Add path panel separated from solution panel.

src/main/org/insa/graphics/AlgorithmPanel.java

@@ -61,8 +61,8 @@ public class AlgorithmPanel extends JPanel {
         private final boolean graphicVisualization;
         private final boolean textualVisualization;
 
-        public StartActionEvent(Class<? extends AbstractAlgorithm<?>> algoClass, List<Node> nodes, AbstractInputData.Mode mode,
+        public StartActionEvent(Class<? extends AbstractAlgorithm<?>> algoClass, List<Node> nodes, Mode mode,
-                AbstractInputData.ArcFilter arcFilter, boolean graphicVisualization, boolean textualVisualization) {
+                ArcFilter arcFilter, boolean graphicVisualization, boolean textualVisualization) {
             super(AlgorithmPanel.this, START_EVENT_ID, START_EVENT_COMMAND);
             this.nodes = nodes;
             this.mode = mode;
@@ -82,14 +82,14 @@ public class AlgorithmPanel extends JPanel {
         /**
          * @return Mode associated with this event.
          */
-        public AbstractInputData.Mode getMode() {
+        public Mode getMode() {
             return this.mode;
         }
 
         /**
          * @return Arc filter associated with this event.
          */
-        public AbstractInputData.ArcFilter getArcFilter() {
+        public ArcFilter getArcFilter() {
             return this.arcFilter;
         }
 
@@ -168,7 +168,8 @@ public class AlgorithmPanel extends JPanel {
         add(this.nodesInputPanel);
         components.add(this.nodesInputPanel);
 
-        JComboBox<AbstractInputData.ArcFilter> arcFilterSelect = new JComboBox<>(new AbstractInputData.ArcFilter[] { new AbstractInputData.ArcFilter() {
+        JComboBox<AbstractInputData.ArcFilter> arcFilterSelect = new JComboBox<>(
+                new AbstractInputData.ArcFilter[] { new AbstractInputData.ArcFilter() {
                     @Override
                     public boolean isAllowed(Arc arc) {
                         return true;
@@ -265,12 +266,16 @@ public class AlgorithmPanel extends JPanel {
         startAlgoButton.addActionListener(new ActionListener() {
             @Override
             public void actionPerformed(ActionEvent e) {
-                AbstractInputData.Mode mode = lengthModeButton.isSelected() ? AbstractInputData.Mode.LENGTH : AbstractInputData.Mode.TIME;
+                AbstractInputData.Mode mode = lengthModeButton.isSelected() ? AbstractInputData.Mode.LENGTH
+                        : AbstractInputData.Mode.TIME;
 
                 for (ActionListener lis: startActionListeners) {
-                    lis.actionPerformed(new StartActionEvent(
+                    lis.actionPerformed(
-                            AlgorithmFactory.getAlgorithmClass(baseAlgorithm, (String) algoSelect.getSelectedItem()),
+                            new StartActionEvent(
-                            nodesInputPanel.getNodeForInputs(), mode, (AbstractInputData.ArcFilter) arcFilterSelect.getSelectedItem(),
+                                    AlgorithmFactory.getAlgorithmClass(baseAlgorithm,
+                                            (String) algoSelect.getSelectedItem()),
+                                    nodesInputPanel.getNodeForInputs(), mode,
+                                    (AbstractInputData.ArcFilter) arcFilterSelect.getSelectedItem(),
                                     graphicObserver.isSelected(), textObserver.isSelected()));
                 }
             }

src/main/org/insa/graphics/MainWindow.java

@@ -106,9 +106,12 @@ public class MainWindow extends JFrame {
     // Main panel.
     private JSplitPane mainPanel;
 
-    // Shortest path panel
+    // Algorithm panel
     private AlgorithmPanel spPanel;
 
+    // Path panel
+    private PathsPanel pathPanel;
+
     // List of items that cannot be used without a graph
     private ArrayList<JMenuItem> graphLockItems = new ArrayList<JMenuItem>();
 
@@ -183,14 +186,18 @@ public class MainWindow extends JFrame {
         });
         spPanel.setVisible(false);
 
+        this.pathPanel = new PathsPanel(this);
+
         // Add click listeners to both drawing.
         basicDrawing.addDrawingClickListener(spPanel.nodesInputPanel);
         mapViewDrawing.addDrawingClickListener(spPanel.nodesInputPanel);
 
         this.graphChangeListeneres.add(spPanel.nodesInputPanel);
         this.graphChangeListeneres.add(spPanel.solutionPanel);
+        this.graphChangeListeneres.add(pathPanel);
         this.drawingChangeListeners.add(spPanel.nodesInputPanel);
         this.drawingChangeListeners.add(spPanel.solutionPanel);
+        this.drawingChangeListeners.add(pathPanel);
 
         // Create action factory.
         this.currentThread = new ThreadWrapper(this);
@@ -231,11 +238,14 @@ public class MainWindow extends JFrame {
         c.gridx = 0;
         c.gridy = 0;
         c.fill = GridBagConstraints.HORIZONTAL;
+        rightComponent.add(pathPanel, c);
+
+        c.gridy = 1;
         rightComponent.add(spPanel, c);
 
         c = new GridBagConstraints();
         c.gridx = 0;
-        c.gridy = 1;
+        c.gridy = 2;
         c.weightx = 1;
         c.weighty = 1;
         c.fill = GridBagConstraints.BOTH;
@@ -293,7 +303,10 @@ public class MainWindow extends JFrame {
     }
 
     private void displayShortestPathSolution(ShortestPathSolution solution) {
-        spPanel.solutionPanel.addSolution(solution);
+        spPanel.solutionPanel.addSolution(solution, false); // Do not add overlay in the solution panel.
+        if (solution.isFeasible()) {
+            pathPanel.addPath(solution.getPath());
+        }
         spPanel.solutionPanel.setVisible(true);
     }
 
@@ -526,7 +539,7 @@ public class MainWindow extends JFrame {
                     }
                     try {
                         Path path = reader.readPath(graph);
-                        drawing.drawPath(path);
+                        pathPanel.addPath(path);
                     }
                     catch (MapMismatchException exception) {
                         JOptionPane.showMessageDialog(MainWindow.this,

src/main/org/insa/graphics/PathsPanel.java

@@ -0,0 +1,272 @@
+package org.insa.graphics;
+
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.BufferedOutputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import javax.swing.Box;
+import javax.swing.BoxLayout;
+import javax.swing.JButton;
+import javax.swing.JComboBox;
+import javax.swing.JFileChooser;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JTextArea;
+import javax.swing.UIManager;
+import javax.swing.border.EmptyBorder;
+
+import org.insa.graph.Graph;
+import org.insa.graph.Path;
+import org.insa.graph.io.BinaryPathWriter;
+import org.insa.graphics.drawing.Drawing;
+import org.insa.graphics.drawing.overlays.PathOverlay;
+
+public class PathsPanel extends JPanel implements DrawingChangeListener, GraphChangeListener {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
+
+    private class PathBundle {
+
+        // Solution
+        private final Path path;
+
+        // Path Overlay (not final due to redraw)
+        private PathOverlay overlay;
+
+        /**
+         * Create a new bundle with the given path and create a new overlay
+         * corresponding to the path.
+         * 
+         * @param path Path for this bundle, must not be null.
+         * 
+         */
+        public PathBundle(Path path) {
+            this.path = path;
+            this.overlay = drawing.drawPath(this.path);
+        }
+
+        /**
+         * @return Path associated with this bundle.
+         */
+        public Path getPath() {
+            return this.path;
+        }
+
+        /**
+         * @return Overlay associated with this bundle (never null).
+         */
+        public PathOverlay getOverlay() {
+            return this.overlay;
+        }
+
+        /**
+         * Re-draw the current overlay (if any) on the new drawing.
+         * 
+         */
+        public void updateOverlay() {
+            PathOverlay oldOverlay = this.overlay;
+            this.overlay = drawing.drawPath(path);
+            this.overlay.setVisible(oldOverlay.isVisible());
+            oldOverlay.delete();
+        }
+
+        /*
+         * (non-Javadoc)
+         * 
+         * @see java.lang.Object#toString()
+         */
+        public String toString() {
+            return "Path from #" + path.getOrigin().getId() + " to #" + path.getDestination().getId();
+        }
+
+    }
+
+    // Solution
+    private Drawing drawing;
+
+    // Solution selector
+    private final JComboBox<PathBundle> solutionSelect;
+
+    // Map solution -> panel
+    private final JTextArea informationPanel;
+
+    // Current bundle
+    private PathBundle currentBundle = null;
+
+    public PathsPanel(Component parent) {
+        super();
+        setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
+
+        setBorder(new EmptyBorder(15, 15, 15, 15));
+
+        solutionSelect = new JComboBox<>();
+        solutionSelect.setBackground(Color.WHITE);
+        solutionSelect.setAlignmentX(Component.LEFT_ALIGNMENT);
+        add(solutionSelect);
+
+        informationPanel = new JTextArea();
+        informationPanel.setWrapStyleWord(true);
+        informationPanel.setLineWrap(true);
+        informationPanel.setOpaque(true);
+        informationPanel.setFocusable(false);
+        informationPanel.setEditable(false);
+        informationPanel.setBackground(UIManager.getColor("Label.background"));
+        informationPanel.setFont(UIManager.getFont("Label.font"));
+        informationPanel.setBorder(UIManager.getBorder("Label.border"));
+        informationPanel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
+
+        add(Box.createVerticalStrut(8));
+        add(informationPanel);
+
+        JButton clearButton = new JButton("Hide");
+        clearButton.addActionListener(new ActionListener() {
+
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                if (currentBundle != null) {
+                    if (currentBundle.getOverlay().isVisible()) {
+                        currentBundle.getOverlay().setVisible(false);
+                        clearButton.setText("Show");
+                    }
+                    else {
+                        currentBundle.getOverlay().setVisible(true);
+                        clearButton.setText("Hide");
+                    }
+                }
+            }
+        });
+
+        JButton saveButton = new JButton("Save");
+        saveButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                String filepath = System.getProperty("user.dir");
+                filepath += File.separator + String.format("path_%s_%d_%d.path",
+                        currentBundle.getPath().getGraph().getMapId().toLowerCase().replaceAll("[^a-z0-9_]", "_"),
+                        currentBundle.getPath().getOrigin().getId(), currentBundle.getPath().getDestination().getId());
+                JFileChooser fileChooser = new JFileChooser();
+                fileChooser.setSelectedFile(new File(filepath));
+                fileChooser.setApproveButtonText("Save");
+
+                if (fileChooser.showOpenDialog(parent) == JFileChooser.APPROVE_OPTION) {
+                    File file = fileChooser.getSelectedFile();
+                    try {
+                        BinaryPathWriter writer = new BinaryPathWriter(
+                                new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file))));
+                        writer.writePath(currentBundle.getPath());
+                    }
+                    catch (IOException e1) {
+                        JOptionPane.showMessageDialog(parent, "Unable to write path to the selected file.");
+                        e1.printStackTrace();
+                    }
+                }
+            }
+        });
+
+        JPanel buttonPanel = new JPanel();
+        buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.LINE_AXIS));
+        buttonPanel.add(Box.createHorizontalGlue());
+        buttonPanel.add(clearButton);
+        buttonPanel.add(saveButton);
+        buttonPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
+
+        add(Box.createVerticalStrut(4));
+        add(buttonPanel);
+
+        solutionSelect.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+
+                PathBundle bundle = (PathBundle) solutionSelect.getSelectedItem();
+
+                // Handle case when the JComboBox is empty.
+                if (bundle == null) {
+                    return;
+                }
+
+                if (currentBundle != null) {
+                    currentBundle.getOverlay().setVisible(false);
+                }
+
+                updateInformationLabel(bundle);
+                clearButton.setText("Hide");
+                bundle.getOverlay().setVisible(true);
+                currentBundle = bundle;
+            }
+        });
+
+        // Default hidden
+        this.setVisible(false);
+
+    }
+
+    public void addPath(Path path) {
+        PathBundle bundle = new PathBundle(path);
+        solutionSelect.addItem(bundle);
+        solutionSelect.setSelectedItem(bundle);
+
+        this.setVisible(true);
+    }
+
+    protected void updateInformationLabel(PathBundle bundle) {
+        String info = "";
+        info += String.format("Length = %.3f kilometers, duration = ", bundle.getPath().getLength() / 1000.);
+        double time = bundle.getPath().getMinimumTravelTime();
+        int hours = (int) (time / 3600);
+        int minutes = (int) (time / 60) % 60;
+        int seconds = ((int) time) % 60;
+        info += String.format("%d hours, %d minutes, %d seconds.", hours, minutes, seconds);
+        informationPanel.setText(info);
+    }
+
+    @Override
+    public void setEnabled(boolean enabled) {
+        super.setEnabled(enabled);
+        solutionSelect.setEnabled(enabled);
+
+        if (enabled) {
+            // Trigger event
+            solutionSelect.actionPerformed(null);
+        }
+        else {
+            PathBundle bundle = (PathBundle) this.solutionSelect.getSelectedItem();
+            if (bundle != null) {
+                bundle.getOverlay().setVisible(false);
+            }
+        }
+    }
+
+    @Override
+    public void newGraphLoaded(Graph graph) {
+        for (int i = 0; i < this.solutionSelect.getItemCount(); ++i) {
+            this.solutionSelect.getItemAt(i).getOverlay().delete();
+        }
+        this.solutionSelect.removeAllItems();
+        this.currentBundle = null;
+        this.setVisible(false);
+    }
+
+    @Override
+    public void onDrawingLoaded(Drawing oldDrawing, Drawing newDrawing) {
+        if (newDrawing != drawing) {
+            drawing = newDrawing;
+        }
+    }
+
+    @Override
+    public void onRedrawRequest() {
+        for (int i = 0; i < this.solutionSelect.getItemCount(); ++i) {
+            this.solutionSelect.getItemAt(i).updateOverlay();
+        }
+    }
+
+}

src/main/org/insa/graphics/SolutionPanel.java

@@ -23,7 +23,6 @@ import javax.swing.border.EmptyBorder;
 
 import org.insa.algo.AbstractInputData;
 import org.insa.algo.AbstractSolution;
-import org.insa.algo.shortestpath.ShortestPathSolution;
 import org.insa.graph.Graph;
 import org.insa.graph.Path;
 import org.insa.graphics.drawing.Drawing;
@@ -51,10 +50,12 @@ public class SolutionPanel extends JPanel implements DrawingChangeListener, Grap
          * @param solution Solution for this bundle, must not be null.
          * 
          */
-        public SolutionBundle(AbstractSolution solution) {
+        public SolutionBundle(AbstractSolution solution, boolean createOverlays) {
             this.solution = solution;
+            if (createOverlays) {
                 this.overlays = createOverlaysFromSolution();
             }
+        }
 
         /**
          * @return Solution associated with this bundle.
@@ -77,11 +78,21 @@ public class SolutionPanel extends JPanel implements DrawingChangeListener, Grap
             return this.overlays;
         }
 
+        /**
+         * @return true if this bundle has overlays.
+         */
+        public boolean hasOverlays() {
+            return !this.overlays.isEmpty();
+        }
+
         /**
          * Re-draw the current overlay (if any) on the new drawing.
          * 
          */
         public void updateOverlays() {
+            if (this.overlays.isEmpty()) {
+                return; // This bundle has no overlay.
+            }
             List<PathOverlay> oldOverlays = this.overlays;
             this.overlays = createOverlaysFromSolution();
             for (int i = 0; i < oldOverlays.size(); ++i) {
@@ -153,6 +164,8 @@ public class SolutionPanel extends JPanel implements DrawingChangeListener, Grap
         informationPanel.setFont(UIManager.getFont("Label.font"));
         informationPanel.setBorder(UIManager.getBorder("Label.border"));
         informationPanel.setAlignmentX(JLabel.LEFT_ALIGNMENT);
+
+        add(Box.createVerticalStrut(8));
         add(informationPanel);
 
         JButton clearButton = new JButton("Hide");
@@ -173,42 +186,13 @@ public class SolutionPanel extends JPanel implements DrawingChangeListener, Grap
             }
         });
 
-        JButton saveButton = new JButton("Save");
-        saveButton.addActionListener(new ActionListener() {
-            @Override
-            public void actionPerformed(ActionEvent e) {
-                // String filepath = System.getProperty("user.dir");
-                // filepath += File.separator + String.format("path_%s_%d_%d.path",
-                // currentBundle.getData().getGraph().getMapId().toLowerCase().replaceAll("[^a-z0-9_]",
-                // "_"),
-                // currentBundle.getData().getOrigin().getId(),
-                // currentBundle.getData().getDestination().getId());
-                // JFileChooser fileChooser = new JFileChooser();
-                // fileChooser.setSelectedFile(new File(filepath));
-                // fileChooser.setApproveButtonText("Save");
-                //
-                // if (fileChooser.showOpenDialog(parent) == JFileChooser.APPROVE_OPTION) {
-                // File file = fileChooser.getSelectedFile();
-                // try {
-                // BinaryPathWriter writer = new BinaryPathWriter(
-                // new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file))));
-                // writer.writePath(currentBundle.getSolution().getPath());
-                // }
-                // catch (IOException e1) {
-                // JOptionPane.showMessageDialog(parent, "Unable to write path to the selected
-                // file.");
-                // e1.printStackTrace();
-                // }
-                // }
-            }
-        });
-
         JPanel buttonPanel = new JPanel();
         buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.LINE_AXIS));
         buttonPanel.add(Box.createHorizontalGlue());
         buttonPanel.add(clearButton);
-        buttonPanel.add(saveButton);
         buttonPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
+
+        add(Box.createVerticalStrut(4));
         add(buttonPanel);
 
         solutionSelect.addActionListener(new ActionListener() {
@@ -228,7 +212,7 @@ public class SolutionPanel extends JPanel implements DrawingChangeListener, Grap
                 }
 
                 updateInformationLabel(bundle);
-                buttonPanel.setVisible(bundle.getSolution().isFeasible());
+                buttonPanel.setVisible(bundle.getSolution().isFeasible() && bundle.hasOverlays());
                 clearButton.setText(bundle.getSolution().isFeasible() ? "Hide" : "Show");
 
                 for (PathOverlay overlay: bundle.getOverlays()) {
@@ -241,8 +225,19 @@ public class SolutionPanel extends JPanel implements DrawingChangeListener, Grap
 
     }
 
-    public void addSolution(ShortestPathSolution solution) {
+    public void addSolution(AbstractSolution solution) {
-        SolutionBundle bundle = new SolutionBundle(solution);
+        addSolution(solution, true);
+    }
+
+    /**
+     * Add the given solution to the panel.
+     * 
+     * @param solution the solution to add to the panel
+     * @param createOverlays Whether or not overlay should be created for this
+     *        solution.
+     */
+    public void addSolution(AbstractSolution solution, boolean createOverlays) {
+        SolutionBundle bundle = new SolutionBundle(solution, createOverlays);
         solutionSelect.addItem(bundle);
         solutionSelect.setSelectedItem(bundle);
     }