JDK-8123319 : Canvas: error with GraphicsContext.setStroke(new LinearGradient( ...
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: 8
  • Priority: P3
  • Status: Resolved
  • Resolution: Duplicate
  • Submitted: 2013-07-11
  • Updated: 2015-06-17
  • Resolved: 2013-08-12
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JDK 8
8Resolved
Related Reports
Duplicate :  
JDK-8118152 - error rendering Arc.setStroke
Relates :  
JDK-8118152 - error rendering Arc.setStroke
Relates :  
JDK-8120008 - On Windows, full screen prompt is garbled.
Description
run application attached: there is a canvas with an oval in it.
the oval is drawn using setStroke(new LinearGradient( ...

see screenshot:
actual (left) and expected (right)
Comments
Only happens when running with a 64 bits machine.
12-08-2013
Affected tests: SceneGraphAutomated/test/scenegraph/functional/CanvasShape2Test/StrokeOval_STROKE_GRAD SceneGraphAutomated/test/scenegraph/functional/CanvasShape2Test/StrokeOval_TRANSPARENT SceneGraphAutomated/test/scenegraph/functional/CanvasShapePathElements2Test/PathROUNDNonZeroFillRuleSTROKE_GRAD
30-07-2013
Joe, Jim: can you reproduce this problem on your Windows ? Thanks
23-07-2013
Thank you Victor. Not sure what to tell you, it works fine for me on my Windows 7 and 8.
23-07-2013
same bug with your source code. environment: Win7, promotion build 99. same bug with hardware and software rendering.
23-07-2013
works for me on Mac and Windows Again, I had to change the test case in order for it to run mac. Please let me know if you see the problem with the following start() @Override public void start(Stage primaryStage) throws Exception { final Canvas canvas = new Canvas(120, 120); GraphicsContext gc = canvas.getGraphicsContext2D(); gc.setStroke(new LinearGradient( 0, 0, 1, 4, true, CycleMethod.NO_CYCLE, new Stop[] { new Stop(0, Color.RED), new Stop(0.3f, Color.BLUE) })); gc.setLineWidth(18f); gc.stroke(); gc.strokeOval(DEFAULT_RADIUS / 2, DEFAULT_RADIUS / 2, 2 * DEFAULT_RADIUS, DEFAULT_RADIUS); Pane pane = new VBox(canvas); pane.setPrefSize(180, 190); pane.setStyle("-fx-border-color: darkgray;"); Group root = new Group(pane); primaryStage.setScene(new Scene(root, 300, 300)); primaryStage.show(); }
18-07-2013