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2bda0e17 | 1 | /////////////////////////////////////////////////////////////////////////////// |
1e6feb95 | 2 | // Name: src/msw/listbox.cpp |
2bda0e17 KB |
3 | // Purpose: wxListBox |
4 | // Author: Julian Smart | |
5 | // Modified by: Vadim Zeitlin (owner drawn stuff) | |
dd3c394a | 6 | // Created: |
2bda0e17 KB |
7 | // RCS-ID: $Id$ |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows license | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
dd3c394a | 13 | #pragma implementation "listbox.h" |
2bda0e17 KB |
14 | #endif |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
dd3c394a | 20 | #pragma hdrstop |
2bda0e17 KB |
21 | #endif |
22 | ||
1e6feb95 | 23 | #if wxUSE_LISTBOX |
0c589ad0 | 24 | |
2bda0e17 | 25 | #ifndef WX_PRECOMP |
0c589ad0 BM |
26 | #include "wx/listbox.h" |
27 | #include "wx/settings.h" | |
28 | #include "wx/brush.h" | |
29 | #include "wx/font.h" | |
30 | #include "wx/dc.h" | |
2662e49e | 31 | #include "wx/utils.h" |
2bda0e17 KB |
32 | #endif |
33 | ||
1e6feb95 VZ |
34 | #include "wx/window.h" |
35 | #include "wx/msw/private.h" | |
36 | ||
5ea105e0 RR |
37 | #include <windowsx.h> |
38 | ||
39 | #ifdef __WXWINE__ | |
40 | #if defined(GetWindowStyle) | |
41 | #undef GetWindowStyle | |
42 | #endif | |
43 | #endif | |
44 | ||
0c589ad0 BM |
45 | #include "wx/dynarray.h" |
46 | #include "wx/log.h" | |
2bda0e17 | 47 | |
0c589ad0 BM |
48 | #if wxUSE_OWNER_DRAWN |
49 | #include "wx/ownerdrw.h" | |
50 | #endif | |
2bda0e17 | 51 | |
57c208c5 | 52 | #ifndef __TWIN32__ |
c42404a5 VZ |
53 | #ifdef __GNUWIN32_OLD__ |
54 | #include "wx/msw/gnuwin32/extra.h" | |
dd3c394a | 55 | #endif |
57c208c5 | 56 | #endif |
2bda0e17 | 57 | |
5ea105e0 RR |
58 | #ifdef __WXWINE__ |
59 | #ifndef ListBox_SetItemData | |
60 | #define ListBox_SetItemData(hwndCtl, index, data) \ | |
61 | ((int)(DWORD)SendMessage((hwndCtl), LB_SETITEMDATA, (WPARAM)(int)(index), (LPARAM)(data))) | |
62 | #endif | |
63 | #ifndef ListBox_GetHorizontalExtent | |
64 | #define ListBox_GetHorizontalExtent(hwndCtl) \ | |
65 | ((int)(DWORD)SendMessage((hwndCtl), LB_GETHORIZONTALEXTENT, 0L, 0L)) | |
66 | #endif | |
67 | #ifndef ListBox_GetSelCount | |
68 | #define ListBox_GetSelCount(hwndCtl) \ | |
69 | ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELCOUNT, 0L, 0L)) | |
70 | #endif | |
71 | #ifndef ListBox_GetSelItems | |
72 | #define ListBox_GetSelItems(hwndCtl, cItems, lpItems) \ | |
73 | ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELITEMS, (WPARAM)(int)(cItems), (LPARAM)(int *)(lpItems))) | |
74 | #endif | |
75 | #ifndef ListBox_GetTextLen | |
76 | #define ListBox_GetTextLen(hwndCtl, index) \ | |
77 | ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXTLEN, (WPARAM)(int)(index), 0L)) | |
78 | #endif | |
79 | #ifndef ListBox_GetText | |
80 | #define ListBox_GetText(hwndCtl, index, lpszBuffer) \ | |
81 | ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXT, (WPARAM)(int)(index), (LPARAM)(LPCTSTR)(lpszBuffer))) | |
82 | #endif | |
83 | #endif | |
14483330 | 84 | |
dd3c394a | 85 | IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) |
2bda0e17 KB |
86 | |
87 | // ============================================================================ | |
88 | // list box item declaration and implementation | |
89 | // ============================================================================ | |
90 | ||
47d67540 | 91 | #if wxUSE_OWNER_DRAWN |
2bda0e17 KB |
92 | |
93 | class wxListBoxItem : public wxOwnerDrawn | |
94 | { | |
95 | public: | |
dd3c394a | 96 | wxListBoxItem(const wxString& str = ""); |
2bda0e17 KB |
97 | }; |
98 | ||
dd3c394a | 99 | wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE) |
2bda0e17 | 100 | { |
dd3c394a VZ |
101 | // no bitmaps/checkmarks |
102 | SetMarginWidth(0); | |
2bda0e17 KB |
103 | } |
104 | ||
33ac7e6f | 105 | wxOwnerDrawn *wxListBox::CreateItem(size_t WXUNUSED(n)) |
2bda0e17 | 106 | { |
dd3c394a | 107 | return new wxListBoxItem(); |
2bda0e17 KB |
108 | } |
109 | ||
110 | #endif //USE_OWNER_DRAWN | |
111 | ||
112 | // ============================================================================ | |
113 | // list box control implementation | |
114 | // ============================================================================ | |
115 | ||
2ee3ee1b VZ |
116 | // ---------------------------------------------------------------------------- |
117 | // creation | |
118 | // ---------------------------------------------------------------------------- | |
dd3c394a | 119 | |
2ee3ee1b | 120 | // Listbox item |
bfc6fde4 | 121 | wxListBox::wxListBox() |
2bda0e17 | 122 | { |
dd3c394a VZ |
123 | m_noItems = 0; |
124 | m_selected = 0; | |
2bda0e17 KB |
125 | } |
126 | ||
dd3c394a VZ |
127 | bool wxListBox::Create(wxWindow *parent, |
128 | wxWindowID id, | |
2bda0e17 KB |
129 | const wxPoint& pos, |
130 | const wxSize& size, | |
debe6624 JS |
131 | int n, const wxString choices[], |
132 | long style, | |
2bda0e17 KB |
133 | const wxValidator& validator, |
134 | const wxString& name) | |
135 | { | |
dd3c394a VZ |
136 | m_noItems = 0; |
137 | m_hWnd = 0; | |
138 | m_selected = 0; | |
2bda0e17 | 139 | |
dd3c394a | 140 | SetName(name); |
11b6a93b | 141 | #if wxUSE_VALIDATORS |
dd3c394a | 142 | SetValidator(validator); |
11b6a93b | 143 | #endif // wxUSE_VALIDATORS |
2bda0e17 | 144 | |
dd3c394a VZ |
145 | if (parent) |
146 | parent->AddChild(this); | |
2bda0e17 | 147 | |
dd3c394a VZ |
148 | wxSystemSettings settings; |
149 | SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW)); | |
150 | SetForegroundColour(parent->GetForegroundColour()); | |
2bda0e17 | 151 | |
dd3c394a | 152 | m_windowId = ( id == -1 ) ? (int)NewControlId() : id; |
2bda0e17 | 153 | |
dd3c394a VZ |
154 | int x = pos.x; |
155 | int y = pos.y; | |
156 | int width = size.x; | |
157 | int height = size.y; | |
158 | m_windowStyle = style; | |
2bda0e17 | 159 | |
42e69d6b | 160 | DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP | |
f6bcfd97 | 161 | LBS_NOTIFY | LBS_HASSTRINGS /* | WS_CLIPSIBLINGS */; |
54081dc5 VZ |
162 | |
163 | wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED), | |
164 | _T("only one of listbox selection modes can be specified") ); | |
b0766406 JS |
165 | if ( m_windowStyle & wxCLIP_SIBLINGS ) |
166 | wstyle |= WS_CLIPSIBLINGS; | |
54081dc5 | 167 | |
dd3c394a VZ |
168 | if (m_windowStyle & wxLB_MULTIPLE) |
169 | wstyle |= LBS_MULTIPLESEL; | |
170 | else if (m_windowStyle & wxLB_EXTENDED) | |
171 | wstyle |= LBS_EXTENDEDSEL; | |
2bda0e17 | 172 | |
dd3c394a | 173 | if (m_windowStyle & wxLB_ALWAYS_SB) |
2ee3ee1b | 174 | wstyle |= LBS_DISABLENOSCROLL; |
dd3c394a VZ |
175 | if (m_windowStyle & wxLB_HSCROLL) |
176 | wstyle |= WS_HSCROLL; | |
177 | if (m_windowStyle & wxLB_SORT) | |
178 | wstyle |= LBS_SORT; | |
2bda0e17 | 179 | |
47d67540 | 180 | #if wxUSE_OWNER_DRAWN |
2bda0e17 | 181 | if ( m_windowStyle & wxLB_OWNERDRAW ) { |
dd3c394a VZ |
182 | // we don't support LBS_OWNERDRAWVARIABLE yet |
183 | wstyle |= LBS_OWNERDRAWFIXED; | |
2bda0e17 | 184 | } |
2bda0e17 KB |
185 | #endif |
186 | ||
dd3c394a VZ |
187 | // Without this style, you get unexpected heights, so e.g. constraint layout |
188 | // doesn't work properly | |
189 | wstyle |= LBS_NOINTEGRALHEIGHT; | |
190 | ||
191 | bool want3D; | |
2ee3ee1b | 192 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); |
2bda0e17 | 193 | |
2ee3ee1b VZ |
194 | // Even with extended styles, need to combine with WS_BORDER for them to |
195 | // look right. | |
dd3c394a VZ |
196 | if ( want3D || wxStyleHasBorder(m_windowStyle) ) |
197 | { | |
198 | wstyle |= WS_BORDER; | |
199 | } | |
2bda0e17 | 200 | |
223d09f6 | 201 | m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL, |
dd3c394a VZ |
202 | wstyle | WS_CHILD, |
203 | 0, 0, 0, 0, | |
204 | (HWND)parent->GetHWND(), (HMENU)m_windowId, | |
205 | wxGetInstance(), NULL); | |
1c089c47 | 206 | |
223d09f6 | 207 | wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") ); |
1c089c47 | 208 | |
1f112209 | 209 | #if wxUSE_CTL3D |
dd3c394a VZ |
210 | if (want3D) |
211 | { | |
a23fd0e1 | 212 | Ctl3dSubclassCtl(GetHwnd()); |
dd3c394a VZ |
213 | m_useCtl3D = TRUE; |
214 | } | |
2bda0e17 KB |
215 | #endif |
216 | ||
dd3c394a VZ |
217 | // Subclass again to catch messages |
218 | SubclassWin(m_hWnd); | |
2bda0e17 | 219 | |
dd3c394a VZ |
220 | size_t ui; |
221 | for (ui = 0; ui < (size_t)n; ui++) { | |
222 | Append(choices[ui]); | |
2bda0e17 | 223 | } |
2bda0e17 | 224 | |
dd3c394a | 225 | if ( (m_windowStyle & wxLB_MULTIPLE) == 0 ) |
a23fd0e1 | 226 | SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0); |
2bda0e17 | 227 | |
dd3c394a | 228 | SetFont(parent->GetFont()); |
2bda0e17 | 229 | |
dd3c394a | 230 | SetSize(x, y, width, height); |
2bda0e17 | 231 | |
dd3c394a | 232 | return TRUE; |
2bda0e17 KB |
233 | } |
234 | ||
bfc6fde4 | 235 | wxListBox::~wxListBox() |
2bda0e17 | 236 | { |
baccb514 | 237 | Free(); |
2bda0e17 KB |
238 | } |
239 | ||
bfc6fde4 | 240 | void wxListBox::SetupColours() |
2bda0e17 | 241 | { |
dd3c394a VZ |
242 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); |
243 | SetForegroundColour(GetParent()->GetForegroundColour()); | |
2bda0e17 KB |
244 | } |
245 | ||
2ee3ee1b VZ |
246 | // ---------------------------------------------------------------------------- |
247 | // implementation of wxListBoxBase methods | |
248 | // ---------------------------------------------------------------------------- | |
249 | ||
250 | void wxListBox::DoSetFirstItem(int N) | |
2bda0e17 | 251 | { |
dd3c394a | 252 | wxCHECK_RET( N >= 0 && N < m_noItems, |
223d09f6 | 253 | wxT("invalid index in wxListBox::SetFirstItem") ); |
dd3c394a | 254 | |
2ee3ee1b | 255 | SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0); |
2bda0e17 KB |
256 | } |
257 | ||
debe6624 | 258 | void wxListBox::Delete(int N) |
2bda0e17 | 259 | { |
dd3c394a | 260 | wxCHECK_RET( N >= 0 && N < m_noItems, |
223d09f6 | 261 | wxT("invalid index in wxListBox::Delete") ); |
dd3c394a | 262 | |
07cf98cb VZ |
263 | // for owner drawn objects, the data is used for storing wxOwnerDrawn |
264 | // pointers and we shouldn't touch it | |
265 | #if !wxUSE_OWNER_DRAWN | |
266 | if ( !(m_windowStyle & wxLB_OWNERDRAW) ) | |
267 | #endif // !wxUSE_OWNER_DRAWN | |
268 | if ( HasClientObjectData() ) | |
269 | { | |
270 | delete GetClientObject(N); | |
271 | } | |
6c8a980f | 272 | |
a23fd0e1 | 273 | SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); |
dd3c394a VZ |
274 | m_noItems--; |
275 | ||
276 | SetHorizontalExtent(""); | |
2bda0e17 KB |
277 | } |
278 | ||
2ee3ee1b | 279 | int wxListBox::DoAppend(const wxString& item) |
2bda0e17 | 280 | { |
a23fd0e1 | 281 | int index = ListBox_AddString(GetHwnd(), item); |
2ee3ee1b | 282 | m_noItems++; |
2bda0e17 | 283 | |
47d67540 | 284 | #if wxUSE_OWNER_DRAWN |
2bda0e17 | 285 | if ( m_windowStyle & wxLB_OWNERDRAW ) { |
dd3c394a VZ |
286 | wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument |
287 | pNewItem->SetName(item); | |
288 | m_aItems.Add(pNewItem); | |
a23fd0e1 | 289 | ListBox_SetItemData(GetHwnd(), index, pNewItem); |
60c65519 | 290 | pNewItem->SetFont(GetFont()); |
2bda0e17 | 291 | } |
1c089c47 | 292 | #endif |
2bda0e17 | 293 | |
dd3c394a | 294 | SetHorizontalExtent(item); |
dd3c394a | 295 | |
2ee3ee1b | 296 | return index; |
2bda0e17 KB |
297 | } |
298 | ||
2ee3ee1b | 299 | void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData) |
2bda0e17 | 300 | { |
f6bcfd97 BP |
301 | // avoid flicker - but don't need to do this for a hidden listbox |
302 | bool hideAndShow = IsShown(); | |
303 | if ( hideAndShow ) | |
304 | { | |
305 | ShowWindow(GetHwnd(), SW_HIDE); | |
306 | } | |
2ee3ee1b | 307 | |
a23fd0e1 | 308 | ListBox_ResetContent(GetHwnd()); |
2ee3ee1b VZ |
309 | |
310 | m_noItems = choices.GetCount(); | |
dd3c394a | 311 | int i; |
2ee3ee1b | 312 | for (i = 0; i < m_noItems; i++) |
dd3c394a | 313 | { |
a23fd0e1 | 314 | ListBox_AddString(GetHwnd(), choices[i]); |
dd3c394a | 315 | if ( clientData ) |
2ee3ee1b VZ |
316 | { |
317 | #if wxUSE_OWNER_DRAWN | |
5615ab37 DW |
318 | if ( m_windowStyle & wxLB_OWNERDRAW ) |
319 | { | |
320 | wxASSERT_MSG(clientData[i] == NULL, | |
321 | wxT("Can't use client data with owner-drawn listboxes")); | |
322 | } | |
323 | ListBox_SetItemData(GetHwnd(), i, clientData[i]); | |
2ee3ee1b | 324 | #else // !wxUSE_OWNER_DRAWN |
a23fd0e1 | 325 | ListBox_SetItemData(GetHwnd(), i, clientData[i]); |
2ee3ee1b VZ |
326 | #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN |
327 | } | |
dd3c394a | 328 | } |
2bda0e17 | 329 | |
47d67540 | 330 | #if wxUSE_OWNER_DRAWN |
2bda0e17 | 331 | if ( m_windowStyle & wxLB_OWNERDRAW ) { |
dd3c394a VZ |
332 | // first delete old items |
333 | size_t ui = m_aItems.Count(); | |
334 | while ( ui-- != 0 ) { | |
335 | delete m_aItems[ui]; | |
336 | } | |
337 | m_aItems.Empty(); | |
338 | ||
339 | // then create new ones | |
2ee3ee1b | 340 | for ( ui = 0; ui < (size_t)m_noItems; ui++ ) { |
dd3c394a VZ |
341 | wxOwnerDrawn *pNewItem = CreateItem(ui); |
342 | pNewItem->SetName(choices[ui]); | |
343 | m_aItems.Add(pNewItem); | |
a23fd0e1 | 344 | ListBox_SetItemData(GetHwnd(), ui, pNewItem); |
dd3c394a | 345 | } |
2bda0e17 | 346 | } |
2ee3ee1b VZ |
347 | #endif // wxUSE_OWNER_DRAWN |
348 | ||
349 | SetHorizontalExtent(); | |
2bda0e17 | 350 | |
f6bcfd97 BP |
351 | if ( hideAndShow ) |
352 | { | |
353 | // show the listbox back if we hid it | |
354 | ShowWindow(GetHwnd(), SW_SHOW); | |
355 | } | |
2bda0e17 KB |
356 | } |
357 | ||
358 | int wxListBox::FindString(const wxString& s) const | |
359 | { | |
a23fd0e1 | 360 | int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s); |
dd3c394a | 361 | if (pos == LB_ERR) |
2ee3ee1b | 362 | return wxNOT_FOUND; |
dd3c394a VZ |
363 | else |
364 | return pos; | |
2bda0e17 KB |
365 | } |
366 | ||
bfc6fde4 | 367 | void wxListBox::Clear() |
2bda0e17 | 368 | { |
baccb514 | 369 | Free(); |
8ee9d618 VZ |
370 | |
371 | ListBox_ResetContent(GetHwnd()); | |
372 | ||
373 | m_noItems = 0; | |
374 | SetHorizontalExtent(); | |
375 | } | |
376 | ||
377 | void wxListBox::Free() | |
2b273975 | 378 | { |
dd3c394a | 379 | #if wxUSE_OWNER_DRAWN |
185fa6bf VZ |
380 | if ( m_windowStyle & wxLB_OWNERDRAW ) |
381 | { | |
382 | size_t uiCount = m_aItems.Count(); | |
383 | while ( uiCount-- != 0 ) { | |
384 | delete m_aItems[uiCount]; | |
385 | } | |
dd3c394a | 386 | |
185fa6bf VZ |
387 | m_aItems.Clear(); |
388 | } | |
389 | else | |
390 | #endif // wxUSE_OWNER_DRAWN | |
6c8a980f VZ |
391 | if ( HasClientObjectData() ) |
392 | { | |
393 | for ( size_t n = 0; n < (size_t)m_noItems; n++ ) | |
394 | { | |
395 | delete GetClientObject(n); | |
396 | } | |
397 | } | |
2bda0e17 | 398 | } |
baccb514 | 399 | |
debe6624 | 400 | void wxListBox::SetSelection(int N, bool select) |
2bda0e17 | 401 | { |
dd3c394a | 402 | wxCHECK_RET( N >= 0 && N < m_noItems, |
223d09f6 | 403 | wxT("invalid index in wxListBox::SetSelection") ); |
dd3c394a | 404 | |
2ee3ee1b VZ |
405 | if ( HasMultipleSelection() ) |
406 | { | |
a23fd0e1 | 407 | SendMessage(GetHwnd(), LB_SETSEL, select, N); |
2ee3ee1b | 408 | } |
dd3c394a VZ |
409 | else |
410 | { | |
2ee3ee1b | 411 | SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0); |
dd3c394a | 412 | } |
2bda0e17 KB |
413 | } |
414 | ||
2ee3ee1b | 415 | bool wxListBox::IsSelected(int N) const |
2bda0e17 | 416 | { |
dd3c394a | 417 | wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE, |
223d09f6 | 418 | wxT("invalid index in wxListBox::Selected") ); |
dd3c394a | 419 | |
a23fd0e1 | 420 | return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE; |
2bda0e17 KB |
421 | } |
422 | ||
6c8a980f | 423 | wxClientData* wxListBox::DoGetItemClientObject(int n) const |
2bda0e17 | 424 | { |
6c8a980f | 425 | return (wxClientData *)DoGetItemClientData(n); |
2bda0e17 KB |
426 | } |
427 | ||
6c8a980f | 428 | void *wxListBox::DoGetItemClientData(int n) const |
2bda0e17 | 429 | { |
2ee3ee1b | 430 | wxCHECK_MSG( n >= 0 && n < m_noItems, NULL, |
223d09f6 | 431 | wxT("invalid index in wxListBox::GetClientData") ); |
dd3c394a | 432 | |
2ee3ee1b | 433 | return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0); |
2bda0e17 KB |
434 | } |
435 | ||
6c8a980f | 436 | void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData) |
2bda0e17 | 437 | { |
6c8a980f | 438 | DoSetItemClientData(n, clientData); |
2ee3ee1b VZ |
439 | } |
440 | ||
6c8a980f | 441 | void wxListBox::DoSetItemClientData(int n, void *clientData) |
2ee3ee1b VZ |
442 | { |
443 | wxCHECK_RET( n >= 0 && n < m_noItems, | |
223d09f6 | 444 | wxT("invalid index in wxListBox::SetClientData") ); |
dd3c394a | 445 | |
2ee3ee1b VZ |
446 | #if wxUSE_OWNER_DRAWN |
447 | if ( m_windowStyle & wxLB_OWNERDRAW ) | |
448 | { | |
449 | // client data must be pointer to wxOwnerDrawn, otherwise we would crash | |
450 | // in OnMeasure/OnDraw. | |
451 | wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes")); | |
452 | } | |
453 | #endif // wxUSE_OWNER_DRAWN | |
454 | ||
455 | if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR ) | |
223d09f6 | 456 | wxLogDebug(wxT("LB_SETITEMDATA failed")); |
2bda0e17 KB |
457 | } |
458 | ||
459 | // Return number of selections and an array of selected integers | |
14483330 | 460 | int wxListBox::GetSelections(wxArrayInt& aSelections) const |
2bda0e17 | 461 | { |
dd3c394a | 462 | aSelections.Empty(); |
14483330 | 463 | |
2ee3ee1b | 464 | if ( HasMultipleSelection() ) |
dd3c394a | 465 | { |
a23fd0e1 | 466 | int no_sel = ListBox_GetSelCount(GetHwnd()); |
dd3c394a VZ |
467 | if (no_sel != 0) { |
468 | int *selections = new int[no_sel]; | |
2ee3ee1b VZ |
469 | int rc = ListBox_GetSelItems(GetHwnd(), no_sel, selections); |
470 | ||
471 | wxCHECK_MSG(rc != LB_ERR, -1, wxT("ListBox_GetSelItems failed")); | |
14483330 | 472 | |
dd3c394a VZ |
473 | aSelections.Alloc(no_sel); |
474 | for ( int n = 0; n < no_sel; n++ ) | |
475 | aSelections.Add(selections[n]); | |
14483330 | 476 | |
dd3c394a VZ |
477 | delete [] selections; |
478 | } | |
14483330 | 479 | |
dd3c394a VZ |
480 | return no_sel; |
481 | } | |
482 | else // single-selection listbox | |
483 | { | |
f6bcfd97 BP |
484 | if (ListBox_GetCurSel(GetHwnd()) > -1) |
485 | aSelections.Add(ListBox_GetCurSel(GetHwnd())); | |
14483330 | 486 | |
f6bcfd97 | 487 | return aSelections.Count(); |
dd3c394a | 488 | } |
2bda0e17 KB |
489 | } |
490 | ||
491 | // Get single selection, for single choice list items | |
14483330 | 492 | int wxListBox::GetSelection() const |
2bda0e17 | 493 | { |
2ee3ee1b | 494 | wxCHECK_MSG( !HasMultipleSelection(), |
dd3c394a | 495 | -1, |
f6bcfd97 | 496 | wxT("GetSelection() can't be used with multiple-selection listboxes, use GetSelections() instead.") ); |
14483330 | 497 | |
a23fd0e1 | 498 | return ListBox_GetCurSel(GetHwnd()); |
2bda0e17 KB |
499 | } |
500 | ||
501 | // Find string for position | |
debe6624 | 502 | wxString wxListBox::GetString(int N) const |
2bda0e17 | 503 | { |
dd3c394a | 504 | wxCHECK_MSG( N >= 0 && N < m_noItems, "", |
223d09f6 | 505 | wxT("invalid index in wxListBox::GetClientData") ); |
dd3c394a | 506 | |
a23fd0e1 | 507 | int len = ListBox_GetTextLen(GetHwnd(), N); |
dd3c394a VZ |
508 | |
509 | // +1 for terminating NUL | |
510 | wxString result; | |
a23fd0e1 | 511 | ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1)); |
dd3c394a VZ |
512 | result.UngetWriteBuf(); |
513 | ||
514 | return result; | |
2bda0e17 KB |
515 | } |
516 | ||
2ee3ee1b VZ |
517 | void |
518 | wxListBox::DoInsertItems(const wxArrayString& items, int pos) | |
519 | { | |
520 | wxCHECK_RET( pos >= 0 && pos <= m_noItems, | |
521 | wxT("invalid index in wxListBox::InsertItems") ); | |
522 | ||
523 | int nItems = items.GetCount(); | |
524 | for ( int i = 0; i < nItems; i++ ) | |
525 | ListBox_InsertString(GetHwnd(), i + pos, items[i]); | |
526 | m_noItems += nItems; | |
527 | ||
528 | SetHorizontalExtent(); | |
529 | } | |
530 | ||
531 | void wxListBox::SetString(int N, const wxString& s) | |
532 | { | |
533 | wxCHECK_RET( N >= 0 && N < m_noItems, | |
534 | wxT("invalid index in wxListBox::SetString") ); | |
535 | ||
536 | // remember the state of the item | |
537 | bool wasSelected = IsSelected(N); | |
538 | ||
539 | void *oldData = NULL; | |
540 | wxClientData *oldObjData = NULL; | |
1e6feb95 | 541 | if ( m_clientDataItemsType == wxClientData_Void ) |
2ee3ee1b | 542 | oldData = GetClientData(N); |
1e6feb95 | 543 | else if ( m_clientDataItemsType == wxClientData_Object ) |
2ee3ee1b VZ |
544 | oldObjData = GetClientObject(N); |
545 | ||
546 | // delete and recreate it | |
547 | SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); | |
548 | ||
549 | int newN = N; | |
550 | if ( N == m_noItems - 1 ) | |
551 | newN = -1; | |
552 | ||
553 | ListBox_InsertString(GetHwnd(), newN, s); | |
554 | ||
555 | // restore the client data | |
556 | if ( oldData ) | |
557 | SetClientData(N, oldData); | |
558 | else if ( oldObjData ) | |
559 | SetClientObject(N, oldObjData); | |
560 | ||
561 | // we may have lost the selection | |
562 | if ( wasSelected ) | |
563 | Select(N); | |
564 | ||
565 | #if wxUSE_OWNER_DRAWN | |
566 | if ( m_windowStyle & wxLB_OWNERDRAW ) | |
567 | // update item's text | |
568 | m_aItems[N]->SetName(s); | |
569 | #endif //USE_OWNER_DRAWN | |
570 | } | |
571 | ||
572 | int wxListBox::GetCount() const | |
573 | { | |
574 | return m_noItems; | |
575 | } | |
576 | ||
577 | // ---------------------------------------------------------------------------- | |
578 | // helpers | |
579 | // ---------------------------------------------------------------------------- | |
580 | ||
4438caf4 VZ |
581 | // Windows-specific code to set the horizontal extent of the listbox, if |
582 | // necessary. If s is non-NULL, it's used to calculate the horizontal extent. | |
2bda0e17 KB |
583 | // Otherwise, all strings are used. |
584 | void wxListBox::SetHorizontalExtent(const wxString& s) | |
585 | { | |
dd3c394a VZ |
586 | // Only necessary if we want a horizontal scrollbar |
587 | if (!(m_windowStyle & wxHSCROLL)) | |
588 | return; | |
589 | TEXTMETRIC lpTextMetric; | |
590 | ||
2ee3ee1b | 591 | if ( !s.IsEmpty() ) |
2bda0e17 | 592 | { |
a23fd0e1 VZ |
593 | int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L); |
594 | HDC dc = GetWindowDC(GetHwnd()); | |
dd3c394a VZ |
595 | HFONT oldFont = 0; |
596 | if (GetFont().Ok() && GetFont().GetResourceHandle()) | |
597 | oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle()); | |
598 | ||
599 | GetTextMetrics(dc, &lpTextMetric); | |
600 | SIZE extentXY; | |
837e5743 | 601 | ::GetTextExtentPoint(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY); |
dd3c394a VZ |
602 | int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); |
603 | ||
604 | if (oldFont) | |
605 | ::SelectObject(dc, oldFont); | |
606 | ||
a23fd0e1 | 607 | ReleaseDC(GetHwnd(), dc); |
dd3c394a | 608 | if (extentX > existingExtent) |
a23fd0e1 | 609 | SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L); |
dd3c394a VZ |
610 | } |
611 | else | |
612 | { | |
613 | int largestExtent = 0; | |
a23fd0e1 | 614 | HDC dc = GetWindowDC(GetHwnd()); |
dd3c394a VZ |
615 | HFONT oldFont = 0; |
616 | if (GetFont().Ok() && GetFont().GetResourceHandle()) | |
617 | oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle()); | |
618 | ||
619 | GetTextMetrics(dc, &lpTextMetric); | |
620 | int i; | |
621 | for (i = 0; i < m_noItems; i++) | |
622 | { | |
a23fd0e1 | 623 | int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer); |
dd3c394a VZ |
624 | wxBuffer[len] = 0; |
625 | SIZE extentXY; | |
837e5743 | 626 | ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY); |
dd3c394a VZ |
627 | int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); |
628 | if (extentX > largestExtent) | |
629 | largestExtent = extentX; | |
630 | } | |
631 | if (oldFont) | |
632 | ::SelectObject(dc, oldFont); | |
633 | ||
a23fd0e1 VZ |
634 | ReleaseDC(GetHwnd(), dc); |
635 | SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L); | |
2bda0e17 | 636 | } |
2bda0e17 KB |
637 | } |
638 | ||
f68586e5 | 639 | wxSize wxListBox::DoGetBestSize() const |
b908d224 VZ |
640 | { |
641 | // find the widest string | |
642 | int wLine; | |
643 | int wListbox = 0; | |
644 | for ( int i = 0; i < m_noItems; i++ ) | |
645 | { | |
646 | wxString str(GetString(i)); | |
647 | GetTextExtent(str, &wLine, NULL); | |
648 | if ( wLine > wListbox ) | |
649 | wListbox = wLine; | |
650 | } | |
651 | ||
652 | // give it some reasonable default value if there are no strings in the | |
653 | // list | |
654 | if ( wListbox == 0 ) | |
655 | wListbox = 100; | |
656 | ||
657 | // the listbox should be slightly larger than the widest string | |
658 | int cx, cy; | |
659 | wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); | |
660 | ||
661 | wListbox += 3*cx; | |
662 | ||
5b6d6b70 VZ |
663 | // don't make the listbox too tall (limit height to 10 items) but don't |
664 | // make it too small neither | |
665 | int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)* | |
666 | wxMin(wxMax(m_noItems, 3), 10); | |
b908d224 VZ |
667 | |
668 | return wxSize(wListbox, hListbox); | |
669 | } | |
670 | ||
2ee3ee1b VZ |
671 | // ---------------------------------------------------------------------------- |
672 | // callbacks | |
673 | // ---------------------------------------------------------------------------- | |
674 | ||
675 | bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) | |
2bda0e17 | 676 | { |
bada28f0 | 677 | wxEventType evtType; |
8ee9d618 | 678 | if ( param == LBN_SELCHANGE ) |
2bda0e17 | 679 | { |
bada28f0 | 680 | evtType = wxEVT_COMMAND_LISTBOX_SELECTED; |
2bda0e17 | 681 | } |
8ee9d618 | 682 | else if ( param == LBN_DBLCLK ) |
2ee3ee1b | 683 | { |
bada28f0 VZ |
684 | evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; |
685 | } | |
686 | else | |
687 | { | |
688 | // some event we're not interested in | |
689 | return FALSE; | |
690 | } | |
691 | ||
692 | wxCommandEvent event(evtType, m_windowId); | |
693 | event.SetEventObject( this ); | |
8ee9d618 | 694 | |
bada28f0 VZ |
695 | wxArrayInt aSelections; |
696 | int n, count = GetSelections(aSelections); | |
697 | if ( count > 0 ) | |
698 | { | |
699 | n = aSelections[0]; | |
700 | if ( HasClientObjectData() ) | |
701 | event.SetClientObject( GetClientObject(n) ); | |
702 | else if ( HasClientUntypedData() ) | |
703 | event.SetClientData( GetClientData(n) ); | |
704 | event.SetString( GetString(n) ); | |
2ee3ee1b | 705 | } |
bada28f0 VZ |
706 | else |
707 | { | |
708 | n = -1; | |
709 | } | |
710 | ||
711 | event.m_commandInt = n; | |
2ee3ee1b | 712 | |
bada28f0 | 713 | return GetEventHandler()->ProcessEvent(event); |
2bda0e17 KB |
714 | } |
715 | ||
2ee3ee1b VZ |
716 | // ---------------------------------------------------------------------------- |
717 | // wxCheckListBox support | |
718 | // ---------------------------------------------------------------------------- | |
2bda0e17 | 719 | |
47d67540 | 720 | #if wxUSE_OWNER_DRAWN |
2bda0e17 KB |
721 | |
722 | // drawing | |
723 | // ------- | |
724 | ||
725 | // space beneath/above each row in pixels | |
726 | // "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly. | |
727 | #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1) | |
728 | ||
729 | // the height is the same for all items | |
dd3c394a VZ |
730 | // TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes |
731 | ||
732 | // NB: can't forward this to wxListBoxItem because LB_SETITEMDATA | |
733 | // message is not yet sent when we get here! | |
2bda0e17 KB |
734 | bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item) |
735 | { | |
dd3c394a VZ |
736 | // only owner-drawn control should receive this message |
737 | wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE ); | |
2bda0e17 | 738 | |
dd3c394a | 739 | MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item; |
2bda0e17 | 740 | |
07cf98cb VZ |
741 | HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0); |
742 | ||
dd3c394a | 743 | wxDC dc; |
07cf98cb | 744 | dc.SetHDC((WXHDC)hdc); |
dd3c394a | 745 | dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT)); |
2bda0e17 | 746 | |
dd3c394a VZ |
747 | pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE; |
748 | pStruct->itemWidth = dc.GetCharWidth(); | |
2bda0e17 | 749 | |
07cf98cb VZ |
750 | dc.SetHDC(0); |
751 | ||
752 | DeleteDC(hdc); | |
753 | ||
dd3c394a | 754 | return TRUE; |
2bda0e17 KB |
755 | } |
756 | ||
757 | // forward the message to the appropriate item | |
758 | bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item) | |
759 | { | |
dd3c394a VZ |
760 | // only owner-drawn control should receive this message |
761 | wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE ); | |
762 | ||
763 | DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item; | |
f6bcfd97 BP |
764 | UINT itemID = pStruct->itemID; |
765 | ||
766 | // the item may be -1 for an empty listbox | |
767 | if ( itemID == (UINT)-1 ) | |
768 | return FALSE; | |
dd3c394a | 769 | |
a23fd0e1 | 770 | long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID); |
2bda0e17 | 771 | |
dd3c394a | 772 | wxCHECK( data && (data != LB_ERR), FALSE ); |
2bda0e17 | 773 | |
dd3c394a | 774 | wxListBoxItem *pItem = (wxListBoxItem *)data; |
2bda0e17 | 775 | |
7561aacd | 776 | wxDCTemp dc((WXHDC)pStruct->hDC); |
dd3c394a | 777 | wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top), |
f6bcfd97 | 778 | wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom)); |
2bda0e17 | 779 | |
dd3c394a | 780 | return pItem->OnDrawItem(dc, rect, |
7561aacd VZ |
781 | (wxOwnerDrawn::wxODAction)pStruct->itemAction, |
782 | (wxOwnerDrawn::wxODStatus)pStruct->itemState); | |
2bda0e17 KB |
783 | } |
784 | ||
1e6feb95 VZ |
785 | #endif // wxUSE_OWNER_DRAWN |
786 | ||
787 | #endif // wxUSE_LISTBOX |