+package net.mograsim.plugin.editors;
+
+import java.io.ByteArrayInputStream;
+import java.math.BigInteger;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.util.SafeRunnable;
+import org.eclipse.jface.viewers.TableViewerColumn;
+import org.eclipse.swt.SWT;
+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.Label;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.TableColumn;
+import org.eclipse.swt.widgets.Text;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IEditorSite;
+import org.eclipse.ui.IFileEditorInput;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.part.EditorPart;
+
+import net.mograsim.machine.MainMemory;
+import net.mograsim.machine.mi.MicroInstructionMemoryParseException;
+import net.mograsim.machine.standard.memory.WordAddressableMemory;
+import net.mograsim.plugin.asm.AsmNumberUtil;
+import net.mograsim.plugin.nature.MachineContext;
+import net.mograsim.plugin.nature.ProjectMachineContext;
+import net.mograsim.plugin.tables.AddressLabelProvider;
+import net.mograsim.plugin.tables.DisplaySettings;
+import net.mograsim.plugin.tables.LazyTableViewer;
+import net.mograsim.plugin.tables.NumberColumnLabelProvider;
+import net.mograsim.plugin.tables.RadixSelector;
+import net.mograsim.plugin.tables.memory.MemoryCellEditingSupport;
+import net.mograsim.plugin.tables.memory.MemoryTableContentProvider;
+import net.mograsim.plugin.tables.memory.MemoryTableRow;
+import net.mograsim.plugin.tables.memory.NumberVerifyListener;
+
+public class MemoryEditor extends EditorPart
+{
+ private MachineContext context;
+
+ private MainMemory memory;
+
+ private LazyTableViewer viewer;
+ private MemoryTableContentProvider provider;
+ private DisplaySettings displaySettings;
+
+ @Override
+ public void createPartControl(Composite parent)
+ {
+ provider = new MemoryTableContentProvider();
+ displaySettings = new DisplaySettings();
+
+ parent.setLayout(new GridLayout(7, false));
+
+ createHeader(parent);
+ createViewer(parent);
+
+ displaySettings.addObserver(() -> viewer.refresh());
+ }
+
+ @SuppressWarnings("unused") // RadixSelector and exceptions
+ private void createHeader(Composite parent)
+ {
+ Label fromLabel = new Label(parent, SWT.NONE);
+ fromLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
+ fromLabel.setText("Address: ");
+
+ Text fromText = new Text(parent, SWT.BORDER);
+ fromText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+ NumberVerifyListener vl = new NumberVerifyListener();
+ fromText.addVerifyListener(vl);
+ fromText.setText("0");
+ fromText.addModifyListener(e ->
+ {
+ try
+ {
+ provider.setLowerBound(AsmNumberUtil.valueOf(fromText.getText()).longValue());
+ viewer.refresh();
+ }
+ catch (NumberFormatException x)
+ {
+ // Nothing to do here
+ }
+ });
+ Label amountLabel = new Label(parent, SWT.NONE);
+ amountLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
+ amountLabel.setText("Number of cells: ");
+ Text amountText = new Text(parent, SWT.BORDER);
+ amountText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+ amountText.addVerifyListener(vl);
+ amountText.setText("0");
+ amountText.addModifyListener(e ->
+ {
+ try
+ {
+ provider.setAmount(AsmNumberUtil.valueOf(amountText.getText()).intValue());
+ viewer.refresh();
+ }
+ catch (NumberFormatException x)
+ {
+ // Nothing to do here
+ }
+ });
+ new RadixSelector(parent, displaySettings);
+
+ addActivationButton(parent);
+ }
+
+ private void addActivationButton(Composite parent)
+ {
+ Button activationButton = new Button(parent, SWT.PUSH);
+ activationButton.setText("Set Active");
+ activationButton.addListener(SWT.Selection, e -> context.getActiveMachine().ifPresent(m -> m.getMainMemory().bind(memory)));
+ }
+
+ private void createViewer(Composite parent)
+ {
+ viewer = new LazyTableViewer(parent, SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
+ createColumns();
+ Table table = viewer.getTable();
+ table.setHeaderVisible(true);
+ table.setLinesVisible(true);
+ viewer.setUseHashlookup(true);
+ viewer.setContentProvider(provider);
+ getSite().setSelectionProvider(viewer);// TODO what does this?
+ viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 7, 1));
+ if (memory != null)
+ viewer.setInput(memory);
+ }
+
+ private void createColumns()
+ {
+ TableViewerColumn addrCol = createTableViewerColumn("Address", 100);
+ addrCol.setLabelProvider(new AddressLabelProvider());
+
+ TableViewerColumn dataCol = createTableViewerColumn("Data", 100);
+ dataCol.setLabelProvider(new NumberColumnLabelProvider(displaySettings)
+ {
+ @Override
+ public BigInteger getAsBigInteger(Object element)
+ {
+ MemoryTableRow row = (MemoryTableRow) element;
+ return row.getMemory().getCellAsBigInteger(row.address);
+ }
+
+ @Override
+ public int getBitLength(Object element)
+ {
+ return ((MemoryTableRow) element).getMemory().getDefinition().getCellWidth();
+ }
+ });
+ dataCol.setEditingSupport(new MemoryCellEditingSupport(viewer, displaySettings));
+ }
+
+ private TableViewerColumn createTableViewerColumn(String title, int width)
+ {
+ TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
+ TableColumn column = viewerColumn.getColumn();
+ column.setText(title);
+ column.setWidth(width);
+ column.setResizable(true);
+ column.setMoveable(false);
+ return viewerColumn;
+ }
+
+ @Override
+ public void init(IEditorSite site, IEditorInput input) throws PartInitException
+ {
+ if (input instanceof IFileEditorInput)
+ {
+ IFileEditorInput fileInput = (IFileEditorInput) input;
+ context = ProjectMachineContext.getMachineContextOf(fileInput.getFile().getProject());
+ context.activateMachine();
+
+ setPartName(fileInput.getName());
+ open(fileInput.getFile());
+ } else
+ throw new IllegalArgumentException("MemoryEditor can only be used with Files");
+
+ setSite(site);
+ setInput(input);
+ }
+
+ @Override
+ public void doSave(IProgressMonitor monitor)
+ {
+ IEditorInput input = getEditorInput();
+ if (input instanceof IFileEditorInput)
+ SafeRunnable.getRunner().run(() -> save(((IFileEditorInput) input).getFile(), monitor));
+ }
+
+ private void save(IFile file, IProgressMonitor monitor) throws CoreException
+ {
+ file.setContents(new ByteArrayInputStream("actual contents will go here".getBytes()), 0, monitor);
+ }
+
+ private void open(IFile file)
+ {
+ // TODO actually parse the file
+ memory = new WordAddressableMemory(context.getMachineDefinition()
+ .orElseThrow(() -> new MicroInstructionMemoryParseException("No MachineDefinition assigned!")).getMainMemoryDefinition());
+ if (viewer != null)
+ viewer.setInput(memory);
+ }
+
+ @Override
+ public void doSaveAs()
+ {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public boolean isDirty()
+ {
+ // TODO
+ return false;
+ }
+
+ @Override
+ public boolean isSaveAsAllowed()
+ {
+ return false;
+ }
+
+ @Override
+ public void setFocus()
+ {
+ viewer.getTable().setFocus();
+ }
+
+ @Override
+ public void dispose()
+ {
+ // TODO Auto-generated method stub
+ super.dispose();
+ }
+}
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