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## com.maryanovsky.gwtutils.client.ui
Class ButtonScrollPanel

    java.lang.Object
      com.google.gwt.user.client.ui.UIObject
          com.google.gwt.user.client.ui.Widget
              com.google.gwt.user.client.ui.Composite
                  com.maryanovsky.gwtutils.client.ui.ButtonScrollPanel

All Implemented Interfaces:
  HasAttachHandlers, HasHandlers, EventListener, HasVisibility, HasWidgets, IsRenderable, IsWidget, Iterable<Widget>

    public class ButtonScrollPanel

extends Composite
implements HasWidgets

A scroll panel which scrolls its contents with two buttons instead of a scroll bar.

Author:
  Maryanovsky Alexander

Nested Class Summary
`static interface` | `ButtonScrollPanel.Resources` The interface for the resources required by the scroll pane.

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject
`UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled`

Nested classes/interfaces inherited from interface com.google.gwt.user.client.ui.HasWidgets
`HasWidgets.ForIsWidget`

Field Summary

Fields inherited from class com.google.gwt.user.client.ui.UIObject
`DEBUG_ID_PREFIX`

Constructor Summary
`ButtonScrollPanel(ButtonScrollPanel.Resources resources)` Creates a new `ButtonScrollPanel` with the specified resources.

Method Summary
`void` | `add(Widget widget)` Adds a widget.
`void` | `clear()` Removes the widget.
`SimplePanel` | `getContentPanel()` Returns the panel where the scrollable child should be placed.
`int` | `getScrollDelay()` Returns the delay between scrolls, in milliseconds.
`int` | `getScrollStep()` Returns the number of pixels a single step scrolls.
`boolean` | `isScrollOnMouseOver()` Returns whether the scrolling occurs on mouse-over.
`Iterator<Widget>` | `iterator()` Returns an iterator listing the sole child, if any.
`boolean` | `remove(Widget widget)` Removes the widget.
`void` | `setContentWidget(Widget widget)` Sets the content widget.
`void` | `setScrollDelay(int scrollDelay)` Sets the delay between scrolls, in milliseconds.
`void` | `setScrollOnMouseOver(boolean isScrollOnMouseOver)` Sets whether the scrolling will occur on mouse-over.
`void` | `setScrollStep(int scrollStep)` Sets the number of pixels a single step will scroll.

Methods inherited from class com.google.gwt.user.client.ui.Composite
`claimElement, getWidget, initializeClaimedElement, initWidget, isAttached, onAttach, onBrowserEvent, onDetach, render, render, resolvePotentialElement, setWidget`

Methods inherited from class com.google.gwt.user.client.ui.Widget
`addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getHandlerCount, getLayoutData, getParent, isOrWasAttached, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents`

Methods inherited from class com.google.gwt.user.client.ui.UIObject
`addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString, unsinkEvents`

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

Constructor Detail

### ButtonScrollPanel

    public ButtonScrollPanel(ButtonScrollPanel.Resources resources)

  Creates a new `ButtonScrollPanel` with the specified resources.

Method Detail

### getContentPanel

    public SimplePanel getContentPanel()

  Returns the panel where the scrollable child should be placed.

### add

    public void add(Widget widget)

  Adds a widget. Note that you can't add more than one widget.

  Specified by:
    `add` in interface `HasWidgets`

### setContentWidget

    public void setContentWidget(Widget widget)

  Sets the content widget.

### clear

    public void clear()

  Removes the widget.

  Specified by:
    `clear` in interface `HasWidgets`

### iterator

    public Iterator<Widget> iterator()

  Returns an iterator listing the sole child, if any.

  Specified by:
    `iterator` in interface `HasWidgets`
  Specified by:
    `iterator` in interface `Iterable<Widget>`

### remove

    public boolean remove(Widget widget)

  Removes the widget.

  Specified by:
    `remove` in interface `HasWidgets`

### setScrollStep

    public void setScrollStep(int scrollStep)

  Sets the number of pixels a single step will scroll.

### getScrollStep

    public int getScrollStep()

  Returns the number of pixels a single step scrolls.

### setScrollDelay

    public void setScrollDelay(int scrollDelay)

  Sets the delay between scrolls, in milliseconds.

### getScrollDelay

    public int getScrollDelay()

  Returns the delay between scrolls, in milliseconds.

### isScrollOnMouseOver

    public boolean isScrollOnMouseOver()

  Returns whether the scrolling occurs on mouse-over. If `false`, the scrolling will only occur when the user actually presses the buttons.

### setScrollOnMouseOver

    public void setScrollOnMouseOver(boolean isScrollOnMouseOver)

  Sets whether the scrolling will occur on mouse-over. If not, the user will need to press the buttons to scroll.

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