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