diff options
Diffstat (limited to 'experimental/compensator/org.eclipse.fx.text.ui/src/org/eclipse/jface/text/TextViewer.java')
| -rw-r--r-- | experimental/compensator/org.eclipse.fx.text.ui/src/org/eclipse/jface/text/TextViewer.java | 765 |
1 files changed, 0 insertions, 765 deletions
diff --git a/experimental/compensator/org.eclipse.fx.text.ui/src/org/eclipse/jface/text/TextViewer.java b/experimental/compensator/org.eclipse.fx.text.ui/src/org/eclipse/jface/text/TextViewer.java deleted file mode 100644 index 513c96eb6..000000000 --- a/experimental/compensator/org.eclipse.fx.text.ui/src/org/eclipse/jface/text/TextViewer.java +++ /dev/null @@ -1,765 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2014 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - * Tom Eicher (Avaloq Evolution AG) - block selection mode - * Markus Schorn <markus.schorn@windriver.com> - shift with trailing empty line - https://bugs.eclipse.org/325438 - *******************************************************************************/ -package org.eclipse.jface.text; - -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; - -import javafx.scene.layout.AnchorPane; - -import org.eclipse.fx.ui.controls.styledtext.StyleRange; -import org.eclipse.fx.ui.controls.styledtext.StyledTextArea; -import org.eclipse.jface.text.projection.ChildDocument; -import org.eclipse.jface.text.projection.ChildDocumentManager; -import org.eclipse.jface.viewers.Viewer; - -public class TextViewer extends Viewer implements - ITextViewer, ITextViewerExtension, ITextViewerExtension2, ITextViewerExtension4, ITextViewerExtension6, ITextViewerExtension7, ITextViewerExtension8 - /*, - IEditingSupportRegistry, ITextOperationTarget, ITextOperationTargetExtension, - IWidgetTokenOwner, IWidgetTokenOwnerExtension, IPostSelectionProvider*/ { - private StyledTextArea fTextWidget; - private IDocument fVisibleDocument; - private VisibleDocumentListener fVisibleDocumentListener= new VisibleDocumentListener(); - private ISlaveDocumentManager fSlaveDocumentManager; - private IDocumentInformationMapping fInformationMapping; - private IDocumentAdapter fDocumentAdapter; - private WidgetCommand fWidgetCommand= new WidgetCommand(); - protected List fTextListeners; - private int fRedrawCounter= 0; - private IRegion fLastSentSelectionChange; - private String fPartitioning; - private IDocument fDocument; - private boolean fReplaceTextPresentation; - private DocumentRewriteSessionListener fDocumentRewriteSessionListener= new DocumentRewriteSessionListener(); - private IRewriteTarget fRewriteTarget; - private ViewerState fViewerState; - private List fTextInputListeners; - protected Position fMarkPosition; - private final String MARK_POSITION_CATEGORY="__mark_category_" + hashCode(); //$NON-NLS-1$ - private final IPositionUpdater fMarkPositionUpdater= new DefaultPositionUpdater(MARK_POSITION_CATEGORY); - private List fTextPresentationListeners; - - public TextViewer() { - createControl(); - } - - protected void createControl() { - fTextWidget = createTextWidget(); - AnchorPane.setLeftAnchor(fTextWidget, 0.0); - AnchorPane.setRightAnchor(fTextWidget, 0.0); - AnchorPane.setTopAnchor(fTextWidget, 0.0); - AnchorPane.setBottomAnchor(fTextWidget, 0.0); - getChildren().add(fTextWidget); - } - - public StyledTextArea getTextWidget() { - return fTextWidget; - } - - protected StyledTextArea createTextWidget() { - StyledTextArea styledText= new StyledTextArea(); - styledText.setLineRulerVisible(true); -// styledText.setLeftMargin(Math.max(styledText.getLeftMargin(), 2)); - return styledText; - } - - public void setInput(Object input) { - - IDocument document= null; - if (input instanceof IDocument) - document= (IDocument) input; - - setDocument(document); - } - - public Object getInput() { - return getDocument(); - } - - public void setDocumentPartitioning(String partitioning) { - fPartitioning= partitioning; - } - - /** - * Sets this viewer's visible document. The visible document represents the - * visible region of the viewer's input document. - * - * @param document the visible document - */ - protected void setVisibleDocument(IDocument document) { - if (fVisibleDocument == document && fVisibleDocument instanceof ChildDocument) { - // optimization for new child documents - return; - } - - if (fVisibleDocument != null) { - if (fVisibleDocumentListener != null) - fVisibleDocument.removeDocumentListener(fVisibleDocumentListener); - if (fVisibleDocument != document) - freeSlaveDocument(fVisibleDocument); - } - - fVisibleDocument= document; - initializeDocumentInformationMapping(fVisibleDocument); - - initializeWidgetContents(); - -//TODO needs porting -// fFindReplaceDocumentAdapter= null; - if (fVisibleDocument != null && fVisibleDocumentListener != null) - fVisibleDocument.addDocumentListener(fVisibleDocumentListener); - } - - public IDocument getDocument() { - return fDocument; - } - - public void setDocument(IDocument document) { - fReplaceTextPresentation= true; - fireInputDocumentAboutToBeChanged(fDocument, document); - - IDocument oldDocument= fDocument; - fDocument= document; - - setVisibleDocument(fDocument); -//TODO needs porting -// resetPlugins(); - inputChanged(fDocument, oldDocument); - - fireInputDocumentChanged(oldDocument, fDocument); - fLastSentSelectionChange= null; - fReplaceTextPresentation= false; - } - - public void setDocument(IDocument document, int modelRangeOffset, int modelRangeLength) { - - fReplaceTextPresentation= true; - fireInputDocumentAboutToBeChanged(fDocument, document); - - IDocument oldDocument= fDocument; - fDocument= document; - - try { - - IDocument slaveDocument= createSlaveDocument(document); - updateSlaveDocument(slaveDocument, modelRangeOffset, modelRangeLength); - setVisibleDocument(slaveDocument); - - } catch (BadLocationException x) { -// throw new IllegalArgumentException(JFaceTextMessages.getString("TextViewer.error.invalid_visible_region_1")); //$NON-NLS-1$ - throw new IllegalArgumentException(); - } - - //TODO needs porting -// resetPlugins(); - inputChanged(fDocument, oldDocument); - - fireInputDocumentChanged(oldDocument, fDocument); - fLastSentSelectionChange= null; - fReplaceTextPresentation= false; - } - - /** - * Creates a slave document for the given document if there is a slave document manager - * associated with this viewer. - * - * @param document the master document - * @return the newly created slave document - * @since 2.1 - */ - protected IDocument createSlaveDocument(IDocument document) { - ISlaveDocumentManager manager= getSlaveDocumentManager(); - if (manager != null) { - if (manager.isSlaveDocument(document)) - return document; - return manager.createSlaveDocument(document); - } - return document; - } - - /** - * Updates the given slave document to show the specified range of its master document. - * - * @param slaveDocument the slave document - * @param modelRangeOffset the offset of the master document range - * @param modelRangeLength the length of the master document range - * @return <code>true</code> if the slave has been adapted successfully - * @throws BadLocationException in case the specified range is not valid in the master document - * @since 3.0 - */ - protected boolean updateSlaveDocument(IDocument slaveDocument, int modelRangeOffset, int modelRangeLength) throws BadLocationException { - return updateVisibleDocument(slaveDocument, modelRangeOffset, modelRangeLength); - } - - /** - * Sets the given slave document to the specified range of its master document. - * - * @param visibleDocument the slave document - * @param visibleRegionOffset the offset of the master document range - * @param visibleRegionLength the length of the master document range - * @return <code>true</code> if the slave has been adapted successfully - * @throws BadLocationException in case the specified range is not valid in the master document - * @since 2.1 - * @deprecated use <code>updateSlaveDocument</code> instead - */ - protected boolean updateVisibleDocument(IDocument visibleDocument, int visibleRegionOffset, int visibleRegionLength) throws BadLocationException { - if (visibleDocument instanceof ChildDocument) { - ChildDocument childDocument= (ChildDocument) visibleDocument; - - IDocument document= childDocument.getParentDocument(); - int line= document.getLineOfOffset(visibleRegionOffset); - int offset= document.getLineOffset(line); - int length= (visibleRegionOffset - offset) + visibleRegionLength; - - Position parentRange= childDocument.getParentDocumentRange(); - if (offset != parentRange.getOffset() || length != parentRange.getLength()) { - childDocument.setParentDocumentRange(offset, length); - return true; - } - } - return false; - } - - public IRegion getVisibleRegion() { - - IDocument document= getVisibleDocument(); - if (document instanceof ChildDocument) { - Position p= ((ChildDocument) document).getParentDocumentRange(); - return new Region(p.getOffset(), p.getLength()); - } - - return new Region(0, document == null ? 0 : document.getLength()); - } - - protected void fireInputDocumentAboutToBeChanged(IDocument oldInput, IDocument newInput) { - List listener= fTextInputListeners; - if (listener != null) { - for (int i= 0; i < listener.size(); i++) { - ITextInputListener l= (ITextInputListener) listener.get(i); - l.inputDocumentAboutToBeChanged(oldInput, newInput); - } - } - } - - protected void fireInputDocumentChanged(IDocument oldInput, IDocument newInput) { - List listener= fTextInputListeners; - if (listener != null) { - for (int i= 0; i < listener.size(); i++) { - ITextInputListener l= (ITextInputListener) listener.get(i); - l.inputDocumentChanged(oldInput, newInput); - } - } - } - - protected IDocument getVisibleDocument() { - return fVisibleDocument; - } - - protected void freeSlaveDocument(IDocument slave) { - ISlaveDocumentManager manager= getSlaveDocumentManager(); - if (manager != null && manager.isSlaveDocument(slave)) - manager.freeSlaveDocument(slave); - } - - protected ISlaveDocumentManager getSlaveDocumentManager() { - if (fSlaveDocumentManager == null) - fSlaveDocumentManager= createSlaveDocumentManager(); - return fSlaveDocumentManager; - } - - protected ISlaveDocumentManager createSlaveDocumentManager() { - return new ChildDocumentManager(); - } - - protected void initializeDocumentInformationMapping(IDocument visibleDocument) { - ISlaveDocumentManager manager= getSlaveDocumentManager(); - fInformationMapping= manager == null ? null : manager.createMasterSlaveMapping(visibleDocument); - } - - protected void inputChanged(Object newInput, Object oldInput) { - - IDocument oldDocument= (IDocument) oldInput; - if (oldDocument != null) { - - if (fMarkPosition != null && !fMarkPosition.isDeleted()) - oldDocument.removePosition(fMarkPosition); - - try { - oldDocument.removePositionUpdater(fMarkPositionUpdater); - oldDocument.removePositionCategory(MARK_POSITION_CATEGORY); - - } catch (BadPositionCategoryException e) { - } - } - - fMarkPosition= null; - - if (oldDocument instanceof IDocumentExtension4) { - IDocumentExtension4 document= (IDocumentExtension4) oldDocument; - document.removeDocumentRewriteSessionListener(fDocumentRewriteSessionListener); - } - -// super.inputChanged(newInput, oldInput); - - if (newInput instanceof IDocumentExtension4) { - IDocumentExtension4 document= (IDocumentExtension4) newInput; - document.addDocumentRewriteSessionListener(fDocumentRewriteSessionListener); - } - - IDocument newDocument= (IDocument) newInput; - if (newDocument != null) { - newDocument.addPositionCategory(MARK_POSITION_CATEGORY); - newDocument.addPositionUpdater(fMarkPositionUpdater); - } - } - - private void initializeWidgetContents() { - - if (fTextWidget != null && fVisibleDocument != null) { - - // set widget content - if (fDocumentAdapter == null) - fDocumentAdapter= createDocumentAdapter(); - - fDocumentAdapter.setDocument(fVisibleDocument); - fTextWidget.setContent(fDocumentAdapter); - System.err.println(fDocumentAdapter); - - // invalidate presentation - invalidateTextPresentation(); - } - } - - protected IDocumentAdapter createDocumentAdapter() { - return new DefaultDocumentAdapter(); - } - - public final void invalidateTextPresentation() { - if (fVisibleDocument != null) { - fWidgetCommand.event= null; - fWidgetCommand.start= 0; - fWidgetCommand.length= fVisibleDocument.getLength(); - fWidgetCommand.text= fVisibleDocument.get(); - updateTextListeners(fWidgetCommand); - } - } - - protected void updateTextListeners(WidgetCommand cmd) { - List textListeners= fTextListeners; - if (textListeners != null) { - textListeners= new ArrayList(textListeners); - DocumentEvent event= cmd.event; - if (event instanceof SlaveDocumentEvent) - event= ((SlaveDocumentEvent) event).getMasterEvent(); - - TextEvent e= new TextEvent(cmd.start, cmd.length, cmd.text, cmd.preservedText, event, redraws()); - for (int i= 0; i < textListeners.size(); i++) { - ITextListener l= (ITextListener) textListeners.get(i); - l.textChanged(e); - } - } - } - - protected final boolean redraws() { - return fRedrawCounter <= 0; - } - - protected void handleVisibleDocumentAboutToBeChanged(DocumentEvent event) { - } - - protected void handleVisibleDocumentChanged(DocumentEvent event) { - } - - public void addTextListener(ITextListener listener) { - - Assert.isNotNull(listener); - - if (fTextListeners == null) - fTextListeners= new ArrayList(); - - if (!fTextListeners.contains(listener)) - fTextListeners.add(listener); - } - - public void removeTextListener(ITextListener listener) { - Assert.isNotNull(listener); - - if (fTextListeners != null) { - fTextListeners.remove(listener); - if (fTextListeners.size() == 0) - fTextListeners= null; - } - } - - public void addTextInputListener(ITextInputListener listener) { - - Assert.isNotNull(listener); - - if (fTextInputListeners == null) - fTextInputListeners= new ArrayList(); - - if (!fTextInputListeners.contains(listener)) - fTextInputListeners.add(listener); - } - - public void removeTextInputListener(ITextInputListener listener) { - - Assert.isNotNull(listener); - - if (fTextInputListeners != null) { - fTextInputListeners.remove(listener); - if (fTextInputListeners.size() == 0) - fTextInputListeners= null; - } - } - - public void changeTextPresentation(TextPresentation presentation, boolean controlRedraw) { - - if (presentation == null || !redraws()) - return; - - if (fTextWidget == null) - return; - - - /* - * Call registered text presentation listeners - * and let them apply their presentation. - */ - if (fTextPresentationListeners != null) { - ArrayList listeners= new ArrayList(fTextPresentationListeners); - for (int i= 0, size= listeners.size(); i < size; i++) { - ITextPresentationListener listener= (ITextPresentationListener)listeners.get(i); - listener.applyTextPresentation(presentation); - } - } - - if (presentation.isEmpty()) - return; - -// if (controlRedraw) -// fTextWidget.setRedraw(false); - - if (fReplaceTextPresentation) - applyTextPresentation(presentation); - else - addPresentation(presentation); - -// if (controlRedraw) -// fTextWidget.setRedraw(true); - } - - private void addPresentation(TextPresentation presentation) { - - StyleRange range= presentation.getDefaultStyleRange(); - if (range != null) { - - range= modelStyleRange2WidgetStyleRange(range); - if (range != null) - fTextWidget.setStyleRange(range); - - ArrayList ranges= new ArrayList(presentation.getDenumerableRanges()); - Iterator e= presentation.getNonDefaultStyleRangeIterator(); - while (e.hasNext()) { - range= (StyleRange) e.next(); - range= modelStyleRange2WidgetStyleRange(range); - if (range != null) - ranges.add(range); - } - - if (!ranges.isEmpty()) - fTextWidget.replaceStyleRanges(0, 0, (StyleRange[])ranges.toArray(new StyleRange[ranges.size()])); - - } else { - IRegion region= modelRange2WidgetRange(presentation.getCoverage()); - if (region == null) - return; - - List list= new ArrayList(presentation.getDenumerableRanges()); - Iterator e= presentation.getAllStyleRangeIterator(); - while (e.hasNext()) { - range= (StyleRange) e.next(); - range= modelStyleRange2WidgetStyleRange(range); - if (range != null) - list.add(range); - } - - if (!list.isEmpty()) { - StyleRange[] ranges= new StyleRange[list.size()]; - list.toArray(ranges); - fTextWidget.replaceStyleRanges(region.getOffset(), region.getLength(), ranges); - } - } - } - - private void applyTextPresentation(TextPresentation presentation) { - List list= new ArrayList(presentation.getDenumerableRanges()); - Iterator e= presentation.getAllStyleRangeIterator(); - while (e.hasNext()) { - StyleRange range= (StyleRange) e.next(); - range= modelStyleRange2WidgetStyleRange(range); - if (range != null) - list.add(range); - } - - if (!list.isEmpty()) { - StyleRange[] ranges= new StyleRange[list.size()]; - list.toArray(ranges); - fTextWidget.setStyleRanges(ranges); - } - } - - protected StyleRange modelStyleRange2WidgetStyleRange(StyleRange range) { - IRegion region= modelRange2WidgetRange(new Region(range.start, range.length)); - if (region != null) { - StyleRange result= (StyleRange) range.clone(); - result.start= region.getOffset(); - result.length= region.getLength(); - return result; - } - return null; - } - - public IRegion modelRange2WidgetRange(IRegion modelRange) { - if (fInformationMapping == null) - return modelRange; - - try { - - if (modelRange.getLength() < 0) { - Region reversed= new Region(modelRange.getOffset() + modelRange.getLength(), -modelRange.getLength()); - IRegion result= fInformationMapping.toImageRegion(reversed); - if (result != null) - return new Region(result.getOffset() + result.getLength(), -result.getLength()); - } - return fInformationMapping.toImageRegion(modelRange); - - } catch (BadLocationException x) { - } - - return null; - } - - public IRewriteTarget getRewriteTarget() { - if (fRewriteTarget == null) - fRewriteTarget= new RewriteTarget(); - return fRewriteTarget; - } - - public final void setRedraw(boolean redraw) { -//TODO needs porting -// setRedraw(redraw, -1); - } - - class VisibleDocumentListener implements IDocumentListener { - - public void documentAboutToBeChanged(DocumentEvent e) { - if (e.getDocument() == getVisibleDocument()) - fWidgetCommand.setEvent(e); - handleVisibleDocumentAboutToBeChanged(e); - } - - public void documentChanged(DocumentEvent e) { - if (fWidgetCommand.event == e) - updateTextListeners(fWidgetCommand); - fLastSentSelectionChange= null; - handleVisibleDocumentChanged(e); - } - } - - /** - * Represents a replace command that brings the text viewer's text widget - * back in synchronization with text viewer's document after the document - * has been changed. - */ - protected class WidgetCommand { - - /** The document event encapsulated by this command. */ - public DocumentEvent event; - /** The start of the event. */ - public int start; - /** The length of the event. */ - public int length; - /** The inserted and replaced text segments of <code>event</code>. */ - public String text; - /** The replaced text segments of <code>event</code>. */ - public String preservedText; - - /** - * Translates a document event into the presentation coordinates of this text viewer. - * - * @param e the event to be translated - */ - public void setEvent(DocumentEvent e) { - - event= e; - - start= e.getOffset(); - length= e.getLength(); - text= e.getText(); - - if (length != 0) { - try { - - if (e instanceof SlaveDocumentEvent) { - SlaveDocumentEvent slave= (SlaveDocumentEvent) e; - DocumentEvent master= slave.getMasterEvent(); - if (master != null) - preservedText= master.getDocument().get(master.getOffset(), master.getLength()); - } else { - preservedText= e.getDocument().get(e.getOffset(), e.getLength()); - } - - } catch (BadLocationException x) { - preservedText= null; -// if (TRACE_ERRORS) -// System.out.println(JFaceTextMessages.getString("TextViewer.error.bad_location.WidgetCommand.setEvent")); //$NON-NLS-1$ - } - } else - preservedText= null; - } - } - - private class DocumentRewriteSessionListener implements IDocumentRewriteSessionListener { - - /* - * @see org.eclipse.jface.text.IDocumentRewriteSessionListener#documentRewriteSessionChanged(org.eclipse.jface.text.DocumentRewriteSessionEvent) - */ - public void documentRewriteSessionChanged(DocumentRewriteSessionEvent event) { - IRewriteTarget target= TextViewer.this.getRewriteTarget(); - final boolean toggleRedraw; -// if (REDRAW_BUG_158746) -// toggleRedraw= true; -// else - toggleRedraw= event.getSession().getSessionType() != DocumentRewriteSessionType.UNRESTRICTED_SMALL; - final boolean viewportStabilize= !toggleRedraw; - if (DocumentRewriteSessionEvent.SESSION_START == event.getChangeType()) { - if (toggleRedraw) - target.setRedraw(false); - target.beginCompoundChange(); - if (viewportStabilize && fViewerState == null) - fViewerState= new ViewerState(); - } else if (DocumentRewriteSessionEvent.SESSION_STOP == event.getChangeType()) { - if (viewportStabilize && fViewerState != null) { - fViewerState.restore(true); - fViewerState= null; - } - target.endCompoundChange(); - if (toggleRedraw) - target.setRedraw(true); - } - } - } - - public boolean overlapsWithVisibleRegion(int start, int length) { - IDocument document= getVisibleDocument(); - if (document instanceof ChildDocument) { - ChildDocument cdoc= (ChildDocument) document; - return cdoc.getParentDocumentRange().overlapsWith(start, length); - } else if (document != null) { - int size= document.getLength(); - return (start >= 0 && length >= 0 && start + length <= size); - } - return false; - } - - public final void invalidateTextPresentation(int offset, int length) { - if (fVisibleDocument != null) { - - IRegion widgetRange= modelRange2WidgetRange(new Region(offset, length)); - if (widgetRange != null) { - - fWidgetCommand.event= null; - fWidgetCommand.start= widgetRange.getOffset(); - fWidgetCommand.length= widgetRange.getLength(); - - try { - fWidgetCommand.text= fVisibleDocument.get(widgetRange.getOffset(), widgetRange.getLength()); - updateTextListeners(fWidgetCommand); - } catch (BadLocationException x) { - // can not happen because of previous checking - } - } - } - } - - public void addTextPresentationListener(ITextPresentationListener listener) { - - Assert.isNotNull(listener); - - if (fTextPresentationListeners == null) - fTextPresentationListeners= new ArrayList(); - - if (!fTextPresentationListeners.contains(listener)) - fTextPresentationListeners.add(listener); - } - - public void removeTextPresentationListener(ITextPresentationListener listener) { - - Assert.isNotNull(listener); - - if (fTextPresentationListeners != null) { - fTextPresentationListeners.remove(listener); - if (fTextPresentationListeners.size() == 0) - fTextPresentationListeners= null; - } - } - - /** - * The viewer's rewrite target. - * @since 2.0 - */ - class RewriteTarget implements IRewriteTarget { - - /* - * @see org.eclipse.jface.text.IRewriteTarget#beginCompoundChange() - */ - public void beginCompoundChange() { -//TODO needs porting -// if (fUndoManager != null) -// fUndoManager.beginCompoundChange(); - } - - /* - * @see org.eclipse.jface.text.IRewriteTarget#endCompoundChange() - */ - public void endCompoundChange() { -//TODO needs porting -// if (fUndoManager != null) -// fUndoManager.endCompoundChange(); - } - - /* - * @see org.eclipse.jface.text.IRewriteTarget#getDocument() - */ - public IDocument getDocument() { - return TextViewer.this.getDocument(); - } - - /* - * @see org.eclipse.jface.text.IRewriteTarget#setRedraw(boolean) - */ - public void setRedraw(boolean redraw) { - TextViewer.this.setRedraw(redraw); - } - } - - private final class ViewerState { -//TODO needs porting - public void restore(boolean restoreViewport) { - - } - } -} |