From f5a8d883d2d2e18c0c804b03a1e0f73277a1d993 Mon Sep 17 00:00:00 2001
From: Nguyen Viet Hung <viethungax@gmail.com>
Date: Sat, 7 Mar 2020 16:30:35 +1300
Subject: [PATCH] gx: add hex to rgb color

---
 vlib/gx/gx.v      |  9 +++++++++
 vlib/gx/gx_test.v | 13 +++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 vlib/gx/gx_test.v

diff --git a/vlib/gx/gx.v b/vlib/gx/gx.v
index aae1100fdc..a28532d902 100644
--- a/vlib/gx/gx.v
+++ b/vlib/gx/gx.v
@@ -93,6 +93,15 @@ pub fn rgb(r, g, b int) Color {
 	return res
 }
 
+pub fn hex(color int) Color {
+  res := Color {
+    r: (color >> 16) & 0xFF
+    g: (color >> 8) & 0xFF
+    b: color & 0xFF
+  }
+  return res
+}
+
 // fn text_width_char(c char) int {
 // return text_width(char2string(c))
 // // return C.text_width_char(c)
diff --git a/vlib/gx/gx_test.v b/vlib/gx/gx_test.v
new file mode 100644
index 0000000000..91c0cc7551
--- /dev/null
+++ b/vlib/gx/gx_test.v
@@ -0,0 +1,13 @@
+import gx
+
+fn test_hex() {
+  // valid colors
+  color_a := gx.hex(0x6c5ce7)
+  color_b := gx.rgb(108, 92, 231)
+  assert color_a.eq(color_b) == true
+
+  // doesn't give right value with short hex value
+  short_color := gx.hex(0xfff)
+  white_color := gx.rgb(255, 255, 255)
+  assert short_color.eq(white_color) == false
+}