2006-11-06 Roman Kennke <kennke@aicas.com>

* examples/gnu/classpath/examples/swing/HtmlDemo.java: Changed to implement a minimalistic browser. * examples/gnu/classpath/examples/swing/forms.html, * examples/gnu/classpath/examples/swing/textstyles.html, * examples/gnu/classpath/examples/swing/welcome.html: Some example content.
author: Roman Kennke <roman@kennke.org> 2006-11-06 16:26:52 +0000
committer: Roman Kennke <roman@kennke.org> 2006-11-06 16:26:52 +0000
commit: 9298ce6ef7dceec1e42cd9a977619cc55ad07a3d (patch)
tree: 7f53782e4c0c4d7b4f951579f8943fe99faa0e6c /examples
parent: f8381b2b65b1e467cb43cc6b94fd14bb266baf22 (diff)
download: classpath-9298ce6ef7dceec1e42cd9a977619cc55ad07a3d.tar.gz
4 files changed, 268 insertions, 197 deletions
diff --git a/examples/gnu/classpath/examples/swing/HtmlDemo.java b/examples/gnu/classpath/examples/swing/HtmlDemo.java
index d31d8cc9d..988344f5d 100644
--- a/examples/gnu/classpath/examples/swing/HtmlDemo.java
+++ b/examples/gnu/classpath/examples/swing/HtmlDemo.java
@@ -40,21 +40,22 @@ package gnu.classpath.examples.swing;
 
 import java.awt.BorderLayout;
 import java.awt.Dimension;
-import java.awt.GridLayout;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.net.URL;
 
+import javax.swing.BoxLayout;
 import javax.swing.JButton;
 import javax.swing.JComponent;
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
-import javax.swing.JTextArea;
+import javax.swing.JTextField;
 import javax.swing.JTextPane;
 import javax.swing.SwingUtilities;
-import javax.swing.text.AbstractDocument;
-import javax.swing.text.Element;
-import javax.swing.text.html.HTMLDocument;
+import javax.swing.event.HyperlinkEvent;
+import javax.swing.event.HyperlinkListener;
 
 /**
  * Parses and displays HTML content.
@@ -64,49 +65,36 @@ import javax.swing.text.html.HTMLDocument;
 public class HtmlDemo extends JPanel
 { 
 
+  private class LoadActionListener
+    implements ActionListener
+  {
+
+    public void actionPerformed(ActionEvent event)
+    {
+      String urlStr = url.getText();
+      try
+        {
+          html.setPage(url.getText());
+        }
+      catch (IOException ex)
+        {
+          System.err.println("exception while loading: " + ex);
+          ex.printStackTrace();
+        }
+    }
+  }
+
   /**
    * Setting this to true causes the parsed element structure to be dumped.
    */
   private static final boolean DEBUG = true;
 
-  JTextPane html = new JTextPane();
-
-  JTextArea text = new JTextArea("<html><body>\n"
+  /**
+   * The URL entry field.
+   */
+  JTextField url = new JTextField(); 
 
-      + "<h1>H1 Headline</h1>\n"
-      + "<h2>H2 Headline</h2>\n"
-      + "<h3>H3 Headline</h3>\n"
-      + "<h4>H4 Headline</h3>\n"
-      + "<h5>H5 Headline</h5>\n"
-      + "<h6>H6 Headline</h6>\n"
-      + "<h1>CSS colors via font tag</h1>\n"
-      + "<p>"
-      + "<font color=\"maroon\">maroon</font>\n"
-      + "<font color=\"red\">red</font>\n"
-      + "<font color=\"orange\">orange</font>\n"
-      + "<font color=\"yellow\">yellow</font>\n"
-      + "<font color=\"olive\">olive</font>\n"
-      + "<font color=\"purple\">purlpe</font>\n"
-      + "<font color=\"fuchsia\">fuchsia</font>\n"
-      + "<font color=\"white\">white</font>\n"
-      + "<font color=\"lime\">lime</font>\n"
-      + "<font color=\"green\">green</font>\n"
-      + "<font color=\"navy\">navy</font>\n"
-      + "<font color=\"blue\">blue</font>\n"
-      + "<font color=\"aqua\">aqua</font>\n"
-      + "<font color=\"teal\">teal</font>\n"
-      + "<font color=\"black\">black</font>\n"
-      + "<font color=\"silver\">silver</font>\n"
-      + "<font color=\"gray\">gray</font>\n"
-      + "</p>"
-      + "<h1>Some HTML formatting tags</h1>\n"
-      + "<p>Normal <b>Bold</b> <i>Italic</i> <b><i>Bold + Italic</i></b></p>\n"
-      + "<p><big>Big</big> <em>Emphasized</em> <small>Small</small>\n"
-      + "<strike>Strike</strike> <strong>Strong</strong> <u>Underline</u></p>\n"
-      + "<p>Normal vs <sup>Superscript</sup> vs <sub>Subscript</sub> text</p>\n"
-      + "</body></html>\n");
-  
-  JPanel buttons;
+  JTextPane html = new JTextPane();
   
   int n;
 
@@ -116,7 +104,7 @@ public class HtmlDemo extends JPanel
     html.setContentType("text/html"); // not now.
     createContent();
   }
-  
+
   /**
    * Returns a panel with the demo content. The panel uses a BorderLayout(), and
    * the BorderLayout.SOUTH area is empty, to allow callers to add controls to
@@ -126,158 +114,54 @@ public class HtmlDemo extends JPanel
   private void createContent()
   {
     setLayout(new BorderLayout());
-    
-    JPanel center = new JPanel();
-    GridLayout layout = new GridLayout();
-    layout.setRows(2);
-    center.setLayout(layout);
-    center.add(new JScrollPane(text));
-    center.add(new JScrollPane(html));
-    
-    buttons = new JPanel();
-    
-    JButton parse = new JButton("parse");
-    parse.addActionListener(new ActionListener()
-      {
-        public void actionPerformed(ActionEvent event)
-          {
-            String t = text.getText();
-            System.out.println("HtmlDemo.java.createContent:Parsing started");
-            html.setText(t);
-            System.out.println("HtmlDemo.java.createContent:Parsing completed");
-            if (DEBUG)
-              ((AbstractDocument) html.getDocument()).dump(System.out);
-          }
-      });
-    
-    buttons.add(parse);
-    
-    JButton insertBeforeEnd = new JButton("before end");
-    insertBeforeEnd.addActionListener(new ActionListener()
-      {
-        public void actionPerformed(ActionEvent event)
-          {
-            HTMLDocument doc = (HTMLDocument) html.getDocument();
-            Element el = doc.getElement("insertHere");
-            System.out.println("Element found:"+el);
-            try
-              {
-                doc.insertBeforeEnd(el,"before end "+(n++));
-              }
-            catch (Exception e)
-              {
-                e.printStackTrace();
-              }
-          }
-      });
-    
-    JButton insertBeforeStart = new JButton("before start");
-    insertBeforeStart.addActionListener(new ActionListener()
-      {
-        public void actionPerformed(ActionEvent event)
-          {
-            HTMLDocument doc = (HTMLDocument) html.getDocument();
-            Element el = doc.getElement("insertHere");
-            System.out.println("Element found:"+el);
-            try
-              {
-                doc.insertBeforeStart(el,"before start "+(n++));
-              }
-            catch (Exception e)
-              {
-                e.printStackTrace();
-              }
-          }
-      });
-    
-    JButton insertAfterEnd = new JButton("after end");
-    insertAfterEnd.addActionListener(new ActionListener()
-      {
-        public void actionPerformed(ActionEvent event)
-          {
-            HTMLDocument doc = (HTMLDocument) html.getDocument();
-            Element el = doc.getElement("insertHere");
-            System.out.println("Element found:"+el);
-            try
-              {
-                doc.insertAfterEnd(el,"after end "+(n++));
-              }
-            catch (Exception e)
-              {
-                e.printStackTrace();
-              }
-          }
-      });
-    
-    JButton insertAfterStart = new JButton("after start");
-    insertAfterStart.addActionListener(new ActionListener()
-      {
-        public void actionPerformed(ActionEvent event)
-          {
-            HTMLDocument doc = (HTMLDocument) html.getDocument();
-            Element el = doc.getElement("insertHere");
-            System.out.println("Element found:"+el);
-            try
-              {
-                doc.insertAfterStart(el,"after start "+(n++));
-              }
-            catch (Exception e)
-              {
-                e.printStackTrace();
-              }
-          }
-      });
-    
 
-    JButton setInner = new JButton("inner");
-    setInner.addActionListener(new ActionListener()
+    html.setEditable(false);
+    html.addHyperlinkListener(new HyperlinkListener()
+    {
+
+      public void hyperlinkUpdate(HyperlinkEvent event)
       {
-        public void actionPerformed(ActionEvent event)
+        URL u = event.getURL();
+        if (u != null)
           {
-            HTMLDocument doc = (HTMLDocument) html.getDocument();
-            Element el = doc.getElement("insertHere");
-            System.out.println("Element found:"+el);
+            url.setText(u.toString());
             try
               {
-                doc.setInnerHTML(el,"inner "+(n++));
+                html.setPage(u);
               }
-            catch (Exception e)
+            catch (IOException ex)
               {
-                e.printStackTrace();
+                ex.printStackTrace();
               }
           }
-      });
-    
-    JButton setOuter = new JButton("outer");
-    setOuter.addActionListener(new ActionListener()
+      }
+      
+    });
+
+    JScrollPane scroller = new JScrollPane(html);
+    JPanel urlPanel = new JPanel();
+    urlPanel.setLayout(new BoxLayout(urlPanel, BoxLayout.X_AXIS));
+    url.setMaximumSize(new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE));
+    LoadActionListener action = new LoadActionListener();
+    url.addActionListener(action);
+    urlPanel.add(url);
+    JButton loadButton = new JButton("go");
+    urlPanel.add(loadButton);
+    loadButton.addActionListener(action);
+    add(urlPanel, BorderLayout.NORTH);
+    add(scroller, BorderLayout.CENTER);
+
+    // Load start page.
+    URL startpage = getClass().getResource("forms.html");
+    try
       {
-        public void actionPerformed(ActionEvent event)
-          {
-            HTMLDocument doc = (HTMLDocument) html.getDocument();
-            Element el = doc.getElement("insertHere");
-            System.out.println("Element found:"+el);
-            try
-              {
-                doc.setOuterHTML(el,"outer "+(n++));
-              }
-            catch (Exception e)
-              {
-                e.printStackTrace();
-              }
-          }
-      });
-    
-
-    buttons.add(insertBeforeStart);
-    buttons.add(insertAfterStart);    
-    buttons.add(insertBeforeEnd);
-    buttons.add(insertAfterEnd);
-
-    buttons.add(setInner);
-    buttons.add(setOuter);
-    
-    add(center, BorderLayout.CENTER);
-    add(buttons, BorderLayout.SOUTH);
+        html.setPage(startpage);
+        url.setText(startpage.toString());
+      }
+    catch (IOException ex)
+      {
+        System.err.println("couldn't load page: " + startpage);
+      }
   }
  
   /**
@@ -294,18 +178,6 @@ public class HtmlDemo extends JPanel
        public void run()
        {
          HtmlDemo demo = new HtmlDemo();
-         
-         JButton exit = new JButton("exit");
-         exit.addActionListener(new ActionListener()
-           {
-             public void actionPerformed(ActionEvent event)
-               {
-                 System.exit(0);
-               }
-           });
-         
-         demo.buttons.add(exit);
-         
          JFrame frame = new JFrame();
          frame.getContentPane().add(demo);
          frame.setSize(new Dimension(700, 480));
diff --git a/examples/gnu/classpath/examples/swing/forms.html b/examples/gnu/classpath/examples/swing/forms.html
new file mode 100644
index 000000000..2cfdb4bcc
--- /dev/null
+++ b/examples/gnu/classpath/examples/swing/forms.html
@@ -0,0 +1,69 @@
+<!-- welcome.html -- Some HTML stuff to show Swing HTML
+    Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. -->
+
+<html>
+
+  <head>
+    <title>HTML text styles</title>
+  </head>
+  <body>
+  <a href="welcome.html">Back to start page</a>
+  <h1>Some form elements</h1>
+  <h2>Textarea</h2>
+  <textarea cols="30" rows="5">
+  Hello GNU Classpath world. This text should show up in a text area
+  that has a size of 30 columns and 5 rows
+  </textarea>
+
+  <h2>Buttons</h2>
+  <p>
+  <input type="submit"></input>
+  <input type="reset"></input>
+  <input type="button" value="Some button"></input>
+  </p>
+
+  <h2>Checkboxes and Radiobuttons</h2>
+  <p>
+  <input type="checkbox">Check this!</input>
+  <input type="checkbox">Or this</input>
+  </p>
+  <p>
+  <input type="radio">A radio button</input>
+  <input type="radio">Another radio</input>
+  </p>
+  </body>
+</html>
+\ No newline at end of file
diff --git a/examples/gnu/classpath/examples/swing/textstyles.html b/examples/gnu/classpath/examples/swing/textstyles.html
new file mode 100644
index 000000000..786e18b77
--- /dev/null
+++ b/examples/gnu/classpath/examples/swing/textstyles.html
@@ -0,0 +1,78 @@
+<!-- welcome.html -- Some HTML stuff to show Swing HTML
+    Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. -->
+
+<html>
+
+  <head>
+    <title>HTML text styles</title>
+  </head>
+  <body>
+    <a href="welcome.html">Back to start page</a>
+    <h1>Colors</h1>
+    <p>The following are the 16 named colors in HTML. Of course you can also
+    use all RGB colors by specifying a value in the <code>#RRGGBB</code>
+    notation.</p>
+    <p>
+    <font color="black">Black</font>, <font color="gray">Gray</font>,
+    <font color="maroon">Maroon</font>, <font color="red">Red</font>,
+    <font color="green">Green</font>, <font color="lime">Lime</font>,
+    <font color="olive">Olive</font>, <font color="yellow">Yellow</font>,
+    <font color="navy">Navy</font>, <font color="blue">Blue</font>,
+    <font color="purple">Purple</font>, <font color="fuchsia">Fuchsia</font>,
+    <font color="teal">Teal</font>, <font color="aque">Aqua</font>,
+    <font color="silver">Silver</font>, <font color="white">White</font></p>
+    <h1>Font styles</h1>
+    <p>The following lists the logical and physical font styles that can be set
+     by certain HTML tags</p>
+    <p>
+    <!--<abbr>Abbreviation</abbr>, <acronym>Acronym</acronym>,-->
+       <address>Address</address>, <b>Bold</b>, <big>Big</big>,
+       <cite>Citation</cite>, <code>Code</code>, <del>Deleted</del>,
+        <em>Emphasized<em>, <i>Italic</i>, <ins>Inserted</ins>, <q>Quote</q>,
+        <s>Stroke-Through</s>, <samp>Example</samp>, <small>Small</small>,
+        <strike>Strike</strike>, <strong>Strong</strong>, <sub>Subscript</sub>,
+        <sup>Superscript</sup>, <u>Underlined</u>, <var>Variable</var>
+    </p>
+    <h1>Header Level 1</h1>
+    <h2>Header Level 2</h2>
+    <h3>Header Level 3</h3>
+    <h4>Header Level 4</h4>
+    <h5>Header Level 5</h5>
+    <h6>Header Level 6</h6>
+    <center>Some centered Text</center>
+  </body>
+</html>
+\ No newline at end of file
diff --git a/examples/gnu/classpath/examples/swing/welcome.html b/examples/gnu/classpath/examples/swing/welcome.html
new file mode 100644
index 000000000..62fb51429
--- /dev/null
+++ b/examples/gnu/classpath/examples/swing/welcome.html
@@ -0,0 +1,52 @@
+<!-- welcome.html -- Some HTML stuff to show Swing HTML
+    Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. -->
+
+<html>
+  <head>
+    <title>GNU Classpath HTML Browser</title>
+  </head>
+  <body>
+  <img src="../icons/badge.png">
+  <h1>Welcome to GNU Classpath</h1>
+  <p>These pages are here to demonstrate the HTML rendering capabilities
+   of GNU Classpath's Swing.</p>
+  <ul>
+    <li><a href="textstyles.html">Text styles</li>
+    <li><a href="forms.html">Form elements</li>
+  </ul>
+  </body>
+</html>
+\ No newline at end of file
author	Roman Kennke <roman@kennke.org>	2006-11-06 16:26:52 +0000
committer	Roman Kennke <roman@kennke.org>	2006-11-06 16:26:52 +0000
commit	9298ce6ef7dceec1e42cd9a977619cc55ad07a3d (patch)
tree	7f53782e4c0c4d7b4f951579f8943fe99faa0e6c /examples
parent	f8381b2b65b1e467cb43cc6b94fd14bb266baf22 (diff)
download	classpath-9298ce6ef7dceec1e42cd9a977619cc55ad07a3d.tar.gz