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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_CFWL_COMBOBOX_H_
#define XFA_FWL_CFWL_COMBOBOX_H_
#include <memory>
#include "xfa/fwl/cfwl_comboboxproxy.h"
#include "xfa/fwl/cfwl_comboedit.h"
#include "xfa/fwl/cfwl_combolist.h"
#include "xfa/fwl/cfwl_form.h"
#include "xfa/fwl/cfwl_listbox.h"
#include "xfa/fxgraphics/cxfa_graphics.h"
class CFWL_WidgetProperties;
class CFWL_ComboBox;
class CFWL_ComboBoxProxy;
class CFWL_FormProxy;
class CFWL_ListBox;
class CFWL_Widget;
#define FWL_STYLEEXT_CMB_DropDown (1L << 0)
#define FWL_STYLEEXT_CMB_Sort (1L << 1)
#define FWL_STYLEEXT_CMB_OwnerDraw (1L << 3)
#define FWL_STYLEEXT_CMB_EditHNear 0
#define FWL_STYLEEXT_CMB_EditHCenter (1L << 4)
#define FWL_STYLEEXT_CMB_EditVNear 0
#define FWL_STYLEEXT_CMB_EditVCenter (1L << 6)
#define FWL_STYLEEXT_CMB_EditVFar (2L << 6)
#define FWL_STYLEEXT_CMB_EditJustified (1L << 8)
#define FWL_STYLEEXT_CMB_EditHAlignMask (3L << 4)
#define FWL_STYLEEXT_CMB_EditVAlignMask (3L << 6)
#define FWL_STYLEEXT_CMB_ListItemLeftAlign 0
#define FWL_STYLEEXT_CMB_ListItemCenterAlign (1L << 10)
#define FWL_STYLEEXT_CMB_ListItemAlignMask (3L << 10)
#define FWL_STYLEEXT_CMB_ReadOnly (1L << 13)
class CFWL_ComboBox : public CFWL_Widget {
public:
explicit CFWL_ComboBox(const CFWL_App* pApp);
~CFWL_ComboBox() override;
// CFWL_Widget
FWL_Type GetClassID() const override;
void ModifyStylesEx(uint32_t dwStylesExAdded,
uint32_t dwStylesExRemoved) override;
void SetStates(uint32_t dwStates) override;
void RemoveStates(uint32_t dwStates) override;
void Update() override;
FWL_WidgetHit HitTest(const CFX_PointF& point) override;
void DrawWidget(CXFA_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(CXFA_Graphics* pGraphics,
const CFX_Matrix* pMatrix) override;
CFX_WideString GetTextByIndex(int32_t iIndex) const;
int32_t GetCurSel() const { return m_iCurSel; }
void SetCurSel(int32_t iSel);
void AddString(const CFX_WideStringC& wsText);
void RemoveAt(int32_t iIndex);
void RemoveAll();
void SetEditText(const CFX_WideString& wsText);
CFX_WideString GetEditText() const;
void OpenDropDownList(bool bActivate);
bool EditCanUndo() const { return m_pEdit->CanUndo(); }
bool EditCanRedo() const { return m_pEdit->CanRedo(); }
bool EditUndo() { return m_pEdit->Undo(); }
bool EditRedo() { return m_pEdit->Redo(); }
bool EditCanCopy() const { return m_pEdit->CountSelRanges() > 0; }
bool EditCanCut() const {
if (m_pEdit->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly)
return false;
return EditCanCopy();
}
bool EditCanSelectAll() const { return m_pEdit->GetTextLength() > 0; }
bool EditCopy(CFX_WideString& wsCopy) const { return m_pEdit->Copy(wsCopy); }
bool EditCut(CFX_WideString& wsCut) { return m_pEdit->Cut(wsCut); }
bool EditPaste(const CFX_WideString& wsPaste) {
return m_pEdit->Paste(wsPaste);
}
void EditSelectAll() { m_pEdit->AddSelRange(0); }
void EditDelete() { m_pEdit->ClearText(); }
void EditDeSelect() { m_pEdit->ClearSelections(); }
CFX_RectF GetBBox() const;
void EditModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved);
void DrawStretchHandler(CXFA_Graphics* pGraphics, const CFX_Matrix* pMatrix);
bool IsDropListVisible() const {
return m_pComboBoxProxy &&
!(m_pComboBoxProxy->GetStates() & FWL_WGTSTATE_Invisible);
}
void ShowDropList(bool bActivate);
CFWL_ComboEdit* GetComboEdit() const { return m_pEdit.get(); }
void ProcessSelChanged(bool bLButtonUp);
int32_t GetCurrentSelection() const { return m_iCurSel; }
private:
bool IsDropDownStyle() const {
return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CMB_DropDown);
}
void MatchEditText();
void SyncEditText(int32_t iListItem);
void Layout();
void ResetTheme();
void ResetEditAlignment();
void ResetListItemAlignment();
void InitProxyForm();
void OnFocusChanged(CFWL_Message* pMsg, bool bSet);
void OnLButtonDown(CFWL_MessageMouse* pMsg);
void OnLButtonUp(CFWL_MessageMouse* pMsg);
void OnMouseMove(CFWL_MessageMouse* pMsg);
void OnMouseLeave(CFWL_MessageMouse* pMsg);
void OnKey(CFWL_MessageKey* pMsg);
void DoSubCtrlKey(CFWL_MessageKey* pMsg);
void DisForm_InitComboList();
void DisForm_InitComboEdit();
void DisForm_ShowDropList(bool bActivate);
bool DisForm_IsDropListVisible() const {
return !(m_pListBox->GetStates() & FWL_WGTSTATE_Invisible);
}
void DisForm_ModifyStylesEx(uint32_t dwStylesExAdded,
uint32_t dwStylesExRemoved);
void DisForm_Update();
FWL_WidgetHit DisForm_HitTest(const CFX_PointF& point);
void DisForm_DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix* pMatrix);
CFX_RectF DisForm_GetBBox() const;
void DisForm_Layout();
void DisForm_OnProcessMessage(CFWL_Message* pMessage);
void DisForm_OnLButtonDown(CFWL_MessageMouse* pMsg);
void DisForm_OnFocusChanged(CFWL_Message* pMsg, bool bSet);
void DisForm_OnKey(CFWL_MessageKey* pMsg);
CFX_RectF m_rtClient;
CFX_RectF m_rtContent;
CFX_RectF m_rtBtn;
CFX_RectF m_rtList;
CFX_RectF m_rtProxy;
CFX_RectF m_rtHandler;
std::unique_ptr<CFWL_ComboEdit> m_pEdit;
std::unique_ptr<CFWL_ComboList> m_pListBox;
CFWL_ComboBoxProxy* m_pComboBoxProxy; // Can this be a unique_ptr?
bool m_bLButtonDown;
int32_t m_iCurSel;
int32_t m_iBtnState;
};
#endif // XFA_FWL_CFWL_COMBOBOX_H_
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