plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/views/SimulationView.java

   1 package net.mograsim.plugin.views;
   2
   3 import java.util.HashSet;
   4 import java.util.Set;
   5 import java.util.function.Consumer;
   6
   7 import org.eclipse.core.runtime.SafeRunner;
   8 import org.eclipse.debug.core.ILaunch;
   9 import org.eclipse.debug.core.model.IDebugElement;
  10 import org.eclipse.debug.core.model.IDebugTarget;
  11 import org.eclipse.debug.ui.DebugUITools;
  12 import org.eclipse.debug.ui.contexts.IDebugContextListener;
  13 import org.eclipse.debug.ui.contexts.IDebugContextManager;
  14 import org.eclipse.debug.ui.contexts.IDebugContextService;
  15 import org.eclipse.jface.viewers.ISelection;
  16 import org.eclipse.jface.viewers.TreeSelection;
  17 import org.eclipse.swt.SWT;
  18 import org.eclipse.swt.layout.FillLayout;
  19 import org.eclipse.swt.layout.GridData;
  20 import org.eclipse.swt.layout.GridLayout;
  21 import org.eclipse.swt.widgets.Button;
  22 import org.eclipse.swt.widgets.Composite;
  23 import org.eclipse.swt.widgets.Control;
  24 import org.eclipse.swt.widgets.Label;
  25 import org.eclipse.swt.widgets.Scale;
  26 import org.eclipse.ui.PlatformUI;
  27 import org.eclipse.ui.part.ViewPart;
  28
  29 import net.haspamelodica.swt.helper.input.DoubleInput;
  30 import net.haspamelodica.swt.helper.zoomablecanvas.helper.ZoomableCanvasUserInput;
  31 import net.mograsim.logic.core.LogicObserver;
  32 import net.mograsim.logic.core.components.CoreClock;
  33 import net.mograsim.logic.model.LogicUICanvas;
  34 import net.mograsim.machine.Machine;
  35 import net.mograsim.machine.Memory.MemoryCellModifiedListener;
  36 import net.mograsim.machine.mi.AssignableMicroInstructionMemory;
  37 import net.mograsim.plugin.launch.MachineDebugTarget;
  38 import net.mograsim.plugin.tables.DisplaySettings;
  39 import net.mograsim.plugin.tables.mi.ActiveInstructionPreviewContentProvider;
  40 import net.mograsim.plugin.tables.mi.InstructionTable;
  41 import net.mograsim.plugin.util.OverlappingFillLayout;
  42 import net.mograsim.preferences.Preferences;
  43
  44 public class SimulationView extends ViewPart
  45 {
  46         private static final int SIM_SPEED_SCALE_STEPS = 50;
  47         private static final double SIM_SPEED_SCALE_STEP_FACTOR = 1.32;
  48         private static final double SIM_SPEED_SCALE_STEP_FACTOR_LOG = Math.log(SIM_SPEED_SCALE_STEP_FACTOR);
  49
  50         private final Set<Control> controlsToDisableWhenNoMachinePresent;
  51         private Scale simSpeedScale;
  52         private DoubleInput simSpeedInput;
  53         private Composite contextDependentControlsParent;
  54         private Composite canvasParent;
  55         private InstructionTable instPreview;
  56         private ActiveInstructionPreviewContentProvider contentProvider;
  57         private Label noRunningMachineLabel;
  58
  59         private MachineDebugTarget debugTarget;
  60         private LogicUICanvas canvas;
  61
  62         private final MemoryCellModifiedListener memCellListener;
  63         private final LogicObserver clockObserver;
  64         private final IDebugContextListener debugContextListener;
  65         private final Consumer<Double> executionSpeedListener;
  66
  67         public SimulationView()
  68         {
  69                 controlsToDisableWhenNoMachinePresent = new HashSet<>();
  70                 memCellListener = a -> instPreview.refresh();
  71                 // TODO could this be a breakpoint?
  72                 clockObserver = o ->
  73                 {
  74                         if (((CoreClock) o).isOn())
  75                                 SafeRunner.run(() -> debugTarget.suspend());
  76                 };
  77                 debugContextListener = e -> debugContextChanged(e.getContext());
  78                 executionSpeedListener = this::speedFactorChanged;
  79         }
  80
  81         @Override
  82         public void createPartControl(Composite parent)
  83         {
  84                 // initialize UI
  85                 parent.setLayout(new GridLayout());
  86
  87                 addSimulationControlWidgets(parent);
  88
  89                 Composite contextDependentControlsParentParent = new Composite(parent, SWT.NONE);
  90                 contextDependentControlsParentParent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  91                 contextDependentControlsParentParent.setLayout(new OverlappingFillLayout());
  92
  93                 noRunningMachineLabel = new Label(contextDependentControlsParentParent, SWT.NONE);
  94                 noRunningMachineLabel.setText("No machine running && selected in the Debug view...");
  95
  96                 contextDependentControlsParent = new Composite(contextDependentControlsParentParent, SWT.NONE);
  97                 GridLayout contexDependentControlsLayout = new GridLayout();
  98                 contexDependentControlsLayout.marginWidth = 0;
  99                 contexDependentControlsLayout.marginHeight = 0;
 100                 contextDependentControlsParent.setLayout(contexDependentControlsLayout);
 101
 102                 canvasParent = new Composite(contextDependentControlsParent, SWT.NONE);
 103                 canvasParent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 104                 canvasParent.setLayout(new FillLayout());
 105
 106                 addInstructionPreviewControlWidgets(contextDependentControlsParent);
 107
 108                 IDebugContextManager debugCManager = DebugUITools.getDebugContextManager();
 109                 IDebugContextService contextService = debugCManager.getContextService(PlatformUI.getWorkbench().getActiveWorkbenchWindow());
 110                 contextService.addDebugContextListener(debugContextListener);
 111                 debugContextChanged(contextService.getActiveContext());
 112         }
 113
 114         private void addSimulationControlWidgets(Composite parent)
 115         {
 116                 Composite c = new Composite(parent, SWT.NONE);
 117                 c.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
 118                 c.setLayout(new GridLayout(7, false));
 119
 120                 Button sbseButton = new Button(c, SWT.CHECK);
 121                 controlsToDisableWhenNoMachinePresent.add(sbseButton);
 122
 123                 sbseButton.setText("Step by step execution");
 124                 sbseButton.addListener(SWT.Selection, e ->
 125                 {
 126                         CoreClock cl = debugTarget.getMachine().getClock();
 127                         if (sbseButton.getSelection())
 128                                 cl.registerObserver(clockObserver);
 129                         else
 130                                 cl.deregisterObserver(clockObserver);
 131                 });
 132                 sbseButton.setSelection(false);
 133
 134                 Label simSpeedLabel = new Label(c, SWT.NONE);
 135                 controlsToDisableWhenNoMachinePresent.add(simSpeedLabel);
 136                 simSpeedLabel.setText("Simulation Speed: ");
 137
 138                 simSpeedScale = new Scale(c, SWT.NONE);
 139                 controlsToDisableWhenNoMachinePresent.add(simSpeedScale);
 140                 simSpeedScale.setMinimum(0);
 141                 simSpeedScale.setMaximum(SIM_SPEED_SCALE_STEPS);
 142                 simSpeedScale.setIncrement(1);
 143                 simSpeedScale.setSelection(0);
 144                 simSpeedScale.addListener(SWT.Selection, e ->
 145                 {
 146                         double speed = Math.pow(SIM_SPEED_SCALE_STEP_FACTOR, simSpeedScale.getSelection() - SIM_SPEED_SCALE_STEPS);
 147                         debugTarget.setExecutionSpeed(speed);
 148                 });
 149
 150                 simSpeedInput = new DoubleInput(c, SWT.NONE);
 151                 controlsToDisableWhenNoMachinePresent.add(simSpeedInput);
 152                 simSpeedInput.setPrecision(Preferences.current().getInt("net.mograsim.plugin.core.simspeedprecision"));
 153                 simSpeedInput.addChangeListener(speed ->
 154                 {
 155                         if (speed != 0)
 156                                 debugTarget.setExecutionSpeed(speed);
 157                         else
 158                                 debugTarget.setExecutionSpeed(Math.pow(10, -simSpeedInput.getPrecision()));
 159                 });
 160
 161                 c.layout();
 162         }
 163
 164         private void speedFactorChanged(double speed)
 165         {
 166                 simSpeedInput.setValue(speed);
 167                 int closestScalePos = (int) Math.round(Math.log(speed) / SIM_SPEED_SCALE_STEP_FACTOR_LOG + SIM_SPEED_SCALE_STEPS);
 168                 simSpeedScale.setSelection(Math.min(Math.max(closestScalePos, 0), SIM_SPEED_SCALE_STEPS));
 169         }
 170
 171         private void addInstructionPreviewControlWidgets(Composite parent)
 172         {
 173                 instPreview = new InstructionTable(parent, new DisplaySettings(), getSite().getWorkbenchWindow().getWorkbench().getThemeManager());
 174                 instPreview.getTableViewer().getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
 175                 contentProvider = new ActiveInstructionPreviewContentProvider(instPreview.getTableViewer());
 176                 instPreview.setContentProvider(contentProvider);
 177         }
 178
 179         private void debugContextChanged(ISelection selection)
 180         {
 181                 if (selection != null && selection instanceof TreeSelection)
 182                 {
 183                         TreeSelection treeSelection = (TreeSelection) selection;
 184                         Object[] selectedElements = treeSelection.toArray();
 185                         for (Object selectedElement : selectedElements)
 186                         {
 187                                 IDebugTarget debugTarget;
 188                                 if (selectedElement instanceof IDebugElement)
 189                                         debugTarget = ((IDebugElement) selectedElement).getDebugTarget();
 190                                 else if (selectedElement instanceof ILaunch)
 191                                         debugTarget = ((ILaunch) selectedElement).getDebugTarget();
 192                                 else
 193                                         continue;
 194                                 if (!(debugTarget instanceof MachineDebugTarget))
 195                                         continue;
 196                                 if (debugTarget.isTerminated())
 197                                         continue;
 198                                 // we found a selected MachineDebugTarget
 199                                 if (this.debugTarget != debugTarget)
 200                                         bindToDebugTarget((MachineDebugTarget) debugTarget);
 201                                 return;
 202                         }
 203                 }
 204                 // we didn't find a selected MachineDebugTarget
 205                 // call binToDebugTarget even if this.debugTarget==null
 206                 bindToDebugTarget(null);
 207         }
 208
 209         private void bindToDebugTarget(MachineDebugTarget debugTarget)
 210         {
 211                 this.debugTarget = debugTarget;
 212
 213                 if (canvasParent == null)
 214                         // createPartControls has not been called yet
 215                         return;
 216
 217                 double offX;
 218                 double offY;
 219                 double zoom;
 220                 deregisterMachineDependentListeners();
 221                 if (canvas != null)
 222                 {
 223                         offX = canvas.getOffX();
 224                         offY = canvas.getOffY();
 225                         zoom = canvas.getZoom();
 226                         canvas.dispose();
 227                 } else
 228                 {
 229                         offX = 0;
 230                         offY = 0;
 231                         zoom = -1;
 232                 }
 233
 234                 if (debugTarget != null)
 235                 {
 236                         noRunningMachineLabel.setVisible(false);
 237                         contextDependentControlsParent.setVisible(true);
 238                         controlsToDisableWhenNoMachinePresent.forEach(c -> c.setEnabled(true));
 239
 240                         Machine machine = debugTarget.getMachine();
 241
 242                         canvas = new LogicUICanvas(canvasParent, SWT.NONE, machine.getModel());
 243                         canvas.addListener(SWT.MouseDown, e -> canvas.setFocus());
 244                         ZoomableCanvasUserInput userInput = new ZoomableCanvasUserInput(canvas);
 245                         userInput.buttonDrag = Preferences.current().getInt("net.mograsim.logic.model.button.drag");
 246                         userInput.buttonZoom = Preferences.current().getInt("net.mograsim.logic.model.button.zoom");
 247                         userInput.enableUserInput();
 248                         if (zoom > 0)
 249                         {
 250                                 canvas.moveTo(offX, offY, zoom);
 251                                 canvas.commitTransform();
 252                         }
 253
 254                         AssignableMicroInstructionMemory mIMemory = machine.getMicroInstructionMemory();
 255                         instPreview.bindMicroInstructionMemory(mIMemory);
 256                         mIMemory.registerCellModifiedListener(memCellListener);
 257
 258                         canvasParent.layout();
 259
 260                         // update preview
 261                         contentProvider.setMachine(machine);
 262
 263                         // initialize executer
 264                         debugTarget.addExecutionSpeedListener(executionSpeedListener);
 265                         speedFactorChanged(debugTarget.getExecutionSpeed());
 266                 } else
 267                 {
 268                         noRunningMachineLabel.setVisible(true);
 269                         contextDependentControlsParent.setVisible(false);
 270                         controlsToDisableWhenNoMachinePresent.forEach(c -> c.setEnabled(false));
 271                         contentProvider.setMachine(null);
 272                 }
 273         }
 274
 275         private void deregisterMachineDependentListeners()
 276         {
 277                 if (debugTarget != null)
 278                 {
 279                         debugTarget.removeExecutionSpeedListener(executionSpeedListener);
 280                         debugTarget.getMachine().getMicroInstructionMemory().deregisterCellModifiedListener(memCellListener);
 281                         debugTarget.getMachine().getClock().deregisterObserver(clockObserver);
 282                 }
 283         }
 284
 285         @Override
 286         public void setFocus()
 287         {
 288                 if (canvas != null && !canvas.isDisposed())
 289                         canvas.setFocus();
 290         }
 291
 292         @Override
 293         public void dispose()
 294         {
 295                 deregisterMachineDependentListeners();
 296                 DebugUITools.getDebugContextManager().removeDebugContextListener(debugContextListener);
 297                 super.dispose();
 298         }
 299 }