com.sun.pdfview
Class ThumbPanel

java.lang.Object
  extended by java.awt.Component
      extended by java.awt.Container
          extended by javax.swing.JComponent
              extended by javax.swing.JPanel
                  extended by com.sun.pdfview.ThumbPanel
All Implemented Interfaces:
java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.lang.Runnable, javax.accessibility.Accessible, javax.swing.Scrollable

public class ThumbPanel
extends javax.swing.JPanel
implements java.lang.Runnable, javax.swing.Scrollable, java.awt.image.ImageObserver

A panel of thumbnails, one for each page of a PDFFile. You can add a PageChangeListener to be informed of when the user clicks one of the pages.

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class javax.swing.JPanel
javax.swing.JPanel.AccessibleJPanel
 
Nested classes/interfaces inherited from class javax.swing.JComponent
javax.swing.JComponent.AccessibleJComponent
 
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 inherited from class javax.swing.JComponent
accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
 
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
 
Constructor Summary
ThumbPanel(PDFFile file)
          Creates a new ThumbPanel based on a PDFFile.
 
Method Summary
 void addPageChangeListener(PageChangeListener pl)
          Adds a PageChangeListener to receive notification of page clicks.
 java.awt.Dimension getPreferredScrollableViewportSize()
           
 int getScrollableBlockIncrement(java.awt.Rectangle visrect, int orientation, int direction)
           
 boolean getScrollableTracksViewportHeight()
           
 boolean getScrollableTracksViewportWidth()
           
 int getScrollableUnitIncrement(java.awt.Rectangle visrect, int orientation, int direction)
           
 void handleClick(int x, int y)
          Handles a mouse click in the panel.
 boolean imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)
          Handles notification of any image updates.
 void pageShown(int pagenum)
          Sets the currently viewed page, indicates it with a highlight border, and makes sure the thumbnail is visible.
 void paint(java.awt.Graphics g)
          Updates the positions of the thumbnails, and draws them to the screen.
 void removePageChangeListener(PageChangeListener pl)
          Removes a PageChangeListener from the notification list.
 void run()
          Renders each of the pages in the PDFFile into a thumbnail.
 void setDefaultWidth(int width)
          Sets the default width of an un-processed thumbnail.
 void showPage(int pagenum)
          Notifies the listeners that a page has been selected.
 void stop()
          Stops the render thread.
 
Methods inherited from class javax.swing.JPanel
getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI
 
Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
 
Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, 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, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ThumbPanel

public ThumbPanel(PDFFile file)
Creates a new ThumbPanel based on a PDFFile. The file may be null. Automatically starts rendering thumbnails for that file.

Method Detail

run

public void run()
Renders each of the pages in the PDFFile into a thumbnail. Preferentially works on the needdrawn thumbnail, otherwise, go in order.

Specified by:
run in interface java.lang.Runnable

addPageChangeListener

public void addPageChangeListener(PageChangeListener pl)
Adds a PageChangeListener to receive notification of page clicks.


removePageChangeListener

public void removePageChangeListener(PageChangeListener pl)
Removes a PageChangeListener from the notification list.


stop

public void stop()
Stops the render thread. Be sure to call this before dropping a ThumbPanel.


setDefaultWidth

public void setDefaultWidth(int width)
Sets the default width of an un-processed thumbnail.

Parameters:
width - the width of an unknown thumbnail, in pixels.

handleClick

public void handleClick(int x,
                        int y)
Handles a mouse click in the panel. Figures out which page was clicked, and calls showPage.

Parameters:
x - the x coordinate of the mouse click
y - the y coordinate of the mouse click

pageShown

public void pageShown(int pagenum)
Sets the currently viewed page, indicates it with a highlight border, and makes sure the thumbnail is visible.


showPage

public void showPage(int pagenum)
Notifies the listeners that a page has been selected. Performs the notification in the AWT thread. Also highlights the selected page. Does this first so that feedback is immediate.


paint

public void paint(java.awt.Graphics g)
Updates the positions of the thumbnails, and draws them to the screen.

Overrides:
paint in class javax.swing.JComponent

imageUpdate

public boolean imageUpdate(java.awt.Image img,
                           int infoflags,
                           int x,
                           int y,
                           int width,
                           int height)
Handles notification of any image updates. Not used any more.

Specified by:
imageUpdate in interface java.awt.image.ImageObserver
Overrides:
imageUpdate in class java.awt.Component

getPreferredScrollableViewportSize

public java.awt.Dimension getPreferredScrollableViewportSize()
Specified by:
getPreferredScrollableViewportSize in interface javax.swing.Scrollable

getScrollableBlockIncrement

public int getScrollableBlockIncrement(java.awt.Rectangle visrect,
                                       int orientation,
                                       int direction)
Specified by:
getScrollableBlockIncrement in interface javax.swing.Scrollable

getScrollableTracksViewportHeight

public boolean getScrollableTracksViewportHeight()
Specified by:
getScrollableTracksViewportHeight in interface javax.swing.Scrollable

getScrollableTracksViewportWidth

public boolean getScrollableTracksViewportWidth()
Specified by:
getScrollableTracksViewportWidth in interface javax.swing.Scrollable

getScrollableUnitIncrement

public int getScrollableUnitIncrement(java.awt.Rectangle visrect,
                                      int orientation,
                                      int direction)
Specified by:
getScrollableUnitIncrement in interface javax.swing.Scrollable