Add color space model, making gray color spaces explicit

This also adds image conversion of both format and color space, which
will also  be required later for conversions to CMYK formats and color
spaces.

Change-Id: I578c0a010ffcdb4df4cf9080c0621fac8bc342bf
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/gui/painting/qcolorspace.h b/src/gui/painting/qcolorspace.h
index 848bc0898e..cbb1435c56 100644
--- a/src/gui/painting/qcolorspace.h
+++ b/src/gui/painting/qcolorspace.h
@@ -50,9 +50,17 @@ public:
         ElementListProcessing,
     };
     Q_ENUM(TransformModel)
+    enum class ColorModel : uint8_t {
+        Undefined = 0,
+        Rgb = 1,
+        Gray = 2,
+    };
+    Q_ENUM(ColorModel)
 
     QColorSpace() noexcept = default;
     QColorSpace(NamedColorSpace namedColorSpace);
+    QColorSpace(const QPointF &whitePoint, TransferFunction transferFunction, float gamma = 0.0f);
+    QColorSpace(const QPointF &whitePoint, const QList<uint16_t> &transferFunctionTable);
     QColorSpace(Primaries primaries, TransferFunction transferFunction, float gamma = 0.0f);
     QColorSpace(Primaries primaries, float gamma);
     QColorSpace(Primaries primaries, const QList<uint16_t> &transferFunctionTable);
@@ -104,8 +112,11 @@ public:
     void setPrimaries(Primaries primariesId);
     void setPrimaries(const QPointF &whitePoint, const QPointF &redPoint,
                       const QPointF &greenPoint, const QPointF &bluePoint);
+    void setWhitePoint(const QPointF &whitePoint);
+    QPointF whitePoint() const;
 
     TransformModel transformModel() const noexcept;
+    ColorModel colorModel() const noexcept;
     void detach();
     bool isValid() const noexcept;
     bool isValidTarget() const noexcept;