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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: checklst.cpp | |
3 | // Purpose: implementation of wxCheckListBox class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // headers & declarations | |
14 | // ============================================================================ | |
15 | ||
16 | #ifdef __GNUG__ | |
17 | #pragma implementation "checklst.h" | |
18 | #endif | |
19 | ||
20 | #include "wx/defs.h" | |
21 | ||
22 | #include "wx/checklst.h" | |
23 | ||
24 | // ============================================================================ | |
25 | // implementation | |
26 | // ============================================================================ | |
27 | ||
28 | IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox) | |
29 | ||
30 | // ---------------------------------------------------------------------------- | |
31 | // implementation of wxCheckListBox class | |
32 | // ---------------------------------------------------------------------------- | |
33 | ||
34 | // define event table | |
35 | // ------------------ | |
36 | BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox) | |
37 | END_EVENT_TABLE() | |
38 | ||
39 | // control creation | |
40 | // ---------------- | |
41 | ||
42 | static const wxString prefixChecked = "[x] "; | |
43 | static const wxString prefixUnchecked = "[ ] "; | |
44 | static const char checkChar = 'x', uncheckChar = ' '; | |
45 | ||
46 | static inline const wxString& Prefix(bool checked) | |
47 | { return checked ? prefixChecked : prefixUnchecked; } | |
48 | static inline bool IsChecked(const wxString& s) | |
49 | { wxASSERT(s.length() >=4); return s[1] == checkChar; } | |
50 | ||
51 | static void CopyStringsAddingPrefix(const wxArrayString& orig, | |
52 | wxArrayString& copy) | |
53 | { | |
54 | copy.Clear(); | |
55 | ||
56 | for(size_t i = 0; i < orig.GetCount(); ++i ) | |
57 | copy.Add( Prefix(FALSE) + orig[i] ); | |
58 | } | |
59 | ||
60 | // def ctor: use Create() to really create the control | |
61 | wxCheckListBox::wxCheckListBox() : wxCheckListBoxBase() | |
62 | { | |
63 | } | |
64 | ||
65 | // ctor which creates the associated control | |
66 | wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id, | |
67 | const wxPoint& pos, const wxSize& size, | |
68 | int nStrings, const wxString choices[], | |
69 | long style, const wxValidator& val, | |
70 | const wxString& name) | |
71 | : wxCheckListBoxBase() | |
72 | { | |
73 | Create(parent, id, pos, size, nStrings, choices, | |
74 | style, val, name); | |
75 | } | |
76 | ||
77 | bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id, | |
78 | const wxPoint& pos, | |
79 | const wxSize& size, | |
80 | int n, const wxString choices[], | |
81 | long style, | |
82 | const wxValidator& validator, | |
83 | const wxString& name) | |
84 | { | |
85 | // wxListBox::Create calls set, which adds the prefixes | |
86 | bool retVal = wxListBox::Create(parent, id, pos, size, n, choices, | |
87 | style, validator, name); | |
88 | return retVal; | |
89 | } | |
90 | ||
91 | // check items | |
92 | // ----------- | |
93 | ||
94 | bool wxCheckListBox::IsChecked(size_t uiIndex) const | |
95 | { | |
96 | return ::IsChecked(wxListBox::GetString(uiIndex)); | |
97 | } | |
98 | ||
99 | void wxCheckListBox::Check(size_t uiIndex, bool bCheck) | |
100 | { | |
101 | wxString label = wxListBox::GetString(uiIndex); | |
102 | if(::IsChecked(label) == bCheck) return; | |
103 | label[1u] = bCheck ? checkChar : uncheckChar; | |
104 | wxListBox::SetString(uiIndex, label); | |
105 | } | |
106 | ||
107 | void wxCheckListBox::DoToggleItem( int n, int x ) | |
108 | { | |
109 | if( x < 23 ) | |
110 | { | |
111 | wxString label = wxListBox::GetString(n); | |
112 | label[1u] = (!::IsChecked(label)) ? checkChar : uncheckChar; | |
113 | wxListBox::SetString(n, label); | |
114 | ||
115 | wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId()); | |
116 | if( HasClientObjectData() ) | |
117 | event.SetClientObject( GetClientObject(n) ); | |
118 | else if( HasClientUntypedData() ) | |
119 | event.SetClientData( GetClientData(n) ); | |
120 | event.m_commandInt = n; | |
121 | event.m_extraLong = TRUE; | |
122 | event.SetEventObject(this); | |
123 | event.SetString( GetString( n ) ); | |
124 | ||
125 | GetEventHandler()->ProcessEvent(event); | |
126 | } | |
127 | } | |
128 | ||
129 | int wxCheckListBox::DoAppend(const wxString& item) | |
130 | { | |
131 | return wxListBox::DoAppend( Prefix(FALSE) + item ); | |
132 | } | |
133 | ||
134 | int wxCheckListBox::FindString(const wxString& s) const | |
135 | { | |
136 | int n1 = wxListBox::FindString(Prefix(FALSE) + s); | |
137 | int n2 = wxListBox::FindString(Prefix(TRUE) + s); | |
138 | int min = wxMin(n1, n2), max = wxMax(n1, n2); | |
139 | ||
140 | // why this works: | |
141 | // n1 == -1, n2 == -1 => return -1 OK | |
142 | // n1 != -1 || n2 != -1 => min == -1 => return the other one | |
143 | // both != -1 => return the first one. | |
144 | if( min == -1 ) return max; | |
145 | return min; | |
146 | } | |
147 | ||
148 | void wxCheckListBox::SetString(int n, const wxString& s) | |
149 | { | |
150 | wxListBox::SetString( n, Prefix(IsChecked(n)) + s ); | |
151 | } | |
152 | ||
153 | wxString wxCheckListBox::GetString(int n) const | |
154 | { | |
155 | return wxListBox::GetString(n).substr(4); | |
156 | } | |
157 | ||
158 | void wxCheckListBox::DoInsertItems(const wxArrayString& items, int pos) | |
159 | { | |
160 | wxArrayString copy; | |
161 | CopyStringsAddingPrefix(items, copy); | |
162 | wxListBox::DoInsertItems(copy, pos); | |
163 | } | |
164 | ||
165 | void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData) | |
166 | { | |
167 | wxArrayString copy; | |
168 | CopyStringsAddingPrefix(items, copy); | |
169 | wxListBox::DoSetItems(copy, clientData); | |
170 | } |