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优化 AdvancedListBox 滚动条显示逻辑

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This commit is contained in:
rootwhois 2025-09-19 22:44:05 +08:00
parent cf72cc3274
commit 8b4ff578a2
1 changed files with 9 additions and 3 deletions
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12
HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/AdvancedListBox.java
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@ -31,6 +31,7 @@ import java.util.function.Consumer;
public class AdvancedListBox extends ScrollPane {
private final VBox container = new VBox();
private ScrollBarPolicy lastVbarPolicy = null;
{
setContent(container);
@ -40,7 +41,6 @@ public class AdvancedListBox extends ScrollPane {
setFitToHeight(true);
setFitToWidth(true);
setHbarPolicy(ScrollBarPolicy.NEVER);
setVbarPolicy(ScrollBarPolicy.NEVER);
container.getStyleClass().add("advanced-list-box-content");
@ -50,10 +50,16 @@ public class AdvancedListBox extends ScrollPane {
@Override
protected void layoutChildren() {
super.layoutChildren();
ScrollBarPolicy newPolicy;
if (container.getHeight() > getHeight()) {
setVbarPolicy(ScrollBarPolicy.AS_NEEDED);
newPolicy = ScrollBarPolicy.AS_NEEDED;
} else {
setVbarPolicy(ScrollBarPolicy.NEVER);
newPolicy = ScrollBarPolicy.NEVER;
}
if (lastVbarPolicy == null || newPolicy != lastVbarPolicy) {
setVbarPolicy(newPolicy);
lastVbarPolicy = newPolicy;
}
}