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fixed/improved vertical position of text when scaled on HiDPI screens on Windows when running on Java 8

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This commit is contained in:
Karl Tauber
2020-06-22 21:05:11 +02:00
parent 15a714faed
commit 7fb7a1ac85
4 changed files with 74 additions and 29 deletions
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21
flatlaf-core/src/main/java/com/formdev/flatlaf/util/HiDPIUtils.java
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@@ -18,6 +18,7 @@ package com.formdev.flatlaf.util;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.text.AttributedCharacterIterator;
@@ -115,9 +116,12 @@ public class HiDPIUtils
* This methods computes a correction value for the Y position.
*/
public static float computeTextYCorrection( Graphics2D g ) {
if( !useTextYCorrection() || !SystemInfo.IS_WINDOWS || !SystemInfo.IS_JAVA_9_OR_LATER )
if( !useTextYCorrection() || !SystemInfo.IS_WINDOWS )
return 0;
if( !SystemInfo.IS_JAVA_9_OR_LATER )
return UIScale.getUserScaleFactor() > 1 ? -UIScale.scale( 0.625f ) : 0;
AffineTransform t = g.getTransform();
double scaleY = t.getScaleY();
if( scaleY < 1.25 )
@@ -207,6 +211,21 @@ public class HiDPIUtils
public void drawString( AttributedCharacterIterator iterator, float x, float y ) {
super.drawString( iterator, x, y + yCorrection );
}
@Override
public void drawChars( char[] data, int offset, int length, int x, int y ) {
super.drawChars( data, offset, length, x, Math.round( y + yCorrection ) );
}
@Override
public void drawBytes( byte[] data, int offset, int length, int x, int y ) {
super.drawBytes( data, offset, length, x, Math.round( y + yCorrection ) );
}
@Override
public void drawGlyphVector( GlyphVector g, float x, float y ) {
super.drawGlyphVector( g, x, y + yCorrection );
}
};
}
}