126 lines
4.5 KiB
C
126 lines
4.5 KiB
C
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// Copyright 2014 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FWL_CFWL_COMBOBOX_H_
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#define XFA_FWL_CFWL_COMBOBOX_H_
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#include "xfa/fgas/graphics/cfgas_gegraphics.h"
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#include "xfa/fwl/cfwl_comboedit.h"
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#include "xfa/fwl/cfwl_combolist.h"
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#include "xfa/fwl/cfwl_listbox.h"
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#include "xfa/fwl/cfwl_widget.h"
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#define FWL_STYLEEXT_CMB_DropDown (1L << 0)
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#define FWL_STYLEEXT_CMB_Sort (1L << 1)
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#define FWL_STYLEEXT_CMB_OwnerDraw (1L << 3)
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#define FWL_STYLEEXT_CMB_EditHNear 0
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#define FWL_STYLEEXT_CMB_EditHCenter (1L << 4)
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#define FWL_STYLEEXT_CMB_EditVNear 0
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#define FWL_STYLEEXT_CMB_EditVCenter (1L << 6)
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#define FWL_STYLEEXT_CMB_EditVFar (2L << 6)
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#define FWL_STYLEEXT_CMB_EditJustified (1L << 8)
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#define FWL_STYLEEXT_CMB_EditHAlignMask (3L << 4)
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#define FWL_STYLEEXT_CMB_EditVAlignMask (3L << 6)
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#define FWL_STYLEEXT_CMB_ListItemLeftAlign 0
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#define FWL_STYLEEXT_CMB_ListItemCenterAlign (1L << 10)
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#define FWL_STYLEEXT_CMB_ListItemAlignMask (3L << 10)
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#define FWL_STYLEEXT_CMB_ReadOnly (1L << 13)
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class CFWL_ComboBox final : public CFWL_Widget {
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public:
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CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED;
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~CFWL_ComboBox() override;
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// CFWL_Widget
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void Trace(cppgc::Visitor* visitor) const override;
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FWL_Type GetClassID() const override;
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void ModifyStyleExts(uint32_t dwStyleExtsAdded,
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uint32_t dwStyleExtsRemoved) override;
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void SetStates(uint32_t dwStates) override;
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void RemoveStates(uint32_t dwStates) override;
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void Update() override;
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FWL_WidgetHit HitTest(const CFX_PointF& point) override;
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void DrawWidget(CFGAS_GEGraphics* pGraphics,
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const CFX_Matrix& matrix) override;
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void OnProcessMessage(CFWL_Message* pMessage) override;
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void OnProcessEvent(CFWL_Event* pEvent) override;
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void OnDrawWidget(CFGAS_GEGraphics* pGraphics,
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const CFX_Matrix& matrix) override;
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WideString GetTextByIndex(int32_t iIndex) const;
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int32_t GetCurSel() const { return m_iCurSel; }
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void SetCurSel(int32_t iSel);
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void AddString(const WideString& wsText);
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void RemoveAt(int32_t iIndex);
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void RemoveAll();
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void SetEditText(const WideString& wsText);
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WideString GetEditText() const;
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bool EditCanUndo() const { return m_pEdit->CanUndo(); }
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bool EditCanRedo() const { return m_pEdit->CanRedo(); }
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bool EditUndo() { return m_pEdit->Undo(); }
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bool EditRedo() { return m_pEdit->Redo(); }
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bool EditCanCopy() const { return m_pEdit->HasSelection(); }
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bool EditCanCut() const {
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if (m_pEdit->GetStyleExts() & FWL_STYLEEXT_EDT_ReadOnly)
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return false;
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return EditCanCopy();
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}
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bool EditCanSelectAll() const { return m_pEdit->GetTextLength() > 0; }
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absl::optional<WideString> EditCopy() const { return m_pEdit->Copy(); }
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absl::optional<WideString> EditCut() { return m_pEdit->Cut(); }
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bool EditPaste(const WideString& wsPaste) { return m_pEdit->Paste(wsPaste); }
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void EditSelectAll() { m_pEdit->SelectAll(); }
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void EditDelete() { m_pEdit->ClearText(); }
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void EditDeSelect() { m_pEdit->ClearSelection(); }
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CFX_RectF GetBBox() const;
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void EditModifyStyleExts(uint32_t dwStyleExtsAdded,
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uint32_t dwStyleExtsRemoved);
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void ShowDropDownList();
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void HideDropDownList();
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CFWL_ComboEdit* GetComboEdit() const { return m_pEdit; }
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void ProcessSelChanged(bool bLButtonUp);
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int32_t GetCurrentSelection() const { return m_iCurSel; }
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private:
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explicit CFWL_ComboBox(CFWL_App* pApp);
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bool IsDropDownStyle() const {
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return !!(GetStyleExts() & FWL_STYLEEXT_CMB_DropDown);
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}
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void MatchEditText();
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void SyncEditText(int32_t iListItem);
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void Layout();
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void ResetEditAlignment();
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void ResetListItemAlignment();
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void GetPopupPos(float fMinHeight,
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float fMaxHeight,
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const CFX_RectF& rtAnchor,
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CFX_RectF* pPopupRect);
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void OnLButtonUp(CFWL_MessageMouse* pMsg);
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bool IsDropListVisible() const { return m_pListBox->IsVisible(); }
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void OnLButtonDown(CFWL_MessageMouse* pMsg);
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void OnFocusGained();
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void OnFocusLost();
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void OnKey(CFWL_MessageKey* pMsg);
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void RepaintInflatedListBoxRect();
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CFX_RectF m_ClientRect;
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CFX_RectF m_ContentRect;
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CFX_RectF m_BtnRect;
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cppgc::Member<CFWL_ComboEdit> const m_pEdit;
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cppgc::Member<CFWL_ComboList> const m_pListBox;
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int32_t m_iCurSel = -1;
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Mask<CFWL_PartState> m_iBtnState = CFWL_PartState::kNormal;
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};
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#endif // XFA_FWL_CFWL_COMBOBOX_H_
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