ScrollBarGuiImpl (P2J - Progress 4GL to Java Conversion and Runtime)

java.lang.Object
- com.goldencode.p2j.ui.client.widget.AbstractWidget<O>
- - com.goldencode.p2j.ui.client.widget.AbstractContainer<O>
  - - com.goldencode.p2j.ui.client.ScrollBar<GuiOutputManager>
    - - com.goldencode.p2j.ui.client.gui.ScrollBarGuiImpl

All Implemented Interfaces:

ScrollListener, Container<GuiOutputManager>, ScrollPublisher, Widget<GuiOutputManager>, WidgetWithConfig<BaseConfig>, ConfigOwner<BaseConfig>, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.util.EventListener
```
public class ScrollBarGuiImpl
extends ScrollBar<GuiOutputManager>
```
A GUI scroll bar implementation. TODO REPEAT_MILLIS constant is used to simulate mouse press repeated events. This parameter should be configurable for different customers and users.

Nested Class Summary
- Nested classes/interfaces inherited from class com.goldencode.p2j.ui.client.ScrollBar
  ScrollBar.Bars, ScrollBar.Orientation, ScrollBar.Position, ScrollBar.ScrollStep

Field Summary

Fields
Modifier and Type	Field and Description
`private boolean`	`dragStarted` The flag indicating the drag operation has been started for scroll bar thumb.
`private GuiColorResolver`	`gc` Color resolver
`private GuiDriver`	`gd` Screen driver
`private double`	`hOff` Height correction (bottom part)
`private ScrollBarGuiButton`	`lButt` Left button
`(package private) boolean`	`pressed` Mouse pressed indicator.
`private ScrollBarGuiButton`	`rButt` Right button
`private ScrollbarExecutor`	`scrollbarExecutor` Executor for handling mouse input.
`private NativeDimension`	`thumbDim` Thumb button size
`private boolean`	`thumbHover` Mouse hovers the thumb.
`private int`	`thumbOffset` The offset of mouse-press event relative to thumb x-location.
`private NativePoint`	`thumbPos` Thumb button position
`private boolean`	`thumbPressed` Mouse pressed indicator for thumb.
`private Viewport<GuiOutputManager>`	`viewport` The related viewport
`private double`	`wOff` Width correction (right part)

Fields inherited from class com.goldencode.p2j.ui.client.ScrollBar
config, controller, customStep, longStep, max, orientation, position, scrollListeners, shortStep

Fields inherited from class com.goldencode.p2j.ui.client.widget.AbstractWidget
listeners, location, mousePtr, nativeInsets, physicalLocation

Constructor Summary

Constructors
Constructor and Description
`ScrollBarGuiImpl(WidgetId id, ScrollBar.Orientation orientation, Viewport<GuiOutputManager> viewport)` Constructor.
`ScrollBarGuiImpl(WidgetId id, Viewport<GuiOutputManager> viewport)` Default constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`activateDirectManipulation()` Activates direct manipulation engine for this widget.
`ScrollEvent`	`createAutoScrollEvent(ScrollBar.Position btn)` Create GUI specific auto-scroll event if the changed position is valid, otherwise it returns null indicating that it is not required to send scroll events due to the current scroller's position reaches its bounds.
`protected ScrollEvent`	`createScrollEvent(int newPosition)` Create UI specific scroll event.
`private ScrollBar.Position`	`currentMouseOverArea(NativePoint mousePos)` Determines if the mouse pointer is over an area between the thumb and a scroll arrow.
`void`	`deactivateDirectManipulation()` Deactivates direct manipulation engine for this widget.
`void`	`destroy()` Destroy this widget.
`void`	`doLayout()` Layout container.
`void`	`draw()` Widget drawing method.
`(package private) int`	`getButtonSize()` Get size of the button.
`double`	`getHeightCorrection()` Get height correction (bottom part)
`Widget<GuiOutputManager>`	`getOwningWidget()` Gets the widget, that owns this scrollbar.
`NativeDimension`	`getThumbDim()` Get thumb size for the scroll bar.
`(package private) int`	`getThumbOffset()` Get thumb offset (mouse click point relative to thumb position).
`(package private) int`	`getTravelSize()` Get size of the travel area available for thumb scrolling.
`double`	`getWidthCorrection()` Get width correction (right part).
`double`	`height()` Get widget height.
`private void`	`init()` Scroll bar initialization.
`private boolean`	`isOverThumbButton(java.awt.event.MouseEvent event)` Check if mouse is over thumb button.
`boolean`	`isRMBEntrySupported()` Check if this widget gains ENTRY event when right/middle mouse button is clicked.
`boolean`	`maySwitchFocus()` Some widgets (like scroll bars) react on user input (like mouse click), but don't steal focus from currently focused widget.
`protected int[]`	`mouseActions()` Determine the mouse actions processed by this widget.
`void`	`mouseClicked(java.awt.event.MouseEvent e)` // TODO: this triggers repaint on each mouse move over it...
`void`	`mouseDragged(java.awt.event.MouseEvent e)` Notification of a mouse dragged event occurred for this widget.
`void`	`mouseEntered(java.awt.event.MouseEvent e)` Notification of a mouse entered event occurred for this widget.
`void`	`mouseExited(java.awt.event.MouseEvent e)` Notification of a mouse exited event occurred for this widget.
`void`	`mouseMoved(java.awt.event.MouseEvent e)` Notification of a mouse moved event occurred for this widget.
`void`	`mousePressed(java.awt.event.MouseEvent e)` Notification of a mouse pressed event occurred for this widget.
`void`	`mouseReleased(java.awt.event.MouseEvent e)` Notification of a mouse released event occurred for this widget.
`void`	`mouseWheelMoved(java.awt.event.MouseWheelEvent e)` Notification of a mouse wheel moved event occurred for this widget.
`void`	`onButtonClick(ScrollBar.Position button, ScrollBar.ScrollStep scrollStep, MouseEvt e)` Notification on scroll bar button click.
`int`	`position(java.awt.event.MouseEvent e)` Determine the equivalent scroll bar position which correspond to actual mouse position.
`int`	`position(NativePoint mousePos)` Determine the equivalent scroll bar position which correspond to actual mouse position.
`boolean`	`raiseLegacyMouseEvents()` Check if the widget implementation can raise legacy, 4GL-style, mouse events.
`private static boolean`	`rectContains(int x, int y, int width, int height, NativePoint mousePos)` Determines if the rectangle specified by its coordinates contains the mouse pointer.
`private void`	`refresh()` Invoke repaint for this widget.
`void`	`repaint()` Request widget repainting.
`int`	`resolvePopupMenuId()` Returns the popup menu effective for this widget.
`(package private) ScrollBar.Position`	`scrollDirection(java.awt.event.MouseEvent e)`
`void`	`setHeightCorrection(double newValue)` Set height correction (bottom part)
`void`	`setWidthCorrection(double wOff)` Set width correction (right part).
`private void`	`showPopup(java.awt.event.MouseEvent e)` Shows the scroll bar popup menu.
`double`	`width()` Get widget width.

Methods inherited from class com.goldencode.p2j.ui.client.ScrollBar
addScrollListener, adjustControlledScrollbar, afterConfigUpdate, clear, clearScrollListeners, config, getBaseStep, getMax, getPosition, handleScrollEvent, initialize, isControlled, notifyScrollListeners, onDrag, orientation, positionUpdated, range, setController, setMax, setPosition, setStep

Methods inherited from class com.goldencode.p2j.ui.client.widget.AbstractContainer
add, add, add, addContainerStateListener, addDirectly, belongsTo, checkWidget, childrenLocation, clipping, clipRectangle, copyState, currentFocus, currentFocus, cycleFocus, defaultFocus, deregisterSelectedWidget, detach, dimension, dumpCurrentWidgets, dumpWidgets, endSizeChange, findMouseSource, firstFocus, focus, focusTraversable, focusWorker, formatDump, get, getAllSelectedWidgets, getClipRect, getEffectiveScrollableSize, getFocusInt, getIgnoreFocus, getLayout, getScrollableSize, getTabItemList, hasFocusable, insets, lastFocus, minimumSize, moveAfterTabItem, moveBeforeTabItem, moveToBottom, moveToBottomInClass, moveToTop, moveToTopInClass, moveToZpos, nextFocus, normalizeZOrder, onWidgetAdded, onWidgetRemoved, paintOnTop, parentOf, prepareWidgets, prevFocus, processKeyEvent, reflectAncestorChange, reflectLocationChanged, registerSelectedWidget, remove, removeContainerStateListener, replace, requestFocus, requestFocus, setFocus, setFocusInt, setHeight, setIgnoreFocus, setInsets, setLayout, setPhysicalDimensionInt, setSize, setSize, setTabItemList, setWidth, startSizeChange, swap, triggerContainerStateRedrawEnabled, unrealize, updateSizeWorker, widgets, widgetsAsList, widgetStateChanged

Methods inherited from class com.goldencode.p2j.ui.client.widget.AbstractWidget
_setHidden, _setVisible, addFocusListener, addKeyListener, afterConfigUpdateBase, ancestor, ancestorId, autoResize, bounds, clear, clearWidget, clipRectangle, clipRectangle, clipWith, copyColors, createMouseHoverAction, debug, disable, disableTooltip, displayPhysicalLocation, drawCaret, enable, enableTooltip, enclosingFrame, forceCursorOnFocus, forceVisibility, getActualBounds, getAndResetBitmap, getAndSetBitmap, getBitmapCopy, getCachedScreenLocation, getCachedScreenPhysicalLocation, getCustomMousePointer, getDefaultEvent, getEffectiveMousePointer, getId, getLoadedMousePointer, getMenuMouse, getMouseActions, getMousePosition, getPortableMouseEventCoordinates, getSelectedText, getState, getTextHeight, getTextHeightNative, getTextHeightNative, getTextWidth, getTextWidth, getTextWidthNative, getTextWidthNative, getVisiblePart, getZOrderClass, hasFocus, hasTooltip, hidden, hide, highlighted, ignoreAction, initialHeight, initialWidth, isCurrent, isDirectManipulationActive, isDirectManipulationActiveOrInUIB, isDirectManipulationCapable, isDirectManipulationRequired, isDisplayed, isEnabled, isFocusable, isHeader, isMouseDrag, isRealized, isRepaintDisabled, isScreenLocationCached, isTabStop, isThreeD, isTotallyObscured, isVisible, isVisible, location, manageSystemActions, moveToBottom, moveToTop, name, navigable, oleDoDrop, oleDrag, oleDragging, oleStartDragging, onOleDragging, onOleDropEnd, parent, parent, parentObject, parentOrSelf, parentOrSelfObject, physicalBounds, physicalDimension, physicalLocation, postprocessConfig, prepParentLocation, preventFocusWhenMouseDownEventDefined, processDirectManipulationEvent, processEvent, processFocusEvent, processKeyEventForSelectableWidget, processKeyListeners, processMnemonic, processMnemonicImpl, processSystemKey, reflectSizeChanged, refresh, registerWidgetListener, repaint, repaint, requestSync, resetBitmap, resizeTo, resolveFont, resolveTitleFont, screen, screenDimension, screenHeight, screenLocation, screenPhysicalLocation, screenWidth, setBitmap, setCachedScreenLocation, setCachedScreenPhysicalLocation, setDirectManipulationActive, setEnabled, setHidden, setHighlighted, setLocation, setLocation, setMousePointer, setMousePointer, setParent, setPhysicalLocation, setSensitiveForUIB, setState, setVisible, setWindow, show, showPopupMenu, supportsCustomMousePointer, sync, topLevelWindow, toString, translate, triggerLocationChanged, unregisterWidgetListener, updateSystemParent, widgetRealized, window

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.goldencode.p2j.ui.client.widget.Container
widgetsAsList

Methods inherited from interface com.goldencode.p2j.ui.client.widget.Widget
acceptsEscAsAnyKey, acceptTrigger, addFocusListener, addKeyListener, ancestor, ancestorId, bounds, canMovetoTop, clearWidget, completeTrigger, defaultMousePtr, displayPhysicalLocation, drawCaret, enclosingFrame, enforceDefaultMousePtr, forceCursorOnFocus, forceVisibility, getActualBounds, getCustomMousePointer, getEffectiveMousePointer, getId, getIdForTrigger, getLegacyWidget, getLoadedMousePointer, getMenuMouse, getMouseActions, getMousePosition, getSelectedText, getState, getTriggerWidget, getTriggerWidget, getVisiblePart, getZOrderClass, hasFocus, hasFocus, hasTooltip, hidden, hide, highlighted, ignoreEnable, initialHeight, initialWidth, isCurrent, isCurrent, isDirectManipulable, isDirectManipulationActive, isDirectManipulationActiveOrInUIB, isDisplayed, isDroppable, isEnabled, isFocusable, isHeader, isInitialValueLayout, isLegacyFocus, isProcessProgressEvent, isRealized, isRepaintDisabled, isTabStop, isThreeD, isTotallyObscured, isVisible, isVisible, location, moveToBottom, moveToTop, name, navigable, oleDrag, parent, parent, parent, parentObject, parentOrSelf, parentOrSelfObject, physicalBounds, physicalDimension, physicalLocation, postprocessConfig, preventFocusWhenMouseDownEventDefined, processDirectManipulationEvent, processEvent, processFocusEvent, processKeyListeners, processMnemonic, refreshWidget, registerWidgetListener, repaint, repaint, requestFocus, requestSync, resizeTo, screen, screenLocation, screenPhysicalLocation, setDirectManipulationActive, setEnabled, setHidden, setHighlighted, setLocation, setLocation, setMousePointer, setMousePointer, setParent, setPhysicalLocation, setSensitiveForUIB, setState, setVisible, setWindow, show, startTrigger, supportsCustomMousePointer, systemFocusGrabbed, topLevelWindow, unregisterWidgetListener, validateDisplayValue, window

- Field Detail
  - scrollbarExecutor
```
private ScrollbarExecutor scrollbarExecutor
```
    Executor for handling mouse input.
  - gd
```
private GuiDriver gd
```
    Screen driver
  - gc
```
private GuiColorResolver gc
```
    Color resolver
  - viewport
```
private Viewport<GuiOutputManager> viewport
```
    The related viewport
  - lButt
```
private ScrollBarGuiButton lButt
```
    Left button
  - rButt
```
private ScrollBarGuiButton rButt
```
    Right button
  - thumbPos
```
private NativePoint thumbPos
```
    Thumb button position
  - thumbDim
```
private NativeDimension thumbDim
```
    Thumb button size
  - wOff
```
private double wOff
```
    Width correction (right part)
  - hOff
```
private double hOff
```
    Height correction (bottom part)
  - pressed
```
volatile boolean pressed
```
    Mouse pressed indicator.
  - thumbPressed
```
private boolean thumbPressed
```
    Mouse pressed indicator for thumb. If true then the mouse clicked the thumb and probably is dragging it.
  - thumbHover
```
private boolean thumbHover
```
    Mouse hovers the thumb. If true then the mouse if located over the thumb. Some Themes draw the thumb different in this case.
  - dragStarted
```
private boolean dragStarted
```
    The flag indicating the drag operation has been started for scroll bar thumb.
  - thumbOffset
```
private int thumbOffset
```
    The offset of mouse-press event relative to thumb x-location.
- Constructor Detail
  - ScrollBarGuiImpl
```
public ScrollBarGuiImpl(WidgetId id,
                        Viewport<GuiOutputManager> viewport)
```
    Default constructor.
    
    Parameters:
    
    id - The widget's ID.
    
    viewport - The related viewport.
  - ScrollBarGuiImpl
```
ScrollBarGuiImpl(WidgetId id,
                 ScrollBar.Orientation orientation,
                 Viewport<GuiOutputManager> viewport)
```
    Constructor.
    
    Parameters:
    
    id - The widget's ID.
    
    orientation - Scroll bar orientation.
    
    viewport - The related viewport.
- Method Detail
  - width
```
public double width()
```
    Get widget width.
    
    Specified by:
    
    width in interface Widget<GuiOutputManager>
    
    Overrides:
    
    width in class AbstractContainer<GuiOutputManager>
    
    Returns:
    
    widget width.
  - height
```
public double height()
```
    Get widget height.
    
    Specified by:
    
    height in interface Widget<GuiOutputManager>
    
    Overrides:
    
    height in class AbstractContainer<GuiOutputManager>
    
    Returns:
    
    widget height.
  - doLayout
```
public void doLayout()
```
    Layout container.
    
    Specified by:
    
    doLayout in interface Container<GuiOutputManager>
    
    Overrides:
    
    doLayout in class AbstractContainer<GuiOutputManager>
  - repaint
```
public void repaint()
```
    Request widget repainting. Also perform widget layout.
    
    Specified by:
    
    repaint in interface Widget<GuiOutputManager>
    
    Overrides:
    
    repaint in class AbstractContainer<GuiOutputManager>
  - draw
```
public void draw()
```
    Widget drawing method.
    
    Specified by:
    
    draw in interface Widget<GuiOutputManager>
    
    Specified by:
    
    draw in class ScrollBar<GuiOutputManager>
  - mouseClicked
```
public void mouseClicked(java.awt.event.MouseEvent e)
```
    // TODO: this triggers repaint on each mouse move over it... needs to be moved in some // layout/initialization code Notification of a mouse clicked event occurred for this widget.
    
    Specified by:
    
    mouseClicked in interface java.awt.event.MouseListener
    
    Overrides:
    
    mouseClicked in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mouseDragged
```
public void mouseDragged(java.awt.event.MouseEvent e)
```
    Notification of a mouse dragged event occurred for this widget.
    
    Specified by:
    
    mouseDragged in interface java.awt.event.MouseMotionListener
    
    Overrides:
    
    mouseDragged in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mousePressed
```
public void mousePressed(java.awt.event.MouseEvent e)
```
    Notification of a mouse pressed event occurred for this widget. No-op by default.
    
    Specified by:
    
    mousePressed in interface java.awt.event.MouseListener
    
    Overrides:
    
    mousePressed in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mouseReleased
```
public void mouseReleased(java.awt.event.MouseEvent e)
```
    Notification of a mouse released event occurred for this widget.
    
    Specified by:
    
    mouseReleased in interface java.awt.event.MouseListener
    
    Overrides:
    
    mouseReleased in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mouseMoved
```
public void mouseMoved(java.awt.event.MouseEvent e)
```
    Notification of a mouse moved event occurred for this widget.
    
    Specified by:
    
    mouseMoved in interface java.awt.event.MouseMotionListener
    
    Overrides:
    
    mouseMoved in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mouseEntered
```
public void mouseEntered(java.awt.event.MouseEvent e)
```
    Notification of a mouse entered event occurred for this widget.
    
    Specified by:
    
    mouseEntered in interface java.awt.event.MouseListener
    
    Overrides:
    
    mouseEntered in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mouseExited
```
public void mouseExited(java.awt.event.MouseEvent e)
```
    Notification of a mouse exited event occurred for this widget.
    
    Specified by:
    
    mouseExited in interface java.awt.event.MouseListener
    
    Overrides:
    
    mouseExited in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - mouseWheelMoved
```
public void mouseWheelMoved(java.awt.event.MouseWheelEvent e)
```
    Notification of a mouse wheel moved event occurred for this widget.
    
    Specified by:
    
    mouseWheelMoved in interface java.awt.event.MouseWheelListener
    
    Overrides:
    
    mouseWheelMoved in class AbstractWidget<GuiOutputManager>
    
    Parameters:
    
    e - The mouse event.
  - raiseLegacyMouseEvents
```
public boolean raiseLegacyMouseEvents()
```
    Check if the widget implementation can raise legacy, 4GL-style, mouse events.
    
    Specified by:
    
    raiseLegacyMouseEvents in interface Widget<GuiOutputManager>
    
    Overrides:
    
    raiseLegacyMouseEvents in class AbstractWidget<GuiOutputManager>
    
    Returns:
    
    Always false.
  - destroy
```
public void destroy()
```
    Destroy this widget. Cleans up all including widgets before destruction.
    
    Specified by:
    
    destroy in interface Widget<GuiOutputManager>
    
    Overrides:
    
    destroy in class AbstractContainer<GuiOutputManager>
  - isRMBEntrySupported
```
public boolean isRMBEntrySupported()
```
    Check if this widget gains ENTRY event when right/middle mouse button is clicked.
    
    Specified by:
    
    isRMBEntrySupported in interface Widget<GuiOutputManager>
    
    Overrides:
    
    isRMBEntrySupported in class AbstractWidget<GuiOutputManager>
    
    Returns:
    
    true if this widget gains ENTRY event when right/middle mouse button is clicked.
  - getOwningWidget
```
public Widget<GuiOutputManager> getOwningWidget()
```
    Gets the widget, that owns this scrollbar. For message area or window workspace return the Window.
    
    Returns:
    
    Widget. MessageAreaGuiImpl and WindowWorkspace are subclasses of ScrollPane, therefore when scrollbar is owned by message area or workspace - this method returns Window.
  - createAutoScrollEvent
```
public ScrollEvent createAutoScrollEvent(ScrollBar.Position btn)
```
    Create GUI specific auto-scroll event if the changed position is valid, otherwise it returns null indicating that it is not required to send scroll events due to the current scroller's position reaches its bounds.
    
    Parameters:
    
    btn - The source button that caused the event.
    
    Returns:
    
    Returns the valid scroll event if the current scroller's position doesn't reach its bounds, otherwise null.
  - onButtonClick
```
public void onButtonClick(ScrollBar.Position button,
                          ScrollBar.ScrollStep scrollStep,
                          MouseEvt e)
```
    Notification on scroll bar button click.
    
    Overrides:
    
    onButtonClick in class ScrollBar<GuiOutputManager>
    
    Parameters:
    
    button - Clicked button.
    
    scrollStep - The indicator of the desired scroll step. How far we scroll depends on the location of the mouse-click. For example, scroll bar buttons generate a short scroll versus the location between the scroll button and scroll thumb generates a long scroll.
    
    e - The mouse event. null means KeyEvent
  - getThumbDim
```
public NativeDimension getThumbDim()
```
    Get thumb size for the scroll bar.
    
    Returns:
    
    thumb size for the scroll bar (in pixels).
  - maySwitchFocus
```
public boolean maySwitchFocus()
```
    Some widgets (like scroll bars) react on user input (like mouse click), but don't steal focus from currently focused widget. This method should be overriden by such widgets.
    Scroll bar is sensitive to user input, but never switches focus.
    
    Returns:
    
    Returns true if the widget may steal focus from currently focused widget, false otherwise.
  - activateDirectManipulation
```
public void activateDirectManipulation()
```
    Activates direct manipulation engine for this widget.
    
    Overrides:
    
    activateDirectManipulation in class AbstractWidget<GuiOutputManager>
  - deactivateDirectManipulation
```
public void deactivateDirectManipulation()
```
    Deactivates direct manipulation engine for this widget.
    
    Overrides:
    
    deactivateDirectManipulation in class AbstractWidget<GuiOutputManager>
  - createScrollEvent
```
protected ScrollEvent createScrollEvent(int newPosition)
```
    Create UI specific scroll event.
    
    Overrides:
    
    createScrollEvent in class ScrollBar<GuiOutputManager>
    
    Parameters:
    
    newPosition - New scroll position.
    
    Returns:
    
    The created event.
  - init
```
private void init()
```
    Scroll bar initialization.
  - isOverThumbButton
```
private boolean isOverThumbButton(java.awt.event.MouseEvent event)
```
    Check if mouse is over thumb button.
    
    Parameters:
    
    event - Mouse event.
    
    Returns:
    
    true if mouse under the thumb button false otherwise.
  - currentMouseOverArea
```
private ScrollBar.Position currentMouseOverArea(NativePoint mousePos)
```
    Determines if the mouse pointer is over an area between the thumb and a scroll arrow.
    Parameters:
    
    mousePos - The mouse position to inspect.
    
    Returns:
    ScrollBar.Position.LEFT if the mouse pointer is over an area between the thumb and the left scroll arrow.
    
    ScrollBar.Position.RIGHT if the mouse pointer is over an area between the thumb and the right scroll arrow.
    
    null otherwise.
  - rectContains
```
private static boolean rectContains(int x,
                                    int y,
                                    int width,
                                    int height,
                                    NativePoint mousePos)
```
    Determines if the rectangle specified by its coordinates contains the mouse pointer.
    
    Parameters:
    
    x - X coordinate of the top-left corner of the rectangle
    
    y - Y coordinate of the top-left corner of the rectangle
    
    width - Rectangle width.
    
    height - Rectangle heigth.
    
    mousePos - Position of the mouse pointer.
    
    Returns:
    
    true if the rectangle contains the mouse pointer.
  - position
```
public int position(java.awt.event.MouseEvent e)
```
    Determine the equivalent scroll bar position which correspond to actual mouse position.
    
    Parameters:
    
    e - Mouse event.
    
    Returns:
    
    see above.
  - position
```
public int position(NativePoint mousePos)
```
    Determine the equivalent scroll bar position which correspond to actual mouse position.
    
    Parameters:
    
    mousePos - The point where mouse is clicked.
    
    Returns:
    
    see above.
  - resolvePopupMenuId
```
public int resolvePopupMenuId()
```
    Returns the popup menu effective for this widget.
    
    Specified by:
    
    resolvePopupMenuId in interface Widget<GuiOutputManager>
    
    Overrides:
    
    resolvePopupMenuId in class AbstractWidget<GuiOutputManager>
    
    Returns:
    
    Popup menu id or -1 if no menu is found.
  - mouseActions
```
protected int[] mouseActions()
```
    Determine the mouse actions processed by this widget.
    
    Overrides:
    
    mouseActions in class AbstractWidget<GuiOutputManager>
    
    Returns:
    
    See above.
  - getTravelSize
```
int getTravelSize()
```
    Get size of the travel area available for thumb scrolling.
    
    Returns:
    
    size of travel area, in pixels.
  - getButtonSize
```
int getButtonSize()
```
    Get size of the button.
    
    Returns:
    
    size of one of the buttons in pixels.
  - getThumbOffset
```
int getThumbOffset()
```
    Get thumb offset (mouse click point relative to thumb position).
    
    Returns:
    
    thumbOffset
  - scrollDirection
```
ScrollBar.Position scrollDirection(java.awt.event.MouseEvent e)
```
    Parameters:
    
    e - Mouse event.
    
    Returns:
    
    see above.
  - refresh
```
private void refresh()
```
    Invoke repaint for this widget.
  - showPopup
```
private void showPopup(java.awt.event.MouseEvent e)
```
    Shows the scroll bar popup menu.
    
    Parameters:
    
    e - The mouse event caused the menu to be shown.
  - getWidthCorrection
```
public double getWidthCorrection()
```
    Get width correction (right part).
    
    Returns:
    
    See above.
  - setWidthCorrection
```
public void setWidthCorrection(double wOff)
```
    Set width correction (right part).
    
    Parameters:
    
    wOff - the new width correction value
  - getHeightCorrection
```
public double getHeightCorrection()
```
    Get height correction (bottom part)
    
    Returns:
    
    See above.
  - setHeightCorrection
```
public void setHeightCorrection(double newValue)
```
    Set height correction (bottom part)
    
    Parameters:
    
    newValue - the new height correction value

Class ScrollBarGuiImpl

Nested Class Summary

Nested classes/interfaces inherited from class com.goldencode.p2j.ui.client.ScrollBar

Field Summary

Fields inherited from class com.goldencode.p2j.ui.client.ScrollBar

Fields inherited from class com.goldencode.p2j.ui.client.widget.AbstractWidget

Constructor Summary

Method Summary

Methods inherited from class com.goldencode.p2j.ui.client.ScrollBar

Methods inherited from class com.goldencode.p2j.ui.client.widget.AbstractContainer

Methods inherited from class com.goldencode.p2j.ui.client.widget.AbstractWidget

Methods inherited from class java.lang.Object

Methods inherited from interface com.goldencode.p2j.ui.client.widget.Container

Methods inherited from interface com.goldencode.p2j.ui.client.widget.Widget

Field Detail

scrollbarExecutor

gd

gc

viewport

lButt

rButt

thumbPos

thumbDim

wOff

hOff

pressed

thumbPressed

thumbHover

dragStarted

thumbOffset

Constructor Detail

ScrollBarGuiImpl

ScrollBarGuiImpl

Method Detail

width

height

doLayout

repaint

draw

mouseClicked

mouseDragged

mousePressed

mouseReleased

mouseMoved

mouseEntered

mouseExited

mouseWheelMoved

raiseLegacyMouseEvents

destroy

isRMBEntrySupported

getOwningWidget

createAutoScrollEvent

onButtonClick

getThumbDim

maySwitchFocus

activateDirectManipulation

deactivateDirectManipulation

createScrollEvent

init

isOverThumbButton

currentMouseOverArea

rectContains

position

position

resolvePopupMenuId

mouseActions

getTravelSize

getButtonSize

getThumbOffset

scrollDirection

refresh

showPopup

getWidthCorrection

setWidthCorrection

getHeightCorrection

setHeightCorrection