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update ImageView group, piles

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should fix concurrentmodification and npe prevention
This commit is contained in:
kevlahnota
2025-09-07 13:54:52 +08:00
committed by GitHub
parent 1671a3298e
commit 9284775921
1 changed files with 96 additions and 14 deletions
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110
forge-gui-mobile/src/forge/itemmanager/views/ImageView.java
View File

@@ -78,6 +78,59 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
private Supplier<List<Group>> groups = Suppliers.memoize(ArrayList::new);
private Function<Entry<? extends InventoryItem, Integer>, ?> fnIsFavorite = ColumnDef.FAVORITE.fnDisplay, fnPrice = null;
private class SafeList<T> {
private final List<T> internalList;
private final Object lock = new Object(); // Object for synchronization
private SafeList() {
this.internalList = new ArrayList<>();
}
private void add(T element) {
synchronized (lock) {
internalList.add(element);
}
}
private T get(int index) {
synchronized (lock) {
return internalList.get(index);
}
}
private T remove(int index) {
synchronized (lock) {
return internalList.remove(index);
}
}
private int size() {
synchronized (lock) {
return internalList.size();
}
}
private void clear() {
synchronized (lock) {
internalList.clear();
}
}
private boolean isEmpty() {
synchronized (lock) {
return internalList.isEmpty();
}
}
private boolean addAll(Collection c) {
synchronized (lock) {
return internalList.addAll(c);
}
}
// Add other list operations as needed, ensuring synchronization
}
private class ExpandCollapseButton extends FLabel {
private boolean isAllCollapsed;
@@ -330,11 +383,17 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
if (group.getBottom() < visibleTop) {
continue;
}
for (Pile pile : group.piles) {
for (int i = 0; i < group.piles.size(); i++) {
Pile pile = group.piles.get(i);
if (pile == null)
continue;
if (group.getBottom() < visibleTop) {
continue;
}
for (ItemInfo item : pile.items) {
for (int j = 0; j < pile.items.size(); j++) {
ItemInfo item = pile.items.get(j);
if (item == null)
continue;
if (item.getTop() >= visibleTop) {
return item;
}
@@ -454,7 +513,8 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
//use TreeMap to build pile set so iterating below sorts on key
ColumnDef groupPileBy = groupBy == null ? pileBy : groupBy.getGroupPileBy(i, pileBy);
Map<Comparable<?>, Pile> piles = new TreeMap<>();
for (ItemInfo itemInfo : group.items) {
for (int j = 0; j < group.items.size(); j++) {
ItemInfo itemInfo = group.items.get(j);
if (itemInfo == null)
continue;
Comparable<?> key = groupPileBy.fnSort.apply(itemInfo);
@@ -492,7 +552,10 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
Pile pile = new Pile();
x = 0;
for (ItemInfo itemInfo : group.items) {
for (int j = 0; j < group.items.size(); j++) {
ItemInfo itemInfo = group.items.get(j);
if (itemInfo == null)
continue;
itemInfo.pos = CardStackPosition.Top;
if (pile.items.size() == columnCount) {
@@ -519,7 +582,10 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
for (int j = 0; j < group.piles.size(); j++) {
Pile pile = group.piles.get(j);
y = pileY;
for (ItemInfo itemInfo : pile.items) {
for (int k = 0; k < pile.items.size(); k++) {
ItemInfo itemInfo = pile.items.get(k);
if (itemInfo == null)
continue;
itemInfo.pos = CardStackPosition.BehindVert;
itemInfo.setBounds(x, y, itemWidth, itemHeight);
y += dy;
@@ -551,15 +617,24 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
if (group.isCollapsed && pileBy == null) {
//Piles won't have been generated in this case.
for(ItemInfo itemInfo : group.items) {
for (int i = 0; i < group.items.size(); i++) {
ItemInfo itemInfo = group.items.get(i);
if (itemInfo == null)
continue;
itemInfo.index = index++;
orderedItems.get().add(itemInfo);
}
continue;
}
for (Pile pile : group.piles) {
for (ItemInfo itemInfo : pile.items) {
for (int i = 0; i < group.piles.size(); i++) {
Pile pile = group.piles.get(i);
if (pile == null)
continue;
for (int j = 0; j < pile.items.size(); j++) {
ItemInfo itemInfo = pile.items.get(j);
if (itemInfo == null)
continue;
itemInfo.index = index++;
orderedItems.get().add(itemInfo);
}
@@ -657,7 +732,10 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
@Override
public int getIndexOfItem(T item) {
for (Group group : groups.get()) {
for (ItemInfo itemInfo : group.items) {
for (int i = 0; i < group.items.size(); i++) {
ItemInfo itemInfo = group.items.get(i);
if (itemInfo == null)
continue;
if (itemInfo.item == item) {
//if group containing item is collapsed, expand it so the item can be selected and has a valid index
if (group.isCollapsed) {
@@ -840,8 +918,8 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
}
private class Group extends FScrollPane {
private final List<ItemInfo> items = new ArrayList<>();
private final List<Pile> piles = new ArrayList<>();
private final SafeList<ItemInfo> items = new SafeList<>();
private final SafeList<Pile> piles = new SafeList<>();
private final String name;
private boolean isCollapsed;
private float scrollWidth;
@@ -898,7 +976,8 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
float visibleLeft = getScrollLeft();
float visibleRight = visibleLeft + getWidth();
for (Pile pile : piles) {
for (int i = 0; i < piles.size(); i++) {
Pile pile = piles.get(i);
if (pile == null)
continue;
if (pile.getRight() < visibleLeft) {
@@ -966,7 +1045,7 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
}
private class Pile extends FDisplayObject {
private final List<ItemInfo> items = new ArrayList<>();
private final SafeList<ItemInfo> items = new SafeList<>();
@Override
public void draw(Graphics g) {
@@ -974,7 +1053,10 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
final float visibleBottom = visibleTop + getScroller().getHeight();
ItemInfo skippedItem = null;
for (ItemInfo itemInfo : items) {
for (int i = 0; i < items.size(); i++) {
ItemInfo itemInfo = items.get(i);
if (itemInfo == null)
continue;
if (itemInfo.getBottom() < visibleTop) {
continue;
}