Add more getters and setters for scroll bars

Closes #34.

2 files changed, 31 insertions, 4 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 0c002da..32e56c4 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
@@ -122,9 +122,9 @@ public class WListPanel<D, W extends WWidget> extends WClippedPanel {
 		//scrollBar.setSize(8, this.height);
 		
 		//Fix up the scrollbar handle and track metrics
-		scrollBar.window = cellsHigh;
+		scrollBar.setWindow(cellsHigh);
 		//scrollBar.setMaxValue(data.size());
-		int scrollOffset = scrollBar.value;
+		int scrollOffset = scrollBar.getValue();
 		//System.out.println(scrollOffset);
 		
 		int presentCells = Math.min(data.size()-scrollOffset, cellsHigh);
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java b/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java
index e493152..71ec4e4 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/widget/WScrollBar.java
@@ -121,13 +121,40 @@ public class WScrollBar extends WWidget {
 	public int getValue() {
 		return value;
 	}
-	
+
+	public WScrollBar setValue(int value) {
+		this.value = value;
+		checkValue();
+		return this;
+	}
+
+	public int getMaxValue() {
+		return maxValue;
+	}
+
 	public WScrollBar setMaxValue(int max) {
 		this.maxValue = max;
+		checkValue();
+		return this;
+	}
+
+	public int getWindow() {
+		return window;
+	}
+
+	public WScrollBar setWindow(int window) {
+		this.window = window;
+		return this;
+	}
+
+	/**
+	 * Checks that the current value is in the correct range
+	 * and adjusts it if needed.
+	 */
+	protected void checkValue() {
 		if (this.value>maxValue-window) {
 			this.value = maxValue-window;
 		}
 		if (this.value<0) this.value = 0;
-		return this;
 	}
 }