Package edu.cnu.mdi.view

Class JsonView

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JInternalFrame

edu.cnu.mdi.view.BaseView

edu.cnu.mdi.view.JsonView

All Implemented Interfaces:

IFeedbackProvider, IFileDropHandler, ComponentListener, FocusListener, MouseListener, ImageObserver, MenuContainer, Serializable, EventListener, Accessible, RootPaneContainer, WindowConstants

public class JsonView
extends BaseView

A container-less demo view that displays a JSON file as both colorized raw text and a collapsible tree, side by side in a split pane.

Usage

Open a file programmatically via loadFile(File), or simply drag a .json file onto the view — drop support is enabled in the constructor via BaseView.enableFileDrop(java.util.function.Predicate).

Layout

The view is container-less (no IContainer): it follows the same pattern as LogView and adds its content component — a JsonSplitPane — directly to the frame's BorderLayout.CENTER.

Threading

File I/O and JSON parsing are performed on a background thread inside JsonSplitPane.loadFile(File). The EDT is never blocked regardless of file size.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JInternalFrame

JInternalFrame.AccessibleJInternalFrame, JInternalFrame.JDesktopIcon

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

Field Summary

Fields inherited from class edu.cnu.mdi.view.BaseView

container, desktop, infoDialog, properties, scrollPane, statusWP, viewPopupMenu, VIEWPROPNAME, virtualItem

Fields inherited from class javax.swing.JInternalFrame

closable, CONTENT_PANE_PROPERTY, desktopIcon, FRAME_ICON_PROPERTY, frameIcon, GLASS_PANE_PROPERTY, iconable, IS_CLOSED_PROPERTY, IS_ICON_PROPERTY, IS_MAXIMUM_PROPERTY, IS_SELECTED_PROPERTY, isClosed, isIcon, isMaximum, isSelected, LAYERED_PANE_PROPERTY, maximizable, MENU_BAR_PROPERTY, resizable, ROOT_PANE_PROPERTY, rootPane, rootPaneCheckingEnabled, title, TITLE_PROPERTY

Fields inherited from class javax.swing.JComponent

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

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

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

Fields inherited from interface javax.swing.WindowConstants

DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, EXIT_ON_CLOSE, HIDE_ON_CLOSE

Constructor Summary

Constructors

Constructor	Description
JsonView()	Create a JsonView with default dimensions, initially hidden.
JsonView(int width, int height, boolean visible)	Create a JsonView with explicit dimensions and visibility.

Method Summary

Modifier and Type	Method	Description
void	filesDropped(List<File> files)	Handle a JSON file dropped onto this view.
AbstractViewInfo	getViewInfo()	Override to supply structured information for the info dialog.
void	loadFile(File file)	Load and display the given JSON file.

Methods inherited from class edu.cnu.mdi.view.BaseView

addWestPanel, applyFocusFix, center, checkBooleanProperty, componentHidden, componentMoved, componentResized, componentShown, enableFileDrop, enableFileDrop, focusGained, focusLost, getAnnotationLayer, getCenterComponent, getConfigurationProperties, getConnectionLayer, getDefaultLayer, getFeedbackStrings, getFileFilter, getIContainer, getImageComponent, getInfoButton, getInsets, getIntProperty, getName, getParentFrame, getProperties, getPropertyName, getScrollPane, getSpecialClip, getToolBar, getViewPopupMenu, getVirtualItem, handleMagnify, hoverClosed, hoverUpdate, initFeedback, initFeedback, isOnTop, isScrollable, isViewVisible, mouseClicked, mouseEntered, mouseExited, mousePressed, mouseReleased, offset, onFirstRealize, prepareForExit, refresh, resolveContainer, rightClicked, setAfterDraw, setBeforeDraw, setBooleanProperty, setFileFilter, setFromProperties, setIntProperty, setVirtualItem, viewInfo

Methods inherited from class javax.swing.JInternalFrame

addImpl, addInternalFrameListener, createRootPane, dispose, doDefaultCloseAction, fireInternalFrameEvent, getAccessibleContext, getContentPane, getDefaultCloseOperation, getDesktopIcon, getDesktopPane, getFocusCycleRootAncestor, getFocusOwner, getFrameIcon, getGlassPane, getInternalFrameListeners, getJMenuBar, getLastCursor, getLayer, getLayeredPane, getMenuBar, getMostRecentFocusOwner, getNormalBounds, getRootPane, getTitle, getUI, getUIClassID, getWarningString, hide, isClosable, isClosed, isFocusCycleRoot, isIcon, isIconifiable, isMaximizable, isMaximum, isResizable, isRootPaneCheckingEnabled, isSelected, moveToBack, moveToFront, pack, paintComponent, paramString, remove, removeInternalFrameListener, reshape, restoreSubcomponentFocus, setClosable, setClosed, setContentPane, setCursor, setDefaultCloseOperation, setDesktopIcon, setFocusCycleRoot, setFrameIcon, setGlassPane, setIcon, setIconifiable, setJMenuBar, setLayer, setLayer, setLayeredPane, setLayout, setMaximizable, setMaximum, setMenuBar, setNormalBounds, setResizable, setRootPane, setRootPaneCheckingEnabled, setSelected, setTitle, setUI, show, toBack, toFront, 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, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, 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, 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, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, 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, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, 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, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Details

JsonView

public JsonView()

Create a JsonView with default dimensions, initially hidden.

JsonView

public JsonView(int width,
 int height,
 boolean visible)

Create a JsonView with explicit dimensions and visibility.

Construction follows the LogView pattern: properties are passed to BaseView, then the content panel is added to BorderLayout.CENTER. File drop support is activated last so the view frame — the drop surface for container-less views — is already in the Swing hierarchy.

Parameters:

width - initial frame width in pixels

height - initial frame height in pixels

visible - true to make the view visible immediately

Method Details

loadFile

public void loadFile(File file)

Load and display the given JSON file.

Delegates to JsonSplitPane.loadFile(File), which performs I/O and parsing on a background thread and updates both panes on the EDT when done.

Parameters:

file - the JSON file to display; must not be null

filesDropped

public void filesDropped(List<File> files)

Handle a JSON file dropped onto this view.

Only the first file is used. The filter set in the constructor (.json extension) has already been applied by FileDropHandler, so no second check is needed here.

Specified by:

filesDropped in interface IFileDropHandler

Overrides:

filesDropped in class BaseView

Parameters:

files - the accepted dropped files; never null, never empty

getViewInfo

public AbstractViewInfo getViewInfo()

Override to supply structured information for the info dialog. The default returns null (no info available).

Returns a JsonViewInfo describing the view's purpose, supported file types, and keyboard shortcuts.

Overrides:

getViewInfo in class BaseView

Returns:

view info, or null