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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 XFA_FWL_CORE_CFWL_EDIT_H_
#define XFA_FWL_CORE_CFWL_EDIT_H_
#include <deque>
#include <memory>
#include <vector>
#include "xfa/fde/cfde_txtedtengine.h"
#include "xfa/fde/ifde_txtedtdorecord.h"
#include "xfa/fwl/core/cfwl_event.h"
#include "xfa/fwl/core/cfwl_scrollbar.h"
#include "xfa/fwl/core/cfwl_widget.h"
#include "xfa/fxgraphics/cfx_path.h"
#define FWL_STYLEEXT_EDT_ReadOnly (1L << 0)
#define FWL_STYLEEXT_EDT_MultiLine (1L << 1)
#define FWL_STYLEEXT_EDT_WantReturn (1L << 2)
#define FWL_STYLEEXT_EDT_NoHideSel (1L << 3)
#define FWL_STYLEEXT_EDT_AutoHScroll (1L << 4)
#define FWL_STYLEEXT_EDT_AutoVScroll (1L << 5)
#define FWL_STYLEEXT_EDT_NoRedoUndo (1L << 6)
#define FWL_STYLEEXT_EDT_Validate (1L << 7)
#define FWL_STYLEEXT_EDT_Password (1L << 8)
#define FWL_STYLEEXT_EDT_Number (1L << 9)
#define FWL_STYLEEXT_EDT_VerticalLayout (1L << 12)
#define FWL_STYLEEXT_EDT_VerticalChars (1L << 13)
#define FWL_STYLEEXT_EDT_ReverseLine (1L << 14)
#define FWL_STYLEEXT_EDT_ArabicShapes (1L << 15)
#define FWL_STYLEEXT_EDT_ExpandTab (1L << 16)
#define FWL_STYLEEXT_EDT_CombText (1L << 17)
#define FWL_STYLEEXT_EDT_HNear (0L << 18)
#define FWL_STYLEEXT_EDT_HCenter (1L << 18)
#define FWL_STYLEEXT_EDT_HFar (2L << 18)
#define FWL_STYLEEXT_EDT_VNear (0L << 20)
#define FWL_STYLEEXT_EDT_VCenter (1L << 20)
#define FWL_STYLEEXT_EDT_VFar (2L << 20)
#define FWL_STYLEEXT_EDT_Justified (1L << 22)
#define FWL_STYLEEXT_EDT_Distributed (2L << 22)
#define FWL_STYLEEXT_EDT_HAlignMask (3L << 18)
#define FWL_STYLEEXT_EDT_VAlignMask (3L << 20)
#define FWL_STYLEEXT_EDT_HAlignModeMask (3L << 22)
#define FWL_STYLEEXT_EDT_InnerCaret (1L << 24)
#define FWL_STYLEEXT_EDT_ShowScrollbarFocus (1L << 25)
#define FWL_STYLEEXT_EDT_OuterScrollbar (1L << 26)
#define FWL_STYLEEXT_EDT_LastLineHeight (1L << 27)
class IFDE_TxtEdtDoRecord;
class CFWL_Edit;
class CFWL_MsgMouse;
class CFWL_WidgetProperties;
class CFWL_Caret;
class CFWL_Edit : public CFWL_Widget {
public:
CFWL_Edit(const CFWL_App* app,
std::unique_ptr<CFWL_WidgetProperties> properties,
CFWL_Widget* pOuter);
~CFWL_Edit() override;
// CFWL_Widget:
FWL_Type GetClassID() const override;
void GetWidgetRect(CFX_RectF& rect, bool bAutoSize) override;
void Update() override;
FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
void SetStates(uint32_t dwStates) override;
void DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) override;
void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override;
void OnProcessMessage(CFWL_Message* pMessage) override;
void OnProcessEvent(CFWL_Event* pEvent) override;
void OnDrawWidget(CFX_Graphics* pGraphics,
const CFX_Matrix* pMatrix) override;
virtual void SetText(const CFX_WideString& wsText);
int32_t GetTextLength() const;
CFX_WideString GetText() const;
void ClearText();
void AddSelRange(int32_t nStart);
int32_t CountSelRanges() const;
int32_t GetSelRange(int32_t nIndex, int32_t* nStart) const;
void ClearSelections();
int32_t GetLimit() const;
void SetLimit(int32_t nLimit);
void SetAliasChar(FX_WCHAR wAlias);
bool Copy(CFX_WideString& wsCopy);
bool Cut(CFX_WideString& wsCut);
bool Paste(const CFX_WideString& wsPaste);
bool Redo(const IFDE_TxtEdtDoRecord* pRecord);
bool Undo(const IFDE_TxtEdtDoRecord* pRecord);
bool Undo();
bool Redo();
bool CanUndo();
bool CanRedo();
void SetOuter(CFWL_Widget* pOuter);
void OnCaretChanged();
void OnTextChanged(const FDE_TXTEDT_TEXTCHANGE_INFO& ChangeInfo);
void OnSelChanged();
bool OnPageLoad(int32_t nPageIndex);
bool OnPageUnload(int32_t nPageIndex);
void OnAddDoRecord(std::unique_ptr<IFDE_TxtEdtDoRecord> pRecord);
bool OnValidate(const CFX_WideString& wsText);
void SetScrollOffset(FX_FLOAT fScrollOffset);
protected:
void ShowCaret(CFX_RectF* pRect);
void HideCaret(CFX_RectF* pRect);
const CFX_RectF& GetRTClient() const { return m_rtClient; }
CFDE_TxtEdtEngine* GetTxtEdtEngine() { return &m_EdtEngine; }
private:
void DrawTextBk(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix);
void DrawContent(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix);
void DrawSpellCheck(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix);
void UpdateEditEngine();
void UpdateEditParams();
void UpdateEditLayout();
bool UpdateOffset();
bool UpdateOffset(CFWL_ScrollBar* pScrollBar, FX_FLOAT fPosChanged);
void UpdateVAlignment();
void UpdateCaret();
CFWL_ScrollBar* UpdateScroll();
void Layout();
void LayoutScrollBar();
void DeviceToEngine(CFX_PointF& pt);
void InitVerticalScrollBar();
void InitHorizontalScrollBar();
void InitEngine();
void InitCaret();
bool ValidateNumberChar(FX_WCHAR cNum);
void ClearRecord();
bool IsShowScrollBar(bool bVert);
bool IsContentHeightOverflow();
int32_t AddDoRecord(std::unique_ptr<IFDE_TxtEdtDoRecord> pRecord);
void ProcessInsertError(int32_t iError);
void AddSpellCheckObj(CFX_Path& PathData,
int32_t nStart,
int32_t nCount,
FX_FLOAT fOffSetX,
FX_FLOAT fOffSetY);
void DoButtonDown(CFWL_MsgMouse* pMsg);
void OnFocusChanged(CFWL_Message* pMsg, bool bSet);
void OnLButtonDown(CFWL_MsgMouse* pMsg);
void OnLButtonUp(CFWL_MsgMouse* pMsg);
void OnButtonDblClk(CFWL_MsgMouse* pMsg);
void OnMouseMove(CFWL_MsgMouse* pMsg);
void OnKeyDown(CFWL_MsgKey* pMsg);
void OnChar(CFWL_MsgKey* pMsg);
bool OnScroll(CFWL_ScrollBar* pScrollBar,
CFWL_EvtScroll::Code dwCode,
FX_FLOAT fPos);
CFX_RectF m_rtClient;
CFX_RectF m_rtEngine;
CFX_RectF m_rtStatic;
FX_FLOAT m_fVAlignOffset;
FX_FLOAT m_fScrollOffsetX;
FX_FLOAT m_fScrollOffsetY;
CFDE_TxtEdtEngine m_EdtEngine;
bool m_bLButtonDown;
int32_t m_nSelStart;
int32_t m_nLimit;
FX_FLOAT m_fFontSize;
bool m_bSetRange;
int32_t m_iMax;
std::unique_ptr<CFWL_ScrollBar> m_pVertScrollBar;
std::unique_ptr<CFWL_ScrollBar> m_pHorzScrollBar;
std::unique_ptr<CFWL_Caret> m_pCaret;
CFX_WideString m_wsCache;
CFX_WideString m_wsFont;
std::deque<std::unique_ptr<IFDE_TxtEdtDoRecord>> m_DoRecords;
int32_t m_iCurRecord;
int32_t m_iMaxRecord;
};
#endif // XFA_FWL_CORE_CFWL_EDIT_H_
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