// 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_FPDFDOC_CPDF_FORMCONTROL_H_
#define CORE_FPDFDOC_CPDF_FORMCONTROL_H_

#include <utility>

#include "core/fpdfdoc/cpdf_aaction.h"
#include "core/fpdfdoc/cpdf_action.h"
#include "core/fpdfdoc/cpdf_annot.h"
#include "core/fpdfdoc/cpdf_annotlist.h"
#include "core/fpdfdoc/cpdf_apsettings.h"
#include "core/fpdfdoc/cpdf_defaultappearance.h"
#include "core/fpdfdoc/cpdf_formfield.h"
#include "core/fpdfdoc/cpdf_iconfit.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
#include "core/fxge/cfx_color.h"
#include "core/fxge/dib/fx_dib.h"
#include "third_party/base/optional.h"

class CFX_RenderDevice;
class CPDF_Dictionary;
class CPDF_Font;
class CPDF_FormField;
class CPDF_InteractiveForm;
class CPDF_OCContext;
class CPDF_RenderOptions;
class CPDF_Stream;

class CPDF_FormControl {
 public:
  enum HighlightingMode { None = 0, Invert, Outline, Push, Toggle };

  CPDF_FormControl(CPDF_FormField* pField, CPDF_Dictionary* pWidgetDict);
  ~CPDF_FormControl();

  CPDF_FormField::Type GetType() const { return m_pField->GetType(); }
  CPDF_FormField* GetField() const { return m_pField.Get(); }
  CPDF_Dictionary* GetWidget() const { return m_pWidgetDict.Get(); }
  CFX_FloatRect GetRect() const;

  ByteString GetCheckedAPState() const;
  WideString GetExportValue() const;

  bool IsChecked() const;
  bool IsDefaultChecked() const;

  HighlightingMode GetHighlightingMode() const;
  bool HasMKEntry(const ByteString& csEntry) const;
  int GetRotation() const;

  std::pair<CFX_Color::Type, FX_ARGB> GetBorderColorARGB() {
    return GetColorARGB("BC");
  }

  float GetOriginalBorderColorComponent(int index) {
    return GetOriginalColorComponent(index, "BC");
  }

  CFX_Color GetOriginalBorderColor() { return GetOriginalColor("BC"); }

  std::pair<CFX_Color::Type, FX_ARGB> GetBackgroundColor() {
    return GetColorARGB("BG");
  }

  float GetOriginalBackgroundColorComponent(int index) {
    return GetOriginalColorComponent(index, "BG");
  }

  CFX_Color GetOriginalBackgroundColor() { return GetOriginalColor("BG"); }

  WideString GetNormalCaption() const { return GetCaption("CA"); }
  WideString GetRolloverCaption() const { return GetCaption("RC"); }
  WideString GetDownCaption() const { return GetCaption("AC"); }

  CPDF_Stream* GetNormalIcon() { return GetIcon("I"); }
  CPDF_Stream* GetRolloverIcon() { return GetIcon("RI"); }
  CPDF_Stream* GetDownIcon() { return GetIcon("IX"); }
  CPDF_IconFit GetIconFit() const;

  int GetTextPosition() const;
  CPDF_DefaultAppearance GetDefaultAppearance() const;

  Optional<WideString> GetDefaultControlFontName() const;
  int GetControlAlignment() const;

  ByteString GetOnStateName() const;
  void CheckControl(bool bChecked);

 private:
  RetainPtr<CPDF_Font> GetDefaultControlFont() const;
  std::pair<CFX_Color::Type, FX_ARGB> GetColorARGB(const ByteString& csEntry);
  float GetOriginalColorComponent(int index, const ByteString& csEntry);
  CFX_Color GetOriginalColor(const ByteString& csEntry);

  WideString GetCaption(const ByteString& csEntry) const;
  CPDF_Stream* GetIcon(const ByteString& csEntry);
  CPDF_ApSettings GetMK() const;

  UnownedPtr<CPDF_FormField> const m_pField;
  RetainPtr<CPDF_Dictionary> const m_pWidgetDict;
  UnownedPtr<const CPDF_InteractiveForm> const m_pForm;
};

#endif  // CORE_FPDFDOC_CPDF_FORMCONTROL_H_