1 files changed, 93 insertions, 0 deletions
diff --git a/libs/dgl/src/Color.cpp b/libs/dgl/src/Color.cpp
new file mode 100644
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+++ b/libs/dgl/src/Color.cpp
@@ -0,0 +1,93 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any purpose with
+ * or without fee is hereby granted, provided that the above copyright notice and this
+ * permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+ * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "../Color.hpp"
+
+#include "nanovg/nanovg.h"
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+Color::Color() noexcept
+    : red(1.0f), green(1.0f), blue(1.0f), alpha(1.0f) {}
+
+Color::Color(const int r, const int g, const int b, const int a) noexcept
+    : red(static_cast<float>(r)/255.0f), green(static_cast<float>(g)/255.0f), blue(static_cast<float>(b)/255.0f), alpha(static_cast<float>(a)/255.0f) {}
+
+Color::Color(const float r, const float g, const float b, const float a) noexcept
+    : red(r), green(g), blue(b), alpha(a) {}
+
+Color::Color(const Color& color) noexcept
+    : red(color.red), green(color.green), blue(color.blue), alpha(color.alpha) {}
+
+Color::Color(const Color& color1, const Color& color2, const float u) noexcept
+    : red(color1.red), green(color1.green), blue(color1.blue), alpha(color1.alpha)
+{
+    interpolate(color2, u);
+}
+
+void Color::interpolate(const Color& other, const float u) noexcept
+{
+    const float u2 = (u < 0.0f) ? 0.0f : ((u > 1.0f) ? 1.0f : u);
+    const float oneMinusU = 1.0f - u;
+
+    red   = red   * oneMinusU + other.red   * u2;
+    green = green * oneMinusU + other.green * u2;
+    blue  = blue  * oneMinusU + other.blue  * u2;
+    alpha = alpha * oneMinusU + other.alpha * u2;
+}
+
+Color Color::HSL(const float hue, const float saturation, const float lightness, const int alpha)
+{
+    return nvgHSLA(hue, saturation, lightness, alpha);
+}
+
+Color::Color(const NVGcolor& c) noexcept
+    : red(c.r), green(c.g), blue(c.b), alpha(c.a) {}
+
+Color::operator NVGcolor() const noexcept
+{
+    NVGcolor nc;
+    nc.r = red;
+    nc.g = green;
+    nc.b = blue;
+    nc.a = alpha;
+    return nc;
+}
+
+Color& Color::operator=(const Color& color) noexcept
+{
+    red   = color.red;
+    green = color.green;
+    blue  = color.blue;
+    alpha = color.alpha;
+    return *this;
+}
+
+bool Color::operator==(const Color& color) noexcept
+{
+    return (red == color.red && green == color.green && blue == color.blue && alpha == color.alpha);
+}
+
+bool Color::operator!=(const Color& color) noexcept
+{
+    return (red != color.red || green != color.green || blue != color.blue || alpha != color.alpha);
+}
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL