Move CXFA_ImageRenderer to own file

This CL Splits CL_ImageRenderer out of CXFA_FFWidget and moves to a
separate file. Methods in CXFA_FFWidget are shuffled around to put the
global methods at the top of the file and static methods in the
anonymous namespace.

Change-Id: I9887a5c9bf9fda63deead7ff785dc4ef3d7e15c8
Reviewed-on: https://pdfium-review.googlesource.com/23031
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/xfa/fxfa/cxfa_imagerenderer.h b/xfa/fxfa/cxfa_imagerenderer.h
new file mode 100644
index 0000000000..ca53bf639e
--- /dev/null
+++ b/xfa/fxfa/cxfa_imagerenderer.h
@@ -0,0 +1,61 @@
+// Copyright 2018 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
+
+#ifndef XFA_FXFA_CXFA_IMAGERENDERER_H_
+#define XFA_FXFA_CXFA_IMAGERENDERER_H_
+
+#include <memory>
+
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxcrt/retain_ptr.h"
+#include "core/fxge/fx_dib.h"
+
+class CFX_RenderDevice;
+class CFX_DIBSource;
+class CFX_DIBitmap;
+class CFX_ImageTransformer;
+class CFX_ImageRenderer;
+
+class CXFA_ImageRenderer {
+ public:
+  CXFA_ImageRenderer();
+  ~CXFA_ImageRenderer();
+
+  bool Start(CFX_RenderDevice* pDevice,
+             const RetainPtr<CFX_DIBSource>& pDIBSource,
+             FX_ARGB bitmap_argb,
+             int bitmap_alpha,
+             const CFX_Matrix* pImage2Device,
+             uint32_t flags,
+             int blendType = FXDIB_BLEND_NORMAL);
+  bool Continue();
+
+ protected:
+  bool StartDIBSource();
+  void CompositeDIBitmap(const RetainPtr<CFX_DIBitmap>& pDIBitmap,
+                         int left,
+                         int top,
+                         FX_ARGB mask_argb,
+                         int bitmap_alpha,
+                         int blend_mode,
+                         int iTransparency);
+
+  CFX_RenderDevice* m_pDevice;
+  int m_Status = 0;
+  CFX_Matrix m_ImageMatrix;
+  RetainPtr<CFX_DIBSource> m_pDIBSource;
+  RetainPtr<CFX_DIBitmap> m_pCloneConvert;
+  int m_BitmapAlpha = 255;
+  FX_ARGB m_FillArgb = 0;
+  uint32_t m_Flags = 0;
+  std::unique_ptr<CFX_ImageTransformer> m_pTransformer;
+  std::unique_ptr<CFX_ImageRenderer> m_DeviceHandle;
+  int32_t m_BlendType = FXDIB_BLEND_NORMAL;
+  bool m_Result = true;
+  bool m_bPrint = false;
+};
+
+#endif  // XFA_FXFA_CXFA_IMAGERENDERER_H_