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