X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=plugins%2Fnet.mograsim.plugin.core%2Fsrc%2Fnet%2Fmograsim%2Fplugin%2Ftables%2Fmemory%2FMemoryTableContentProvider.java;h=983e822c493c34600acb6c13a264ed1ed1fa5829;hb=14537617db2bdf3f41c82d724871d9f9c0f8e40e;hp=90ad7885c172640b26e70f24022730685868d5c2;hpb=41292b984ee229deb329c83b525006fd2840becb;p=Mograsim.git

diff --git a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/memory/MemoryTableContentProvider.java b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/memory/MemoryTableContentProvider.java
index 90ad7885..983e822c 100644
--- a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/memory/MemoryTableContentProvider.java
+++ b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/memory/MemoryTableContentProvider.java
@@ -6,33 +6,35 @@ import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.swt.widgets.Display;
 
 import net.mograsim.machine.MainMemory;
+import net.mograsim.machine.MainMemoryDefinition;
 import net.mograsim.machine.Memory.MemoryCellModifiedListener;
 
 public class MemoryTableContentProvider implements ILazyContentProvider, MemoryCellModifiedListener
 {
-	private long lower;
+	private long lower, upper;
 	private TableViewer viewer;
-	private final static int limit = 10_000;
-	private int amount = 0;
+	public final static int MAX_VISIBLE_ROWS = 1_000;
 	private MainMemory memory;
 
-	public void setLowerBound(long lower)
+	public void setBounds(long lower, long upper)
 	{
 		if (memory != null)
-			this.lower = Long.min(memory.getDefinition().getMaximalAddress(), Long.max(memory.getDefinition().getMinimalAddress(), lower));
-		else
+		{
+			MainMemoryDefinition definition = memory.getDefinition();
+			this.lower = Long.min(definition.getMaximalAddress(), Long.max(definition.getMinimalAddress(), lower));
+			this.upper = Long.max(this.lower, Long.min(definition.getMaximalAddress(), upper));
+		} else
+		{
 			this.lower = lower;
+			this.upper = Long.max(this.lower, upper);
+		}
 		updateItemCount();
 	}
 
 	public void updateItemCount()
 	{
-		if (memory != null)
-		{
-			long size = memory.getDefinition().getMaximalAddress() - lower;
-			viewer.setItemCount(size > amount ? amount : (int) size);
-		} else
-			viewer.setItemCount(0);
+		if (viewer != null)
+			viewer.setItemCount(getAmount());
 	}
 
 	public long getLowerBound()
@@ -40,23 +42,25 @@ public class MemoryTableContentProvider implements ILazyContentProvider, MemoryC
 		return lower;
 	}
 
-	public void setAmount(int amount)
+	public long getUpperBound()
 	{
-		this.amount = Integer.min(amount, limit);
-		updateItemCount();
+		return upper;
 	}
 
 	public int getAmount()
 	{
-		return amount;
+		return (int) (upper - lower);
 	}
 
 	@Override
 	public void updateElement(int index)
 	{
-		long address = lower + index;
-		if (address <= memory.getDefinition().getMaximalAddress())
-			viewer.replace(new MemoryTableRow(address, memory), index);
+		if (index < getAmount())
+		{
+			long address = lower + index;
+			if (address <= memory.getDefinition().getMaximalAddress())
+				viewer.replace(new MemoryTableRow(address, memory), index);
+		}
 	}
 
 	@Override
@@ -68,7 +72,7 @@ public class MemoryTableContentProvider implements ILazyContentProvider, MemoryC
 			((MainMemory) oldInput).deregisterCellModifiedListener(this);
 		if (memory != null)
 			memory.registerCellModifiedListener(this);
-		setLowerBound(0L);
+		setBounds(0, MAX_VISIBLE_ROWS);
 	}
 
 	@Override