slideshow: Rename getVertices into getVertex, to match its only usage

slideshow/source/engine/OGLTrans/generic/OGLTrans_TransitionImpl.cxx

@@ -818,13 +818,13 @@ std::shared_ptr<OGLTransitionImpl> makeHelix( sal_uInt16 nRows )
 
         Tile.pushTriangle(glm::vec2( 1.0 , iPDn ) , glm::vec2( 1.0 , iDn ) , glm::vec2( 0.0 , iPDn ));
 
-        Tile.Operations.push_back( makeSRotate( glm::vec3( 0 , 1 , 0 ) , ( Tile.getVertices()[1] + Tile.getVertices()[3] )/2.0f , 180 ,
+        Tile.Operations.push_back( makeSRotate( glm::vec3( 0 , 1 , 0 ) , ( Tile.getVertex(1) + Tile.getVertex(3) )/2.0f , 180 ,
                                                 true, std::min(std::max(static_cast<double>(i - nRows/2.0)*invN/2.0,0.0),1.0),
                                                 std::min(std::max(static_cast<double>(i + nRows/2.0)*invN/2.0,0.0),1.0) ) );
 
         aLeavingSlide.push_back(Tile);
 
-        Tile.Operations.push_back( makeSRotate( glm::vec3( 0 , 1 , 0 ) , ( Tile.getVertices()[1] + Tile.getVertices()[3] )/2.0f , -180 , false,0.0,1.0) );
+        Tile.Operations.push_back( makeSRotate( glm::vec3( 0 , 1 , 0 ) , ( Tile.getVertex(1) + Tile.getVertex(3) )/2.0f , -180 , false,0.0,1.0) );
 
         aEnteringSlide.push_back(Tile);
 
@@ -867,10 +867,10 @@ std::shared_ptr<OGLTransitionImpl> makeNByMTileFlip( sal_uInt16 n, sal_uInt16 m
             aTile.pushTriangle(x21, x11, x12);
             aTile.pushTriangle(x22, x21, x12);
 
-            aTile.Operations.push_back(makeSRotate( glm::vec3(0 , 1, 0), (aTile.getVertices()[1] + aTile.getVertices()[3]) / 2.0f, 180 , true, x11.x * x11.y / 2.0f , ((x22.x * x22.y) + 1.0f) / 2.0f));
+            aTile.Operations.push_back(makeSRotate( glm::vec3(0 , 1, 0), (aTile.getVertex(1) + aTile.getVertex(3)) / 2.0f, 180 , true, x11.x * x11.y / 2.0f , ((x22.x * x22.y) + 1.0f) / 2.0f));
             aLeavingSlide.push_back(aTile);
 
-            aTile.Operations.push_back(makeSRotate( glm::vec3(0 , 1, 0), (aTile.getVertices()[1] + aTile.getVertices()[3]) / 2.0f, -180, false, x11.x * x11.y / 2.0f , ((x22.x * x22.y) + 1.0f) / 2.0f));
+            aTile.Operations.push_back(makeSRotate( glm::vec3(0 , 1, 0), (aTile.getVertex(1) + aTile.getVertex(3)) / 2.0f, -180, false, x11.x * x11.y / 2.0f , ((x22.x * x22.y) + 1.0f) / 2.0f));
             aEnteringSlide.push_back(aTile);
         }
     }
@@ -1901,7 +1901,7 @@ std::shared_ptr<OGLTransitionImpl> makeGlitter()
             Primitive aHexagon;
             createHexagon(aHexagon, x, y, NX, NY);
 
-            glm::vec3 aCenter = aHexagon.getVertices()[2];
+            glm::vec3 aCenter = aHexagon.getVertex(2);
 
             float fRandom = comphelper::rng::uniform_real_distribution(-0.25, std::nextafter(0.2, DBL_MAX));
 

slideshow/source/engine/OGLTrans/generic/OGLTrans_TransitionImpl.hxx

@@ -311,7 +311,7 @@ public:
         @return
         the list of vertices
     */
-    const std::vector<glm::vec3>& getVertices() const {return Vertices;}
+    const glm::vec3& getVertex(int n) const {return Vertices[n];}
 
     /** list of Operations to be performed on this primitive.These operations will be called in the order they were pushed back in. In OpenGL this effectively uses the operations in the opposite order they were pushed back.