| // 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 "xfa/fde/cfde_texteditengine.h" |
| #include "xfa/fgas/graphics/cfgas_gepath.h" |
| #include "xfa/fwl/cfwl_event.h" |
| #include "xfa/fwl/cfwl_scrollbar.h" |
| #include "xfa/fwl/cfwl_widget.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_Caret; |
| |
| class CFWL_Edit : public CFWL_Widget, public CFDE_TextEditEngine::Delegate { |
| public: |
| CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED; |
| ~CFWL_Edit() override; |
| |
| // CFWL_Widget: |
| void PreFinalize() override; |
| void Trace(cppgc::Visitor* visitor) const override; |
| 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(CFGAS_GEGraphics* pGraphics, |
| const CFX_Matrix& matrix) override; |
| void OnProcessMessage(CFWL_Message* pMessage) override; |
| void OnProcessEvent(CFWL_Event* pEvent) override; |
| void OnDrawWidget(CFGAS_GEGraphics* pGraphics, |
| const CFX_Matrix& matrix) override; |
| |
| virtual void SetText(const WideString& wsText); |
| virtual void SetTextSkipNotify(const WideString& wsText); |
| |
| 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(); |
| |
| // 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: |
| CFWL_Edit(CFWL_App* app, const Properties& properties, CFWL_Widget* pOuter); |
| |
| void ShowCaret(CFX_RectF* pRect); |
| void HideCaret(CFX_RectF* pRect); |
| const CFX_RectF& GetRTClient() const { return m_ClientRect; } |
| CFDE_TextEditEngine* GetTxtEdtEngine() { return m_pEditEngine.get(); } |
| |
| private: |
| void RenderText(CFX_RenderDevice* pRenderDev, |
| const CFX_RectF& clipRect, |
| const CFX_Matrix& mt); |
| void DrawTextBk(CFGAS_GEGraphics* pGraphics, const CFX_Matrix* pMatrix); |
| void DrawContent(CFGAS_GEGraphics* pGraphics, 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_ClientRect; |
| CFX_RectF m_EngineRect; |
| CFX_RectF m_StaticRect; |
| CFX_RectF m_CaretRect; |
| bool m_bLButtonDown = false; |
| bool m_bSetRange = false; |
| int32_t m_nLimit = -1; |
| int32_t m_iMax = 0xFFFFFFF; |
| float m_fVAlignOffset = 0.0f; |
| float m_fScrollOffsetX = 0.0f; |
| float m_fScrollOffsetY = 0.0f; |
| float m_fFontSize = 0.0f; |
| size_t m_CursorPosition = 0; |
| std::unique_ptr<CFDE_TextEditEngine> const m_pEditEngine; |
| cppgc::Member<CFWL_ScrollBar> m_pVertScrollBar; |
| cppgc::Member<CFWL_ScrollBar> m_pHorzScrollBar; |
| cppgc::Member<CFWL_Caret> m_pCaret; |
| WideString m_wsCache; |
| WideString m_wsFont; |
| }; |
| |
| #endif // XFA_FWL_CFWL_EDIT_H_ |