org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/uml2sd/core/Stop.java

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2013 IBM Corporation, Ericsson
   3  * All rights reserved.   This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM - Initial API and implementation
  10  *     Bernd Hufmann - Updated for TMF
  11  **********************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.uml2sd.core;
  14
  15 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IGC;
  16 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.preferences.ISDPreferences;
  17 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.preferences.SDViewPref;
  18
  19 /**
  20  * <p>
  21  * It is the UML2 stop graphical representation in the sequence diagram viewer.
  22  * This draw a cross on the lifeline. The stop y coordinate depend on the event occurrence when it appears.
  23  * A stop is never drawn it is assigned to a lifeline.
  24  * </p>
  25  *
  26  * @version 1.0
  27  * @author sveyrier
  28  */
  29 public class Stop extends GraphNode {
  30
  31     // ------------------------------------------------------------------------
  32     // Constants
  33     // ------------------------------------------------------------------------
  34     /**
  35      * The graphNode ID
  36      */
  37     public static final String STOP = "STOP"; //$NON-NLS-1$
  38
  39     // ------------------------------------------------------------------------
  40     // Attributes
  41     // ------------------------------------------------------------------------
  42     /**
  43      * The owning lifeline on which the stop appears
  44      */
  45     private Lifeline fLifeline = null;
  46     /**
  47      * This basically represents the time when the stop occurs on the owning Lifeline
  48      *
  49      * @see Lifeline Lifeline for more event occurence details
  50      */
  51     private int fEventOccurrence = 0;
  52
  53     // ------------------------------------------------------------------------
  54     // Methods
  55     // ------------------------------------------------------------------------
  56
  57     @Override
  58     public int getX() {
  59         if (fLifeline == null) {
  60             return 0;
  61         }
  62         return fLifeline.getX() + Metrics.getLifelineWidth() / 2 - Metrics.STOP_WIDTH / 2;
  63     }
  64
  65     @Override
  66     public int getY() {
  67         if (fLifeline == null) {
  68             return 0;
  69         }
  70         return fLifeline.getY() + fLifeline.getHeight() + (Metrics.getMessageFontHeigth() + Metrics.getMessagesSpacing()) * fEventOccurrence - Metrics.STOP_WIDTH / 2;
  71     }
  72
  73     @Override
  74     public int getWidth() {
  75         if (fLifeline == null) {
  76             return 0;
  77         }
  78         return Metrics.STOP_WIDTH;
  79     }
  80
  81     @Override
  82     public int getHeight() {
  83         if (fLifeline == null) {
  84             return 0;
  85         }
  86         return Metrics.STOP_WIDTH;
  87     }
  88
  89     /**
  90      * Set the lifeline on which the stop must be draw
  91      *
  92      * @param theLifeline The the stop owing lifeline
  93      */
  94     public void setLifeline(Lifeline theLifeline) {
  95         fLifeline = theLifeline;
  96     }
  97
  98     /**
  99      * Get the lifeline on which the stop must be draw
 100      *
 101      * @return the the stop owing lifeline
 102      * @since 2.0
 103      */
 104     public Lifeline getLifeline() {
 105         return fLifeline;
 106     }
 107
 108     /**
 109      * Get the event occurrence when this stop appears
 110      *
 111      * @return the eventOccurence to assign to the stop
 112      * @since 2.0
 113      */
 114     public int getEventOccurrence() {
 115         return fEventOccurrence;
 116     }
 117
 118     /**
 119      * Set the event occurrence when this stop appears
 120      *
 121      * @param occurrence the eventOccurence to assign to the stop
 122      */
 123     public void setEventOccurrence(int occurrence) {
 124         fEventOccurrence = occurrence;
 125     }
 126
 127     @Override
 128     public void draw(IGC context) {
 129
 130         ISDPreferences pref = SDViewPref.getInstance();
 131
 132         // Set the appropriate color depending if the graph node if selected or not
 133         if (fLifeline.isSelected()) {
 134             context.setForeground(pref.getBackGroundColorSelection());
 135             context.setLineWidth(Metrics.SELECTION_LINE_WIDTH);
 136             int lastWidth = context.getLineWidth();
 137             context.setLineWidth(9);
 138             // Draw a cross on the lifeline
 139             context.drawLine(getX(), getY(), getX() + getWidth(), getY() + getHeight());
 140             context.drawLine(getX() + getWidth(), getY(), getX(), getY() + getHeight());
 141             // restore the context
 142             context.setLineWidth(lastWidth);
 143             context.setBackground(pref.getBackGroundColorSelection());
 144             context.setForeground(pref.getForeGroundColorSelection());
 145         } else {
 146             context.setBackground(pref.getBackGroundColor(ISDPreferences.PREF_LIFELINE));
 147             context.setForeground(pref.getForeGroundColor(ISDPreferences.PREF_LIFELINE));
 148         }
 149         int lastWidth = context.getLineWidth();
 150         context.setLineWidth(3);
 151         // Draw a cross on the lifeline
 152         context.drawLine(getX(), getY(), getX() + getWidth(), getY() + getHeight());
 153         context.drawLine(getX() + getWidth(), getY(), getX(), getY() + getHeight());
 154         // restore the context
 155         context.setLineWidth(lastWidth);
 156     }
 157
 158     @Override
 159     public String getArrayId() {
 160         return STOP;
 161     }
 162
 163     @Override
 164     public boolean contains(int x, int y) {
 165         return false;
 166     }
 167 }