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view dwtx/jface/text/PaintManager.d @ 143:53b889547456
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author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 24 Aug 2008 21:32:37 +0200 |
parents | 65801ad2b265 |
children | f70d9508c95c |
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/******************************************************************************* * Copyright (c) 2000, 2005 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 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.jface.text.PaintManager; import dwtx.jface.text.IDocumentPartitioningListener; // packageimport import dwtx.jface.text.DefaultTextHover; // packageimport import dwtx.jface.text.AbstractInformationControl; // packageimport import dwtx.jface.text.TextUtilities; // packageimport import dwtx.jface.text.IInformationControlCreatorExtension; // packageimport import dwtx.jface.text.AbstractInformationControlManager; // packageimport import dwtx.jface.text.ITextViewerExtension2; // packageimport import dwtx.jface.text.IDocumentPartitioner; // packageimport import dwtx.jface.text.DefaultIndentLineAutoEditStrategy; // packageimport import dwtx.jface.text.ITextSelection; // packageimport import dwtx.jface.text.Document; // packageimport import dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider; // packageimport import dwtx.jface.text.ITextListener; // packageimport import dwtx.jface.text.BadPartitioningException; // packageimport import dwtx.jface.text.ITextViewerExtension5; // packageimport import dwtx.jface.text.IDocumentPartitionerExtension3; // packageimport import dwtx.jface.text.IUndoManager; // packageimport import dwtx.jface.text.ITextHoverExtension2; // packageimport import dwtx.jface.text.IRepairableDocument; // packageimport import dwtx.jface.text.IRewriteTarget; // packageimport import dwtx.jface.text.DefaultPositionUpdater; // packageimport import dwtx.jface.text.RewriteSessionEditProcessor; // packageimport import dwtx.jface.text.TextViewerHoverManager; // packageimport import dwtx.jface.text.DocumentRewriteSession; // packageimport import dwtx.jface.text.TextViewer; // packageimport import dwtx.jface.text.ITextViewerExtension8; // packageimport import dwtx.jface.text.RegExMessages; // packageimport import dwtx.jface.text.IDelayedInputChangeProvider; // packageimport import dwtx.jface.text.ITextOperationTargetExtension; // packageimport import dwtx.jface.text.IWidgetTokenOwner; // packageimport import dwtx.jface.text.IViewportListener; // packageimport import dwtx.jface.text.GapTextStore; // packageimport import dwtx.jface.text.MarkSelection; // packageimport import dwtx.jface.text.IDocumentPartitioningListenerExtension; // packageimport import dwtx.jface.text.IDocumentAdapterExtension; // packageimport import dwtx.jface.text.IInformationControlExtension; // packageimport import dwtx.jface.text.IDocumentPartitioningListenerExtension2; // packageimport import dwtx.jface.text.DefaultDocumentAdapter; // packageimport import dwtx.jface.text.ITextViewerExtension3; // packageimport import dwtx.jface.text.IInformationControlCreator; // packageimport import dwtx.jface.text.TypedRegion; // packageimport import dwtx.jface.text.ISynchronizable; // packageimport import dwtx.jface.text.IMarkRegionTarget; // packageimport import dwtx.jface.text.TextViewerUndoManager; // packageimport import dwtx.jface.text.IRegion; // packageimport import dwtx.jface.text.IInformationControlExtension2; // packageimport import dwtx.jface.text.IDocumentExtension4; // packageimport import dwtx.jface.text.IDocumentExtension2; // packageimport import dwtx.jface.text.IDocumentPartitionerExtension2; // packageimport import dwtx.jface.text.Assert; // packageimport import dwtx.jface.text.DefaultInformationControl; // packageimport import dwtx.jface.text.IWidgetTokenOwnerExtension; // packageimport import dwtx.jface.text.DocumentClone; // packageimport import dwtx.jface.text.DefaultUndoManager; // packageimport import dwtx.jface.text.IFindReplaceTarget; // packageimport import dwtx.jface.text.IAutoEditStrategy; // packageimport import dwtx.jface.text.ILineTrackerExtension; // packageimport import dwtx.jface.text.IUndoManagerExtension; // packageimport import dwtx.jface.text.TextSelection; // packageimport import dwtx.jface.text.DefaultAutoIndentStrategy; // packageimport import dwtx.jface.text.IAutoIndentStrategy; // packageimport import dwtx.jface.text.IPainter; // packageimport import dwtx.jface.text.IInformationControl; // packageimport import dwtx.jface.text.IInformationControlExtension3; // packageimport import dwtx.jface.text.ITextViewerExtension6; // packageimport import dwtx.jface.text.IInformationControlExtension4; // packageimport import dwtx.jface.text.DefaultLineTracker; // packageimport import dwtx.jface.text.IDocumentInformationMappingExtension; // packageimport import dwtx.jface.text.IRepairableDocumentExtension; // packageimport import dwtx.jface.text.ITextHover; // packageimport import dwtx.jface.text.FindReplaceDocumentAdapter; // packageimport import dwtx.jface.text.ILineTracker; // packageimport import dwtx.jface.text.Line; // packageimport import dwtx.jface.text.ITextViewerExtension; // packageimport import dwtx.jface.text.IDocumentAdapter; // packageimport import dwtx.jface.text.TextEvent; // packageimport import dwtx.jface.text.BadLocationException; // packageimport import dwtx.jface.text.AbstractDocument; // packageimport import dwtx.jface.text.AbstractLineTracker; // packageimport import dwtx.jface.text.TreeLineTracker; // packageimport import dwtx.jface.text.ITextPresentationListener; // packageimport import dwtx.jface.text.Region; // packageimport import dwtx.jface.text.ITextViewer; // packageimport import dwtx.jface.text.IDocumentInformationMapping; // packageimport import dwtx.jface.text.MarginPainter; // packageimport import dwtx.jface.text.IPaintPositionManager; // packageimport import dwtx.jface.text.TextPresentation; // packageimport import dwtx.jface.text.IFindReplaceTargetExtension; // packageimport import dwtx.jface.text.ISlaveDocumentManagerExtension; // packageimport import dwtx.jface.text.ISelectionValidator; // packageimport import dwtx.jface.text.IDocumentExtension; // packageimport import dwtx.jface.text.PropagatingFontFieldEditor; // packageimport import dwtx.jface.text.ConfigurableLineTracker; // packageimport import dwtx.jface.text.SlaveDocumentEvent; // packageimport import dwtx.jface.text.IDocumentListener; // packageimport import dwtx.jface.text.IFindReplaceTargetExtension3; // packageimport import dwtx.jface.text.ITextDoubleClickStrategy; // packageimport import dwtx.jface.text.IDocumentExtension3; // packageimport import dwtx.jface.text.Position; // packageimport import dwtx.jface.text.TextMessages; // packageimport import dwtx.jface.text.CopyOnWriteTextStore; // packageimport import dwtx.jface.text.WhitespaceCharacterPainter; // packageimport import dwtx.jface.text.IPositionUpdater; // packageimport import dwtx.jface.text.DefaultTextDoubleClickStrategy; // packageimport import dwtx.jface.text.ListLineTracker; // packageimport import dwtx.jface.text.ITextInputListener; // packageimport import dwtx.jface.text.BadPositionCategoryException; // packageimport import dwtx.jface.text.IWidgetTokenKeeperExtension; // packageimport import dwtx.jface.text.IInputChangedListener; // packageimport import dwtx.jface.text.ITextOperationTarget; // packageimport import dwtx.jface.text.IDocumentInformationMappingExtension2; // packageimport import dwtx.jface.text.ITextViewerExtension7; // packageimport import dwtx.jface.text.IInformationControlExtension5; // packageimport import dwtx.jface.text.IDocumentRewriteSessionListener; // packageimport import dwtx.jface.text.JFaceTextUtil; // packageimport import dwtx.jface.text.AbstractReusableInformationControlCreator; // packageimport import dwtx.jface.text.TabsToSpacesConverter; // packageimport import dwtx.jface.text.CursorLinePainter; // packageimport import dwtx.jface.text.ITextHoverExtension; // packageimport import dwtx.jface.text.IEventConsumer; // packageimport import dwtx.jface.text.IDocument; // packageimport import dwtx.jface.text.IWidgetTokenKeeper; // packageimport import dwtx.jface.text.DocumentCommand; // packageimport import dwtx.jface.text.TypedPosition; // packageimport import dwtx.jface.text.IEditingSupportRegistry; // packageimport import dwtx.jface.text.IDocumentPartitionerExtension; // packageimport import dwtx.jface.text.AbstractHoverInformationControlManager; // packageimport import dwtx.jface.text.IEditingSupport; // packageimport import dwtx.jface.text.IMarkSelection; // packageimport import dwtx.jface.text.ISlaveDocumentManager; // packageimport import dwtx.jface.text.DocumentEvent; // packageimport import dwtx.jface.text.DocumentPartitioningChangedEvent; // packageimport import dwtx.jface.text.ITextStore; // packageimport import dwtx.jface.text.JFaceTextMessages; // packageimport import dwtx.jface.text.DocumentRewriteSessionEvent; // packageimport import dwtx.jface.text.SequentialRewriteTextStore; // packageimport import dwtx.jface.text.DocumentRewriteSessionType; // packageimport import dwtx.jface.text.TextAttribute; // packageimport import dwtx.jface.text.ITextViewerExtension4; // packageimport import dwtx.jface.text.ITypedRegion; // packageimport import dwt.dwthelper.utils; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import dwt.custom.StyledText; import dwt.events.KeyEvent; import dwt.events.KeyListener; import dwt.events.MouseEvent; import dwt.events.MouseListener; import dwt.widgets.Control; import dwtx.jface.viewers.ISelectionChangedListener; import dwtx.jface.viewers.ISelectionProvider; import dwtx.jface.viewers.SelectionChangedEvent; /** * Manages the {@link dwtx.jface.text.IPainter} object registered with an * {@link dwtx.jface.text.ITextViewer}. * <p> * Clients usually instantiate and configure objects of this type.</p> * * @since 2.1 */ public final class PaintManager : KeyListener, MouseListener, ISelectionChangedListener, ITextListener, ITextInputListener { /** * Position updater used by the position manager. This position updater differs from the default position * updater in that it extends a position when an insertion happens at the position's offset and right behind * the position. */ static class PaintPositionUpdater : DefaultPositionUpdater { /** * Creates the position updater for the given category. * * @param category the position category */ protected this(String category) { super(category); } /** * If an insertion happens at a position's offset, the * position is extended rather than shifted. Also, if something is added * right behind the end of the position, the position is extended rather * than kept stable. */ protected void adaptToInsert() { int myStart= fPosition.offset; int myEnd= fPosition.offset + fPosition.length; myEnd= Math.max(myStart, myEnd); int yoursStart= fOffset; int yoursEnd= fOffset + fReplaceLength;// - 1; yoursEnd= Math.max(yoursStart, yoursEnd); if (myEnd < yoursStart) return; if (myStart <= yoursStart) fPosition.length += fReplaceLength; else fPosition.offset += fReplaceLength; } } /** * The paint position manager used by this paint manager. The paint position * manager is installed on a single document and control the creation/disposed * and updating of a position category that will be used for managing positions. */ static class PositionManager : IPaintPositionManager { // /** The document this position manager works on */ private IDocument fDocument; /** The position updater used for the managing position category */ private IPositionUpdater fPositionUpdater; /** The managing position category */ private String fCategory; /** * Creates a new position manager. Initializes the managing * position category using its class name and its hash value. */ public this() { fCategory= getClass().getName() + hashCode(); fPositionUpdater= new PaintPositionUpdater(fCategory); } /** * Installs this position manager in the given document. The position manager stays * active until <code>uninstall</code> or <code>dispose</code> * is called. * * @param document the document to be installed on */ public void install(IDocument document) { fDocument= document; fDocument.addPositionCategory(fCategory); fDocument.addPositionUpdater(fPositionUpdater); } /** * Disposes this position manager. The position manager is automatically * removed from the document it has previously been installed * on. */ public void dispose() { uninstall(fDocument); } /** * Uninstalls this position manager form the given document. If the position * manager has no been installed on this document, this method is without effect. * * @param document the document form which to uninstall */ public void uninstall(IDocument document) { if (document is fDocument && document !is null) { try { fDocument.removePositionUpdater(fPositionUpdater); fDocument.removePositionCategory(fCategory); } catch (BadPositionCategoryException x) { // should not happen } fDocument= null; } } /* * @see IPositionManager#addManagedPosition(Position) */ public void managePosition(Position position) { try { fDocument.addPosition(fCategory, position); } catch (BadPositionCategoryException x) { // should not happen } catch (BadLocationException x) { // should not happen } } /* * @see IPositionManager#removeManagedPosition(Position) */ public void unmanagePosition(Position position) { try { fDocument.removePosition(fCategory, position); } catch (BadPositionCategoryException x) { // should not happen } } } /** The painters managed by this paint manager. */ private List fPainters= new ArrayList(2); /** The position manager used by this paint manager */ private PositionManager fManager; /** The associated text viewer */ private ITextViewer fTextViewer; /** * Creates a new paint manager for the given text viewer. * * @param textViewer the text viewer associated to this newly created paint manager */ public this(ITextViewer textViewer) { fTextViewer= textViewer; } /** * Adds the given painter to the list of painters managed by this paint manager. * If the painter is already registered with this paint manager, this method is * without effect. * * @param painter the painter to be added */ public void addPainter(IPainter painter) { if (!fPainters.contains(painter)) { fPainters.add(painter); if (fPainters.size() is 1) install(); painter.setPositionManager(fManager); painter.paint(IPainter.INTERNAL); } } /** * Removes the given painter from the list of painters managed by this * paint manager. If the painter has not previously been added to this * paint manager, this method is without effect. * * @param painter the painter to be removed */ public void removePainter(IPainter painter) { if (fPainters.remove(painter)) { painter.deactivate(true); painter.setPositionManager(null); } if (fPainters.size() is 0) dispose(); } /** * Installs/activates this paint manager. Is called as soon as the * first painter is to be managed by this paint manager. */ private void install() { fManager= new PositionManager(); if (fTextViewer.getDocument() !is null) fManager.install(fTextViewer.getDocument()); fTextViewer.addTextInputListener(this); addListeners(); } /** * Installs our listener set on the text viewer and the text widget, * respectively. */ private void addListeners() { ISelectionProvider provider= fTextViewer.getSelectionProvider(); provider.addSelectionChangedListener(this); fTextViewer.addTextListener(this); StyledText text= fTextViewer.getTextWidget(); text.addKeyListener(this); text.addMouseListener(this); } /** * Disposes this paint manager. The paint manager uninstalls itself * and clears all registered painters. This method is also called when the * last painter is removed from the list of managed painters. */ public void dispose() { if (fManager !is null) { fManager.dispose(); fManager= null; } for (Iterator e = fPainters.iterator(); e.hasNext();) (cast(IPainter) e.next()).dispose(); fPainters.clear(); fTextViewer.removeTextInputListener(this); removeListeners(); } /** * Removes our set of listeners from the text viewer and widget, * respectively. */ private void removeListeners() { ISelectionProvider provider= fTextViewer.getSelectionProvider(); if (provider !is null) provider.removeSelectionChangedListener(this); fTextViewer.removeTextListener(this); StyledText text= fTextViewer.getTextWidget(); if (text !is null && !text.isDisposed()) { text.removeKeyListener(this); text.removeMouseListener(this); } } /** * Triggers all registered painters for the given reason. * * @param reason the reason * @see IPainter */ private void paint(int reason) { for (Iterator e = fPainters.iterator(); e.hasNext();) (cast(IPainter) e.next()).paint(reason); } /* * @see KeyListener#keyPressed(KeyEvent) */ public void keyPressed(KeyEvent e) { paint(IPainter.KEY_STROKE); } /* * @see KeyListener#keyReleased(KeyEvent) */ public void keyReleased(KeyEvent e) { } /* * @see MouseListener#mouseDoubleClick(MouseEvent) */ public void mouseDoubleClick(MouseEvent e) { } /* * @see MouseListener#mouseDown(MouseEvent) */ public void mouseDown(MouseEvent e) { paint(IPainter.MOUSE_BUTTON); } /* * @see MouseListener#mouseUp(MouseEvent) */ public void mouseUp(MouseEvent e) { } /* * @see ISelectionChangedListener#selectionChanged(SelectionChangedEvent) */ public void selectionChanged(SelectionChangedEvent event) { paint(IPainter.SELECTION); } /* * @see ITextListener#textChanged(TextEvent) */ public void textChanged(TextEvent event) { if (!event.getViewerRedrawState()) return; Control control= fTextViewer.getTextWidget(); if (control !is null) { control.getDisplay().asyncExec(new class() Runnable { public void run() { if (fTextViewer !is null) paint(IPainter.TEXT_CHANGE); } }); } } /* * @see ITextInputListener#inputDocumentAboutToBeChanged(IDocument, IDocument) */ public void inputDocumentAboutToBeChanged(IDocument oldInput, IDocument newInput) { if (oldInput !is null) { for (Iterator e = fPainters.iterator(); e.hasNext();) (cast(IPainter) e.next()).deactivate(false); fManager.uninstall(oldInput); removeListeners(); } } /* * @see ITextInputListener#inputDocumentChanged(IDocument, IDocument) */ public void inputDocumentChanged(IDocument oldInput, IDocument newInput) { if (newInput !is null) { fManager.install(newInput); paint(IPainter.TEXT_CHANGE); addListeners(); } } }