Move CPDF_GraphState to CFX_GraphState

The FX layer is spying on its private data, so make the job
of ref-counting it live in FX as well, instead of up a layer
at pdfapi.

Pre-cursor to making this private and passing the graph
state itself everywhere.

Review-Url: https://codereview.chromium.org/2314223002

2 files changed, 105 insertions, 0 deletions

diff --git a/core/fxge/ge/cfx_graphstate.cpp b/core/fxge/ge/cfx_graphstate.cpp
new file mode 100644
index 0000000000..9a6e73810f
--- /dev/null
+++ b/core/fxge/ge/cfx_graphstate.cpp
@@ -0,0 +1,61 @@
+// 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 "core/fxge/include/cfx_graphstate.h"
+
+#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
+
+CFX_GraphState::CFX_GraphState() {}
+
+CFX_GraphState::CFX_GraphState(const CFX_GraphState& that)
+    : m_Ref(that.m_Ref) {}
+
+CFX_GraphState::~CFX_GraphState() {}
+
+void CFX_GraphState::Emplace() {
+  m_Ref.Emplace();
+}
+
+void CFX_GraphState::SetLineDash(CPDF_Array* pArray,
+                                 FX_FLOAT phase,
+                                 FX_FLOAT scale) {
+  CFX_GraphStateData* pData = m_Ref.GetPrivateCopy();
+  pData->m_DashPhase = phase * scale;
+  pData->SetDashCount(static_cast<int>(pArray->GetCount()));
+  for (size_t i = 0; i < pArray->GetCount(); i++)
+    pData->m_DashArray[i] = pArray->GetNumberAt(i) * scale;
+}
+
+FX_FLOAT CFX_GraphState::GetLineWidth() const {
+  return m_Ref.GetObject()->m_LineWidth;
+}
+
+void CFX_GraphState::SetLineWidth(FX_FLOAT width) {
+  m_Ref.GetPrivateCopy()->m_LineWidth = width;
+}
+
+CFX_GraphStateData::LineCap CFX_GraphState::GetLineCap() const {
+  return m_Ref.GetObject()->m_LineCap;
+}
+void CFX_GraphState::SetLineCap(CFX_GraphStateData::LineCap cap) {
+  m_Ref.GetPrivateCopy()->m_LineCap = cap;
+}
+
+CFX_GraphStateData::LineJoin CFX_GraphState::GetLineJoin() const {
+  return m_Ref.GetObject()->m_LineJoin;
+}
+
+void CFX_GraphState::SetLineJoin(CFX_GraphStateData::LineJoin join) {
+  m_Ref.GetPrivateCopy()->m_LineJoin = join;
+}
+
+FX_FLOAT CFX_GraphState::GetMiterLimit() const {
+  return m_Ref.GetObject()->m_MiterLimit;
+}
+
+void CFX_GraphState::SetMiterLimit(FX_FLOAT limit) {
+  m_Ref.GetPrivateCopy()->m_MiterLimit = limit;
+}
diff --git a/core/fxge/include/cfx_graphstate.h b/core/fxge/include/cfx_graphstate.h
new file mode 100644
index 0000000000..9470303ac1
--- /dev/null
+++ b/core/fxge/include/cfx_graphstate.h
@@ -0,0 +1,44 @@
+// 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
+
+#ifndef CORE_FXGE_INCLUDE_CFX_GRAPHSTATE_H_
+#define CORE_FXGE_INCLUDE_CFX_GRAPHSTATE_H_
+
+#include "core/fxcrt/include/cfx_count_ref.h"
+#include "core/fxge/include/cfx_graphstatedata.h"
+
+class CPDF_Array;
+
+class CFX_GraphState {
+ public:
+  CFX_GraphState();
+  CFX_GraphState(const CFX_GraphState& that);
+  ~CFX_GraphState();
+
+  void Emplace();
+
+  void SetLineDash(CPDF_Array* pArray, FX_FLOAT phase, FX_FLOAT scale);
+
+  FX_FLOAT GetLineWidth() const;
+  void SetLineWidth(FX_FLOAT width);
+
+  CFX_GraphStateData::LineCap GetLineCap() const;
+  void SetLineCap(CFX_GraphStateData::LineCap cap);
+
+  CFX_GraphStateData::LineJoin GetLineJoin() const;
+  void SetLineJoin(CFX_GraphStateData::LineJoin join);
+
+  FX_FLOAT GetMiterLimit() const;
+  void SetMiterLimit(FX_FLOAT limit);
+
+  // FIXME(tsepez): remove when all GraphStateData usage gone.
+  const CFX_GraphStateData* GetObject() const { return m_Ref.GetObject(); }
+
+ private:
+  CFX_CountRef<CFX_GraphStateData> m_Ref;
+};
+
+#endif  // CORE_FXGE_INCLUDE_CFX_GRAPHSTATE_H_