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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.figures;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.gmf.runtime.draw2d.ui.figures.FigureUtilities;
import org.eclipse.gmf.runtime.draw2d.ui.figures.WrappingLabel;
import org.eclipse.gmf.runtime.notation.GradientStyle;
import org.eclipse.gmf.tooling.runtime.draw2d.CenterLayout;
import org.eclipse.papyrus.uml.diagram.common.figure.node.IPapyrusUMLElementFigure;
import org.eclipse.papyrus.uml.diagram.common.figure.node.PapyrusNodeFigure;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Pattern;
import org.eclipse.swt.widgets.Display;
public class CompactStateFigure extends PapyrusNodeFigure implements IPapyrusUMLElementFigure {
public static final int PREFERRED_HEIGHT = 32;
private final WrappingLabel label;
private boolean infinite;
/**
* @param infinite
* Whether the state has an end cap (the last state doesn't end)
*/
public void setInfinite(final boolean infinite) {
this.infinite = infinite;
}
public boolean isInfinite() {
return this.infinite;
}
public CompactStateFigure() {
super();
setLayoutManager(new CenterLayout());
this.label = new WrappingLabel();
this.label.setAlignment(PositionConstants.CENTER);
add(this.label);
}
@Override
public void paintFigure(final Graphics g) {
// super.paintFigure(g);
g.pushState();
final int height = Math.min(PREFERRED_HEIGHT, this.bounds.height);
final int middleY = this.bounds.y + this.bounds.height / 2;
final int x = this.bounds.x;
final int w = this.bounds.width - 1;
final int y = middleY - height / 2;
final int h = height - 1;
g.setLineWidth(1);
final int cornerSize = Math.min(h / 3, w / 3);
final int[] polygon;
if(this.infinite) {
polygon = new int[]{ x, middleY, x + cornerSize, y, x + w + 1, y, x + w + 1, y + h, x + cornerSize, y + h };
} else {
polygon = new int[]{ x, middleY, x + cornerSize, y, x + w - cornerSize, y, x + w, middleY, x + w - cornerSize, y + h, x + cornerSize, y + h };
}
g.setAntialias(SWT.ON);
if(isUsingGradient()) {
applyTransparency(g);
final Pattern pattern;
// apparently, patterns are not scaled automatically, so we need to scale the pattern so that it fits the
// current zoom level
final double scale = g.getAbsoluteScale();
final int xScaled = (int)(this.bounds.x * scale);
final int yScaled = (int)(this.bounds.y * scale);
final int widthScaled = (int)(this.bounds.width * scale);
final int heightScaled = (int)(height * scale);
if(getGradientStyle() == GradientStyle.VERTICAL) {
pattern = new Pattern(Display.getCurrent(), xScaled, yScaled, xScaled, yScaled + heightScaled, FigureUtilities.integerToColor(Integer.valueOf(getGradientColor2())), FigureUtilities.integerToColor(Integer.valueOf(getGradientColor1())));
} else {
pattern = new Pattern(Display.getCurrent(), xScaled, yScaled, xScaled + widthScaled, this.bounds.y, FigureUtilities.integerToColor(Integer.valueOf(getGradientColor2())), FigureUtilities.integerToColor(Integer.valueOf(getGradientColor1())));
}
g.setBackgroundPattern(pattern);
g.fillPolygon(polygon);
g.drawPolygon(polygon);
pattern.dispose();
} else {
g.setBackgroundColor(getBackgroundColor());
g.setForegroundColor(getForegroundColor());
// FIXME: the figure is not filled because the default fill color is black
// g.fillPolygon(polygon);
g.drawPolygon(polygon);
}
g.popState();
// displayDebugFigure(g);
}
// private void displayDebugFigure(final Graphics g) {
// g.pushState();
// g.setForegroundColor(ColorConstants.red);
// for (int x = 0; x < this.bounds.width - 1; x++) {
// final int y = computeHalfHeightAtAbscissa(x, this.bounds.width, this.bounds.height, this.infinite);
// g.drawRectangle(this.bounds.x + x, this.bounds.y + this.bounds.height / 2 - y, 1, 1);
// g.drawRectangle(this.bounds.x + x, this.bounds.y + this.bounds.height / 2 + y - 1, 1, 1);
// }
// g.popState();
// }
/**
* Compute the half height of a CompactStateFigure with the given width and height, at the given abscissa.
* <p>
* This function is useful in order to place an OccurrenceSpecification along the border of a StateInvariant.
*
* @param x
* the x coordinate at which to compute the height
* @param figureWidth
* the width of the CompactStateFigure
* @param figureHeight
* the height of the CompactStateFigure
* @param infinite
* whether the figure ends with a cap (not infinite) or not (infinite)
* @return the half height at the given position
*/
public static int computeHalfHeightAtAbscissa(final int x, final int figureWidth, final int figureHeight, final boolean infinite) {
final int height = Math.min(PREFERRED_HEIGHT, figureHeight);
final int width = figureWidth;
final int halfHeight = figureHeight / 2;
final int cornerSize = Math.min(height / 3, width / 3);
final int resultY;
if(x < cornerSize) {
// on the left corner
final double slope = (height / 2.0) / cornerSize;
resultY = (int)(x * slope);
} else if(infinite) {
// on the straight border
resultY = halfHeight;
} else if(x < width - cornerSize) {
// on the straight border
resultY = halfHeight;
} else {
// on the right corner
final double slope = (double)halfHeight / cornerSize;
resultY = (int)(halfHeight - ((x - width + cornerSize) * slope));
}
return resultY;
}
public WrappingLabel getCompactStateInvariantLabel() {
return this.label;
}
@Override
public Dimension getPreferredSize(final int wHint, final int hHint) {
return new Dimension(-1, PREFERRED_HEIGHT);
}
@Override
protected void paintBorder(final Graphics graphics) {
// no border
}
public void setStereotypeDisplay(final String stereotypes, final Image image) {
// TODO Auto-generated method stub
}
}
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