org.gwt.advanced.client.ui.widget.cell

Class AbstractCell

java.lang.Object

com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.Widget

com.google.gwt.user.client.ui.Panel

com.google.gwt.user.client.ui.SimplePanel

org.gwt.advanced.client.ui.widget.cell.AbstractCell

All Implemented Interfaces:

com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.AcceptsOneWidget, com.google.gwt.user.client.ui.HasOneWidget, com.google.gwt.user.client.ui.HasVisibility, com.google.gwt.user.client.ui.HasWidgets, com.google.gwt.user.client.ui.HasWidgets.ForIsWidget, com.google.gwt.user.client.ui.IsWidget, Iterable<com.google.gwt.user.client.ui.Widget>, GridCell

Direct Known Subclasses:

BooleanCell, ComboBoxCell, DateCell, ExpandableCellImpl, HeaderCellImpl, ImageCell, LabelCell, ListCell, TextBaseCell

public abstract class AbstractCell
extends com.google.gwt.user.client.ui.SimplePanel
implements GridCell

This is an sbtract cell implementation.

All existing cells extend this class.

Since:

1.0.0

Author:

Sergey Skladchikov

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.UIObject.DebugIdImpl, com.google.gwt.user.client.ui.UIObject.DebugIdImplEnabled

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

com.google.gwt.user.client.ui.HasWidgets.ForIsWidget

Field Summary

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

DEBUG_ID_PREFIX

Constructor Summary

Constructors

Constructor and Description
AbstractCell()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addListeners(com.google.gwt.user.client.ui.Widget widget) This method adds default listeners to the content widget.
boolean	canBeDeactivated() This method checks whether a cell can be deactivated by a grid or another component on any input / output event produced outside the cell.
protected abstract com.google.gwt.user.client.ui.Widget	createActive() This method creates an active cell element (content).
protected abstract com.google.gwt.user.client.ui.Widget	createInactive() This method creates an inactive cell element (content).
void	displayActive(boolean active) This method shows the cell.
int	getColumn() This method gets a cell column number.
protected com.google.gwt.event.dom.client.BlurHandler	getDefaultBlurHandler() Getter for property 'defaultBlurHandler'.
com.google.gwt.user.client.ui.FlexTable	getGrid() This method gets a grid instance.
protected com.google.gwt.user.client.ui.Label	getLabel() Getter for property 'label'.
int	getRow() This method gets a cell row number.
Object	getValue() This method gets a cell value.
boolean	isActive() This method checks whether the cell is active.
protected boolean	isDefaultFocusListenerAdded() Getter for property 'defaultFocusListenerAdded'.
protected void	prepare(com.google.gwt.user.client.ui.Widget widget) This method prepares a cell before displaying it.
protected void	removeListeners(com.google.gwt.user.client.ui.Widget widget) This method removes default listeners from the content widget.
protected void	setActive(boolean active) Setter for property 'active'.
void	setGrid(com.google.gwt.user.client.ui.FlexTable grid) This method sets the grid instance.
protected void	setLabel(com.google.gwt.user.client.ui.Label label) Setter for property 'label'.
void	setPosition(int row, int column) This method specifies position of the cell in the grid (but doen't add it!).
void	setValue(Object value) This method sets a cell value.
boolean	valueEqual(Object value) This method compares values in this cell and in the specified cell.

Methods inherited from class com.google.gwt.user.client.ui.SimplePanel

add, getContainerElement, getWidget, iterator, remove, setWidget, setWidget

Methods inherited from class com.google.gwt.user.client.ui.Panel

add, adopt, adopt, clear, disown, doAttachChildren, doDetachChildren, orphan, remove

Methods inherited from class com.google.gwt.user.client.ui.Widget

addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, fireEvent, getHandlerCount, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onBrowserEvent, onDetach, 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, resolvePotentialElement, 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

Methods inherited from interface org.gwt.advanced.client.ui.widget.cell.GridCell

getNewValue, setFocus

Constructor Detail

AbstractCell

public AbstractCell()

Method Detail

getValue

public Object getValue()

This method gets a cell value.

Specified by:

getValue in interface GridCell

Returns:

a cell value.

setValue

public void setValue(Object value)

This method sets a cell value.

Specified by:

setValue in interface GridCell

Parameters:

value - is a cell value.

setPosition

public void setPosition(int row,
               int column)

This method specifies position of the cell in the grid (but doen't add it!).

Specified by:

setPosition in interface GridCell

Parameters:

row - is a row number.

column - is a column number.

getRow

public int getRow()

This method gets a cell row number.

Specified by:

getRow in interface GridCell

Returns:

a row number.

getColumn

public int getColumn()

This method gets a cell column number.

Specified by:

getColumn in interface GridCell

Returns:

a column number.

getGrid

public com.google.gwt.user.client.ui.FlexTable getGrid()

This method gets a grid instance.

Specified by:

getGrid in interface GridCell

Returns:

a grid instance.

setGrid

public void setGrid(com.google.gwt.user.client.ui.FlexTable grid)

This method sets the grid instance.

Specified by:

setGrid in interface GridCell

Parameters:

grid - is a grid instance.

isActive

public boolean isActive()

This method checks whether the cell is active.

Specified by:

isActive in interface GridCell

Returns:

true if the cell is active.

displayActive

public void displayActive(boolean active)

This method shows the cell.

Specified by:

displayActive in interface GridCell

Parameters:

active - is a flag meaning whether the cell must be shown as active.

valueEqual

public boolean valueEqual(Object value)

This method compares values in this cell and in the specified cell.

NOTE: it can return a result not correlating with the result of the equals method invocation.

Specified by:

valueEqual in interface GridCell

Parameters:

value - is a value to be compared.

Returns:

true if values are equal.

canBeDeactivated

public boolean canBeDeactivated()

This method checks whether a cell can be deactivated by a grid or another component on any input / output event produced outside the cell.

Most of cells always allow deactivation in this case, others only in particular situations.

Specified by:

canBeDeactivated in interface GridCell

Returns:

a result of check.

createActive

protected abstract com.google.gwt.user.client.ui.Widget createActive()

This method creates an active cell element (content).

Returns:

a content element.

createInactive

protected abstract com.google.gwt.user.client.ui.Widget createInactive()

This method creates an inactive cell element (content).

Returns:

a content element.

setActive

protected void setActive(boolean active)

Setter for property 'active'.

Parameters:

active - Value to set for property 'active'.

prepare

protected void prepare(com.google.gwt.user.client.ui.Widget widget)

This method prepares a cell before displaying it.

Parameters:

widget - is a content widget.

addListeners

protected void addListeners(com.google.gwt.user.client.ui.Widget widget)

This method adds default listeners to the content widget.

Parameters:

widget - is a content widget.

removeListeners

protected void removeListeners(com.google.gwt.user.client.ui.Widget widget)

This method removes default listeners from the content widget.

Parameters:

widget - is a content widget.

getLabel

protected com.google.gwt.user.client.ui.Label getLabel()

Getter for property 'label'.

Returns:

Value for property 'label'.

setLabel

protected void setLabel(com.google.gwt.user.client.ui.Label label)

Setter for property 'label'.

Parameters:

label - Value to set for property 'label'.

getDefaultBlurHandler

protected com.google.gwt.event.dom.client.BlurHandler getDefaultBlurHandler()

Getter for property 'defaultBlurHandler'.

Returns:

Value for property 'defaultBlurHandler'.

isDefaultFocusListenerAdded

protected boolean isDefaultFocusListenerAdded()

Getter for property 'defaultFocusListenerAdded'.

Returns:

Value for property 'defaultFocusListenerAdded'.