Added a whole UI for browsing the visualizations on the screen.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@263 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/viztool/src/java/com/samskivert/viztool/VizController.java

@@ -0,0 +1,94 @@
+//
+// $Id: VizController.java,v 1.1 2001/08/14 00:45:56 mdb Exp $
+
+package com.samskivert.viztool;
+
+import java.awt.event.ActionEvent;
+import java.awt.print.*;
+
+import com.samskivert.swing.*;
+
+/**
+ * The viz controller manages the user interface and effects actions that
+ * are requested by the user (like moving forward or backward a page).
+ */
+public class VizController extends Controller
+{
+    /** The action command for moving forward one page. */
+    public static final String FORWARD_PAGE = "forward_page";
+
+    /** The action command for moving backward one page. */
+    public static final String BACKWARD_PAGE = "backward_page";
+
+    /** The action command for printing. */
+    public static final String PRINT = "print";
+
+    /** The action command for quitting. */
+    public static final String QUIT = "quit";
+
+    public VizController (VizPanel vpanel)
+    {
+        _vpanel = vpanel;
+
+        // create a print job in case we need to print
+        _job = PrinterJob.getPrinterJob();
+        _format = _job.defaultPage();
+
+        // use sensible margins
+        Paper paper = new Paper();
+        paper.setImageableArea(
+            LEFT_MARGIN, TOP_MARGIN, PAGE_WIDTH, PAGE_HEIGHT);
+        _format.setPaper(paper);
+    }
+
+    public boolean handleAction (ActionEvent action)
+    {
+        String cmd = action.getActionCommand();
+
+        if (cmd.equals(FORWARD_PAGE)) {
+            int pno = _vpanel.getPage();
+            if (pno < _vpanel.getPageCount()-1) {
+                _vpanel.setPage(pno+1);
+            }
+            return true;
+
+        } else if (cmd.equals(BACKWARD_PAGE)) {
+            int pno = _vpanel.getPage();
+            if (pno > 0) {
+                _vpanel.setPage(pno-1);
+            }
+            return true;
+
+        } else if (cmd.equals(PRINT)) {
+            // tell the job to print our visualizer with the format we set
+            // up earlier
+            _job.setPrintable(_vpanel.getVisualizer(), _format);
+
+            // pop up a dialog to control printing
+            if (_job.printDialog()) {
+                try {
+                    // invoke the printing process
+                    _job.print();
+                } catch (PrinterException pe) {
+                    pe.printStackTrace(System.err);
+                }
+            }
+            return true;
+
+        } else if (cmd.equals(QUIT)) {
+            System.exit(0);
+        }
+
+        return false;
+    }
+
+    protected VizPanel _vpanel;
+    protected PrinterJob _job;
+    protected PageFormat _format;
+
+    // these should be configurable...
+    protected static final double LEFT_MARGIN = 72*0.5;
+    protected static final double TOP_MARGIN = 72*0.5;
+    protected static final double PAGE_WIDTH = 72*7.5;
+    protected static final double PAGE_HEIGHT = 72*10;
+}

projects/viztool/src/java/com/samskivert/viztool/VizFrame.java

@@ -1,5 +1,5 @@
 //
-// $Id: VizFrame.java,v 1.4 2001/08/14 00:04:08 mdb Exp $
+// $Id: VizFrame.java,v 1.5 2001/08/14 00:45:56 mdb Exp $
 // 
 // viztool - a tool for visualizing collections of java classes
 // Copyright (C) 2001 Michael Bayne
@@ -23,6 +23,7 @@ package com.samskivert.viztool;
 import java.awt.BorderLayout;
 import javax.swing.*;
 
+import com.samskivert.swing.*;
 import com.samskivert.viztool.viz.HierarchyVisualizer;
 
 /**
@@ -37,17 +38,63 @@ public class VizFrame extends JFrame
         // quit if we're closed
         setDefaultCloseOperation(EXIT_ON_CLOSE);
 
-        JPanel content = new JPanel();
+        // create our controller and panel for displaying visualizations
+        VizPanel vpanel = new VizPanel(viz);
+        VizController vctrl = new VizController(vpanel);
 
-        // put a border around everything
+        // create some control buttons
+        GroupLayout gl = new HGroupLayout(GroupLayout.NONE);
+        gl.setJustification(GroupLayout.RIGHT);
+        JPanel bpanel = new JPanel(gl);
+        JButton btn;
+
+        btn = new JButton("Print");
+        btn.setActionCommand(VizController.PRINT);
+        btn.addActionListener(VizController.DISPATCHER);
+        bpanel.add(btn);
+
+        btn = new JButton("Previous page");
+        btn.setActionCommand(VizController.BACKWARD_PAGE);
+        btn.addActionListener(VizController.DISPATCHER);
+        bpanel.add(btn);
+
+        btn = new JButton("Next page");
+        btn.setActionCommand(VizController.FORWARD_PAGE);
+        btn.addActionListener(VizController.DISPATCHER);
+        bpanel.add(btn);
+
+        btn = new JButton("Quit");
+        btn.setActionCommand(VizController.QUIT);
+        btn.addActionListener(VizController.DISPATCHER);
+        bpanel.add(btn);
+
+        // create a content pane to contain everything
+        JPanel content = new ContentPanel(vctrl);
+        gl = new VGroupLayout(GroupLayout.STRETCH);
+        content.setLayout(gl);
         content.setBorder(BorderFactory.createEmptyBorder(
             BORDER, BORDER, BORDER, BORDER));
-
-        VizPanel panel = new VizPanel(viz);
-        content.add(panel, BorderLayout.CENTER);
-
+        content.add(vpanel);
+        content.add(bpanel, GroupLayout.FIXED);
         setContentPane(content);
     }
 
+    protected static final class ContentPanel
+        extends JPanel
+        implements ControllerProvider
+    {
+        public ContentPanel (VizController ctrl)
+        {
+            _ctrl = ctrl;
+        }
+
+        public Controller getController ()
+        {
+            return _ctrl;
+        }
+
+        protected Controller _ctrl;
+    }
+
     protected static final int BORDER = 5; // pixels
 }

projects/viztool/src/java/com/samskivert/viztool/VizPanel.java

@@ -1,5 +1,5 @@
 //
-// $Id: VizPanel.java,v 1.5 2001/08/14 00:05:03 mdb Exp $
+// $Id: VizPanel.java,v 1.6 2001/08/14 00:45:56 mdb Exp $
 // 
 // viztool - a tool for visualizing collections of java classes
 // Copyright (C) 2001 Michael Bayne
@@ -36,6 +36,7 @@ public class VizPanel extends JPanel
      */
     public VizPanel (HierarchyVisualizer viz)
     {
+        // we'll need these later
         _viz = viz;
 
         // set the font
@@ -86,6 +87,22 @@ public class VizPanel extends JPanel
         }
     }
 
+    /**
+     * Returns the index of the page that we're currently displaying.
+     */
+    public int getPage ()
+    {
+        return _currentPage;
+    }
+
+    /**
+     * Returns the visualizer we're currently displaying.
+     */
+    public HierarchyVisualizer getVisualizer ()
+    {
+        return _viz;
+    }
+
     protected HierarchyVisualizer _viz;
     protected int _currentPage = 0;