<AWT Dev> RFR: 8212226 SurfaceManager throws "Invalid Image variant" for MultiResolutionImage (Windows)
Alexander Zuev
alexander.zuev at oracle.com
Fri Jul 31 18:08:04 UTC 2020
I slightly fixed the test and added it to the fix. New webrev is here:
http://cr.openjdk.java.net/~kizune/8212226/webrev.03/
On 7/29/2020 1:11 AM, Sergey Bylokhov wrote:
> On 27.07.2020 23:43, Alexander Zuev wrote:
>> As for the test i have a manual test that i use to reproduce the
>> situation but i am not sure i can make
>> the automated test case - the configuration required is quite unique.
>> I tried to play with the setting
>> that manages the magnification factor but changing it does not
>> trigger the bug.
>
> I guess something like this should work:
>
> import java.awt.Color;
> import java.awt.Graphics;
> import java.awt.Graphics2D;
> import java.awt.Image;
> import java.awt.image.BaseMultiResolutionImage;
> import java.awt.image.BufferedImage;
> import java.awt.image.ImageObserver;
> import java.awt.image.ImageProducer;
>
> import static java.awt.image.BufferedImage.TYPE_INT_RGB;
>
> public final class SkipRequestedImageVariant {
>
> public static void main(String[] args) {
> var mri = new BaseMultiResolutionImage(1,
> generateFakeImage(),
> generateImage(200,
> Color.GREEN),
> generateFakeImage());
>
> BufferedImage target = new BufferedImage(500, 500, TYPE_INT_RGB);
> Graphics2D g2d = target.createGraphics();
> g2d.drawImage(mri, 0, 0, 500, 500, null);
> g2d.dispose();
> if (Color.GREEN.getRGB() != target.getRGB(1, 1)) {
> throw new RuntimeException("Wrong resolution variant was
> used");
> }
> }
>
> private static BufferedImage generateImage(int size, Color c) {
> BufferedImage img = new BufferedImage(size, size, TYPE_INT_RGB);
> Graphics g = img.createGraphics();
> g.setColor(c);
> g.fillRect(0, 0, size, size);
> g.dispose();
> return img;
> }
>
> private static Image generateFakeImage() {
> return new Image(){
> @Override
> public int getWidth(ImageObserver observer) {
> return -1;
> }
>
> @Override
> public int getHeight(ImageObserver observer) {
> return -1;
> }
>
> @Override
> public ImageProducer getSource() {
> return null;
> }
>
> @Override
> public Graphics getGraphics() {
> return null;
> }
>
> @Override
> public Object getProperty(String name, ImageObserver
> observer) {
> return null;
> }
> };
> }
> }
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