Adds first version of VisualizationPanel ToolTips, and ToolTip class

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/view/VisualisationInteractor.java

@@ -29,6 +29,7 @@ import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.util.Pair;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.popups.ConnectionCreationDialog;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.popups.LinkCreationDialog;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.popups.SmartDeviceCreationPopUp;
+import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.util.LinkToolTip;
 
 /**
  * Listener which detects User Interaction with the {@link VisualisationPanel},
@@ -39,7 +40,6 @@ import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.popups.SmartDeviceCreationPop
  */
 public class VisualisationInteractor implements MouseInputListener,
 		MouseMotionListener, ActionListener, KeyListener {
-
 	/**
 	 * Smart Home model which should be interacted with
 	 */
@@ -133,12 +133,36 @@ public class VisualisationInteractor implements MouseInputListener,
 	 */
 	private boolean draggedDeviceWasSelected = false;
 	
-	public static final byte NOTHING = 0; 
+	/**
+	 * No interaction
+	 */
+	public static final byte NOTHING = 0;
+	
+	/**
+	 * Right-click menu is shown
+	 */
 	public static final byte RIGHTCLICK_MENU = 1; 
+	
+	/**
+	 * Drag of multiple selected devices
+	 */
 	public static final byte SELECTED_DRAG = 2;
+	
+	/**
+	 * drag to create connection
+	 */
 	public static final byte DRAG_CONNECTION = 3;
+	
+	/**
+	 * Drag to select multiple devices
+	 */
 	public static final byte DRAG_SELECT = 4; 
+	
+	/**
+	 * Devices are selected on the screen
+	 */
 	public static final byte SELECTED = 5;
+	
 	/**
 	 * Mode, which action is currently executed
 	 */
@@ -150,7 +174,9 @@ public class VisualisationInteractor implements MouseInputListener,
 	private SmartDevice clicked = null;
 	
 	
-
+	/**
+	 * Device where the current connection is dragged from
+	 */
 	public SmartDevice connectionFrom = null;
 
 	/**
@@ -158,6 +184,8 @@ public class VisualisationInteractor implements MouseInputListener,
 	 */
 	public boolean controlDown = false;
 
+	private LinkToolTip toolTip;
+	
 	/**
 	 * Creates a new VisualisationInteractor
 	 *
@@ -175,6 +203,7 @@ public class VisualisationInteractor implements MouseInputListener,
 		this.controller = controller;
 		this.panel = panel;
 		this.config = controller.getControllerConfiguration();
+		this.toolTip = new LinkToolTip();
 
 		initializeRightClickMenu();
 	}
@@ -568,7 +597,47 @@ public class VisualisationInteractor implements MouseInputListener,
 	}
 	
 	@Override
-	public void mouseMoved(MouseEvent e) {}
+	public void mouseMoved(MouseEvent e) {
+		/**
+		 * Check Hover on Link
+		 */
+		Link l = checkHoverOnLink(e.getX(),e.getY());
+		if(l != null){
+			if(l != toolTip.getLink() || !toolTip.isEnabled()){
+				toolTip.setText("Link "+l.getName());
+				toolTip.setLink(l);
+				toolTip.setX(e.getX());
+				toolTip.setY(e.getY());
+				toolTip.setEnabled(true);
+				panel.update(null, null);
+			}
+		}else{
+			if(toolTip.getLink()!=null || toolTip.isEnabled()){
+				toolTip.setLink(null);
+				toolTip.setEnabled(false);
+				panel.update(null, null);
+			}
+		}
+	}
+
+	private Link checkHoverOnLink(int x, int y) {
+		// Check is device is inside visualization radius
+		int smallRadius = config.getDeviceVisualizationRadius();
+		int radius =  smallRadius + config.getLinkRadius();
+		for (SmartDevice d : model.getDevices()) {
+			//In DeviceRadius + Link Radius ?
+			if (Math.abs(d.getX() - x) < radius && Math.abs(d.getY() - y) < radius) {
+				//Outside of device ?
+				if(!d.getLinks().isEmpty())
+					return d.getLinks().get(0);
+				if (Math.abs(d.getX() - x) >= smallRadius && Math.abs(d.getY() - y) >= smallRadius) {
+					//TODO: +Link Detection & Radius
+					
+				}
+			}
+		}
+		return null;
+	}
 
 	@Override
 	public void mouseEntered(MouseEvent e) {}
@@ -803,4 +872,11 @@ public class VisualisationInteractor implements MouseInputListener,
 
 		this.panel.add(rightClickMenu);
 	}
+
+	/**
+	 * @return the toolTip
+	 */
+	public LinkToolTip getToolTip() {
+		return toolTip;
+	}
 }

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/view/VisualisationPanel.java

@@ -20,6 +20,7 @@ import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.Port;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.SmartDevice;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.util.Pair;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.VisualisationInteractor;
+import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.util.LinkToolTip;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.util.Utility;
 
 /**
@@ -118,6 +119,8 @@ public class VisualisationPanel extends JPanel implements Observer {
 		
 		paintDrag(g);
 		
+		paintToolTip(g);
+		
 		g.setColor(Color.RED);
 		String modus;
 		switch (interactor.mode) {
@@ -154,7 +157,7 @@ public class VisualisationPanel extends JPanel implements Observer {
 	 * @param g
 	 *            the Graphics object to visualize on
 	 */
-	public void paintDevices(Graphics g) {
+	protected void paintDevices(Graphics g) {
 		/*
 		 * Visualization calculations for all devices
 		 */
@@ -278,7 +281,7 @@ public class VisualisationPanel extends JPanel implements Observer {
 	 * @param g
 	 *            the Graphics object to visualize on
 	 */
-	private void paintConnections(Graphics g) {
+	protected void paintConnections(Graphics g) {
 		//Values for dragging of multiple Devices
 		int x_offset = 0;
 		int y_offset = 0;
@@ -385,10 +388,10 @@ public class VisualisationPanel extends JPanel implements Observer {
 	}
 	
 	/**
-	 * Paints the 
-	 * @param g
+	 * Paints the new dragged Connection 
+	 * @param g graphics of this panel
 	 */
-	public void paintDrag(Graphics g){
+	protected void paintDrag(Graphics g){
 		if(interactor.mode!=VisualisationInteractor.DRAG_SELECT)
 			return;	
 		int low_x = Math.min(interactor.dragged_x, interactor.dragged_x_start);
@@ -399,6 +402,62 @@ public class VisualisationPanel extends JPanel implements Observer {
 		g.drawRect(low_x, low_y, high_x-low_x, high_y-low_y);
 
 	}
+	
+	/**
+	 * Paints the link ToolTip
+	 * @param g graphics of this panel
+	 */
+	protected void paintToolTip(Graphics g) {
+		/**
+		 * ToolTip which is visualized
+		 */
+		LinkToolTip toolTip = interactor.getToolTip();
+
+		if (toolTip.isEnabled()) {
+			/**
+			 * free space around the ToolTipText
+			 */
+			int border = 2;
+			/**
+			 * Width of the text (multiLine later ?)
+			 */
+			int textWidth = g.getFontMetrics().stringWidth(toolTip.getText()) + 2 * border;
+			/**
+			 * Height of the Text
+			 */
+			int textHeigth = 12 + 2 * border;
+			/**
+			 * top left x position of the ToolTip
+			 */
+			int fixXPos = toolTip.getX();
+			/**
+			 * top left y position of the ToolTip
+			 */
+			int fixYPos = toolTip.getY();
+			
+			//Check position that toolTip stays in bound
+			if (fixXPos < 0) {
+				fixXPos = 0;
+			} else if (fixXPos + textWidth >= this.getWidth()) {
+				fixXPos -= (fixXPos + textWidth + 1) - this.getWidth();
+			}
+			if (fixYPos < 0){
+				fixYPos = 0;
+			}
+			else if(fixYPos + textHeigth >= this.getHeight()) {
+				fixYPos -= (fixYPos + textHeigth + 1) - this.getHeight();
+			}
+			//Paint background (toolTip Color (light yellow/brown))
+			g.setColor(new Color(255, 255, 225));
+			g.fillRect(fixXPos, fixYPos, textWidth, textHeigth);
+			//Paint black surrounding rectangle
+			g.setColor(Color.BLACK);
+			g.drawRect(fixXPos, fixYPos, textWidth, textHeigth);
+			//Draw the ToolTip text
+			g.drawString(toolTip.getText(), fixXPos + 2, fixYPos + 12);
+		}
+	}
+	
 	@Override
 	public void update(Observable o, Object arg) {
 		repaint();

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/view/util/LinkToolTip.java

@@ -0,0 +1,129 @@
+package de.tu_darmstadt.tk.SmartHomeNetworkSim.view.util;
+
+import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.Link;
+import de.tu_darmstadt.tk.SmartHomeNetworkSim.view.VisualisationPanel;
+
+/**
+ * Class to store information of ToolTips on the {@link VisualisationPanel}
+ *
+ * @author Andreas T. Meyer-Berg
+ */
+public class LinkToolTip {
+	
+	/**
+	 * Text of the toolTip
+	 */
+	private String text;
+	/**
+	 * x Position
+	 */
+	private int x;
+	/**
+	 * y Position
+	 */
+	private int y;
+	/**
+	 * Visible & enabled ?
+	 */
+	private boolean enabled;
+	/**
+	 * Link which is described
+	 */
+	private Link link;
+	
+		/**
+		 * Creates a new ToolTip for the given Link
+		 * @param link Link which is represented
+		 * @param x x location
+		 * @param y y location
+		 */
+		public LinkToolTip(Link link, int x, int y) {
+			this.link = link;
+			this.x = x;
+			this.y = y;
+			this.enabled = true;
+			this.text = "Link specific text";
+		}
+		
+		/**
+		 * Creates a new ToolTip
+		 */
+		public LinkToolTip() {
+			this.link = null;
+			this.x = 0;
+			this.y = 0;
+			this.enabled = false;
+			this.text = "Link specific text";
+		}
+
+		/**
+		 * @return the text
+		 */
+		public String getText() {
+			return text;
+		}
+
+		/**
+		 * @param text the text to set
+		 */
+		public void setText(String text) {
+			this.text = text;
+		}
+
+		/**
+		 * @return the x
+		 */
+		public int getX() {
+			return x;
+		}
+
+		/**
+		 * @param x the x to set
+		 */
+		public void setX(int x) {
+			this.x = x;
+		}
+
+		/**
+		 * @return the y
+		 */
+		public int getY() {
+			return y;
+		}
+
+		/**
+		 * @param y the y to set
+		 */
+		public void setY(int y) {
+			this.y = y;
+		}
+
+		/**
+		 * @return the enabled
+		 */
+		public boolean isEnabled() {
+			return enabled;
+		}
+
+		/**
+		 * @param enabled the enabled to set
+		 */
+		public void setEnabled(boolean enabled) {
+			this.enabled = enabled;
+		}
+
+		/**
+		 * @return the link
+		 */
+		public Link getLink() {
+			return link;
+		}
+
+		/**
+		 * @param link the link to set
+		 */
+		public void setLink(Link link) {
+			this.link = link;
+		}
+	
+}