// 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_LISTBOX_H_ #define XFA_FWL_CFWL_LISTBOX_H_ #include <memory> #include <vector> #include "xfa/fwl/cfwl_edit.h" #include "xfa/fwl/cfwl_event.h" #include "xfa/fwl/cfwl_listbox.h" #include "xfa/fwl/cfwl_listitem.h" #include "xfa/fwl/cfwl_widget.h" #include "xfa/fwl/cfwl_widgetproperties.h" #define FWL_STYLEEXT_LTB_MultiSelection (1L << 0) #define FWL_STYLEEXT_LTB_LeftAlign (0L << 4) #define FWL_STYLEEXT_LTB_CenterAlign (1L << 4) #define FWL_STYLEEXT_LTB_RightAlign (2L << 4) #define FWL_STYLEEXT_LTB_AlignMask (3L << 4) #define FWL_STYLEEXT_LTB_ShowScrollBarFocus (1L << 10) #define FWL_ITEMSTATE_LTB_Selected (1L << 0) #define FWL_ITEMSTATE_LTB_Focused (1L << 1) class CFWL_MessageKillFocus; class CFWL_MessageMouse; class CFWL_MessageMouseWheel; class CFX_DIBitmap; class CFWL_ListBox : public CFWL_Widget { public: explicit CFWL_ListBox(const CFWL_App* pApp, std::unique_ptr<CFWL_WidgetProperties> properties, CFWL_Widget* pOuter); ~CFWL_ListBox() override; // CFWL_Widget FWL_Type GetClassID() const override; void Update() override; FWL_WidgetHit HitTest(const CFX_PointF& point) 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; int32_t CountItems(const CFWL_Widget* pWidget) const; CFWL_ListItem* GetItem(const CFWL_Widget* pWidget, int32_t nIndex) const; int32_t GetItemIndex(CFWL_Widget* pWidget, CFWL_ListItem* pItem); CFWL_ListItem* AddString(const CFX_WideStringC& wsAdd); void RemoveAt(int32_t iIndex); void DeleteString(CFWL_ListItem* pItem); void DeleteAll(); int32_t CountSelItems(); CFWL_ListItem* GetSelItem(int32_t nIndexSel); int32_t GetSelIndex(int32_t nIndex); void SetSelItem(CFWL_ListItem* hItem, bool bSelect); float GetItemHeight() const { return m_fItemHeight; } float CalcItemHeight(); protected: CFWL_ListItem* GetListItem(CFWL_ListItem* hItem, uint32_t dwKeyCode); void SetSelection(CFWL_ListItem* hStart, CFWL_ListItem* hEnd, bool bSelected); CFWL_ListItem* GetItemAtPoint(const CFX_PointF& point); bool ScrollToVisible(CFWL_ListItem* hItem); void InitVerticalScrollBar(); void InitHorizontalScrollBar(); bool IsShowScrollBar(bool bVert); CFWL_ScrollBar* GetVertScrollBar() const { return m_pVertScrollBar.get(); } const CFX_RectF& GetRTClient() const { return m_rtClient; } private: void SetSelectionDirect(CFWL_ListItem* hItem, bool bSelect); bool IsMultiSelection() const; bool IsItemSelected(CFWL_ListItem* hItem); void ClearSelection(); void SelectAll(); CFWL_ListItem* GetFocusedItem(); void SetFocusItem(CFWL_ListItem* hItem); void DrawBkground(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix); void DrawItems(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, const CFX_Matrix* pMatrix); void DrawItem(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme, CFWL_ListItem* hItem, int32_t Index, const CFX_RectF& rtItem, const CFX_Matrix* pMatrix); void DrawStatic(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme); CFX_SizeF CalcSize(bool bAutoSize); void UpdateItemSize(CFWL_ListItem* hItem, CFX_SizeF& size, float fWidth, float fHeight, bool bAutoSize) const; float GetMaxTextWidth(); float GetScrollWidth(); void OnFocusChanged(CFWL_Message* pMsg, bool bSet); void OnLButtonDown(CFWL_MessageMouse* pMsg); void OnLButtonUp(CFWL_MessageMouse* pMsg); void OnMouseWheel(CFWL_MessageMouseWheel* pMsg); void OnKeyDown(CFWL_MessageKey* pMsg); void OnVK(CFWL_ListItem* hItem, bool bShift, bool bCtrl); bool OnScroll(CFWL_ScrollBar* pScrollBar, CFWL_EventScroll::Code dwCode, float fPos); CFX_RectF m_rtClient; CFX_RectF m_rtStatic; CFX_RectF m_rtConent; std::unique_ptr<CFWL_ScrollBar> m_pHorzScrollBar; std::unique_ptr<CFWL_ScrollBar> m_pVertScrollBar; uint32_t m_dwTTOStyles; int32_t m_iTTOAligns; CFWL_ListItem* m_hAnchor; float m_fItemHeight; float m_fScorllBarWidth; bool m_bLButtonDown; IFWL_ThemeProvider* m_pScrollBarTP; std::vector<std::unique_ptr<CFWL_ListItem>> m_ItemArray; }; #endif // XFA_FWL_CFWL_LISTBOX_H_