Class DetectingViewer

  • All Implemented Interfaces:
    java.awt.event.ActionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.RootPaneContainer, javax.swing.WindowConstants

    public class DetectingViewer
    extends javax.swing.JFrame
    implements java.awt.event.ActionListener
    This simple application demonstrates how to use the CharsetDetector API. It opens a file or web page, detects the encoding, and then displays it using that encoding.
    See Also:
    Serialized Form
    • Nested Class Summary

      • Nested classes/interfaces inherited from class javax.swing.JFrame

        javax.swing.JFrame.AccessibleJFrame
      • Nested classes/interfaces inherited from class java.awt.Frame

        java.awt.Frame.AccessibleAWTFrame
      • Nested classes/interfaces inherited from class java.awt.Window

        java.awt.Window.AccessibleAWTWindow, java.awt.Window.Type
      • Nested classes/interfaces inherited from class java.awt.Container

        java.awt.Container.AccessibleAWTContainer
      • Nested classes/interfaces inherited from class java.awt.Component

        java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static int BUFFER_SIZE  
      private javax.swing.JFileChooser fileChooser  
      private byte[] scriptTag  
      private static long serialVersionUID
      For serialization
      private byte[] styleTag  
      private javax.swing.JTextPane text  
      • Fields inherited from class javax.swing.JFrame

        accessibleContext, rootPane, rootPaneCheckingEnabled
      • Fields inherited from class java.awt.Frame

        CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR
      • Fields inherited from class java.awt.Component

        BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
      • Fields inherited from interface java.awt.image.ImageObserver

        ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
      • Fields inherited from interface javax.swing.WindowConstants

        DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, EXIT_ON_CLOSE, HIDE_ON_CLOSE
    • Constructor Summary

      Constructors 
      Constructor Description
      DetectingViewer()  
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void actionPerformed​(java.awt.event.ActionEvent event)  
      private boolean closedTag​(byte[] buffer, int offset, int length, byte[] tag)  
      private CharsetMatch[] detect​(byte[] bytes)  
      private CharsetMatch[] detect​(java.io.BufferedInputStream inputStream)  
      private void doNew()  
      private void doOpenFile()  
      private void doOpenURL()  
      private void doQuit()  
      private java.lang.String encodingName​(CharsetMatch match)  
      private void errorDialog​(java.lang.String title, java.lang.String msg)  
      private byte[] filter​(java.io.InputStream in)  
      static void main​(java.lang.String[] args)  
      private javax.swing.JMenuBar makeMenus()  
      private java.io.BufferedInputStream openFile​(java.io.File file)  
      private boolean openTag​(byte[] buffer, int offset, int length, byte[] tag)  
      private java.io.BufferedInputStream openURL​(java.lang.String url)  
      private void setMatchMenu​(CharsetMatch[] matches)  
      private void show​(java.io.InputStream inputStream, CharsetMatch[] matches, java.lang.String title)  
      • Methods inherited from class javax.swing.JFrame

        addImpl, createRootPane, frameInit, getAccessibleContext, getContentPane, getDefaultCloseOperation, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isDefaultLookAndFeelDecorated, isRootPaneCheckingEnabled, paramString, processWindowEvent, remove, repaint, setContentPane, setDefaultCloseOperation, setDefaultLookAndFeelDecorated, setGlassPane, setIconImage, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, update
      • Methods inherited from class java.awt.Frame

        addNotify, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setBackground, setCursor, setExtendedState, setMaximizedBounds, setMenuBar, setOpacity, setResizable, setShape, setState, setTitle, setUndecorated
      • Methods inherited from class java.awt.Window

        addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBackground, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getIconImages, getInputContext, getListeners, getLocale, getModalExclusionType, getMostRecentFocusOwner, getOpacity, getOwnedWindows, getOwner, getOwnerlessWindows, getShape, getToolkit, getType, getWarningString, getWindowFocusListeners, getWindowListeners, getWindows, getWindowStateListeners, hide, isActive, isAlwaysOnTop, isAlwaysOnTopSupported, isAutoRequestFocus, isFocusableWindow, isFocusCycleRoot, isFocused, isLocationByPlatform, isOpaque, isShowing, isValidateRoot, pack, paint, postEvent, processEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, reshape, setAlwaysOnTop, setAutoRequestFocus, setBounds, setBounds, setCursor, setFocusableWindowState, setFocusCycleRoot, setIconImages, setLocation, setLocation, setLocationByPlatform, setLocationRelativeTo, setMinimumSize, setModalExclusionType, setSize, setSize, setType, setVisible, show, toBack, toFront
      • Methods inherited from class java.awt.Container

        add, add, add, add, add, addContainerListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusDownCycle, validate, validateTree
      • Methods inherited from class java.awt.Component

        action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, resize, resize, revalidate, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setMaximumSize, setMixingCutoutShape, setName, setPreferredSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
      • Methods inherited from interface java.awt.MenuContainer

        getFont, postEvent
    • Field Detail

      • serialVersionUID

        private static final long serialVersionUID
        For serialization
        See Also:
        Constant Field Values
      • text

        private javax.swing.JTextPane text
      • fileChooser

        private javax.swing.JFileChooser fileChooser
      • scriptTag

        private byte[] scriptTag
      • styleTag

        private byte[] styleTag
      • BUFFER_SIZE

        private static int BUFFER_SIZE
    • Constructor Detail

      • DetectingViewer

        public DetectingViewer()
        Throws:
        java.awt.HeadlessException
    • Method Detail

      • actionPerformed

        public void actionPerformed​(java.awt.event.ActionEvent event)
        Specified by:
        actionPerformed in interface java.awt.event.ActionListener
      • main

        public static void main​(java.lang.String[] args)
      • errorDialog

        private void errorDialog​(java.lang.String title,
                                 java.lang.String msg)
      • openFile

        private java.io.BufferedInputStream openFile​(java.io.File file)
      • openURL

        private java.io.BufferedInputStream openURL​(java.lang.String url)
      • encodingName

        private java.lang.String encodingName​(CharsetMatch match)
      • setMatchMenu

        private void setMatchMenu​(CharsetMatch[] matches)
      • openTag

        private boolean openTag​(byte[] buffer,
                                int offset,
                                int length,
                                byte[] tag)
      • closedTag

        private boolean closedTag​(byte[] buffer,
                                  int offset,
                                  int length,
                                  byte[] tag)
      • filter

        private byte[] filter​(java.io.InputStream in)
      • detect

        private CharsetMatch[] detect​(java.io.BufferedInputStream inputStream)
      • show

        private void show​(java.io.InputStream inputStream,
                          CharsetMatch[] matches,
                          java.lang.String title)
      • doNew

        private void doNew()
      • doOpenFile

        private void doOpenFile()
      • doOpenURL

        private void doOpenURL()
      • doQuit

        private void doQuit()
      • makeMenus

        private javax.swing.JMenuBar makeMenus()