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// 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_PWL_CPWL_EDIT_CTRL_H_
#define FPDFSDK_PWL_CPWL_EDIT_CTRL_H_
#include <memory>
#include <utility>
#include "core/fxcrt/fx_codepage.h"
#include "core/fxcrt/fx_string.h"
#include "fpdfsdk/pwl/cpwl_wnd.h"
class CPWL_EditImpl;
class CPWL_Caret;
struct CPVT_WordPlace;
enum PWL_EDIT_ALIGNFORMAT_H { PEAH_LEFT = 0, PEAH_MIDDLE, PEAH_RIGHT };
enum PWL_EDIT_ALIGNFORMAT_V { PEAV_TOP = 0, PEAV_CENTER, PEAV_BOTTOM };
class CPWL_EditCtrl : public CPWL_Wnd {
public:
CPWL_EditCtrl(
const CreateParams& cp,
std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData);
~CPWL_EditCtrl() override;
void SetSelection(int32_t nStartChar, int32_t nEndChar);
std::pair<int32_t, int32_t> GetSelection() const;
void ClearSelection();
CFX_PointF GetScrollPos() const;
void SetScrollPos(const CFX_PointF& point);
void SetCharSet(uint8_t nCharSet) { m_nCharSet = nCharSet; }
int32_t GetCharSet() const;
void SetReadyToInput();
// CPWL_Wnd:
void OnCreated() override;
bool OnKeyDown(uint16_t nChar, uint32_t nFlag) override;
bool OnChar(uint16_t nChar, uint32_t nFlag) override;
bool OnLButtonDown(uint32_t nFlag, const CFX_PointF& point) override;
bool OnLButtonUp(uint32_t nFlag, const CFX_PointF& point) override;
bool OnMouseMove(uint32_t nFlag, const CFX_PointF& point) override;
void SetScrollInfo(const PWL_SCROLL_INFO& info) override;
void SetScrollPosition(float pos) override;
void ScrollWindowVertically(float pos) override;
void CreateChildWnd(const CreateParams& cp) override;
bool RePosChildWnd() override;
void SetFontSize(float fFontSize) override;
float GetFontSize() const override;
void SetCursor() override;
WideString GetText() override;
WideString GetSelectedText() override;
void ReplaceSelection(const WideString& text) override;
bool SelectAllText() override;
bool CanUndo() override;
bool CanRedo() override;
bool Undo() override;
bool Redo() override;
bool SetCaret(bool bVisible,
const CFX_PointF& ptHead,
const CFX_PointF& ptFoot);
protected:
void CopyText();
void PasteText();
void CutText();
void InsertWord(uint16_t word, int32_t nCharset);
void InsertReturn();
bool IsWndHorV() const;
void Delete();
void Backspace();
void GetCaretInfo(CFX_PointF* ptHead, CFX_PointF* ptFoot) const;
void SetEditCaret(bool bVisible);
std::unique_ptr<CPWL_EditImpl> const m_pEdit;
CPWL_Caret* m_pEditCaret = nullptr;
bool m_bMouseDown = false;
private:
void CreateEditCaret(const CreateParams& cp);
int32_t m_nCharSet = FX_CHARSET_Default;
};
#endif // FPDFSDK_PWL_CPWL_EDIT_CTRL_H_