X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fcolortools.h;h=c55507cb59a972baabdbe1081d86b0647abd2ba2;hb=c3302003093710ee247ad84c0fe2ef3c579d417f;hp=6a4ec19d3e12c658d39c0162fdd3932c8b36cc18;hpb=2f0bbf264645a589fad0cb4b7d686699a00ed00f;p=kdenlive

diff --git a/src/colortools.h b/src/colortools.h
index 6a4ec19d..c55507cb 100644
--- a/src/colortools.h
+++ b/src/colortools.h
@@ -17,6 +17,7 @@
 
 #include <QImage>
 
+
 class ColorTools : public QObject
 {
     Q_OBJECT
@@ -24,6 +25,10 @@ class ColorTools : public QObject
 public:
     ColorTools();
 
+    enum ColorsRGB { COL_R, COL_G, COL_B, COL_A, COL_Luma, COL_RGB };
+
+    enum ComponentsHSV { COM_H, COM_S, COM_V };
+
     /**
       @brief Draws a UV plane with given Y value.
       scaling defines how far to zoom in (or out). Lower value = zoom in.
@@ -31,10 +36,55 @@ public:
       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.
+      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!
+     */
+    static QImage rgbCurvePlane(const QSize &size, const ColorTools::ColorsRGB &color, float scaling = 1, const QRgb &background = QRgb());
+    /**
+      @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);
+    /**
+     @brief Draws a HSV plane with Hue on the x axis and hue difference on the y axis.
+     This is for the Bézier Curves widget which allows to change the hue (y) of a certain hue.
+     MIN/MAX give the minimum/maximum hue difference, e.g. -128,+128.
+     For the value ranges see:
+     http://doc.qt.nokia.com/latest/qcolor.html#the-hsv-color-model
+     */
+    static QImage hsvHueShiftPlane(const QSize &size, const uint &S, const uint &V, const int &MIN, const int &MAX);
+
+    /**
+      Basic HSV plane with two components varying on the x and y axis.
+      If both components are the same, then the y axis will be considered.
+      MIN/MAX give the minimum/maximum saturation, usually 0..255.
+      Missing colour components will be taken from baseColor.
+      For shear == true, the image will be sheared such that the x axis goes through (0,0) and (1,1). offsetY can additionally
+      shift the whole x axis vertically.
+      */
+    static QImage hsvCurvePlane(const QSize &size, const QColor &baseColor,
+                                const ComponentsHSV &xVariant, const ComponentsHSV &yVariant, const bool &shear = false, const float offsetY = 0);
 
 signals:
-    void signalWheelCalculationFinished();
+    void signalYuvWheelCalculationFinished();
 };
 
 #endif // COLORTOOLS_H