bundles/org.eclipse.emf.emfstore.client.ui/src/org/eclipse/emf/emfstore/internal/client/ui/views/historybrowserview/graph/SWTPlotRenderer.java - emf-store/org.eclipse.emf.emfstore.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008-2011 Chair for Applied Software Engineering,
  * Technische Universitaet Muenchen.
  * 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:
  ******************************************************************************/
 /*******************************************************************************
  * Copyright 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
  * Copyright 2008, Shawn O. Pearce <spearce@spearce.org>
  * Copyright 2011, Mathias Kinzler <mathias.kinzler@sap.com>
  * Copyright 2011, Matthias Sohn <matthias.sohn@sap.com>*
  * Copyright 2012, Alexander Aumann <alexander.f.aumann@gmail.com>
  * All rights reserved. This program and the accompanying materials
  * are made available under 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.emf.emfstore.internal.client.ui.views.historybrowserview.graph;

 import java.util.LinkedHashMap;
 import java.util.Map;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.SWTException;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.RGB;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Event;

 /**
  * A renderer for IPlotCommits able to draw these commits into a table or tree cell.
  * Originally taken from org.eclipse.egit.ui.internal.history.
  */
 public class SWTPlotRenderer extends AbstractPlotRenderer {

 	// The colors following are used for labels in the EGit renderer and might prove useful in the future.

 	// private static final RGB OUTER_HEAD = new RGB(0, 128, 0);
 	//
 	// private static final RGB INNER_HEAD = new RGB(188, 220, 188);
 	//
 	// private static final RGB OUTER_TAG = new RGB(121, 120, 13);
 	//
 	// private static final RGB INNER_TAG = new RGB(249, 255, 199);
 	//
 	// private static final RGB OUTER_ANNOTATED = new RGB(104, 78, 0);
 	//
 	// private static final RGB INNER_ANNOTATED = new RGB(255, 239, 192);
 	//
 	// private static final RGB OUTER_REMOTE = new RGB(80, 80, 80);
 	//
 	// private static final RGB INNER_REMOTE = new RGB(225, 225, 225);
 	//
 	// private static final RGB OUTER_OTHER = new RGB(30, 30, 30);
 	//
 	// private static final RGB INNER_OTHER = new RGB(250, 250, 250);

 	private static final int MAX_LABEL_LENGTH = 15;

 	private final Color sysColorBlack;

 	private final Color sysColorGray;

 	private final Color sysColorWhite;

 	private final Color commitDotFill;

 	private final Color commitDotOutline;

 	private final Map<String, Point> labelCoordinates = new LinkedHashMap<String, Point>();

 	private int textHeight;

 	private boolean enableAntialias = true;

 	private GC g;

 	private int cellX;

 	private int cellY;

 	private Color cellFG;

 	private Color cellBG;

 	/**
 	 * Creates a new SWTPlotRenderer that can draw IPlotCommits for table/tree events.
 	 *
 	 * @param d The display for the renderer.
 	 */
 	public SWTPlotRenderer(final Display d) {
 		sysColorBlack = d.getSystemColor(SWT.COLOR_BLACK);
 		sysColorGray = d.getSystemColor(SWT.COLOR_GRAY);
 		sysColorWhite = d.getSystemColor(SWT.COLOR_WHITE);
 		commitDotFill = new Color(d, new RGB(220, 220, 220));
 		commitDotOutline = new Color(d, new RGB(110, 110, 110));
 	}

 	/**
 	 * Frees all resources reserved by the renderer.
 	 */
 	void dispose() {
 		commitDotFill.dispose();
 		commitDotOutline.dispose();
 	}

 	/**
 	 * Paints a IPlotCommit into the cell determined by the given event.
 	 *
 	 * @param event The event triggering the painting.
 	 * @param representer The commit to paint.
 	 */
 	public void paint(final Event event, IPlotCommit representer) {
 		g = event.gc;

 		if (enableAntialias) {
 			try {
 				g.setAntialias(SWT.ON);
 			} catch (final SWTException e) {
 				enableAntialias = false;
 			}
 		}

 		// this.headRef = actHeadRef;
 		cellX = event.x;
 		cellY = event.y;
 		cellFG = g.getForeground();
 		cellBG = g.getBackground();
 		if (textHeight == 0) {
 			textHeight = g.stringExtent("/").y; //$NON-NLS-1$
 		}

 		// final TableItem ti = (TableItem) event.item;
 		// IMockCommit commit = (IMockCommit) ti.getData();
 		// try {
 		// commit.parseBody();
 		// } catch (IOException e) {
 		// Activator.error("Error parsing body", e); //$NON-NLS-1$
 		// return;
 		// }
 		paintCommit(representer, event.height);
 	}

 	@Override
 	protected void drawLine(final Color color, final int x1, final int y1, final int x2, final int y2,
 		final int width) {
 		g.setForeground(color);
 		g.setLineWidth(width);
 		g.drawLine(cellX + x1, cellY + y1, cellX + x2, cellY + y2);
 	}

 	/**
 	 * Draws a dot with the given parameters.
 	 *
 	 * @param outline The color for the outline of the dot.
 	 * @param fill The color used to fill the dot.
 	 * @param x The left most coordinate of the dot.
 	 * @param y The top most coordinate of the dot.
 	 * @param w The width of the dot.
 	 * @param h The height of the dot.
 	 */
 	protected void drawDot(final Color outline, final Color fill, final int x, final int y, final int w, final int h) {
 		final int dotX = cellX + x + 2;
 		final int dotY = cellY + y + 1;
 		final int dotW = w - 2;
 		final int dotH = h - 2;
 		g.setBackground(fill);
 		g.fillOval(dotX, dotY, dotW, dotH);
 		g.setForeground(outline);
 		g.setLineWidth(2);
 		g.drawOval(dotX, dotY, dotW, dotH);
 	}

 	@Override
 	protected void drawCommitDot(final int x, final int y, final int w, final int h) {
 		drawDot(commitDotOutline, commitDotFill, x, y, w, h);
 	}

 	@Override
 	protected void drawBoundaryDot(final int x, final int y, final int w, final int h) {
 		drawDot(sysColorGray, sysColorWhite, x, y, w, h);
 	}

 	@Override
 	protected void drawText(final String msg, final int x, final int y) {
 		final Point textsz = g.textExtent(msg);
 		final int texty = (y * 2 - textsz.y) / 2;
 		g.setForeground(cellFG);
 		g.setBackground(cellBG);
 		g.drawString(msg, cellX + x, cellY + texty, true);
 	}

 	@Override
 	protected int drawLabel(int x, int y, IPlotCommit commit) {
 		String txt = commit.getBranch();
 		// String name = commit.getName();
 		// boolean tag = false;
 		// boolean branch = false;
 		// RGB labelOuter;
 		// RGB labelInner;
 		// if (name.startsWith(Constants.R_HEADS)) {
 		// branch = true;
 		// labelOuter = OUTER_HEAD;
 		// labelInner = INNER_HEAD;
 		// txt = name.substring(Constants.R_HEADS.length());
 		// } else if (name.startsWith(Constants.R_REMOTES)) {
 		// branch = true;
 		// labelOuter = OUTER_REMOTE;
 		// labelInner = INNER_REMOTE;
 		// txt = name.substring(Constants.R_REMOTES.length());
 		// } else if (name.startsWith(Constants.R_TAGS)) {
 		// tag = true;
 		// if (commit.getPeeledObjectId() != null) {
 		// labelOuter = OUTER_ANNOTATED;
 		// labelInner = INNER_ANNOTATED;
 		// } else {
 		// labelOuter = OUTER_TAG;
 		// labelInner = INNER_TAG;
 		// }
 		//
 		// txt = name.substring(Constants.R_TAGS.length());
 		// } else {
 		// labelOuter = OUTER_OTHER;
 		// labelInner = INNER_OTHER;
 		//
 		// if (name.startsWith(Constants.R_REFS))
 		// txt = name.substring(Constants.R_REFS.length());
 		// else
 		// txt = name; // HEAD and such
 		// }

 		int maxLength;
 		// if (tag)
 		// maxLength = Activator.getDefault().getPreferenceStore().getInt(UIPreferences.HISTORY_MAX_TAG_LENGTH);
 		// else if (branch)
 		// maxLength = Activator.getDefault().getPreferenceStore().getInt(UIPreferences.HISTORY_MAX_BRANCH_LENGTH);
 		// else
 		maxLength = MAX_LABEL_LENGTH;
 		if (txt.length() > maxLength) {
 			txt = txt.substring(0, maxLength) + "\u2026"; // ellipsis "..." (in UTF-8) //$NON-NLS-1$
 		}
 		// highlight checked out branch
 		// Font oldFont = g.getFont();
 		// boolean isHead = isHead(name);
 		// if (isHead)
 		// g.setFont(CommitGraphTable.highlightFont());

 		final Point textsz = g.stringExtent(txt);
 		final int arc = textsz.y / 2;
 		final int texty = (y * 2 - textsz.y) / 2;

 		// Draw backgrounds
 		g.setLineWidth(1);

 		g.setBackground(sysColorWhite);
 		// g.fillRoundRectangle(cellX + x + 1, cellY + texty, textsz.x + 6, textsz.y + 1, arc, arc);

 		g.setForeground(getLabelBorderColor(commit));
 		// g.fillRoundRectangle(cellX + x, cellY + texty - 1, textsz.x + 8, textsz.y, arc - 1, arc - 1);

 		g.setBackground(getLabelColor(commit));
 		g.fillRoundRectangle(cellX + x + 1, cellY + texty, textsz.x + 6, textsz.y - 1, arc, arc);
 		// g.fillRoundRectangle(cellX + x + 2, cellY + texty + 1, textsz.x + 4, textsz.y - 4, arc - 1, arc - 1);

 		g.drawRoundRectangle(cellX + x, cellY + texty, textsz.x + 7, textsz.y - 1, arc, arc);
 		g.setForeground(sysColorBlack);

 		// Draw text
 		g.drawString(txt, cellX + x + 4, cellY + texty, true);

 		// if (isHead)
 		// g.setFont(oldFont);

 		labelCoordinates.put(String.valueOf(commit.getId()), new Point(x, x + textsz.x));
 		return 10 + textsz.x;
 	}

 	private Color getLabelBorderColor(IPlotCommit commit) {
 		// if (commit.isLocalHistoryOnly()) {
 		// assert commit.getLane() == null : "Local history commits do not have a lane.";
 		// return LOCAL_HISTORY_BORDER_COLOR;
 		// }
 		// assert commit.getLane() != null : "Only local history commits do not have a lane.";
 		// return commit.getLane().getSaturatedColor();
 		return commit.getColor();
 	}

 	private Color getLabelColor(IPlotCommit commit) {
 		// if (commit.isLocalHistoryOnly()) {
 		// assert commit.getLane() == null : "Local history commits do not have a lane.";
 		// return LOCAL_HISTORY_INNER_COLOR;
 		// }
 		//
 		// assert commit.getLane() != null : "Only local history commits do not have a lane.";
 		// return commit.getLane().getLightColor();
 		return commit.getLightColor();

 	}

 	// private boolean isHead(String name) {
 	// boolean isHead = false;
 	// if (headRef != null) {
 	// String headRefName = headRef.getLeaf().getName();
 	// if (name.equals(headRefName))
 	// isHead = true;
 	// }
 	// return isHead;
 	// }
 	@Override
 	protected Color laneColor(final PlotLane myLane, boolean fullSaturation) {
 		Color color;
 		if (myLane == null) {
 			if (fullSaturation) {
 				color = sysColorBlack;
 			} else {
 				color = sysColorGray;
 			}
 		} else {
 			if (fullSaturation) {
 				color = myLane.getSaturatedColor();
 			} else {
 				color = myLane.getLightColor();
 			}
 		}
 		if (color == null) {
 			assert false;
 			color = sysColorGray;
 		}
 		return color;
 	}

 	// /**
 	// * Obtain the horizontal span of {@link Ref} label in pixels
 	// *
 	// * For example, let's assume the SWTCommit has two {@link Ref}s (see {@link SWTCommit#getRef(int)}, which are
 	// * rendered as two labels. The
 	// * first label may span from 15 to 54 pixels in x direction, while the
 	// * second one may span from 58 to 76 pixels.
 	// *
 	// * This can be used to determine if the mouse is positioned over a label.
 	// *
 	// * @param ref
 	// * @return a Point where x and y designate the start and end x position of
 	// * the label
 	// */
 	// public Point getRefHSpan(Ref ref) {
 	// return labelCoordinates.get(ref.getName());
 	// }

 	/**
 	 * @return text height in pixel
 	 */
 	public int getTextHeight() {
 		return textHeight;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2008-2011 Chair for Applied Software Engineering,
	* Technische Universitaet Muenchen.
	* 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:
	******************************************************************************/
	/*******************************************************************************
	* Copyright 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
	* Copyright 2008, Shawn O. Pearce <spearce@spearce.org>
	* Copyright 2011, Mathias Kinzler <mathias.kinzler@sap.com>
	* Copyright 2011, Matthias Sohn <matthias.sohn@sap.com>*
	* Copyright 2012, Alexander Aumann <alexander.f.aumann@gmail.com>
	* All rights reserved. This program and the accompanying materials
	* are made available under 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.emf.emfstore.internal.client.ui.views.historybrowserview.graph;

	import java.util.LinkedHashMap;
	import java.util.Map;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.SWTException;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.GC;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.graphics.RGB;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Event;

	/**
	* A renderer for IPlotCommits able to draw these commits into a table or tree cell.
	* Originally taken from org.eclipse.egit.ui.internal.history.
	*/
	public class SWTPlotRenderer extends AbstractPlotRenderer {

	// The colors following are used for labels in the EGit renderer and might prove useful in the future.

	// private static final RGB OUTER_HEAD = new RGB(0, 128, 0);
	//
	// private static final RGB INNER_HEAD = new RGB(188, 220, 188);
	//
	// private static final RGB OUTER_TAG = new RGB(121, 120, 13);
	//
	// private static final RGB INNER_TAG = new RGB(249, 255, 199);
	//
	// private static final RGB OUTER_ANNOTATED = new RGB(104, 78, 0);
	//
	// private static final RGB INNER_ANNOTATED = new RGB(255, 239, 192);
	//
	// private static final RGB OUTER_REMOTE = new RGB(80, 80, 80);
	//
	// private static final RGB INNER_REMOTE = new RGB(225, 225, 225);
	//
	// private static final RGB OUTER_OTHER = new RGB(30, 30, 30);
	//
	// private static final RGB INNER_OTHER = new RGB(250, 250, 250);

	private static final int MAX_LABEL_LENGTH = 15;

	private final Color sysColorBlack;

	private final Color sysColorGray;

	private final Color sysColorWhite;

	private final Color commitDotFill;

	private final Color commitDotOutline;

	private final Map<String, Point> labelCoordinates = new LinkedHashMap<String, Point>();

	private int textHeight;

	private boolean enableAntialias = true;

	private GC g;

	private int cellX;

	private int cellY;

	private Color cellFG;

	private Color cellBG;

	/**
	* Creates a new SWTPlotRenderer that can draw IPlotCommits for table/tree events.
	*
	* @param d The display for the renderer.
	*/
	public SWTPlotRenderer(final Display d) {
	sysColorBlack = d.getSystemColor(SWT.COLOR_BLACK);
	sysColorGray = d.getSystemColor(SWT.COLOR_GRAY);
	sysColorWhite = d.getSystemColor(SWT.COLOR_WHITE);
	commitDotFill = new Color(d, new RGB(220, 220, 220));
	commitDotOutline = new Color(d, new RGB(110, 110, 110));
	}

	/**
	* Frees all resources reserved by the renderer.
	*/
	void dispose() {
	commitDotFill.dispose();
	commitDotOutline.dispose();
	}

	/**
	* Paints a IPlotCommit into the cell determined by the given event.
	*
	* @param event The event triggering the painting.
	* @param representer The commit to paint.
	*/
	public void paint(final Event event, IPlotCommit representer) {
	g = event.gc;

	if (enableAntialias) {
	try {
	g.setAntialias(SWT.ON);
	} catch (final SWTException e) {
	enableAntialias = false;
	}
	}

	// this.headRef = actHeadRef;
	cellX = event.x;
	cellY = event.y;
	cellFG = g.getForeground();
	cellBG = g.getBackground();
	if (textHeight == 0) {
	textHeight = g.stringExtent("/").y; //$NON-NLS-1$
	}

	// final TableItem ti = (TableItem) event.item;
	// IMockCommit commit = (IMockCommit) ti.getData();
	// try {
	// commit.parseBody();
	// } catch (IOException e) {
	// Activator.error("Error parsing body", e); //$NON-NLS-1$
	// return;
	// }
	paintCommit(representer, event.height);
	}

	@Override
	protected void drawLine(final Color color, final int x1, final int y1, final int x2, final int y2,
	final int width) {
	g.setForeground(color);
	g.setLineWidth(width);
	g.drawLine(cellX + x1, cellY + y1, cellX + x2, cellY + y2);
	}

	/**
	* Draws a dot with the given parameters.
	*
	* @param outline The color for the outline of the dot.
	* @param fill The color used to fill the dot.
	* @param x The left most coordinate of the dot.
	* @param y The top most coordinate of the dot.
	* @param w The width of the dot.
	* @param h The height of the dot.
	*/
	protected void drawDot(final Color outline, final Color fill, final int x, final int y, final int w, final int h) {
	final int dotX = cellX + x + 2;
	final int dotY = cellY + y + 1;
	final int dotW = w - 2;
	final int dotH = h - 2;
	g.setBackground(fill);
	g.fillOval(dotX, dotY, dotW, dotH);
	g.setForeground(outline);
	g.setLineWidth(2);
	g.drawOval(dotX, dotY, dotW, dotH);
	}

	@Override
	protected void drawCommitDot(final int x, final int y, final int w, final int h) {
	drawDot(commitDotOutline, commitDotFill, x, y, w, h);
	}

	@Override
	protected void drawBoundaryDot(final int x, final int y, final int w, final int h) {
	drawDot(sysColorGray, sysColorWhite, x, y, w, h);
	}

	@Override
	protected void drawText(final String msg, final int x, final int y) {
	final Point textsz = g.textExtent(msg);
	final int texty = (y * 2 - textsz.y) / 2;
	g.setForeground(cellFG);
	g.setBackground(cellBG);
	g.drawString(msg, cellX + x, cellY + texty, true);
	}

	@Override
	protected int drawLabel(int x, int y, IPlotCommit commit) {
	String txt = commit.getBranch();
	// String name = commit.getName();
	// boolean tag = false;
	// boolean branch = false;
	// RGB labelOuter;
	// RGB labelInner;
	// if (name.startsWith(Constants.R_HEADS)) {
	// branch = true;
	// labelOuter = OUTER_HEAD;
	// labelInner = INNER_HEAD;
	// txt = name.substring(Constants.R_HEADS.length());
	// } else if (name.startsWith(Constants.R_REMOTES)) {
	// branch = true;
	// labelOuter = OUTER_REMOTE;
	// labelInner = INNER_REMOTE;
	// txt = name.substring(Constants.R_REMOTES.length());
	// } else if (name.startsWith(Constants.R_TAGS)) {
	// tag = true;
	// if (commit.getPeeledObjectId() != null) {
	// labelOuter = OUTER_ANNOTATED;
	// labelInner = INNER_ANNOTATED;
	// } else {
	// labelOuter = OUTER_TAG;
	// labelInner = INNER_TAG;
	// }
	//
	// txt = name.substring(Constants.R_TAGS.length());
	// } else {
	// labelOuter = OUTER_OTHER;
	// labelInner = INNER_OTHER;
	//
	// if (name.startsWith(Constants.R_REFS))
	// txt = name.substring(Constants.R_REFS.length());
	// else
	// txt = name; // HEAD and such
	// }

	int maxLength;
	// if (tag)
	// maxLength = Activator.getDefault().getPreferenceStore().getInt(UIPreferences.HISTORY_MAX_TAG_LENGTH);
	// else if (branch)
	// maxLength = Activator.getDefault().getPreferenceStore().getInt(UIPreferences.HISTORY_MAX_BRANCH_LENGTH);
	// else
	maxLength = MAX_LABEL_LENGTH;
	if (txt.length() > maxLength) {
	txt = txt.substring(0, maxLength) + "\u2026"; // ellipsis "..." (in UTF-8) //$NON-NLS-1$
	}
	// highlight checked out branch
	// Font oldFont = g.getFont();
	// boolean isHead = isHead(name);
	// if (isHead)
	// g.setFont(CommitGraphTable.highlightFont());

	final Point textsz = g.stringExtent(txt);
	final int arc = textsz.y / 2;
	final int texty = (y * 2 - textsz.y) / 2;

	// Draw backgrounds
	g.setLineWidth(1);

	g.setBackground(sysColorWhite);
	// g.fillRoundRectangle(cellX + x + 1, cellY + texty, textsz.x + 6, textsz.y + 1, arc, arc);

	g.setForeground(getLabelBorderColor(commit));
	// g.fillRoundRectangle(cellX + x, cellY + texty - 1, textsz.x + 8, textsz.y, arc - 1, arc - 1);

	g.setBackground(getLabelColor(commit));
	g.fillRoundRectangle(cellX + x + 1, cellY + texty, textsz.x + 6, textsz.y - 1, arc, arc);
	// g.fillRoundRectangle(cellX + x + 2, cellY + texty + 1, textsz.x + 4, textsz.y - 4, arc - 1, arc - 1);

	g.drawRoundRectangle(cellX + x, cellY + texty, textsz.x + 7, textsz.y - 1, arc, arc);
	g.setForeground(sysColorBlack);

	// Draw text
	g.drawString(txt, cellX + x + 4, cellY + texty, true);

	// if (isHead)
	// g.setFont(oldFont);

	labelCoordinates.put(String.valueOf(commit.getId()), new Point(x, x + textsz.x));
	return 10 + textsz.x;
	}

	private Color getLabelBorderColor(IPlotCommit commit) {
	// if (commit.isLocalHistoryOnly()) {
	// assert commit.getLane() == null : "Local history commits do not have a lane.";
	// return LOCAL_HISTORY_BORDER_COLOR;
	// }
	// assert commit.getLane() != null : "Only local history commits do not have a lane.";
	// return commit.getLane().getSaturatedColor();
	return commit.getColor();
	}

	private Color getLabelColor(IPlotCommit commit) {
	// if (commit.isLocalHistoryOnly()) {
	// assert commit.getLane() == null : "Local history commits do not have a lane.";
	// return LOCAL_HISTORY_INNER_COLOR;
	// }
	//
	// assert commit.getLane() != null : "Only local history commits do not have a lane.";
	// return commit.getLane().getLightColor();
	return commit.getLightColor();

	}

	// private boolean isHead(String name) {
	// boolean isHead = false;
	// if (headRef != null) {
	// String headRefName = headRef.getLeaf().getName();
	// if (name.equals(headRefName))
	// isHead = true;
	// }
	// return isHead;
	// }
	@Override
	protected Color laneColor(final PlotLane myLane, boolean fullSaturation) {
	Color color;
	if (myLane == null) {
	if (fullSaturation) {
	color = sysColorBlack;
	} else {
	color = sysColorGray;
	}
	} else {
	if (fullSaturation) {
	color = myLane.getSaturatedColor();
	} else {
	color = myLane.getLightColor();
	}
	}
	if (color == null) {
	assert false;
	color = sysColorGray;
	}
	return color;
	}

	// /**
	// * Obtain the horizontal span of {@link Ref} label in pixels
	// *
	// * For example, let's assume the SWTCommit has two {@link Ref}s (see {@link SWTCommit#getRef(int)}, which are
	// * rendered as two labels. The
	// * first label may span from 15 to 54 pixels in x direction, while the
	// * second one may span from 58 to 76 pixels.
	// *
	// * This can be used to determine if the mouse is positioned over a label.
	// *
	// * @param ref
	// * @return a Point where x and y designate the start and end x position of
	// * the label
	// */
	// public Point getRefHSpan(Ref ref) {
	// return labelCoordinates.get(ref.getName());
	// }

	/**
	* @return text height in pixel
	*/
	public int getTextHeight() {
	return textHeight;
	}
	}