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0e320a79 DW |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: choice.cpp | |
3 | // Purpose: wxChoice | |
37f214d5 | 4 | // Author: David Webster |
0e320a79 | 5 | // Modified by: |
37f214d5 | 6 | // Created: 10/13/99 |
0e320a79 | 7 | // RCS-ID: $Id$ |
37f214d5 DW |
8 | // Copyright: (c) David Webster |
9 | // Licence: wxWindows licence | |
0e320a79 DW |
10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
37f214d5 DW |
12 | // For compilers that support precompilation, includes "wx.h". |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifndef WX_PRECOMP | |
16 | #include "wx/choice.h" | |
17 | #include "wx/utils.h" | |
18 | #include "wx/log.h" | |
0e320a79 DW |
19 | #endif |
20 | ||
37f214d5 | 21 | #include "wx/os2/private.h" |
0e320a79 | 22 | |
0e320a79 | 23 | IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl) |
0e320a79 | 24 | |
37f214d5 DW |
25 | bool wxChoice::Create(wxWindow *parent, |
26 | wxWindowID id, | |
27 | const wxPoint& pos, | |
28 | const wxSize& size, | |
29 | int n, const wxString choices[], | |
30 | long style, | |
5d4b632b | 31 | #if wxUSE_VALIDATORS |
37f214d5 | 32 | const wxValidator& validator, |
5d4b632b | 33 | #endif |
37f214d5 | 34 | const wxString& name) |
0e320a79 | 35 | { |
37f214d5 DW |
36 | if ( !CreateControl(parent, id, pos, size, style, validator, name) ) |
37 | return FALSE; | |
38 | // TODO: | |
39 | /* | |
40 | long msStyle = WS_CHILD | CBS_DROPDOWNLIST | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL; | |
41 | if ( style & wxCB_SORT ) | |
42 | msStyle |= CBS_SORT; | |
43 | ||
44 | // the experience shows that wxChoice vs. wxComboBox distinction confuses | |
45 | // quite a few people - try to help them | |
46 | wxASSERT_MSG( !(style & wxCB_DROPDOWN) && | |
47 | !(style & wxCB_READONLY) && | |
48 | !(style & wxCB_SIMPLE), | |
49 | wxT("this style flag is ignored by wxChoice, you " | |
50 | "probably want to use a wxComboBox") ); | |
0e320a79 | 51 | |
37f214d5 DW |
52 | if ( !OS2CreateControl(wxT("COMBOBOX"), msStyle) ) |
53 | return FALSE; | |
0e320a79 | 54 | |
37f214d5 DW |
55 | for ( int i = 0; i < n; i++ ) |
56 | { | |
57 | Append(choices[i]); | |
58 | } | |
59 | */ | |
60 | SetSize(pos.x, pos.y, size.x, size.y); | |
0e320a79 | 61 | |
37f214d5 | 62 | return TRUE; |
0e320a79 DW |
63 | } |
64 | ||
37f214d5 DW |
65 | // ---------------------------------------------------------------------------- |
66 | // adding/deleting items to/from the list | |
67 | // ---------------------------------------------------------------------------- | |
68 | ||
69 | int wxChoice::DoAppend(const wxString& item) | |
0e320a79 | 70 | { |
37f214d5 DW |
71 | // TODO: |
72 | /* | |
73 | int n = (int)SendMessage(GetHwnd(), CB_ADDSTRING, 0, (LONG)item.c_str()); | |
74 | if ( n == CB_ERR ) | |
75 | { | |
76 | wxLogLastError("SendMessage(CB_ADDSTRING)"); | |
77 | } | |
78 | */ | |
79 | return 0; //n | |
0e320a79 DW |
80 | } |
81 | ||
82 | void wxChoice::Delete(int n) | |
83 | { | |
37f214d5 DW |
84 | wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") ); |
85 | ||
86 | // TODO: SendMessage(GetHwnd(), CB_DELETESTRING, n, 0); | |
0e320a79 DW |
87 | } |
88 | ||
89 | void wxChoice::Clear() | |
90 | { | |
37f214d5 | 91 | // TODO: SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0); |
0e320a79 DW |
92 | } |
93 | ||
37f214d5 DW |
94 | // ---------------------------------------------------------------------------- |
95 | // selection | |
96 | // ---------------------------------------------------------------------------- | |
97 | ||
0e320a79 DW |
98 | int wxChoice::GetSelection() const |
99 | { | |
37f214d5 | 100 | // TODO: return (int)SendMessage(GetHwnd(), CB_GETCURSEL, 0, 0); |
0e320a79 DW |
101 | return 0; |
102 | } | |
103 | ||
104 | void wxChoice::SetSelection(int n) | |
105 | { | |
37f214d5 DW |
106 | // TODO: SendMessage(GetHwnd(), CB_SETCURSEL, n, 0); |
107 | } | |
108 | ||
109 | // ---------------------------------------------------------------------------- | |
110 | // string list functions | |
111 | // ---------------------------------------------------------------------------- | |
112 | ||
113 | int wxChoice::GetCount() const | |
114 | { | |
115 | // TODO: return (int)SendMessage(GetHwnd(), CB_GETCOUNT, 0, 0); | |
116 | return 0; | |
0e320a79 DW |
117 | } |
118 | ||
119 | int wxChoice::FindString(const wxString& s) const | |
120 | { | |
37f214d5 DW |
121 | // TODO: |
122 | /* | |
123 | int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT, | |
124 | (WPARAM)-1, (LPARAM)s.c_str()); | |
125 | ||
126 | return pos == LB_ERR ? wxNOT_FOUND : pos; | |
127 | */ | |
0e320a79 DW |
128 | return 0; |
129 | } | |
130 | ||
dcd307ee DW |
131 | void wxChoice::SetString(int n, const wxString& s) |
132 | { | |
133 | wxFAIL_MSG(wxT("not implemented")); | |
134 | ||
135 | #if 0 // should do this, but no Insert() so far | |
136 | Delete(n); | |
137 | Insert(n + 1, s); | |
138 | #endif | |
139 | } | |
140 | ||
0e320a79 DW |
141 | wxString wxChoice::GetString(int n) const |
142 | { | |
37f214d5 DW |
143 | size_t len = 0; // TODO: (size_t)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0); |
144 | wxString str = ""; | |
145 | // TODO: | |
146 | /* | |
147 | if (len) { | |
148 | if ( ::SendMessage(GetHwnd(), CB_GETLBTEXT, n, | |
149 | (LPARAM)str.GetWriteBuf(len)) == CB_ERR ) { | |
150 | wxLogLastError("SendMessage(CB_GETLBTEXT)"); | |
151 | } | |
152 | str.UngetWriteBuf(); | |
153 | } | |
154 | */ | |
155 | return str; | |
0e320a79 DW |
156 | } |
157 | ||
37f214d5 DW |
158 | // ---------------------------------------------------------------------------- |
159 | // client data | |
160 | // ---------------------------------------------------------------------------- | |
161 | ||
dcd307ee | 162 | void wxChoice::DoSetItemClientData( int n, void* clientData ) |
0e320a79 | 163 | { |
37f214d5 DW |
164 | // TODO: |
165 | /* | |
166 | if ( SendMessage(GetHwnd(), CB_SETITEMDATA, n, (LPARAM)clientData) == CB_ERR ) | |
167 | { | |
168 | wxLogLastError(wxT("CB_SETITEMDATA")); | |
169 | } | |
170 | */ | |
0e320a79 DW |
171 | } |
172 | ||
dcd307ee | 173 | void* wxChoice::DoGetItemClientData( int n ) const |
0e320a79 | 174 | { |
37f214d5 DW |
175 | // TODO: |
176 | /* | |
177 | LPARAM rc = SendMessage(GetHwnd(), CB_GETITEMDATA, n, 0); | |
178 | if ( rc == CB_ERR ) | |
179 | { | |
180 | wxLogLastError(wxT("CB_GETITEMDATA")); | |
181 | ||
182 | // unfortunately, there is no way to return an error code to the user | |
183 | rc = (LPARAM) NULL; | |
184 | } | |
185 | ||
186 | return (void *)rc; | |
187 | */ | |
188 | return NULL; | |
0e320a79 DW |
189 | } |
190 | ||
dcd307ee | 191 | void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData ) |
0e320a79 | 192 | { |
e6ebb514 | 193 | DoSetItemClientData(n, clientData); |
0e320a79 DW |
194 | } |
195 | ||
dcd307ee | 196 | wxClientData* wxChoice::DoGetItemClientObject( int n ) const |
0e320a79 | 197 | { |
e6ebb514 | 198 | return (wxClientData *)DoGetItemClientData(n); |
37f214d5 DW |
199 | } |
200 | ||
201 | // ---------------------------------------------------------------------------- | |
202 | // wxOS2 specific helpers | |
203 | // ---------------------------------------------------------------------------- | |
204 | ||
205 | void wxChoice::DoSetSize(int x, int y, | |
206 | int width, int height, | |
207 | int sizeFlags) | |
208 | { | |
209 | // Ignore height parameter because height doesn't mean 'initially | |
210 | // displayed' height, it refers to the drop-down menu as well. The | |
211 | // wxWindows interpretation is different; also, getting the size returns | |
212 | // the _displayed_ size (NOT the drop down menu size) so | |
213 | // setting-getting-setting size would not work. | |
214 | wxControl::DoSetSize(x, y, width, -1, sizeFlags); | |
215 | } | |
216 | ||
e78c4d50 | 217 | wxSize wxChoice::DoGetBestSize() const |
37f214d5 DW |
218 | { |
219 | // find the widest string | |
220 | int wLine; | |
221 | int wChoice = 0; | |
222 | int nItems = GetCount(); | |
223 | for ( int i = 0; i < nItems; i++ ) | |
224 | { | |
225 | wxString str(GetString(i)); | |
226 | GetTextExtent(str, &wLine, NULL); | |
227 | if ( wLine > wChoice ) | |
228 | wChoice = wLine; | |
229 | } | |
230 | ||
231 | // give it some reasonable default value if there are no strings in the | |
232 | // list | |
233 | if ( wChoice == 0 ) | |
234 | wChoice = 100; | |
235 | ||
236 | // the combobox should be larger than the widest string | |
237 | int cx, cy; | |
e78c4d50 | 238 | wxGetCharSize(GetHWND(), &cx, &cy, (wxFont*)&GetFont()); |
37f214d5 DW |
239 | |
240 | wChoice += 5*cx; | |
241 | ||
242 | // Choice drop-down list depends on number of items (limited to 10) | |
243 | size_t nStrings = nItems == 0 ? 10 : wxMin(10, nItems) + 1; | |
244 | int hChoice = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*nStrings; | |
245 | ||
246 | return wxSize(wChoice, hChoice); | |
247 | } | |
248 | ||
a885d89a | 249 | MRESULT wxChoice::OS2WindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) |
37f214d5 DW |
250 | { |
251 | // TODO: | |
252 | /* | |
253 | if ( nMsg == WM_LBUTTONUP ) | |
254 | { | |
255 | int x = (int)LOWORD(lParam); | |
256 | int y = (int)HIWORD(lParam); | |
257 | ||
258 | // Ok, this is truly weird, but if a panel with a wxChoice loses the | |
259 | // focus, then you get a *fake* WM_LBUTTONUP message with x = 65535 and | |
260 | // y = 65535. Filter out this nonsense. | |
261 | // | |
262 | // VZ: I'd like to know how to reproduce this please... | |
263 | if ( x == 65535 && y == 65535 ) | |
264 | return 0; | |
265 | } | |
266 | */ | |
a885d89a | 267 | return wxWindow::OS2WindowProc(nMsg, wParam, lParam); |
37f214d5 DW |
268 | } |
269 | ||
270 | bool wxChoice::OS2Command(WXUINT param, WXWORD WXUNUSED(id)) | |
271 | { | |
272 | // TODO: | |
273 | /* | |
274 | if ( param != CBN_SELCHANGE) | |
275 | { | |
276 | // "selection changed" is the only event we're after | |
277 | return FALSE; | |
278 | } | |
279 | */ | |
280 | wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId); | |
281 | event.SetInt(GetSelection()); | |
282 | event.SetEventObject(this); | |
283 | // TODO: event.SetString(GetStringSelection()); | |
284 | ProcessCommand(event); | |
285 | ||
286 | return TRUE; | |
0e320a79 DW |
287 | } |
288 |