fpdfsdk/include/pdfwindow/PWL_Caret.h

// 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 FPDFSDK_INCLUDE_PDFWINDOW_PWL_CARET_H_
#define FPDFSDK_INCLUDE_PDFWINDOW_PWL_CARET_H_

#include "PWL_Wnd.h"

struct PWL_CARET_INFO {
 public:
  PWL_CARET_INFO() : bVisible(FALSE), ptHead(0, 0), ptFoot(0, 0) {}

  FX_BOOL bVisible;
  CPDF_Point ptHead;
  CPDF_Point ptFoot;
};

class CPWL_Caret : public CPWL_Wnd {
 public:
  CPWL_Caret();
  ~CPWL_Caret() override;

  // CPWL_Wnd
  CFX_ByteString GetClassName() const override;
  void GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) override;
  void DrawThisAppearance(CFX_RenderDevice* pDevice,
                          CFX_Matrix* pUser2Device) override;
  void InvalidateRect(CPDF_Rect* pRect = NULL) override;
  void SetVisible(FX_BOOL bVisible) override {}
  void TimerProc() override;

  void SetCaret(FX_BOOL bVisible,
                const CPDF_Point& ptHead,
                const CPDF_Point& ptFoot);
  CFX_ByteString GetCaretAppearanceStream(const CPDF_Point& ptOffset);
  void SetInvalidRect(CPDF_Rect rc) { m_rcInvalid = rc; }

 private:
  void GetCaretApp(CFX_ByteTextBuf& sAppStream, const CPDF_Point& ptOffset);
  CPDF_Rect GetCaretRect() const;

  FX_BOOL m_bFlash;
  CPDF_Point m_ptHead;
  CPDF_Point m_ptFoot;
  FX_FLOAT m_fWidth;
  int32_t m_nDelay;
  CPDF_Rect m_rcInvalid;
};

#endif  // FPDFSDK_INCLUDE_PDFWINDOW_PWL_CARET_H_