bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor2/SCLModuleEditor2DocumentProvider.java

   1 package org.simantics.scl.ui.editor2;
   2
   3 import java.io.IOException;
   4
   5 import org.eclipse.core.runtime.CoreException;
   6 import org.eclipse.core.runtime.IProgressMonitor;
   7 import org.eclipse.core.runtime.Status;
   8 import org.eclipse.jface.operation.IRunnableContext;
   9 import org.eclipse.jface.text.Document;
  10 import org.eclipse.jface.text.IDocument;
  11 import org.eclipse.jface.text.IDocumentPartitioner;
  12 import org.eclipse.jface.text.rules.FastPartitioner;
  13 import org.eclipse.jface.text.source.AnnotationModel;
  14 import org.eclipse.jface.text.source.IAnnotationModel;
  15 import org.eclipse.ui.texteditor.AbstractDocumentProvider;
  16 import org.simantics.scl.compiler.source.ModuleSource;
  17 import org.simantics.scl.compiler.source.TextualModuleSource;
  18 import org.simantics.scl.osgi.SCLOsgi;
  19 import org.simantics.scl.ui.editor.SCLSourceViewerConfigurationNew;
  20
  21 public class SCLModuleEditor2DocumentProvider extends AbstractDocumentProvider {
  22
  23     private SCLSourceViewerConfigurationNew sourceViewer;
  24     protected AnnotationModel annotationModel = new AnnotationModel();
  25
  26     private Object currentElement;
  27     private TextualModuleSource currentSource;
  28
  29     public SCLModuleEditor2DocumentProvider(SCLSourceViewerConfigurationNew sourceViewer) {
  30         this.sourceViewer = sourceViewer;
  31     }
  32
  33     private void updateTextualModuleSource(Object input) {
  34         if (currentElement != null && currentElement.equals(input))
  35             return;
  36         currentElement = input;
  37         if(!(currentElement instanceof SCLModuleEditorInput))
  38             return;
  39
  40         ModuleSource source = ((SCLModuleEditorInput)currentElement).getAdapter(ModuleSource.class);
  41         if(source == null)
  42             return;
  43         if(!(source instanceof TextualModuleSource))
  44             return;
  45         currentSource = (TextualModuleSource)source;
  46     }
  47
  48     @Override
  49     protected IDocument createDocument(Object element) throws CoreException {
  50         updateTextualModuleSource(element);
  51         if(currentSource == null)
  52             throw new CoreException(
  53                     new Status(Status.ERROR, "org.simantics.scl.ui", Messages.SCLModuleEditor2DocumentProvider_Status_SCLSourceNotFound) //$NON-NLS-1$
  54                     );
  55         Document document;
  56         try {
  57             document = new Document(currentSource.getSourceText(null));
  58         } catch (IOException e) {
  59             throw new CoreException(
  60                     new Status(Status.ERROR, "org.simantics.scl.ui", "Reading SCL module failed.", e) //$NON-NLS-1$ //$NON-NLS-2$
  61                     );
  62         }
  63         IDocumentPartitioner partitioner = new FastPartitioner(new SCLPartitionScanner(), SCLPartitionScanner.PARTITION_TYPES);
  64         partitioner.connect(document);
  65         document.setDocumentPartitioner(partitioner);
  66         sourceViewer.updateCompletionAssistModuleName(currentSource.getModuleName());
  67         return document;
  68     }
  69
  70     @Override
  71     public void changed(Object element) {
  72         updateTextualModuleSource(element);
  73     }
  74
  75     @Override
  76     public void aboutToChange(Object element) {
  77         super.aboutToChange(element);
  78     }
  79
  80     @Override
  81     public boolean isModifiable(Object element) {
  82         if(currentSource == null)
  83             return false;
  84         return currentSource.isUpdateable();
  85     }
  86
  87     @Override
  88     public boolean isReadOnly(Object element) {
  89         return !isModifiable(element);
  90     }
  91
  92     @Override
  93     protected IAnnotationModel createAnnotationModel(Object element)
  94             throws CoreException {
  95         SCLModuleEditorInput input = (SCLModuleEditorInput)element;
  96         return new SCLAnnotationModel(input, SCLOsgi.MODULE_REPOSITORY);
  97     }
  98
  99     @Override
 100     protected void doSaveDocument(IProgressMonitor monitor, Object element,
 101             IDocument document, boolean overwrite) throws CoreException {
 102         if(currentSource == null)
 103             return;
 104         currentSource.update(document.get());
 105     }
 106
 107     @Override
 108     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
 109         // TODO Auto-generated method stub
 110         return null;
 111     }
 112
 113 }