## com.google.gwt.user.client.ui
Class HTMLTable

    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.HTMLTable

All Implemented Interfaces:
  EventListener, HasWidgets, SourcesTableEvents

Direct Known Subclasses:
  FlexTable, Grid

    public abstract class HTMLTable

extends Panel
implements SourcesTableEvents

HTMLTable contains the common table algorithms for `Grid` and `FlexTable`.

Nested Class Summary
`class` `HTMLTable.CellFormatter` This class contains methods used to format a table's cells.
`class` `HTMLTable.ColumnFormatter` This class contains methods used to format a table's columns.
`class` `HTMLTable.RowFormatter` This class contains methods used to format a table's rows.

Constructor Summary
`HTMLTable()` Create a new empty HTML Table.

Method Summary
`void` `addTableListener(TableListener listener)` Adds a listener to the current table.
`protected void` `checkCellBounds(int row, int column)` Bounds checks that the cell exists at the specified location.
`protected void` `checkRowBounds(int row)` Checks that the row is within the correct bounds.
`void` `clear()` Removes all widgets from this table, but does not remove other HTML or text contents of cells.
`boolean` `clearCell(int row, int column)` Clears the given row and column.
`protected Element` `createCell()` Creates a new cell.
`protected Element` `getBodyElement()` Gets the table's TBODY element.
`abstract int` `getCellCount(int row)` Gets the number of cells in a given row.
`HTMLTable.CellFormatter` `getCellFormatter()` Gets the `HTMLTable.CellFormatter` associated with this table.
`int` `getCellPadding()` Gets the amount of padding that is added around all cells.
`int` `getCellSpacing()` Gets the amount of spacing that is added around all cells.
`HTMLTable.ColumnFormatter` `getColumnFormatter()` Gets the column formatter.
`protected int` `getDOMCellCount(Element tableBody, int row)` Directly ask the underlying DOM what the cell count on the given row is.
`protected int` `getDOMCellCount(int row)` Directly ask the underlying DOM what the cell count on the given row is.
`protected int` `getDOMRowCount()` Directly ask the underlying DOM what the row count is.
`protected int` `getDOMRowCount(Element elem)`
`protected Element` `getEventTargetCell(Event event)` Determines the TD associated with the specified event.
`java.lang.String` `getHTML(int row, int column)` Gets the HTML contents of the specified cell.
`abstract int` `getRowCount()` Gets the number of rows present in this table.
`HTMLTable.RowFormatter` `getRowFormatter()` Gets the RowFormatter associated with this table.
`java.lang.String` `getText(int row, int column)` Gets the text within the specified cell.
`Widget` `getWidget(int row, int column)` Gets the widget in the specified cell.
`protected void` `insertCell(int row, int column)` Inserts a new cell into the specified row.
`protected void` `insertCells(int row, int column, int count)` Inserts a number of cells before the specified cell.
`protected int` `insertRow(int beforeRow)` Inserts a new row into the table.
`protected boolean` `internalClearCell(Element td, boolean clearInnerHTML)` Does actual clearing, used by clearCell and cleanCell.
`boolean` `isCellPresent(int row, int column)` Determines whether the specified cell exists.
`java.util.Iterator` `iterator()` Returns an iterator containing all the widgets in this table.
`void` `onBrowserEvent(Event event)` Method to process events generated from the browser.
`protected abstract void` `prepareCell(int row, int column)` Subclasses must implement this method.
`protected void` `prepareColumn(int column)` Subclasses can implement this method.
`protected abstract void` `prepareRow(int row)` Subclasses must implement this method.
`boolean` `remove(Widget widget)` Remove the specified widget from the table.
`protected void` `removeCell(int row, int column)` Removes the specified cell from the table.
`protected void` `removeRow(int row)` Removes the specified row from the table.
`void` `removeTableListener(TableListener listener)` Removes the specified table listener.
`void` `setBorderWidth(int width)` Sets the width of the table's border.
`protected void` `setCellFormatter(HTMLTable.CellFormatter cellFormatter)` Sets the table's CellFormatter.
`void` `setCellPadding(int padding)` Sets the amount of padding to be added around all cells.
`void` `setCellSpacing(int spacing)` Sets the amount of spacing to be added around all cells.
`protected void` `setColumnFormatter(HTMLTable.ColumnFormatter formatter)`
`void` `setHTML(int row, int column, java.lang.String html)` Sets the HTML contents of the specified cell.
`protected void` `setRowFormatter(HTMLTable.RowFormatter rowFormatter)` Sets the table's RowFormatter.
`void` `setText(int row, int column, java.lang.String text)` Sets the text within the specified cell.
`void` `setWidget(int row, int column, Widget widget)` Sets the widget within the specified cell.

Methods inherited from class com.google.gwt.user.client.ui.Panel
`add, adopt, adopt, disown, doAttachChildren, doDetachChildren, onLoad, onUnload, orphan`

Methods inherited from class com.google.gwt.user.client.ui.Widget
`getParent, isAttached, onAttach, onDetach, removeFromParent, setElement`

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

`addStyleDependentName, addStyleName, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, removeStyleDependentName, removeStyleName, setHeight, setPixelSize, setSize, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkEvents, toString, unsinkEvents`

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

Constructor Detail

### HTMLTable

    public HTMLTable()

  Create a new empty HTML Table.

Method Detail

### addTableListener

    public void addTableListener(TableListener listener)

  Adds a listener to the current table.

  Specified by:
    `addTableListener` in interface `SourcesTableEvents`
  Parameters:
    `listener` - listener to add

### clear

    public void clear()

  Removes all widgets from this table, but does not remove other HTML or text contents of cells.

  Specified by:
    `clear` in interface `HasWidgets`
  Overrides:
    `clear` in class `Panel`

### clearCell

    public boolean clearCell(int row,
                             int column)

  Clears the given row and column. If it contains a Widget, it will be removed from the table. If not, its contents will simply be cleared.

  Parameters:
    `row` - the widget's column
    `column` - the widget's column
  Returns:
    true if a widget was removed
  Throws:
    `java.lang.IndexOutOfBoundsException`

### getCellCount

    public abstract int getCellCount(int row)

  Gets the number of cells in a given row.

  Parameters:
    `row` - the row whose cells are to be counted
  Returns:
    the number of cells present in the row

### getCellFormatter

    public HTMLTable.CellFormatter getCellFormatter()

  Gets the `HTMLTable.CellFormatter` associated with this table. Use casting to get subclass-specific functionality

  Returns:
    this table's cell formatter

### getCellPadding

    public int getCellPadding()

  Gets the amount of padding that is added around all cells.

  Returns:
    the cell padding, in pixels

### getCellSpacing

    public int getCellSpacing()

  Gets the amount of spacing that is added around all cells.

  Returns:
    the cell spacing, in pixels

### getColumnFormatter

    public HTMLTable.ColumnFormatter getColumnFormatter()

  Gets the column formatter.

  Returns:
    the column formatter

### getHTML

    public java.lang.String getHTML(int row,
                                    int column)

  Gets the HTML contents of the specified cell.

  Parameters:
    `row` - the cell's row
    `column` - the cell's column
  Returns:
    the cell's HTML contents
  Throws:
    `java.lang.IndexOutOfBoundsException`

### getRowCount

    public abstract int getRowCount()

  Gets the number of rows present in this table.

  Returns:
    the table's row count

### getRowFormatter

    public HTMLTable.RowFormatter getRowFormatter()

  Gets the RowFormatter associated with this table.

  Returns:
    the table's row formatter

### getText

    public java.lang.String getText(int row,
                                    int column)

  Gets the text within the specified cell.

  Parameters:
    `row` - the cell's row
    `column` - the cell's column
  Returns:
    the cell's text contents
  Throws:
    `java.lang.IndexOutOfBoundsException`

### getWidget

    public Widget getWidget(int row,
                            int column)

  Gets the widget in the specified cell.

  Parameters:
    `row` - the cell's row
    `column` - the cell's column
  Returns:
    the widget in the specified cell, or `null` if none is present
  Throws:
    `java.lang.IndexOutOfBoundsException`

### isCellPresent

    public boolean isCellPresent(int row,
                                 int column)

  Determines whether the specified cell exists.

  Parameters:
    `row` - the cell's row
    `column` - the cell's column
  Returns:
    `true` if the specified cell exists

### iterator

    public java.util.Iterator iterator()

  Returns an iterator containing all the widgets in this table.

  Specified by:
    `iterator` in interface `HasWidgets`
  Returns:
    the iterator

### onBrowserEvent

    public void onBrowserEvent(Event event)

  Method to process events generated from the browser.

  Specified by:
    `onBrowserEvent` in interface `EventListener`
  Overrides:
    `onBrowserEvent` in class `Widget`
  Parameters:
    `event` - the generated event

### remove

    public boolean remove(Widget widget)

  Remove the specified widget from the table.

  Specified by:
    `remove` in interface `HasWidgets`
  Specified by:
    `remove` in class `Panel`
  Parameters:
    `widget` - widget to remove
  Returns:
    was the widget removed from the table.

### removeTableListener

    public void removeTableListener(TableListener listener)

  Removes the specified table listener.

  Specified by:
    `removeTableListener` in interface `SourcesTableEvents`
  Parameters:
    `listener` - listener to remove

### setBorderWidth

    public void setBorderWidth(int width)

  Sets the width of the table's border. This border is displayed around all cells in the table.

  Parameters:
    `width` - the width of the border, in pixels

### setCellPadding

    public void setCellPadding(int padding)

  Sets the amount of padding to be added around all cells.

  Parameters:
    `padding` - the cell padding, in pixels

### setCellSpacing

    public void setCellSpacing(int spacing)

  Sets the amount of spacing to be added around all cells.

  Parameters:
    `spacing` - the cell spacing, in pixels

### setHTML

    public void setHTML(int row,
                        int column,
                        java.lang.String html)

  Sets the HTML contents of the specified cell.

  Parameters:
    `row` - the cell's row
    `column` - the cell's column
    `html` - the cell's HTML contents
  Throws:
    `java.lang.IndexOutOfBoundsException`

### setText

    public void setText(int row,
                        int column,
                        java.lang.String text)

  Sets the text within the specified cell.

  Parameters:
    `row` - the cell's row
    `column` - cell's column
    `text` - the cell's text contents
  Throws:
    `java.lang.IndexOutOfBoundsException`

### setWidget

    public void setWidget(int row,
                          int column,
                          Widget widget)

  Sets the widget within the specified cell.

  Inherited implementations may either throw IndexOutOfBounds exception if the cell does not exist, or allocate a new cell to store the content.

  FlexTable will automatically allocate the cell at the correct location and then set the widget. Grid will set the widget if and only if the cell is within the Grid's bounding box.

  Parameters:
    `widget` - The widget to be added
    `row` - the cell's row
    `column` - the cell's column
  Throws:
    `java.lang.IndexOutOfBoundsException`

### checkCellBounds

    protected void checkCellBounds(int row,
                                   int column)

  Bounds checks that the cell exists at the specified location.

  Parameters:
    `row` - cell's row
    `column` - cell's column
  Throws:
    `java.lang.IndexOutOfBoundsException`

### checkRowBounds

    protected void checkRowBounds(int row)

  Checks that the row is within the correct bounds.

  Parameters:
    `row` - row index to check
  Throws:
    `java.lang.IndexOutOfBoundsException`

### createCell

    protected Element createCell()

  Creates a new cell. Override this method if the cell should have initial contents.

  Returns:
    the newly created TD

### getBodyElement

    protected Element getBodyElement()

  Gets the table's TBODY element.

  Returns:
    the TBODY element

### getDOMCellCount

    protected int getDOMCellCount(Element tableBody,
                                  int row)

  Directly ask the underlying DOM what the cell count on the given row is.

  Parameters:
    `tableBody` - the element
    `row` - the row
  Returns:
    number of columns in the row

### getDOMCellCount

    protected int getDOMCellCount(int row)

  Directly ask the underlying DOM what the cell count on the given row is.

  Parameters:
    `row` - the row
  Returns:
    number of columns in the row

### getDOMRowCount

    protected int getDOMRowCount()

  Directly ask the underlying DOM what the row count is.

  Returns:
    Returns the number of rows in the table

### getDOMRowCount

    protected int getDOMRowCount(Element elem)

### getEventTargetCell

    protected Element getEventTargetCell(Event event)

  Determines the TD associated with the specified event.

  Parameters:
    `event` - the event to be queried
  Returns:
    the TD associated with the event, or `null` if none is found.

### insertCell

    protected void insertCell(int row,
                              int column)

  Inserts a new cell into the specified row.

  Parameters:
    `row` - the row into which the new cell will be inserted
    `column` - the column before which the cell will be inserted
  Throws:
    `java.lang.IndexOutOfBoundsException`

### insertCells

    protected void insertCells(int row,
                               int column,
                               int count)

  Inserts a number of cells before the specified cell.

  Parameters:
    `row` - the row into which the new cells will be inserted
    `column` - the column before which the new cells will be inserted
    `count` - number of cells to be inserted
  Throws:
    `java.lang.IndexOutOfBoundsException`

### insertRow

    protected int insertRow(int beforeRow)

  Inserts a new row into the table.

  Parameters:
    `beforeRow` - the index before which the new row will be inserted
  Returns:
    the index of the newly-created row
  Throws:
    `java.lang.IndexOutOfBoundsException`

### internalClearCell

    protected boolean internalClearCell(Element td,
                                        boolean clearInnerHTML)

  Does actual clearing, used by clearCell and cleanCell. All HTMLTable methods should use internalClearCell rather than clearCell, as clearCell may be overridden in subclasses to format an empty cell.

  Parameters:
    `td` - element to clear
    `clearInnerHTML` - should the cell's inner html be cleared?
  Returns:
    returns whether a widget was cleared

### prepareCell

    protected abstract void prepareCell(int row,
                                        int column)

  Subclasses must implement this method. It allows them to decide what to do just before a cell is accessed. If the cell already exists, this method must do nothing. Otherwise, a subclass must either ensure that the cell exists or throw an `IndexOutOfBoundsException`.

  Parameters:
    `row` - the cell's row
    `column` - the cell's column

### prepareColumn

    protected void prepareColumn(int column)

  Subclasses can implement this method. It allows them to decide what to do just before a column is accessed. For classes, such as `FlexTable`, that do not have a concept of a global column length can ignore this method.

  Parameters:
    `column` - the cell's column
  Throws:
    `java.lang.IndexOutOfBoundsException`

### prepareRow

    protected abstract void prepareRow(int row)

  Subclasses must implement this method. If the row already exists, this method must do nothing. Otherwise, a subclass must either ensure that the row exists or throw an `IndexOutOfBoundsException`.

  Parameters:
    `row` - the cell's row

### removeCell

    protected void removeCell(int row,
                              int column)

  Removes the specified cell from the table.

  Parameters:
    `row` - the row of the cell to remove
    `column` - the column of cell to remove
  Throws:
    `java.lang.IndexOutOfBoundsException`

### removeRow

    protected void removeRow(int row)

  Removes the specified row from the table.

  Parameters:
    `row` - the index of the row to be removed
  Throws:
    `java.lang.IndexOutOfBoundsException`

### setCellFormatter

    protected void setCellFormatter(HTMLTable.CellFormatter cellFormatter)

  Sets the table's CellFormatter.

  Parameters:
    `cellFormatter` - the table's cell formatter

### setColumnFormatter

    protected void setColumnFormatter(HTMLTable.ColumnFormatter formatter)

### setRowFormatter

    protected void setRowFormatter(HTMLTable.RowFormatter rowFormatter)

  Sets the table's RowFormatter.

  Parameters:
    `rowFormatter` - the table's row formatter