Register QColorSpace as a QtGui metatype

Helps pass it through QVariant, and needed for QML support.

Change-Id: Id161ff9b8f81ad55a7ee7a7c4c614bdf74bca4a1
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

src/corelib/kernel/qmetatype.cpp

@@ -252,6 +252,7 @@ struct DefinedTypesFilter {
     \value QPolygon QPolygon
     \value QPolygonF QPolygonF
     \value QColor QColor
+    \value QColorSpace QColorSpace
     \value QSizeF QSizeF
     \value QRectF QRectF
     \value QLine QLine

src/corelib/kernel/qmetatype.h

@@ -175,6 +175,7 @@ inline Q_DECL_CONSTEXPR int qMetaTypeId();
     F(QVector4D, 84, QVector4D) \
     F(QQuaternion, 85, QQuaternion) \
     F(QPolygonF, 86, QPolygonF) \
+    F(QColorSpace, 87, QColorSpace) \
 
 
 #define QT_FOR_EACH_STATIC_WIDGETS_CLASS(F)\
@@ -437,7 +438,7 @@ public:
         FirstCoreType = Bool,
         LastCoreType = QCborMap,
         FirstGuiType = QFont,
-        LastGuiType = QPolygonF,
+        LastGuiType = QColorSpace,
         FirstWidgetsType = QSizePolicy,
         LastWidgetsType = QSizePolicy,
         HighestInternalId = LastWidgetsType,
@@ -472,12 +473,12 @@ public:
         QIcon = 69, QImage = 70, QPolygon = 71, QRegion = 72, QBitmap = 73,
         QCursor = 74, QKeySequence = 75, QPen = 76, QTextLength = 77, QTextFormat = 78,
         QMatrix = 79, QTransform = 80, QMatrix4x4 = 81, QVector2D = 82,
-        QVector3D = 83, QVector4D = 84, QQuaternion = 85, QPolygonF = 86,
+        QVector3D = 83, QVector4D = 84, QQuaternion = 85, QPolygonF = 86, QColorSpace = 87,
 
         // Widget types
         QSizePolicy = 121,
         LastCoreType = QCborMap,
-        LastGuiType = QPolygonF,
+        LastGuiType = QColorSpace,
         User = 1024
     };
 #endif

src/gui/kernel/qguivariant.cpp

@@ -41,6 +41,7 @@
 #include "qbitmap.h"
 #include "qbrush.h"
 #include "qcolor.h"
+#include "qcolorspace.h"
 #include "qcursor.h"
 #include "qfont.h"
 #include "qimage.h"

src/gui/painting/qcolorspace.cpp

@@ -744,6 +744,15 @@ QColorTransform QColorSpace::transformationToColorSpace(const QColorSpace &color
     return d_ptr->transformationToColorSpace(colorspace.d_ptr);
 }
 
+/*!
+    Returns the color space as a QVariant.
+    \since 5.15
+*/
+QColorSpace::operator QVariant() const
+{
+    return QVariant(QMetaType::QColorSpace, this);
+}
+
 /*****************************************************************************
   QColorSpace stream functions
  *****************************************************************************/

src/gui/painting/qcolorspace.h

@@ -44,6 +44,7 @@
 #include <QtGui/qcolortransform.h>
 #include <QtCore/qobjectdefs.h>
 #include <QtCore/qshareddata.h>
+#include <QtCore/qvariant.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -125,6 +126,7 @@ public:
 
     QColorTransform transformationToColorSpace(const QColorSpace &colorspace) const;
 
+    operator QVariant() const;
 
 private:
     Q_DECLARE_PRIVATE(QColorSpace)