Package org.eclipse.nebula.widgets.nattable.group.performance.action

Class RowHeaderReorderDragMode

java.lang.Object

org.eclipse.nebula.widgets.nattable.viewport.action.AutoScrollDragMode

org.eclipse.nebula.widgets.nattable.reorder.action.RowReorderDragMode

org.eclipse.nebula.widgets.nattable.group.performance.action.RowHeaderReorderDragMode

All Implemented Interfaces:

IDragMode

public class RowHeaderReorderDragMode
extends RowReorderDragMode

Extends the regular row drag functionality to work with row groups. It does the following checks:

1. Checks that the destination is not part of a Unbreakable row group
2. Checks if the destination is between two adjoining row groups

Since:

1.6

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.nebula.widgets.nattable.reorder.action.RowReorderDragMode

RowReorderDragMode.RowReorderOverlayPainter

Nested classes/interfaces inherited from class org.eclipse.nebula.widgets.nattable.viewport.action.AutoScrollDragMode

AutoScrollDragMode.AutoScrollRunnable

Field Summary

Fields

Modifier and Type	Field	Description
protected int	dragFromGridColumnPosition

Fields inherited from class org.eclipse.nebula.widgets.nattable.reorder.action.RowReorderDragMode

currentEvent, dragFromGridRowPosition, initialEvent, natTable, targetOverlayPainter

Fields inherited from class org.eclipse.nebula.widgets.nattable.viewport.action.AutoScrollDragMode

horizontalBorderOffset, verticalBorderOffset

Constructor Summary

Constructors

Constructor	Description
RowHeaderReorderDragMode(RowGroupHeaderLayer rowGroupHeaderLayer)

Method Summary

Modifier and Type	Method	Description
protected CellEdgeEnum	getMoveDirection(int y)
protected ILayerCell	getRowCell(int y)
boolean	isValidTargetRowPosition(ILayer natLayer, int fromGridRowPosition, int toGridRowPosition)
protected boolean	isValidTargetRowPosition(ILayer natLayer, int fromGridRowPosition, int toGridRowPosition, int level, int fromPosition, int toPosition)	Test if the reorder is valid for the given level.
void	mouseDown(NatTable natTable, org.eclipse.swt.events.MouseEvent event)

Methods inherited from class org.eclipse.nebula.widgets.nattable.reorder.action.RowReorderDragMode

fireMoveEndCommand, fireMoveStartCommand, getDragFromGridRowPosition, getDragToGridRowPosition, mouseMove, mouseUp

Methods inherited from class org.eclipse.nebula.widgets.nattable.viewport.action.AutoScrollDragMode

performDragAction

Methods inherited from class java.lang.Object

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

Field Detail

dragFromGridColumnPosition

protected int dragFromGridColumnPosition

Constructor Detail

RowHeaderReorderDragMode

public RowHeaderReorderDragMode(RowGroupHeaderLayer rowGroupHeaderLayer)

Parameters:

rowGroupHeaderLayer - The RowGroupHeaderLayer to which this drag mode should be assigned to.

Method Detail

mouseDown

public void mouseDown(NatTable natTable,
                      org.eclipse.swt.events.MouseEvent event)

Specified by:

mouseDown in interface IDragMode

Overrides:

mouseDown in class RowReorderDragMode

isValidTargetRowPosition

public boolean isValidTargetRowPosition(ILayer natLayer,
                                        int fromGridRowPosition,
                                        int toGridRowPosition)

Overrides:

isValidTargetRowPosition in class RowReorderDragMode

Parameters:

natLayer - The layer the positions are related to

fromGridRowPosition - The row position of the row that is dragged

toGridRowPosition - The row position where the row is dropped

Returns:

true if the drop position is valid, false if not

isValidTargetRowPosition

protected boolean isValidTargetRowPosition(ILayer natLayer,
                                           int fromGridRowPosition,
                                           int toGridRowPosition,
                                           int level,
                                           int fromPosition,
                                           int toPosition)

Test if the reorder is valid for the given level.

Parameters:

natLayer - The layer on which the drag operation is triggered, typically the NatTable instance.

fromGridRowPosition - The from position related to the given natLayer.

toGridRowPosition - The to position related to the given natLayer.

level - The grouping level for which the check should be performed.

fromPosition - The from position related to the positionLayer of the RowGroupHeaderLayer.

toPosition - The to position related to the positionLayer of the RowGroupHeaderLayer.

Returns:

true if the reorder would be valid on the specified level, false if not.

getMoveDirection

protected CellEdgeEnum getMoveDirection(int y)

Overrides:

getMoveDirection in class RowReorderDragMode

Parameters:

y - The y coordinate of the drop location

Returns:

The direction whether the drop should be performed before the the cell at drop position or after

getRowCell

protected ILayerCell getRowCell(int y)

Overrides:

getRowCell in class RowReorderDragMode

Parameters:

y - The y coordinate of the drop location

Returns:

The ILayerCell at the drop location