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                 viewer.getTable().setVisible(false);
  81
  82                 int size = miDef.size();
  83                 columns = new TableViewerColumn[size + 1];
  84
  85                 TableViewerColumn col = createTableViewerColumn("Address");
  86                 columns[0] = col;
  87                 col.setLabelProvider(new AddressLabelProvider());
  88
  89                 String[] columnTitles = new String[size];
  90
  91                 int bit = miDef.sizeInBits();
  92                 ParameterClassification[] classes = miDef.getParameterClassifications();
  93
  94                 for (int i = 0; i < size; i++)
  95                 {
  96                         int startBit = bit - 1;
  97                         int endBit = bit = bit - classes[i].getExpectedBits();
  98                         String columnTitle = calculateColumnTitle(startBit, endBit);
  99                         columnTitles[i] = columnTitle;
 100                         col = createTableViewerColumn(columnTitle);
 101                         columns[i + 1] = col;
 102                         createEditingAndLabel(col, miDef, i);
 103                 }
 104
 105                 calculateOptimalColumnSize(0, "Address", generateLongestHexStrings(12));
 106
 107                 for (int i = 0; i < size; i++)
 108                 {
 109                         String[] longestPossibleContents;
 110                         switch (classes[i].getExpectedType())
 111                         {
 112                         case INTEGER_IMMEDIATE:
 113                                 longestPossibleContents = generateLongestHexStrings(classes[i].getExpectedBits());
 114                                 break;
 115                         case BOOLEAN_IMMEDIATE:
 116                         case MNEMONIC:
 117                                 longestPossibleContents = ((MnemonicFamily) classes[i]).getStringValues();
 118                                 break;
 119                         default:
 120                                 longestPossibleContents = new String[0];
 121                                 break;
 122                         }
 123                         calculateOptimalColumnSize(i + 1, columnTitles[i], longestPossibleContents);
 124                 }
 125
 126                 viewer.getTable().setVisible(true);
 127         }
 128
 129         private static String calculateColumnTitle(int startBit, int endBit)
 130         {
 131                 return startBit == endBit ? Integer.toString(startBit) : startBit + "..." + endBit;
 132         }
 133
 134         public void bindMicroInstructionMemory(MicroInstructionMemory memory)
 135         {
 136                 this.memory = memory;
 137                 if (memory != null)
 138                 {
 139                         this.miDef = memory.getDefinition().getMicroInstructionDefinition();
 140                         setViewerInput(memory);
 141                 }
 142         }
 143
 144         private static final String[] HEX_DIGITS = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
 145
 146         private static String[] generateLongestHexStrings(int bitWidth)
 147         {
 148                 return Arrays.stream(HEX_DIGITS).map(s -> "0x" + s.repeat((bitWidth + 3) / 4)).toArray(String[]::new);
 149         }
 150
 151         private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
 152         {
 153                 ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
 154                 EditingSupport support;
 155                 ColumnLabelProvider provider;
 156                 switch (parameterClassification.getExpectedType())
 157                 {
 158                 case BOOLEAN_IMMEDIATE:
 159                         support = new BooleanEditingSupport(viewer, miDef, index);
 160                         provider = new ParameterLabelProvider(index);
 161                         break;
 162                 case INTEGER_IMMEDIATE:
 163                         support = new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider);
 164                         provider = new IntegerColumnLabelProvider(displaySettings, index);
 165                         break;
 166                 case MNEMONIC:
 167                         support = new MnemonicEditingSupport(viewer, miDef, index, this.provider);
 168                         provider = new ParameterLabelProvider(index);
 169                         break;
 170                 default:
 171                         throw new IllegalStateException(
 172                                         "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
 173                 }
 174                 col.setEditingSupport(support);
 175                 col.setLabelProvider(provider);
 176                 col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
 177         }
 178
 179         private TableViewerColumn createTableViewerColumn(String title)
 180         {
 181                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 182                 TableColumn column = viewerColumn.getColumn();
 183                 column.setText(title);
 184                 column.setResizable(true);
 185                 column.setMoveable(false);
 186                 return viewerColumn;
 187         }
 188
 189         private void calculateOptimalColumnSize(int i, String title, String... longestPossibleContents)
 190         {
 191                 TableColumn column = viewer.getTable().getColumn(i);
 192                 int maxWidth = 0;
 193                 for (String s : longestPossibleContents)
 194                 {
 195                         column.setText(s);
 196                         column.pack();
 197                         if (column.getWidth() > maxWidth)
 198                                 maxWidth = column.getWidth();
 199                 }
 200                 column.setText(title);
 201                 column.pack();
 202                 if (column.getWidth() < maxWidth)
 203                         column.setWidth(maxWidth);
 204         }
 205
 206         public LazyTableViewer getTableViewer()
 207         {
 208                 return viewer;
 209         }
 210
 211         public MicroInstructionMemory getMicroInstructionMemory()
 212         {
 213                 return memory;
 214         }
 215
 216         public void setContentProvider(InstructionTableContentProvider provider)
 217         {
 218                 this.provider = provider;
 219                 viewer.setContentProvider(provider);
 220         }
 221
 222         private void setViewerInput(MicroInstructionMemory memory)
 223         {
 224                 deleteColumns();
 225                 viewer.setInput(memory);
 226                 createColumns();
 227         }
 228
 229         public void refresh()
 230         {
 231                 Display.getDefault().asyncExec(() -> viewer.refresh());
 232         }
 233 }