/*
* Copyright (c) 2006 Stiftung Deutsches Elektronen-Synchroton,
* Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
*
* THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
* WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
* IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
* CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
* NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
* DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
* OR MODIFICATIONS.
* THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
* USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
* PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
* AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
*/
package org.csstudio.sds.components.ui.internal.editparts;
import org.csstudio.sds.components.model.AbstractPolyModel;
import org.csstudio.sds.components.model.PolylineModel;
import org.csstudio.sds.components.ui.internal.figures.RefreshablePolylineFigure;
import org.csstudio.sds.ui.editparts.AbstractWidgetEditPart;
import org.csstudio.sds.ui.editparts.IWidgetPropertyChangeHandler;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.PointList;
import org.eclipse.gef.EditPart;
/**
* EditPart controller for the Polyline widget. The controller mediates between
* {@link PolylineModel} and {@link RefreshablePolylineFigure}.
*
* @author Sven Wende, Alexander Will
*
*/
public final class PolylineEditPart extends AbstractWidgetEditPart {
/**
* {@inheritDoc}
*/
@Override
protected IFigure doCreateFigure() {
RefreshablePolylineFigure polyline = new RefreshablePolylineFigure();
PolylineModel model = (PolylineModel) getWidgetModel();
polyline.setPoints(model.getPoints());
polyline.setFill(model.getFill());
polyline.setLineWidth(model.getLineWidth());
polyline.setLineStyle(model.getLineStyle());
return polyline;
}
/**
* {@inheritDoc}
*/
@Override
protected void registerPropertyChangeHandlers() {
// line width
IWidgetPropertyChangeHandler lineWidthHandler = new IWidgetPropertyChangeHandler() {
@Override
public boolean handleChange(final Object oldValue,
final Object newValue,
final IFigure refreshableFigure) {
RefreshablePolylineFigure polyline = (RefreshablePolylineFigure) refreshableFigure;
polyline.setLineWidth((Integer) newValue);
return true;
}
};
setPropertyChangeHandler(PolylineModel.PROP_LINE_WIDTH,
lineWidthHandler);
// line style
IWidgetPropertyChangeHandler lineStyleHandler = new IWidgetPropertyChangeHandler() {
@Override
public boolean handleChange(final Object oldValue,
final Object newValue,
final IFigure refreshableFigure) {
RefreshablePolylineFigure polyline = (RefreshablePolylineFigure) refreshableFigure;
polyline.setLineStyle((Integer) newValue);
return true;
}
};
setPropertyChangeHandler(PolylineModel.PROP_LINE_STYLE,
lineStyleHandler);
// fill
IWidgetPropertyChangeHandler fillHandler = new IWidgetPropertyChangeHandler() {
@Override
public boolean handleChange(final Object oldValue,
final Object newValue,
final IFigure refreshableFigure) {
RefreshablePolylineFigure polyline = (RefreshablePolylineFigure) refreshableFigure;
polyline.setFill((Double) newValue);
return true;
}
};
setPropertyChangeHandler(AbstractPolyModel.PROP_FILL, fillHandler);
// points
IWidgetPropertyChangeHandler pointsHandler = new IWidgetPropertyChangeHandler() {
@Override
public boolean handleChange(final Object oldValue,
final Object newValue,
final IFigure refreshableFigure) {
RefreshablePolylineFigure polyline = (RefreshablePolylineFigure) refreshableFigure;
PointList points = (PointList) newValue;
// deselect the widget (this refreshes the polypoint drag
// handles)
int selectionState = getSelected();
setSelected(EditPart.SELECTED_NONE);
polyline.setPoints(points);
doRefreshVisuals(polyline);
// restore the selection state
setSelected(selectionState);
return true;
}
};
setPropertyChangeHandler(AbstractPolyModel.PROP_POINTS, pointsHandler);
}
}