convert GradientType to scoped enum

Change-Id: Icef1d8d38481022104a957ac9deac1c03dc2d6fb
Reviewed-on: https://gerrit.libreoffice.org/22632Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

canvas/source/cairo/cairo_canvashelper.cxx

@@ -709,7 +709,7 @@ namespace cairocanvas
 
         switch( aValues.meType )
         {
-            case ::canvas::ParametricPolyPolygon::GRADIENT_LINEAR:
+            case ::canvas::ParametricPolyPolygon::GradientType::Linear:
                 x0 = 0;
                 y0 = 0;
                 x1 = 1;
@@ -718,7 +718,7 @@ namespace cairocanvas
                 addColorStops( pPattern, aValues.maColors, aValues.maStops );
                 break;
 
-            case ::canvas::ParametricPolyPolygon::GRADIENT_ELLIPTICAL:
+            case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
                 cx = 0;
                 cy = 0;
                 r0 = 0;
@@ -828,7 +828,7 @@ namespace cairocanvas
                             cairo_matrix_init( &aTextureMatrix,
                                                aTransform.m00, aTransform.m10, aTransform.m01,
                                                aTransform.m11, aTransform.m02, aTransform.m12);
-                            if( pPolyImpl->getValues().meType == canvas::ParametricPolyPolygon::GRADIENT_RECTANGULAR )
+                            if( pPolyImpl->getValues().meType == canvas::ParametricPolyPolygon::GradientType::Rectangular )
                             {
                                 // no general path gradient yet in cairo; emulate then
                                 cairo_save( pCairo );

canvas/source/directx/dx_canvashelper_texturefill.cxx

@@ -430,7 +430,7 @@ namespace dxcanvas
         {
             switch( rValues.meType )
             {
-                case ::canvas::ParametricPolyPolygon::GRADIENT_LINEAR:
+                case ::canvas::ParametricPolyPolygon::GradientType::Linear:
                     fillLinearGradient( rGraphics,
                                         rValues,
                                         rColors,
@@ -439,9 +439,9 @@ namespace dxcanvas
                                         texture  );
                     break;
 
-                case ::canvas::ParametricPolyPolygon::GRADIENT_ELLIPTICAL:
+                case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
                     // FALLTHROUGH intended
-                case ::canvas::ParametricPolyPolygon::GRADIENT_RECTANGULAR:
+                case ::canvas::ParametricPolyPolygon::GradientType::Rectangular:
                     fillPolygonalGradient( rValues,
                                            rColors,
                                            rStops,

canvas/source/opengl/ogl_canvashelper.cxx

@@ -197,19 +197,19 @@ namespace oglcanvas
 
             switch( rValues.meType )
             {
-                case ::canvas::ParametricPolyPolygon::GRADIENT_LINEAR:
+                case ::canvas::ParametricPolyPolygon::GradientType::Linear:
                     rHelper.getDeviceHelper()->useLinearGradientShader(pColors,
                                                                        rValues.maStops,
                                                                        aTextureTransform);
                     break;
 
-                case ::canvas::ParametricPolyPolygon::GRADIENT_ELLIPTICAL:
+                case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
                     rHelper.getDeviceHelper()->useRadialGradientShader(pColors,
                                                                        rValues.maStops,
                                                                        aTextureTransform);
                     break;
 
-                case ::canvas::ParametricPolyPolygon::GRADIENT_RECTANGULAR:
+                case ::canvas::ParametricPolyPolygon::GradientType::Rectangular:
                     rHelper.getDeviceHelper()->useRectangularGradientShader(pColors,
                                                                             rValues.maStops,
                                                                             aTextureTransform);

canvas/source/tools/parametricpolypolygon.cxx

@@ -126,7 +126,7 @@ namespace canvas
     {
         // TODO(P2): hold gradient brush statically, and only setup
         // the colors
-        return new ParametricPolyPolygon( rDevice, GRADIENT_LINEAR, colors, stops );
+        return new ParametricPolyPolygon( rDevice, GradientType::Linear, colors, stops );
     }
 
     ParametricPolyPolygon* ParametricPolyPolygon::createEllipticalGradient(
@@ -141,7 +141,7 @@ namespace canvas
             rDevice,
             ::basegfx::tools::createPolygonFromCircle(
                 ::basegfx::B2DPoint(0,0), 1 ),
-            GRADIENT_ELLIPTICAL,
+            GradientType::Elliptical,
             colors, stops, fAspectRatio );
     }
 
@@ -156,7 +156,7 @@ namespace canvas
             rDevice,
             ::basegfx::tools::createPolygonFromRect(
                 ::basegfx::B2DRectangle( -1, -1, 1, 1 ) ),
-            GRADIENT_RECTANGULAR,
+            GradientType::Rectangular,
             colors, stops, fAspectRatio );
     }
 

canvas/source/vcl/canvashelper_texturefill.cxx

@@ -494,7 +494,7 @@ namespace vclcanvas
         {
             switch( rValues.meType )
             {
-                case ::canvas::ParametricPolyPolygon::GRADIENT_LINEAR:
+                case ::canvas::ParametricPolyPolygon::GradientType::Linear:
                     fillLinearGradient( rOutDev,
                                         rTextureTransform,
                                         rBounds,
@@ -503,9 +503,9 @@ namespace vclcanvas
                                         rColors );
                     break;
 
-                case ::canvas::ParametricPolyPolygon::GRADIENT_ELLIPTICAL:
+                case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
                     // FALLTHROUGH intended
-                case ::canvas::ParametricPolyPolygon::GRADIENT_RECTANGULAR:
+                case ::canvas::ParametricPolyPolygon::GradientType::Rectangular:
                     fillPolygonalGradient( rOutDev,
                                            rTextureTransform,
                                            rBounds,

include/canvas/parametricpolypolygon.hxx

@@ -47,11 +47,11 @@ namespace canvas
                                   public ParametricPolyPolygon_Base
     {
     public:
-        enum GradientType
+        enum class GradientType
         {
-            GRADIENT_LINEAR,
-            GRADIENT_ELLIPTICAL,
-            GRADIENT_RECTANGULAR
+            Linear,
+            Elliptical,
+            Rectangular
         };
 
         /** Structure of defining values for the ParametricPolyPolygon