org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/ITmfTimeGraphDrawingHelper.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Geneviève Bastien - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets;
  14
  15 /**
  16  * This interface provides functions to convert a model element to a drawing
  17  * element and vice versa.
  18  *
  19  * Views who implement this interface allow access to some model-to-canvas and
  20  * vice-versa functions without having to expose their full functionnalities.
  21  *
  22  * @author gbastien
  23  * @since 2.1
  24  */
  25 public interface ITmfTimeGraphDrawingHelper {
  26
  27     /**
  28      * Return the x coordinate corresponding to a time
  29      *
  30      * @param time
  31      *            the time
  32      * @return the x coordinate corresponding to the time
  33      */
  34     int getXForTime(long time);
  35
  36     /**
  37      * Return the time corresponding to an x coordinate
  38      *
  39      * @param x
  40      *            the x coordinate
  41      * @return the time corresponding to the x coordinate
  42      */
  43     long getTimeAtX(int x);
  44 }