Documentation of 'org.jhotdraw.app.AbstractView' Java class
AbstractView
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org.jhotdraw.app

Class AbstractView

    • Nested Class Summary

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

        javax.swing.JComponent.AccessibleJComponent

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

        java.awt.Component.BaselineResizeBehavior

    • Constructor Summary

      Constructors 
      Constructor and Description
      AbstractView()
      Creates a new instance.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method and Description
      void activate()
      Activates the view.
      void addDisposable(Disposable disposable)
      Adds a disposable object, which will be disposed when the specified view is disposed.
      boolean canSaveTo(java.net.URI uri)
      Returns true, if this view can be saved to the specified URI.
      void deactivate()
      Deactivates the view.
      void dispose()
      Gets rid of all the resources of the view.
      void execute(java.lang.Runnable worker)
      Executes the specified runnable on the worker thread of the view.
      Application getApplication()
      Gets the application to which this view belongs.
      javax.swing.JComponent getComponent()
      Returns the visual component of the view.
      int getMultipleOpenId()
      Returns the multiple open id.
      java.lang.String getTitle()
      Gets the title of the view.
      java.net.URI getURI()
      Returns the uri which holds the document of the view.
      boolean hasUnsavedChanges()
      Returns true, if the view has unsaved changes.
      void init()
      Initializes the view.
      boolean isEmpty()
      Whether the view is empty.
      boolean isShowing()
      This is used by Application to keep track if a view is showing.
      void markChangesAsSaved()
      Marks all changes as saved.
      void removeDisposable(Disposable disposable)
      Removes a disposable object, which was previously added.
      void setApplication(Application newValue)
      Sets the application of the view.
      void setMultipleOpenId(int newValue)
      Sets the multiple open id.
      void setShowing(boolean newValue)
      This is used by Application to keep track if a view is showing.
      void setTitle(java.lang.String newValue)
      Sets the title of the view.
      void setURI(java.net.URI newValue)
      Sets the uri of the view.
      void start()
      Starts the view.
      void stop()
      Stops the view.

      • 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, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, 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, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintImmediately, paintImmediately, print, printAll, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, 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, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

      • Methods inherited from class java.awt.Container

        add, add, add, add, add, addContainerListener, 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, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate

      • Methods inherited from class java.awt.Component

        action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, contains, createImage, createImage, createVolatileImage, createVolatileImage, dispatchEvent, enable, enableInputMethods, 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, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, 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, postEvent, prepareImage, prepareImage, 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

        equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • AbstractView

        public AbstractView()
        Creates a new instance.

    • Method Detail

      • init

        public void init()
        Initializes the view. This method does nothing, subclasses don't neet to call super.
        Specified by:
        init in interface View

      • start

        public void start()
        Starts the view. This method does nothing, subclasses don't neet to call super.
        Specified by:
        start in interface View

      • activate

        public void activate()
        Activates the view. This method does nothing, subclasses don't neet to call super.
        Specified by:
        activate in interface View

      • deactivate

        public void deactivate()
        Deactivates the view. This method does nothing, subclasses don't neet to call super.
        Specified by:
        deactivate in interface View

      • stop

        public void stop()
        Stops the view. This method does nothing, subclasses don't neet to call super.
        Specified by:
        stop in interface View

      • dispose

        public void dispose()
        Gets rid of all the resources of the view. No other methods should be invoked on the view afterwards.
        Specified by:
        dispose in interface Disposable
        Specified by:
        dispose in interface View

      • canSaveTo

        public boolean canSaveTo(java.net.URI uri)
        Description copied from interface: View
        Returns true, if this view can be saved to the specified URI. A reason why the view can't be saved to a URI, is that the view is unable to write to a file-URI with the given filename extension without losing data.

        The SaveAction uses this method to decide, whether to display a save dialog before saving the URI.

        Specified by:
        canSaveTo in interface View
        Parameters:
        uri - An URI. If this parameter is null, a NullPointerException is thrown.

      • getURI

        public java.net.URI getURI()
        Description copied from interface: View
        Returns the uri which holds the document of the view.
        Specified by:
        getURI in interface View

      • setURI

        public void setURI(java.net.URI newValue)
        Description copied from interface: View
        Sets the uri of the view. This is a bound property.
        Specified by:
        setURI in interface View

      • setApplication

        public void setApplication(Application newValue)
        Description copied from interface: View
        Sets the application of the view. By convention, this is only invoked by Application.add() and Application.remove(). This is a bound property.
        Specified by:
        setApplication in interface View

      • getApplication

        public Application getApplication()
        Description copied from interface: View
        Gets the application to which this view belongs.
        Specified by:
        getApplication in interface View

      • getComponent

        public javax.swing.JComponent getComponent()
        Description copied from interface: View
        Returns the visual component of the view.
        Specified by:
        getComponent in interface View

      • isEmpty

        public boolean isEmpty()
        Description copied from interface: View
        Whether the view is empty. A view is considered empty if the application has implicit consent from the user to reuse or destroy the view at any time. For example, an application may open an empty view immediately after startup. If the user chooses to open a document, the document is opened in this view rather than in a new view.

        If this method returns true, OpenFileAction and similar actions will open a file in this view, instead of opening a new view.

        Specified by:
        isEmpty in interface View
        Returns:
        True if the view can be reused by open actions.

      • hasUnsavedChanges

        public boolean hasUnsavedChanges()
        Returns true, if the view has unsaved changes. This is a bound property.
        Specified by:
        hasUnsavedChanges in interface View

      • execute

        public void execute(java.lang.Runnable worker)
        Executes the specified runnable on the worker thread of the view. Execution is performed sequentially in the same sequence as the runnables have been passed to this method.
        Specified by:
        execute in interface View

      • setMultipleOpenId

        public void setMultipleOpenId(int newValue)
        Description copied from interface: View
        Sets the multiple open id. The id is used to help distinguish multiply opened views. The id should be displayed in the title of the view.
        Specified by:
        setMultipleOpenId in interface View

      • getMultipleOpenId

        public int getMultipleOpenId()
        Description copied from interface: View
        Returns the multiple open id. If a view is open only once this should be 1.
        Specified by:
        getMultipleOpenId in interface View

      • setShowing

        public void setShowing(boolean newValue)
        Description copied from interface: View
        This is used by Application to keep track if a view is showing.
        Specified by:
        setShowing in interface View

      • isShowing

        public boolean isShowing()
        Description copied from interface: View
        This is used by Application to keep track if a view is showing.
        Specified by:
        isShowing in interface View
        Overrides:
        isShowing in class java.awt.Component

      • markChangesAsSaved

        public void markChangesAsSaved()
        Description copied from interface: View
        Marks all changes as saved. This changes the state of hasUnsavedChanges to false.
        Specified by:
        markChangesAsSaved in interface View

      • setTitle

        public void setTitle(java.lang.String newValue)
        Description copied from interface: View
        Sets the title of the view.

        The title is generated by the application, based on the current URI of the view. The application ensures that the title uniquely identifies each open view.

        The application displays the title in the title bar of the view window and in all windows which are associated to the view.

        This is a bound property.

        Specified by:
        setTitle in interface View

      • getTitle

        public java.lang.String getTitle()
        Description copied from interface: View
        Gets the title of the view.
        Specified by:
        getTitle in interface View

      • addDisposable

        public void addDisposable(Disposable disposable)
        Adds a disposable object, which will be disposed when the specified view is disposed.
        Specified by:
        addDisposable in interface View
        Parameters:
        disposable -

      • removeDisposable

        public void removeDisposable(Disposable disposable)
        Removes a disposable object, which was previously added.
        Specified by:
        removeDisposable in interface View
        Parameters:
        disposable -
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