Fixed colors not correctly displaying when first opening ClickGUI.

src/main/java/net/aoba/gui/Color.java

@@ -31,7 +31,7 @@ public class Color {
 	public int g;
 	public int b;
 	public int alpha = 255;
-	
+
 	public float hue;
 	public float saturation;
 	public float luminance;
@@ -47,15 +47,54 @@ public Color(int r, int g, int b) {
 		this.r = r;
 		this.g = g;
 		this.b = b;
+
+		HSVFromRGB(r, g, b);
 	}
 
 	public Color(int r, int g, int b, int alpha) {
 		this.r = r;
 		this.g = g;
 		this.b = b;
+
+		HSVFromRGB(r, g, b);
+
 		this.alpha = alpha;
 	}
-
+
+	private void HSVFromRGB(int r, int g, int b) {
+		// Calculate HSV value
+		float rPrime = r / 255.0f;
+		float gPrime = g / 255.0f;
+		float bPrime = b / 255.0f;
+
+		float cMax = Math.max(rPrime, Math.max(gPrime, bPrime));
+		float cMin = Math.min(rPrime, Math.min(gPrime, bPrime));
+
+		float delta = cMax - cMin;
+
+		// Calculate Hue
+		if(delta == 0.0f) {
+			hue = 0.0f;
+		}else {
+			if (cMax == rPrime) {
+				hue = (60.0f * (((gPrime - bPrime) / delta) % 6));
+			} else if (cMax == gPrime) {
+				hue = (60.0f * (((bPrime - rPrime) / delta) + 2));
+			} else if (cMax == bPrime) {
+				hue = (60.0f * (((rPrime - gPrime) / delta) + 2));
+			}
+		}
+
+		// Calculate Saturation
+		if (cMax == 0.0f)
+			saturation = 0.0f;
+		else
+			saturation = delta / cMax;
+
+		// Calculate Luminance
+		luminance = cMax;
+	}
+
 	/**
 	 * Color Constructor using HSV color space.
 	 * 
@@ -79,9 +118,11 @@ public void setHSV(float hue, float saturation, float luminance) {
 		this.saturation = saturation;
 		this.luminance = luminance;
 		Color vec = hsv2rgb(hue, saturation, luminance);
-		this.r = vec.r;
-		this.g = vec.g;
-		this.b = vec.b;
+		if(vec != null) {
+			this.r = vec.r;
+			this.g = vec.g;
+			this.b = vec.b;
+		}
 	}
 
 	/**
@@ -103,12 +144,11 @@ public void setRGBA(int r, int g, int b, int alpha) {
 		this.b = b;
 		this.alpha = alpha;
 	}
-	
+
 	public void setAlpha(int alpha) {
 		this.alpha = alpha;
 	}
-
-
+
 	/**
 	 * Returns the Color as a string in format RRRGGGBBB.
 	 * 
@@ -171,7 +211,7 @@ public float getGreenFloat() {
 	public float getBlueFloat() {
 		return ((float) this.b) / 255.0f;
 	}
-	
+
 	public float getAlphaFloat() {
 		return ((float) this.alpha) / 255.0f;
 	}
@@ -279,5 +319,5 @@ public static Color hsv2rgb(float hue, float saturation, float luminance) {
 		}
 		return null;
 	}
-
+	
 }

src/main/java/net/aoba/gui/tabs/components/ColorPickerComponent.java

@@ -17,7 +17,7 @@ public class ColorPickerComponent extends Component implements LeftMouseDownList
 
 	private String text;
 	private boolean isSliding = false;
-
+	private boolean collapsed = false;
 	private float hue = 0.0f;
 	private float saturation = 0.0f;
 	private float luminance = 0.0f;
@@ -42,6 +42,7 @@ public ColorPickerComponent(IHudElement parent, ColorSetting color) {
 
 		this.text = color.displayName;
 		this.color = color;
+		this.color.setOnUpdate((Color newColor) -> ensureGuiUpdated(newColor));
 
 		this.hue = color.getValue().hue;
 		this.saturation = color.getValue().saturation;
@@ -55,6 +56,12 @@ public ColorPickerComponent(IHudElement parent, ColorSetting color) {
 		Aoba.getInstance().eventManager.AddListener(LeftMouseUpListener.class, this);
 	}
 
+	public void ensureGuiUpdated(Color newColor) {
+		this.hue = newColor.hue;
+		this.saturation = newColor.saturation;
+		this.luminance = newColor.luminance;
+	}
+
 	public void setText(String text) {
 		this.text = text;
 	}
@@ -139,11 +146,11 @@ public void draw(DrawContext drawContext, float partialTicks, Color color) {
 		// Draw Outlines
 		renderUtils.drawOutline(matrixStack, actualX + 4, actualY + 29, actualWidth - 78, actualHeight - 33);
 		renderUtils.drawOutline(matrixStack, actualX + actualWidth - 70, actualY + 29, 30f, actualHeight - 33);
-		renderUtils.drawOutline(matrixStack, actualX + actualWidth - 36, actualY + 29, 30f, actualHeight - 33);
+		renderUtils.drawOutline(matrixStack, actualX + actualWidth - 35, actualY + 29, 30f, actualHeight - 33);
 
 		// Draw Indicators
 		renderUtils.drawCircle(matrixStack, actualX + 4 + (saturation * (actualWidth - 74)), actualY + 29 + ((1.0f - luminance) * (actualHeight - 33)), 3, new Color(255, 255, 255, 255));
 		renderUtils.drawOutlinedBox(matrixStack, actualX + actualWidth - 70, actualY + 29 + ((hue / 360.0f) * (actualHeight - 33)), 30, 3, new Color(255, 255, 255, 255));
-		renderUtils.drawOutlinedBox(matrixStack, actualX + actualWidth - 36, actualY + 29 + ((alpha / 360.0f) * (actualHeight - 33)), 30, 3, new Color(255, 255, 255, 255));
+		renderUtils.drawOutlinedBox(matrixStack, actualX + actualWidth - 36, actualY + 29 + (((255.0f - alpha) / 255.0f) * (actualHeight - 33)), 30, 3, new Color(255, 255, 255, 255));
 	}
 }