avoid NullPointerException in debug

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / BracketPainter.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/BracketPainter.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/BracketPainter.java
index 55eea03..e105679 100644 (file)
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/BracketPainter.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/BracketPainter.java
@@ -8,7 +8,7 @@ package net.sourceforge.phpeclipse.phpeditor;
 import net.sourceforge.phpdt.internal.ui.text.PHPPairMatcher;
 
 import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.ITextViewerExtension3;
+import org.eclipse.jface.text.ITextViewerExtension5;
 import org.eclipse.jface.text.Position;
 import org.eclipse.jface.text.Region;
 import org.eclipse.jface.text.source.ISourceViewer;
@@ -21,38 +21,38 @@ import org.eclipse.swt.graphics.Point;
 
 
 public final class BracketPainter implements IPainter, PaintListener {
-                       
+
        private PHPPairMatcher fMatcher= new PHPPairMatcher(new char[] { '{', '}', '(', ')', '[', ']' });
        private Position fBracketPosition= new Position(0, 0);
        private int fAnchor;
-       
+
        private boolean fIsActive= false;
        private ISourceViewer fSourceViewer;
        private StyledText fTextWidget;
        private Color fColor;
-       
+
        private IPositionManager fPositionManager;
-       
-       
+
+
        public BracketPainter(ISourceViewer sourceViewer) {
                fSourceViewer= sourceViewer;
                fTextWidget= sourceViewer.getTextWidget();
        }
-       
+
        public void setHighlightColor(Color color) {
                fColor= color;
        }
-                               
+
        public void dispose() {
                if (fMatcher != null) {
                        fMatcher.dispose();
                        fMatcher= null;
                }
-               
+
                fColor= null;
                fTextWidget= null;
        }
-                               
+
        public void deactivate(boolean redraw) {
                if (fIsActive) {
                        fIsActive= false;
@@ -63,57 +63,57 @@ public final class BracketPainter implements IPainter, PaintListener {
                                handleDrawRequest(null);
                }
        }
-               
+
        public void paintControl(PaintEvent event) {
                if (fTextWidget != null)
                        handleDrawRequest(event.gc);
        }
-       
+
        private void handleDrawRequest(GC gc) {
-               
+
                if (fBracketPosition.isDeleted)
                        return;
-                       
+
                int offset= fBracketPosition.getOffset();
                int length= fBracketPosition.getLength();
                if (length < 1)
                        return;
-                       
-               if (fSourceViewer instanceof ITextViewerExtension3) {
-                       ITextViewerExtension3 extension= (ITextViewerExtension3) fSourceViewer;
+
+               if (fSourceViewer instanceof ITextViewerExtension5) {
+                       ITextViewerExtension5 extension= (ITextViewerExtension5) fSourceViewer;
                        IRegion widgetRange= extension.modelRange2WidgetRange(new Region(offset, length));
                        if (widgetRange == null)
                                return;
-                               
+
                        offset= widgetRange.getOffset();
                        length= widgetRange.getLength();
-                       
+
                } else {
                        IRegion region= fSourceViewer.getVisibleRegion();
                        if (region.getOffset() > offset || region.getOffset() + region.getLength() < offset + length)
                                return;
                        offset -= region.getOffset();
                }
-                       
+
                if (PHPPairMatcher.RIGHT == fAnchor)
                        draw(gc, offset, 1);
-               else 
+               else
                        draw(gc, offset + length -1, 1);
        }
-       
+
        private void draw(GC gc, int offset, int length) {
                if (gc != null) {
                        Point left= fTextWidget.getLocationAtOffset(offset);
                        Point right= fTextWidget.getLocationAtOffset(offset + length);
-                       
+
                        gc.setForeground(fColor);
                        gc.drawRectangle(left.x, left.y, right.x - left.x - 1, gc.getFontMetrics().getHeight() - 1);
-                                                               
+
                } else {
                        fTextWidget.redrawRange(offset, length, true);
                }
        }
-       
+
        /*
         * @see IPainter#paint(int)
         */
@@ -123,19 +123,19 @@ public final class BracketPainter implements IPainter, PaintListener {
                        deactivate(true);
                        return;
                }
-                       
+
                IRegion pair= fMatcher.match(fSourceViewer.getDocument(), selection.x);
                if (pair == null) {
                        deactivate(true);
                        return;
                }
-               
+
                if (fIsActive) {
                        // only if different
-                       if (pair.getOffset() != fBracketPosition.getOffset() || 
-                                       pair.getLength() != fBracketPosition.getLength() || 
+                       if (pair.getOffset() != fBracketPosition.getOffset() ||
+                                       pair.getLength() != fBracketPosition.getLength() ||
                                        fMatcher.getAnchor() != fAnchor) {
-                               
+
                                // remove old highlighting
                                handleDrawRequest(null);
                                // update position
@@ -145,23 +145,23 @@ public final class BracketPainter implements IPainter, PaintListener {
                                fAnchor= fMatcher.getAnchor();
                                // apply new highlighting
                                handleDrawRequest(null);
-                       
+
                        }
                } else {
-                       
+
                        fIsActive= true;
-                       
+
                        fBracketPosition.isDeleted= false;
                        fBracketPosition.offset= pair.getOffset();
                        fBracketPosition.length= pair.getLength();
                        fAnchor= fMatcher.getAnchor();
-                       
+
                        fTextWidget.addPaintListener(this);
                        fPositionManager.addManagedPosition(fBracketPosition);
                        handleDrawRequest(null);
                }
        }
-       
+
        /*
         * @see IPainter#setPositionManager(IPositionManager)
         */