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

   1 package net.mograsim.plugin.tables.mi;
   2
   3 import org.eclipse.jface.viewers.TableViewer;
   4 import org.eclipse.jface.viewers.Viewer;
   5
   6 import net.mograsim.machine.mi.MicroInstructionMemory;
   7
   8 public class InstructionTableLazyContentProvider implements InstructionTableContentProvider
   9 {
  10         private TableViewer viewer;
  11         private MicroInstructionMemory memory;
  12         private long minAddr = 0;
  13
  14         @Override
  15         public void updateElement(int index)
  16         {
  17                 long address = memory.getDefinition().getMinimalAddress() + index;
  18                 viewer.replace(new InstructionTableRow(address, memory), index);
  19         }
  20
  21         @Override
  22         public void inputChanged(Viewer viewer, Object oldInput, Object newInput)
  23         {
  24                 this.viewer = (TableViewer) viewer;
  25                 this.memory = (MicroInstructionMemory) newInput;
  26                 if (this.memory != null)
  27                 {
  28                         this.viewer.setItemCount((int) memory.size());
  29                         this.minAddr = memory.getDefinition().getMinimalAddress();
  30                 }
  31         }
  32
  33         @Override
  34         public void update(long address)
  35         {
  36                 updateElement((int) (address - minAddr));
  37         }
  38 }