net.mograsim.plugin.core/src/net/mograsim/plugin/tables/memory/MemoryView.java

   1 package net.mograsim.plugin.tables.memory;
   2
   3 import java.math.BigInteger;
   4
   5 import org.eclipse.jface.viewers.ColumnLabelProvider;
   6 import org.eclipse.jface.viewers.TableViewer;
   7 import org.eclipse.jface.viewers.TableViewerColumn;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.SelectionEvent;
  10 import org.eclipse.swt.events.SelectionListener;
  11 import org.eclipse.swt.events.VerifyListener;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.layout.GridLayout;
  14 import org.eclipse.swt.widgets.Combo;
  15 import org.eclipse.swt.widgets.Composite;
  16 import org.eclipse.swt.widgets.Label;
  17 import org.eclipse.swt.widgets.Table;
  18 import org.eclipse.swt.widgets.TableColumn;
  19 import org.eclipse.swt.widgets.Text;
  20 import org.eclipse.ui.part.ViewPart;
  21
  22 import net.mograsim.machine.MainMemory;
  23 import net.mograsim.machine.MainMemoryDefinition;
  24 import net.mograsim.machine.standard.memory.WordAddressableMemory;
  25 import net.mograsim.plugin.asm.AsmNumberUtil;
  26 import net.mograsim.plugin.asm.AsmNumberUtil.NumberType;
  27 import net.mograsim.plugin.tables.NumberColumnLabelProvider;
  28
  29 public class MemoryView extends ViewPart
  30 {
  31         private TableViewer viewer;
  32         private MemoryTableContentProvider provider;
  33         private DisplaySettings displaySettings;
  34         private String addressFormat;
  35
  36         @Override
  37         public void createPartControl(Composite parent)
  38         {
  39                 provider = new MemoryTableContentProvider();
  40                 displaySettings = new DisplaySettings(NumberType.HEXADECIMAL);
  41
  42                 GridLayout layout = new GridLayout(6, false);
  43                 parent.setLayout(layout);
  44                 Label fromLabel = new Label(parent, SWT.NONE);
  45                 fromLabel.setText("Address: ");
  46                 Text fromText = new Text(parent, SWT.BORDER | SWT.SEARCH);
  47                 fromText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL));
  48                 VerifyListener vl = new NumberVerifyListener();
  49                 fromText.addVerifyListener(vl);
  50                 fromText.setText("0");
  51                 fromText.addModifyListener(e ->
  52                 {
  53                         try
  54                         {
  55                                 provider.setLowerBound(AsmNumberUtil.valueOf(fromText.getText()).longValue());
  56                                 viewer.refresh();
  57                         }
  58                         catch (@SuppressWarnings("unused") NumberFormatException ex)
  59                         {
  60                                 // Nothing to do here
  61                         }
  62                 });
  63
  64                 Label amountLabel = new Label(parent, SWT.NONE);
  65                 amountLabel.setText("Number of cells: ");
  66                 Text amountText = new Text(parent, SWT.BORDER | SWT.SEARCH);
  67                 amountText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL));
  68                 amountText.addVerifyListener(vl);
  69                 amountText.setText("0");
  70                 amountText.addModifyListener(e ->
  71                 {
  72                         try
  73                         {
  74                                 provider.setAmount(AsmNumberUtil.valueOf(amountText.getText()).intValue());
  75                                 viewer.refresh();
  76                         }
  77                         catch (@SuppressWarnings("unused") NumberFormatException ex)
  78                         {
  79                                 // Nothing to do here
  80                         }
  81                 });
  82
  83                 setupRadixSelector(parent);
  84
  85                 createViewer(parent);
  86         }
  87
  88         private void setupRadixSelector(Composite parent)
  89         {
  90                 Label radixLabel = new Label(parent, SWT.NONE);
  91                 radixLabel.setText("Radix: ");
  92                 Combo selectRadix = new Combo(parent, SWT.READ_ONLY);
  93
  94                 String entries[] = new String[] { "Binary", "Octal", "Decimal", "Hexadecimal" };
  95                 NumberType corTypes[] = new NumberType[] { NumberType.BINARY, NumberType.OCTAL, NumberType.DECIMAL, NumberType.HEXADECIMAL };
  96                 selectRadix.setItems(entries);
  97                 selectRadix.addSelectionListener(new SelectionListener()
  98                 {
  99                         @Override
 100                         public void widgetSelected(SelectionEvent e)
 101                         {
 102                                 int index = selectRadix.getSelectionIndex();
 103                                 if (index == -1)
 104                                         displaySettings.setDataNumberType(NumberType.HEXADECIMAL);
 105                                 else
 106                                 {
 107                                         displaySettings.setDataNumberType(corTypes[index]);
 108                                 }
 109                                 viewer.refresh();
 110                         }
 111
 112                         @Override
 113                         public void widgetDefaultSelected(SelectionEvent e)
 114                         {
 115                                 widgetSelected(e);
 116                         }
 117                 });
 118         }
 119
 120         private void createViewer(Composite parent)
 121         {
 122                 viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
 123                 createColumns();
 124                 Table table = viewer.getTable();
 125                 table.setHeaderVisible(true);
 126                 table.setLinesVisible(true);
 127                 viewer.setUseHashlookup(true);
 128                 viewer.setContentProvider(provider);
 129                 setMemoryBinding(new WordAddressableMemory(MainMemoryDefinition.create(8, 8, 8L, Long.MAX_VALUE)));
 130                 getSite().setSelectionProvider(viewer);
 131
 132                 GridData gd = new GridData();
 133                 gd.verticalAlignment = GridData.FILL;
 134                 gd.horizontalSpan = 6;
 135                 gd.grabExcessHorizontalSpace = true;
 136                 gd.grabExcessVerticalSpace = true;
 137                 gd.horizontalAlignment = GridData.FILL;
 138                 viewer.getControl().setLayoutData(gd);
 139         }
 140
 141         private void createColumns()
 142         {
 143                 String[] titles = { "Address", "Data" };
 144                 int[] bounds = { 100, 100 };
 145
 146                 TableViewerColumn col = createTableViewerColumn(titles[0], bounds[0]);
 147                 col.setLabelProvider(new ColumnLabelProvider()
 148                 {
 149                         @Override
 150                         public String getText(Object element)
 151                         {
 152                                 MemoryTableRow row = (MemoryTableRow) element;
 153                                 return String.format(addressFormat, row.address);
 154                         }
 155                 });
 156
 157                 col = createTableViewerColumn(titles[1], bounds[1]);
 158                 col.setLabelProvider(new NumberColumnLabelProvider(displaySettings)
 159                 {
 160                         @Override
 161                         public BigInteger getAsBigInteger(Object element)
 162                         {
 163                                 MemoryTableRow row = (MemoryTableRow) element;
 164                                 return row.getMemory().getCellAsBigInteger(row.address);
 165                         }
 166
 167                 });
 168                 col.setEditingSupport(new MemoryCellEditingSupport(viewer, displaySettings));
 169         }
 170
 171         private TableViewerColumn createTableViewerColumn(String title, int bound)
 172         {
 173                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 174                 TableColumn column = viewerColumn.getColumn();
 175                 column.setText(title);
 176                 column.setWidth(bound);
 177                 column.setResizable(true);
 178                 column.setMoveable(false);
 179                 return viewerColumn;
 180         }
 181
 182         @Override
 183         public void setFocus()
 184         {
 185                 viewer.getControl().setFocus();
 186         }
 187
 188         public void setMemoryBinding(MainMemory m)
 189         {
 190                 int hexAddressLength = Long.toUnsignedString(m.getDefinition().getMaximalAddress(), 16).length();
 191                 addressFormat = "0x%0" + hexAddressLength + "X";
 192                 viewer.setInput(m);
 193         }
 194 }