Move xfa/include/fxgraphics/fx_graphics.h to xfa/fxgraphics.

xfa/fxgraphics/cfx_shading.cpp

+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "xfa/fxgraphics/cfx_shading.h"
+
+CFX_Shading::CFX_Shading(CFX_Shading_Type type) : m_type(type) {}
+
+CFX_Shading::~CFX_Shading() {}
+
+FX_ERR CFX_Shading::CreateAxial(const CFX_PointF& beginPoint,
+                                const CFX_PointF& endPoint,
+                                FX_BOOL isExtendedBegin,
+                                FX_BOOL isExtendedEnd,
+                                const FX_ARGB beginArgb,
+                                const FX_ARGB endArgb) {
+  if (m_type != FX_SHADING_Axial)
+    return FX_ERR_Property_Invalid;
+
+  m_beginPoint = beginPoint;
+  m_endPoint = endPoint;
+  m_isExtendedBegin = isExtendedBegin;
+  m_isExtendedEnd = isExtendedEnd;
+  m_beginArgb = beginArgb;
+  m_endArgb = endArgb;
+  return InitArgbArray();
+}
+
+FX_ERR CFX_Shading::CreateRadial(const CFX_PointF& beginPoint,
+                                 const CFX_PointF& endPoint,
+                                 const FX_FLOAT beginRadius,
+                                 const FX_FLOAT endRadius,
+                                 FX_BOOL isExtendedBegin,
+                                 FX_BOOL isExtendedEnd,
+                                 const FX_ARGB beginArgb,
+                                 const FX_ARGB endArgb) {
+  if (m_type != FX_SHADING_Radial)
+    return FX_ERR_Property_Invalid;
+
+  m_beginPoint = beginPoint;
+  m_endPoint = endPoint;
+  m_beginRadius = beginRadius;
+  m_endRadius = endRadius;
+  m_isExtendedBegin = isExtendedBegin;
+  m_isExtendedEnd = isExtendedEnd;
+  m_beginArgb = beginArgb;
+  m_endArgb = endArgb;
+  return InitArgbArray();
+}
+
+FX_ERR CFX_Shading::InitArgbArray() {
+  int32_t a1, r1, g1, b1;
+  ArgbDecode(m_beginArgb, a1, r1, g1, b1);
+  int32_t a2, r2, g2, b2;
+  ArgbDecode(m_endArgb, a2, r2, g2, b2);
+  FX_FLOAT f = (FX_FLOAT)(FX_SHADING_Steps - 1);
+  FX_FLOAT aScale = (FX_FLOAT)(1.0 * (a2 - a1) / f);
+  FX_FLOAT rScale = (FX_FLOAT)(1.0 * (r2 - r1) / f);
+  FX_FLOAT gScale = (FX_FLOAT)(1.0 * (g2 - g1) / f);
+  FX_FLOAT bScale = (FX_FLOAT)(1.0 * (b2 - b1) / f);
+  int32_t a3, r3, g3, b3;
+  for (int32_t i = 0; i < FX_SHADING_Steps; i++) {
+    a3 = (int32_t)(i * aScale);
+    r3 = (int32_t)(i * rScale);
+    g3 = (int32_t)(i * gScale);
+    b3 = (int32_t)(i * bScale);
+    m_argbArray[i] =
+        FXARGB_TODIB(FXARGB_MAKE((a1 + a3), (r1 + r3), (g1 + g3), (b1 + b3)));
+  }
+  return FX_ERR_Succeeded;
+}