Package org.eclipse.graphiti.ui.internal.services.impl

Class GefService

java.lang.Object

org.eclipse.graphiti.ui.internal.services.impl.GefService

All Implemented Interfaces:

IGefService

public class GefService
extends Object
implements IGefService

A collection of static helper methods regarding GEF.

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	PE

Constructor Summary

Constructors

Constructor	Description
GefService()

Method Summary

Modifier and Type	Method	Description
IDimension	calculateTextSize(String text, Font font)	Calculates and returns the size of the text ignoring any new line characters in the string.
IDimension	calculateTextSize(String text, Font font, boolean handleMultiline)	Calculates and returns the size of the text.
org.eclipse.draw2d.geometry.Point	calculateTranslation(org.eclipse.gef.EditPart source, org.eclipse.gef.EditPart target)	Returns the translation between the coordinate-systems of EditParts.
org.eclipse.gef.EditPart	findEditPartAt(org.eclipse.gef.EditPartViewer viewer, org.eclipse.draw2d.geometry.Point location, boolean includeConnections)
org.eclipse.draw2d.geometry.Point	getAbsolutePointOnConnection(Connection c, double distance)
org.eclipse.draw2d.geometry.Point	getChopboxLocationOnBox(org.eclipse.draw2d.geometry.Point reference, org.eclipse.draw2d.geometry.Rectangle box)	This method has to be kept in sync with ChopboxAnchorFixed.getLocation(Point).
org.eclipse.draw2d.geometry.Point	getConnectionPointAt(Connection c, double d)
List<org.eclipse.gef.EditPart>	getConnectionsContainedInEditPart(org.eclipse.gef.EditPart ep)	Computes EditParts of the connections and related ConnectionDecorators which live inside the containment hierarchy of the given edit part.
double	getDistance(org.eclipse.draw2d.geometry.Point[] points)
org.eclipse.draw2d.geometry.Point	getDistantPoint(int startX, int startY, int endX, int endY, double distance)
org.eclipse.draw2d.geometry.Point	getDistantPoint(org.eclipse.draw2d.geometry.Point start, org.eclipse.draw2d.geometry.Point end, double distance)
List<org.eclipse.gef.EditPart>	getEditPartChildren(org.eclipse.gef.EditPart editPart)	Provides the direct children of the edit part.
Object	getLayoutConstraint(org.eclipse.gef.EditPart editPart)	Returns the layout constraint for the given EditPart.
org.eclipse.draw2d.geometry.Point	getPointAt(int startX, int startY, int endX, int endY, double d)
org.eclipse.draw2d.geometry.Point	getPointAt(org.eclipse.draw2d.geometry.Point start, org.eclipse.draw2d.geometry.Point end, double d)
List<org.eclipse.gef.EditPart>	getSelectedEditParts(org.eclipse.gef.EditPartViewer editPartViewer)	Provides the selected edit parts of the viewer.
List<org.eclipse.gef.GraphicalEditPart>	getSourceConnections(org.eclipse.gef.GraphicalEditPart graphicalEditPart)	Provides the source connections of the graphical edit part.
List<org.eclipse.gef.GraphicalEditPart>	getTargetConnections(org.eclipse.gef.GraphicalEditPart graphicalEditPart)	Provides the target connections of the graphical edit part.
void	mirrorArray(org.eclipse.draw2d.geometry.Point[] draw2dPoints)
void	selectEditPart(org.eclipse.gef.EditPartViewer viewer, Object modelObject)	Selects the EditPart for the given model Object.

Methods inherited from class java.lang.Object

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

Field Details

PE

protected static final String PE

See Also:

• Constant Field Values

Constructor Details

GefService

public GefService()

Method Details

selectEditPart

public void selectEditPart(org.eclipse.gef.EditPartViewer viewer,
 Object modelObject)

Description copied from interface: IGefService

Selects the EditPart for the given model Object.

Specified by:

selectEditPart in interface IGefService

Parameters:

viewer - The viewer, which contains the EditParts.

modelObject - The model Object, which EditPart to select.

calculateTranslation

public org.eclipse.draw2d.geometry.Point calculateTranslation(org.eclipse.gef.EditPart source,
 org.eclipse.gef.EditPart target)

Description copied from interface: IGefService

Returns the translation between the coordinate-systems of EditParts. It will translate from the coordinate-system of the source EditPart to the coordinate-system of the target EditPart. Both EditParts must be an instance of GraphicalEditPart. Otherwise it throws an Exception.

Specified by:

calculateTranslation in interface IGefService

Parameters:

source - The EditPart with the source coordinate-system.

target - The EditPart with the target coordinate-system.

Returns:

Returns the translation between the coordinate-systems of EditParts.

getLayoutConstraint

public Object getLayoutConstraint(org.eclipse.gef.EditPart editPart)

Description copied from interface: IGefService

Returns the layout constraint for the given EditPart. It returns null, if the constraint can not be determined, for example because the child has no parent or the parent has no LayoutManager.

Specified by:

getLayoutConstraint in interface IGefService

Parameters:

editPart - The EditPart for which to return the layout constraint.

Returns:

Returns the layout constraint for the given EditPart.

findEditPartAt

public org.eclipse.gef.EditPart findEditPartAt(org.eclipse.gef.EditPartViewer viewer,
 org.eclipse.draw2d.geometry.Point location,
 boolean includeConnections)

Specified by:

findEditPartAt in interface IGefService

location - : the absolute location for the whole RootEditpart (if any, the scroll should be considered)

Returns:

getConnectionsContainedInEditPart

public List<org.eclipse.gef.EditPart> getConnectionsContainedInEditPart(org.eclipse.gef.EditPart ep)

Description copied from interface: IGefService

Computes EditParts of the connections and related ConnectionDecorators which live inside the containment hierarchy of the given edit part.

Specified by:

getConnectionsContainedInEditPart in interface IGefService

Parameters:

ep - the EditPart whose inner connection and ConnectionDecorators should be computed

getConnectionPointAt

public org.eclipse.draw2d.geometry.Point getConnectionPointAt(Connection c,
 double d)

Specified by:

getConnectionPointAt in interface IGefService

Returns:

getChopboxLocationOnBox

public org.eclipse.draw2d.geometry.Point getChopboxLocationOnBox(org.eclipse.draw2d.geometry.Point reference,
 org.eclipse.draw2d.geometry.Rectangle box)

Description copied from interface: IGefService

This method has to be kept in sync with ChopboxAnchorFixed.getLocation(Point).

Specified by:

getChopboxLocationOnBox in interface IGefService

getAbsolutePointOnConnection

public org.eclipse.draw2d.geometry.Point getAbsolutePointOnConnection(Connection c,
 double distance)

Specified by:

getAbsolutePointOnConnection in interface IGefService

Returns:

getDistantPoint

public org.eclipse.draw2d.geometry.Point getDistantPoint(org.eclipse.draw2d.geometry.Point start,
 org.eclipse.draw2d.geometry.Point end,
 double distance)

Specified by:

getDistantPoint in interface IGefService

getDistantPoint

public org.eclipse.draw2d.geometry.Point getDistantPoint(int startX,
 int startY,
 int endX,
 int endY,
 double distance)

Specified by:

getDistantPoint in interface IGefService

getPointAt

public org.eclipse.draw2d.geometry.Point getPointAt(int startX,
 int startY,
 int endX,
 int endY,
 double d)

Specified by:

getPointAt in interface IGefService

Returns:

getPointAt

public org.eclipse.draw2d.geometry.Point getPointAt(org.eclipse.draw2d.geometry.Point start,
 org.eclipse.draw2d.geometry.Point end,
 double d)

Specified by:

getPointAt in interface IGefService

getDistance

public double getDistance(org.eclipse.draw2d.geometry.Point[] points)

Specified by:

getDistance in interface IGefService

calculateTextSize

public IDimension calculateTextSize(String text,
 Font font)

Description copied from interface: IGefService

Calculates and returns the size of the text ignoring any new line characters in the string.

Specified by:

calculateTextSize in interface IGefService

Returns:

the size of the text

See Also:

• IGefService.calculateTextSize(String, Font, boolean)

calculateTextSize

public IDimension calculateTextSize(String text,
 Font font,
 boolean handleMultiline)

Description copied from interface: IGefService

Calculates and returns the size of the text.

Specified by:

calculateTextSize in interface IGefService

handleMultiline - Defines if line breaks in the string should be used in the calculation of the size or not. In case true, a new line character in the string will increase the size of the returned dimensions by one line, in case false a new line character will be ignored.

Returns:

the size of the text

mirrorArray

public void mirrorArray(org.eclipse.draw2d.geometry.Point[] draw2dPoints)

Specified by:

mirrorArray in interface IGefService

getEditPartChildren

public List<org.eclipse.gef.EditPart> getEditPartChildren(org.eclipse.gef.EditPart editPart)

Description copied from interface: IGefService

Provides the direct children of the edit part.

Specified by:

getEditPartChildren in interface IGefService

Returns:

the direct child edit parts

getSourceConnections

public List<org.eclipse.gef.GraphicalEditPart> getSourceConnections(org.eclipse.gef.GraphicalEditPart graphicalEditPart)

Description copied from interface: IGefService

Provides the source connections of the graphical edit part.

Specified by:

getSourceConnections in interface IGefService

Returns:

the source connections of the graphical edit part

getTargetConnections

public List<org.eclipse.gef.GraphicalEditPart> getTargetConnections(org.eclipse.gef.GraphicalEditPart graphicalEditPart)

Description copied from interface: IGefService

Provides the target connections of the graphical edit part.

Specified by:

getTargetConnections in interface IGefService

Returns:

the target connections of the graphical edit part

getSelectedEditParts

public List<org.eclipse.gef.EditPart> getSelectedEditParts(org.eclipse.gef.EditPartViewer editPartViewer)

Description copied from interface: IGefService

Provides the selected edit parts of the viewer.

Specified by:

getSelectedEditParts in interface IGefService

Returns:

the selected edit parts of the viewer