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优化 JFXListView 的平滑滚动效果 (#5052)

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This commit is contained in:
Glavo
2025-12-23 20:20:52 +08:00
committed by GitHub
parent cc87f6cdd1
commit 253440844e
1 changed files with 1 additions and 12 deletions
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13
HMCL/src/main/java/org/jackhuang/hmcl/ui/ScrollUtils.java
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@@ -25,7 +25,6 @@ import javafx.animation.Animation.Status;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.event.EventHandler;
import javafx.scene.control.IndexedCell;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.skin.VirtualFlow;
import javafx.scene.input.MouseEvent;
@@ -226,7 +225,6 @@ final class ScrollUtils {
final double[] derivatives = new double[FRICTIONS.length];
Timeline timeline = new Timeline();
Holder<ScrollDirection> scrollDirectionHolder = new Holder<>();
final EventHandler<MouseEvent> mouseHandler = event -> timeline.stop();
final EventHandler<ScrollEvent> scrollHandler = event -> {
if (event.getEventType() == ScrollEvent.SCROLL) {
@@ -234,7 +232,6 @@ final class ScrollUtils {
if (scrollDirection == ScrollDirection.LEFT || scrollDirection == ScrollDirection.RIGHT) {
return;
}
scrollDirectionHolder.value = scrollDirection;
double currentSpeed = isTrackPad(event, scrollDirection) ? speed / trackPadAdjustment : speed;
derivatives[0] += scrollDirection.intDirection * currentSpeed;
@@ -256,15 +253,7 @@ final class ScrollUtils {
}
double dy = derivatives[derivatives.length - 1];
int cellCount = virtualFlow.getCellCount();
IndexedCell<?> firstVisibleCell = virtualFlow.getFirstVisibleCell();
double height = firstVisibleCell != null ? firstVisibleCell.getHeight() * cellCount : 0.0;
double delta = height > 0.0
? dy / height
: (scrollDirectionHolder.value == ScrollDirection.DOWN ? 0.001 : -0.001);
virtualFlow.setPosition(Math.min(Math.max(virtualFlow.getPosition() + delta, 0), 1));
virtualFlow.scrollPixels(dy);
if (Math.abs(dy) < 0.001) {
timeline.stop();