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HiDPIUtils: reimplemented HiDPIUtils.scale() to make it easier to read and more understandable

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(no longer re-using dx1 and dy2 variables for different kind of values)
This commit is contained in:
Karl Tauber
2022-06-05 23:43:13 +02:00
parent d60bd5df14
commit d2acb2c98a
1 changed files with 10 additions and 11 deletions
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21
flatlaf-core/src/main/java/com/formdev/flatlaf/util/HiDPIUtils.java
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@@ -81,19 +81,18 @@ public class HiDPIUtils
* which is used by Graphics.fillRect(). * which is used by Graphics.fillRect().
*/ */
private static Rectangle2D.Double scale( AffineTransform transform, int x, int y, int width, int height ) { private static Rectangle2D.Double scale( AffineTransform transform, int x, int y, int width, int height ) {
double dx1 = transform.getScaleX(); double scaleX = transform.getScaleX();
double dy2 = transform.getScaleY(); double scaleY = transform.getScaleY();
double px = x * dx1 + transform.getTranslateX();
double py = y * dy2 + transform.getTranslateY();
dx1 *= width;
dy2 *= height;
double newx = normalize( px ); double px = (x * scaleX) + transform.getTranslateX();
double newy = normalize( py ); double py = (y * scaleY) + transform.getTranslateY();
dx1 = normalize( px + dx1 ) - newx;
dy2 = normalize( py + dy2 ) - newy;
return new Rectangle2D.Double( newx, newy, dx1, dy2 ); double newX = normalize( px );
double newY = normalize( py );
double newWidth = normalize( px + (width * scaleX) ) - newX;
double newHeight = normalize( py + (height * scaleY) ) - newY;
return new Rectangle2D.Double( newX, newY, newWidth, newHeight );
} }
private static double normalize( double value ) { private static double normalize( double value ) {