+package net.mograsim.plugin.tables.mi;
+
+import java.util.Arrays;
+
+import org.eclipse.jface.viewers.ColumnLabelProvider;
+import org.eclipse.jface.viewers.EditingSupport;
+import org.eclipse.jface.viewers.TableViewerColumn;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.TableColumn;
+
+import net.mograsim.machine.mi.MicroInstructionDefinition;
+import net.mograsim.machine.mi.MicroInstructionMemory;
+import net.mograsim.machine.mi.parameters.MnemonicFamily;
+import net.mograsim.machine.mi.parameters.ParameterClassification;
+import net.mograsim.plugin.tables.AddressLabelProvider;
+import net.mograsim.plugin.tables.DisplaySettings;
+import net.mograsim.plugin.tables.LazyTableViewer;
+
+public class InstructionTable
+{
+ protected DisplaySettings displaySettings;
+ protected LazyTableViewer viewer;
+ private TableViewerColumn[] columns = new TableViewerColumn[0];
+ private MicroInstructionDefinition miDef;
+ private MicroInstructionMemory memory;
+ private InstructionTableContentProvider provider;
+
+ public InstructionTable(Composite parent, DisplaySettings displaySettings)
+ {
+ viewer = new LazyTableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
+ this.displaySettings = displaySettings;
+
+ Table table = viewer.getTable();
+ table.setHeaderVisible(true);
+ table.setLinesVisible(true);
+ viewer.setUseHashlookup(true);
+
+ GridData viewerData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
+ viewerData.horizontalSpan = 3;
+ viewer.getTable().setLayoutData(viewerData);
+
+ displaySettings.addObserver(() -> viewer.refresh());
+ }
+
+ private void deleteColumns()
+ {
+ for (TableViewerColumn col : columns)
+ col.getColumn().dispose();
+ }
+
+ private void createColumns()
+ {
+ int size = miDef.size();
+ columns = new TableViewerColumn[size + 1];
+
+ TableViewerColumn col = createTableViewerColumn("Address", generateLongestHexStrings(12));
+ columns[0] = col;
+ col.setLabelProvider(new AddressLabelProvider());
+
+ int bit = miDef.sizeInBits();
+ ParameterClassification[] classes = miDef.getParameterClassifications();
+
+ for (int i = 0; i < size; i++)
+ {
+ int startBit = bit - 1;
+ int endBit = bit = bit - classes[i].getExpectedBits();
+ String name = startBit == endBit ? Integer.toString(startBit) : startBit + "..." + endBit;
+
+ String[] longestPossibleContents;
+ switch (classes[i].getExpectedType())
+ {
+ case INTEGER_IMMEDIATE:
+ longestPossibleContents = generateLongestHexStrings(classes[i].getExpectedBits());
+ break;
+ case BOOLEAN_IMMEDIATE:
+ case MNEMONIC:
+ longestPossibleContents = ((MnemonicFamily) classes[i]).getStringValues();
+ break;
+ default:
+ longestPossibleContents = new String[0];
+ break;
+ }
+
+ col = createTableViewerColumn(name, longestPossibleContents);
+ columns[i + 1] = col;
+ createEditingAndLabel(col, miDef, i);
+ }
+ }
+
+ public void bindMicroInstructionMemory(MicroInstructionMemory memory)
+ {
+ this.memory = memory;
+ this.miDef = memory.getDefinition().getMicroInstructionDefinition();
+ setViewerInput(memory);
+ }
+
+ private static final String[] HEX_DIGITS = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
+
+ private static String[] generateLongestHexStrings(int bitWidth)
+ {
+ return Arrays.stream(HEX_DIGITS).map(s -> "0x" + s.repeat((bitWidth + 3) / 4)).toArray(String[]::new);
+ }
+
+ private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
+ {
+ ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
+ EditingSupport support;
+ ColumnLabelProvider provider;
+ switch (parameterClassification.getExpectedType())
+ {
+ case BOOLEAN_IMMEDIATE:
+ support = new BooleanEditingSupport(viewer, miDef, index);
+ provider = new ParameterLabelProvider(index);
+ break;
+ case INTEGER_IMMEDIATE:
+ support = new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider);
+ provider = new IntegerColumnLabelProvider(displaySettings, index);
+ break;
+ case MNEMONIC:
+ support = new MnemonicEditingSupport(viewer, miDef, index, this.provider);
+ provider = new ParameterLabelProvider(index);
+ break;
+ default:
+ throw new IllegalStateException(
+ "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
+ }
+ col.setEditingSupport(support);
+ col.setLabelProvider(provider);
+ col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
+ }
+
+ private TableViewerColumn createTableViewerColumn(String title, String... longestPossibleContents)
+ {
+ TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
+ TableColumn column = viewerColumn.getColumn();
+ int maxWidth = 0;
+ for (String s : longestPossibleContents)
+ {
+ column.setText(s);
+ column.pack();
+ if (column.getWidth() > maxWidth)
+ maxWidth = column.getWidth();
+ }
+ column.setText(title);
+ column.pack();
+ if (column.getWidth() < maxWidth)
+ column.setWidth(maxWidth);
+ column.setResizable(true);
+ column.setMoveable(false);
+ return viewerColumn;
+ }
+
+ public LazyTableViewer getTableViewer()
+ {
+ return viewer;
+ }
+
+ public MicroInstructionMemory getMicroInstructionMemory()
+ {
+ return memory;
+ }
+
+ public void setContentProvider(InstructionTableContentProvider provider)
+ {
+ this.provider = provider;
+ viewer.setContentProvider(provider);
+ }
+
+ private void setViewerInput(MicroInstructionMemory memory)
+ {
+ deleteColumns();
+ viewer.setInput(memory);
+ createColumns();
+ }
+
+ public void refresh()
+ {
+ Display.getDefault().asyncExec(() -> viewer.refresh());
+ }
+}