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.graphics.Color;
  16 import org.eclipse.swt.graphics.Font;
  17 import org.eclipse.swt.layout.GridData;
  18 import org.eclipse.swt.widgets.Composite;
  19 import org.eclipse.swt.widgets.Display;
  20 import org.eclipse.swt.widgets.Table;
  21 import org.eclipse.swt.widgets.TableColumn;
  22 import org.eclipse.ui.themes.IThemeManager;
  23
  24 import net.mograsim.machine.mi.MicroInstructionDefinition;
  25 import net.mograsim.machine.mi.MicroInstructionMemory;
  26 import net.mograsim.machine.mi.parameters.MnemonicFamily;
  27 import net.mograsim.machine.mi.parameters.ParameterClassification;
  28 import net.mograsim.plugin.tables.AddressLabelProvider;
  29 import net.mograsim.plugin.tables.DisplaySettings;
  30 import net.mograsim.plugin.tables.LazyTableViewer;
  31
  32 public class InstructionTable
  33 {
  34         protected final DisplaySettings displaySettings;
  35         protected final LazyTableViewer viewer;
  36         private TableViewerColumn[] columns = new TableViewerColumn[0];
  37         private MicroInstructionDefinition miDef;
  38         private MicroInstructionMemory memory;
  39         private InstructionTableContentProvider provider;
  40         private final RowHighlighter highlighter;
  41         private final FontAndColorHelper cProv;
  42
  43         private final boolean isEditable;
  44
  45         public InstructionTable(Composite parent, DisplaySettings displaySettings, IThemeManager themeManager)
  46         {
  47                 this(parent, displaySettings, themeManager, true);
  48         }
  49
  50         public InstructionTable(Composite parent, DisplaySettings displaySettings, IThemeManager themeManager, boolean allowEditing)
  51         {
  52                 viewer = new LazyTableViewer(parent, SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
  53                 this.displaySettings = displaySettings;
  54                 this.cProv = new FontAndColorHelper(viewer, themeManager);
  55                 this.highlighter = new RowHighlighter(viewer, cProv);
  56                 this.isEditable = allowEditing;
  57
  58                 Table table = viewer.getTable();
  59                 table.setHeaderVisible(true);
  60                 table.setLinesVisible(true);
  61                 viewer.setUseHashlookup(true);
  62                 table.addDisposeListener(e -> dispose());
  63
  64                 TableViewerFocusCellManager focusCellManager = new TableViewerFocusCellManager(viewer, new FocusCellOwnerDrawHighlighter(viewer));
  65
  66                 ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(viewer)
  67                 {
  68                         @Override
  69                         protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event)
  70                         {
  71                                 return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
  72                                                 || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
  73                                                 || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
  74                                                 || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
  75                         }
  76                 };
  77                 int features = ColumnViewerEditor.TABBING_HORIZONTAL | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
  78                                 | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION;
  79                 TableViewerEditor.create(viewer, focusCellManager, actSupport, features);
  80
  81                 GridData viewerData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
  82                 viewerData.horizontalSpan = 3;
  83                 viewer.getTable().setLayoutData(viewerData);
  84
  85                 displaySettings.addObserver(() -> viewer.refresh());
  86         }
  87
  88         private void deleteColumns()
  89         {
  90                 for (TableViewerColumn col : columns)
  91                         col.getColumn().dispose();
  92         }
  93
  94         private void createColumns()
  95         {
  96                 viewer.getTable().setVisible(false);
  97
  98                 int size = miDef.size();
  99                 columns = new TableViewerColumn[size + 1];
 100
 101                 TableViewerColumn col = createTableViewerColumn("Address");
 102                 columns[0] = col;
 103                 col.setLabelProvider(new AddressLabelProvider()
 104                 {
 105                         @Override
 106                         public Color getBackground(Object element)
 107                         {
 108                                 return cProv.getBackground(element, -1);
 109                         }
 110
 111                         @Override
 112                         public Color getForeground(Object element)
 113                         {
 114                                 return cProv.getForeground(element, -1);
 115                         }
 116
 117                         @Override
 118                         public Font getFont(Object element)
 119                         {
 120                                 return cProv.getFont(element, -1);
 121                         }
 122                 });
 123
 124                 String[] columnTitles = new String[size];
 125
 126                 int bit = miDef.sizeInBits();
 127                 ParameterClassification[] classes = miDef.getParameterClassifications();
 128
 129                 for (int i = 0; i < size; i++)
 130                 {
 131                         int startBit = bit - 1;
 132                         int endBit = bit = bit - classes[i].getExpectedBits();
 133                         String columnTitle = calculateColumnTitle(startBit, endBit);
 134                         columnTitles[i] = columnTitle;
 135                         col = createTableViewerColumn(columnTitle);
 136                         columns[i + 1] = col;
 137                         createEditingAndLabel(col, miDef, i);
 138                 }
 139
 140                 calculateOptimalColumnSize(0, "Address", generateLongestHexStrings(12));
 141
 142                 for (int i = 0; i < size; i++)
 143                 {
 144                         String[] longestPossibleContents;
 145                         switch (classes[i].getExpectedType())
 146                         {
 147                         case INTEGER_IMMEDIATE:
 148                                 longestPossibleContents = generateLongestHexStrings(classes[i].getExpectedBits());
 149                                 break;
 150                         case BOOLEAN_IMMEDIATE:
 151                         case MNEMONIC:
 152                                 longestPossibleContents = ((MnemonicFamily) classes[i]).getStringValues();
 153                                 break;
 154                         default:
 155                                 longestPossibleContents = new String[0];
 156                                 break;
 157                         }
 158                         calculateOptimalColumnSize(i + 1, columnTitles[i], longestPossibleContents);
 159                 }
 160
 161                 viewer.getTable().setVisible(true);
 162         }
 163
 164         private static String calculateColumnTitle(int startBit, int endBit)
 165         {
 166                 return startBit == endBit ? Integer.toString(startBit) : startBit + "..." + endBit;
 167         }
 168
 169         public void bindMicroInstructionMemory(MicroInstructionMemory memory)
 170         {
 171                 this.memory = memory;
 172                 if (memory != null)
 173                 {
 174                         this.miDef = memory.getDefinition().getMicroInstructionDefinition();
 175                         setViewerInput(memory);
 176                 }
 177         }
 178
 179         private static final String[] HEX_DIGITS = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
 180
 181         private static String[] generateLongestHexStrings(int bitWidth)
 182         {
 183                 return Arrays.stream(HEX_DIGITS).map(s -> "0x" + s.repeat((bitWidth + 3) / 4)).toArray(String[]::new);
 184         }
 185
 186         private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
 187         {
 188                 ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
 189                 EditingSupport support;
 190                 ColumnLabelProvider provider;
 191                 switch (parameterClassification.getExpectedType())
 192                 {
 193                 case BOOLEAN_IMMEDIATE:
 194                         support = isEditable ? new BooleanEditingSupport(viewer, miDef, index) : null;
 195                         provider = new ParameterLabelProvider(cProv, index);
 196                         break;
 197                 case INTEGER_IMMEDIATE:
 198                         support = isEditable ? new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider) : null;
 199                         provider = new IntegerColumnLabelProvider(displaySettings, cProv, index);
 200                         break;
 201                 case MNEMONIC:
 202                         support = isEditable ? new MnemonicEditingSupport(viewer, miDef, index, this.provider) : null;
 203                         provider = new ParameterLabelProvider(cProv, index);
 204                         break;
 205                 default:
 206                         throw new IllegalStateException(
 207                                         "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
 208                 }
 209                 if (isEditable)
 210                         col.setEditingSupport(support);
 211                 col.setLabelProvider(provider);
 212                 col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
 213         }
 214
 215         private TableViewerColumn createTableViewerColumn(String title)
 216         {
 217                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 218                 TableColumn column = viewerColumn.getColumn();
 219                 column.setText(title);
 220                 column.setResizable(true);
 221                 column.setMoveable(false);
 222                 return viewerColumn;
 223         }
 224
 225         private void calculateOptimalColumnSize(int i, String title, String... longestPossibleContents)
 226         {
 227                 TableColumn column = viewer.getTable().getColumn(i);
 228                 int maxWidth = 0;
 229                 for (String s : longestPossibleContents)
 230                 {
 231                         column.setText(s);
 232                         column.pack();
 233                         if (column.getWidth() > maxWidth)
 234                                 maxWidth = column.getWidth();
 235                 }
 236                 column.setText(title);
 237                 column.pack();
 238                 if (column.getWidth() < maxWidth)
 239                         column.setWidth(maxWidth);
 240         }
 241
 242         public LazyTableViewer getTableViewer()
 243         {
 244                 return viewer;
 245         }
 246
 247         public MicroInstructionMemory getMicroInstructionMemory()
 248         {
 249                 return memory;
 250         }
 251
 252         public void setContentProvider(InstructionTableContentProvider provider)
 253         {
 254                 this.provider = provider;
 255                 viewer.setContentProvider(provider);
 256         }
 257
 258         private void setViewerInput(MicroInstructionMemory memory)
 259         {
 260                 deleteColumns();
 261                 viewer.setInput(memory);
 262                 createColumns();
 263         }
 264
 265         public void refresh()
 266         {
 267                 Display.getDefault().asyncExec(() -> viewer.refresh());
 268         }
 269
 270         private void dispose()
 271         {
 272                 cProv.dispose();
 273                 viewer.getTable().dispose();
 274         }
 275
 276         public void highlight(int row)
 277         {
 278                 highlighter.highlight(row);
 279         }
 280 }