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## org.flexdock.view
Class Viewport

    java.lang.Object
      java.awt.Component
          java.awt.Container
              javax.swing.JComponent
                  javax.swing.JPanel
                      org.flexdock.docking.defaults.DefaultDockingPort
                          org.flexdock.view.Viewport

All Implemented Interfaces:
  ImageObserver, MenuContainer, Serializable, EventListener, Accessible, DockingConstants, DockingPort, DockingListener, DockingMonitor

    public class Viewport

extends DefaultDockingPort
implements DockingConstants

Author:
  Christopher Butler
See Also:
  Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.flexdock.docking.defaults.DefaultDockingPort
`DefaultDockingPort.PortLayout`

Nested classes/interfaces inherited from class javax.swing.JPanel
`JPanel.AccessibleJPanel`

Nested classes/interfaces inherited from class javax.swing.JComponent
`JComponent.AccessibleJComponent`

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

Nested classes/interfaces inherited from class java.awt.Component
`Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy`

Nested classes/interfaces inherited from interface org.flexdock.docking.event.DockingListener
`DockingListener.Stub`

Field Summary
`protected HashSet` | `blockedRegions`

Fields inherited from class org.flexdock.docking.defaults.DefaultDockingPort
`dockingListeners`

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 org.flexdock.docking.DockingConstants
`ACTIVE_WINDOW, BOTTOM, CENTER, CENTER_REGION, CLOSE_ACTION, DEFAULT_PERSISTENCE_KEY, DOCKING_ID, EAST_REGION, HEAVYWEIGHT_DOCKABLES, HORIZONTAL, LEFT, MOUSE_PRESSED, NORTH_REGION, PERMANENT_FOCUS_OWNER, PIN_ACTION, REGION, RIGHT, SOUTH_REGION, TOP, UNINITIALIZED, UNINITIALIZED_RATIO, UNKNOWN_REGION, UNSPECIFIED_SIBLING_PREF, VERTICAL, WEST_REGION`

Fields inherited from interface org.flexdock.docking.DockingPort
`INITIAL_TAB_POSITION`

Fields inherited from interface java.awt.image.ImageObserver
`ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

Constructor Summary
`Viewport()`
`Viewport(String portId)`

Method Summary
`protected JTabbedPane` | `createTabbedPane()` If this method returns `null`, implementations may throw NullPointerExceptions.
`boolean` | `dock(Dockable dockable)`
`Set` | `getViewset()`
`Set` | `getViewset(int depth)`
`boolean` | `isDockingAllowed(Component comp, String region)` Returns `true` if docking is allowed for the specified `Component` within the supplied `region`, `false` otherwise.
`protected String` | `paramString()`
`void` | `setRegionBlocked(String region, boolean isBlocked)`

Methods inherited from class org.flexdock.docking.defaults.DefaultDockingPort
`add, add, add, add, add, addDockingListener, clear, createBorderManager, createLayout, dock, dock, dockingCanceled, dockingComplete, dragStarted, dropStarted, exportLayout, getBorderManager, getCenterDockable, getComponent, getDockable, getDockableAt, getDockables, getDockableSet, getDockedComponent, getDockingListeners, getDockingProperties, getDockingStrategy, getInitTabPlacement, getPersistentId, getRegion, getRegionChecker, importLayout, installMaximizedDockable, isParentDockingPort, isRoot, isSingleTabAllowed, isTabsAsDragSource, isValidDockableChild, isValidDockingRegion, paint, releaseForMaximization, remove, removeAll, removeDockingListener, returnFromMaximization, setBorderManager, setDragInProgress, setPersistentId, setRoot, setSingleTabAllowed, setTabsAsDragSource, undock, undockingComplete, undockingStarted, uninstallMaximizedDockable, updateTab`

Methods inherited from class javax.swing.JPanel
`getAccessibleContext, getUI, getUIClassID, 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
`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, 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, imageUpdate, 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`

Methods inherited from interface org.flexdock.docking.DockingPort
`getClientProperty, putClientProperty`

Field Detail

### blockedRegions

    protected HashSet blockedRegions

Constructor Detail

### Viewport

    public Viewport()

### Viewport

    public Viewport(String portId)

Method Detail

### setRegionBlocked

    public void setRegionBlocked(String region,
                                 boolean isBlocked)

### isDockingAllowed

    public boolean isDockingAllowed(Component comp,
                                    String region)

  Description copied from class: `DefaultDockingPort`
  Returns `true` if docking is allowed for the specified `Component` within the supplied `region`, `false` otherwise. It is important to note that success of a docking operation relies on many factors and a return value of `true` from this method does not necessarily guarantee that a call to `dock()` will succeed. This method merely indicates that the current `DockingPort` does not have any outstanding reason to block a docking operation with respect to the specified `Component` and `region`.

  If `comp` is `null` or `region` is invalid according to `DockingManager.isValidDockingRegion(String region)`, then this method returns `false`.

  If this `DockingPort` is not already the parent `DockingPort` for the specified `Component`, then this method returns `true`.

  If this `DockingPort` is already the parent `DockingPort` for the specified `Component`, then a check is performed to see if there is a tabbed layout. Tabbed layouts may contain multiple `Dockables`, and thus the tab ordering may be rearranged, or shifted into a split layout. If `comp` is the only docked `Component` within this `DockingPort`, then this method returns `false` since the layout cannot be rearranged. Otherwise, this method returns `true`.

  Specified by:
    `isDockingAllowed` in interface `DockingPort`
  Overrides:
    `isDockingAllowed` in class `DefaultDockingPort`
  Parameters:
    `comp` - the `Component` whose docking availability is to be checked
    `region` - the region to be checked for docking availability for the specified `Component`.
  Returns:
    `true` if docking is allowed for the specified `Component` within the supplied `region`, `false` otherwise.
  See Also:
    `DockingPort.isDockingAllowed(Component, String)`, `DockingManager.isValidDockingRegion(String)`, `DefaultDockingPort.isParentDockingPort(Component)`

### dock

    public boolean dock(Dockable dockable)

### createTabbedPane

    protected JTabbedPane createTabbedPane()

  Description copied from class: `DefaultDockingPort`
  If this method returns `null`, implementations may throw NullPointerExceptions. Do not expect NPE checking.

  Overrides:
    `createTabbedPane` in class `DefaultDockingPort`
  Returns:
    a valid JTabbedPane.

### getViewset

    public Set getViewset()

### getViewset

    public Set getViewset(int depth)

### paramString

    protected String paramString()

  Overrides:
    `paramString` in class `JPanel`

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