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/cfx_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(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) 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(CFX_Graphics* pGraphics, 60 const CFX_Matrix* pMatrix) override; 61 62 CFX_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 CFX_WideStringC& wsText); 67 void RemoveAt(int32_t iIndex); 68 void RemoveAll(); 69 70 void SetEditText(const CFX_WideString& wsText); 71 CFX_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->CountSelRanges() > 0; } 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(CFX_WideString & wsCopy)86 bool EditCopy(CFX_WideString& wsCopy) const { return m_pEdit->Copy(wsCopy); } EditCut(CFX_WideString & wsCut)87 bool EditCut(CFX_WideString& wsCut) { return m_pEdit->Cut(wsCut); } EditPaste(const CFX_WideString & wsPaste)88 bool EditPaste(const CFX_WideString& wsPaste) { 89 return m_pEdit->Paste(wsPaste); 90 } EditSelectAll()91 void EditSelectAll() { m_pEdit->AddSelRange(0); } EditDelete()92 void EditDelete() { m_pEdit->ClearText(); } EditDeSelect()93 void EditDeSelect() { m_pEdit->ClearSelections(); } 94 95 CFX_RectF GetBBox() const; 96 void EditModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved); 97 98 void DrawStretchHandler(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix); IsDropListVisible()99 bool IsDropListVisible() const { 100 return m_pComboBoxProxy && 101 !(m_pComboBoxProxy->GetStates() & FWL_WGTSTATE_Invisible); 102 } 103 void ShowDropList(bool bActivate); 104 GetComboEdit()105 CFWL_ComboEdit* GetComboEdit() const { return m_pEdit.get(); } 106 107 void ProcessSelChanged(bool bLButtonUp); GetCurrentSelection()108 int32_t GetCurrentSelection() const { return m_iCurSel; } 109 110 private: IsDropDownStyle()111 bool IsDropDownStyle() const { 112 return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_DropDown); 113 } 114 void MatchEditText(); 115 void SyncEditText(int32_t iListItem); 116 void Layout(); 117 void ResetTheme(); 118 void ResetEditAlignment(); 119 void ResetListItemAlignment(); 120 void InitProxyForm(); 121 void OnFocusChanged(CFWL_Message* pMsg, bool bSet); 122 void OnLButtonDown(CFWL_MessageMouse* pMsg); 123 void OnLButtonUp(CFWL_MessageMouse* pMsg); 124 void OnMouseMove(CFWL_MessageMouse* pMsg); 125 void OnMouseLeave(CFWL_MessageMouse* pMsg); 126 void OnKey(CFWL_MessageKey* pMsg); 127 void DoSubCtrlKey(CFWL_MessageKey* pMsg); 128 129 void DisForm_InitComboList(); 130 void DisForm_InitComboEdit(); 131 void DisForm_ShowDropList(bool bActivate); DisForm_IsDropListVisible()132 bool DisForm_IsDropListVisible() const { 133 return !(m_pListBox->GetStates() & FWL_WGTSTATE_Invisible); 134 } 135 void DisForm_ModifyStylesEx(uint32_t dwStylesExAdded, 136 uint32_t dwStylesExRemoved); 137 void DisForm_Update(); 138 FWL_WidgetHit DisForm_HitTest(const CFX_PointF& point); 139 void DisForm_DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix); 140 CFX_RectF DisForm_GetBBox() const; 141 void DisForm_Layout(); 142 void DisForm_OnProcessMessage(CFWL_Message* pMessage); 143 void DisForm_OnLButtonDown(CFWL_MessageMouse* pMsg); 144 void DisForm_OnFocusChanged(CFWL_Message* pMsg, bool bSet); 145 void DisForm_OnKey(CFWL_MessageKey* pMsg); 146 147 CFX_RectF m_rtClient; 148 CFX_RectF m_rtContent; 149 CFX_RectF m_rtBtn; 150 CFX_RectF m_rtList; 151 CFX_RectF m_rtProxy; 152 CFX_RectF m_rtHandler; 153 std::unique_ptr<CFWL_ComboEdit> m_pEdit; 154 std::unique_ptr<CFWL_ComboList> m_pListBox; 155 CFWL_ComboBoxProxy* m_pComboBoxProxy; // Can this be a unique_ptr? 156 bool m_bLButtonDown; 157 int32_t m_iCurSel; 158 int32_t m_iBtnState; 159 }; 160 161 #endif // XFA_FWL_CFWL_COMBOBOX_H_ 162