| javax.swing.JPanel
 com.sun.pdfview.ThumbPanel
| ThumbPanel | | public class ThumbPanel extends JPanel implements Runnable,Scrollable,ImageObserver(Code) | | 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.
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| Inner Class :class GotoLater implements Runnable | |
| Constructor Summary | |
| public | ThumbPanel(PDFFile file)
Creates a new ThumbPanel based on a PDFFile. |
| Method Summary | |
| public void | addPageChangeListener(PageChangeListener pl)
Adds a PageChangeListener to receive notification of page clicks. | | public Dimension | getPreferredScrollableViewportSize()
| | public int | getScrollableBlockIncrement(Rectangle visrect, int orientation, int direction)
| | public boolean | getScrollableTracksViewportHeight()
| | public boolean | getScrollableTracksViewportWidth()
| | public int | getScrollableUnitIncrement(Rectangle visrect, int orientation, int direction)
| | public void | handleClick(int x, int y)
Handles a mouse click in the panel. | | public boolean | imageUpdate(Image img, int infoflags, int x, int y, int width, int height)
Handles notification of any image updates. | | public void | pageShown(int pagenum)
Sets the currently viewed page, indicates it with a highlight
border, and makes sure the thumbnail is visible. | | public void | paint(Graphics g)
Updates the positions of the thumbnails, and draws them to the
screen. | | public void | removePageChangeListener(PageChangeListener pl)
Removes a PageChangeListener from the notification list. | | public void | run()
Renders each of the pages in the PDFFile into a thumbnail. | | public void | setDefaultWidth(int width)
Sets the default width of an un-processed thumbnail. | | public void | showPage(int pagenum)
Notifies the listeners that a page has been selected. | | public void | stop()
Stops the render thread. |
| anim | | Thread anim(Code) | | Thread that renders each thumbnail in turn
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| border | | int border(Code) | | Size of the border between images
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| defaultNotSet | | boolean defaultNotSet(Code) | | Whether the default width has been guesstimated for this PDFFile
yet.
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| defaultWidth | | int defaultWidth(Code) | | Guesstimate of the width of a thumbnail that hasn't been processed
yet.
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| images | | Image images(Code) | | Array of images, one per page in the file
|
| lineheight | | int lineheight(Code) | | Height of each line. Thumbnails will be scaled to this height
(minus the border).
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| needdrawn | | int needdrawn(Code) | | Which thumbnail needs to be drawn next, or -1 if the previous
needy thumbnail is being processed.
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| showing | | int showing(Code) | | Which thumbnail is selected, or -1 if no thumbnail selected.
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| xloc | | int xloc(Code) | | Array of the x locations of each of the thumbnails. Every 0 stored
in this array indicates the start of a new line of thumbnails.
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| ThumbPanel | | public ThumbPanel(PDFFile file)(Code) | | Creates a new ThumbPanel based on a PDFFile. The file may be null.
Automatically starts rendering thumbnails for that file.
|
| addPageChangeListener | | public void addPageChangeListener(PageChangeListener pl)(Code) | | Adds a PageChangeListener to receive notification of page clicks.
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| getPreferredScrollableViewportSize | | public Dimension getPreferredScrollableViewportSize()(Code) | | |
| getScrollableBlockIncrement | | public int getScrollableBlockIncrement(Rectangle visrect, int orientation, int direction)(Code) | | |
| getScrollableTracksViewportHeight | | public boolean getScrollableTracksViewportHeight()(Code) | | |
| getScrollableTracksViewportWidth | | public boolean getScrollableTracksViewportWidth()(Code) | | |
| getScrollableUnitIncrement | | public int getScrollableUnitIncrement(Rectangle visrect, int orientation, int direction)(Code) | | |
| handleClick | | public void handleClick(int x, int y)(Code) | | 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
Parameters:
y - the y coordinate of the mouse click |
| imageUpdate | | public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height)(Code) | | Handles notification of any image updates. Not used any more.
|
| pageShown | | public void pageShown(int pagenum)(Code) | | Sets the currently viewed page, indicates it with a highlight
border, and makes sure the thumbnail is visible.
|
| paint | | public void paint(Graphics g)(Code) | | Updates the positions of the thumbnails, and draws them to the
screen.
|
| removePageChangeListener | | public void removePageChangeListener(PageChangeListener pl)(Code) | | Removes a PageChangeListener from the notification list.
|
| run | | public void run()(Code) | | Renders each of the pages in the PDFFile into a thumbnail.
Preferentially works on the needdrawn thumbnail, otherwise, go in
order.
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| setDefaultWidth | | public void setDefaultWidth(int width)(Code) | | Sets the default width of an un-processed thumbnail.
Parameters:
width - the width of an unknown thumbnail, in pixels. |
| showPage | | public void showPage(int pagenum)(Code) | | 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.
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| stop | | public void stop()(Code) | | Stops the render thread. Be sure to call this before dropping
a ThumbPanel.
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