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                 this.miDef = memory.getDefinition().getMicroInstructionDefinition();
  98                 setViewerInput(memory);
  99         }
 100
 101         private static final String[] HEX_DIGITS = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
 102
 103         private static String[] generateLongestHexStrings(int bitWidth)
 104         {
 105                 return Arrays.stream(HEX_DIGITS).map(s -> "0x" + s.repeat((bitWidth + 3) / 4)).toArray(String[]::new);
 106         }
 107
 108         private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
 109         {
 110                 ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
 111                 EditingSupport support;
 112                 ColumnLabelProvider provider;
 113                 switch (parameterClassification.getExpectedType())
 114                 {
 115                 case BOOLEAN_IMMEDIATE:
 116                         support = new BooleanEditingSupport(viewer, miDef, index);
 117                         provider = new ParameterLabelProvider(index);
 118                         break;
 119                 case INTEGER_IMMEDIATE:
 120                         support = new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider);
 121                         provider = new IntegerColumnLabelProvider(displaySettings, index);
 122                         break;
 123                 case MNEMONIC:
 124                         support = new MnemonicEditingSupport(viewer, miDef, index, this.provider);
 125                         provider = new ParameterLabelProvider(index);
 126                         break;
 127                 default:
 128                         throw new IllegalStateException(
 129                                         "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
 130                 }
 131                 col.setEditingSupport(support);
 132                 col.setLabelProvider(provider);
 133                 col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
 134         }
 135
 136         private TableViewerColumn createTableViewerColumn(String title, String... longestPossibleContents)
 137         {
 138                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 139                 TableColumn column = viewerColumn.getColumn();
 140                 int maxWidth = 0;
 141                 for (String s : longestPossibleContents)
 142                 {
 143                         column.setText(s);
 144                         column.pack();
 145                         if (column.getWidth() > maxWidth)
 146                                 maxWidth = column.getWidth();
 147                 }
 148                 column.setText(title);
 149                 column.pack();
 150                 if (column.getWidth() < maxWidth)
 151                         column.setWidth(maxWidth);
 152                 column.setResizable(true);
 153                 column.setMoveable(false);
 154                 return viewerColumn;
 155         }
 156
 157         public LazyTableViewer getTableViewer()
 158         {
 159                 return viewer;
 160         }
 161
 162         public MicroInstructionMemory getMicroInstructionMemory()
 163         {
 164                 return memory;
 165         }
 166
 167         public void setContentProvider(InstructionTableContentProvider provider)
 168         {
 169                 this.provider = provider;
 170                 viewer.setContentProvider(provider);
 171         }
 172
 173         private void setViewerInput(MicroInstructionMemory memory)
 174         {
 175                 deleteColumns();
 176                 viewer.setInput(memory);
 177                 createColumns();
 178         }
 179
 180         public void refresh()
 181         {
 182                 Display.getDefault().asyncExec(() -> viewer.refresh());
 183         }
 184 }