#include <QImage>
+
+
class ColorTools : public QObject
{
Q_OBJECT
public:
ColorTools();
+ enum ColorsRGB { COL_R, COL_G, COL_B };
+
/**
@brief Draws a UV plane with given Y value.
scaling defines how far to zoom in (or out). Lower value = zoom in.
If not the full rect should be filled, set circleOnly to true.
See also: http://en.wikipedia.org/wiki/YUV and http://de.wikipedia.org/wiki/Vektorskop
*/
- QImage yuvColorWheel(const QSize& size, const unsigned char Y, const float scaling, const bool modifiedVersion, const bool circleOnly);
+ QImage yuvColorWheel(const QSize& size, const unsigned char &Y, const float &scaling, const bool &modifiedVersion, const bool &circleOnly);
+ /**
+ @brief Draws a UV plane with given UV angle (ratio u:v stays constant)
+ scaling defines how far to zoom in (or out). Lower value = zoom in.
+ angle defines the angle in a default U/V plane. A vertical plane, on which Y goes from 0 to 1,
+ is then laid through the UV plane, with the defined angle.
+ @see yuvColorWheel()
+ */
+ QImage yuvVerticalPlane(const QSize &size, const float &angle, const float &scaling);
+ /**
+ @brief Draws a RGB plane with two values on one axis and one on the other.
+ This is e.g. useful as background for a curves dialog. On the line from bottom left to top right
+ are neutral colors. The colors on the y axis show what the neutral color will look like when modifying the curve.
+ color defines the color to modify on the y axis. The other two components will be increased
+ in equal terms (linear as well) on the x axis.
+ */
+ QImage rgbCurvePlane(const QSize &size, const ColorTools::ColorsRGB &color);
signals:
void signalWheelCalculationFinished();