diff options
Diffstat (limited to 'core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/DocumentAdapter.java')
| -rw-r--r-- | core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/DocumentAdapter.java | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/DocumentAdapter.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/DocumentAdapter.java deleted file mode 100644 index 2080cc5f831..00000000000 --- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/DocumentAdapter.java +++ /dev/null @@ -1,486 +0,0 @@ -package org.eclipse.cdt.internal.ui.editor; - -/********************************************************************** - * Copyright (c) 2002,2003 Rational Software Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Common Public License v0.5 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/cpl-v05.html - * - * Contributors: - * Rational Software - Initial API and implementation -***********************************************************************/ - - -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; - -import org.eclipse.cdt.core.model.BufferChangedEvent; -import org.eclipse.cdt.core.model.CModelException; -import org.eclipse.cdt.core.model.IBuffer; -import org.eclipse.cdt.core.model.IBufferChangedListener; -import org.eclipse.cdt.core.model.IOpenable; -import org.eclipse.core.resources.IResource; -import org.eclipse.core.runtime.CoreException; -import org.eclipse.core.runtime.IProgressMonitor; -import org.eclipse.core.runtime.IStatus; -import org.eclipse.jface.text.BadLocationException; -import org.eclipse.jface.text.DocumentEvent; -import org.eclipse.jface.text.IDocument; -import org.eclipse.jface.text.IDocumentListener; -import org.eclipse.jface.text.ILineTracker; -import org.eclipse.jface.text.IRegion; -import org.eclipse.jface.util.Assert; -import org.eclipse.swt.widgets.Display; - - -/** - * Adapts <code>IDocument</code> to <code>IBuffer</code>. Uses the - * same algorithm as the text widget to determine the buffer's line delimiter. - * All text inserted into the buffer is converted to this line delimiter. - * This class is <code>public</code> for test purposes only. - * - * This class is similar to the JDT DocumentAdapter class. - */ -public class DocumentAdapter implements IBuffer, IDocumentListener { - - /** - * Internal implementation of a NULL instanceof IBuffer. - */ - static private class NullBuffer implements IBuffer { - - public void addBufferChangedListener(IBufferChangedListener listener) {} - - public void append(char[] text) {} - - public void append(String text) {} - - public void close() {} - - public char getChar(int position) { - return 0; - } - - public char[] getCharacters() { - return null; - } - - public String getContents() { - return null; - } - - public int getLength() { - return 0; - } - - public IOpenable getOwner() { - return null; - } - - public String getText(int offset, int length) { - return null; - } - - public IResource getUnderlyingResource() { - return null; - } - - public boolean hasUnsavedChanges() { - return false; - } - - public boolean isClosed() { - return false; - } - - public boolean isReadOnly() { - return true; - } - - public void removeBufferChangedListener(IBufferChangedListener listener) {} - - public void replace(int position, int length, char[] text) {} - - public void replace(int position, int length, String text) {} - - public void save(IProgressMonitor progress, boolean force) throws CModelException {} - - public void setContents(char[] contents) {} - - public void setContents(String contents) {} - }; - - - /** NULL implementing <code>IBuffer</code> */ - public final static IBuffer NULL= new NullBuffer(); - /* - * @see IBuffer#addBufferChangedListener(IBufferChangedListener) - */ - public void addBufferChangedListener(IBufferChangedListener listener) { - Assert.isNotNull(listener); - if (!fBufferListeners.contains(listener)) - fBufferListeners.add(listener); - } - /** - * Executes a document set content call in the ui thread. - */ - protected class DocumentSetCommand implements Runnable { - - private String fContents; - - public void run() { - fDocument.set(fContents); - } - - public void set(String contents) { - fContents= contents; - Display.getDefault().syncExec(this); - } - }; - /** - * Executes a document replace call in the ui thread. - */ - protected class DocumentReplaceCommand implements Runnable { - - private int fOffset; - private int fLength; - private String fText; - - public void run() { - try { - fDocument.replace(fOffset, fLength, fText); - } catch (BadLocationException x) { - // ignore - } - } - - public void replace(int offset, int length, String text) { - fOffset= offset; - fLength= length; - fText= text; - Display.getDefault().syncExec(this); - } - }; - - private IOpenable fOwner; - IDocument fDocument; - private DocumentSetCommand fSetCmd= new DocumentSetCommand(); - private DocumentReplaceCommand fReplaceCmd= new DocumentReplaceCommand(); - - private Object fProviderKey; - private CDocumentProvider fProvider; - private String fLineDelimiter; - private ILineTracker fLineTracker; - - private List fBufferListeners= new ArrayList(3); - - private IStatus fStatus; - - - public DocumentAdapter(IOpenable owner, IDocument document, ILineTracker lineTracker, CDocumentProvider provider, Object providerKey) { - - Assert.isNotNull(document); - Assert.isNotNull(lineTracker); - - fOwner= owner; - fDocument= document; - fLineTracker= lineTracker; - fProvider= provider; - fProviderKey= providerKey; - - fDocument.addPrenotifiedDocumentListener(this); - - } - /** - * Sets the status of this document adapter. - */ - public void setStatus(IStatus status) { - fStatus= status; - } - - /** - * Returns the status of this document adapter. - */ - public IStatus getStatus() { - return fStatus; - } - - /** - * Returns the adapted document. - * - * @return the adapted document - */ - public IDocument getDocument() { - return fDocument; - } - /** - * Returns the line delimiter of this buffer. As a document has a set of - * valid line delimiters, this set must be reduced to size 1. - */ - protected String getLineDelimiter() { - - if (fLineDelimiter == null) { - - try { - fLineDelimiter= fDocument.getLineDelimiter(0); - } catch (BadLocationException x) { - } - - if (fLineDelimiter == null) { - /* - * Follow up fix for: 1GF5UU0: ITPJUI:WIN2000 - "Organize Imports" in java editor inserts lines in wrong format - * The line delimiter must always be a legal document line delimiter. - */ - String sysLineDelimiter= System.getProperty("line.separator"); //$NON-NLS-1$ - String[] delimiters= fDocument.getLegalLineDelimiters(); - Assert.isTrue(delimiters.length > 0); - for (int i= 0; i < delimiters.length; i++) { - if (delimiters[i].equals(sysLineDelimiter)) { - fLineDelimiter= sysLineDelimiter; - break; - } - } - - if (fLineDelimiter == null) { - // system line delimiter is not a legal document line delimiter - fLineDelimiter= delimiters[0]; - } - } - } - - return fLineDelimiter; - } - - /** - * Converts the given string to the line delimiter of this buffer. - * This method is <code>public</code> for test purposes only. - */ - public String normalize(String text) { - fLineTracker.set(text); - - int lines= fLineTracker.getNumberOfLines(); - if (lines <= 1) - return text; - - StringBuffer buffer= new StringBuffer(text); - - try { - IRegion previous= fLineTracker.getLineInformation(0); - for (int i= 1; i < lines; i++) { - int lastLineEnd= previous.getOffset() + previous.getLength(); - int lineStart= fLineTracker.getLineInformation(i).getOffset(); - fLineTracker.replace(lastLineEnd, lineStart - lastLineEnd, getLineDelimiter()); - buffer.replace(lastLineEnd, lineStart, getLineDelimiter()); - previous= fLineTracker.getLineInformation(i); - } - - // last line - String delimiter= fLineTracker.getLineDelimiter(lines -1); - if (delimiter != null && delimiter.length() > 0) - buffer.replace(previous.getOffset() + previous.getLength(), buffer.length(), getLineDelimiter()); - - return buffer.toString(); - } catch (BadLocationException x) { - } - - return text; - } - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#append(char) - */ - public void append(char[] text) { - append(new String(text)); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#append(java.lang.String) - */ - public void append(String text) { - fReplaceCmd.replace(fDocument.getLength(), 0, normalize(text)); - } - - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#close() - */ - public void close() { - if (isClosed()) - return; - - IDocument d= fDocument; - fDocument= null; - d.removePrenotifiedDocumentListener(this); - - fireBufferChanged(new BufferChangedEvent(this, 0, 0, null)); - fBufferListeners.clear(); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getChar(int) - */ - public char getChar(int position) { - try { - return fDocument.getChar(position); - } catch (BadLocationException x) { - throw new ArrayIndexOutOfBoundsException(); - } - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getCharacters() - */ - public char[] getCharacters() { - String content= getContents(); - return content == null ? null : content.toCharArray(); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getContents() - */ - public String getContents() { - return fDocument.get(); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getLength() - */ - public int getLength() { - return fDocument.getLength(); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getOwner() - */ - public IOpenable getOwner() { - return (IOpenable) fOwner; - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getText(int, int) - */ - public String getText(int offset, int length) { - try { - return fDocument.get(offset, length); - } catch (BadLocationException x) { - throw new ArrayIndexOutOfBoundsException(); - } - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#getUnderlyingResource() - */ - public IResource getUnderlyingResource() { - //return null; - return fProvider != null ? fProvider.getUnderlyingResource(fProviderKey) : null; - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#hasUnsavedChanges() - */ - public boolean hasUnsavedChanges() { - //return false; - return fProvider != null ? fProvider.canSaveDocument(fProviderKey) : false; - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#isClosed() - */ - public boolean isClosed() { - return fDocument == null; - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#isReadOnly() - */ - public boolean isReadOnly() { - //return false; - IResource resource= getUnderlyingResource(); - return resource == null ? true : resource.isReadOnly(); - } - - /* - * @see IBuffer#removeBufferChangedListener(IBufferChangedListener) - */ - public void removeBufferChangedListener(IBufferChangedListener listener) { - Assert.isNotNull(listener); - fBufferListeners.remove(listener); - } - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#replace(int, int, char) - */ - public void replace(int position, int length, char[] text) { - replace(position, length, new String(text)); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#replace(int, int, java.lang.String) - */ - public void replace(int position, int length, String text) { - fReplaceCmd.replace(position, length, normalize(text)); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#save(org.eclipse.core.runtime.IProgressMonitor, boolean) - */ - public void save(IProgressMonitor progress, boolean force) throws CModelException { - if (fProvider != null) { - try { - fProvider.saveDocumentContent(progress, fProviderKey, fDocument, force); - } catch (CoreException e) { - throw new CModelException(e); - } - } - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#setContents(char) - */ - public void setContents(char[] contents) { - setContents(new String(contents)); - } - - /** - * @see org.eclipse.cdt.internal.core.model.IBuffer#setContents(java.lang.String) - */ - public void setContents(String contents) { - int oldLength= fDocument.getLength(); - - if (contents == null) { - - if (oldLength != 0) - fSetCmd.set(""); //$NON-NLS-1$ - - } else { - - // set only if different - String newContents= normalize(contents); - int newLength= newContents.length(); - - if (oldLength != newLength || !newContents.equals(fDocument.get())) - fSetCmd.set(newContents); - } - } - /* - * @see IDocumentListener#documentAboutToBeChanged(DocumentEvent) - */ - public void documentAboutToBeChanged(DocumentEvent event) { - // there is nothing to do here - } - - /* - * @see IDocumentListener#documentChanged(DocumentEvent) - */ - public void documentChanged(DocumentEvent event) { - fireBufferChanged(new BufferChangedEvent(this, event.getOffset(), event.getLength(), event.getText())); - } - - private void fireBufferChanged(BufferChangedEvent event) { - if (fBufferListeners != null && fBufferListeners.size() > 0) { - Iterator e= new ArrayList(fBufferListeners).iterator(); - while (e.hasNext()) - ((IBufferChangedListener) e.next()).bufferChanged(event); - } - } - -} |