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added a plausibility check to the dpi calculation

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hneemann 2017-06-07 13:36:07 +02:00
parent 6606a7aae0
commit 1b032b7975
1 changed files with 10 additions and 1 deletions
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11
src/main/java/de/neemann/digital/core/element/Keys.java
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@ -372,7 +372,16 @@ public final class Keys {
private static int getDefaultScreenResolution() {
try {
return Toolkit.getDefaultToolkit().getScreenResolution();
int dpi = Toolkit.getDefaultToolkit().getScreenResolution();
// plausibility check
int widthInPixel = Toolkit.getDefaultToolkit().getScreenSize().width;
int widthInInch = widthInPixel / dpi;
// most people don't use a screen larger than 27 inch, so the resolution is presumably wrong
if (widthInInch > 27)
dpi = widthInPixel / 27;
return dpi;
} catch (HeadlessException e) {
return 95;
}