First commit

src/tools.cpp

@@ -0,0 +1,48 @@
+#include "tools.h"
+
+#define BRIGHTNESS_THRESHOLD 170
+#define WHITECOLOR 240
+#define BLACKCOLOR 15
+
+Tools::Tools()
+{
+
+}
+
+QColor Tools::getRandomColor()
+{
+    srand(time(0));
+    int r = arc4random() % 255;
+    int g = arc4random() % 255;
+    int b = arc4random() % 255;
+    return QColor(r, g, b);
+}
+
+QColor Tools::getForegroundColor(QColor background)
+{
+    int avg = background.red();
+    avg += background.green();
+    avg += background.blue();
+    avg = avg / 3;
+
+    int avg2 = background.red();
+    avg2 += background.green();
+    avg2 = avg2 / 2;
+
+    int avg3 = background.red();
+    avg3 += background.blue();
+    avg3 = avg3 / 2;
+
+    int avg4 = background.green();
+    avg4 += background.blue();
+    avg4 = avg4 / 2;
+
+    if (avg < BRIGHTNESS_THRESHOLD && avg2 < BRIGHTNESS_THRESHOLD && avg3 < BRIGHTNESS_THRESHOLD && avg4 < BRIGHTNESS_THRESHOLD)
+    {
+        return QColor(WHITECOLOR, WHITECOLOR, WHITECOLOR);
+    }
+    else
+    {
+        return QColor(BLACKCOLOR, BLACKCOLOR, BLACKCOLOR);
+    }
+}