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