MemoryEditor Font can now be configured

[Mograsim.git] / plugins / net.mograsim.plugin.core / src / net / mograsim / plugin / editors / MemoryEditor.java

diff --git a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/editors/MemoryEditor.java b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/editors/MemoryEditor.java
index 2b02852..028a1b5 100644 (file)
--- a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/editors/MemoryEditor.java
+++ b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/editors/MemoryEditor.java
@@ -1,11 +1,13 @@
 package net.mograsim.plugin.editors;
 
-import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.math.BigInteger;
 
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.SafeRunnable;
 import org.eclipse.jface.viewers.TableViewerColumn;
 import org.eclipse.swt.SWT;
@@ -22,10 +24,14 @@ import org.eclipse.ui.IEditorSite;
 import org.eclipse.ui.IFileEditorInput;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.part.EditorPart;
+import org.eclipse.ui.themes.ITheme;
+import org.eclipse.ui.themes.IThemeManager;
 
 import net.mograsim.machine.MainMemory;
+import net.mograsim.machine.MainMemoryDefinition;
+import net.mograsim.machine.Memory.MemoryCellModifiedListener;
 import net.mograsim.machine.mi.MicroInstructionMemoryParseException;
-import net.mograsim.machine.standard.memory.WordAddressableMemory;
+import net.mograsim.machine.standard.memory.MainMemoryParser;
 import net.mograsim.plugin.asm.AsmNumberUtil;
 import net.mograsim.plugin.nature.MachineContext;
 import net.mograsim.plugin.nature.ProjectMachineContext;
@@ -49,6 +55,18 @@ public class MemoryEditor extends EditorPart
        private MemoryTableContentProvider provider;
        private DisplaySettings displaySettings;
 
+       private boolean dirty;
+
+       private final MemoryCellModifiedListener memListener;
+
+       private final static String font = "net.mograsim.plugin.memory.table_font";
+       private IPropertyChangeListener fontChangeListener;
+
+       public MemoryEditor()
+       {
+               memListener = this::cellModified;
+       }
+
        @Override
        public void createPartControl(Composite parent)
        {
@@ -127,12 +145,29 @@ public class MemoryEditor extends EditorPart
                table.setLinesVisible(true);
                viewer.setUseHashlookup(true);
                viewer.setContentProvider(provider);
-               getSite().setSelectionProvider(viewer);// TODO what does this?
+               getSite().setSelectionProvider(viewer);// TODO what does this do?
                viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 7, 1));
+
+               IThemeManager themeManager = getSite().getWorkbenchWindow().getWorkbench().getThemeManager();
+               themeManager.addPropertyChangeListener(fontChangeListener = (e) ->
+               {
+                       if (IThemeManager.CHANGE_CURRENT_THEME.equals(e.getProperty()) || font.equals(e.getProperty()))
+                       {
+                               updateFont(themeManager.getCurrentTheme());
+                               viewer.refresh();
+                       }
+               });
+               updateFont(themeManager.getCurrentTheme());
+
                if (memory != null)
                        viewer.setInput(memory);
        }
 
+       private void updateFont(ITheme theme)
+       {
+               viewer.getTable().setFont(theme.getFontRegistry().get(font));
+       }
+
        private void createColumns()
        {
                TableViewerColumn addrCol = createTableViewerColumn("Address", 100);
@@ -178,7 +213,14 @@ public class MemoryEditor extends EditorPart
                        context.activateMachine();
 
                        setPartName(fileInput.getName());
-                       open(fileInput.getFile());
+                       try
+                       {
+                               open(fileInput.getFile());
+                       }
+                       catch (Exception e)
+                       {
+                               throw new PartInitException("Failed to read input!", e);
+                       }
                } else
                        throw new IllegalArgumentException("MemoryEditor can only be used with Files");
 
@@ -194,20 +236,40 @@ public class MemoryEditor extends EditorPart
                        SafeRunnable.getRunner().run(() -> save(((IFileEditorInput) input).getFile(), monitor));
        }
 
-       private void save(IFile file, IProgressMonitor monitor) throws CoreException
+       private void save(IFile file, IProgressMonitor monitor) throws CoreException, IOException
        {
-               file.setContents(new ByteArrayInputStream("actual contents will go here".getBytes()), 0, monitor);
+               if (memory == null)
+               {
+                       throw new MicroInstructionMemoryParseException("Failed to write MainMemory to File. No MainMemory assigned.");
+               }
+               try (InputStream toWrite = MainMemoryParser.write(memory))
+               {
+                       file.setContents(toWrite, 0, monitor);
+                       setDirty(false);
+               }
        }
 
-       private void open(IFile file)
+       private void open(IFile file) throws IOException, CoreException
        {
-               // TODO actually parse the file
-               memory = new WordAddressableMemory(context.getMachineDefinition()
-                               .orElseThrow(() -> new MicroInstructionMemoryParseException("No MachineDefinition assigned!")).getMainMemoryDefinition());
+               MainMemoryDefinition memDef = context.getMachineDefinition()
+                               .orElseThrow(() -> new MicroInstructionMemoryParseException("No MachineDefinition assigned!")).getMainMemoryDefinition();
+               memory = MainMemoryParser.parseMemory(memDef, file.getContents());
+               memory.registerCellModifiedListener(memListener);
                if (viewer != null)
                        viewer.setInput(memory);
        }
 
+       private void cellModified(@SuppressWarnings("unused") long address)
+       {
+               setDirty(true);
+       }
+
+       private void setDirty(boolean newDirty)
+       {
+               dirty = newDirty;
+               firePropertyChange(PROP_DIRTY);
+       }
+
        @Override
        public void doSaveAs()
        {
@@ -217,8 +279,7 @@ public class MemoryEditor extends EditorPart
        @Override
        public boolean isDirty()
        {
-               // TODO
-               return false;
+               return dirty;
        }
 
        @Override
@@ -236,7 +297,9 @@ public class MemoryEditor extends EditorPart
        @Override
        public void dispose()
        {
-               // TODO Auto-generated method stub
+               getSite().getWorkbenchWindow().getWorkbench().getThemeManager().removePropertyChangeListener(fontChangeListener);
+               if (memory != null)
+                       memory.deregisterCellModifiedListener(memListener);
                super.dispose();
        }
 }
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