/*******************************************************************************
* Copyright (c) 2004, 2006 Sybase, Inc. and others.
*
* 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
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.facesconfig.ui.preference;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.LineBorder;
import org.eclipse.draw2d.MarginBorder;
import org.eclipse.draw2d.MidpointLocator;
import org.eclipse.draw2d.PolylineConnection;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.geometry.PointList;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
/**
* @author Bob
*/
/*package*/ class LinkFigure extends PolylineConnection implements IBaseFigure {
private final static Color defaultLineColor = ColorConstants.black;
private final static int defaultLineWidth = 1;
private final static boolean defaultLabelVisible = false;
private final static Color defaultLabelForeground = ColorConstants.black;
private final static Color defaultLabelBackground = ColorConstants.white;
private final static Font defaultFont = JFaceResources.getFontRegistry().get(
JFaceResources.DEFAULT_FONT);
private LinkLabel label;
/**
* Default constructor
*/
public LinkFigure() {
super();
setLineWidth(defaultLineWidth);
setForegroundColor(defaultLineColor);
// BaseFigureDecorator decorator;
// decorator = new
// BaseFigureDecorator(GEMPlugin.getDefault().getGEMImage("delete.gif"),"target",PositionConstants.WEST);
// addDecorator(decorator);
// decorator = new
// BaseFigureDecorator(GEMPlugin.getDefault().getGEMImage("delete.gif"),"target",PositionConstants.EAST);
// addDecorator(decorator);
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#setToolTipText()
*/
public void setToolTipText(final String text) {
Label toolTip_ = null;
if (text != null && text.length() > 0) {
toolTip_ = new Label(text);
toolTip_.setBorder(new MarginBorder(3));
}
super.setToolTip(toolTip_);
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#getToolTipText()
*/
public String getToolTipText() {
if (getToolTip() != null)
{
return ((Label) getToolTip()).getText();
}
return null;
}
public void setHighlight(final boolean flag) {
if (flag) {
setForegroundColor(ColorConstants.titleBackground);
// setLineWidth(defaultLineWidth * 2);
} else {
setForegroundColor(defaultLineColor);
// setLineWidth(defaultLineWidth);
}
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#setText()
*/
public void setText(final String text) {
if (text != null && text.length() == 0) {
if (label != null) {
remove(label);
label = null;
}
} else {
getLabel().setText(text);
}
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#getText()
*/
public String getText() {
if (label == null)
{
return null;
}
return label.getText();
}
/*
* CR374981: Long activity labels do not get wrapped or truncated This
* method was added to the IBaseFigure interface to support direct edit of
* figure labels on the canvas.
*/
public Rectangle getTextBounds() {
return label.getTextBounds();
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#setIcon(org.eclipse.swt.graphics.Image)
*/
public void setIcon(final Image image) {
getLabel().setIcon(image);
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#getIcon()
*/
public Image getIcon() {
return getLabel().getIcon();
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#addDecorator(com.sybase.stf.gem.diagram.editor.figures.BaseFigureDecorator)
*/
public void addDecorator(final BaseFigureDecorator decorator) {
final int pos = decorator.getPosition();
if (pos == BaseFigureDecorator.DEFAULT_DECORATOR_POSITION
|| pos == PositionConstants.WEST
|| pos == PositionConstants.LEFT) {
setTargetDecoration(decorator);
} else if (pos == PositionConstants.EAST
|| pos == PositionConstants.RIGHT) {
setSourceDecoration(decorator);
}
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#removeDecorator()
*/
public void removeDecorator() {
removeDecorator(BaseFigureDecorator.DEFAULT_DECORATOR_POSITION);
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#removeDecorator(int)
*/
public void removeDecorator(final int position) {
if (position == BaseFigureDecorator.DEFAULT_DECORATOR_POSITION)
{
setTargetDecoration(null);
}
else
{
setSourceDecoration(null);
}
}
/*
* (non-Javadoc)
*
* @see com.sybase.stf.gem.diagram.editor.figures.IBaseFigure#getDecorators()
*/
public List getDecorators() {
final List list = new ArrayList(2);
Object d;
d = getSourceDecoration();
if (d != null)
{
list.add(d);
}
d = getTargetDecoration();
if (d != null)
{
list.add(d);
}
return list;
}
private LinkLabel getLabel() {
if (label == null) {
label = new LinkLabel();
add(label, new MidpointLocator(this, 0));
}
return label;
}
@Override
public void setFont(final Font f) {
getLabel().setFont(f);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.draw2d.Shape#setLineWidth(int)
*/
@Override
public void setLineWidth(final int w) {
getLabel().setBorderWidth(w);
super.setLineWidth(w);
}
@Override
public void setForegroundColor(final Color c) {
getLabel().setBorderColor(c);
super.setForegroundColor(c);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.draw2d.Polyline#setPoints(org.eclipse.draw2d.geometry.PointList)
*/
@Override
public void setPoints(final PointList points) {
super.setPoints(points);
if (label != null) {
int i = getPoints().size() / 2 - 1;
if (i < 0)
{
i = 0;
}
if (getLayoutManager() != null)
{
getLayoutManager().setConstraint(label,
new MidpointLocator(this, i));
}
}
}
@Override
public Rectangle getBounds() {
if (bounds == null) {
if (bounds == null) {
bounds = getPoints().getBounds().getExpanded(lineWidth / 2,
lineWidth / 2);
}
// CR382243: Clicking on the node icon selects the connection line
// rather than the node
// NOTE: expanding the bounds to include children (in this case,
// the Link labels) causes problems when the connection line becomes
// short (i.e., when the 2 anchor figures at each end of the
// connection are
// close together) because the bounds of this link figure will be
// greater
// than the actual length of the line. This causes the link figure
// to
// be hit-tested beyond its visual size.
if (getLabel().isVisible()) {
for (int i = 0; i < getChildren().size(); i++) {
final IFigure child = (IFigure) getChildren().get(i);
bounds.union(child.getBounds());
}
}
}
return bounds;
}
/*
* Helper class for line labels.
*/
private static class LinkLabel extends Label {
LinkLabel() {
setBorder(new LineBorder());
setOpaque(true);
setForegroundColor(defaultLabelForeground);
setBackgroundColor(defaultLabelBackground);
setFont(defaultFont);
final LineBorder border_ = new LineBorder(defaultLineWidth);
setBorder(border_);
border_.setColor(defaultLineColor);
setVisible(defaultLabelVisible);
}
void setBorderWidth(final int w) {
((LineBorder) getBorder()).setWidth(w);
}
void setBorderColor(final Color c) {
((LineBorder) getBorder()).setColor(c);
}
@Override
protected boolean useLocalCoordinates() {
return false;
}
}
}