+package net.mograsim.plugin.views;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.function.Consumer;
+
+import org.eclipse.core.runtime.SafeRunner;
+import org.eclipse.debug.core.ILaunch;
+import org.eclipse.debug.core.model.IDebugTarget;
+import org.eclipse.debug.ui.DebugUITools;
+import org.eclipse.debug.ui.contexts.IDebugContextListener;
+import org.eclipse.debug.ui.contexts.IDebugContextManager;
+import org.eclipse.debug.ui.contexts.IDebugContextService;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.TreeSelection;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Scale;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.part.ViewPart;
+
+import net.haspamelodica.swt.helper.input.DoubleInput;
+import net.haspamelodica.swt.helper.zoomablecanvas.helper.ZoomableCanvasUserInput;
+import net.mograsim.logic.core.LogicObserver;
+import net.mograsim.logic.core.components.CoreClock;
+import net.mograsim.logic.model.LogicUICanvas;
+import net.mograsim.machine.Machine;
+import net.mograsim.machine.Memory.MemoryCellModifiedListener;
+import net.mograsim.machine.mi.AssignableMicroInstructionMemory;
+import net.mograsim.plugin.launch.MachineDebugTarget;
+import net.mograsim.plugin.tables.DisplaySettings;
+import net.mograsim.plugin.tables.mi.ActiveInstructionPreviewContentProvider;
+import net.mograsim.plugin.tables.mi.InstructionTable;
+import net.mograsim.plugin.util.OverlappingFillLayout;
+import net.mograsim.preferences.Preferences;
+
+public class SimulationView extends ViewPart
+{
+ private static final int SIM_SPEED_SCALE_STEPS = 50;
+ private static final double SIM_SPEED_SCALE_STEP_FACTOR = 1.32;
+ private static final double SIM_SPEED_SCALE_STEP_FACTOR_LOG = Math.log(SIM_SPEED_SCALE_STEP_FACTOR);
+
+ private final Set<Control> controlsToDisableWhenNoMachinePresent;
+ private Scale simSpeedScale;
+ private DoubleInput simSpeedInput;
+ private Composite contextDependentControlsParent;
+ private Composite canvasParent;
+ private InstructionTable instPreview;
+ private ActiveInstructionPreviewContentProvider contentProvider;
+ private Label noRunningMachineLabel;
+
+ private MachineDebugTarget debugTarget;
+ private LogicUICanvas canvas;
+
+ private final MemoryCellModifiedListener memCellListener;
+ private final LogicObserver clockObserver;
+ private final IDebugContextListener debugContextListener;
+ private final Consumer<Double> executionSpeedListener;
+
+ public SimulationView()
+ {
+ controlsToDisableWhenNoMachinePresent = new HashSet<>();
+ memCellListener = a -> instPreview.refresh();
+ // TODO could this be a breakpoint?
+ clockObserver = o ->
+ {
+ if (((CoreClock) o).isOn())
+ SafeRunner.run(() -> debugTarget.suspend());
+ };
+ debugContextListener = e -> debugContextChanged(e.getContext());
+ executionSpeedListener = this::speedFactorChanged;
+ }
+
+ @Override
+ public void createPartControl(Composite parent)
+ {
+ // initialize UI
+ parent.setLayout(new GridLayout());
+
+ addSimulationControlWidgets(parent);
+
+ Composite contextDependentControlsParentParent = new Composite(parent, SWT.NONE);
+ contextDependentControlsParentParent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+ contextDependentControlsParentParent.setLayout(new OverlappingFillLayout());
+
+ noRunningMachineLabel = new Label(contextDependentControlsParentParent, SWT.NONE);
+ noRunningMachineLabel.setText("No machine running && selected in the Debug view...");
+
+ contextDependentControlsParent = new Composite(contextDependentControlsParentParent, SWT.NONE);
+ GridLayout contexDependentControlsLayout = new GridLayout();
+ contexDependentControlsLayout.marginWidth = 0;
+ contexDependentControlsLayout.marginHeight = 0;
+ contextDependentControlsParent.setLayout(contexDependentControlsLayout);
+
+ canvasParent = new Composite(contextDependentControlsParent, SWT.NONE);
+ canvasParent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+ canvasParent.setLayout(new FillLayout());
+
+ addInstructionPreviewControlWidgets(contextDependentControlsParent);
+
+ IDebugContextManager debugCManager = DebugUITools.getDebugContextManager();
+ IDebugContextService contextService = debugCManager.getContextService(PlatformUI.getWorkbench().getActiveWorkbenchWindow());
+ contextService.addDebugContextListener(debugContextListener);
+ debugContextChanged(contextService.getActiveContext());
+ }
+
+ private void addSimulationControlWidgets(Composite parent)
+ {
+ Composite c = new Composite(parent, SWT.NONE);
+ c.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+ c.setLayout(new GridLayout(7, false));
+
+ Button sbseButton = new Button(c, SWT.CHECK);
+ controlsToDisableWhenNoMachinePresent.add(sbseButton);
+
+ sbseButton.setText("Step by step execution");
+ sbseButton.addListener(SWT.Selection, e ->
+ {
+ CoreClock cl = debugTarget.getMachine().getClock();
+ if (sbseButton.getSelection())
+ cl.registerObserver(clockObserver);
+ else
+ cl.deregisterObserver(clockObserver);
+ });
+ sbseButton.setSelection(false);
+
+ Label simSpeedLabel = new Label(c, SWT.NONE);
+ controlsToDisableWhenNoMachinePresent.add(simSpeedLabel);
+ simSpeedLabel.setText("Simulation Speed: ");
+
+ simSpeedScale = new Scale(c, SWT.NONE);
+ controlsToDisableWhenNoMachinePresent.add(simSpeedScale);
+ simSpeedScale.setMinimum(0);
+ simSpeedScale.setMaximum(SIM_SPEED_SCALE_STEPS);
+ simSpeedScale.setIncrement(1);
+ simSpeedScale.setSelection(0);
+ simSpeedScale.addListener(SWT.Selection, e ->
+ {
+ double speed = Math.pow(SIM_SPEED_SCALE_STEP_FACTOR, simSpeedScale.getSelection() - SIM_SPEED_SCALE_STEPS);
+ debugTarget.setExecutionSpeed(speed);
+ });
+
+ simSpeedInput = new DoubleInput(c, SWT.NONE);
+ controlsToDisableWhenNoMachinePresent.add(simSpeedInput);
+ simSpeedInput.setPrecision(Preferences.current().getInt("net.mograsim.plugin.core.simspeedprecision"));
+ simSpeedInput.addChangeListener(speed ->
+ {
+ if (speed != 0)
+ debugTarget.setExecutionSpeed(speed);
+ else
+ debugTarget.setExecutionSpeed(Math.pow(10, -simSpeedInput.getPrecision()));
+ });
+
+ c.layout();
+ }
+
+ private void speedFactorChanged(double speed)
+ {
+ simSpeedInput.setValue(speed);
+ int closestScalePos = (int) Math.round(Math.log(speed) / SIM_SPEED_SCALE_STEP_FACTOR_LOG + SIM_SPEED_SCALE_STEPS);
+ simSpeedScale.setSelection(Math.min(Math.max(closestScalePos, 0), SIM_SPEED_SCALE_STEPS));
+ }
+
+ private void addInstructionPreviewControlWidgets(Composite parent)
+ {
+ instPreview = new InstructionTable(parent, new DisplaySettings(), getSite().getWorkbenchWindow().getWorkbench().getThemeManager());
+ instPreview.getTableViewer().getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+ contentProvider = new ActiveInstructionPreviewContentProvider(instPreview.getTableViewer());
+ instPreview.setContentProvider(contentProvider);
+ }
+
+ private void debugContextChanged(ISelection selection)
+ {
+ if (selection != null && selection instanceof TreeSelection)
+ {
+ TreeSelection treeSelection = (TreeSelection) selection;
+ Object[] selectedElements = treeSelection.toArray();
+ for (Object selectedElement : selectedElements)
+ {
+ MachineDebugTarget debugTarget;
+ if (selectedElement instanceof MachineDebugTarget)
+ debugTarget = (MachineDebugTarget) selectedElement;
+ else if (selectedElement instanceof ILaunch)
+ {
+ ILaunch launch = (ILaunch) selectedElement;
+ IDebugTarget genericDebugTarget = launch.getDebugTarget();
+ if (genericDebugTarget instanceof MachineDebugTarget)
+ debugTarget = (MachineDebugTarget) genericDebugTarget;
+ else
+ continue;
+ } else
+ continue;
+ if (debugTarget.isTerminated())
+ continue;
+ // we found a selected MachineDebugTarget
+ if (this.debugTarget != debugTarget)
+ bindToDebugTarget(debugTarget);
+ return;
+ }
+ }
+ // we didn't find a selected MachineDebugTarget
+ // call binToDebugTarget even if this.debugTarget==null
+ bindToDebugTarget(null);
+ }
+
+ private void bindToDebugTarget(MachineDebugTarget debugTarget)
+ {
+ this.debugTarget = debugTarget;
+
+ if (canvasParent == null)
+ // createPartControls has not been called yet
+ return;
+
+ double offX;
+ double offY;
+ double zoom;
+ deregisterMachineDependentListeners();
+ if (canvas != null)
+ {
+ offX = canvas.getOffX();
+ offY = canvas.getOffY();
+ zoom = canvas.getZoom();
+ canvas.dispose();
+ } else
+ {
+ offX = 0;
+ offY = 0;
+ zoom = -1;
+ }
+
+ if (debugTarget != null)
+ {
+ noRunningMachineLabel.setVisible(false);
+ contextDependentControlsParent.setVisible(true);
+ controlsToDisableWhenNoMachinePresent.forEach(c -> c.setEnabled(true));
+
+ Machine machine = debugTarget.getMachine();
+
+ canvas = new LogicUICanvas(canvasParent, SWT.NONE, machine.getModel());
+ canvas.addListener(SWT.MouseDown, e -> canvas.setFocus());
+ ZoomableCanvasUserInput userInput = new ZoomableCanvasUserInput(canvas);
+ userInput.buttonDrag = Preferences.current().getInt("net.mograsim.logic.model.button.drag");
+ userInput.buttonZoom = Preferences.current().getInt("net.mograsim.logic.model.button.zoom");
+ userInput.enableUserInput();
+ if (zoom > 0)
+ {
+ canvas.moveTo(offX, offY, zoom);
+ canvas.commitTransform();
+ }
+
+ AssignableMicroInstructionMemory mIMemory = machine.getMicroInstructionMemory();
+ instPreview.bindMicroInstructionMemory(mIMemory);
+ mIMemory.registerCellModifiedListener(memCellListener);
+
+ canvasParent.layout();
+
+ // update preview
+ contentProvider.setMachine(machine);
+
+ // initialize executer
+ debugTarget.addExecutionSpeedListener(executionSpeedListener);
+ speedFactorChanged(debugTarget.getExecutionSpeed());
+ } else
+ {
+ noRunningMachineLabel.setVisible(true);
+ contextDependentControlsParent.setVisible(false);
+ controlsToDisableWhenNoMachinePresent.forEach(c -> c.setEnabled(false));
+ contentProvider.setMachine(null);
+ }
+ }
+
+ private void deregisterMachineDependentListeners()
+ {
+ if (debugTarget != null)
+ {
+ debugTarget.removeExecutionSpeedListener(executionSpeedListener);
+ debugTarget.getMachine().getMicroInstructionMemory().deregisterCellModifiedListener(memCellListener);
+ debugTarget.getMachine().getClock().deregisterObserver(clockObserver);
+ }
+ }
+
+ @Override
+ public void setFocus()
+ {
+ if (canvas != null && !canvas.isDisposed())
+ canvas.setFocus();
+ }
+
+ @Override
+ public void dispose()
+ {
+ deregisterMachineDependentListeners();
+ DebugUITools.getDebugContextManager().removeDebugContextListener(debugContextListener);
+ super.dispose();
+ }
+}
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