Bugzilla – Full Text Bug Listing
| Summary: | GC#textExtents(String) throws ArrayIndexOutOfBoundsException with GDI+ and if '\r' is present in the string | ||||||
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| Product: | [Eclipse Project] Platform | Reporter: | Alex Boyko <aboyko> | ||||
| Component: | SWT | Assignee: | Felipe Heidrich <eclipse.felipe> | ||||
| Status: | RESOLVED FIXED | QA Contact: | |||||
| Severity: | critical | ||||||
| Priority: | P3 | CC: | ahunter.eclipse, eclipse.felipe, gheorghe | ||||
| Version: | 3.6 | Flags: | gheorghe:
review+
grant_gayed: review+ |
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| Target Milestone: | 3.6 RC2 | ||||||
| Hardware: | PC | ||||||
| OS: | Windows XP | ||||||
| Whiteboard: | |||||||
| Attachments: |
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apparently we never tested this case, we should fix this for the next milestone. Created attachment 168590 [details]
patch
The patch fixes this case, more testing would be good.
Thank you for reporting this bug.
This fix worked great for me. Didn't notice any problems with it. Thanks for getting back on this so quickly! Please, review the patch so we can have this code out today. You can reproduce the problem on any windows machine (that supports advance graphics). Fixed in HEAD > 20100517 |
Try the following snippet: import org.eclipse.swt.SWT; import org.eclipse.swt.events.PaintEvent; import org.eclipse.swt.events.PaintListener; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class TestSnippet { private static String text = "Label\r\n"; //$NON-NLS-1$ public static void main(String [] args) { final Display display = new Display(); final Shell shell = new Shell(display); final Font font = new Font(display, "Tahoma", 16, SWT.BOLD); //$NON-NLS-1$ shell.addPaintListener(new PaintListener() { public void paintControl(PaintEvent event) { event.gc.setAntialias(SWT.ON); event.gc.setFont(font); event.gc.drawText(text, 10, 10); Point pt = event.gc.textExtent(text); event.gc.setClipping(10, 10 + pt.y, pt.x - 1, pt.y); event.gc.drawText(text, 10, 10 + pt.y); } }); shell.setBounds(10, 10, 200, 200); shell.open (); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } font.dispose(); display.dispose(); } } Launch it as "Java Application" and get ArrayIndexOutOfBoundsException If you remove '\r' from the text, no exception If you don't set anti-alias (i.e. advanced flag - GDI+ support) it will also work. Think it's a typo, hence priority == critical just to make sure this gets fixed asap.