ProgrammingLife2015 · maartentbm · Jun 16, 2015 · Jun 14, 2015 · Jun 15, 2015 · Jun 15, 2015
diff --git a/src/main/java/nl/tudelft/ti2806/pl1/gui/Event.java b/src/main/java/nl/tudelft/ti2806/pl1/gui/Event.java
@@ -158,6 +158,21 @@ public void actionPerformed(final ActionEvent e) {
 		}
 	},
 
+	/** Reset graph to original representation. **/
+	RESET_GRAPH {
+		@Override
+		public void actionPerformed(final ActionEvent e) {
+			window.getContent().getGraphPanel().applyZoomLevel(0);
+		}
+	},
+
+	HELP {
+		@Override
+		public void actionPerformed(final ActionEvent e) {
+			window.getHelpDialog().setVisible(true);
+		}
+	},
+
 	/**
 	 * 
 	 */
@@ -175,6 +190,30 @@ public void actionPerformed(final ActionEvent e) {
 		@Override
 		public void actionPerformed(final ActionEvent e) {
 		}
+	},
+	/**
+	 * 
+	 */
+	NEXTZOOMLEVEL {
+		@Override
+		public void actionPerformed(final ActionEvent e) {
+			window.getContent()
+					.getGraphPanel()
+					.applyZoomLevel(
+							window.getContent().getGraphPanel().getZoomLevel() + 1);
+		}
+	},
+	/**
+	 * 
+	 */
+	PREVIOUSZOOMLEVEL {
+		@Override
+		public void actionPerformed(final ActionEvent e) {
+			window.getContent()
+					.getGraphPanel()
+					.applyZoomLevel(
+							window.getContent().getGraphPanel().getZoomLevel() - 1);
+		}
 	};
 
 	/**
@@ -260,4 +299,10 @@ public static void statusBarMid(final String message) {
 		window.getStatusBar().mid(message);
 	}
 
+	@Override
+	public void actionPerformed(final ActionEvent e) {
+		// TODO Auto-generated method stub
+
+	}
+
 }
diff --git a/src/main/java/nl/tudelft/ti2806/pl1/gui/HelpDialog.java b/src/main/java/nl/tudelft/ti2806/pl1/gui/HelpDialog.java
@@ -0,0 +1,104 @@
+package nl.tudelft.ti2806.pl1.gui;
+
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.GridBagLayout;
+import java.io.InputStream;
+import java.util.Scanner;
+
+import javax.swing.JDialog;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JTabbedPane;
+
+import com.horstmann.corejava.GBC;
+
+/**
+ * @author Marissa, Maarten
+ * @since 15-6-2015
+ */
+public class HelpDialog extends JDialog {
+
+	/** The serial version UID. */
+	private static final long serialVersionUID = -4612253023180773554L;
+
+	/** The size of the help dialog. */
+	private static final Dimension SIZE = new Dimension(400, 300);
+
+	/** The file name of the source text for the 'Using DNApp' tab. */
+	private static final String USING_DNAPP_HELP_FILE = "usingDNApp.help";
+
+	/** The content panel. */
+	private JPanel content;
+
+	/** The tabs. */
+	private JTabbedPane tabs;
+
+	/**
+	 * Initialize the help dialog.
+	 * 
+	 * @param window
+	 *            The parent application window.
+	 */
+	public HelpDialog(final Window window) {
+		super(window);
+		this.setTitle("Help");
+		setLayout(new BorderLayout());
+		setPreferredSize(SIZE);
+		setMinimumSize(SIZE);
+
+		content = new JPanel(new BorderLayout());
+
+		tabs = new JTabbedPane();
+		tabs.addTab("Using DN/App", makeUsingDNApp());
+		tabs.addTab("Keyboard shortcuts", makeShortcuts());
+
+		content.add(tabs, BorderLayout.CENTER);
+
+		add(content, BorderLayout.CENTER);
+	}
+
+	/**
+	 * @return The panel with information about how to use this application.
+	 */
+	private JPanel makeUsingDNApp() {
+		JPanel ret = new JPanel(new BorderLayout());
+		InputStream is = HelpDialog.class.getClassLoader().getResourceAsStream(
+				USING_DNAPP_HELP_FILE); // TODO fix...
+		Scanner sc = new Scanner(is, "UTF-8");
+		StringBuilder sb = new StringBuilder("<html>");
+		System.out.println(sc);
+		while (sc.hasNextLine()) {
+			String line = sc.nextLine();
+			sb.append(line).append("<br>");
+			System.out.println("READ LINE = " + line);
+		}
+		sc.close();
+		sb.append("</html>");
+		System.out.println(sb.toString());
+		JLabel info = new JLabel(sb.toString());
+		ret.add(info, BorderLayout.CENTER);
+		return ret;
+	}
+
+	/**
+	 * @return The panel with information about the available shortcuts.
+	 */
+	private JPanel makeShortcuts() {
+		JPanel ret = new JPanel(new GridBagLayout());
+
+		String[][] info = { { "Shortcuts: ", "" }, { "F1", "Help" },
+				{ "CTRL + R", "Reset to default view (zoom level)" },
+				{ "CTRL + C", "Close the application" },
+				{ "CTRL + O", "Open a file" },
+				{ "+", "Go to the next zoomlevel" },
+				{ "-", "Go to the previous zoomlevel" } };
+
+		for (int i = 0; i < info.length; i++) {
+			for (int j = 0; j < info[0].length; j++) {
+				ret.add(new JLabel(info[i][j]), new GBC(j, i));
+			}
+		}
+		return ret;
+	}
+}
diff --git a/src/main/java/nl/tudelft/ti2806/pl1/gui/LoadedMenuItem.java b/src/main/java/nl/tudelft/ti2806/pl1/gui/LoadedMenuItem.java
@@ -0,0 +1,51 @@
+package nl.tudelft.ti2806.pl1.gui;
+
+import javax.swing.JMenuItem;
+
+/**
+ * A menu bar item which is only enabled if a graph is loaded into the graph
+ * panel of a given window.
+ * 
+ * @author Maarten
+ * @since 16-6-2015
+ * 
+ * @see JMenuItem
+ * @see Window
+ */
+public class LoadedMenuItem extends JMenuItem {
+
+	/** The serial version UID. */
+	private static final long serialVersionUID = 1718870799530320365L;
+
+	/** The window. */
+	private Window window;
+
+	/**
+	 * Initialize the menu item.
+	 * 
+	 * @param w
+	 *            The window.
+	 */
+	public LoadedMenuItem(final Window w) {
+		super();
+		this.window = w;
+	}
+
+	// @Override
+	// public boolean isEnabled() {
+	// if(window == null) {
+	// System.out.println("WIN NULL");
+	// return super.isEnabled();
+	// }
+	// return window.getContent().isGraphLoaded();
+	// }
+
+	@Override
+	public boolean isVisible() {
+		if (window == null) {
+			System.out.println("WIN NULL");
+			return super.isEnabled();
+		}
+		return window.getContent().isGraphLoaded();
+	}
+}