org.eclipse.nebula.widgets.nattable.painter.cell
Class AutomaticRowHeightTextPainter

java.lang.Object
  org.eclipse.nebula.widgets.nattable.painter.cell.AbstractCellPainter
      org.eclipse.nebula.widgets.nattable.painter.cell.CellPainterWrapper
          org.eclipse.nebula.widgets.nattable.painter.cell.BackgroundPainter
              org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter
                  org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter
                      org.eclipse.nebula.widgets.nattable.painter.cell.AutomaticRowHeightTextPainter

All Implemented Interfaces:

ICellPainter

public class AutomaticRowHeightTextPainter
extends TextPainter

Special TextPainter that will always calculate the row height of the cell dependent to the content shown in the cell. It uses word wrapping and calculation of the cell height to support showing long texts in a single cell. It will grow/shrink the row height on resizing so always the optimal height is used for the row the cell resides.

This TextPainter should preferably be used for tables that use percentage sizing so the calculated row heights for example will grow/shrink correctly when resizing the composite that contains the table.

It shouldn't be used for large tables that can be scrolled as the growing/shrinking on scrolling can cause some side effects, like jumping layouts on scrolling.

Author:

Dirk Fauth

See Also:

TextPainter, DataLayer.setColumnPercentageSizing(boolean)

Field Summary

Fields inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter

calculateByTextHeight, calculateByTextLength, DOT, EMPTY, LINE_SEPARATOR, NEW_LINE_REGEX, paintBg, paintFg, spacing, wrapText

Constructor Summary

AutomaticRowHeightTextPainter()

AutomaticRowHeightTextPainter(int spacing)

Method Summary

protected boolean

performRowResize(int contentHeight, org.eclipse.swt.graphics.Rectangle rectangle) Checks if a row resize needs to be triggered.

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.TextPainter

calculatePadding, getPreferredHeight, getPreferredWidth, paintCell, setNewMinLength

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.AbstractTextPainter

convertDataType, getLengthFromCache, getNumberOfNewLines, getTextToDisplay, isCalculateByTextHeight, isCalculateByTextLength, isTrimText, renderStrikethrough, renderUnderlined, setCalculateByTextHeight, setCalculateByTextLength, setStrikethrough, setTrimText, setUnderline, setupGCFromConfig

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.BackgroundPainter

getBackgroundColour

Methods inherited from class org.eclipse.nebula.widgets.nattable.painter.cell.CellPainterWrapper

getCellPainterAt, getWrappedPainter, getWrappedPainterBounds, setWrappedPainter

Methods inherited from class java.lang.Object

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

Constructor Detail

AutomaticRowHeightTextPainter

public AutomaticRowHeightTextPainter()

AutomaticRowHeightTextPainter

public AutomaticRowHeightTextPainter(int spacing)

Method Detail

performRowResize

protected boolean performRowResize(int contentHeight,
                                   org.eclipse.swt.graphics.Rectangle rectangle)

Description copied from class: TextPainter

Checks if a row resize needs to be triggered.

Overrides:

performRowResize in class TextPainter

Parameters:

contentHeight - The necessary height to show the content completely

rectangle - The available rectangle to render to

Returns:

true if a row resize needs to be performed, false if not