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