Rebuild CFDE_TextEditEngine.

This CL rebuilds the text edit engine in a simpler fashion. Instead of
depending on multiple pages, paragraphs and buffer fields there is a
single text edit engine which contains a gap buffer.

This makes the code easier to understand and follow.

Change-Id: I10fe85603fa9ed15a647eaac2d931f113cd0c7b0
Reviewed-on: https://pdfium-review.googlesource.com/11990
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>

1 files changed, 0 insertions, 94 deletions

diff --git a/xfa/fde/cfde_txtedtpage.h b/xfa/fde/cfde_txtedtpage.h
deleted file mode 100644
index cdf6c55080..0000000000
--- a/xfa/fde/cfde_txtedtpage.h
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright 2014 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_FDE_CFDE_TXTEDTPAGE_H_
-#define XFA_FDE_CFDE_TXTEDTPAGE_H_
-
-#include <deque>
-#include <memory>
-#include <vector>
-
-#include "core/fxcrt/fx_coordinates.h"
-#include "core/fxcrt/ifx_chariter.h"
-#include "core/fxge/cfx_renderdevice.h"
-
-class CFDE_TxtEdtEngine;
-class CFDE_TxtEdtParag;
-class CFDE_TxtEdtTextSet;
-
-struct FDE_TEXTEDITPIECE {
-  FDE_TEXTEDITPIECE();
-  FDE_TEXTEDITPIECE(const FDE_TEXTEDITPIECE& that);
-  ~FDE_TEXTEDITPIECE();
-
-  int32_t nStart;
-  int32_t nCount;
-  int32_t nBidiLevel;
-  CFX_RectF rtPiece;
-  uint32_t dwCharStyles;
-};
-
-inline FDE_TEXTEDITPIECE::FDE_TEXTEDITPIECE() = default;
-inline FDE_TEXTEDITPIECE::FDE_TEXTEDITPIECE(const FDE_TEXTEDITPIECE& that) =
-    default;
-inline FDE_TEXTEDITPIECE::~FDE_TEXTEDITPIECE() = default;
-
-class CFDE_TxtEdtPage {
- public:
-  CFDE_TxtEdtPage(CFDE_TxtEdtEngine* pEngine, int32_t nLineIndex);
-  ~CFDE_TxtEdtPage();
-
-  CFDE_TxtEdtEngine* GetEngine() const { return m_pEditEngine.Get(); }
-
-  int32_t GetCharRect(int32_t nIndex, CFX_RectF& rect, bool bBBox) const;
-  int32_t GetCharIndex(const CFX_PointF& fPoint, bool& bBefore);
-
-  void CalcRangeRectArray(int32_t nStart,
-                          int32_t nCount,
-                          std::vector<CFX_RectF>* RectFArr) const;
-
-  int32_t SelectWord(const CFX_PointF& fPoint, int32_t& nCount);
-
-  int32_t GetCharStart() const { return m_nPageStart; }
-  int32_t GetCharCount() const { return m_nCharCount; }
-
-  int32_t LoadPage();
-  void UnloadPage();
-
-  const CFX_RectF& GetContentsBox() { return m_rtPageContents; }
-
-  size_t GetTextPieceCount() const { return m_pTextSet ? m_Pieces.size() : 0; }
-  const FDE_TEXTEDITPIECE& GetTextPiece(size_t pos) const;
-
-  wchar_t GetChar(const FDE_TEXTEDITPIECE* pIdentity, int32_t index) const;
-  int32_t GetWidth(const FDE_TEXTEDITPIECE* pIdentity, int32_t index) const;
-
-  CFDE_TxtEdtTextSet* GetTextSet() const { return m_pTextSet.get(); }
-
- private:
-  void NormalizePt2Rect(CFX_PointF& ptF,
-                        const CFX_RectF& rtF,
-                        float fTolerance) const;
-
-  std::unique_ptr<IFX_CharIter> m_pIter;
-  std::unique_ptr<CFDE_TxtEdtTextSet> m_pTextSet;
-  CFX_UnownedPtr<CFDE_TxtEdtEngine> const m_pEditEngine;
-  std::deque<FDE_TEXTEDITPIECE> m_Pieces;
-  CFDE_TxtEdtParag* m_pBgnParag;
-  CFDE_TxtEdtParag* m_pEndParag;
-  int32_t m_nRefCount;
-  int32_t m_nPageStart;
-  int32_t m_nCharCount;
-  int32_t m_nPageIndex;
-  bool m_bLoaded;
-  CFX_RectF m_rtPage;
-  CFX_RectF m_rtPageMargin;
-  CFX_RectF m_rtPageContents;
-  CFX_RectF m_rtPageCanvas;
-  std::vector<int32_t> m_CharWidths;
-};
-
-#endif  // XFA_FDE_CFDE_TXTEDTPAGE_H_