GH-1197 finish color stuff

1 files changed, 35 insertions, 0 deletions

diff --git a/application/ColorCache.cpp b/application/ColorCache.cpp
new file mode 100644
index 00000000..e216b597
--- /dev/null
+++ b/application/ColorCache.cpp
@@ -0,0 +1,35 @@
+#include "ColorCache.h"
+
+
+/**
+ * Blend the color with the front color, adapting to the back color
+ */
+QColor ColorCache::blend(QColor color)
+{
+	if (Rainbow::luma(m_front) > Rainbow::luma(m_back))
+	{
+		// for dark color schemes, produce a fitting color first
+		color = Rainbow::tint(m_front, color, 0.5);
+	}
+	// adapt contrast
+	return Rainbow::mix(m_front, color, m_bias);
+}
+
+/**
+ * Blend the color with the back color
+ */
+QColor ColorCache::blendBackground(QColor color)
+{
+	// adapt contrast
+	return Rainbow::mix(m_back, color, m_bias);
+}
+
+void ColorCache::recolorAll()
+{
+	auto iter = m_colors.begin();
+	while(iter != m_colors.end())
+	{
+		iter->front = blend(iter->original);
+		iter->back = blendBackground(iter->original);
+	}
+}