* Contributors:
* Igor Malinin - initial contribution
*
- * $Id: MultiViewPartitioner.java,v 1.1 2004-09-02 18:26:29 jsurfer Exp $
+ * $Id: MultiViewPartitioner.java,v 1.10 2006-10-21 23:13:53 pombredanne Exp $
*/
package net.sourceforge.phpeclipse.ui.text.rules;
import org.eclipse.jface.text.rules.IPartitionTokenScanner;
/**
- * Advanced partitioner which maintains partitions as views to connected document. Views have own partitioners themselves. This
- * class is designed as a base for complex partitioners such as for JSP, PHP, ASP, etc. languages.
+ * Advanced partitioner which maintains partitions as views to connected
+ * document. Views have own partitioners themselves. This class is designed as a
+ * base for complex partitioners such as for JSP, PHP, ASP, etc. languages.
*
* @author Igor Malinin
*/
public abstract class MultiViewPartitioner extends AbstractPartitioner {
- class ViewListener implements IDocumentPartitioningListener, IDocumentPartitioningListenerExtension {
-
- /*
- * @see org.eclipse.jface.text.IDocumentPartitioningListener#documentPartitioningChanged(IDocument)
- */
- public void documentPartitioningChanged(IDocument document) {
- IDocumentView view = (IDocumentView) document;
-
- int start = view.getParentOffset(0);
- int end = view.getParentOffset(view.getLength());
-
- rememberRegion(start, end - start);
- }
-
- /*
- * @see org.eclipse.jface.text.IDocumentPartitioningListenerExtension#documentPartitioningChanged(IDocument, IRegion)
- */
- public void documentPartitioningChanged(IDocument document, IRegion region) {
- IDocumentView view = (IDocumentView) document;
-
- int offset = region.getOffset();
-
- int start = view.getParentOffset(offset);
- int end = view.getParentOffset(offset + region.getLength());
-
- rememberRegion(start, end - start);
- }
- }
-
- private ViewListener viewListener = new ViewListener();
-
- private OuterDocumentView outerDocument;
-
- private DocumentEvent outerDocumentEvent;
-
- public MultiViewPartitioner(IPartitionTokenScanner scanner) {
- super(scanner);
- }
-
- public void setOuterPartitioner(IDocumentPartitioner partitioner) {
- if (outerDocument == null) {
- if (partitioner == null) {
- return;
- }
-
- outerDocument = new OuterDocumentView(document, nodes);
- outerDocument.addDocumentPartitioningListener(viewListener);
- }
-
- IDocumentPartitioner old = outerDocument.getDocumentPartitioner();
- if (old != null) {
- outerDocument.setDocumentPartitioner(null);
- old.disconnect();
- }
-
- if (partitioner != null) {
- partitioner.connect(outerDocument);
- }
-
- outerDocument.setDocumentPartitioner(partitioner);
-
- if (partitioner == null) {
- outerDocument.removeDocumentPartitioningListener(viewListener);
- outerDocument = null;
- }
- }
-
- /**
- * Create subpartitioner.
- *
- * @param contentType
- * name of inner partition or <code>null</code> for outer partition
- */
- protected abstract IDocumentPartitioner createPartitioner(String contentType);
-
- protected void addInnerRegion(FlatNode position) {
- if (outerDocument != null) {
- if (DEBUG) {
- Assert.isTrue(position.offset >= 0, Integer.toString(position.offset));
- }
- DocumentEvent event = new DocumentEvent(outerDocument, outerDocument.getLocalOffset(position.offset), position.length, null);
-
- outerDocument.fireDocumentAboutToBeChanged(event);
- super.addInnerRegion(position);
- outerDocument.fireDocumentChanged(event);
- } else {
- super.addInnerRegion(position);
- }
-
- if (position instanceof ViewNode) {
- // TODO: revisit condition
- IDocumentPartitioner partitioner = createPartitioner(position.type);
- if (partitioner != null) {
- InnerDocumentView innerDocument = new InnerDocumentView(document, (ViewNode) position);
-
- ((ViewNode) position).view = innerDocument;
-
- partitioner.connect(innerDocument);
- innerDocument.setDocumentPartitioner(partitioner);
- innerDocument.addDocumentPartitioningListener(viewListener);
- }
- }
- }
-
- protected void removeInnerRegion(FlatNode position) {
- try {
- if (outerDocument != null) {
- DocumentEvent event = null;
- if (position.offset >= 0) {
- event = new DocumentEvent(outerDocument, outerDocument.getLocalOffset(position.offset), 0, document.get(position.offset,
- position.length));
-
- outerDocument.fireDocumentAboutToBeChanged(event);
- }
- super.removeInnerRegion(position);
- if (position.offset >= 0) {
- outerDocument.fireDocumentChanged(event);
- }
- } else {
- super.removeInnerRegion(position);
- }
-
- if (position instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) position).view;
- if (innerDocument != null) {
- IDocumentPartitioner partitioner = innerDocument.getDocumentPartitioner();
-
- innerDocument.removeDocumentPartitioningListener(viewListener);
- innerDocument.setDocumentPartitioner(null);
- partitioner.disconnect();
- }
- }
- } catch (BadLocationException e) {
- }
- }
-
- protected void deleteInnerRegion(FlatNode position) {
- super.deleteInnerRegion(position);
-
- if (position instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) position).view;
- if (innerDocument != null) {
- IDocumentPartitioner partitioner = innerDocument.getDocumentPartitioner();
-
- innerDocument.removeDocumentPartitioningListener(viewListener);
- innerDocument.setDocumentPartitioner(null);
- partitioner.disconnect();
- }
- }
- }
-
- public void connect(IDocument document) {
- // outerDocument = new OuterDocumentView(document, innerPositions);
-
- super.connect(document);
-
- setOuterPartitioner(createPartitioner(null));
- // IDocumentPartitioner partitioner =
- // partitioner.connect(outerDocument);
- // outerDocument.setDocumentPartitioner(partitioner);
- // outerDocument.addDocumentPartitioningListener(viewListener);
- }
-
- public void disconnect() {
- try {
- if (outerDocument != null) {
- outerDocument.removeDocumentPartitioningListener(viewListener);
-
- IDocumentPartitioner partitioner = outerDocument.getDocumentPartitioner();
-
- outerDocument.setDocumentPartitioner(null);
- partitioner.disconnect();
- }
- } finally {
- // TODO: cleanup listeners
- outerDocument = null;
- }
- }
-
- /*
- * @see org.eclipse.jface.text.IDocumentPartitioner#documentAboutToBeChanged(DocumentEvent)
- */
- public void documentAboutToBeChanged(DocumentEvent event) {
- super.documentAboutToBeChanged(event);
-
- outerDocumentEvent = null;
-
- int offset = event.getOffset();
- int length = event.getLength();
- int end = offset + length;
-
- // find left partition
- int first = computeFlatNodeIndex(offset);
- if (first > 0) {
- FlatNode p = (FlatNode) nodes.get(first - 1);
-
- int right = p.offset + p.length;
- if (offset < right) {
- // change overlaps with partition
- InnerDocumentView innerDocument = null;
- if (p instanceof ViewNode) {
- // TODO: revisit condition
- innerDocument = ((ViewNode) p).view;
- }
-
- if (end < right) {
- if (innerDocument != null) {
- // cahnge completely inside partition
- int start = innerDocument.getLocalOffset(offset);
- innerDocument.fireDocumentAboutToBeChanged(new DocumentEvent(innerDocument, start, length, event.getText()));
- }
-
- return;
- }
-
- if (innerDocument != null) {
- // cut partition at right
- int start = innerDocument.getLocalOffset(offset);
- innerDocument.fireDocumentAboutToBeChanged(new DocumentEvent(innerDocument, start, innerDocument.getLength() - start,
- null));
- }
- }
- }
-
- // find right partition
- int last = computeFlatNodeIndex(end);
- if (last > 0) {
- FlatNode p = (FlatNode) nodes.get(last - 1);
-
- if (p instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) p).view;
- if (innerDocument != null) {
- int right = p.offset + p.length;
- if (end < right) {
- // cut partition at left
- int cut = innerDocument.getLocalOffset(end);
- innerDocument.fireDocumentAboutToBeChanged(new DocumentEvent(innerDocument, 0, cut, null));
- }
- }
- }
- }
-
- if (outerDocument != null) {
- int left = outerDocument.getLocalOffset(offset);
- int right = outerDocument.getLocalOffset(end);
-
- String text = event.getText();
-
- if (left != right || text != null && text.length() > 0) {
- outerDocumentEvent = new DocumentEvent(outerDocument, left, right - left, text);
-
- outerDocument.fireDocumentAboutToBeChanged(outerDocumentEvent);
- }
- }
- }
-
- protected int fixupPartitions(DocumentEvent event) {
- int offset = event.getOffset();
- int length = event.getLength();
- int end = offset + length;
-
- // fixup/notify inner views laying on change boundaries
-
- int first = computeFlatNodeIndex(offset);
- if (first > 0) {
- FlatNode p = (FlatNode) nodes.get(first - 1);
-
- int right = p.offset + p.length;
- if (offset < right) {
- // change overlaps with partition
- if (end < right) {
- // cahnge completely inside partition
- String text = event.getText();
- p.length -= length;
- if (text != null) {
- p.length += text.length();
- }
-
- if (p instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) p).view;
- if (innerDocument != null) {
- int start = innerDocument.getLocalOffset(offset);
- innerDocument.fireDocumentChanged(new DocumentEvent(innerDocument, start, length, text));
- }
- }
- } else {
- // cut partition at right
- int cut = p.offset + p.length - offset;
- p.length -= cut;
-
- if (p instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) p).view;
- if (innerDocument != null) {
- int start = innerDocument.getLocalOffset(offset);
- // TODO: ???fireDocumentAboutToBeChanged???
- innerDocument.fireDocumentChanged(new DocumentEvent(innerDocument, start, cut, null));
- }
- }
- }
- }
- }
-
- int last = computeFlatNodeIndex(end);
- if (last > 0 && first != last) {
- FlatNode p = (FlatNode) nodes.get(last - 1);
-
- int right = p.offset + p.length;
- if (end < right) {
- // cut partition at left
- int cut = end - p.offset;
- p.length -= cut;
- p.offset = offset;
-
- String text = event.getText();
- if (text != null) {
- p.offset += text.length();
- }
-
- if (p instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) p).view;
- if (innerDocument != null) {
- // TODO: ???fireDocumentAboutToBeChanged???
- innerDocument.fireDocumentChanged(new DocumentEvent(innerDocument, 0, cut, null));
- }
- }
-
- --last;
- }
- }
-
- // fixup inner views laying afrer change
-
- String text = event.getText();
- if (text != null) {
- length -= text.length();
- }
-
- for (int i = last, size = nodes.size(); i < size; i++) {
- ((FlatNode) nodes.get(i)).offset -= length;
- }
-
- // delete inner views laying completely inside change boundaries
-
- if (first < last) {
- do {
- deleteInnerRegion((FlatNode) nodes.get(--last));
- } while (first < last);
-
- rememberRegion(offset, 0);
- }
-
- // notify outer view
-
- if (outerDocumentEvent != null) {
- outerDocument.fireDocumentChanged(outerDocumentEvent);
- }
-
- return first;
- }
-
- /*
- * @see org.eclipse.jface.text.IDocumentPartitioner#computePartitioning(int, int)
- */
- protected String getContentType(String parent, String view) {
- if (view != null) {
- return view;
- }
-
- if (parent != null) {
- return parent;
- }
-
- return IDocument.DEFAULT_CONTENT_TYPE;
- }
-
- /*
- * @see org.eclipse.jface.text.IDocumentPartitioner#computePartitioning(int, int)
- */
- public ITypedRegion[] computePartitioning(int offset, int length) {
- List list = new ArrayList();
-
- int end = offset + length;
-
- int index = computeFlatNodeIndex(offset);
- while (true) {
- FlatNode prev = (index > 0) ? (FlatNode) nodes.get(index - 1) : null;
-
- if (prev != null) {
- if (prev.overlapsWith(offset, length)) {
- addInnerPartitions(list, offset, length, prev);
- }
-
- if (end <= prev.offset + prev.length) {
- break;
- }
- }
-
- FlatNode next = (index < nodes.size()) ? (FlatNode) nodes.get(index) : null;
-
- if (next == null || offset < next.offset) {
- addOuterPartitions(list, offset, length, prev, next);
- }
-
- if (next == null) {
- break;
- }
-
- ++index;
- }
-
- return (TypedRegion[]) list.toArray(new TypedRegion[list.size()]);
- }
-
- private void addOuterPartitions(List list, int offset, int length, FlatNode prev, FlatNode next) {
- // limit region
- int start = offset;
- int end = offset + length;
-
- if (prev != null && start < prev.offset + prev.length) {
- start = prev.offset + prev.length;
- }
-
- if (next != null && next.offset < end) {
- end = next.offset;
- }
-
- if (start == end) {
- return;
- }
-
- if (outerDocument == null) {
- list.add(new TypedRegion(start, end - start, getContentType(null, IDocument.DEFAULT_CONTENT_TYPE)));
- return;
- }
-
- try {
- // convert to outer offsets
- start = outerDocument.getLocalOffset(start);
- end = outerDocument.getLocalOffset(end);
- if (end - start >= 0) {//jsurfer insert line
- ITypedRegion[] regions = outerDocument.computePartitioning(start, end - start);
-
- for (int i = 0; i < regions.length; i++) {
- ITypedRegion region = regions[i];
-
- // convert back to parent offsets
- start = outerDocument.getParentOffset(region.getOffset());
- end = start + region.getLength();
-
- if (prev != null) {
- offset = prev.offset + prev.length;
- if (start < offset) {
- start = offset;
- }
- }
-
- if (next != null) {
- offset = next.offset;
- if (offset < end) {
- end = offset;
- }
- }
-
- list.add(new TypedRegion(start, end - start, getContentType(null, region.getType())));
- }
- }
- } catch (BadLocationException x) {
- }
- }
-
- private void addInnerPartitions(List list, int offset, int length, FlatNode position) {
- InnerDocumentView innerDocument = null;
- if (position instanceof ViewNode) {
- // TODO: revisit condition
- innerDocument = ((ViewNode) position).view;
- }
-
- if (innerDocument == null) {
- // simple partition
- list.add(new TypedRegion(position.offset, position.length, getContentType(position.type, null)));
- return;
- }
-
- // multiplexing to inner view
- try {
- // limit region
- int start = Math.max(offset, position.offset);
- int end = Math.min(offset + length, position.offset + position.length);
-
- // convert to document offsets
- length = end - start;
- offset = innerDocument.getLocalOffset(start);
-
- ITypedRegion[] regions = innerDocument.computePartitioning(offset, length);
-
- for (int i = 0; i < regions.length; i++) {
- ITypedRegion region = regions[i];
-
- // convert back to parent offsets
- offset = innerDocument.getParentOffset(region.getOffset());
- length = region.getLength();
-
- list.add(new TypedRegion(offset, length, getContentType(position.type, region.getType())));
- }
- } catch (BadLocationException x) {
- }
- }
-
- /*
- * @see org.eclipse.jface.text.IDocumentPartitioner#getPartition(int)
- */
- public ITypedRegion getPartition(int offset) {
- if (nodes.size() == 0) {
- return getOuterPartition(offset, null, null);
- }
-
- int index = computeFlatNodeIndex(offset);
- if (index < nodes.size()) {
- FlatNode next = (FlatNode) nodes.get(index);
-
- if (offset == next.offset) {
- return getInnerPartition(offset, next);
- }
-
- if (index == 0) {
- return getOuterPartition(offset, null, next);
- }
-
- FlatNode prev = (FlatNode) nodes.get(index - 1);
-
- if (prev.includes(offset)) {
- return getInnerPartition(offset, prev);
- }
-
- return getOuterPartition(offset, prev, next);
- }
-
- FlatNode prev = (FlatNode) nodes.get(nodes.size() - 1);
-
- if (prev.includes(offset)) {
- return getInnerPartition(offset, prev);
- }
-
- return getOuterPartition(offset, prev, null);
- }
-
- protected ITypedRegion getOuterPartition(int offset, FlatNode prev, FlatNode next) {
- try {
- int start, end;
- String type;
-
- if (outerDocument == null) {
- start = 0;
- end = document.getLength();
- type = getContentType(null, IDocument.DEFAULT_CONTENT_TYPE);
- } else {
- ITypedRegion region = outerDocument.getPartition(outerDocument.getLocalOffset(offset));
-
- start = region.getOffset();
- end = start + region.getLength();
-
- // convert to parent offset
- start = outerDocument.getParentOffset(start);
- end = outerDocument.getParentOffset(end);
-
- type = getContentType(null, region.getType());
- }
-
- if (prev != null) {
- offset = prev.offset + prev.length;
- if (start < offset) {
- start = offset;
- }
- }
-
- if (next != null) {
- offset = next.offset;
- if (offset < end) {
- end = offset;
- }
- }
-
- return new TypedRegion(start, end - start, type);
- } catch (BadLocationException x) {
- throw new IllegalArgumentException();
- }
- }
-
- protected ITypedRegion getInnerPartition(int offset, FlatNode position) {
- if (position instanceof ViewNode) {
- // TODO: revisit condition
- InnerDocumentView innerDocument = ((ViewNode) position).view;
-
- if (innerDocument != null) {
- // multiplexing to inner view
- try {
- // convert to inner offset
- ITypedRegion region = innerDocument.getPartition(innerDocument.getLocalOffset(offset));
-
- // convert to parent offset
- offset = innerDocument.getParentOffset(region.getOffset());
-
- return new TypedRegion(offset, region.getLength(), getContentType(position.type, region.getType()));
- } catch (BadLocationException x) {
- }
- }
- }
-
- // simple partition
- return new TypedRegion(position.offset, position.length, position.type);
- }
+ class ViewListener implements IDocumentPartitioningListener,
+ IDocumentPartitioningListenerExtension {
+
+ /*
+ * @see org.eclipse.jface.text.IDocumentPartitioningListener#documentPartitioningChanged(IDocument)
+ */
+ public void documentPartitioningChanged(IDocument document) {
+ IDocumentView view = (IDocumentView) document;
+
+ int start = view.getParentOffset(0);
+ int end = view.getParentOffset(view.getLength());
+
+ rememberRegion(start, end - start);
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IDocumentPartitioningListenerExtension#documentPartitioningChanged(IDocument,
+ * IRegion)
+ */
+ public void documentPartitioningChanged(IDocument document,
+ IRegion region) {
+ IDocumentView view = (IDocumentView) document;
+
+ int offset = region.getOffset();
+
+ int start = view.getParentOffset(offset);
+ int end = view.getParentOffset(offset + region.getLength());
+
+ rememberRegion(start, end - start);
+ }
+ }
+
+ private ViewListener viewListener = new ViewListener();
+
+ private OuterDocumentView outerDocument;
+
+ private DocumentEvent outerDocumentEvent;
+
+ public MultiViewPartitioner(IPartitionTokenScanner scanner) {
+ super(scanner);
+ }
+
+ public void setOuterPartitioner(IDocumentPartitioner partitioner) {
+ if (outerDocument == null) {
+ if (partitioner == null) {
+ return;
+ }
+
+ outerDocument = new OuterDocumentView(document, nodes);
+ outerDocument.addDocumentPartitioningListener(viewListener);
+ }
+
+ IDocumentPartitioner old = outerDocument.getDocumentPartitioner();
+ if (old != null) {
+ outerDocument.setDocumentPartitioner(null);
+ old.disconnect();
+ }
+
+ if (partitioner != null) {
+ partitioner.connect(outerDocument);
+ }
+
+ outerDocument.setDocumentPartitioner(partitioner);
+
+ if (partitioner == null) {
+ outerDocument.removeDocumentPartitioningListener(viewListener);
+ outerDocument = null;
+ }
+ }
+
+ /**
+ * Create subpartitioner.
+ *
+ * @param contentType
+ * name of inner partition or <code>null</code> for outer
+ * partition
+ */
+ protected abstract IDocumentPartitioner createPartitioner(String contentType);
+
+ protected void addInnerRegion(FlatNode position) {
+ if (outerDocument != null) {
+ if (DEBUG) {
+ Assert.isTrue(position.offset >= 0, Integer
+ .toString(position.offset));
+ }
+ int outerOffset = outerDocument.getLocalOffset(position.offset);
+ // axelcl start
+ DocumentEvent event = null;
+ if (outerOffset >= 0) {
+ // axelcl end
+ event = new DocumentEvent(outerDocument, outerOffset,
+ position.length, null);
+
+ outerDocument.fireDocumentAboutToBeChanged(event);
+ }
+ super.addInnerRegion(position);
+ // axelcl start
+ if (event != null) {
+ // axelcl end
+ outerDocument.fireDocumentChanged(event);
+ }
+ } else {
+ super.addInnerRegion(position);
+ }
+
+ if (position instanceof ViewNode) {
+ // TODO: revisit condition
+ IDocumentPartitioner partitioner = createPartitioner(position.type);
+ if (partitioner != null) {
+ InnerDocumentView innerDocument = new InnerDocumentView(
+ document, (ViewNode) position);
+
+ ((ViewNode) position).view = innerDocument;
+
+ partitioner.connect(innerDocument);
+ innerDocument.setDocumentPartitioner(partitioner);
+ innerDocument.addDocumentPartitioningListener(viewListener);
+ }
+ }
+ }
+
+ protected void removeInnerRegion(FlatNode position) {
+ try {
+ if (outerDocument != null) {
+ DocumentEvent event = null;
+ if (position.offset >= 0 && position.length >= 0) {
+ int outerOffset = outerDocument
+ .getLocalOffset(position.offset);
+ if (outerOffset > 0) {
+ event = new DocumentEvent(outerDocument, outerOffset,
+ 0, document.get(position.offset,
+ position.length));
+
+ outerDocument.fireDocumentAboutToBeChanged(event);
+ }
+ }
+ super.removeInnerRegion(position);
+ if (position.offset >= 0) {
+ if (event != null) {
+ outerDocument.fireDocumentChanged(event);
+ }
+ }
+ } else {
+ super.removeInnerRegion(position);
+ }
+
+ if (position instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) position).view;
+ if (innerDocument != null) {
+ IDocumentPartitioner partitioner = innerDocument
+ .getDocumentPartitioner();
+
+ innerDocument
+ .removeDocumentPartitioningListener(viewListener);
+ innerDocument.setDocumentPartitioner(null);
+ partitioner.disconnect();
+ }
+ }
+ } catch (BadLocationException e) {
+ }
+ }
+
+ protected void deleteInnerRegion(FlatNode position) {
+ super.deleteInnerRegion(position);
+
+ if (position instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) position).view;
+ if (innerDocument != null) {
+ IDocumentPartitioner partitioner = innerDocument
+ .getDocumentPartitioner();
+
+ innerDocument.removeDocumentPartitioningListener(viewListener);
+ innerDocument.setDocumentPartitioner(null);
+ partitioner.disconnect();
+ }
+ }
+ }
+
+ public void connect(IDocument document) {
+ // outerDocument = new OuterDocumentView(document, innerPositions);
+
+ super.connect(document);
+
+ setOuterPartitioner(createPartitioner(null));
+ // IDocumentPartitioner partitioner =
+ // partitioner.connect(outerDocument);
+ // outerDocument.setDocumentPartitioner(partitioner);
+ // outerDocument.addDocumentPartitioningListener(viewListener);
+ }
+
+ public void disconnect() {
+ try {
+ if (outerDocument != null) {
+ outerDocument.removeDocumentPartitioningListener(viewListener);
+
+ IDocumentPartitioner partitioner = outerDocument
+ .getDocumentPartitioner();
+
+ outerDocument.setDocumentPartitioner(null);
+ partitioner.disconnect();
+ }
+ } finally {
+ // TODO: cleanup listeners
+ outerDocument = null;
+ }
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IDocumentPartitioner#documentAboutToBeChanged(DocumentEvent)
+ */
+ public void documentAboutToBeChanged(DocumentEvent event) {
+ super.documentAboutToBeChanged(event);
+
+ outerDocumentEvent = null;
+
+ int offset = event.getOffset();
+ int length = event.getLength();
+ int end = offset + length;
+
+ // find left partition
+ int first = computeFlatNodeIndex(offset);
+ if (first > 0) {
+ FlatNode p = (FlatNode) nodes.get(first - 1);
+
+ int right = p.offset + p.length;
+ if (offset < right) {
+ // change overlaps with partition
+ InnerDocumentView innerDocument = null;
+ if (p instanceof ViewNode) {
+ // TODO: revisit condition
+ innerDocument = ((ViewNode) p).view;
+ }
+
+ if (end < right) {
+ if (innerDocument != null) {
+ // cahnge completely inside partition
+ int start = innerDocument.getLocalOffset(offset);
+ innerDocument
+ .fireDocumentAboutToBeChanged(new DocumentEvent(
+ innerDocument, start, length, event
+ .getText()));
+ }
+
+ return;
+ }
+
+ if (innerDocument != null) {
+ // cut partition at right
+ int start = innerDocument.getLocalOffset(offset);
+ innerDocument
+ .fireDocumentAboutToBeChanged(new DocumentEvent(
+ innerDocument, start, innerDocument
+ .getLength()
+ - start, null));
+ }
+ }
+ }
+
+ // find right partition
+ int last = computeFlatNodeIndex(end);
+ if (last > 0) {
+ FlatNode p = (FlatNode) nodes.get(last - 1);
+
+ if (p instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) p).view;
+ if (innerDocument != null) {
+ int right = p.offset + p.length;
+ if (end < right) {
+ // cut partition at left
+ int cut = innerDocument.getLocalOffset(end);
+ innerDocument
+ .fireDocumentAboutToBeChanged(new DocumentEvent(
+ innerDocument, 0, cut, null));
+ }
+ }
+ }
+ }
+
+ if (outerDocument != null) {
+ int left = outerDocument.getLocalOffset(offset);
+ int right = outerDocument.getLocalOffset(end);
+
+ String text = event.getText();
+
+ if (left >= 0 && (right - left >= 0)) {
+ if (left != right || text != null && text.length() > 0) {
+ outerDocumentEvent = new DocumentEvent(outerDocument, left,
+ right - left, text);
+
+ outerDocument
+ .fireDocumentAboutToBeChanged(outerDocumentEvent);
+ }
+ }
+ }
+ }
+
+ protected int fixupPartitions(DocumentEvent event) {
+ int offset = event.getOffset();
+ int length = event.getLength();
+ int end = offset + length;
+
+ // fixup/notify inner views laying on change boundaries
+
+ int first = computeFlatNodeIndex(offset);
+ if (first > 0) {
+ FlatNode p = (FlatNode) nodes.get(first - 1);
+
+ int right = p.offset + p.length;
+ if (offset < right) {
+ // change overlaps with partition
+ if (end < right) {
+ // cahnge completely inside partition
+ String text = event.getText();
+ p.length -= length;
+ if (text != null) {
+ p.length += text.length();
+ }
+
+ if (p instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) p).view;
+ if (innerDocument != null) {
+ int start = innerDocument.getLocalOffset(offset);
+ innerDocument
+ .fireDocumentChanged(new DocumentEvent(
+ innerDocument, start, length, text));
+ }
+ }
+ } else {
+ // cut partition at right
+ int cut = p.offset + p.length - offset;
+ p.length -= cut;
+
+ if (p instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) p).view;
+ if (innerDocument != null) {
+ int start = innerDocument.getLocalOffset(offset);
+ // TODO: ???fireDocumentAboutToBeChanged???
+ innerDocument
+ .fireDocumentChanged(new DocumentEvent(
+ innerDocument, start, cut, null));
+ }
+ }
+ }
+ }
+ }
+
+ int last = computeFlatNodeIndex(end);
+ if (last > 0 && first != last) {
+ FlatNode p = (FlatNode) nodes.get(last - 1);
+
+ int right = p.offset + p.length;
+ if (end < right) {
+ // cut partition at left
+ int cut = end - p.offset;
+ p.length -= cut;
+ p.offset = offset;
+
+ String text = event.getText();
+ if (text != null) {
+ p.offset += text.length();
+ }
+
+ if (p instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) p).view;
+ if (innerDocument != null) {
+ // TODO: ???fireDocumentAboutToBeChanged???
+ innerDocument.fireDocumentChanged(new DocumentEvent(
+ innerDocument, 0, cut, null));
+ }
+ }
+
+ --last;
+ }
+ }
+
+ // fixup inner views laying afrer change
+
+ String text = event.getText();
+ if (text != null) {
+ length -= text.length();
+ }
+
+ for (int i = last, size = nodes.size(); i < size; i++) {
+ ((FlatNode) nodes.get(i)).offset -= length;
+ }
+
+ // delete inner views laying completely inside change boundaries
+
+ if (first < last) {
+ do {
+ deleteInnerRegion((FlatNode) nodes.get(--last));
+ } while (first < last);
+
+ rememberRegion(offset, 0);
+ }
+
+ // notify outer view
+
+ if (outerDocumentEvent != null) {
+ outerDocument.fireDocumentChanged(outerDocumentEvent);
+ }
+
+ return first;
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IDocumentPartitioner#computePartitioning(int,
+ * int)
+ */
+ protected String getContentType(String parent, String view) {
+ if (view != null) {
+ return view;
+ }
+
+ if (parent != null) {
+ return parent;
+ }
+
+ return IDocument.DEFAULT_CONTENT_TYPE;
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IDocumentPartitioner#computePartitioning(int,
+ * int)
+ */
+ public ITypedRegion[] computePartitioning(int offset, int length) {
+ List list = new ArrayList();
+ // if (DEBUG) {
+ // if (length>=9400) {
+ // length--;
+ // }
+ // System.out.print("MultiViewPartitioner::computePartitioning - Offset:
+ // ");
+ // System.out.print(offset);
+ // System.out.print(", Length: ");
+ // System.out.print(length);
+ // System.out.println("");
+ // }
+ int end = offset + length;
+
+ int index = computeFlatNodeIndex(offset);
+ while (true) {
+ FlatNode prev = (index > 0) ? (FlatNode) nodes.get(index - 1)
+ : null;
+
+ if (prev != null) {
+ if (prev.overlapsWith(offset, length)) {
+ addInnerPartitions(list, offset, length, prev);
+ }
+
+ if (end <= prev.offset + prev.length) {
+ break;
+ }
+ }
+
+ FlatNode next = (index < nodes.size()) ? (FlatNode) nodes
+ .get(index) : null;
+
+ if (next == null || offset < next.offset) {
+ addOuterPartitions(list, offset, length, prev, next);
+ }
+
+ if (next == null) {
+ break;
+ }
+
+ ++index;
+ }
+ // if (DEBUG) {
+ // showList(list);
+ // }
+
+ return (TypedRegion[]) list.toArray(new TypedRegion[list.size()]);
+ }
+
+ private void showList(List list) {
+ try {
+ throw new NullPointerException();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ System.out.println(">>>>>List start");
+ TypedRegion temp;
+ for (int i = 0; i < list.size(); i++) {
+ temp = (TypedRegion) list.get(i);
+ System.out.print("Offset: ");
+ System.out.print(temp.getOffset());
+ System.out.print(", Length: ");
+ System.out.print(temp.getLength());
+ System.out.print(", Type: ");
+ System.out.print(temp.getType());
+ System.out.println("");
+ }
+ System.out.println("<<<<<List end");
+ }
+
+ private void addOuterPartitions(List list, int offset, int length,
+ FlatNode prev, FlatNode next) {
+ // limit region
+ int start = offset;
+ int end = offset + length;
+
+ if (prev != null && start < prev.offset + prev.length) {
+ start = prev.offset + prev.length;
+ }
+
+ if (next != null && next.offset < end) {
+ end = next.offset;
+ }
+
+ if (start == end) {
+ return;
+ }
+
+ if (outerDocument == null) {
+ // if (DEBUG) {
+ // if (end - start<0) {
+ // throw new IndexOutOfBoundsException();
+ // }
+ // }
+ list.add(new TypedRegion(start, end - start, getContentType(null,
+ IDocument.DEFAULT_CONTENT_TYPE)));
+ return;
+ }
+
+ try {
+ // convert to outer offsets
+ start = outerDocument.getLocalOffset(start);
+ end = outerDocument.getLocalOffset(end);
+ int len = end - start;
+ if (len >= 0) {
+ ITypedRegion[] regions = null;
+ try {
+ regions = outerDocument.computePartitioning(start, len);
+ } catch (Exception e) {
+ // nasty workaround, which prevents cursor from moveing
+ // backwards in the editor
+ // but doesn't solve the partitioning problem
+ regions = new ITypedRegion[0];
+ System.out
+ .println("MultiViewerPartitioner#addOuterPartitions failure\n"
+ + "start:"
+ + start
+ + " length:"
+ + len
+ + "\n" + outerDocument.get(start, len));
+ }
+ for (int i = 0; i < regions.length; i++) {
+ ITypedRegion region = regions[i];
+
+ // convert back to parent offsets
+ start = outerDocument.getParentOffset(region.getOffset());
+ end = start + region.getLength();
+
+ if (prev != null) {
+ offset = prev.offset + prev.length;
+ if (start < offset) {
+ start = offset;
+ }
+ }
+
+ if (next != null) {
+ offset = next.offset;
+ if (offset < end) {
+ end = offset;
+ }
+ }
+ // if (DEBUG) {
+ // if (end - start<0) {
+ // showList(list);
+ // System.out.print("MultiViewPartitioner::addOuterPartitions
+ // - Offset: ");
+ // System.out.print(offset);
+ // System.out.print(", Start: ");
+ // System.out.print(start);
+ // System.out.print(", End: ");
+ // System.out.print(end);
+ // System.out.print(", Type: ");
+ // System.out.print(region.getType());
+ // System.out.println("");
+ // throw new IndexOutOfBoundsException();
+ // }
+ // }
+ list.add(new TypedRegion(start, end - start,
+ getContentType(null, region.getType())));
+ }
+ }
+ } catch (BadLocationException x) {
+ }
+ }
+
+ private void addInnerPartitions(List list, int offset, int length,
+ FlatNode position) {
+ InnerDocumentView innerDocument = null;
+ if (position instanceof ViewNode) {
+ // TODO: revisit condition
+ innerDocument = ((ViewNode) position).view;
+ }
+
+ if (innerDocument == null) {
+ // simple partition
+ // if (DEBUG) {
+ // if (position.length<0) {
+ // throw new IndexOutOfBoundsException();
+ // }
+ // }
+ list.add(new TypedRegion(position.offset, position.length,
+ getContentType(position.type, null)));
+ return;
+ }
+
+ // multiplexing to inner view
+ try {
+ // limit region
+ int start = Math.max(offset, position.offset);
+ int end = Math.min(offset + length, position.offset
+ + position.length);
+
+ // convert to document offsets
+ length = end - start;
+ offset = innerDocument.getLocalOffset(start);
+
+ ITypedRegion[] regions = innerDocument.computePartitioning(offset,
+ length);
+
+ for (int i = 0; i < regions.length; i++) {
+ ITypedRegion region = regions[i];
+
+ // convert back to parent offsets
+ offset = innerDocument.getParentOffset(region.getOffset());
+ length = region.getLength();
+ // if (DEBUG) {
+ // if (length<0) {
+ // throw new IndexOutOfBoundsException();
+ // }
+ // }
+ list.add(new TypedRegion(offset, length, getContentType(
+ position.type, region.getType())));
+ }
+ } catch (BadLocationException x) {
+ }
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IDocumentPartitioner#getPartition(int)
+ */
+ public ITypedRegion getPartition(int offset) {
+ if (nodes.size() == 0) {
+ return getOuterPartition(offset, null, null);
+ }
+
+ int index = computeFlatNodeIndex(offset);
+ if (index < nodes.size()) {
+ FlatNode next = (FlatNode) nodes.get(index);
+
+ if (offset == next.offset) {
+ return getInnerPartition(offset, next);
+ }
+
+ if (index == 0) {
+ return getOuterPartition(offset, null, next);
+ }
+
+ FlatNode prev = (FlatNode) nodes.get(index - 1);
+
+ if (prev.includes(offset)) {
+ return getInnerPartition(offset, prev);
+ }
+
+ return getOuterPartition(offset, prev, next);
+ }
+
+ FlatNode prev = (FlatNode) nodes.get(nodes.size() - 1);
+
+ if (prev.includes(offset)) {
+ return getInnerPartition(offset, prev);
+ }
+
+ return getOuterPartition(offset, prev, null);
+ }
+
+ protected ITypedRegion getOuterPartition(int offset, FlatNode prev,
+ FlatNode next) {
+ try {
+ int start, end;
+ String type;
+
+ if (outerDocument == null) {
+ start = 0;
+ end = document.getLength();
+ type = getContentType(null, IDocument.DEFAULT_CONTENT_TYPE);
+ } else {
+ int outerOffset = outerDocument.getLocalOffset(offset);
+ // axelcl start
+ if (outerOffset < 0) {
+ start = 0;
+ end = document.getLength();
+ type = getContentType(null, IDocument.DEFAULT_CONTENT_TYPE);
+ } else {
+ // axelcl end
+ ITypedRegion region = outerDocument
+ .getPartition(outerOffset);
+
+ start = region.getOffset();
+ end = start + region.getLength();
+
+ // convert to parent offset
+ start = outerDocument.getParentOffset(start);
+ end = outerDocument.getParentOffset(end);
+
+ type = getContentType(null, region.getType());
+ }
+ }
+
+ if (prev != null) {
+ offset = prev.offset + prev.length;
+ if (start < offset) {
+ start = offset;
+ }
+ }
+
+ if (next != null) {
+ offset = next.offset;
+ if (offset < end) {
+ end = offset;
+ }
+ }
+
+ return new TypedRegion(start, end - start, type);
+ } catch (BadLocationException x) {
+ x.printStackTrace();
+ throw new IllegalArgumentException();
+ }
+ }
+
+ protected ITypedRegion getInnerPartition(int offset, FlatNode position) {
+ if (position instanceof ViewNode) {
+ // TODO: revisit condition
+ InnerDocumentView innerDocument = ((ViewNode) position).view;
+
+ if (innerDocument != null) {
+ // multiplexing to inner view
+ try {
+ // convert to inner offset
+ ITypedRegion region = innerDocument
+ .getPartition(innerDocument.getLocalOffset(offset));
+
+ // convert to parent offset
+ offset = innerDocument.getParentOffset(region.getOffset());
+
+ return new TypedRegion(offset, region.getLength(),
+ getContentType(position.type, region.getType()));
+ } catch (BadLocationException x) {
+ }
+ }
+ }
+
+ // simple partition
+ return new TypedRegion(position.offset, position.length, position.type);
+ }
}
\ No newline at end of file
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