Added a constructor to ColourGradient that takes Point arguments

modules/juce_graphics/colour/juce_ColourGradient.cpp

@@ -43,6 +43,17 @@ ColourGradient::ColourGradient (Colour colour1, const float x1, const float y1,
     colours.add (ColourPoint (1.0, colour2));
 }
 
+ColourGradient::ColourGradient (Colour colour1, Point<float> p1,
+                                Colour colour2, Point<float> p2,
+                                const bool radial)
+    : point1 (p1),
+      point2 (p2),
+      isRadial (radial)
+{
+    colours.add (ColourPoint (0.0, colour1));
+    colours.add (ColourPoint (1.0, colour2));
+}
+
 ColourGradient::~ColourGradient()
 {
 }
@@ -141,12 +152,12 @@ Colour ColourGradient::getColourAtPosition (const double position) const noexcep
     while (position < colours.getReference(i).position)
         --i;
 
-    const ColourPoint& p1 = colours.getReference (i);
+    auto& p1 = colours.getReference (i);
 
     if (i >= colours.size() - 1)
         return p1.colour;
 
-    const ColourPoint& p2 = colours.getReference (i + 1);
+    auto& p2 = colours.getReference (i + 1);
 
     return p1.colour.interpolatedWith (p2.colour, (float) ((position - p1.position) / (p2.position - p1.position)));
 }

modules/juce_graphics/colour/juce_ColourGradient.h

@@ -56,6 +56,27 @@ public:
                     Colour colour2, float x2, float y2,
                     bool isRadial);
 
+    /** Creates a gradient object.
+
+        point1 is the location to draw with colour1. Likewise point2 is where
+        colour2 should be. In between them there's a gradient.
+
+        If isRadial is true, the colours form a circular gradient with point1 at
+        its centre.
+
+        The alpha transparencies of the colours are used, so note that
+        if you blend from transparent to a solid colour, the RGB of the transparent
+        colour will become visible in parts of the gradient. e.g. blending
+        from Colour::transparentBlack to Colours::white will produce a
+        muddy grey colour midway, but Colour::transparentWhite to Colours::white
+        will be white all the way across.
+
+        @see ColourGradient
+    */
+    ColourGradient (Colour colour1, Point<float> point1,
+                    Colour colour2, Point<float> point2,
+                    bool isRadial);
+
     /** Creates an uninitialised gradient.
 
         If you use this constructor instead of the other one, be sure to set all the