Package edu.hws.jcm.functions

Class TableFunctionInput

  • All Implemented Interfaces:
    java.awt.event.ActionListener, java.awt.event.ItemListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible
    public class TableFunctionInput
extends java.awt.Panel
implements java.awt.event.ItemListener, java.awt.event.ActionListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener
    A TableInputFunction is a Panel that can be used to define a TableFunction or to edit an existing TableFunction. To fetch the function currently displayed in the panel, call copyOfCurrentFunction(). To edit a function, call startEdit() to install the function. Then call cancelEdit() or finishEdit() to finish the editing. The panel displays both the graph of the function and a list of points that define the function. The user can drag the points on the graph up and down to change the y-values. Points can be added or modified by typing in their x- and y-coordinates. A point can be deleted by clicking it in the list of points and then clicking on the button labeled "Delete Point".
    See Also:
    Serialized Form

    • Nested Class Summary

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

        java.awt.Panel.AccessibleAWTPanel

      • 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.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

    • Field Summary

      • 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

    • Constructor Summary

      Constructors 
      Constructor Description
      TableFunctionInput()
      Create a TableFunctionInput panel.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void actionPerformed​(java.awt.event.ActionEvent evt)
      React when user clicks one of the buttons or presses return in one of the input boxes.
      void cancelEdit()
      Discards the internal pointer to the edit function (specified by startEdit()), if any.
      TableFunction copyOfCurrentFunction()
      Create a new TableFunction containing the data that is currently in the TableFunctionInput panel, and return a pointer to that new function.
      TableFunction finishEdit()
      If an edit function has been specified (by startEdit()), this function copies the data form the TableFunctionInput into that function, and returns a pointer to that function.
      java.awt.Insets getInsets()
      Leave a 3-pixel gap around the edges of the panel.
      Controller getOnChange()
      Get the Controller that is notified when the user edits the data in this panel.
      void itemStateChanged​(java.awt.event.ItemEvent evt)
      React when user clicks on a point in the list of points or clicks one of the radio buttons for specifying the style of the function.
      void mouseClicked​(java.awt.event.MouseEvent evt)
      Empty method, required by the MouseListener interface.
      void mouseDragged​(java.awt.event.MouseEvent evt)
      Method required by the MouseListener interface.
      void mouseEntered​(java.awt.event.MouseEvent evt)
      Empty method, required by the MouseMotionListener interface.
      void mouseExited​(java.awt.event.MouseEvent evt)
      Empty method, required by the MouseMotionListener interface.
      void mouseMoved​(java.awt.event.MouseEvent evt)
      Empty method, required by the MouseMotionListener interface.
      void mousePressed​(java.awt.event.MouseEvent evt)
      Method required by the MouseListener interface.
      void mouseReleased​(java.awt.event.MouseEvent evt)
      Method required by the MouseListener interface.
      void revertEditFunction()
      If a function has been specified using startEdit(), and neither finishEdit() nor cancelEdit have been called, then this method will discard the current data in and replace it with data from the edit function.
      void setOnChange​(Controller c)
      Specify a controller whose compute() method will be called whenever the user edits the data in this TableFunctionInput panel.
      void startEdit​(TableFunction f)
      Install a function to be edited.

      • Methods inherited from class java.awt.Panel

        addNotify, getAccessibleContext

      • Methods inherited from class java.awt.Container

        add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, isValidateRoot, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusDownCycle, update, 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, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setMixingCutoutShape, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • TableFunctionInput

        public TableFunctionInput()
        Create a TableFunctionInput panel. Initially, the function in the panel has no points and so is undefined everywhere. The panel needs to be fairly large!

    • Method Detail

      • startEdit

        public void startEdit​(TableFunction f)
        Install a function to be edited. The data from the function is copied into the panel, and a pointer to the function is retained. Note that the function itself is not changed by any editing that the user does. To commit the changes made by the user to the actual function, you must call finishEdit(). If f is null, the effect is to start with a new, empty function.

      • revertEditFunction

        public void revertEditFunction()
        If a function has been specified using startEdit(), and neither finishEdit() nor cancelEdit have been called, then this method will discard the current data in and replace it with data from the edit function. If there is no edit function, then the data is simply discarded. (That is, the data reverts to an empty point list.)

      • finishEdit

        public TableFunction finishEdit()
        If an edit function has been specified (by startEdit()), this function copies the data form the TableFunctionInput into that function, and returns a pointer to that function. This ends the edit session, and the internally stored pointer to the edit function is discarded. If no edit function has been specified then a new TableFunction is created with the data from the panel, and a pointer to the new function is returned. This does not clear the data in the TableFunctionInput panel.

      • cancelEdit

        public void cancelEdit()
        Discards the internal pointer to the edit function (specified by startEdit()), if any. This does not clear the data in the TableFunctionInput panel.

      • copyOfCurrentFunction

        public TableFunction copyOfCurrentFunction()
        Create a new TableFunction containing the data that is currently in the TableFunctionInput panel, and return a pointer to that new function.

      • setOnChange

        public void setOnChange​(Controller c)
        Specify a controller whose compute() method will be called whenever the user edits the data in this TableFunctionInput panel. (Note that when the user edits the function by dragging a point, the Controller is only called once at the end of the drag.) If the specified Controller is null, then no notification takes place.

      • getOnChange

        public Controller getOnChange()
        Get the Controller that is notified when the user edits the data in this panel. The return value can be null (the default), indicating that no notification takes place.

      • getInsets

        public java.awt.Insets getInsets()
        Leave a 3-pixel gap around the edges of the panel. Not meant to be called directly.
        Overrides:
        getInsets in class java.awt.Container

      • actionPerformed

        public void actionPerformed​(java.awt.event.ActionEvent evt)
        React when user clicks one of the buttons or presses return in one of the input boxes. Not meant to be called directly.
        Specified by:
        actionPerformed in interface java.awt.event.ActionListener

      • itemStateChanged

        public void itemStateChanged​(java.awt.event.ItemEvent evt)
        React when user clicks on a point in the list of points or clicks one of the radio buttons for specifying the style of the function. Not meant to be called directly.
        Specified by:
        itemStateChanged in interface java.awt.event.ItemListener

      • mousePressed

        public void mousePressed​(java.awt.event.MouseEvent evt)
        Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.
        Specified by:
        mousePressed in interface java.awt.event.MouseListener

      • mouseReleased

        public void mouseReleased​(java.awt.event.MouseEvent evt)
        Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.
        Specified by:
        mouseReleased in interface java.awt.event.MouseListener

      • mouseDragged

        public void mouseDragged​(java.awt.event.MouseEvent evt)
        Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.
        Specified by:
        mouseDragged in interface java.awt.event.MouseMotionListener

      • mouseClicked

        public void mouseClicked​(java.awt.event.MouseEvent evt)
        Empty method, required by the MouseListener interface.
        Specified by:
        mouseClicked in interface java.awt.event.MouseListener

      • mouseEntered

        public void mouseEntered​(java.awt.event.MouseEvent evt)
        Empty method, required by the MouseMotionListener interface.
        Specified by:
        mouseEntered in interface java.awt.event.MouseListener

      • mouseExited

        public void mouseExited​(java.awt.event.MouseEvent evt)
        Empty method, required by the MouseMotionListener interface.
        Specified by:
        mouseExited in interface java.awt.event.MouseListener

      • mouseMoved

        public void mouseMoved​(java.awt.event.MouseEvent evt)
        Empty method, required by the MouseMotionListener interface.
        Specified by:
        mouseMoved in interface java.awt.event.MouseMotionListener