From 8b293119aba6432a80f73a608557d5531de92c52 Mon Sep 17 00:00:00 2001
From: Tibor Nagy <xnagytibor@gmail.com>
Date: Sat, 26 Sep 2020 19:31:27 +0200
Subject: [PATCH] LibGUI: Update color widgets when has_alpha is toggled in
 ColorPicker Fixing a bug where the alpha spinbox wasn't immediately disabled
 when color_has_alpha_channel was set to false.

---
 Libraries/LibGUI/ColorPicker.cpp | 9 +++++++++
 Libraries/LibGUI/ColorPicker.h   | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Libraries/LibGUI/ColorPicker.cpp b/Libraries/LibGUI/ColorPicker.cpp
index ff471e1131..ce4db5e5df 100644
--- a/Libraries/LibGUI/ColorPicker.cpp
+++ b/Libraries/LibGUI/ColorPicker.cpp
@@ -161,6 +161,15 @@ ColorPicker::~ColorPicker()
 {
 }
 
+void ColorPicker::set_color_has_alpha_channel(bool has_alpha)
+{
+    if (m_color_has_alpha_channel == has_alpha)
+        return;
+
+    m_color_has_alpha_channel = has_alpha;
+    update_color_widgets();
+}
+
 void ColorPicker::build_ui()
 {
     auto& root_container = set_main_widget<Widget>();
diff --git a/Libraries/LibGUI/ColorPicker.h b/Libraries/LibGUI/ColorPicker.h
index 0d0e2334c4..320614805f 100644
--- a/Libraries/LibGUI/ColorPicker.h
+++ b/Libraries/LibGUI/ColorPicker.h
@@ -42,7 +42,7 @@ public:
     virtual ~ColorPicker() override;
 
     bool color_has_alpha_channel() const { return m_color_has_alpha_channel; }
-    void set_color_has_alpha_channel(bool has_alpha) { m_color_has_alpha_channel = has_alpha; }
+    void set_color_has_alpha_channel(bool);
     Color color() const { return m_color; }
 
 private: