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         }
  73
  74         public void highlight(int index)
  75         {
  76                 viewer.highlightRow(highlighted, false);
  77                 viewer.highlightRow(index, true);
  78                 viewer.getTable().setTopIndex(index);
  79         }
  80
  81         @SuppressWarnings("unused")
  82         private void setupMenuButtons(Composite parent)
  83         {
  84                 DropDownEntry open = new DropDownEntry("Open", (e) ->
  85                 {
  86                         FileDialog d = new FileDialog(parent.getShell(), SWT.NONE);
  87                         d.open();
  88                         String filename = d.getFileName();
  89                         if (!filename.equals(""))
  90                                 open(d.getFilterPath() + File.separator + filename);
  91                 });
  92
  93                 DropDownEntry save = new DropDownEntry("Save", (e) ->
  94                 {
  95                         if (saveLoc == null)
  96                                 openSaveAsDialog(parent);
  97                         save(saveLoc);
  98                 });
  99                 DropDownEntry saveAs = new DropDownEntry("SaveAs", (e) ->
 100                 {
 101                         openSaveAsDialog(parent);
 102                         save(saveLoc);
 103                 });
 104                 new DropDownMenu(parent, "File", open, save, saveAs);
 105         }
 106
 107         private void openSaveAsDialog(Composite parent)
 108         {
 109                 FileDialog d = new FileDialog(parent.getShell(), SWT.SAVE);
 110                 d.open();
 111                 String filename = d.getFileName();
 112                 if (!filename.equals(""))
 113                         saveLoc = d.getFilterPath() + File.separator + filename;
 114         }
 115
 116         public void bindMicroInstructionMemory(MicroInstructionMemory memory)
 117         {
 118                 deleteColumns();
 119                 this.memory = memory;
 120                 viewer.setInput(memory);
 121                 this.miDef = memory.getDefinition().getMicroInstructionDefinition();
 122                 createColumns();
 123         }
 124
 125         private void deleteColumns()
 126         {
 127                 for (TableViewerColumn col : columns)
 128                         col.getColumn().dispose();
 129         }
 130
 131         private void createColumns()
 132         {
 133                 TableViewerColumn col = createTableViewerColumn("Address", 200);
 134                 col.setLabelProvider(new AddressLabelProvider());
 135
 136                 int size = miDef.size();
 137                 int bit = 0;
 138                 columns = new TableViewerColumn[size];
 139                 ParameterClassification[] classes = miDef.getParameterClassifications();
 140
 141                 for (int i = 0; i < size; i++)
 142                 {
 143                         int startBit = bit;
 144                         int endBit = (bit = bit + classes[i].getExpectedBits()) - 1;
 145                         String name = startBit == endBit ? Integer.toString(startBit) : startBit + "..." + endBit;
 146                         int bounds = 20 + 20 * classes[i].getExpectedBits();
 147
 148                         createEditingAndLabel(createTableViewerColumn(name, bounds), miDef, i);
 149                 }
 150
 151         }
 152
 153         private void createEditingAndLabel(TableViewerColumn col, MicroInstructionDefinition miDef, int index)
 154         {
 155                 ParameterClassification parameterClassification = miDef.getParameterClassifications()[index];
 156                 EditingSupport support;
 157                 ColumnLabelProvider provider;
 158                 switch (parameterClassification.getExpectedType())
 159                 {
 160                 case BOOLEAN_IMMEDIATE:
 161                         support = new BooleanEditingSupport(viewer, miDef, index);
 162                         provider = new ParameterLabelProvider(index);
 163                         break;
 164                 case INTEGER_IMMEDIATE:
 165                         support = new IntegerEditingSupport(viewer, miDef, index, displaySettings, this.provider);
 166                         provider = new IntegerColumnLabelProvider(displaySettings, index);
 167                         break;
 168                 case MNEMONIC:
 169                         support = new MnemonicEditingSupport(viewer, miDef, index, this.provider);
 170                         provider = new ParameterLabelProvider(index);
 171                         break;
 172                 default:
 173                         throw new IllegalStateException(
 174                                         "Unable to create EditingSupport for unknown ParameterType " + parameterClassification.getExpectedType());
 175                 }
 176                 col.setEditingSupport(support);
 177                 col.setLabelProvider(provider);
 178                 col.getColumn().setToolTipText(miDef.getParameterDescription(index).orElse(""));
 179         }
 180
 181         private TableViewerColumn createTableViewerColumn(String title, int bound)
 182         {
 183                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 184                 TableColumn column = viewerColumn.getColumn();
 185                 column.setText(title);
 186                 column.setWidth(bound);
 187                 column.setResizable(true);
 188                 column.setMoveable(false);
 189                 return viewerColumn;
 190         }
 191
 192         private void open(String file)
 193         {
 194                 if (miDef == null)
 195                 {
 196                         System.err.println("Failed to parse MicroprogrammingMemory from File. No MicroInstructionDefinition assigned.");
 197                         return;
 198                 }
 199                 try
 200                 {
 201                         MicroInstructionMemoryParser.parseMemory(memory, file);
 202                         viewer.refresh();
 203                         saveLoc = file;
 204                 }
 205                 catch (IOException | MicroInstructionMemoryParseException e)
 206                 {
 207                         e.printStackTrace();
 208                 }
 209         }
 210
 211         private void save(String file)
 212         {
 213                 if (memory == null)
 214                 {
 215                         System.err.println("Failed to write MicroprogrammingMemory to File. No MicroprogrammingMemory assigned.");
 216                 }
 217                 if (saveLoc != null)
 218                 {
 219                         try
 220                         {
 221                                 MicroInstructionMemoryParser.write(memory, file);
 222                         }
 223                         catch (IOException e)
 224                         {
 225                                 e.printStackTrace();
 226                         }
 227                 }
 228         }
 229
 230         @Override
 231         public void setFocus()
 232         {
 233                 viewer.getControl().setFocus();
 234         }
 235
 236         @Override
 237         public void setMachine(Optional<Machine> machine)
 238         {
 239                 if (machine.isPresent())
 240                 {
 241                         Machine actualMachine = machine.get();
 242                         bindMicroInstructionMemory(actualMachine.getMicroInstructionMemory());
 243                 }
 244         }
 245 }