Home » Eclipse Projects » GEF » Paintorder of editparts?
| Paintorder of editparts? [message #172614] |
Sun, 20 March 2005 11:23  |
Eclipse User |
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Originally posted by: max.larsson.abz-informatik.de
Hello,
i've a wired problem, which poped up suddenly.
I ahve a root editpart, which loads a jpeg image
as a background and adds a border with 20 pixels.
My problem is now that child editparts with postion
in the jpeg image area aren't shown. But if
they are located in border i can see them.
Anyone an ides what that could be, i would gues
it has to do something with the paint order of
editparts, bit i could find anything about how
to influence it. help neede.
regards
Max
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| Re: Paintorder of editparts? [message #172850 is a reply to message #172689] |
Mon, 21 March 2005 15:42  |
| Eclipse User |
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Originally posted by: max.larsson.abz-informatik.de
Randy Hudson wrote:
>>i've a wired problem, which poped up suddenly.
>>I ahve a root editpart, which loads a jpeg image
>>as a background and adds a border with 20 pixels.
>>
>>My problem is now that child editparts with postion
>>in the jpeg image area aren't shown. But if
>>they are located in border i can see them.
>>
>
>
> This sounds pretty strange. Children should not appear on top of borders,
> and your image should be behind the children. Are you overriding
> paintFigure to paint the background image? It's hard to diagnose the
> problem without code or more information. Do you have just one level of
> container? (diagram + children)?
I will try to explain as such as possible. First of all i am instanting
my editor in the folloowing way:
But i don't thing that has to do soething with it.
My Model is like this:
public class Edge {
// Helper object for change notification. This will not be persisted.
transient private PropertyChangeSupport propertyChangeSupport;
final private Edges parent;
private int x;
private int y;
Edge( final Edges eParent,final int iX,final int iY ) {
parent = eParent;
x = iX;
y = iY;
}
public Edges getEdges() {
return parent;
}
public int getX() {
return x;
}
public void setX( int iX ) {
final int old = x;
x = iX;
firePropertyChange( "coordinates",old,x );
}
public int getY() {
return y;
}
public void setY( int iY ) {
final int old = y;
y = iY;
firePropertyChange( "coordinates",old,y );
}
// methods for bean bahviour about changes
private PropertyChangeSupport getPropertyChangeSupport() {
if (propertyChangeSupport == null) {
propertyChangeSupport = new PropertyChangeSupport( this );
}
return propertyChangeSupport;
}
public void addPropertyChangeListener( PropertyChangeListener
listener) {
getPropertyChangeSupport().addPropertyChangeListener( listener );
}
public void removePropertyChangeListener( PropertyChangeListener
listener ) {
getPropertyChangeSupport().removePropertyChangeListener(
listener );
}
protected void firePropertyChange( String propertyName,int
oldValue,int newValue ) {
getPropertyChangeSupport().firePropertyChange(
propertyName,oldValue,newValue );
}
}
public class Edges implements List {
final private FacilityDOMObject parent;
final private List list = new ArrayList( 4 );
Edges( final FacilityDOMObject fbParent ) {
parent = fbParent;
add( new Edge( this,10,10 ) );
add( new Edge( this,90,10 ) );
add( new Edge( this,90,90 ) );
add( new Edge( this,10,90 ) );
}
public FacilityDOMObject getFacilityDOMObject() {
return parent;
}
private double calcDistance( final Edge start,final Edge end ) {
return Math.sqrt( Math.pow( start.getX() - end.getX(),2 ) + Math.pow(
start.getY() - end.getY(),2 ) );
}
public boolean add( final Object obj ) {
if( ! ( obj instanceof Edge ) )
throw new IllegalArgumentException( "Edges only contains edge
classes!" );
// search the position within the edges
if( list.size() > 2 ) {
final Edge nw = (Edge)obj;
final Edge[] nearest = new Edge[] { (Edge)list.get( 0
),(Edge)list.get( 1 ) };
final double[] distance = new double[] { calcDistance(
nw,(Edge)list.get( 0 ) ),calcDistance( nw,(Edge)list.get( 1 ) ) };
for( int loop = 2;loop < list.size();loop++ ) {
final Edge edge = (Edge)list.get( loop );
final double dist = calcDistance( nw,edge );
if( distance[0] > distance[1] ) {
if( dist < distance[0] ) {
distance[0] = dist;
nearest[0] = edge;
}
}
else {
if( dist <= distance[1] ) {
distance[1] = dist;
nearest[1] = edge;
}
}
}
final int min = Math.min( list.indexOf( nearest[0] ),list.indexOf(
nearest[1] ) );
if( min == 0 )
list.add( Math.max( list.indexOf( nearest[0] ),list.indexOf(
nearest[1] ) ) + 1,obj );
else
list.add( min + 1,obj );
}
else
list.add( obj );
if( list.contains( obj ) ) {
parent.firePropertyChange( "newedge",null,obj );
return true;
}
return false;
}
public void add( final int index,final Object element ) {
list.add( index,element );
}
public boolean addAll( final int index,final Collection c ) {
return list.addAll( index,c );
}
public boolean addAll( final Collection c ) {
return list.addAll( c );
}
public void clear() {
list.clear();
}
public boolean contains( final Object o ) {
return list.contains( o );
}
public boolean containsAll( final Collection c ) {
return list.containsAll( c );
}
public boolean equals( final Object obj ) {
return list.equals( obj );
}
public Object get( final int index ) {
return list.get( index );
}
public int hashCode() {
return list.hashCode();
}
public int indexOf( final Object o ) {
return list.indexOf( o );
}
public boolean isEmpty() {
return list.isEmpty();
}
public Iterator iterator() {
return list.iterator();
}
public int lastIndexOf( final Object o ) {
return list.lastIndexOf( o );
}
public ListIterator listIterator() {
return list.listIterator();
}
public ListIterator listIterator( final int index ) {
return list.listIterator( index );
}
public Object remove( final int index ) {
return list.remove( index );
}
public boolean remove( final Object obj ) {
if( ! ( obj instanceof Edge ) )
throw new IllegalArgumentException( "Edges only contains edge
classes!" );
if( list.remove( obj ) ) {
parent.firePropertyChange( "rmeoveedge",obj,null );
return true;
}
return false;
}
public boolean removeAll( final Collection c ) {
return list.removeAll( c );
}
public boolean retainAll( final Collection c ) {
return list.retainAll( c );
}
public Object set( final int index,final Object element ) {
return list.set( index,element );
}
public int size() {
return list.size();
}
public List subList( final int fromIndex,final int toIndex ) {
return list.subList( fromIndex,toIndex );
}
public Object[] toArray() {
return list.toArray();
}
public Object[] toArray( final Object[] a ) {
return list.toArray( a );
}
public String toString() {
return "Edges: " + list.toString();
}
}
abstract public class FacilityDOMObject {
// Helper object for change notification. This will not be persisted.
transient private PropertyChangeSupport propertyChangeSupport;
final private Edges edges;
private FacilityDOMGroup parent;
private String name;
private boolean useparents = true;
private File file = null;
private Image image = null;
protected FacilityDOMObject( final String sName ) {
name = sName;
edges = new Edges( this );
}
public void dispose() {
if( parent != null )
parent.remove( this );
if( image != null )
image.dispose();
}
protected void finalize() throws Throwable {
parent = null;
file = null;
image = null;
}
protected void setParent( final FacilityDOMGroup parentGroup ) throws
IllegalArgumentException {
if( parentGroup != null )
parentGroup.acceptFacilityDOMObject( this );
parent = parentGroup;
if( parent == null )
useparents = false; // TODO: maybe throw indication that connection
will be lost?
}
abstract public void acceptVisitor( final FacilitDOMVisitor visitor );
final public void setName( final String sNewName ) throws
IllegalArgumentException {
if( parent != null )
parent.acceptNameForFacilityDOMObject( this,sNewName );
name = sNewName;
}
final public String getName() {
return name;
}
final public void useVisualtionFromParent( final boolean bUseIt ) {
// only use from parent parent is available
useparents = bUseIt && parent != null;
// if parent usage earse local information
if( bUseIt )
setImage( null );
}
final public boolean usesVisualationFromParent() {
return useparents;
}
final public void setImage( final File fImage ) {
final Image old = image;
// dispose old image
if( image != null )
image.dispose();
if( fImage != null ) {
// load new image
final Image iImage = new Image(
Display.getCurrent(),fImage.getAbsolutePath() );
// redirect to use local image
useVisualtionFromParent( false );
file = fImage;
image = iImage;
}
else {
file = null;
image = null;
}
firePropertyChange( "image",old,image );
}
final public Image getImage() {
if( useparents && parent != null )
return parent.getImage();
return image;
}
final public File getImageFile() {
if( useparents && parent != null )
return parent.getImageFile();
return file;
}
public List getEdges() {
return edges;
}
public void addEdge( final int iX,final int iY ) {
edges.add( new Edge( edges,iX,iY ) );
}
public boolean removeEdge( final Edge edge ) {
return edges.remove( edge );
}
public String toString() {
return name;
}
// methods for bean bahviour about changes
private PropertyChangeSupport getPropertyChangeSupport() {
if (propertyChangeSupport == null) {
propertyChangeSupport = new PropertyChangeSupport( this );
}
return propertyChangeSupport;
}
public void addPropertyChangeListener( PropertyChangeListener
listener) {
getPropertyChangeSupport().addPropertyChangeListener( listener );
}
public void removePropertyChangeListener( PropertyChangeListener
listener ) {
getPropertyChangeSupport().removePropertyChangeListener(
listener );
}
protected void firePropertyChange( String propertyName,Object
oldValue,Object newValue) {
getPropertyChangeSupport().firePropertyChange(
propertyName,oldValue,newValue );
}
protected void firePropertyChange( String propertyName,int
oldValue,int newValue ) {
getPropertyChangeSupport().firePropertyChange(
propertyName,oldValue,newValue );
}
}
My EditPartFactory:
public class EditPartFacilityBOSDOMFactory implements EditPartFactory {
public EditPart createEditPart( final EditPart context,final Object
model ) {
if( model instanceof Edge )
return new EdgeEditPart( context,(Edge)model );
else if( model instanceof Edges )
return new EdgesEditPart( context,(Edges)model );
else if( model instanceof FacilityDOMObject )
return new FacilityDOMObjectEditPart( (FacilityDOMObject)model );
throw new RuntimeException( "Unknow model part " ); }
}
My EditParts:
public class EdgeEditPart extends AbstractGraphicalEditPart implements
PropertyChangeListener {
EdgeEditPart( final EditPart parent,final Edge edge ) {
setParent( parent );
setModel( edge );
}
Edge getCastedModel() {
return (Edge)getModel();
}
public void activate() {
super.activate();
getCastedModel().addPropertyChangeListener( this );
}
public void deactivate() {
super.deactivate();
getCastedModel().removePropertyChangeListener( this );
}
protected IFigure createFigure() {
final Figure figure = new Figure();
figure.setLayoutManager( new XYLayout() );
figure.add( new RectangleFigure(),new Rectangle( 0,0,5,5 ) );
return figure;
}
protected void refreshVisuals() {
final Rectangle rect = new Rectangle(
getCastedModel().getX(),getCastedModel().getY(),-1,-1 );
((GraphicalEditPart)getParent()).setLayoutConstraint(
this,getFigure(),rect );
}
public void propertyChange( final PropertyChangeEvent event ) {
refreshVisuals();
}
protected void createEditPolicies() {
// enables the deletion of edge parts
installEditPolicy( EditPolicy.COMPONENT_ROLE,new ComponentEditPolicy() {
protected Command createDeleteCommand( GroupRequest deleteRequest ) {
return new Command() {
public void execute() {
getCastedModel().getEdges().remove( getModel() );
}
};
}
} );
}
}
public class EdgesEditPart extends AbstractGraphicalEditPart {
EdgesEditPart( final EditPart parent,final Edges edge ) {
setParent( parent );
setModel( edge );
}
Edges getCastedModel() {
return (Edges)getModel();
}
protected IFigure createFigure() {
final Polyline figure = new Polyline();
figure.setLayoutManager( new XYLayout() );
final Iterator points = getCastedModel().iterator();
if( points.hasNext() ) {
final Edge first = (Edge)points.next();
figure.addPoint( new Point( first.getX(),first.getY() ) );
while( points.hasNext() ) {
final Edge edge = (Edge)points.next();
figure.addPoint( new Point( edge.getX(),edge.getY() ) );
}
figure.addPoint( new Point( first.getX(),first.getY() ) );
}
return figure;
}
protected List getModelChildren() {
return Collections.unmodifiableList( getCastedModel() );
}
protected void refreshVisuals() {
((GraphicalEditPart)getParent()).setLayoutConstraint(
this,getFigure(),new Rectangle(
20,20,getFigure().getBounds().width,getFigure().getBounds(). height ) );
}
protected void createEditPolicies() {
// remove visual feedback for root part
installEditPolicy( EditPolicy.SELECTION_FEEDBACK_ROLE,null );
}
}
public class FacilityDOMObjectEditPart extends AbstractGraphicalEditPart
implements PropertyChangeListener {
FacilityDOMObjectEditPart( final FacilityDOMObject fbObj ) {
setModel( fbObj );
}
FacilityDOMObject getCastedModel() {
return (FacilityDOMObject)getModel();
}
public void activate() {
super.activate();
getCastedModel().addPropertyChangeListener( this );
}
public void deactivate() {
super.deactivate();
getCastedModel().removePropertyChangeListener( this );
}
protected IFigure createFigure() {
// use draw2d to create figute
final Figure figure = new Figure();
figure.setOpaque( true );
figure.setBackgroundColor( new Color(
Display.getCurrent(),0xC0,0xC0,0xC0 ) );
figure.setLayoutManager( new XYLayout() );
if( getCastedModel().getImage() != null ) {
final Figure imgfig = new ImageFigure(
getCastedModel().getImage() );
imgfig.setOpaque( false );
figure.add( imgfig,new Rectangle( 20,20,-1,-1 ) );
}
figure.add( new Label( getCastedModel().getName() ),new
Rectangle( 10,10,-1,-1 ) );
return figure;
}
protected List getModelChildren() {
final List childs = new ArrayList( 1 );
childs.add( getCastedModel().getEdges() );
return Collections.unmodifiableList( childs );
}
public void propertyChange( final PropertyChangeEvent event ) {
refreshChildren();
}
protected void createEditPolicies() {
// disallow the deletion of the root
installEditPolicy( EditPolicy.COMPONENT_ROLE,new
RootComponentEditPolicy() );
// remove visual feedback for root part
installEditPolicy( EditPolicy.SELECTION_FEEDBACK_ROLE,null );
XYLayoutEditPolicy policy = new XYLayoutEditPolicy() {
protected Command createAddCommand( EditPart child,Object constraint ) {
System.err.println( "get unsuported create add command! "
+child.getModel().getClass() );
return null;
}
protected Command createChangeConstraintCommand( final EditPart
child,final Object constraint ) {
if( child.getModel() instanceof Edge ) {
return new Command() {
public void execute() {
final Rectangle newRect = (Rectangle)constraint;
final Edge edge = (Edge)child.getModel(); edge.setX( newRect.x );
edge.setY( newRect.y );
}
};
}
// unsupported change request
System.err.println( "get unsupported change command! " +
child.getModel().getClass() );
return null;
}
protected Command getCreateCommand( final CreateRequest request ) {
return new Command() {
public void execute() {
getCastedModel().addEdge(
request.getLocation().x,request.getLocation().y );
}
};
}
protected Command getDeleteDependantCommand( Request request ) {
System.err.println( "get unsupported delete command! " +
getTargetEditPart( request ).getModel().getClass() );
return null;
}
};
policy.setXyLayout( (XYLayout)getFigure().getLayoutManager() );
installEditPolicy( EditPolicy.LAYOUT_ROLE,policy );
}
}
I found out if i make soemthing like an ImageEditPart and return Image
as child of FacilityDOMObjectEditPart it works. If you need further
information, don't hestiate to ask.
HTH
regards
Max
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| Re: Paintorder of editparts? [message #173203 is a reply to message #172850] |
Wed, 23 March 2005 00:21 |
| Eclipse User |
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Wow. I hope this is not production-level code. You don't actually expect
us to read and make sense of all that you've posted, do you?
I took a quick look and here are a few things that caught my eye:
1) You're setting XYLayout on a Polyline and then adding other figures to
that Polyline. Polyline is not meant to be used this way. Look at its
Javadoc.
2) In your post you said you're using a border, but I didn't see one being
used anywhere. You're just placing children figures at desired locations,
but not actually using a Border.
"Max Larsson" <max.larsson@abz-informatik.de> wrote in message
news:d1ngav$fk6$1@news.eclipse.org...
> Randy Hudson wrote:
> >>i've a wired problem, which poped up suddenly.
> >>I ahve a root editpart, which loads a jpeg image
> >>as a background and adds a border with 20 pixels.
> >>
> >>My problem is now that child editparts with postion
> >>in the jpeg image area aren't shown. But if
> >>they are located in border i can see them.
> >>
> >
> >
> > This sounds pretty strange. Children should not appear on top of
borders,
> > and your image should be behind the children. Are you overriding
> > paintFigure to paint the background image? It's hard to diagnose the
> > problem without code or more information. Do you have just one level of
> > container? (diagram + children)?
>
> I will try to explain as such as possible. First of all i am instanting
> my editor in the folloowing way:
>
> But i don't thing that has to do soething with it.
>
> My Model is like this:
>
> public class Edge {
> // Helper object for change notification. This will not be persisted.
>
> transient private PropertyChangeSupport propertyChangeSupport;
>
> final private Edges parent;
> private int x;
> private int y;
>
> Edge( final Edges eParent,final int iX,final int iY ) {
> parent = eParent;
> x = iX;
> y = iY;
> }
>
> public Edges getEdges() {
> return parent;
> }
>
> public int getX() {
> return x;
> }
>
> public void setX( int iX ) {
> final int old = x;
> x = iX;
> firePropertyChange( "coordinates",old,x );
> }
>
> public int getY() {
> return y;
> }
>
> public void setY( int iY ) {
> final int old = y;
> y = iY;
> firePropertyChange( "coordinates",old,y );
> }
>
> // methods for bean bahviour about changes
>
> private PropertyChangeSupport getPropertyChangeSupport() {
> if (propertyChangeSupport == null) {
> propertyChangeSupport = new PropertyChangeSupport( this );
> }
> return propertyChangeSupport;
> }
>
> public void addPropertyChangeListener( PropertyChangeListener
> listener) {
> getPropertyChangeSupport().addPropertyChangeListener( listener );
> }
>
> public void removePropertyChangeListener( PropertyChangeListener
> listener ) {
> getPropertyChangeSupport().removePropertyChangeListener(
> listener );
> }
>
> protected void firePropertyChange( String propertyName,int
> oldValue,int newValue ) {
> getPropertyChangeSupport().firePropertyChange(
> propertyName,oldValue,newValue );
> }
> }
>
>
> public class Edges implements List {
> final private FacilityDOMObject parent;
>
> final private List list = new ArrayList( 4 );
>
> Edges( final FacilityDOMObject fbParent ) {
> parent = fbParent;
> add( new Edge( this,10,10 ) );
> add( new Edge( this,90,10 ) );
> add( new Edge( this,90,90 ) );
> add( new Edge( this,10,90 ) );
> }
>
> public FacilityDOMObject getFacilityDOMObject() {
> return parent;
> }
>
> private double calcDistance( final Edge start,final Edge end ) {
> return Math.sqrt( Math.pow( start.getX() - end.getX(),2 ) + Math.pow(
> start.getY() - end.getY(),2 ) );
> }
>
> public boolean add( final Object obj ) {
> if( ! ( obj instanceof Edge ) )
> throw new IllegalArgumentException( "Edges only contains edge
> classes!" );
> // search the position within the edges
> if( list.size() > 2 ) {
> final Edge nw = (Edge)obj;
> final Edge[] nearest = new Edge[] { (Edge)list.get( 0
> ),(Edge)list.get( 1 ) };
> final double[] distance = new double[] { calcDistance(
> nw,(Edge)list.get( 0 ) ),calcDistance( nw,(Edge)list.get( 1 ) ) };
> for( int loop = 2;loop < list.size();loop++ ) {
> final Edge edge = (Edge)list.get( loop );
> final double dist = calcDistance( nw,edge );
> if( distance[0] > distance[1] ) {
> if( dist < distance[0] ) {
> distance[0] = dist;
> nearest[0] = edge;
> }
> }
> else {
> if( dist <= distance[1] ) {
> distance[1] = dist;
> nearest[1] = edge;
> }
> }
> }
> final int min = Math.min( list.indexOf( nearest[0] ),list.indexOf(
> nearest[1] ) );
> if( min == 0 )
> list.add( Math.max( list.indexOf( nearest[0] ),list.indexOf(
> nearest[1] ) ) + 1,obj );
> else
> list.add( min + 1,obj );
> }
> else
> list.add( obj );
>
> if( list.contains( obj ) ) {
> parent.firePropertyChange( "newedge",null,obj );
> return true;
> }
> return false;
> }
>
> public void add( final int index,final Object element ) {
> list.add( index,element );
> }
>
> public boolean addAll( final int index,final Collection c ) {
> return list.addAll( index,c );
> }
>
> public boolean addAll( final Collection c ) {
> return list.addAll( c );
> }
>
> public void clear() {
> list.clear();
> }
>
> public boolean contains( final Object o ) {
> return list.contains( o );
> }
>
> public boolean containsAll( final Collection c ) {
> return list.containsAll( c );
> }
>
> public boolean equals( final Object obj ) {
> return list.equals( obj );
> }
>
> public Object get( final int index ) {
> return list.get( index );
> }
>
> public int hashCode() {
> return list.hashCode();
> }
>
> public int indexOf( final Object o ) {
> return list.indexOf( o );
> }
>
> public boolean isEmpty() {
> return list.isEmpty();
> }
>
> public Iterator iterator() {
> return list.iterator();
> }
>
> public int lastIndexOf( final Object o ) {
> return list.lastIndexOf( o );
> }
>
> public ListIterator listIterator() {
> return list.listIterator();
> }
>
> public ListIterator listIterator( final int index ) {
> return list.listIterator( index );
> }
>
> public Object remove( final int index ) {
> return list.remove( index );
> }
>
> public boolean remove( final Object obj ) {
> if( ! ( obj instanceof Edge ) )
> throw new IllegalArgumentException( "Edges only contains edge
> classes!" );
>
> if( list.remove( obj ) ) {
> parent.firePropertyChange( "rmeoveedge",obj,null );
> return true;
> }
> return false;
> }
>
> public boolean removeAll( final Collection c ) {
> return list.removeAll( c );
> }
>
> public boolean retainAll( final Collection c ) {
> return list.retainAll( c );
> }
>
> public Object set( final int index,final Object element ) {
> return list.set( index,element );
> }
>
> public int size() {
> return list.size();
> }
>
> public List subList( final int fromIndex,final int toIndex ) {
> return list.subList( fromIndex,toIndex );
> }
>
> public Object[] toArray() {
> return list.toArray();
> }
>
> public Object[] toArray( final Object[] a ) {
> return list.toArray( a );
> }
>
> public String toString() {
> return "Edges: " + list.toString();
> }
> }
>
>
> abstract public class FacilityDOMObject {
> // Helper object for change notification. This will not be persisted.
> transient private PropertyChangeSupport propertyChangeSupport;
>
> final private Edges edges;
>
> private FacilityDOMGroup parent;
> private String name;
>
> private boolean useparents = true;
> private File file = null;
> private Image image = null;
>
> protected FacilityDOMObject( final String sName ) {
> name = sName;
> edges = new Edges( this );
> }
>
> public void dispose() {
> if( parent != null )
> parent.remove( this );
> if( image != null )
> image.dispose();
> }
>
> protected void finalize() throws Throwable {
> parent = null;
> file = null;
> image = null;
> }
>
> protected void setParent( final FacilityDOMGroup parentGroup ) throws
> IllegalArgumentException {
> if( parentGroup != null )
> parentGroup.acceptFacilityDOMObject( this );
> parent = parentGroup;
> if( parent == null )
> useparents = false; // TODO: maybe throw indication that connection
> will be lost?
> }
>
> abstract public void acceptVisitor( final FacilitDOMVisitor visitor );
>
> final public void setName( final String sNewName ) throws
> IllegalArgumentException {
> if( parent != null )
> parent.acceptNameForFacilityDOMObject( this,sNewName );
> name = sNewName;
> }
>
> final public String getName() {
> return name;
> }
>
> final public void useVisualtionFromParent( final boolean bUseIt ) {
> // only use from parent parent is available
> useparents = bUseIt && parent != null;
> // if parent usage earse local information
> if( bUseIt )
> setImage( null );
> }
>
> final public boolean usesVisualationFromParent() {
> return useparents;
> }
>
> final public void setImage( final File fImage ) {
> final Image old = image;
> // dispose old image
> if( image != null )
> image.dispose();
> if( fImage != null ) {
> // load new image
> final Image iImage = new Image(
> Display.getCurrent(),fImage.getAbsolutePath() );
> // redirect to use local image
> useVisualtionFromParent( false );
> file = fImage;
> image = iImage;
> }
> else {
> file = null;
> image = null;
> }
> firePropertyChange( "image",old,image );
> }
>
> final public Image getImage() {
> if( useparents && parent != null )
> return parent.getImage();
> return image;
> }
>
> final public File getImageFile() {
> if( useparents && parent != null )
> return parent.getImageFile();
> return file;
> }
>
> public List getEdges() {
> return edges;
> }
>
> public void addEdge( final int iX,final int iY ) {
> edges.add( new Edge( edges,iX,iY ) );
> }
>
> public boolean removeEdge( final Edge edge ) {
> return edges.remove( edge );
> }
>
> public String toString() {
> return name;
> }
>
> // methods for bean bahviour about changes
> private PropertyChangeSupport getPropertyChangeSupport() {
> if (propertyChangeSupport == null) {
> propertyChangeSupport = new PropertyChangeSupport( this );
> }
> return propertyChangeSupport;
> }
>
> public void addPropertyChangeListener( PropertyChangeListener
> listener) {
> getPropertyChangeSupport().addPropertyChangeListener( listener );
> }
>
> public void removePropertyChangeListener( PropertyChangeListener
> listener ) {
> getPropertyChangeSupport().removePropertyChangeListener(
> listener );
> }
>
> protected void firePropertyChange( String propertyName,Object
> oldValue,Object newValue) {
> getPropertyChangeSupport().firePropertyChange(
> propertyName,oldValue,newValue );
> }
>
> protected void firePropertyChange( String propertyName,int
> oldValue,int newValue ) {
> getPropertyChangeSupport().firePropertyChange(
> propertyName,oldValue,newValue );
> }
> }
>
>
>
>
>
> My EditPartFactory:
>
> public class EditPartFacilityBOSDOMFactory implements EditPartFactory {
>
> public EditPart createEditPart( final EditPart context,final Object
> model ) {
> if( model instanceof Edge )
> return new EdgeEditPart( context,(Edge)model );
> else if( model instanceof Edges )
> return new EdgesEditPart( context,(Edges)model );
> else if( model instanceof FacilityDOMObject )
> return new FacilityDOMObjectEditPart( (FacilityDOMObject)model );
>
> throw new RuntimeException( "Unknow model part " ); }
> }
>
>
>
> My EditParts:
>
> public class EdgeEditPart extends AbstractGraphicalEditPart implements
> PropertyChangeListener {
>
> EdgeEditPart( final EditPart parent,final Edge edge ) {
> setParent( parent );
> setModel( edge );
> }
>
> Edge getCastedModel() {
> return (Edge)getModel();
> }
>
> public void activate() {
> super.activate();
> getCastedModel().addPropertyChangeListener( this );
> }
>
> public void deactivate() {
> super.deactivate();
> getCastedModel().removePropertyChangeListener( this );
> }
>
> protected IFigure createFigure() {
> final Figure figure = new Figure();
> figure.setLayoutManager( new XYLayout() );
> figure.add( new RectangleFigure(),new Rectangle( 0,0,5,5 ) );
> return figure;
> }
>
> protected void refreshVisuals() {
> final Rectangle rect = new Rectangle(
> getCastedModel().getX(),getCastedModel().getY(),-1,-1 );
> ((GraphicalEditPart)getParent()).setLayoutConstraint(
> this,getFigure(),rect );
> }
>
> public void propertyChange( final PropertyChangeEvent event ) {
> refreshVisuals();
> }
>
> protected void createEditPolicies() {
> // enables the deletion of edge parts
> installEditPolicy( EditPolicy.COMPONENT_ROLE,new ComponentEditPolicy() {
> protected Command createDeleteCommand( GroupRequest deleteRequest ) {
> return new Command() {
> public void execute() {
> getCastedModel().getEdges().remove( getModel() );
> }
> };
> }
> } );
> }
> }
>
>
> public class EdgesEditPart extends AbstractGraphicalEditPart {
> EdgesEditPart( final EditPart parent,final Edges edge ) {
> setParent( parent );
> setModel( edge );
> }
>
> Edges getCastedModel() {
> return (Edges)getModel();
> }
>
> protected IFigure createFigure() {
> final Polyline figure = new Polyline();
> figure.setLayoutManager( new XYLayout() );
> final Iterator points = getCastedModel().iterator();
> if( points.hasNext() ) {
> final Edge first = (Edge)points.next();
> figure.addPoint( new Point( first.getX(),first.getY() ) );
> while( points.hasNext() ) {
> final Edge edge = (Edge)points.next();
> figure.addPoint( new Point( edge.getX(),edge.getY() ) );
> }
> figure.addPoint( new Point( first.getX(),first.getY() ) );
> }
> return figure;
> }
>
> protected List getModelChildren() {
> return Collections.unmodifiableList( getCastedModel() );
> }
>
> protected void refreshVisuals() {
> ((GraphicalEditPart)getParent()).setLayoutConstraint(
> this,getFigure(),new Rectangle(
> 20,20,getFigure().getBounds().width,getFigure().getBounds(). height ) );
> }
>
> protected void createEditPolicies() {
> // remove visual feedback for root part
> installEditPolicy( EditPolicy.SELECTION_FEEDBACK_ROLE,null );
> }
> }
>
> public class FacilityDOMObjectEditPart extends AbstractGraphicalEditPart
> implements PropertyChangeListener {
> FacilityDOMObjectEditPart( final FacilityDOMObject fbObj ) {
> setModel( fbObj );
> }
>
> FacilityDOMObject getCastedModel() {
> return (FacilityDOMObject)getModel();
> }
>
> public void activate() {
> super.activate();
> getCastedModel().addPropertyChangeListener( this );
> }
>
> public void deactivate() {
> super.deactivate();
> getCastedModel().removePropertyChangeListener( this );
> }
>
> protected IFigure createFigure() {
> // use draw2d to create figute
> final Figure figure = new Figure();
> figure.setOpaque( true );
> figure.setBackgroundColor( new Color(
> Display.getCurrent(),0xC0,0xC0,0xC0 ) );
> figure.setLayoutManager( new XYLayout() );
> if( getCastedModel().getImage() != null ) {
> final Figure imgfig = new ImageFigure(
> getCastedModel().getImage() );
> imgfig.setOpaque( false );
> figure.add( imgfig,new Rectangle( 20,20,-1,-1 ) );
> }
> figure.add( new Label( getCastedModel().getName() ),new
> Rectangle( 10,10,-1,-1 ) );
> return figure;
> }
>
> protected List getModelChildren() {
> final List childs = new ArrayList( 1 );
> childs.add( getCastedModel().getEdges() );
> return Collections.unmodifiableList( childs );
> }
>
> public void propertyChange( final PropertyChangeEvent event ) {
> refreshChildren();
> }
>
> protected void createEditPolicies() {
> // disallow the deletion of the root
> installEditPolicy( EditPolicy.COMPONENT_ROLE,new
> RootComponentEditPolicy() );
> // remove visual feedback for root part
> installEditPolicy( EditPolicy.SELECTION_FEEDBACK_ROLE,null );
>
>
> XYLayoutEditPolicy policy = new XYLayoutEditPolicy() {
> protected Command createAddCommand( EditPart child,Object constraint ) {
> System.err.println( "get unsuported create add command! "
> +child.getModel().getClass() );
>
> return null;
> }
>
> protected Command createChangeConstraintCommand( final EditPart
> child,final Object constraint ) {
> if( child.getModel() instanceof Edge ) {
> return new Command() {
> public void execute() {
> final Rectangle newRect = (Rectangle)constraint;
> final Edge edge = (Edge)child.getModel(); edge.setX( newRect.x );
> edge.setY( newRect.y );
> }
> };
> }
>
> // unsupported change request
> System.err.println( "get unsupported change command! " +
> child.getModel().getClass() );
> return null;
> }
>
> protected Command getCreateCommand( final CreateRequest request ) {
> return new Command() {
> public void execute() {
> getCastedModel().addEdge(
> request.getLocation().x,request.getLocation().y );
> }
> };
> }
>
> protected Command getDeleteDependantCommand( Request request ) {
> System.err.println( "get unsupported delete command! " +
> getTargetEditPart( request ).getModel().getClass() );
> return null;
> }
> };
> policy.setXyLayout( (XYLayout)getFigure().getLayoutManager() );
> installEditPolicy( EditPolicy.LAYOUT_ROLE,policy );
> }
> }
>
>
>
> I found out if i make soemthing like an ImageEditPart and return Image
> as child of FacilityDOMObjectEditPart it works. If you need further
> information, don't hestiate to ask.
>
> HTH
>
> regards
>
> Max
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| Re: Paintorder of editparts? [message #173418 is a reply to message #173203] |
Thu, 24 March 2005 03:33 |
| Eclipse User |
|
|
|
Originally posted by: max.larsson.abz-informatik.de
Pratik Shah wrote:
> Wow. I hope this is not production-level code. You don't actually expect
> us to read and make sense of all that you've posted, do you?
Nope, but i came to the conclusion, that that is the minmal part, where
everything is covered.
> I took a quick look and here are a few things that caught my eye:
> 1) You're setting XYLayout on a Polyline and then adding other figures to
> that Polyline. Polyline is not meant to be used this way. Look at its
> Javadoc.
I will check it out.
> 2) In your post you said you're using a border, but I didn't see one being
> used anywhere. You're just placing children figures at desired locations,
> but not actually using a Border.
Well the Edge Model are children figures of the Edges (the s is
impoprtant) model and the Editpart of the edges are using the polyine to
draw a lines between the edgees (# of edge model).
Actual what i want to to is make a polyline shape, wehre each edge can
be moved removed. And what you see was my solution. But any hints on how
to do it right are welcome
regards
Max
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