- *
- * @param element
- * the element that was clicked on
- * @param event
- * the corresponding MouseEvent
- */
- @Override
- protected void mouseButtonPressOnElement(GraphicElement element, MouseEvent event) {
- view.freezeElement(element, true);
- String id = element.getId();
- // if in Creation Mode, try to create an Edge with the Node that was
- // clicked on
- if (Main.getInstance().getCreationMode() != CreationMode.CREATE_NONE) {
- graphManager.createEdges(id);
- return;
- }
- // otherwise select the Node that was clicked
- graphManager.selectNode(id);
- }
- /**
- * Gets called when a Mouse Button is released after having pressed it down
- * on an Element.
- *
- * @param element
- * the Element that the Mouse Button was pressed on
- * @param event
- * the corresponding MouseEvent
- */
- @Override
- protected void mouseButtonReleaseOffElement(GraphicElement element, MouseEvent event) {
- view.freezeElement(element, false);
- // update the Attributes of a Node after moving it
- PropertiesManager.setItemsProperties();
- }
- // Mouse Listener
- /**
- * Gets called whenever a Mouse Button is pressed down.
- *
- * @param event
- * the corresponding MouseEvent
- */
- @Override
- public void mousePressed(MouseEvent event) {
- // Left Click -> Find out whether the User clicked on an Element
- if (event.getButton() == MouseEvent.BUTTON1) {
- curElement = view.findNodeOrSpriteAt(event.getX(), event.getY());
- if (curElement != null) {
- mouseButtonPressOnElement(curElement, event);
- } else {
- mouseButtonPress(event);
- }
- // Middle Click -> The User wants to Pan the Camera, record the
- // current Position and View Center
- } else if (event.getButton() == MouseEvent.BUTTON3) {
- Camera cam = Main.getInstance().getGraphManager().getView().getCamera();
- oldMousePos = cam.transformPxToGu(event.getX(), event.getY());
- oldViewCenter = cam.getViewCenter();
- }
- }
- /**
- * Gets Called whenever the Mouse is dragged while a Mouse Button is being
- * held down.
- *
- * @param event
- * the corresponding MouseEvent
- */
- @Override
- public void mouseDragged(MouseEvent event) {
- // If the Mouse is dragging an Element, move it
- if (curElement != null) {
- elementMoving(curElement, event);
- // If the Middle Mouse Button is pressed, move the Camera following
- // the dragging gesture
- } else if (event.getButton() == MouseEvent.BUTTON3) {
- Camera cam = Main.getInstance().getGraphManager().getView().getCamera();
- Point3 newMousePos = cam.transformPxToGu(event.getX(), event.getY());
- double offsetX = oldMousePos.x - newMousePos.x;
- double offsetY = oldMousePos.y - newMousePos.y;
- double newX = oldViewCenter.x + offsetX;
- double newY = oldViewCenter.y + offsetY;
- // Only change Camera Position every 50 milliseconds, otherwise the
- // camera does weird things
- long currTime = System.currentTimeMillis();
- if (currTime - lastCamUpdate >= 50) {
- cam.setViewCenter(newX, newY, 0);
- lastCamUpdate = currTime;
- }
- }
- }
- /**
- * Gets called when a Mouse Button is released.
- *
- * @param event
- * the corresponding MouseEvent
- */
- @Override
- public void mouseReleased(MouseEvent event) {
- if (curElement != null) {
- mouseButtonReleaseOffElement(curElement, event);
- curElement = null;
- } else {
- mouseButtonRelease(event);
- }
- }
- }
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