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// 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_CORE_IFWL_LISTBOX_H_
#define XFA_FWL_CORE_IFWL_LISTBOX_H_
#include <memory>
#include "xfa/fwl/core/cfwl_event.h"
#include "xfa/fwl/core/cfwl_listitem.h"
#include "xfa/fwl/core/cfwl_widgetproperties.h"
#include "xfa/fwl/core/ifwl_dataprovider.h"
#include "xfa/fwl/core/ifwl_edit.h"
#include "xfa/fwl/core/ifwl_listbox.h"
#include "xfa/fwl/core/ifwl_widget.h"
#define FWL_STYLEEXT_LTB_MultiSelection (1L << 0)
#define FWL_STYLEEXT_LTB_ShowScrollBarAlaways (1L << 2)
#define FWL_STYLEEXT_LTB_MultiColumn (1L << 3)
#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_MultiLine (1L << 6)
#define FWL_STYLEEXT_LTB_OwnerDraw (1L << 7)
#define FWL_STYLEEXT_LTB_Icon (1L << 8)
#define FWL_STYLEEXT_LTB_Check (1L << 9)
#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)
#define FWL_ITEMSTATE_LTB_Checked (1L << 2)
class CFWL_MsgKillFocus;
class CFWL_MsgMouse;
class CFWL_MsgMouseWheel;
class CFX_DIBitmap;
FWL_EVENT_DEF(CFWL_EvtLtbSelChanged,
CFWL_EventType::SelectChanged,
CFX_Int32Array iarraySels;)
FWL_EVENT_DEF(CFWL_EvtLtbDrawItem,
CFWL_EventType::DrawItem,
CFX_Graphics* m_pGraphics;
CFX_Matrix m_matrix;
int32_t m_index;
CFX_RectF m_rect;)
class IFWL_ListBoxDP : public IFWL_DataProvider {
public:
virtual int32_t CountItems(const IFWL_Widget* pWidget) const = 0;
virtual CFWL_ListItem* GetItem(const IFWL_Widget* pWidget,
int32_t nIndex) const = 0;
virtual int32_t GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) = 0;
virtual bool SetItemIndex(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
int32_t nIndex) = 0;
virtual uint32_t GetItemStyles(IFWL_Widget* pWidget,
CFWL_ListItem* pItem) = 0;
virtual void GetItemText(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
CFX_WideString& wsText) = 0;
virtual void GetItemRect(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
CFX_RectF& rtItem) = 0;
virtual void* GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) = 0;
virtual void SetItemStyles(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
uint32_t dwStyle) = 0;
virtual void SetItemText(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
const FX_WCHAR* pszText) = 0;
virtual void SetItemRect(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
const CFX_RectF& rtItem) = 0;
virtual FX_FLOAT GetItemHeight(IFWL_Widget* pWidget) = 0;
virtual CFX_DIBitmap* GetItemIcon(IFWL_Widget* pWidget,
CFWL_ListItem* pItem) = 0;
virtual void GetItemCheckRect(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
CFX_RectF& rtCheck) = 0;
virtual void SetItemCheckRect(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
const CFX_RectF& rtCheck) = 0;
virtual uint32_t GetItemCheckState(IFWL_Widget* pWidget,
CFWL_ListItem* pItem) = 0;
virtual void SetItemCheckState(IFWL_Widget* pWidget,
CFWL_ListItem* pItem,
uint32_t dwCheckState) = 0;
};
class IFWL_ListBox : public IFWL_Widget {
public:
IFWL_ListBox(const IFWL_App* app,
std::unique_ptr<CFWL_WidgetProperties> properties,
IFWL_Widget* pOuter);
~IFWL_ListBox() override;
// IFWL_Widget
FWL_Type GetClassID() const override;
void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
void Update() override;
FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
void DrawWidget(CFX_Graphics* pGraphics,
const CFX_Matrix* pMatrix = nullptr) 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 CountSelItems();
CFWL_ListItem* GetSelItem(int32_t nIndexSel);
int32_t GetSelIndex(int32_t nIndex);
void SetSelItem(CFWL_ListItem* hItem, bool bSelect = true);
void GetItemText(CFWL_ListItem* hItem, CFX_WideString& wsText);
void GetScrollPos(FX_FLOAT& fPos, bool bVert = true);
FX_FLOAT GetItemHeight() const { return m_fItemHeight; }
FX_FLOAT CalcItemHeight();
protected:
CFWL_ListItem* GetItem(CFWL_ListItem* hItem, uint32_t dwKeyCode);
void SetSelection(CFWL_ListItem* hStart, CFWL_ListItem* hEnd, bool bSelected);
CFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
bool ScrollToVisible(CFWL_ListItem* hItem);
void InitScrollBar(bool bVert = true);
bool IsShowScrollBar(bool bVert);
IFWL_ScrollBar* GetVertScrollBar() const { return m_pVertScrollBar.get(); }
const CFX_RectF& GetRTClient() const { return m_rtClient; }
private:
void SetSelectionDirect(CFWL_ListItem* hItem, bool bSelect);
bool IsItemSelected(CFWL_ListItem* hItem);
void ClearSelection();
void SelectAll();
CFWL_ListItem* GetFocusedItem();
void SetFocusItem(CFWL_ListItem* hItem);
bool GetItemCheckRect(CFWL_ListItem* hItem, CFX_RectF& rtCheck);
bool SetItemChecked(CFWL_ListItem* hItem, bool bChecked);
bool GetItemChecked(CFWL_ListItem* hItem);
void DrawBkground(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix = nullptr);
void DrawItems(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix = nullptr);
void DrawItem(CFX_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
CFWL_ListItem* hItem,
int32_t Index,
const CFX_RectF& rtItem,
const CFX_Matrix* pMatrix = nullptr);
void DrawStatic(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme);
CFX_SizeF CalcSize(bool bAutoSize = false);
void GetItemSize(CFX_SizeF& size,
CFWL_ListItem* hItem,
FX_FLOAT fWidth,
FX_FLOAT fHeight,
bool bAutoSize = false);
FX_FLOAT GetMaxTextWidth();
FX_FLOAT GetScrollWidth();
void ProcessSelChanged();
void OnFocusChanged(CFWL_Message* pMsg, bool bSet = true);
void OnLButtonDown(CFWL_MsgMouse* pMsg);
void OnLButtonUp(CFWL_MsgMouse* pMsg);
void OnMouseWheel(CFWL_MsgMouseWheel* pMsg);
void OnKeyDown(CFWL_MsgKey* pMsg);
void OnVK(CFWL_ListItem* hItem, bool bShift, bool bCtrl);
bool OnScroll(IFWL_ScrollBar* pScrollBar, FWL_SCBCODE dwCode, FX_FLOAT fPos);
void DispatchSelChangedEv();
CFX_RectF m_rtClient;
CFX_RectF m_rtStatic;
CFX_RectF m_rtConent;
std::unique_ptr<IFWL_ScrollBar> m_pHorzScrollBar;
std::unique_ptr<IFWL_ScrollBar> m_pVertScrollBar;
uint32_t m_dwTTOStyles;
int32_t m_iTTOAligns;
CFWL_ListItem* m_hAnchor;
FX_FLOAT m_fItemHeight;
FX_FLOAT m_fScorllBarWidth;
bool m_bLButtonDown;
IFWL_ThemeProvider* m_pScrollBarTP;
};
#endif // XFA_FWL_CORE_IFWL_LISTBOX_H_
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