+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2006 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
- *******************************************************************************/
-package net.sourceforge.phpdt.internal.ui.text.java.hover;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-import org.eclipse.jface.text.AbstractInformationControlManager;
-import org.eclipse.jface.text.DefaultInformationControl;
-import org.eclipse.jface.text.IInformationControl;
-import org.eclipse.jface.text.IInformationControlCreator;
-import org.eclipse.jface.text.IInformationControlExtension;
-import org.eclipse.jface.text.IInformationControlExtension2;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.IViewportListener;
-import org.eclipse.jface.text.Position;
-import org.eclipse.jface.text.Region;
-import org.eclipse.jface.text.TextViewer;
-import org.eclipse.jface.text.source.Annotation;
-import org.eclipse.jface.text.source.IAnnotationAccess;
-import org.eclipse.jface.text.source.IAnnotationAccessExtension;
-import org.eclipse.jface.text.source.IAnnotationModel;
-import org.eclipse.jface.text.source.ISourceViewer;
-import org.eclipse.jface.text.source.IVerticalRulerInfo;
-import org.eclipse.jface.text.source.IVerticalRulerListener;
-import org.eclipse.jface.text.source.VerticalRulerEvent;
-import org.eclipse.jface.viewers.IDoubleClickListener;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.custom.StyleRange;
-import org.eclipse.swt.custom.StyledText;
-import org.eclipse.swt.events.DisposeEvent;
-import org.eclipse.swt.events.DisposeListener;
-import org.eclipse.swt.events.FocusListener;
-import org.eclipse.swt.events.MenuEvent;
-import org.eclipse.swt.events.MenuListener;
-import org.eclipse.swt.events.MouseAdapter;
-import org.eclipse.swt.events.MouseEvent;
-import org.eclipse.swt.events.MouseTrackAdapter;
-import org.eclipse.swt.events.MouseTrackListener;
-import org.eclipse.swt.events.PaintEvent;
-import org.eclipse.swt.events.PaintListener;
-import org.eclipse.swt.graphics.Color;
-import org.eclipse.swt.graphics.Cursor;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Canvas;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Event;
-import org.eclipse.swt.widgets.Layout;
-import org.eclipse.swt.widgets.Listener;
-import org.eclipse.swt.widgets.Menu;
-import org.eclipse.swt.widgets.Shell;
-import org.eclipse.swt.widgets.Widget;
-
-/**
- * A control that can display a number of annotations. The control can decide
- * how it layouts the annotations to present them to the user.
- * <p>
- * This class got moved here form Platform Text since it was not used there and
- * caused discouraged access warnings. It will be moved down again once
- * annotation roll-over support is provided by Platform Text.
- * </p>
- * <p>
- * Each annotation can have its custom context menu and hover.
- * </p>
- *
- * @since 3.2
- */
-public class AnnotationExpansionControl implements IInformationControl,
- IInformationControlExtension, IInformationControlExtension2 {
-
- public interface ICallback {
- void run(IInformationControlExtension2 control);
- }
-
- /**
- * Input used by the control to display the annotations. TODO move to
- * top-level class TODO encapsulate fields
- *
- * @since 3.0
- */
- public static class AnnotationHoverInput {
- public Annotation[] fAnnotations;
-
- public ISourceViewer fViewer;
-
- public IVerticalRulerInfo fRulerInfo;
-
- public IVerticalRulerListener fAnnotationListener;
-
- public IDoubleClickListener fDoubleClickListener;
-
- public ICallback redoAction;
-
- public IAnnotationModel model;
- }
-
- private final class Item {
- Annotation fAnnotation;
-
- Canvas canvas;
-
- StyleRange[] oldStyles;
-
- public void selected() {
- Display disp = fShell.getDisplay();
- canvas.setCursor(fHandCursor);
- // TODO: shade - for now: set grey background
- canvas.setBackground(getSelectionColor(disp));
-
- // highlight the viewer background at its position
- oldStyles = setViewerBackground(fAnnotation);
-
- // set the selection
- fSelection = this;
-
- if (fHoverManager != null)
- fHoverManager.showInformation();
-
- if (fInput.fAnnotationListener != null) {
- VerticalRulerEvent event = new VerticalRulerEvent(fAnnotation);
- fInput.fAnnotationListener.annotationSelected(event);
- }
-
- }
-
- public void defaultSelected() {
- if (fInput.fAnnotationListener != null) {
- VerticalRulerEvent event = new VerticalRulerEvent(fAnnotation);
- fInput.fAnnotationListener.annotationDefaultSelected(event);
- }
-
- dispose();
- }
-
- public void showContextMenu(Menu menu) {
- if (fInput.fAnnotationListener != null) {
- VerticalRulerEvent event = new VerticalRulerEvent(fAnnotation);
- fInput.fAnnotationListener.annotationContextMenuAboutToShow(
- event, menu);
- }
- }
-
- public void deselect() {
- // hide the popup
- // fHoverManager.disposeInformationControl();
-
- // deselect
- fSelection = null;
-
- resetViewerBackground(oldStyles);
- oldStyles = null;
-
- Display disp = fShell.getDisplay();
- canvas.setCursor(null);
- // TODO: remove shading - for now: set standard background
- canvas
- .setBackground(disp
- .getSystemColor(SWT.COLOR_INFO_BACKGROUND));
-
- }
-
- }
-
- /**
- * Disposes of an item
- */
- private final static class MyDisposeListener implements DisposeListener {
- /*
- * @see org.eclipse.swt.events.DisposeListener#widgetDisposed(org.eclipse.swt.events.DisposeEvent)
- */
- public void widgetDisposed(DisposeEvent e) {
- Item item = (Item) ((Widget) e.getSource()).getData();
- item.deselect();
- item.canvas = null;
- item.fAnnotation = null;
- item.oldStyles = null;
-
- ((Widget) e.getSource()).setData(null);
- }
- }
-
- /**
- * Listener on context menu invocation on the items
- */
- private final class MyMenuDetectListener implements Listener {
- /*
- * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
- */
- public void handleEvent(Event event) {
- if (event.type == SWT.MenuDetect) {
- // TODO: show per-item menu
- // for now: show ruler context menu
- if (fInput != null) {
- Control ruler = fInput.fRulerInfo.getControl();
- if (ruler != null && !ruler.isDisposed()) {
- Menu menu = ruler.getMenu();
- if (menu != null && !menu.isDisposed()) {
- menu.setLocation(event.x, event.y);
- menu.addMenuListener(new MenuListener() {
-
- public void menuHidden(MenuEvent e) {
- dispose();
- }
-
- public void menuShown(MenuEvent e) {
- }
-
- });
- menu.setVisible(true);
- }
- }
- }
- }
- }
- }
-
- /**
- * Listener on mouse events on the items.
- */
- private final class MyMouseListener extends MouseAdapter {
- /*
- * @see org.eclipse.swt.events.MouseListener#mouseDoubleClick(org.eclipse.swt.events.MouseEvent)
- */
- public void mouseDoubleClick(MouseEvent e) {
- Item item = (Item) ((Widget) e.getSource()).getData();
- if (e.button == 1 && item.fAnnotation == fInput.fAnnotations[0]
- && fInput.fDoubleClickListener != null) {
- fInput.fDoubleClickListener.doubleClick(null);
- // special code for JDT to renew the annotation set.
- if (fInput.redoAction != null)
- fInput.redoAction.run(AnnotationExpansionControl.this);
- }
- // dispose();
- // TODO special action to invoke double-click action on the vertical
- // ruler
- // how about
- // Canvas can= (Canvas) e.getSource();
- // Annotation a= (Annotation) can.getData();
- // if (a != null) {
- // a.getDoubleClickAction().run();
- // }
- }
-
- /*
- * @see org.eclipse.swt.events.MouseListener#mouseUp(org.eclipse.swt.events.MouseEvent)
- */
- public void mouseUp(MouseEvent e) {
- Item item = (Item) ((Widget) e.getSource()).getData();
- // TODO for now, to make double click work: disable single click on
- // the first item
- // disable later when the annotationlistener selectively handles
- // input
- if (item != null && e.button == 1) // && item.fAnnotation !=
- // fInput.fAnnotations[0])
- item.defaultSelected();
- }
-
- /*
- * @see org.eclipse.swt.events.MouseAdapter#mouseDown(org.eclipse.swt.events.MouseEvent)
- */
- public void mouseDown(MouseEvent e) {
- super.mouseDown(e);
- }
- }
-
- /**
- * Listener on mouse track events on the items.
- */
- private final class MyMouseTrackListener implements MouseTrackListener {
- /*
- * @see org.eclipse.swt.events.MouseTrackListener#mouseEnter(org.eclipse.swt.events.MouseEvent)
- */
- public void mouseEnter(MouseEvent e) {
- Item item = (Item) ((Widget) e.getSource()).getData();
- if (item != null)
- item.selected();
- }
-
- /*
- * @see org.eclipse.swt.events.MouseTrackListener#mouseExit(org.eclipse.swt.events.MouseEvent)
- */
- public void mouseExit(MouseEvent e) {
-
- Item item = (Item) ((Widget) e.getSource()).getData();
- if (item != null)
- item.deselect();
-
- // if the event lies outside the entire popup, dispose
- org.eclipse.swt.graphics.Region region = fShell.getRegion();
- Canvas can = (Canvas) e.getSource();
- Point p = can.toDisplay(e.x, e.y);
- if (region == null) {
- Rectangle bounds = fShell.getBounds();
- // p= fShell.toControl(p);
- if (!bounds.contains(p))
- dispose();
- } else {
- p = fShell.toControl(p);
- if (!region.contains(p))
- dispose();
- }
-
- }
-
- /*
- * @see org.eclipse.swt.events.MouseTrackListener#mouseHover(org.eclipse.swt.events.MouseEvent)
- */
- public void mouseHover(MouseEvent e) {
- if (fHoverManager == null) {
- fHoverManager = new HoverManager();
- fHoverManager.takesFocusWhenVisible(false);
- fHoverManager.install(fComposite);
- fHoverManager.showInformation();
- }
- }
- }
-
- /**
- *
- *
- * @since 3.0
- */
- public class LinearLayouter {
-
- private static final int ANNOTATION_SIZE = 14;
-
- private static final int BORDER_WIDTH = 2;
-
- public Layout getLayout(int itemCount) {
- // simple layout: a row of items
- GridLayout layout = new GridLayout(itemCount, true);
- layout.horizontalSpacing = 1;
- layout.verticalSpacing = 0;
- layout.marginHeight = 1;
- layout.marginWidth = 1;
- return layout;
- }
-
- public Object getLayoutData() {
- GridData gridData = new GridData(
- ANNOTATION_SIZE + 2 * BORDER_WIDTH, ANNOTATION_SIZE + 2
- * BORDER_WIDTH);
- gridData.horizontalAlignment = GridData.CENTER;
- gridData.verticalAlignment = GridData.CENTER;
- return gridData;
- }
-
- public int getAnnotationSize() {
- return ANNOTATION_SIZE;
- }
-
- public int getBorderWidth() {
- return BORDER_WIDTH;
- }
-
- public org.eclipse.swt.graphics.Region getShellRegion(int itemCount) {
- // no special region - set to null for default shell size
- return null;
- }
-
- }
-
- /**
- * Listener on paint events on the items. Paints the annotation image on the
- * given <code>GC</code>.
- */
- private final class MyPaintListener implements PaintListener {
- /*
- * @see org.eclipse.swt.events.PaintListener#paintControl(org.eclipse.swt.events.PaintEvent)
- */
- public void paintControl(PaintEvent e) {
- Canvas can = (Canvas) e.getSource();
- Annotation a = ((Item) can.getData()).fAnnotation;
- if (a != null) {
- Rectangle rect = new Rectangle(fLayouter.getBorderWidth(),
- fLayouter.getBorderWidth(), fLayouter
- .getAnnotationSize(), fLayouter
- .getAnnotationSize());
- if (fAnnotationAccessExtension != null)
- fAnnotationAccessExtension.paint(a, e.gc, can, rect);
- }
- }
- }
-
- /**
- * Our own private hover manager used to shop per-item pop-ups.
- */
- private final class HoverManager extends AbstractInformationControlManager {
-
- /**
- *
- */
- public HoverManager() {
- super(new IInformationControlCreator() {
- public IInformationControl createInformationControl(Shell parent) {
- return new DefaultInformationControl(parent);
- }
- });
-
- setMargins(5, 10);
- setAnchor(ANCHOR_BOTTOM);
- setFallbackAnchors(new Anchor[] { ANCHOR_BOTTOM, ANCHOR_LEFT,
- ANCHOR_RIGHT });
- }
-
- /*
- * @see org.eclipse.jface.text.AbstractInformationControlManager#computeInformation()
- */
- protected void computeInformation() {
- if (fSelection != null) {
- Rectangle subjectArea = fSelection.canvas.getBounds();
- Annotation annotation = fSelection.fAnnotation;
- String msg;
- if (annotation != null)
- msg = annotation.getText();
- else
- msg = null;
-
- setInformation(msg, subjectArea);
- }
- }
-
- }
-
- /** Model data. */
- protected AnnotationHoverInput fInput;
-
- /** The control's shell */
- private Shell fShell;
-
- /** The composite combining all the items. */
- protected Composite fComposite;
-
- /** The hand cursor. */
- private Cursor fHandCursor;
-
- /** The currently selected item, or <code>null</code> if none is selected. */
- private Item fSelection;
-
- /** The hover manager for the per-item hovers. */
- private HoverManager fHoverManager;
-
- /** The annotation access extension. */
- private IAnnotationAccessExtension fAnnotationAccessExtension;
-
- /* listener legion */
- private final MyPaintListener fPaintListener;
-
- private final MyMouseTrackListener fMouseTrackListener;
-
- private final MyMouseListener fMouseListener;
-
- private final MyMenuDetectListener fMenuDetectListener;
-
- private final DisposeListener fDisposeListener;
-
- private final IViewportListener fViewportListener;
-
- private LinearLayouter fLayouter;
-
- /**
- * Creates a new control.
- *
- * @param parent
- * @param shellStyle
- * @param access
- */
- public AnnotationExpansionControl(Shell parent, int shellStyle,
- IAnnotationAccess access) {
- fPaintListener = new MyPaintListener();
- fMouseTrackListener = new MyMouseTrackListener();
- fMouseListener = new MyMouseListener();
- fMenuDetectListener = new MyMenuDetectListener();
- fDisposeListener = new MyDisposeListener();
- fViewportListener = new IViewportListener() {
-
- public void viewportChanged(int verticalOffset) {
- dispose();
- }
-
- };
- fLayouter = new LinearLayouter();
-
- if (access instanceof IAnnotationAccessExtension)
- fAnnotationAccessExtension = (IAnnotationAccessExtension) access;
-
- fShell = new Shell(parent, shellStyle | SWT.NO_FOCUS | SWT.ON_TOP);
- Display display = fShell.getDisplay();
- fShell.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
- fComposite = new Composite(fShell, SWT.NO_FOCUS | SWT.NO_REDRAW_RESIZE
- | SWT.NO_TRIM);
- // fComposite= new Composite(fShell, SWT.NO_FOCUS | SWT.NO_REDRAW_RESIZE
- // | SWT.NO_TRIM | SWT.V_SCROLL);
-
- GridLayout layout = new GridLayout(1, true);
- layout.marginHeight = 0;
- layout.marginWidth = 0;
- fShell.setLayout(layout);
-
- GridData data = new GridData(GridData.FILL_BOTH);
- data.heightHint = fLayouter.getAnnotationSize() + 2
- * fLayouter.getBorderWidth() + 4;
- fComposite.setLayoutData(data);
- fComposite.addMouseTrackListener(new MouseTrackAdapter() {
-
- public void mouseExit(MouseEvent e) {
- if (fComposite == null)
- return;
- Control[] children = fComposite.getChildren();
- Rectangle bounds = null;
- for (int i = 0; i < children.length; i++) {
- if (bounds == null)
- bounds = children[i].getBounds();
- else
- bounds.add(children[i].getBounds());
- if (bounds.contains(e.x, e.y))
- return;
- }
-
- // if none of the children contains the event, we leave the
- // popup
- dispose();
- }
-
- });
-
- // fComposite.getVerticalBar().addListener(SWT.Selection, new Listener()
- // {
- //
- // public void handleEvent(Event event) {
- // Rectangle bounds= fShell.getBounds();
- // int x= bounds.x - fLayouter.getAnnotationSize() -
- // fLayouter.getBorderWidth();
- // int y= bounds.y;
- // fShell.setBounds(x, y, bounds.width, bounds.height);
- // }
- //
- // });
-
- fHandCursor = new Cursor(display, SWT.CURSOR_HAND);
- fShell.setCursor(fHandCursor);
- fComposite.setCursor(fHandCursor);
-
- setInfoSystemColor();
- }
-
- private void setInfoSystemColor() {
- Display display = fShell.getDisplay();
- setForegroundColor(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND));
- setBackgroundColor(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
- }
-
- /*
- * @see org.eclipse.jface.text.IInformationControl#setInformation(java.lang.String)
- */
- public void setInformation(String information) {
- setInput(null);
- }
-
- /*
- * @see org.eclipse.jface.text.IInformationControlExtension2#setInput(java.lang.Object)
- */
- public void setInput(Object input) {
- if (fInput != null && fInput.fViewer != null)
- fInput.fViewer.removeViewportListener(fViewportListener);
-
- if (input instanceof AnnotationHoverInput)
- fInput = (AnnotationHoverInput) input;
- else
- fInput = null;
-
- inputChanged(fInput, null);
- }
-
- protected void inputChanged(Object newInput, Object newSelection) {
- refresh();
- }
-
- protected void refresh() {
- adjustItemNumber();
-
- if (fInput == null)
- return;
-
- if (fInput.fAnnotations == null)
- return;
-
- if (fInput.fViewer != null)
- fInput.fViewer.addViewportListener(fViewportListener);
-
- fShell.setRegion(fLayouter.getShellRegion(fInput.fAnnotations.length));
-
- Layout layout = fLayouter.getLayout(fInput.fAnnotations.length);
- fComposite.setLayout(layout);
-
- Control[] children = fComposite.getChildren();
- for (int i = 0; i < fInput.fAnnotations.length; i++) {
- Canvas canvas = (Canvas) children[i];
- Item item = new Item();
- item.canvas = canvas;
- item.fAnnotation = fInput.fAnnotations[i];
- canvas.setData(item);
- canvas.redraw();
- }
-
- }
-
- protected void adjustItemNumber() {
- if (fComposite == null)
- return;
-
- Control[] children = fComposite.getChildren();
- int oldSize = children.length;
- int newSize = fInput == null ? 0 : fInput.fAnnotations.length;
-
- Display display = fShell.getDisplay();
-
- // add missing items
- for (int i = oldSize; i < newSize; i++) {
- Canvas canvas = new Canvas(fComposite, SWT.NONE);
- Object gridData = fLayouter.getLayoutData();
- canvas.setLayoutData(gridData);
- canvas.setBackground(display
- .getSystemColor(SWT.COLOR_INFO_BACKGROUND));
-
- canvas.addPaintListener(fPaintListener);
-
- canvas.addMouseTrackListener(fMouseTrackListener);
-
- canvas.addMouseListener(fMouseListener);
-
- canvas.addListener(SWT.MenuDetect, fMenuDetectListener);
-
- canvas.addDisposeListener(fDisposeListener);
- }
-
- // dispose of exceeding resources
- for (int i = oldSize; i > newSize; i--) {
- Item item = (Item) children[i - 1].getData();
- item.deselect();
- children[i - 1].dispose();
- }
-
- }
-
- /*
- * @see IInformationControl#setVisible(boolean)
- */
- public void setVisible(boolean visible) {
- fShell.setVisible(visible);
- }
-
- /*
- * @see IInformationControl#dispose()
- */
- public void dispose() {
- if (fShell != null) {
- if (!fShell.isDisposed())
- fShell.dispose();
- fShell = null;
- fComposite = null;
- if (fHandCursor != null)
- fHandCursor.dispose();
- fHandCursor = null;
- if (fHoverManager != null)
- fHoverManager.dispose();
- fHoverManager = null;
- fSelection = null;
- }
- }
-
- /*
- * @see org.eclipse.jface.text.IInformationControlExtension#hasContents()
- */
- public boolean hasContents() {
- return fInput.fAnnotations != null && fInput.fAnnotations.length > 0;
- }
-
- /*
- * @see org.eclipse.jface.text.IInformationControl#setSizeConstraints(int,
- * int)
- */
- public void setSizeConstraints(int maxWidth, int maxHeight) {
- // fMaxWidth= maxWidth;
- // fMaxHeight= maxHeight;
- }
-
- /*
- * @see org.eclipse.jface.text.IInformationControl#computeSizeHint()
- */
- public Point computeSizeHint() {
- return fShell.computeSize(SWT.DEFAULT, SWT.DEFAULT);
- }
-
- /*
- * @see IInformationControl#setLocation(Point)
- */
- public void setLocation(Point location) {
- fShell.setLocation(location);
- }
-
- /*
- * @see IInformationControl#setSize(int, int)
- */
- public void setSize(int width, int height) {
- fShell.setSize(width, height);
- }
-
- /*
- * @see IInformationControl#addDisposeListener(DisposeListener)
- */
- public void addDisposeListener(DisposeListener listener) {
- fShell.addDisposeListener(listener);
- }
-
- /*
- * @see IInformationControl#removeDisposeListener(DisposeListener)
- */
- public void removeDisposeListener(DisposeListener listener) {
- fShell.removeDisposeListener(listener);
- }
-
- /*
- * @see IInformationControl#setForegroundColor(Color)
- */
- public void setForegroundColor(Color foreground) {
- fComposite.setForeground(foreground);
- }
-
- /*
- * @see IInformationControl#setBackgroundColor(Color)
- */
- public void setBackgroundColor(Color background) {
- fComposite.setBackground(background);
- }
-
- /*
- * @see IInformationControl#isFocusControl()
- */
- public boolean isFocusControl() {
- if (fComposite.isFocusControl())
- return true;
-
- Control[] children = fComposite.getChildren();
- for (int i = 0; i < children.length; i++) {
- if (children[i].isFocusControl())
- return true;
- }
- return false;
- }
-
- /*
- * @see IInformationControl#setFocus()
- */
- public void setFocus() {
- fShell.forceFocus();
- }
-
- /*
- * @see IInformationControl#addFocusListener(FocusListener)
- */
- public void addFocusListener(FocusListener listener) {
- fShell.addFocusListener(listener);
- }
-
- /*
- * @see IInformationControl#removeFocusListener(FocusListener)
- */
- public void removeFocusListener(FocusListener listener) {
- fShell.removeFocusListener(listener);
- }
-
- private StyleRange[] setViewerBackground(Annotation annotation) {
- StyledText text = fInput.fViewer.getTextWidget();
- if (text == null || text.isDisposed())
- return null;
-
- Display disp = text.getDisplay();
-
- Position pos = fInput.model.getPosition(annotation);
- if (pos == null)
- return null;
-
- IRegion region = ((TextViewer) fInput.fViewer)
- .modelRange2WidgetRange(new Region(pos.offset, pos.length));
- if (region == null)
- return null;
-
- StyleRange[] ranges = text.getStyleRanges(region.getOffset(), region
- .getLength());
-
- List undoRanges = new ArrayList(ranges.length);
- for (int i = 0; i < ranges.length; i++) {
- undoRanges.add(ranges[i].clone());
- }
-
- int offset = region.getOffset();
- StyleRange current = undoRanges.size() > 0 ? (StyleRange) undoRanges
- .get(0) : null;
- int curStart = current != null ? current.start : region.getOffset()
- + region.getLength();
- int curEnd = current != null ? current.start + current.length : -1;
- int index = 0;
-
- // fill no-style regions
- while (curEnd < region.getOffset() + region.getLength()) {
- // add empty range
- if (curStart > offset) {
- StyleRange undoRange = new StyleRange(offset,
- curStart - offset, null, null);
- undoRanges.add(index, undoRange);
- index++;
- }
-
- // step
- index++;
- if (index < undoRanges.size()) {
- offset = curEnd;
- current = (StyleRange) undoRanges.get(index);
- curStart = current.start;
- curEnd = current.start + current.length;
- } else if (index == undoRanges.size()) {
- // last one
- offset = curEnd;
- current = null;
- curStart = region.getOffset() + region.getLength();
- curEnd = -1;
- } else
- curEnd = region.getOffset() + region.getLength();
- }
-
- // create modified styles (with background)
- List shadedRanges = new ArrayList(undoRanges.size());
- for (Iterator it = undoRanges.iterator(); it.hasNext();) {
- StyleRange range = (StyleRange) ((StyleRange) it.next()).clone();
- shadedRanges.add(range);
- range.background = getHighlightColor(disp);
- }
-
- // set the ranges one by one
- for (Iterator iter = shadedRanges.iterator(); iter.hasNext();) {
- text.setStyleRange((StyleRange) iter.next());
-
- }
-
- return (StyleRange[]) undoRanges.toArray(undoRanges
- .toArray(new StyleRange[0]));
- }
-
- private void resetViewerBackground(StyleRange[] oldRanges) {
-
- if (oldRanges == null)
- return;
-
- if (fInput == null)
- return;
-
- StyledText text = fInput.fViewer.getTextWidget();
- if (text == null || text.isDisposed())
- return;
-
- // set the ranges one by one
- for (int i = 0; i < oldRanges.length; i++) {
- text.setStyleRange(oldRanges[i]);
- }
- }
-
- private Color getHighlightColor(Display disp) {
- return disp.getSystemColor(SWT.COLOR_GRAY);
- }
-
- private Color getSelectionColor(Display disp) {
- return disp.getSystemColor(SWT.COLOR_GRAY);
- }
-
-}
git://secure.phpeclipse.com / phpeclipse.git / blobdiff