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-rw-r--r--src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java40
1 files changed, 25 insertions, 15 deletions
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java
index e83d891..e4a3715 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WListPanel.java
@@ -15,7 +15,7 @@ import java.util.function.Supplier;
/**
* Similar to the RecyclerView in Android, this widget represents a scrollable list of items.
- *
+ *
* <p> D is the type of data represented. The data must reside in some ordered backing {@code List<D>}.
* D's *must* have working equals and hashCode methods to distinguish them from each other!
* <p> W is the WWidget class that will represent a single D of data.
@@ -36,7 +36,7 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
* to display the passed data.
*/
protected BiConsumer<D, W> configurator;
-
+
protected HashMap<D, W> configured = new HashMap<>();
protected List<W> unconfigured = new ArrayList<>();
@@ -49,7 +49,7 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
* Whether this list has a fixed height for items.
*/
protected boolean fixedHeight = false;
-
+
protected int margin = 4;
/**
@@ -80,7 +80,7 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
layout();
lastScroll = scrollBar.getValue();
}
-
+
super.paint(matrices, x, y, mouseX, mouseY);
/*
if (getBackgroundPainter()!=null) {
@@ -110,16 +110,16 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
@Override
public void layout() {
-
+
this.children.clear();
this.children.add(scrollBar);
scrollBar.setLocation(this.width-scrollBar.getWidth(), 0);
scrollBar.setSize(8, this.height);
//super.layout();
-
+
//System.out.println("Validating");
-
+
//Recompute cellHeight if needed
if (!fixedHeight) {
if (unconfigured.isEmpty()) {
@@ -137,25 +137,25 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
}
}
if (cellHeight<4) cellHeight=4;
-
+
int layoutHeight = this.getHeight()-(margin*2);
int cellsHigh = Math.max(layoutHeight / cellHeight, 1); // At least one cell is always visible
-
+
//System.out.println("Adding children...");
-
+
//this.children.clear();
//this.children.add(scrollBar);
//scrollBar.setLocation(this.width-scrollBar.getWidth(), 0);
//scrollBar.setSize(8, this.height);
-
+
//Fix up the scrollbar handle and track metrics
scrollBar.setWindow(cellsHigh);
scrollBar.setMaxValue(data.size());
int scrollOffset = scrollBar.getValue();
//System.out.println(scrollOffset);
-
+
int presentCells = Math.min(data.size()-scrollOffset, cellsHigh);
-
+
if (presentCells>0) {
for(int i=0; i<presentCells+1; i++) {
int index = i+scrollOffset;
@@ -172,7 +172,7 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
configurator.accept(d, w);
configured.put(d, w);
}
-
+
//At this point, w is nonnull and configured by d
if (w.canResize()) {
w.setSize(this.width-(margin*2) - scrollBar.getWidth(), cellHeight);
@@ -182,7 +182,7 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
this.children.add(w);
}
}
-
+
//System.out.println("Children: "+children.size());
}
@@ -202,4 +202,14 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
public InputResult onMouseScroll(int x, int y, double amount) {
return scrollBar.onMouseScroll(0, 0, amount);
}
+
+ /**
+ * Gets the {@link io.github.cottonmc.cotton.gui.widget.WScrollBar} attached to this panel.
+ *
+ * @return the scroll bar bundled.
+ */
+ public WScrollBar getScrollBar() {
+ return scrollBar;
+ }
+
}