2006-06-09 Audrius Meskauskas <AudriusA@Bioinformatics.org>

* gnu/javax/swing/text/html/parser/SmallHtmlAttributeSet.java (constructor): Do not lowercase the values. * javax/swing/text/html/HTMLDocument.java (HTMLReader.addSpecialElement): Implemented. * examples/gnu/classpath/examples/swing/HtmlDemo.java: New file.
author: Audrius Meskauskas <audriusa@Bioinformatics.org> 2006-06-09 12:51:22 +0000
committer: Audrius Meskauskas <audriusa@Bioinformatics.org> 2006-06-09 12:51:22 +0000
commit: 5d6bfeb57b947a5e41afd1fda928371bc9586c71 (patch)
tree: 0e78e814bed23aefbc034d970c4feb25912d643a
parent: cd6642bb405aeebdc0ec9ec65b79acd6b76734d8 (diff)
download: classpath-5d6bfeb57b947a5e41afd1fda928371bc9586c71.tar.gz
4 files changed, 204 insertions, 10 deletions
diff --git a/ChangeLog b/ChangeLog
index 8daf2dccf..b033e9bd1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2006-06-09  Audrius Meskauskas  <AudriusA@Bioinformatics.org>
+
+	* gnu/javax/swing/text/html/parser/SmallHtmlAttributeSet.java
+	(constructor): Do not lowercase the values.
+	* javax/swing/text/html/HTMLDocument.java
+	(HTMLReader.addSpecialElement): Implemented.
+	* examples/gnu/classpath/examples/swing/HtmlDemo.java: New file.
+
 2006-06-09  Raif S. Naffah  <raif@swiftdsl.com.au>
 
 	On behalf of Matthew Wringe <mwringe@redhat.com>
diff --git a/examples/gnu/classpath/examples/swing/HtmlDemo.java b/examples/gnu/classpath/examples/swing/HtmlDemo.java
new file mode 100644
index 000000000..6ac626717
--- /dev/null
+++ b/examples/gnu/classpath/examples/swing/HtmlDemo.java
@@ -0,0 +1,165 @@
+/* HtmlDemo.java -- HTML viewer demo
+   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. */
+
+
+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 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.JTextPane;
+import javax.swing.SwingUtilities;
+
+/**
+ * Parses and displays HTML content.
+ * 
+ * @author Audrius Meskauskas (audriusa@bioinformatics.org)
+ */
+public class HtmlDemo extends JPanel
+{ 
+  
+  JTextPane html = new JTextPane();
+
+  //JTextArea text = new JTextArea("<html><body><p><img src='' alt='alt txt'></p></body></html>");
+  JTextArea text = new JTextArea("<html><body><p>nor<font color=red>ma</font>l<sup>sup</sup>normal<sub>sub</sub>normal</p></body></html>");
+  
+  JPanel buttons;
+
+  public HtmlDemo()
+  {
+    super();
+    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
+   * the bottom of the panel if they want to (a close button is added if this
+   * demo is being run as a standalone demo).
+   */
+  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");            
+          }
+      });
+    
+    buttons.add(parse);
+
+    add(center, BorderLayout.CENTER);
+    add(buttons, BorderLayout.SOUTH);
+  }
+ 
+  /**
+   * The executable method to display the editable table.
+   * 
+   * @param args
+   *          unused.
+   */
+  public static void main(String[] args)
+  {
+    SwingUtilities.invokeLater
+    (new Runnable()
+     {
+       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(640, 480));
+         frame.setVisible(true);
+       }
+     });
+  }
+
+  /**
+   * Returns a DemoFactory that creates a HtmlDemo.
+   *
+   * @return a DemoFactory that creates a HtmlDemo
+   */
+  public static DemoFactory createDemoFactory()
+  {
+    return new DemoFactory()
+    {
+      public JComponent createDemo()
+      {
+        return new HtmlDemo();
+      }
+    };
+  }
+}
+
diff --git a/gnu/javax/swing/text/html/parser/SmallHtmlAttributeSet.java b/gnu/javax/swing/text/html/parser/SmallHtmlAttributeSet.java
index 45e1dce7b..930a324f9 100644
--- a/gnu/javax/swing/text/html/parser/SmallHtmlAttributeSet.java
+++ b/gnu/javax/swing/text/html/parser/SmallHtmlAttributeSet.java
@@ -100,8 +100,6 @@ public class SmallHtmlAttributeSet
         key = en.nextElement();
         keys[i] = key;
         value = copyFrom.getAttribute(key);
-        if (value instanceof String)
-          value = ((String) value).toLowerCase();
         values[i] = value;
       }
   }
diff --git a/javax/swing/text/html/HTMLDocument.java b/javax/swing/text/html/HTMLDocument.java
index b7a706904..92f591ec8 100644
--- a/javax/swing/text/html/HTMLDocument.java
+++ b/javax/swing/text/html/HTMLDocument.java
@@ -39,13 +39,15 @@ exception statement from your version. */
 package javax.swing.text.html;
 
 import gnu.classpath.NotImplementedException;
-
 import gnu.javax.swing.text.html.CharacterAttributeTranslator;
+
 import java.io.IOException;
 import java.net.URL;
 import java.util.HashMap;
 import java.util.Stack;
 import java.util.Vector;
+
+import javax.swing.JEditorPane;
 import javax.swing.text.AbstractDocument;
 import javax.swing.text.AttributeSet;
 import javax.swing.text.BadLocationException;
@@ -59,9 +61,15 @@ import javax.swing.text.StyleConstants;
 import javax.swing.text.html.HTML.Tag;
 
 /**
- * TODO: Add more comments here 
+ * Represents the HTML document that is constructed by defining the text and
+ * other components (images, buttons, etc) in HTML language. This class can
+ * becomes the default document for {@link JEditorPane} after setting its
+ * content type to "text/html". HTML document also serves as an intermediate
+ * data structure when it is needed to parse HTML and then obtain the content of
+ * the certain types of tags. This class also has methods for modifying the HTML
+ * content.
  * 
- * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
  * @author Anthony Balkissoon (abalkiss@redhat.com)
  * @author Lillian Angel (langel@redhat.com)
  */
@@ -727,11 +735,17 @@ public class HTMLDocument extends DefaultStyledDocument
       } 
     }
     
+    /**
+     * Inserts the elements that are represented by ths single tag with 
+     * attributes (only). The closing tag, even if present, mut follow
+     * immediately after the starting tag without providing any additional
+     * information. Hence the {@link TagAction#end} method need not be
+     * overridden and still does nothing.
+     */
     public class SpecialAction extends TagAction
     {
       /**
-       * This method is called when a start tag is seen for one of the types
-       * of tags associated with this Action.
+       * The functionality is delegated to {@link HTMLReader#addSpecialElement}
        */
       public void start(HTML.Tag t, MutableAttributeSet a)
       {
@@ -1407,10 +1421,19 @@ public class HTMLDocument extends DefaultStyledDocument
      * @param a the attribute set specifying the special content
      */
     protected void addSpecialElement(HTML.Tag t, MutableAttributeSet a)
-      throws NotImplementedException
     {
-      // FIXME: Implement
-      print ("HTMLReader.addSpecialElement not implemented yet");
+      a.addAttribute(StyleConstants.NameAttribute, t);
+      
+      // Migrate from the rather htmlAttributeSet to the faster, lighter and 
+      // unchangeable alternative implementation.
+      AttributeSet copy = a.copyAttributes();
+      
+      // TODO: Figure out why we must always insert this single character
+      // (otherwise the element does not appear). Either fix or add explaining
+      // comment or at least report a normal bug.
+      ElementSpec spec = new ElementSpec(copy, ElementSpec.ContentType, 
+                                         new char[] {' '}, 0, 1 );
+      parseBuffer.add(spec);
     }
     
     void printBuffer()
author	Audrius Meskauskas <audriusa@Bioinformatics.org>	2006-06-09 12:51:22 +0000
committer	Audrius Meskauskas <audriusa@Bioinformatics.org>	2006-06-09 12:51:22 +0000
commit	5d6bfeb57b947a5e41afd1fda928371bc9586c71 (patch)
tree	0e78e814bed23aefbc034d970c4feb25912d643a
parent	cd6642bb405aeebdc0ec9ec65b79acd6b76734d8 (diff)
download	classpath-5d6bfeb57b947a5e41afd1fda928371bc9586c71.tar.gz