SampleERCP/src/sampleercp/parts/LogicUIPart.java

   1 package sampleercp.parts;
   2
   3 import javax.annotation.PostConstruct;
   4 import javax.inject.Inject;
   5
   6 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
   7 import org.eclipse.swt.SWT;
   8 import org.eclipse.swt.widgets.Composite;
   9
  10 import era.mi.gui.LogicUICanvas;
  11 import era.mi.gui.examples.RSLatchGUIExample;
  12 import era.mi.logic.timeline.Timeline;
  13 import net.haspamelodica.swt.helper.zoomablecanvas.helper.ZoomableCanvasUserInput;
  14
  15 public class LogicUIPart
  16 {
  17         @Inject
  18         private MPart part;
  19
  20         @PostConstruct
  21         public void create(Composite parent)
  22         {
  23                 Timeline timeline = new Timeline(11);
  24                 LogicUICanvas ui = new LogicUICanvas(parent, SWT.NONE);
  25                 RSLatchGUIExample.addComponentsAndWires(ui);
  26                 ui.addTransformListener((x, y, z) -> part.setDirty(z < 1));
  27                 ZoomableCanvasUserInput userInput = new ZoomableCanvasUserInput(ui);
  28                 userInput.buttonDrag = 3;
  29                 userInput.buttonZoom = 2;
  30                 userInput.enableUserInput();
  31                 Thread simulationThread = new Thread(() ->
  32                 {
  33                         // TODO find a better condition
  34                         while (!ui.isDisposed())
  35                         {
  36                                 // always execute to keep timeline from "hanging behind" for too long
  37                                 timeline.executeUpTo(System.currentTimeMillis(), System.currentTimeMillis() + 10);
  38                                 long sleepTime;
  39                                 if (timeline.hasNext())
  40                                         sleepTime = timeline.nextEventTime() - System.currentTimeMillis();
  41                                 else
  42                                         sleepTime = 10;
  43                                 try
  44                                 {
  45                                         if (sleepTime > 0)
  46                                                 Thread.sleep(sleepTime);
  47                                 }
  48                                 catch (InterruptedException e)
  49                                 {
  50                                 } // it is normal execution flow to be interrupted
  51                         }
  52                 });
  53                 simulationThread.start();
  54                 timeline.addEventAddedListener(event ->
  55                 {
  56                         if (event.getTiming() <= System.currentTimeMillis())
  57                                 simulationThread.interrupt();
  58                 });
  59         }
  60 }