plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/editors/SimulationViewEditor.java

   1 package net.mograsim.plugin.editors;
   2
   3 import java.io.ByteArrayInputStream;
   4 import java.util.Optional;
   5
   6 import org.eclipse.core.resources.IFile;
   7 import org.eclipse.core.runtime.CoreException;
   8 import org.eclipse.core.runtime.IProgressMonitor;
   9 import org.eclipse.jface.util.SafeRunnable;
  10 import org.eclipse.swt.SWT;
  11 import org.eclipse.swt.events.MouseEvent;
  12 import org.eclipse.swt.events.MouseTrackListener;
  13 import org.eclipse.swt.layout.FillLayout;
  14 import org.eclipse.swt.layout.GridData;
  15 import org.eclipse.swt.layout.GridLayout;
  16 import org.eclipse.swt.widgets.Button;
  17 import org.eclipse.swt.widgets.Composite;
  18 import org.eclipse.swt.widgets.Display;
  19 import org.eclipse.swt.widgets.Label;
  20 import org.eclipse.swt.widgets.Slider;
  21 import org.eclipse.ui.IEditorInput;
  22 import org.eclipse.ui.IEditorSite;
  23 import org.eclipse.ui.IFileEditorInput;
  24 import org.eclipse.ui.PartInitException;
  25 import org.eclipse.ui.part.EditorPart;
  26
  27 import net.haspamelodica.swt.helper.zoomablecanvas.helper.ZoomableCanvasUserInput;
  28 import net.mograsim.logic.core.LogicObserver;
  29 import net.mograsim.logic.core.components.CoreClock;
  30 import net.mograsim.logic.model.LogicExecuter;
  31 import net.mograsim.logic.model.LogicUICanvas;
  32 import net.mograsim.machine.Machine;
  33 import net.mograsim.machine.Memory.MemoryCellModifiedListener;
  34 import net.mograsim.machine.mi.AssignableMicroInstructionMemory;
  35 import net.mograsim.plugin.nature.MachineContext;
  36 import net.mograsim.plugin.nature.ProjectMachineContext;
  37 import net.mograsim.plugin.tables.DisplaySettings;
  38 import net.mograsim.plugin.tables.mi.ActiveInstructionPreviewContentProvider;
  39 import net.mograsim.plugin.tables.mi.InstructionTable;
  40
  41 //TODO what if we open multiple editors?
  42 //TODO actually save / load register and latch states
  43 public class SimulationViewEditor extends EditorPart
  44 {
  45         private MachineContext context;
  46
  47         private LogicExecuter exec;
  48         private Machine machine;
  49
  50         private Composite parent;
  51         private Button sbseButton;
  52         private Button pauseButton;
  53         private Slider simSpeedSlider;
  54         private Composite canvasParent;
  55         private LogicUICanvas canvas;
  56         private InstructionTable instPreview;
  57         private Label noMachineLabel;
  58
  59         private MemoryCellModifiedListener currentRegisteredCellListener;
  60         private LogicObserver currentClockObserver;
  61
  62         @Override
  63         public void createPartControl(Composite parent)
  64         {
  65                 this.parent = parent;
  66                 // initialize UI
  67                 parent.setLayout(new GridLayout());
  68
  69                 noMachineLabel = new Label(parent, SWT.NONE);
  70                 noMachineLabel.setText("No machine present...");// TODO internationalize?
  71                 addSimulationControlWidgets(parent);
  72                 canvasParent = new Composite(parent, SWT.NONE);
  73                 canvasParent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  74                 canvasParent.setLayout(new FillLayout());
  75                 addInstructionPreviewControlWidgets(parent);
  76                 recreateContextDependentControls();
  77         }
  78
  79         private void recreateContextDependentControls()
  80         {
  81                 if (parent == null)
  82                         // createPartControls has not been called yet
  83                         return;
  84
  85                 double offX;
  86                 double offY;
  87                 double zoom;
  88                 if (exec != null)
  89                         exec.stopLiveExecution();
  90                 if (machine != null)
  91                 {
  92                         machine.getMicroInstructionMemory().deregisterCellModifiedListener(currentRegisteredCellListener);
  93                         machine.getClock().deregisterObserver(currentClockObserver);
  94                 }
  95                 if (canvas != null)
  96                 {
  97                         offX = canvas.getOffX();
  98                         offY = canvas.getOffY();
  99                         zoom = canvas.getZoom();
 100                         canvas.dispose();
 101                 } else
 102                 {
 103                         offX = 0;
 104                         offY = 0;
 105                         zoom = -1;
 106                 }
 107
 108                 Optional<Machine> machineOptional;
 109                 if (context != null && (machineOptional = context.getActiveMachine()).isPresent())
 110                 {
 111                         noMachineLabel.setVisible(false);
 112                         sbseButton.setEnabled(true);
 113                         pauseButton.setEnabled(true);
 114                         simSpeedSlider.setEnabled(true);
 115
 116                         machine = machineOptional.get();
 117                         canvas = new LogicUICanvas(canvasParent, SWT.NONE, machine.getModel());
 118                         ZoomableCanvasUserInput userInput = new ZoomableCanvasUserInput(canvas);
 119                         userInput.buttonDrag = 3;
 120                         userInput.buttonZoom = 2;
 121                         userInput.enableUserInput();
 122                         if (zoom > 0)
 123                         {
 124                                 canvas.moveTo(offX, offY, zoom);
 125                                 canvas.commitTransform();
 126                         }
 127
 128                         AssignableMicroInstructionMemory mIMemory = machine.getMicroInstructionMemory();
 129                         instPreview.bindMicroInstructionMemory(mIMemory);
 130                         currentRegisteredCellListener = a -> instPreview.refresh();
 131                         mIMemory.registerCellModifiedListener(currentRegisteredCellListener);
 132
 133                         canvasParent.layout();
 134
 135                         // initialize executer
 136                         exec = new LogicExecuter(machine.getTimeline());
 137                         exec.startLiveExecution();
 138                 } else
 139                 {
 140                         noMachineLabel.setVisible(true);
 141                         sbseButton.setEnabled(false);
 142                         pauseButton.setEnabled(false);
 143                         simSpeedSlider.setEnabled(false);
 144                 }
 145         }
 146
 147         private void addSimulationControlWidgets(Composite parent)
 148         {
 149                 Composite c = new Composite(parent, SWT.NONE);
 150                 c.setLayout(new GridLayout(7, false));
 151
 152                 sbseButton = new Button(c, SWT.CHECK);
 153                 pauseButton = new Button(c, SWT.TOGGLE);
 154                 currentClockObserver = o ->
 155                 {
 156                         if (((CoreClock) o).isOn())
 157                         {
 158                                 exec.pauseLiveExecution();
 159                                 if (!pauseButton.isDisposed())
 160                                         Display.getDefault().asyncExec(() ->
 161                                         {
 162                                                 if (!pauseButton.isDisposed())
 163                                                         pauseButton.setSelection(false);
 164                                                 setPauseText(pauseButton, false);
 165                                         });
 166                         }
 167                 };
 168
 169                 sbseButton.setText("Step by step execution");
 170                 sbseButton.addListener(SWT.Selection, e ->
 171                 {
 172                         CoreClock cl = machine.getClock();
 173                         if (sbseButton.getSelection())
 174                                 cl.registerObserver(currentClockObserver);
 175                         else
 176                                 cl.deregisterObserver(currentClockObserver);
 177                 });
 178                 sbseButton.setSelection(false);
 179
 180                 pauseButton.setSelection(true);
 181                 setPauseText(pauseButton, false);
 182
 183                 pauseButton.addListener(SWT.Selection, e ->
 184                 {
 185                         setPauseText(pauseButton, false);
 186                         if (pauseButton.getSelection())
 187                         {
 188                                 exec.unpauseLiveExecution();
 189                         } else
 190                         {
 191                                 exec.pauseLiveExecution();
 192                         }
 193                 });
 194                 pauseButton.addMouseTrackListener(new MouseTrackListener()
 195                 {
 196                         @Override
 197                         public void mouseHover(MouseEvent e)
 198                         {
 199                                 // nothing
 200                         }
 201
 202                         @Override
 203                         public void mouseExit(MouseEvent e)
 204                         {
 205                                 setPauseText(pauseButton, false);
 206                         }
 207
 208                         @Override
 209                         public void mouseEnter(MouseEvent e)
 210                         {
 211                                 setPauseText(pauseButton, true);
 212                         }
 213                 });
 214
 215                 Label speedLabel = new Label(c, SWT.NONE);
 216                 speedLabel.setText("Simulation Speed: ");
 217
 218                 simSpeedSlider = new Slider(c, SWT.NONE);
 219                 simSpeedSlider.setMinimum(1);
 220                 simSpeedSlider.setMaximum(100 + simSpeedSlider.getThumb());
 221                 simSpeedSlider.setIncrement(1);
 222
 223                 Label speedPercentageLabel = new Label(c, SWT.NONE);
 224                 speedPercentageLabel.setText("100%");
 225
 226                 simSpeedSlider.addListener(SWT.Selection, e ->
 227                 {
 228                         int selection = simSpeedSlider.getSelection();
 229                         speedPercentageLabel.setText(selection + "%");
 230
 231                         exec.setSpeedPercentage(simSpeedSlider.getSelection());
 232                 });
 233                 simSpeedSlider.setSelection(100);
 234
 235                 c.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL));
 236                 c.pack();
 237         }
 238
 239         private void addInstructionPreviewControlWidgets(Composite parent)
 240         {
 241                 instPreview = new InstructionTable(parent, new DisplaySettings());
 242                 instPreview.getTableViewer().getTable().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
 243                 instPreview.setContentProvider(new ActiveInstructionPreviewContentProvider(instPreview.getTableViewer()));
 244         }
 245
 246         private static void setPauseText(Button pauseButton, boolean hovered)
 247         {
 248                 if (hovered)
 249                         if (pauseButton.getSelection())
 250                                 pauseButton.setText("Pause?");
 251                         else
 252                                 pauseButton.setText("Resume?");
 253                 else if (pauseButton.getSelection())
 254                         pauseButton.setText("Running");
 255                 else
 256                         pauseButton.setText("Paused");
 257         }
 258
 259         @Override
 260         public void init(IEditorSite site, IEditorInput input) throws PartInitException
 261         {
 262                 if (input instanceof IFileEditorInput)
 263                 {
 264                         IFileEditorInput fileInput = (IFileEditorInput) input;
 265                         context = ProjectMachineContext.getMachineContextOf(fileInput.getFile().getProject());
 266                         context.registerObserver(m -> recreateContextDependentControls());
 267                         recreateContextDependentControls();
 268
 269                         setPartName(fileInput.getName());
 270                         open(fileInput.getFile());
 271                 } else
 272                         throw new IllegalArgumentException("SimulationViewEditor can only be used with Files");
 273
 274                 setSite(site);
 275                 setInput(input);
 276         }
 277
 278         @Override
 279         public void doSave(IProgressMonitor monitor)
 280         {
 281                 IEditorInput input = getEditorInput();
 282                 if (input instanceof IFileEditorInput)
 283                         SafeRunnable.getRunner().run(() -> save(((IFileEditorInput) input).getFile(), monitor));
 284                 else
 285                         throw new IllegalArgumentException("SimulationViewEditor can only be used with Files");
 286         }
 287
 288         private void save(IFile file, IProgressMonitor monitor) throws CoreException
 289         {
 290                 file.setContents(new ByteArrayInputStream("actual contents will go here".getBytes()), 0, monitor);
 291         }
 292
 293         private void open(IFile file)
 294         {
 295                 // do nothing yet
 296         }
 297
 298         @Override
 299         public void doSaveAs()
 300         {
 301                 throw new UnsupportedOperationException();
 302         }
 303
 304         @Override
 305         public boolean isDirty()
 306         {
 307                 return false;
 308         }
 309
 310         @Override
 311         public boolean isSaveAsAllowed()
 312         {
 313                 return false;
 314         }
 315
 316         @Override
 317         public void setFocus()
 318         {
 319                 canvas.setFocus();
 320         }
 321
 322         @Override
 323         public void dispose()
 324         {
 325                 exec.stopLiveExecution();
 326                 super.dispose();
 327         }
 328 }