// 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_CFWL_EDIT_H_ #define XFA_FWL_CFWL_EDIT_H_ #include <memory> #include <utility> #include <vector> #include "xfa/fde/cfde_texteditengine.h" #include "xfa/fwl/cfwl_event.h" #include "xfa/fwl/cfwl_scrollbar.h" #include "xfa/fwl/cfwl_widget.h" #include "xfa/fxgraphics/cxfa_gepath.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_AutoHScroll (1L << 4) #define FWL_STYLEEXT_EDT_AutoVScroll (1L << 5) #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_CombText (1L << 17) #define FWL_STYLEEXT_EDT_HNear 0 #define FWL_STYLEEXT_EDT_HCenter (1L << 18) #define FWL_STYLEEXT_EDT_HFar (2L << 18) #define FWL_STYLEEXT_EDT_VNear 0 #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_HAlignMask (3L << 18) #define FWL_STYLEEXT_EDT_VAlignMask (3L << 20) #define FWL_STYLEEXT_EDT_HAlignModeMask (3L << 22) #define FWL_STYLEEXT_EDT_ShowScrollbarFocus (1L << 25) #define FWL_STYLEEXT_EDT_OuterScrollbar (1L << 26) class CFWL_Edit; class CFWL_MessageMouse; class CFWL_WidgetProperties; class CFWL_Caret; class CFWL_Edit : public CFWL_Widget, public CFDE_TextEditEngine::Delegate { 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; CFX_RectF GetAutosizedWidgetRect() override; CFX_RectF GetWidgetRect() override; void Update() override; FWL_WidgetHit HitTest(const CFX_PointF& point) override; void SetStates(uint32_t dwStates) override; void DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) override; void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override; void OnProcessMessage(CFWL_Message* pMessage) override; void OnProcessEvent(CFWL_Event* pEvent) override; void OnDrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) override; virtual void SetText(const WideString& wsText, CFDE_TextEditEngine::RecordOperation op = CFDE_TextEditEngine::RecordOperation::kInsertRecord); int32_t GetTextLength() const; WideString GetText() const; void ClearText(); void SelectAll(); void ClearSelection(); bool HasSelection() const; // Returns <start, count> of the selection. std::pair<size_t, size_t> GetSelection() const; int32_t GetLimit() const; void SetLimit(int32_t nLimit); void SetAliasChar(wchar_t wAlias); Optional<WideString> Copy(); Optional<WideString> Cut(); bool Paste(const WideString& wsPaste); bool Undo(); bool Redo(); bool CanUndo(); bool CanRedo(); void SetOuter(CFWL_Widget* pOuter); // CFDE_TextEditEngine::Delegate void NotifyTextFull() override; void OnCaretChanged() override; void OnTextWillChange(CFDE_TextEditEngine::TextChange* change) override; void OnTextChanged() override; void OnSelChanged() override; bool OnValidate(const WideString& wsText) override; void SetScrollOffset(float fScrollOffset) override; protected: void ShowCaret(CFX_RectF* pRect); void HideCaret(CFX_RectF* pRect); const CFX_RectF& GetRTClient() const { return m_rtClient; } CFDE_TextEditEngine* GetTxtEdtEngine() { return &m_EdtEngine; } private: void RenderText(CFX_RenderDevice* pRenderDev, const CFX_RectF& clipRect, const CFX_Matrix& mt); void DrawTextBk(CXFA_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix); void DrawContent(CXFA_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix); void UpdateEditEngine(); void UpdateEditParams(); void UpdateEditLayout(); bool UpdateOffset(); bool UpdateOffset(CFWL_ScrollBar* pScrollBar, float fPosChanged); void UpdateVAlignment(); void UpdateCaret(); CFWL_ScrollBar* UpdateScroll(); void Layout(); void LayoutScrollBar(); CFX_PointF DeviceToEngine(const CFX_PointF& pt); void InitVerticalScrollBar(); void InitHorizontalScrollBar(); void InitEngine(); void InitCaret(); bool ValidateNumberChar(wchar_t cNum); bool IsShowScrollBar(bool bVert); bool IsContentHeightOverflow(); void SetCursorPosition(size_t position); void UpdateCursorRect(); void DoRButtonDown(CFWL_MessageMouse* pMsg); void OnFocusChanged(CFWL_Message* pMsg, bool bSet); void OnLButtonDown(CFWL_MessageMouse* pMsg); void OnLButtonUp(CFWL_MessageMouse* pMsg); void OnButtonDoubleClick(CFWL_MessageMouse* pMsg); void OnMouseMove(CFWL_MessageMouse* pMsg); void OnKeyDown(CFWL_MessageKey* pMsg); void OnChar(CFWL_MessageKey* pMsg); bool OnScroll(CFWL_ScrollBar* pScrollBar, CFWL_EventScroll::Code dwCode, float fPos); CFX_RectF m_rtClient; CFX_RectF m_rtEngine; CFX_RectF m_rtStatic; CFX_RectF m_rtCaret; float m_fVAlignOffset; float m_fScrollOffsetX; float m_fScrollOffsetY; CFDE_TextEditEngine m_EdtEngine; bool m_bLButtonDown; size_t m_CursorPosition; int32_t m_nLimit; 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; WideString m_wsCache; WideString m_wsFont; }; #endif // XFA_FWL_CFWL_EDIT_H_