summaryrefslogtreecommitdiff
path: root/xfa/fwl/cfwl_combobox.h
blob: a5ea2d08761179e54bef4838bdfb4d906dabecd5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
// 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_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_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& matrix) 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& matrix) override;

  WideString GetTextByIndex(int32_t iIndex) const;
  int32_t GetCurSel() const { return m_iCurSel; }
  void SetCurSel(int32_t iSel);

  void AddString(const WideStringView& wsText);
  void RemoveAt(int32_t iIndex);
  void RemoveAll();

  void SetEditText(const WideString& wsText);
  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->HasSelection(); }
  bool EditCanCut() const {
    if (m_pEdit->GetStylesEx() & FWL_STYLEEXT_EDT_ReadOnly)
      return false;
    return EditCanCopy();
  }
  bool EditCanSelectAll() const { return m_pEdit->GetTextLength() > 0; }
  Optional<WideString> EditCopy() const { return m_pEdit->Copy(); }
  Optional<WideString> EditCut() { return m_pEdit->Cut(); }
  bool EditPaste(const WideString& wsPaste) { return m_pEdit->Paste(wsPaste); }
  void EditSelectAll() { m_pEdit->SelectAll(); }
  void EditDelete() { m_pEdit->ClearText(); }
  void EditDeSelect() { m_pEdit->ClearSelection(); }

  CFX_RectF GetBBox() const;
  void EditModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved);

  void DrawStretchHandler(CXFA_Graphics* pGraphics, const CFX_Matrix* pMatrix);
  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 GetPopupPos(float fMinHeight,
                   float fMaxHeight,
                   const CFX_RectF& rtAnchor,
                   CFX_RectF* pPopupRect);
  void OnLButtonUp(CFWL_MessageMouse* pMsg);

  void InitComboList();
  void InitComboEdit();
  bool IsDropListVisible() const {
    return !(m_pListBox->GetStates() & FWL_WGTSTATE_Invisible);
  }
  void OnLButtonDown(CFWL_MessageMouse* pMsg);
  void OnFocusChanged(CFWL_Message* pMsg, bool bSet);
  void OnKey(CFWL_MessageKey* pMsg);

  CFX_RectF m_rtClient;
  CFX_RectF m_rtContent;
  CFX_RectF m_rtBtn;
  std::unique_ptr<CFWL_ComboEdit> m_pEdit;
  std::unique_ptr<CFWL_ComboList> m_pListBox;
  int32_t m_iCurSel;
  int32_t m_iBtnState;
};

#endif  // XFA_FWL_CFWL_COMBOBOX_H_