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fix(ScrollArea): synchronize renderingBoIds and add scroll position documentation

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extio-de
2026-10-03 19:21:32 +02:00
parent 8766d41578
commit fe85b72348
1 changed files with 14 additions and 3 deletions
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17
src/main/java/de/extio/game_engine/renderer/container/ScrollArea.java
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@@ -1,5 +1,6 @@
package de.extio.game_engine.renderer.container; package de.extio.game_engine.renderer.container;
import java.util.Collections;
import java.util.HashSet; import java.util.HashSet;
import java.util.Objects; import java.util.Objects;
import java.util.Set; import java.util.Set;
@@ -38,15 +39,15 @@ public class ScrollArea implements WindowComponent {
protected final MutableCoordI2 contentDimension = MutableCoordI2.create(); protected final MutableCoordI2 contentDimension = MutableCoordI2.create();
protected final Set<String> renderingBoIds = new HashSet<>(); protected final Set<String> renderingBoIds = Collections.synchronizedSet(new HashSet<>());
protected final Area2 relativeArea = new Area2(ImmutableCoordI2.zero(), ImmutableCoordI2.one()); protected final Area2 relativeArea = new Area2(ImmutableCoordI2.zero(), ImmutableCoordI2.one());
protected Window parent; protected Window parent;
protected double scrollPositionVertical = 1.0; protected double scrollPositionVertical = 1.0; // 1.0 = top, 0.0 = bottom
protected double scrollPositionHorizontal = 0.0; protected double scrollPositionHorizontal = 0.0; // 0.0 = left, 1.0 = right
protected int verticalScrollInputRevision = 0; protected int verticalScrollInputRevision = 0;
@@ -180,6 +181,11 @@ public class ScrollArea implements WindowComponent {
this.parent.removeRenderingBo(renderingBoId); this.parent.removeRenderingBo(renderingBoId);
} }
/**
* Returns the vertical scroll position of this scroll area.
*
* @return the vertical scroll position, where 1.0 is the top and 0.0 is the bottom
*/
public double getScrollPositionVertical() { public double getScrollPositionVertical() {
return this.scrollPositionVertical; return this.scrollPositionVertical;
} }
@@ -212,6 +218,11 @@ public class ScrollArea implements WindowComponent {
this.draw(); this.draw();
} }
/**
* Sets the vertical scroll position of this scroll area.
*
* @param scrollPositionVertical the vertical scroll position, where 1.0 is the top and 0.0 is the bottom
*/
public void setScrollPositionVertical(final double scrollPositionVertical) { public void setScrollPositionVertical(final double scrollPositionVertical) {
this.updateVerticalScrollPosition(scrollPositionVertical, false); this.updateVerticalScrollPosition(scrollPositionVertical, false);
this.draw(); this.draw();