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