org.uberfire.ext.wires.core.grids.client.util

Class CoordinateUtilities

java.lang.Object

org.uberfire.ext.wires.core.grids.client.util.CoordinateUtilities

public class CoordinateUtilities
extends Object

Utilities class

Constructor Summary

Constructors

Constructor and Description
CoordinateUtilities()

Method Summary

Modifier and Type	Method and Description
static com.ait.lienzo.client.core.types.Point2D	convertDOMToGridCoordinate(GridWidget view, com.ait.lienzo.client.core.types.Point2D point) Convert a DOM-relative coordinate to one within a GridWidget, taking the current transformation (translation and scale) into consideration.
static int	getRelativeXOfEvent(com.google.gwt.event.dom.client.DomEvent event)
static int	getRelativeYOfEvent(com.google.gwt.event.dom.client.DomEvent event)
static Integer	getUiColumnIndex(GridWidget gridWidget, double relativeX) Gets the column index corresponding to the provided Canvas x-coordinate relative to the grid.
static Integer	getUiHeaderRowIndex(GridWidget gridWidget, com.ait.lienzo.client.core.types.Point2D rp) Gets the header row index corresponding to the provided Canvas y-coordinate relative to the grid.
static Integer	getUiRowIndex(GridWidget gridWidget, double relativeY) Gets the row index corresponding to the provided Canvas y-coordinate relative to the grid.

Methods inherited from class java.lang.Object

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

Constructor Detail

CoordinateUtilities

public CoordinateUtilities()

Method Detail

convertDOMToGridCoordinate

public static com.ait.lienzo.client.core.types.Point2D convertDOMToGridCoordinate(GridWidget view,
                                                                                  com.ait.lienzo.client.core.types.Point2D point)

Convert a DOM-relative coordinate to one within a GridWidget, taking the current transformation (translation and scale) into consideration.

Parameters:

view - The GridWidget to which we need to find the relative coordinate.

point - The Canvas/DOM MouseEvent coordinate.

Returns:

A coordinate relative to the GridWidget (in un-transformed coordinate space).

getUiRowIndex

public static Integer getUiRowIndex(GridWidget gridWidget,
                                    double relativeY)

Gets the row index corresponding to the provided Canvas y-coordinate relative to the grid. Grid-relative coordinates can be obtained from INodeXYEvent using convertDOMToGridCoordinate(GridWidget, Point2D)

Parameters:

gridWidget - GridWidget to check.

relativeY - y-coordinate relative to the GridWidget.

Returns:

The row index or null if the coordinate did not map to a cell.

getUiColumnIndex

public static Integer getUiColumnIndex(GridWidget gridWidget,
                                       double relativeX)

Gets the column index corresponding to the provided Canvas x-coordinate relative to the grid. Grid-relative coordinates can be obtained from INodeXYEvent using convertDOMToGridCoordinate(GridWidget, Point2D)

Parameters:

gridWidget - GridWidget to check.

relativeX - x-coordinate relative to the GridWidget.

Returns:

The column index or null if the coordinate did not map to a cell.

getUiHeaderRowIndex

public static Integer getUiHeaderRowIndex(GridWidget gridWidget,
                                          com.ait.lienzo.client.core.types.Point2D rp)

Gets the header row index corresponding to the provided Canvas y-coordinate relative to the grid. Grid-relative coordinates can be obtained from INodeXYEvent using convertDOMToGridCoordinate(GridWidget, Point2D)

Parameters:

gridWidget - GridWidget to check.

rp - Canvas coordinate relative to the GridWidget.

Returns:

The header row index or null if the coordinate did not map to a header row.

getRelativeXOfEvent

public static int getRelativeXOfEvent(com.google.gwt.event.dom.client.DomEvent event)

getRelativeYOfEvent

public static int getRelativeYOfEvent(com.google.gwt.event.dom.client.DomEvent event)