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

   1 package net.mograsim.plugin.memory;
   2
   3 import org.eclipse.jface.viewers.ColumnLabelProvider;
   4 import org.eclipse.jface.viewers.TableViewer;
   5 import org.eclipse.jface.viewers.TableViewerColumn;
   6 import org.eclipse.swt.SWT;
   7 import org.eclipse.swt.events.SelectionEvent;
   8 import org.eclipse.swt.events.SelectionListener;
   9 import org.eclipse.swt.events.VerifyListener;
  10 import org.eclipse.swt.layout.GridData;
  11 import org.eclipse.swt.layout.GridLayout;
  12 import org.eclipse.swt.widgets.Combo;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Label;
  15 import org.eclipse.swt.widgets.Table;
  16 import org.eclipse.swt.widgets.TableColumn;
  17 import org.eclipse.swt.widgets.Text;
  18 import org.eclipse.ui.part.ViewPart;
  19
  20 import net.mograsim.machine.DefaultMainMemoryDefinition;
  21 import net.mograsim.machine.MainMemory;
  22 import net.mograsim.machine.standard.memory.WordAddressableMemory;
  23 import net.mograsim.plugin.asm.AsmNumberUtil;
  24 import net.mograsim.plugin.asm.AsmNumberUtil.NumberType;
  25
  26 public class MemoryView extends ViewPart
  27 {
  28         private TableViewer viewer;
  29         private MemoryTableContentProvider provider;
  30         private DisplaySettings displaySettings;
  31         private String addressFormat;
  32
  33         @Override
  34         public void createPartControl(Composite parent)
  35         {
  36                 provider = new MemoryTableContentProvider();
  37                 displaySettings = new DisplaySettings();
  38                 displaySettings.setDataNumberType(NumberType.HEXADECIMAL);
  39
  40                 GridLayout layout = new GridLayout(6, false);
  41                 parent.setLayout(layout);
  42                 Label fromLabel = new Label(parent, SWT.NONE);
  43                 fromLabel.setText("Address: ");
  44                 Text fromText = new Text(parent, SWT.BORDER | SWT.SEARCH);
  45                 fromText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL));
  46                 VerifyListener vl = new NumberVerifyListener();
  47                 fromText.addVerifyListener(vl);
  48                 fromText.setText("0");
  49                 fromText.addModifyListener(e ->
  50                 {
  51                         try
  52                         {
  53                                 provider.setLowerBound(AsmNumberUtil.valueOf(fromText.getText()).longValue());
  54                                 viewer.refresh();
  55                         }
  56                         catch (@SuppressWarnings("unused") NumberFormatException ex)
  57                         {
  58                                 // Nothing to do here
  59                         }
  60                 });
  61
  62                 Label amountLabel = new Label(parent, SWT.NONE);
  63                 amountLabel.setText("Number of cells: ");
  64                 Text amountText = new Text(parent, SWT.BORDER | SWT.SEARCH);
  65                 amountText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL));
  66                 amountText.addVerifyListener(vl);
  67                 amountText.setText("0");
  68                 amountText.addModifyListener(e ->
  69                 {
  70                         try
  71                         {
  72                                 provider.setAmount(AsmNumberUtil.valueOf(amountText.getText()).intValue());
  73                                 viewer.refresh();
  74                         }
  75                         catch (@SuppressWarnings("unused") NumberFormatException ex)
  76                         {
  77                                 // Nothing to do here
  78                         }
  79                 });
  80
  81                 setupRadixSelector(parent);
  82
  83                 createViewer(parent);
  84         }
  85
  86         private void setupRadixSelector(Composite parent)
  87         {
  88                 Label radixLabel = new Label(parent, SWT.NONE);
  89                 radixLabel.setText("Radix: ");
  90                 Combo selectRadix = new Combo(parent, SWT.READ_ONLY);
  91
  92                 String entries[] = new String[] { "Binary", "Octal", "Decimal", "Hexadecimal" };
  93                 NumberType corTypes[] = new NumberType[] { NumberType.BINARY, NumberType.OCTAL, NumberType.DECIMAL, NumberType.HEXADECIMAL };
  94                 selectRadix.setItems(entries);
  95                 selectRadix.addSelectionListener(new SelectionListener()
  96                 {
  97                         @Override
  98                         public void widgetSelected(SelectionEvent e)
  99                         {
 100                                 int index = selectRadix.getSelectionIndex();
 101                                 if (index == -1)
 102                                         displaySettings.setDataNumberType(NumberType.HEXADECIMAL);
 103                                 else
 104                                 {
 105                                         displaySettings.setDataNumberType(corTypes[index]);
 106                                 }
 107                                 viewer.refresh();
 108                         }
 109
 110                         @Override
 111                         public void widgetDefaultSelected(SelectionEvent e)
 112                         {
 113                                 widgetSelected(e);
 114                         }
 115                 });
 116         }
 117
 118         private void createViewer(Composite parent)
 119         {
 120                 viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER | SWT.VIRTUAL);
 121                 createColumns();
 122                 Table table = viewer.getTable();
 123                 table.setHeaderVisible(true);
 124                 table.setLinesVisible(true);
 125                 viewer.setUseHashlookup(true);
 126                 viewer.setContentProvider(provider);
 127                 setMemoryBinding(new WordAddressableMemory(new DefaultMainMemoryDefinition(8, 8, 8L, Long.MAX_VALUE)));
 128                 getSite().setSelectionProvider(viewer);
 129
 130                 GridData gd = new GridData();
 131                 gd.verticalAlignment = GridData.FILL;
 132                 gd.horizontalSpan = 6;
 133                 gd.grabExcessHorizontalSpace = true;
 134                 gd.grabExcessVerticalSpace = true;
 135                 gd.horizontalAlignment = GridData.FILL;
 136                 viewer.getControl().setLayoutData(gd);
 137         }
 138
 139         private void createColumns()
 140         {
 141                 String[] titles = { "Address", "Data" };
 142                 int[] bounds = { 100, 100 };
 143
 144                 TableViewerColumn col = createTableViewerColumn(titles[0], bounds[0]);
 145                 col.setLabelProvider(new ColumnLabelProvider()
 146                 {
 147                         @Override
 148                         public String getText(Object element)
 149                         {
 150                                 MemoryTableRow row = (MemoryTableRow) element;
 151                                 return String.format(addressFormat, row.address);// TODO: make the string length dependent on memory address length
 152                         }
 153                 });
 154
 155                 col = createTableViewerColumn(titles[1], bounds[1]);
 156                 col.setLabelProvider(new ColumnLabelProvider()
 157                 {
 158                         @Override
 159                         public String getText(Object element)
 160                         {
 161                                 MemoryTableRow row = (MemoryTableRow) element;
 162                                 return AsmNumberUtil.toString(row.getMemory().getCellAsBigInteger(row.address), displaySettings.getDataNumberType());
 163                         }
 164                 });
 165                 col.setEditingSupport(new MemoryCellEditingSupport(viewer, displaySettings));
 166         }
 167
 168         private TableViewerColumn createTableViewerColumn(String title, int bound)
 169         {
 170                 TableViewerColumn viewerColumn = new TableViewerColumn(viewer, SWT.NONE);
 171                 TableColumn column = viewerColumn.getColumn();
 172                 column.setText(title);
 173                 column.setWidth(bound);
 174                 column.setResizable(true);
 175                 column.setMoveable(false);
 176                 return viewerColumn;
 177         }
 178
 179         @Override
 180         public void setFocus()
 181         {
 182                 viewer.getControl().setFocus();
 183         }
 184
 185         public void setMemoryBinding(MainMemory m)
 186         {
 187                 int hexAddressLength = Long.toUnsignedString(m.getDefinition().getMaximalAddress(), 16).length();
 188                 addressFormat = "0x%0" + hexAddressLength + "X";
 189                 viewer.setInput(m);
 190         }
 191
 192         public static class DisplaySettings
 193         {
 194                 private AsmNumberUtil.NumberType dataNumberType;
 195
 196                 public AsmNumberUtil.NumberType getDataNumberType()
 197                 {
 198                         return dataNumberType;
 199                 }
 200
 201                 public void setDataNumberType(AsmNumberUtil.NumberType dataNumberType)
 202                 {
 203                         this.dataNumberType = dataNumberType;
 204                 }
 205         }
 206 }