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## com.lowagie.text.pdf.internal
Class PdfViewerPreferencesImp

    java.lang.Object
      com.lowagie.text.pdf.internal.PdfViewerPreferencesImp

All Implemented Interfaces:
  PdfViewerPreferences

    public class PdfViewerPreferencesImp

extends Object
implements PdfViewerPreferences

Stores the information concerning viewer preferences, and contains the business logic that allows you to set viewer preferences.

Field Summary
`static PdfName[]` | `DIRECTION_PREFERENCES` A series of viewer preferences.
`static PdfName[]` | `DUPLEX_PREFERENCES` A series of viewer preferences.
`static PdfName[]` | `NONFULLSCREENPAGEMODE_PREFERENCES` A series of viewer preferences.
`static PdfName[]` | `PAGE_BOUNDARIES` A series of viewer preferences.
`private int` | `pageLayoutAndMode` This value will hold the viewer preferences for the page layout and page mode.
`static PdfName[]` | `PRINTSCALING_PREFERENCES` A series of viewer preferences
`static PdfName[]` | `VIEWER_PREFERENCES`
`private PdfDictionary` | `viewerPreferences` This dictionary holds the viewer preferences (other than page layout and page mode).
`private static int` | `viewerPreferencesMask` The mask to decide if a ViewerPreferences dictionary is needed

Constructor Summary
`PdfViewerPreferencesImp()`

Method Summary
`void` | `addToCatalog(PdfDictionary catalog)` Adds the viewer preferences defined in the preferences parameter to a PdfDictionary (more specifically the root or catalog of a PDF file).
`void` | `addViewerPreference(PdfName key, PdfObject value)` Sets the viewer preferences for printing.
`private int` | `getIndex(PdfName key)` Given a key for a viewer preference (a PdfName object), this method returns the index in the VIEWER_PREFERENCES array.
`int` | `getPageLayoutAndMode()` Returns the page layout and page mode value.
`PdfDictionary` | `getViewerPreferences()` Returns the viewer preferences.
`static PdfViewerPreferencesImp` | `getViewerPreferences(PdfDictionary catalog)`
`private boolean` | `isPossibleValue(PdfName value, PdfName[] accepted)` Checks if some value is valid for a certain key.
`void` | `setViewerPreferences(int preferences)` Sets the viewer preferences as the sum of several constants.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### VIEWER_PREFERENCES

    public static final PdfName[] VIEWER_PREFERENCES

### NONFULLSCREENPAGEMODE_PREFERENCES

    public static final PdfName[] NONFULLSCREENPAGEMODE_PREFERENCES

  A series of viewer preferences.

### DIRECTION_PREFERENCES

    public static final PdfName[] DIRECTION_PREFERENCES

  A series of viewer preferences.

### PAGE_BOUNDARIES

    public static final PdfName[] PAGE_BOUNDARIES

  A series of viewer preferences.

### PRINTSCALING_PREFERENCES

    public static final PdfName[] PRINTSCALING_PREFERENCES

  A series of viewer preferences

### DUPLEX_PREFERENCES

    public static final PdfName[] DUPLEX_PREFERENCES

  A series of viewer preferences.

### pageLayoutAndMode

    private int pageLayoutAndMode

  This value will hold the viewer preferences for the page layout and page mode.

### viewerPreferences

    private PdfDictionary viewerPreferences

  This dictionary holds the viewer preferences (other than page layout and page mode).

### viewerPreferencesMask

    private static final int viewerPreferencesMask

  The mask to decide if a ViewerPreferences dictionary is needed

  See Also:
    Constant Field Values

Constructor Detail

### PdfViewerPreferencesImp

    public PdfViewerPreferencesImp()

Method Detail

### getPageLayoutAndMode

    public int getPageLayoutAndMode()

  Returns the page layout and page mode value.

### getViewerPreferences

    public PdfDictionary getViewerPreferences()

  Returns the viewer preferences.

### setViewerPreferences

    public void setViewerPreferences(int preferences)

  Sets the viewer preferences as the sum of several constants.

  Specified by:
    `setViewerPreferences` in interface `PdfViewerPreferences`
  Parameters:
    `preferences` - the viewer preferences
  See Also:
    `PdfViewerPreferences.setViewerPreferences(int)`

### getIndex

    private int getIndex(PdfName key)

  Given a key for a viewer preference (a PdfName object), this method returns the index in the VIEWER_PREFERENCES array.

  Parameters:
    `key` - a PdfName referring to a viewer preference
  Returns:
    an index in the VIEWER_PREFERENCES array

### isPossibleValue

    private boolean isPossibleValue(PdfName value,
                                    PdfName[] accepted)

  Checks if some value is valid for a certain key.

### addViewerPreference

    public void addViewerPreference(PdfName key,
                                    PdfObject value)

  Sets the viewer preferences for printing.

  Specified by:
    `addViewerPreference` in interface `PdfViewerPreferences`
  Parameters:
    `key` - the name of the viewer preference
    `value` - the value of the viewer preference
  See Also:
    `PdfViewerPreferences.setViewerPreferences(int)`

### addToCatalog

    public void addToCatalog(PdfDictionary catalog)

  Adds the viewer preferences defined in the preferences parameter to a PdfDictionary (more specifically the root or catalog of a PDF file).

  Parameters:
    `catalog` -

### getViewerPreferences

    public static PdfViewerPreferencesImp getViewerPreferences(PdfDictionary catalog)

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