plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/InstructionView.java

   1 package net.mograsim.plugin.tables.mi;
   2
   3 import java.io.BufferedReader;
   4 import java.io.File;
   5 import java.io.FileReader;
   6 import java.io.IOException;
   7
   8 import org.eclipse.core.runtime.IProgressMonitor;
   9 import org.eclipse.swt.SWT;
  10 import org.eclipse.swt.layout.GridData;
  11 import org.eclipse.swt.layout.GridLayout;
  12 import org.eclipse.swt.widgets.Button;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Display;
  15 import org.eclipse.swt.widgets.FileDialog;
  16 import org.eclipse.ui.IEditorInput;
  17 import org.eclipse.ui.IEditorSite;
  18 import org.eclipse.ui.IPathEditorInput;
  19 import org.eclipse.ui.PartInitException;
  20 import org.eclipse.ui.part.EditorPart;
  21
  22 import net.mograsim.machine.Memory.MemoryCellModifiedListener;
  23 import net.mograsim.machine.mi.MicroInstructionMemory;
  24 import net.mograsim.machine.mi.MicroInstructionMemory.ActiveMicroInstructionChangedListener;
  25 import net.mograsim.machine.mi.MicroInstructionMemoryParseException;
  26 import net.mograsim.machine.mi.MicroInstructionMemoryParser;
  27 import net.mograsim.plugin.MachineContext;
  28 import net.mograsim.plugin.tables.DisplaySettings;
  29 import net.mograsim.plugin.tables.LazyTableViewer;
  30 import net.mograsim.plugin.tables.RadixSelector;
  31
  32 public class InstructionView extends EditorPart implements MemoryCellModifiedListener, ActiveMicroInstructionChangedListener
  33 {
  34         private InstructionTableContentProvider provider;
  35         private int highlighted = 0;
  36         private boolean dirty = false;
  37         private String machineName;
  38         private MicroInstructionMemory memory;
  39         private InstructionTable table;
  40
  41         @SuppressWarnings("unused")
  42         @Override
  43         public void createPartControl(Composite parent)
  44         {
  45                 provider = new InstructionTableLazyContentProvider();
  46                 GridLayout layout = new GridLayout(3, false);
  47                 parent.setLayout(layout);
  48
  49                 DisplaySettings displaySettings = new DisplaySettings();
  50                 new RadixSelector(parent, displaySettings);
  51
  52                 addActivationButton(parent);
  53
  54                 table = new InstructionTable(parent, displaySettings);
  55                 table.setContentProvider(provider);
  56                 table.bindMicroInstructionMemory(memory);
  57
  58                 GridData viewerData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.FILL_BOTH);
  59                 viewerData.horizontalSpan = 3;
  60                 table.getTableViewer().getTable().setLayoutData(viewerData);
  61         }
  62
  63         public void highlight(int index)
  64         {
  65                 Display.getDefault().asyncExec(() ->
  66                 {
  67                         LazyTableViewer viewer = table.getTableViewer();
  68                         viewer.highlightRow(highlighted, false);
  69                         highlighted = index;
  70                         viewer.highlightRow(index, true);
  71                         viewer.getTable().showItem(viewer.getTable().getItem(Math.min((int) memory.getDefinition().getMaximalAddress(), index + 2)));
  72                         viewer.getTable().showItem(viewer.getTable().getItem(index));
  73                 });
  74         }
  75
  76         private void addActivationButton(Composite parent)
  77         {
  78                 Button activationButton = new Button(parent, SWT.PUSH);
  79                 activationButton.setText("Set Active");
  80                 activationButton.addListener(SWT.Selection,
  81                                 e -> MachineContext.getInstance().getMachine().getMicroInstructionMemory().bind(memory));
  82         }
  83
  84         public void bindMicroInstructionMemory(MicroInstructionMemory memory)
  85         {
  86                 this.memory = memory;
  87                 this.memory.registerCellModifiedListener(this);
  88                 this.memory.registerActiveMicroInstructionChangedListener(this);
  89                 if (table != null)
  90                         table.bindMicroInstructionMemory(memory);
  91         }
  92
  93         private void open(String file)
  94         {
  95                 try (BufferedReader bf = new BufferedReader(new FileReader(file)))
  96                 {
  97                         machineName = bf.readLine();
  98                         bindMicroInstructionMemory(MicroInstructionMemoryParser.parseMemory(machineName, bf));
  99                 }
 100                 catch (IOException | MicroInstructionMemoryParseException e)
 101                 {
 102                         e.printStackTrace();
 103                 }
 104         }
 105
 106         private void save(String file)
 107         {
 108                 if (memory == null)
 109                 {
 110                         System.err.println("Failed to write MicroprogrammingMemory to File. No MicroprogrammingMemory assigned.");
 111                         return;
 112                 }
 113                 try
 114                 {
 115                         MicroInstructionMemoryParser.write(memory, machineName, file);
 116                 }
 117                 catch (IOException e)
 118                 {
 119                         e.printStackTrace();
 120                 }
 121         }
 122
 123         @Override
 124         public void setFocus()
 125         {
 126                 table.getTableViewer().getControl().setFocus();
 127         }
 128
 129         @Override
 130         public void doSave(IProgressMonitor progressMonitor)
 131         {
 132                 IEditorInput input = getEditorInput();
 133                 if (input instanceof IPathEditorInput)
 134                 {
 135                         IPathEditorInput pathInput = (IPathEditorInput) input;
 136                         save(pathInput.getPath().toOSString());
 137                         setDirty(false);
 138                 }
 139         }
 140
 141         @Override
 142         public void doSaveAs()
 143         {
 144                 openSaveAsDialog();
 145         }
 146
 147         private void openSaveAsDialog()
 148         {
 149                 FileDialog d = new FileDialog(table.getTableViewer().getTable().getShell(), SWT.SAVE);
 150                 d.open();
 151                 String filename = d.getFileName();
 152                 if (!filename.equals(""))
 153                 {
 154                         save(d.getFilterPath() + File.separator + filename);
 155                         setDirty(false);
 156                 }
 157         }
 158
 159         @Override
 160         public void init(IEditorSite site, IEditorInput input) throws PartInitException
 161         {
 162                 setSite(site);
 163                 setInput(input);
 164                 if (input instanceof IPathEditorInput)
 165                 {
 166                         IPathEditorInput pathInput = (IPathEditorInput) input;
 167                         setPartName(pathInput.getName());
 168                         open(pathInput.getPath().toOSString());
 169                 }
 170         }
 171
 172         @Override
 173         public boolean isDirty()
 174         {
 175                 return dirty;
 176         }
 177
 178         @Override
 179         public boolean isSaveAsAllowed()
 180         {
 181                 return true;
 182         }
 183
 184         @Override
 185         public void update(long address)
 186         {
 187                 setDirty(true);
 188                 table.refresh();
 189         }
 190
 191         private void setDirty(boolean value)
 192         {
 193                 dirty = value;
 194                 firePropertyChange(PROP_DIRTY);
 195         }
 196
 197         @Override
 198         public void activeMicroInstructionChanged(long address)
 199         {
 200                 highlight((int) (address - memory.getDefinition().getMinimalAddress()));
 201         }
 202 }