plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/InstructionView.java

   1 package net.mograsim.plugin.tables.mi;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5 import java.util.Arrays;
   6 import java.util.Optional;
   7
   8 import org.eclipse.jface.viewers.ColumnLabelProvider;
   9 import org.eclipse.jface.viewers.EditingSupport;
  10 import org.eclipse.jface.viewers.TableViewerColumn;
  11 import org.eclipse.swt.SWT;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.layout.GridLayout;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.FileDialog;
  16 import org.eclipse.swt.widgets.Table;
  17 import org.eclipse.swt.widgets.TableColumn;
  18 import org.eclipse.ui.part.ViewPart;
  19
  20 import net.mograsim.machine.Machine;
  21 import net.mograsim.machine.mi.MicroInstructionDefinition;
  22 import net.mograsim.machine.mi.MicroInstructionMemory;
  23 import net.mograsim.machine.mi.MicroInstructionMemoryParseException;
  24 import net.mograsim.machine.mi.MicroInstructionMemoryParser;
  25 import net.mograsim.machine.mi.parameters.MnemonicFamily;
  26 import net.mograsim.machine.mi.parameters.ParameterClassification;
  27 import net.mograsim.plugin.MachineContext;
  28 import net.mograsim.plugin.MachineContext.ContextObserver;
  29 import net.mograsim.plugin.tables.AddressLabelProvider;
  30 import net.mograsim.plugin.tables.DisplaySettings;
  31 import net.mograsim.plugin.tables.LazyTableViewer;
  32 import net.mograsim.plugin.tables.RadixSelector;
  33 import net.mograsim.plugin.util.DropDownMenu;
  34 import net.mograsim.plugin.util.DropDownMenu.DropDownEntry;
  35
  36 public class InstructionView extends ViewPart implements ContextObserver
  37 {
  38         private String saveLoc = null;
  39         private LazyTableViewer viewer;
  40         private TableViewerColumn[] columns = new TableViewerColumn[0];
  41         private MicroInstructionDefinition miDef;
  42         private MicroInstructionMemory memory;
  43         private DisplaySettings displaySettings;
  44         private InstructionTableContentProvider provider;
  45         private int highlighted = 0;
  46
  47         @SuppressWarnings("unused")
  48         @Override
  49         public void createPartControl(Composite parent)
  50         {
  51                 provider = new InstructionTableContentProvider();
  52                 GridLayout layout = new GridLayout(3, false);
  53                 setupMenuButtons(parent);
  54
  55                 displaySettings = new DisplaySettings();
  56                 new RadixSelector(parent, displaySettings);
  57
  58                 parent.setLayout(layout);
  59                 viewer = new LazyTableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
  60
  61                 Table table = viewer.getTable();
  62                 table.setHeaderVisible(true);
  63                 table.setLinesVisible(true);
  64                 viewer.setUseHashlookup(true);
  65                 viewer.setContentProvider(provider);
  66                 getSite().setSelectionProvider(viewer);
  67
  68                 GridData viewerData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
  69                 viewerData.horizontalSpan = 3;
  70                 viewer.getTable().setLayoutData(viewerData);
  71
  72                 displaySettings.addObserver(() -> viewer.refresh());
  73                 MachineContext.getInstance().registerObserver(this);
  74                 setMachine(Optional.ofNullable(MachineContext.getInstance().getMachine()));
  75         }
  76
  77         public void highlight(int index)
  78         {
  79                 viewer.highlightRow(highlighted, false);
  80                 viewer.highlightRow(index, true);
  81                 viewer.getTable().setTopIndex(index);
  82         }
  83
  84         @SuppressWarnings("unused")
  85         private void setupMenuButtons(Composite parent)
  86         {
  87                 DropDownEntry open = new DropDownEntry("Open", (e) ->
  88                 {
  89                         FileDialog d = new FileDialog(parent.getShell(), SWT.NONE);
  90                         d.open();
  91                         String filename = d.getFileName();
  92                         if (!filename.equals(""))
  93                                 open(d.getFilterPath() + File.separator + filename);
  94                 });
  95
  96                 DropDownEntry save = new DropDownEntry("Save", (e) ->
  97                 {
  98                         if (saveLoc == null)
  99                                 openSaveAsDialog(parent);
 100                         save(saveLoc);
 101                 });
 102                 DropDownEntry saveAs = new DropDownEntry("SaveAs", (e) ->
 103                 {
 104                         openSaveAsDialog(parent);
 105                         save(saveLoc);
 106                 });
 107                 new DropDownMenu(parent, "File", open, save, saveAs);
 108         }
 109
 110         private void openSaveAsDialog(Composite parent)
 111         {
 112                 FileDialog d = new FileDialog(parent.getShell(), SWT.SAVE);
 113                 d.open();
 114                 String filename = d.getFileName();
 115                 if (!filename.equals(""))
 116                         saveLoc = d.getFilterPath() + File.separator + filename;
 117         }
 118
 119         public void bindMicroInstructionMemory(MicroInstructionMemory memory)
 120         {
 121                 deleteColumns();
 122                 this.memory = memory;
 123                 viewer.setInput(memory);
 124                 this.miDef = memory.getDefinition().getMicroInstructionDefinition();
 125                 createColumns();
 126         }
 127
 128         private void deleteColumns()
 129         {
 130                 for (TableViewerColumn col : columns)
 131                         col.getColumn().dispose();
 132         }
 133
 134         private void createColumns()
 135         {
 136                 int size = miDef.size();
 137                 columns = new TableViewerColumn[size + 1];
 138
 139                 TableViewerColumn col = createTableViewerColumn("Address", generateLongestHexStrings(12));
 140                 columns[0] = col;
 141                 col.setLabelProvider(new AddressLabelProvider());
 142
 143                 int bit = miDef.sizeInBits();
 144                 ParameterClassification[] classes = miDef.getParameterClassifications();
 145
 146                 for (int i = 0; i < size; i++)
 147                 {
 148                         int startBit = bit - 1;
 149                         int endBit = bit = bit - classes[i].getExpectedBits();
 150                         String name = startBit == endBit ? Integer.toString(startBit) : startBit + "..." + endBit;
 151
 152                         String[] longestPossibleContents;
 153                         switch (classes[i].getExpectedType())
 154                         {
 155                         case INTEGER_IMMEDIATE:
 156                                 longestPossibleContents = generateLongestHexStrings(classes[i].getExpectedBits());
 157                                 break;
 158                         case BOOLEAN_IMMEDIATE:
 159                         case MNEMONIC:
 160                                 longestPossibleContents = ((MnemonicFamily) classes[i]).getStringValues();
 161                                 break;
 162                         default:
 163                                 longestPossibleContents = new String[0];
 164                                 break;
 165                         }
 166
 167                         col = createTableViewerColumn(name, longestPossibleContents);
 168                         columns[i + 1] = col;
 169                         createEditingAndLabel(col, miDef, i);
 170                 }
 171         }
 172
 173         private static final String[] HEX_DIGITS = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };
 174
 175         private static String[] generateLongestHexStrings(int bitWidth)
 176         {
 177                 return Arrays.stream(HEX_DIGITS).map(s -> "0x" + s.repeat((bitWidth + 3) / 4)).toArray(String[]::new);
 178         }
 179
 180         private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
 181         {
 182                 ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
 183                 EditingSupport support;
 184                 ColumnLabelProvider provider;
 185                 switch (parameterClassification.getExpectedType())
 186                 {
 187                 case BOOLEAN_IMMEDIATE:
 188                         support = new BooleanEditingSupport(viewer, miDef, index);
 189                         provider = new ParameterLabelProvider(index);
 190                         break;
 191                 case INTEGER_IMMEDIATE:
 192                         support = new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider);
 193                         provider = new IntegerColumnLabelProvider(displaySettings, index);
 194                         break;
 195                 case MNEMONIC:
 196                         support = new MnemonicEditingSupport(viewer, miDef, index, this.provider);
 197                         provider = new ParameterLabelProvider(index);
 198                         break;
 199                 default:
 200                         throw new IllegalStateException(
 201                                         "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
 202                 }
 203                 col.setEditingSupport(support);
 204                 col.setLabelProvider(provider);
 205                 col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
 206         }
 207
 208         private TableViewerColumn createTableViewerColumn(String title, String... longestPossibleContents)
 209         {
 210                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 211                 TableColumn column = viewerColumn.getColumn();
 212                 int maxWidth = 0;
 213                 for (String s : longestPossibleContents)
 214                 {
 215                         column.setText(s);
 216                         column.pack();
 217                         if (column.getWidth() > maxWidth)
 218                                 maxWidth = column.getWidth();
 219                 }
 220                 column.setText(title);
 221                 column.pack();
 222                 if (column.getWidth() < maxWidth)
 223                         column.setWidth(maxWidth);
 224                 column.setResizable(true);
 225                 column.setMoveable(false);
 226                 return viewerColumn;
 227         }
 228
 229         private void open(String file)
 230         {
 231                 if (miDef == null)
 232                 {
 233                         System.err.println("Failed to parse MicroprogrammingMemory from File. No MicroInstructionDefinition assigned.");
 234                         return;
 235                 }
 236                 try
 237                 {
 238                         MicroInstructionMemoryParser.parseMemory(memory, file);
 239                         viewer.refresh();
 240                         saveLoc = file;
 241                 }
 242                 catch (IOException | MicroInstructionMemoryParseException e)
 243                 {
 244                         e.printStackTrace();
 245                 }
 246         }
 247
 248         private void save(String file)
 249         {
 250                 if (memory == null)
 251                 {
 252                         System.err.println("Failed to write MicroprogrammingMemory to File. No MicroprogrammingMemory assigned.");
 253                 }
 254                 if (saveLoc != null)
 255                 {
 256                         try
 257                         {
 258                                 MicroInstructionMemoryParser.write(memory, file);
 259                         }
 260                         catch (IOException e)
 261                         {
 262                                 e.printStackTrace();
 263                         }
 264                 }
 265         }
 266
 267         @Override
 268         public void setFocus()
 269         {
 270                 viewer.getControl().setFocus();
 271         }
 272
 273         @Override
 274         public void setMachine(Optional<Machine> machine)
 275         {
 276                 if (machine.isPresent())
 277                 {
 278                         Machine actualMachine = machine.get();
 279                         bindMicroInstructionMemory(actualMachine.getMicroInstructionMemory());
 280                 }
 281         }
 282 }