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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/univ/checklst.cpp | |
3 | // Purpose: wxCheckListBox implementation | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 12.09.00 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // ============================================================================ | |
13 | // declarations | |
14 | // ============================================================================ | |
15 | ||
16 | // ---------------------------------------------------------------------------- | |
17 | // headers | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #include "wx/wxprec.h" | |
21 | ||
22 | #ifdef __BORLANDC__ | |
23 | #pragma hdrstop | |
24 | #endif | |
25 | ||
26 | #if wxUSE_CHECKLISTBOX | |
27 | ||
28 | #include "wx/checklst.h" | |
29 | ||
30 | #ifndef WX_PRECOMP | |
31 | #include "wx/log.h" | |
32 | #include "wx/dcclient.h" | |
33 | #include "wx/validate.h" | |
34 | #endif | |
35 | ||
36 | #include "wx/univ/renderer.h" | |
37 | #include "wx/univ/inphand.h" | |
38 | #include "wx/univ/theme.h" | |
39 | ||
40 | // ---------------------------------------------------------------------------- | |
41 | // wxStdCheckListBoxInputHandler | |
42 | // ---------------------------------------------------------------------------- | |
43 | ||
44 | class WXDLLEXPORT wxStdCheckListboxInputHandler : public wxStdInputHandler | |
45 | { | |
46 | public: | |
47 | wxStdCheckListboxInputHandler(wxInputHandler *inphand); | |
48 | ||
49 | virtual bool HandleKey(wxInputConsumer *consumer, | |
50 | const wxKeyEvent& event, | |
51 | bool pressed); | |
52 | virtual bool HandleMouse(wxInputConsumer *consumer, | |
53 | const wxMouseEvent& event); | |
54 | }; | |
55 | ||
56 | // ============================================================================ | |
57 | // implementation of wxCheckListBox | |
58 | // ============================================================================ | |
59 | ||
60 | IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox) | |
61 | ||
62 | // ---------------------------------------------------------------------------- | |
63 | // creation | |
64 | // ---------------------------------------------------------------------------- | |
65 | ||
66 | void wxCheckListBox::Init() | |
67 | { | |
68 | } | |
69 | ||
70 | wxCheckListBox::wxCheckListBox(wxWindow *parent, | |
71 | wxWindowID id, | |
72 | const wxPoint &pos, | |
73 | const wxSize &size, | |
74 | const wxArrayString& choices, | |
75 | long style, | |
76 | const wxValidator& validator, | |
77 | const wxString &name) | |
78 | { | |
79 | Init(); | |
80 | ||
81 | Create(parent, id, pos, size, choices, style, validator, name); | |
82 | } | |
83 | ||
84 | bool wxCheckListBox::Create(wxWindow *parent, | |
85 | wxWindowID id, | |
86 | const wxPoint &pos, | |
87 | const wxSize &size, | |
88 | const wxArrayString& choices, | |
89 | long style, | |
90 | const wxValidator& validator, | |
91 | const wxString &name) | |
92 | { | |
93 | wxCArrayString chs(choices); | |
94 | ||
95 | return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(), | |
96 | style, validator, name); | |
97 | } | |
98 | ||
99 | bool wxCheckListBox::Create(wxWindow *parent, | |
100 | wxWindowID id, | |
101 | const wxPoint &pos, | |
102 | const wxSize &size, | |
103 | int n, | |
104 | const wxString choices[], | |
105 | long style, | |
106 | const wxValidator& validator, | |
107 | const wxString &name) | |
108 | { | |
109 | if ( !wxListBox::Create(parent, id, pos, size, | |
110 | n, choices, style, validator, name) ) | |
111 | return false; | |
112 | ||
113 | CreateInputHandler(wxINP_HANDLER_CHECKLISTBOX); | |
114 | ||
115 | return true; | |
116 | } | |
117 | ||
118 | // ---------------------------------------------------------------------------- | |
119 | // wxCheckListBox functions | |
120 | // ---------------------------------------------------------------------------- | |
121 | ||
122 | bool wxCheckListBox::IsChecked(unsigned int item) const | |
123 | { | |
124 | wxCHECK_MSG( IsValid(item), false, | |
125 | _T("invalid index in wxCheckListBox::IsChecked") ); | |
126 | ||
127 | return m_checks[item] != 0; | |
128 | } | |
129 | ||
130 | void wxCheckListBox::Check(unsigned int item, bool check) | |
131 | { | |
132 | wxCHECK_RET( IsValid(item), | |
133 | _T("invalid index in wxCheckListBox::Check") ); | |
134 | ||
135 | // intermediate var is needed to avoid compiler warning with VC++ | |
136 | bool isChecked = m_checks[item] != 0; | |
137 | if ( check != isChecked ) | |
138 | { | |
139 | m_checks[item] = check; | |
140 | ||
141 | RefreshItem(item); | |
142 | } | |
143 | } | |
144 | ||
145 | // ---------------------------------------------------------------------------- | |
146 | // methods forwarded to wxListBox | |
147 | // ---------------------------------------------------------------------------- | |
148 | ||
149 | void wxCheckListBox::DoDeleteOneItem(unsigned int n) | |
150 | { | |
151 | wxListBox::DoDeleteOneItem(n); | |
152 | ||
153 | m_checks.RemoveAt(n); | |
154 | } | |
155 | ||
156 | void wxCheckListBox::OnItemInserted(unsigned int pos) | |
157 | { | |
158 | m_checks.Insert(false, pos); | |
159 | } | |
160 | ||
161 | void wxCheckListBox::DoClear() | |
162 | { | |
163 | m_checks.Empty(); | |
164 | } | |
165 | ||
166 | // ---------------------------------------------------------------------------- | |
167 | // drawing | |
168 | // ---------------------------------------------------------------------------- | |
169 | ||
170 | wxSize wxCheckListBox::DoGetBestClientSize() const | |
171 | { | |
172 | wxSize size = wxListBox::DoGetBestClientSize(); | |
173 | size.x += GetRenderer()->GetCheckBitmapSize().x; | |
174 | ||
175 | return size; | |
176 | } | |
177 | ||
178 | void wxCheckListBox::DoDrawRange(wxControlRenderer *renderer, | |
179 | int itemFirst, int itemLast) | |
180 | { | |
181 | renderer->DrawCheckItems(this, itemFirst, itemLast); | |
182 | } | |
183 | ||
184 | // ---------------------------------------------------------------------------- | |
185 | // actions | |
186 | // ---------------------------------------------------------------------------- | |
187 | ||
188 | bool wxCheckListBox::PerformAction(const wxControlAction& action, | |
189 | long numArg, | |
190 | const wxString& strArg) | |
191 | { | |
192 | if ( action == wxACTION_CHECKLISTBOX_TOGGLE ) | |
193 | { | |
194 | int sel = (int)numArg; | |
195 | if ( sel == -1 ) | |
196 | { | |
197 | sel = GetSelection(); | |
198 | } | |
199 | ||
200 | if ( sel != -1 ) | |
201 | { | |
202 | Check(sel, !IsChecked(sel)); | |
203 | ||
204 | SendEvent(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, sel); | |
205 | } | |
206 | } | |
207 | else | |
208 | { | |
209 | return wxListBox::PerformAction(action, numArg, strArg); | |
210 | } | |
211 | ||
212 | return true; | |
213 | } | |
214 | ||
215 | /* static */ | |
216 | wxInputHandler *wxCheckListBox::GetStdInputHandler(wxInputHandler *handlerDef) | |
217 | { | |
218 | static wxStdCheckListboxInputHandler s_handler(handlerDef); | |
219 | ||
220 | return &s_handler; | |
221 | } | |
222 | ||
223 | // ---------------------------------------------------------------------------- | |
224 | // wxStdCheckListboxInputHandler | |
225 | // ---------------------------------------------------------------------------- | |
226 | ||
227 | wxStdCheckListboxInputHandler:: | |
228 | wxStdCheckListboxInputHandler(wxInputHandler *inphand) | |
229 | : wxStdInputHandler(wxListBox::GetStdInputHandler(inphand)) | |
230 | { | |
231 | } | |
232 | ||
233 | bool wxStdCheckListboxInputHandler::HandleKey(wxInputConsumer *consumer, | |
234 | const wxKeyEvent& event, | |
235 | bool pressed) | |
236 | { | |
237 | if ( pressed && (event.GetKeyCode() == WXK_SPACE) ) | |
238 | consumer->PerformAction(wxACTION_CHECKLISTBOX_TOGGLE); | |
239 | ||
240 | return wxStdInputHandler::HandleKey(consumer, event, pressed); | |
241 | } | |
242 | ||
243 | bool wxStdCheckListboxInputHandler::HandleMouse(wxInputConsumer *consumer, | |
244 | const wxMouseEvent& event) | |
245 | { | |
246 | if ( event.LeftDown() || event.LeftDClick() ) | |
247 | { | |
248 | wxCheckListBox *lbox = wxStaticCast(consumer->GetInputWindow(), wxCheckListBox); | |
249 | int x, y; | |
250 | ||
251 | wxPoint pt = event.GetPosition(); | |
252 | pt -= consumer->GetInputWindow()->GetClientAreaOrigin(); | |
253 | lbox->CalcUnscrolledPosition(pt.x, pt.y, &x, &y); | |
254 | ||
255 | wxRenderer *renderer = lbox->GetRenderer(); | |
256 | x -= renderer->GetCheckItemMargin(); | |
257 | ||
258 | int item = y / lbox->GetLineHeight(); | |
259 | if ( x >= 0 && | |
260 | x < renderer->GetCheckBitmapSize().x && | |
261 | item >= 0 && | |
262 | (unsigned int)item < lbox->GetCount() ) | |
263 | { | |
264 | lbox->PerformAction(wxACTION_CHECKLISTBOX_TOGGLE, item); | |
265 | ||
266 | return true; | |
267 | } | |
268 | } | |
269 | ||
270 | return wxStdInputHandler::HandleMouse(consumer, event); | |
271 | } | |
272 | ||
273 | #endif // wxUSE_CHECKLISTBOX |