org.jhotdraw.samples.draw
Class DrawView

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JPanel
                  org.jhotdraw.app.AbstractView
                      org.jhotdraw.samples.draw.DrawView

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, View

public class DrawView
extends AbstractView

A view for JHotDraw drawings.

Version:

1.3.1 2008-03-19 Method read() tries out now all supported files format.
1.3 2007-11-25 Method clear() is now invoked from a worker thread.
1.2 2006-12-26 Reworked I/O support.
1.1 2006-06-10 Extended to support DefaultDrawApplicationModel.
1.0 2006-02-07 Created.

Author:

Werner Randelshofer

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.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields inherited from class org.jhotdraw.app.AbstractView

executor, file, openChooser, saveChooser

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.jhotdraw.app.View

APPLICATION_PROPERTY, ENABLED_PROPERTY, FILE_PROPERTY, HAS_UNSAVED_CHANGES_PROPERTY, MULTIPLE_OPEN_ID_PROPERTY, SHOWING_PROPERTY, TITLE_PROPERTY

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

DrawView()
Creates a new view.

Method Summary

boolean	canSaveTo(java.io.File file) Returns true, if this view can be saved to the specified file.
void	clear() Clears the view.
protected Drawing	createDrawing() Creates a new Drawing for this view.
protected javax.swing.JFileChooser	createOpenChooser()
java.awt.print.Pageable	createPageable() Creates a Pageable object for printing the view.
protected javax.swing.JFileChooser	createSaveChooser()
DrawingEditor	getDrawingEditor() Gets the drawing editor of the view.
DrawingEditor	getEditor()
void	init() Initializes the view.
void	read(java.io.File f) Reads the view from the specified file.
void	setDrawingEditor(DrawingEditor newValue) Sets a drawing editor for the view.
void	setEditor(DrawingEditor newValue)
protected void	setHasUnsavedChanges(boolean newValue)
void	write(java.io.File f) Writes the view to the specified file.

Methods inherited from class org.jhotdraw.app.AbstractView

activate, deactivate, dispose, execute, getAction, getApplication, getComponent, getFile, getMultipleOpenId, getOpenChooser, getSaveChooser, getTitle, hasUnsavedChanges, isShowing, markChangesAsSaved, putAction, setApplication, setFile, setMultipleOpenId, setShowing, setTitle, start, stop

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, 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, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, 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, transferFocusBackward, 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, 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, transferFocusUpCycle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.jhotdraw.app.View

addPropertyChangeListener, isEnabled, removePropertyChangeListener, setEnabled

Constructor Detail

DrawView

public DrawView()

Creates a new view.

Method Detail

init

public void init()

Initializes the view.

Specified by:

init in interface View

Overrides:

init in class AbstractView

createDrawing

protected Drawing createDrawing()

Creates a new Drawing for this view.

getEditor

public DrawingEditor getEditor()

setEditor

public void setEditor(DrawingEditor newValue)

createPageable

public java.awt.print.Pageable createPageable()

Creates a Pageable object for printing the view.

setHasUnsavedChanges

protected void setHasUnsavedChanges(boolean newValue)

Overrides:

setHasUnsavedChanges in class AbstractView

write

public void write(java.io.File f)
           throws java.io.IOException

Writes the view to the specified file.

Throws:

java.io.IOException

read

public void read(java.io.File f)
          throws java.io.IOException

Reads the view from the specified file.

Throws:

java.io.IOException

setDrawingEditor

public void setDrawingEditor(DrawingEditor newValue)

Sets a drawing editor for the view.

getDrawingEditor

public DrawingEditor getDrawingEditor()

Gets the drawing editor of the view.

clear

public void clear()

Clears the view.

createOpenChooser

protected javax.swing.JFileChooser createOpenChooser()

Overrides:

createOpenChooser in class AbstractView

createSaveChooser

protected javax.swing.JFileChooser createSaveChooser()

Overrides:

createSaveChooser in class AbstractView

canSaveTo

public boolean canSaveTo(java.io.File file)

Description copied from interface: View

Returns true, if this view can be saved to the specified file. A reason why the view can't be saved to a file, is that the view is unable to write to a file with the given filename extension without losing data.

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

Specified by:

canSaveTo in interface View

Overrides:

canSaveTo in class AbstractView

Parameters:

file - A file. If this parameter is null, a NullPointerException is thrown.