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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.timing.custom.edit.parts;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.StackLayout;
import org.eclipse.draw2d.XYLayout;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gmf.runtime.diagram.ui.figures.ResizableCompartmentFigure;
import org.eclipse.gmf.runtime.draw2d.ui.figures.WrappingLabel;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.uml.diagram.timing.custom.Messages;
import org.eclipse.papyrus.uml.diagram.timing.custom.layouts.FillLayout;
import org.eclipse.papyrus.uml.diagram.timing.edit.parts.FullLifelineStateDefinitionCompartmentEditPartCN;
public class CustomFullLifelineStateDefinitionCompartmentEditPartCN extends FullLifelineStateDefinitionCompartmentEditPartCN {
private WrappingLabel stateDefsAffordanceLabel;
public CustomFullLifelineStateDefinitionCompartmentEditPartCN(final View view) {
super(view);
}
@Override
public IFigure createFigure() {
final ResizableCompartmentFigure result = (ResizableCompartmentFigure)super.createFigure();
result.setBorder(null);
result.getScrollPane().getContents().setBorder(null);
result.setLayoutManager(new StackLayout());
// layout StateDefinitions so that they are regularly spaced and fill the whole height
result.getContentPane().setLayoutManager(new XYLayout() {
@Override
public void layout(final IFigure container) {
// reset the layout so that the BorderItemsAwareFreeFormLayer fills its parent FreeformViewport
if(!(container.getParent().getLayoutManager() instanceof FillLayout)) {
container.getParent().setLayoutManager(new FillLayout());
}
// The grand-parent is a FreeformViewport, which lets its child expand outside of its clientArea, and
// constantly resets the bounds (in org.eclipse.draw2d.FreeformViewport#readjustScrollBars)
// So, layout based on the grand-parent's clientArea.
final Rectangle clientArea = container.getParent().getClientArea();
final int nChildren = container.getChildren().size();
final int margin;
final int spacing;
if(nChildren == 1) {
margin = clientArea.height / 2;
spacing = 0;
} else {
margin = clientArea.height / (nChildren - 1) / 3;
spacing = (clientArea.height - 2 * margin) / (nChildren - 1);
}
for(int i = 0; i < nChildren; i++) {
final IFigure child = (IFigure)container.getChildren().get(i);
final Dimension ps = child.getPreferredSize();
final int w = ps.width;
// the height is twice as big as needed by default
final int h = ps.height / 2;
final int x = clientArea.x + clientArea.width / 2 - w / 2;
final int y = clientArea.y + margin + spacing * i - h / 2;
child.setBounds(new Rectangle(x, y, w, h));
}
}
@Override
protected Dimension calculatePreferredSize(final IFigure container, final int wHint, final int hHint) {
return null;
}
});
result.setTitleVisibility(false);
createStateDefsAffordanceLabel(result);
return result;
}
/**
* Hide the scrollbar
*
* @see http://wiki.eclipse.org/Papyrus_Developer_Guide/NoScrollbar
*/
@Override
protected void refreshVisuals() {
super.refreshVisuals();
((ResizableCompartmentFigure)getFigure()).getScrollPane().setScrollBarVisibility(org.eclipse.draw2d.ScrollPane.NEVER);
refreshBounds();
}
@Override
public boolean isSelectable() {
// No need to select the compartment.
// This saves one click when selecting something inside.
return false;
}
/**
* Display a Label when there are no StateDefinitions, so that the user knows that they must add at least a
* StateDefinition.
*/
private void createStateDefsAffordanceLabel(final IFigure parent) {
this.stateDefsAffordanceLabel = new WrappingLabel();
this.stateDefsAffordanceLabel.setTextWrap(true);
this.stateDefsAffordanceLabel.setAlignment(PositionConstants.CENTER);
this.stateDefsAffordanceLabel.setTextJustification(PositionConstants.CENTER);
this.stateDefsAffordanceLabel.setText(Messages.CustomFullLifelineStateDefinitionCompartmentEditPartCN_AddStateDefinitionsHere);
this.stateDefsAffordanceLabel.setForegroundColor(ColorConstants.gray);
parent.add(this.stateDefsAffordanceLabel);
this.stateDefsAffordanceLabel.setBounds(new Rectangle(parent.getBounds()));
this.stateDefsAffordanceLabel.setVisible(false);
}
@Override
protected void refreshChildren() {
super.refreshChildren();
this.stateDefsAffordanceLabel.setVisible(getChildren().size() == 0);
}
}
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