plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/InstructionTable.java

   1 package net.mograsim.plugin.tables.mi;
   2
   3 import java.util.Arrays;
   4
   5 import org.eclipse.jface.viewers.ColumnLabelProvider;
   6 import org.eclipse.jface.viewers.ColumnViewerEditor;
   7 import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
   8 import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
   9 import org.eclipse.jface.viewers.EditingSupport;
  10 import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
  11 import org.eclipse.jface.viewers.TableViewerColumn;
  12 import org.eclipse.jface.viewers.TableViewerEditor;
  13 import org.eclipse.jface.viewers.TableViewerFocusCellManager;
  14 import org.eclipse.swt.SWT;
  15 import org.eclipse.swt.layout.GridData;
  16 import org.eclipse.swt.widgets.Composite;
  17 import org.eclipse.swt.widgets.Display;
  18 import org.eclipse.swt.widgets.Table;
  19 import org.eclipse.swt.widgets.TableColumn;
  20
  21 import net.mograsim.machine.mi.MicroInstructionDefinition;
  22 import net.mograsim.machine.mi.MicroInstructionMemory;
  23 import net.mograsim.machine.mi.parameters.MnemonicFamily;
  24 import net.mograsim.machine.mi.parameters.ParameterClassification;
  25 import net.mograsim.plugin.tables.AddressLabelProvider;
  26 import net.mograsim.plugin.tables.DisplaySettings;
  27 import net.mograsim.plugin.tables.LazyTableViewer;
  28
  29 public class InstructionTable
  30 {
  31         protected DisplaySettings displaySettings;
  32         protected LazyTableViewer viewer;
  33         private TableViewerColumn[] columns = new TableViewerColumn[0];
  34         private MicroInstructionDefinition miDef;
  35         private MicroInstructionMemory memory;
  36         private InstructionTableContentProvider provider;
  37
  38         public InstructionTable(Composite parent, DisplaySettings displaySettings)
  39         {
  40                 viewer = new LazyTableViewer(parent, SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
  41                 this.displaySettings = displaySettings;
  42
  43                 Table table = viewer.getTable();
  44                 table.setHeaderVisible(true);
  45                 table.setLinesVisible(true);
  46                 viewer.setUseHashlookup(true);
  47
  48                 TableViewerFocusCellManager focusCellManager = new TableViewerFocusCellManager(viewer, new FocusCellOwnerDrawHighlighter(viewer));
  49
  50                 ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(viewer)
  51                 {
  52                         @Override
  53                         protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event)
  54                         {
  55                                 return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
  56                                                 || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
  57                                                 || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
  58                                                 || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
  59                         }
  60                 };
  61                 int features = ColumnViewerEditor.TABBING_HORIZONTAL | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
  62                                 | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION;
  63                 TableViewerEditor.create(viewer, focusCellManager, actSupport, features);
  64
  65                 GridData viewerData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
  66                 viewerData.horizontalSpan = 3;
  67                 viewer.getTable().setLayoutData(viewerData);
  68
  69                 displaySettings.addObserver(() -> viewer.refresh());
  70         }
  71
  72         private void deleteColumns()
  73         {
  74                 for (TableViewerColumn col : columns)
  75                         col.getColumn().dispose();
  76         }
  77
  78         private void createColumns()
  79         {
  80                 int size = miDef.size();
  81                 columns = new TableViewerColumn[size + 1];
  82
  83                 TableViewerColumn col = createTableViewerColumn("Address");
  84                 columns[0] = col;
  85                 col.setLabelProvider(new AddressLabelProvider());
  86
  87                 String[] columnTitles = new String[size];
  88
  89                 int bit = miDef.sizeInBits();
  90                 ParameterClassification[] classes = miDef.getParameterClassifications();
  91
  92                 for (int i = 0; i < size; i++)
  93                 {
  94                         int startBit = bit - 1;
  95                         int endBit = bit = bit - classes[i].getExpectedBits();
  96                         String columnTitle = calculateColumnTitle(startBit, endBit);
  97                         columnTitles[i] = columnTitle;
  98                         col = createTableViewerColumn(columnTitle);
  99                         columns[i + 1] = col;
 100                         createEditingAndLabel(col, miDef, i);
 101                 }
 102
 103                 calculateOptimalColumnSize(0, "Address", generateLongestHexStrings(12));
 104
 105                 for (int i = 0; i < size; i++)
 106                 {
 107                         String[] longestPossibleContents;
 108                         switch (classes[i].getExpectedType())
 109                         {
 110                         case INTEGER_IMMEDIATE:
 111                                 longestPossibleContents = generateLongestHexStrings(classes[i].getExpectedBits());
 112                                 break;
 113                         case BOOLEAN_IMMEDIATE:
 114                         case MNEMONIC:
 115                                 longestPossibleContents = ((MnemonicFamily) classes[i]).getStringValues();
 116                                 break;
 117                         default:
 118                                 longestPossibleContents = new String[0];
 119                                 break;
 120                         }
 121                         calculateOptimalColumnSize(i + 1, columnTitles[i], longestPossibleContents);
 122                 }
 123         }
 124
 125         private static String calculateColumnTitle(int startBit, int endBit)
 126         {
 127                 return startBit == endBit ? Integer.toString(startBit) : startBit + "..." + endBit;
 128         }
 129
 130         public void bindMicroInstructionMemory(MicroInstructionMemory memory)
 131         {
 132                 this.memory = memory;
 133                 if (memory != null)
 134                 {
 135                         this.miDef = memory.getDefinition().getMicroInstructionDefinition();
 136                         setViewerInput(memory);
 137                 }
 138         }
 139
 140         private static final String[] HEX_DIGITS = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
 141
 142         private static String[] generateLongestHexStrings(int bitWidth)
 143         {
 144                 return Arrays.stream(HEX_DIGITS).map(s -> "0x" + s.repeat((bitWidth + 3) / 4)).toArray(String[]::new);
 145         }
 146
 147         private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
 148         {
 149                 ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
 150                 EditingSupport support;
 151                 ColumnLabelProvider provider;
 152                 switch (parameterClassification.getExpectedType())
 153                 {
 154                 case BOOLEAN_IMMEDIATE:
 155                         support = new BooleanEditingSupport(viewer, miDef, index);
 156                         provider = new ParameterLabelProvider(index);
 157                         break;
 158                 case INTEGER_IMMEDIATE:
 159                         support = new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider);
 160                         provider = new IntegerColumnLabelProvider(displaySettings, index);
 161                         break;
 162                 case MNEMONIC:
 163                         support = new MnemonicEditingSupport(viewer, miDef, index, this.provider);
 164                         provider = new ParameterLabelProvider(index);
 165                         break;
 166                 default:
 167                         throw new IllegalStateException(
 168                                         "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
 169                 }
 170                 col.setEditingSupport(support);
 171                 col.setLabelProvider(provider);
 172                 col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
 173         }
 174
 175         private TableViewerColumn createTableViewerColumn(String title)
 176         {
 177                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 178                 TableColumn column = viewerColumn.getColumn();
 179                 column.setText(title);
 180                 column.setResizable(true);
 181                 column.setMoveable(false);
 182                 return viewerColumn;
 183         }
 184
 185         private void calculateOptimalColumnSize(int i, String title, String... longestPossibleContents)
 186         {
 187                 TableColumn column = viewer.getTable().getColumn(i);
 188                 int maxWidth = 0;
 189                 for (String s : longestPossibleContents)
 190                 {
 191                         column.setText(s);
 192                         column.pack();
 193                         if (column.getWidth() > maxWidth)
 194                                 maxWidth = column.getWidth();
 195                 }
 196                 column.setText(title);
 197                 column.pack();
 198                 if (column.getWidth() < maxWidth)
 199                         column.setWidth(maxWidth);
 200         }
 201
 202         public LazyTableViewer getTableViewer()
 203         {
 204                 return viewer;
 205         }
 206
 207         public MicroInstructionMemory getMicroInstructionMemory()
 208         {
 209                 return memory;
 210         }
 211
 212         public void setContentProvider(InstructionTableContentProvider provider)
 213         {
 214                 this.provider = provider;
 215                 viewer.setContentProvider(provider);
 216         }
 217
 218         private void setViewerInput(MicroInstructionMemory memory)
 219         {
 220                 deleteColumns();
 221                 viewer.setInput(memory);
 222                 createColumns();
 223         }
 224
 225         public void refresh()
 226         {
 227                 Display.getDefault().asyncExec(() -> viewer.refresh());
 228         }
 229 }