Apply patch from P. Fleury to improve jog shuttle speed handling.

[kdenlive] / src / colortools.h

diff --git a/src/colortools.h b/src/colortools.h
index 7ba179167b69927a2ac798c22a45bfb539e73f31..0441377c4e8df12bc923dc385ea81444ec772ee9 100644 (file)
--- a/src/colortools.h
+++ b/src/colortools.h
@@ -26,7 +26,7 @@ class ColorTools : public QObject
 public:
     ColorTools();
 
-    enum ColorsRGB { COL_R, COL_G, COL_B };
+    enum ColorsRGB { COL_R, COL_G, COL_B, COL_Luma };
 
     /**
       @brief Draws a UV plane with given Y value.
@@ -50,11 +50,21 @@ public:
       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.
+      scaling \in ]0,1] defines the maximum variance of the selected component; Chosing a value lower than 1
+      simulates the case that the curves can adjust only +- scaling*255. This mainly delivers a more constant look
+      when also using the Luma component for the curves display but might not represent the actual color change!
      */
-    QImage rgbCurvePlane(const QSize &size, const ColorTools::ColorsRGB &color);
+    static QImage rgbCurvePlane(const QSize &size, const ColorTools::ColorsRGB &color, float scaling = 1);
+    /**
+      @brief Draws a YPbPr plane with Pb on the x axis and Pr on the y axis.
+      Y is the Y value to use.
+      scaling defines how far to zoom in (or out). Lower value = zoom in.
+      See also: http://de.wikipedia.org/wiki/YPbPr-Farbmodell and http://www.poynton.com/ColorFAQ.html
+     */
+    QImage yPbPrColorWheel(const QSize &size, const unsigned char &Y, const float &scaling, const bool &circleOnly);
 
 signals:
-    void signalWheelCalculationFinished();
+    void signalYuvWheelCalculationFinished();
 };
 
 #endif // COLORTOOLS_H