1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef XFA_FWL_CFWL_COMBOBOX_H_ 8 #define XFA_FWL_CFWL_COMBOBOX_H_ 9 10 #include <memory> 11 12 #include "xfa/fwl/cfwl_comboboxproxy.h" 13 #include "xfa/fwl/cfwl_comboedit.h" 14 #include "xfa/fwl/cfwl_combolist.h" 15 #include "xfa/fwl/cfwl_form.h" 16 #include "xfa/fwl/cfwl_listbox.h" 17 #include "xfa/fxgraphics/cxfa_graphics.h" 18 19 class CFWL_WidgetProperties; 20 class CFWL_ComboBox; 21 class CFWL_ComboBoxProxy; 22 class CFWL_FormProxy; 23 class CFWL_ListBox; 24 class CFWL_Widget; 25 26 #define FWL_STYLEEXT_CMB_DropDown (1L << 0) 27 #define FWL_STYLEEXT_CMB_Sort (1L << 1) 28 #define FWL_STYLEEXT_CMB_OwnerDraw (1L << 3) 29 #define FWL_STYLEEXT_CMB_EditHNear 0 30 #define FWL_STYLEEXT_CMB_EditHCenter (1L << 4) 31 #define FWL_STYLEEXT_CMB_EditVNear 0 32 #define FWL_STYLEEXT_CMB_EditVCenter (1L << 6) 33 #define FWL_STYLEEXT_CMB_EditVFar (2L << 6) 34 #define FWL_STYLEEXT_CMB_EditJustified (1L << 8) 35 #define FWL_STYLEEXT_CMB_EditHAlignMask (3L << 4) 36 #define FWL_STYLEEXT_CMB_EditVAlignMask (3L << 6) 37 #define FWL_STYLEEXT_CMB_ListItemLeftAlign 0 38 #define FWL_STYLEEXT_CMB_ListItemCenterAlign (1L << 10) 39 #define FWL_STYLEEXT_CMB_ListItemAlignMask (3L << 10) 40 #define FWL_STYLEEXT_CMB_ReadOnly (1L << 13) 41 42 class CFWL_ComboBox : public CFWL_Widget { 43 public: 44 explicit CFWL_ComboBox(const CFWL_App* pApp); 45 ~CFWL_ComboBox() override; 46 47 // CFWL_Widget 48 FWL_Type GetClassID() const override; 49 void ModifyStylesEx(uint32_t dwStylesExAdded, 50 uint32_t dwStylesExRemoved) override; 51 void SetStates(uint32_t dwStates) override; 52 void RemoveStates(uint32_t dwStates) override; 53 void Update() override; 54 FWL_WidgetHit HitTest(const CFX_PointF& point) override; 55 void DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) override; 56 void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override; 57 void OnProcessMessage(CFWL_Message* pMessage) override; 58 void OnProcessEvent(CFWL_Event* pEvent) override; 59 void OnDrawWidget(CXFA_Graphics* pGraphics, 60 const CFX_Matrix& matrix) override; 61 62 WideString GetTextByIndex(int32_t iIndex) const; GetCurSel()63 int32_t GetCurSel() const { return m_iCurSel; } 64 void SetCurSel(int32_t iSel); 65 66 void AddString(const WideStringView& wsText); 67 void RemoveAt(int32_t iIndex); 68 void RemoveAll(); 69 70 void SetEditText(const WideString& wsText); 71 WideString GetEditText() const; 72 73 void OpenDropDownList(bool bActivate); 74 EditCanUndo()75 bool EditCanUndo() const { return m_pEdit->CanUndo(); } EditCanRedo()76 bool EditCanRedo() const { return m_pEdit->CanRedo(); } EditUndo()77 bool EditUndo() { return m_pEdit->Undo(); } EditRedo()78 bool EditRedo() { return m_pEdit->Redo(); } EditCanCopy()79 bool EditCanCopy() const { return m_pEdit->HasSelection(); } EditCanCut()80 bool EditCanCut() const { 81 if (m_pEdit->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly) 82 return false; 83 return EditCanCopy(); 84 } EditCanSelectAll()85 bool EditCanSelectAll() const { return m_pEdit->GetTextLength() > 0; } EditCopy()86 Optional<WideString> EditCopy() const { return m_pEdit->Copy(); } EditCut()87 Optional<WideString> EditCut() { return m_pEdit->Cut(); } EditPaste(const WideString & wsPaste)88 bool EditPaste(const WideString& wsPaste) { return m_pEdit->Paste(wsPaste); } EditSelectAll()89 void EditSelectAll() { m_pEdit->SelectAll(); } EditDelete()90 void EditDelete() { m_pEdit->ClearText(); } EditDeSelect()91 void EditDeSelect() { m_pEdit->ClearSelection(); } 92 93 CFX_RectF GetBBox() const; 94 void EditModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved); 95 96 void DrawStretchHandler(CXFA_Graphics* pGraphics, const CFX_Matrix* pMatrix); IsDropListVisible()97 bool IsDropListVisible() const { 98 return m_pComboBoxProxy && 99 !(m_pComboBoxProxy->GetStates() & FWL_WGTSTATE_Invisible); 100 } 101 void ShowDropList(bool bActivate); 102 GetComboEdit()103 CFWL_ComboEdit* GetComboEdit() const { return m_pEdit.get(); } 104 105 void ProcessSelChanged(bool bLButtonUp); GetCurrentSelection()106 int32_t GetCurrentSelection() const { return m_iCurSel; } 107 108 private: IsDropDownStyle()109 bool IsDropDownStyle() const { 110 return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_DropDown); 111 } 112 void MatchEditText(); 113 void SyncEditText(int32_t iListItem); 114 void Layout(); 115 void ResetTheme(); 116 void ResetEditAlignment(); 117 void ResetListItemAlignment(); 118 void InitProxyForm(); 119 void OnFocusChanged(CFWL_Message* pMsg, bool bSet); 120 void OnLButtonDown(CFWL_MessageMouse* pMsg); 121 void OnLButtonUp(CFWL_MessageMouse* pMsg); 122 void OnMouseMove(CFWL_MessageMouse* pMsg); 123 void OnMouseLeave(CFWL_MessageMouse* pMsg); 124 void OnKey(CFWL_MessageKey* pMsg); 125 void DoSubCtrlKey(CFWL_MessageKey* pMsg); 126 127 void DisForm_InitComboList(); 128 void DisForm_InitComboEdit(); 129 void DisForm_ShowDropList(bool bActivate); DisForm_IsDropListVisible()130 bool DisForm_IsDropListVisible() const { 131 return !(m_pListBox->GetStates() & FWL_WGTSTATE_Invisible); 132 } 133 void DisForm_ModifyStylesEx(uint32_t dwStylesExAdded, 134 uint32_t dwStylesExRemoved); 135 void DisForm_Update(); 136 FWL_WidgetHit DisForm_HitTest(const CFX_PointF& point); 137 void DisForm_DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix* pMatrix); 138 CFX_RectF DisForm_GetBBox() const; 139 void DisForm_Layout(); 140 void DisForm_OnProcessMessage(CFWL_Message* pMessage); 141 void DisForm_OnLButtonDown(CFWL_MessageMouse* pMsg); 142 void DisForm_OnFocusChanged(CFWL_Message* pMsg, bool bSet); 143 void DisForm_OnKey(CFWL_MessageKey* pMsg); 144 145 CFX_RectF m_rtClient; 146 CFX_RectF m_rtContent; 147 CFX_RectF m_rtBtn; 148 CFX_RectF m_rtList; 149 CFX_RectF m_rtProxy; 150 CFX_RectF m_rtHandler; 151 std::unique_ptr<CFWL_ComboEdit> m_pEdit; 152 std::unique_ptr<CFWL_ComboList> m_pListBox; 153 CFWL_ComboBoxProxy* m_pComboBoxProxy; // Can this be a unique_ptr? 154 bool m_bLButtonDown; 155 int32_t m_iCurSel; 156 int32_t m_iBtnState; 157 }; 158 159 #endif // XFA_FWL_CFWL_COMBOBOX_H_ 160