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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:
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7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart
9// Licence: wxWindows license
10///////////////////////////////////////////////////////////////////////////////
11
12#ifdef __GNUG__
dd3c394a 13 #pragma implementation "listbox.h"
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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
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21#endif
22
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23#include "wx/window.h"
24#include "wx/msw/private.h"
25
2bda0e17 26#ifndef WX_PRECOMP
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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"
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32#endif
33
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34#include <windowsx.h>
35
36#ifdef __WXWINE__
37 #if defined(GetWindowStyle)
38 #undef GetWindowStyle
39 #endif
40#endif
41
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42#include "wx/dynarray.h"
43#include "wx/log.h"
2bda0e17 44
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45#if wxUSE_OWNER_DRAWN
46 #include "wx/ownerdrw.h"
47#endif
2bda0e17 48
57c208c5 49#ifndef __TWIN32__
5ea105e0 50 #if defined(__GNUWIN32__)
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51 #include <wx/msw/gnuwin32/extra.h>
52 #endif
57c208c5 53#endif
2bda0e17 54
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55#ifdef __WXWINE__
56 #ifndef ListBox_SetItemData
57 #define ListBox_SetItemData(hwndCtl, index, data) \
58 ((int)(DWORD)SendMessage((hwndCtl), LB_SETITEMDATA, (WPARAM)(int)(index), (LPARAM)(data)))
59 #endif
60 #ifndef ListBox_GetHorizontalExtent
61 #define ListBox_GetHorizontalExtent(hwndCtl) \
62 ((int)(DWORD)SendMessage((hwndCtl), LB_GETHORIZONTALEXTENT, 0L, 0L))
63 #endif
64 #ifndef ListBox_GetSelCount
65 #define ListBox_GetSelCount(hwndCtl) \
66 ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELCOUNT, 0L, 0L))
67 #endif
68 #ifndef ListBox_GetSelItems
69 #define ListBox_GetSelItems(hwndCtl, cItems, lpItems) \
70 ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELITEMS, (WPARAM)(int)(cItems), (LPARAM)(int *)(lpItems)))
71 #endif
72 #ifndef ListBox_GetTextLen
73 #define ListBox_GetTextLen(hwndCtl, index) \
74 ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXTLEN, (WPARAM)(int)(index), 0L))
75 #endif
76 #ifndef ListBox_GetText
77 #define ListBox_GetText(hwndCtl, index, lpszBuffer) \
78 ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXT, (WPARAM)(int)(index), (LPARAM)(LPCTSTR)(lpszBuffer)))
79 #endif
80#endif
14483330 81
2bda0e17 82#if !USE_SHARED_LIBRARY
dd3c394a 83 IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
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84#endif
85
86// ============================================================================
87// list box item declaration and implementation
88// ============================================================================
89
47d67540 90#if wxUSE_OWNER_DRAWN
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91
92class wxListBoxItem : public wxOwnerDrawn
93{
94public:
dd3c394a 95 wxListBoxItem(const wxString& str = "");
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96};
97
dd3c394a 98wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
2bda0e17 99{
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100 // no bitmaps/checkmarks
101 SetMarginWidth(0);
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102}
103
c86f1403 104wxOwnerDrawn *wxListBox::CreateItem(size_t n)
2bda0e17 105{
dd3c394a 106 return new wxListBoxItem();
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107}
108
109#endif //USE_OWNER_DRAWN
110
111// ============================================================================
112// list box control implementation
113// ============================================================================
114
debe6624 115bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
2bda0e17 116{
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117 /*
118 if (param == LBN_SELCANCEL)
119 {
120 event.extraLong = FALSE;
121 }
122 */
123 if (param == LBN_SELCHANGE)
2bda0e17 124 {
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125 wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
126 wxArrayInt aSelections;
127 int count = GetSelections(aSelections);
128 if ( count > 0 )
129 {
130 event.m_commandInt = aSelections[0] ;
131 event.m_clientData = GetClientData(event.m_commandInt);
132 wxString str(GetString(event.m_commandInt));
837e5743 133 if (str != _T(""))
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134 {
135 event.m_commandString = str;
136 }
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137 }
138 else
139 {
140 event.m_commandInt = -1 ;
aeab6775 141 event.m_commandString.Empty();
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142 }
143
144 event.SetEventObject( this );
145 ProcessCommand(event);
dd3c394a 146 return TRUE;
2bda0e17 147 }
dd3c394a 148 else if (param == LBN_DBLCLK)
2bda0e17 149 {
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150 wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
151 event.SetEventObject( this );
152 GetEventHandler()->ProcessEvent(event) ;
153 return TRUE;
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154 }
155
dd3c394a 156 return FALSE;
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157}
158
dd3c394a 159 // Listbox item
bfc6fde4 160wxListBox::wxListBox()
2bda0e17 161{
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162 m_noItems = 0;
163 m_selected = 0;
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164}
165
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166bool wxListBox::Create(wxWindow *parent,
167 wxWindowID id,
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168 const wxPoint& pos,
169 const wxSize& size,
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170 int n, const wxString choices[],
171 long style,
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172 const wxValidator& validator,
173 const wxString& name)
174{
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175 m_noItems = 0;
176 m_hWnd = 0;
177 m_selected = 0;
2bda0e17 178
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179 SetName(name);
180 SetValidator(validator);
2bda0e17 181
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182 if (parent)
183 parent->AddChild(this);
2bda0e17 184
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185 wxSystemSettings settings;
186 SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
187 SetForegroundColour(parent->GetForegroundColour());
2bda0e17 188
dd3c394a 189 m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
2bda0e17 190
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191 int x = pos.x;
192 int y = pos.y;
193 int width = size.x;
194 int height = size.y;
195 m_windowStyle = style;
2bda0e17 196
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197 DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP |
198 LBS_NOTIFY | LBS_HASSTRINGS;
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199 if (m_windowStyle & wxLB_MULTIPLE)
200 wstyle |= LBS_MULTIPLESEL;
201 else if (m_windowStyle & wxLB_EXTENDED)
202 wstyle |= LBS_EXTENDEDSEL;
2bda0e17 203
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204 if (m_windowStyle & wxLB_ALWAYS_SB)
205 wstyle |= LBS_DISABLENOSCROLL ;
206 if (m_windowStyle & wxLB_HSCROLL)
207 wstyle |= WS_HSCROLL;
208 if (m_windowStyle & wxLB_SORT)
209 wstyle |= LBS_SORT;
2bda0e17 210
47d67540 211#if wxUSE_OWNER_DRAWN
2bda0e17 212 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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213 // we don't support LBS_OWNERDRAWVARIABLE yet
214 wstyle |= LBS_OWNERDRAWFIXED;
2bda0e17 215 }
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216#endif
217
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218 // Without this style, you get unexpected heights, so e.g. constraint layout
219 // doesn't work properly
220 wstyle |= LBS_NOINTEGRALHEIGHT;
221
222 bool want3D;
223 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
2bda0e17 224
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225 // Even with extended styles, need to combine with WS_BORDER
226 // for them to look right.
227 if ( want3D || wxStyleHasBorder(m_windowStyle) )
228 {
229 wstyle |= WS_BORDER;
230 }
2bda0e17 231
837e5743 232 m_hWnd = (WXHWND)::CreateWindowEx(exStyle, _T("LISTBOX"), NULL,
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233 wstyle | WS_CHILD,
234 0, 0, 0, 0,
235 (HWND)parent->GetHWND(), (HMENU)m_windowId,
236 wxGetInstance(), NULL);
1c089c47 237
837e5743 238 wxCHECK_MSG( m_hWnd, FALSE, _T("Failed to create listbox") );
1c089c47 239
1f112209 240#if wxUSE_CTL3D
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241 if (want3D)
242 {
a23fd0e1 243 Ctl3dSubclassCtl(GetHwnd());
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244 m_useCtl3D = TRUE;
245 }
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246#endif
247
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248 // Subclass again to catch messages
249 SubclassWin(m_hWnd);
2bda0e17 250
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251 size_t ui;
252 for (ui = 0; ui < (size_t)n; ui++) {
253 Append(choices[ui]);
2bda0e17 254 }
2bda0e17 255
dd3c394a 256 if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
a23fd0e1 257 SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);
2bda0e17 258
dd3c394a 259 SetFont(parent->GetFont());
2bda0e17 260
dd3c394a 261 SetSize(x, y, width, height);
2bda0e17 262
dd3c394a 263 Show(TRUE);
1c089c47 264
dd3c394a 265 return TRUE;
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266}
267
bfc6fde4 268wxListBox::~wxListBox()
2bda0e17 269{
47d67540 270#if wxUSE_OWNER_DRAWN
c86f1403 271 size_t uiCount = m_aItems.Count();
2bda0e17 272 while ( uiCount-- != 0 ) {
dd3c394a 273 delete m_aItems[uiCount];
2bda0e17 274 }
dd3c394a 275#endif // wxUSE_OWNER_DRAWN
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276}
277
bfc6fde4 278void wxListBox::SetupColours()
2bda0e17 279{
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280 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
281 SetForegroundColour(GetParent()->GetForegroundColour());
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282}
283
debe6624 284void wxListBox::SetFirstItem(int N)
2bda0e17 285{
dd3c394a 286 wxCHECK_RET( N >= 0 && N < m_noItems,
837e5743 287 _T("invalid index in wxListBox::SetFirstItem") );
dd3c394a 288
a23fd0e1 289 SendMessage(GetHwnd(),LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ;
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290}
291
292void wxListBox::SetFirstItem(const wxString& s)
293{
dd3c394a 294 int N = FindString(s) ;
2bda0e17 295
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296 if ( N >= 0 )
297 SetFirstItem(N) ;
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298}
299
debe6624 300void wxListBox::Delete(int N)
2bda0e17 301{
dd3c394a 302 wxCHECK_RET( N >= 0 && N < m_noItems,
837e5743 303 _T("invalid index in wxListBox::Delete") );
dd3c394a 304
a23fd0e1 305 SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
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306 m_noItems--;
307
308 SetHorizontalExtent("");
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309}
310
311void wxListBox::Append(const wxString& item)
312{
a23fd0e1 313 int index = ListBox_AddString(GetHwnd(), item);
dd3c394a 314 m_noItems ++;
2bda0e17 315
47d67540 316#if wxUSE_OWNER_DRAWN
2bda0e17 317 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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318 wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
319 pNewItem->SetName(item);
320 m_aItems.Add(pNewItem);
a23fd0e1 321 ListBox_SetItemData(GetHwnd(), index, pNewItem);
2bda0e17 322 }
1c089c47 323#endif
2bda0e17 324
dd3c394a 325 SetHorizontalExtent(item);
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326}
327
b23198ab 328void wxListBox::Append(const wxString& item, void *Client_data)
2bda0e17 329{
a23fd0e1 330 int index = ListBox_AddString(GetHwnd(), item);
dd3c394a 331 m_noItems ++;
2bda0e17 332
47d67540 333#if wxUSE_OWNER_DRAWN
2bda0e17 334 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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335 // client data must be pointer to wxOwnerDrawn, otherwise we would crash
336 // in OnMeasure/OnDraw.
837e5743 337 wxFAIL_MSG(_T("Can't use client data with owner-drawn listboxes"));
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338 }
339 else
1c089c47 340#endif
2bda0e17 341
a23fd0e1 342 ListBox_SetItemData(GetHwnd(), index, Client_data);
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343
344 SetHorizontalExtent(item);
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345}
346
b23198ab 347void wxListBox::Set(int n, const wxString *choices, void** clientData)
2bda0e17 348{
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349 ShowWindow(GetHwnd(), SW_HIDE);
350 ListBox_ResetContent(GetHwnd());
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351 int i;
352 for (i = 0; i < n; i++)
353 {
a23fd0e1 354 ListBox_AddString(GetHwnd(), choices[i]);
dd3c394a 355 if ( clientData )
a23fd0e1 356 ListBox_SetItemData(GetHwnd(), i, clientData[i]);
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357 }
358 m_noItems = n;
2bda0e17 359
47d67540 360#if wxUSE_OWNER_DRAWN
2bda0e17 361 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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362 // first delete old items
363 size_t ui = m_aItems.Count();
364 while ( ui-- != 0 ) {
365 delete m_aItems[ui];
366 }
367 m_aItems.Empty();
368
369 // then create new ones
370 for (ui = 0; ui < (size_t)n; ui++) {
371 wxOwnerDrawn *pNewItem = CreateItem(ui);
372 pNewItem->SetName(choices[ui]);
373 m_aItems.Add(pNewItem);
a23fd0e1 374 ListBox_SetItemData(GetHwnd(), ui, pNewItem);
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375
376 wxASSERT_MSG(clientData[ui] == NULL,
837e5743 377 _T("Can't use client data with owner-drawn listboxes"));
dd3c394a 378 }
2bda0e17 379 }
1c089c47 380#endif
2bda0e17 381
dd3c394a 382 SetHorizontalExtent("");
a23fd0e1 383 ShowWindow(GetHwnd(), SW_SHOW);
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384}
385
386int wxListBox::FindString(const wxString& s) const
387{
a23fd0e1 388 int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s);
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389 if (pos == LB_ERR)
390 return -1;
391 else
392 return pos;
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393}
394
bfc6fde4 395void wxListBox::Clear()
2bda0e17 396{
a23fd0e1 397 ListBox_ResetContent(GetHwnd());
2bda0e17 398
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399#if wxUSE_OWNER_DRAWN
400 size_t uiCount = m_aItems.Count();
401 while ( uiCount-- != 0 ) {
402 delete m_aItems[uiCount];
403 }
404
405 m_aItems.Clear();
406#endif // wxUSE_OWNER_DRAWN
407
408 m_noItems = 0;
a23fd0e1 409 ListBox_GetHorizontalExtent(GetHwnd());
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410}
411
debe6624 412void wxListBox::SetSelection(int N, bool select)
2bda0e17 413{
dd3c394a 414 wxCHECK_RET( N >= 0 && N < m_noItems,
837e5743 415 _T("invalid index in wxListBox::SetSelection") );
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416
417 if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
a23fd0e1 418 SendMessage(GetHwnd(), LB_SETSEL, select, N);
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419 else
420 {
421 int N1 = N;
422 if (!select)
423 N1 = -1;
a23fd0e1 424 SendMessage(GetHwnd(), LB_SETCURSEL, N1, 0);
dd3c394a 425 }
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426}
427
debe6624 428bool wxListBox::Selected(int N) const
2bda0e17 429{
dd3c394a 430 wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
837e5743 431 _T("invalid index in wxListBox::Selected") );
dd3c394a 432
a23fd0e1 433 return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
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434}
435
debe6624 436void wxListBox::Deselect(int N)
2bda0e17 437{
dd3c394a 438 wxCHECK_RET( N >= 0 && N < m_noItems,
837e5743 439 _T("invalid index in wxListBox::Deselect") );
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440
441 if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
a23fd0e1 442 SendMessage(GetHwnd(), LB_SETSEL, FALSE, N);
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443}
444
b23198ab 445void *wxListBox::GetClientData(int N) const
2bda0e17 446{
dd3c394a 447 wxCHECK_MSG( N >= 0 && N < m_noItems, NULL,
837e5743 448 _T("invalid index in wxListBox::GetClientData") );
dd3c394a 449
837e5743 450 return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, N, 0);
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451}
452
b23198ab 453void wxListBox::SetClientData(int N, void *Client_data)
2bda0e17 454{
dd3c394a 455 wxCHECK_RET( N >= 0 && N < m_noItems,
837e5743 456 _T("invalid index in wxListBox::SetClientData") );
dd3c394a 457
a23fd0e1 458 if ( ListBox_SetItemData(GetHwnd(), N, Client_data) == LB_ERR )
837e5743 459 wxLogDebug(_T("LB_SETITEMDATA failed"));
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460}
461
462// Return number of selections and an array of selected integers
14483330 463int wxListBox::GetSelections(wxArrayInt& aSelections) const
2bda0e17 464{
dd3c394a 465 aSelections.Empty();
14483330 466
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467 if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
468 {
a23fd0e1 469 int no_sel = ListBox_GetSelCount(GetHwnd());
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470 if (no_sel != 0) {
471 int *selections = new int[no_sel];
a23fd0e1 472 if ( ListBox_GetSelItems(GetHwnd(), no_sel, selections) == LB_ERR ) {
837e5743 473 wxFAIL_MSG(_T("This listbox can't have single-selection style!"));
dd3c394a 474 }
14483330 475
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476 aSelections.Alloc(no_sel);
477 for ( int n = 0; n < no_sel; n++ )
478 aSelections.Add(selections[n]);
14483330 479
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480 delete [] selections;
481 }
14483330 482
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483 return no_sel;
484 }
485 else // single-selection listbox
486 {
a23fd0e1 487 aSelections.Add(ListBox_GetCurSel(GetHwnd()));
14483330 488
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489 return 1;
490 }
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491}
492
493// Get single selection, for single choice list items
14483330 494int wxListBox::GetSelection() const
2bda0e17 495{
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496 wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) &&
497 !(m_windowStyle & wxLB_EXTENDED),
498 -1,
837e5743
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499 _T("GetSelection() can't be used with multiple-selection "
500 "listboxes, use GetSelections() instead.") );
14483330 501
a23fd0e1 502 return ListBox_GetCurSel(GetHwnd());
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503}
504
505// Find string for position
debe6624 506wxString wxListBox::GetString(int N) const
2bda0e17 507{
dd3c394a 508 wxCHECK_MSG( N >= 0 && N < m_noItems, "",
837e5743 509 _T("invalid index in wxListBox::GetClientData") );
dd3c394a 510
a23fd0e1 511 int len = ListBox_GetTextLen(GetHwnd(), N);
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512
513 // +1 for terminating NUL
514 wxString result;
a23fd0e1 515 ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1));
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516 result.UngetWriteBuf();
517
518 return result;
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519}
520
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521// Windows-specific code to set the horizontal extent of the listbox, if
522// necessary. If s is non-NULL, it's used to calculate the horizontal extent.
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523// Otherwise, all strings are used.
524void wxListBox::SetHorizontalExtent(const wxString& s)
525{
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526 // Only necessary if we want a horizontal scrollbar
527 if (!(m_windowStyle & wxHSCROLL))
528 return;
529 TEXTMETRIC lpTextMetric;
530
837e5743 531 if (s != _T(""))
2bda0e17 532 {
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533 int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L);
534 HDC dc = GetWindowDC(GetHwnd());
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535 HFONT oldFont = 0;
536 if (GetFont().Ok() && GetFont().GetResourceHandle())
537 oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
538
539 GetTextMetrics(dc, &lpTextMetric);
540 SIZE extentXY;
837e5743 541 ::GetTextExtentPoint(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY);
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542 int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
543
544 if (oldFont)
545 ::SelectObject(dc, oldFont);
546
a23fd0e1 547 ReleaseDC(GetHwnd(), dc);
dd3c394a 548 if (extentX > existingExtent)
a23fd0e1 549 SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
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550 return;
551 }
552 else
553 {
554 int largestExtent = 0;
a23fd0e1 555 HDC dc = GetWindowDC(GetHwnd());
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556 HFONT oldFont = 0;
557 if (GetFont().Ok() && GetFont().GetResourceHandle())
558 oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
559
560 GetTextMetrics(dc, &lpTextMetric);
561 int i;
562 for (i = 0; i < m_noItems; i++)
563 {
a23fd0e1 564 int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer);
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565 wxBuffer[len] = 0;
566 SIZE extentXY;
837e5743 567 ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY);
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568 int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
569 if (extentX > largestExtent)
570 largestExtent = extentX;
571 }
572 if (oldFont)
573 ::SelectObject(dc, oldFont);
574
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575 ReleaseDC(GetHwnd(), dc);
576 SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
2bda0e17 577 }
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578}
579
580void
debe6624 581wxListBox::InsertItems(int nItems, const wxString items[], int pos)
2bda0e17 582{
dd3c394a 583 wxCHECK_RET( pos >= 0 && pos <= m_noItems,
837e5743 584 _T("invalid index in wxListBox::InsertItems") );
2bda0e17 585
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586 int i;
587 for (i = 0; i < nItems; i++)
a23fd0e1 588 ListBox_InsertString(GetHwnd(), i + pos, items[i]);
dd3c394a 589 m_noItems += nItems;
2bda0e17 590
837e5743 591 SetHorizontalExtent(_T(""));
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592}
593
debe6624 594void wxListBox::SetString(int N, const wxString& s)
2bda0e17 595{
dd3c394a 596 wxCHECK_RET( N >= 0 && N < m_noItems,
837e5743 597 _T("invalid index in wxListBox::SetString") );
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598
599 int sel = -1;
600 if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED))
601 sel = GetSelection();
602
b23198ab 603 void *oldData = wxListBox::GetClientData(N);
dd3c394a 604
a23fd0e1 605 SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
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606
607 int newN = N;
608 if (N == (m_noItems - 1))
609 newN = -1;
610
837e5743 611 SendMessage(GetHwnd(), LB_INSERTSTRING, newN, (LPARAM) (const wxChar *)s);
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612 if (oldData)
613 wxListBox::SetClientData(N, oldData);
614
615 // Selection may have changed
616 if (sel >= 0)
617 SetSelection(sel);
2bda0e17 618
47d67540 619#if wxUSE_OWNER_DRAWN
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620 if ( m_windowStyle & wxLB_OWNERDRAW )
621 // update item's text
622 m_aItems[N]->SetName(s);
e1d1da03 623#endif //USE_OWNER_DRAWN
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624}
625
bfc6fde4 626int wxListBox::Number () const
2bda0e17 627{
dd3c394a 628 return m_noItems;
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629}
630
631// For single selection items only
bfc6fde4 632wxString wxListBox::GetStringSelection () const
2bda0e17 633{
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634 int sel = GetSelection ();
635 if (sel > -1)
636 return this->GetString (sel);
637 else
638 return wxString("");
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639}
640
debe6624 641bool wxListBox::SetStringSelection (const wxString& s, bool flag)
2bda0e17 642{
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643 int sel = FindString (s);
644 if (sel > -1)
2bda0e17 645 {
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646 SetSelection (sel, flag);
647 return TRUE;
2bda0e17 648 }
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649 else
650 return FALSE;
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651}
652
653// Is this the right thing? Won't setselection generate a command
654// event too? No! It'll just generate a setselection event.
655// But we still can't have this being called whenever a real command
656// is generated, because it sets the selection, which will already
657// have been done! (Unless we have an optional argument for calling
658// by the actual window system, or a separate function, ProcessCommand)
659void wxListBox::Command (wxCommandEvent & event)
660{
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661 if (event.m_extraLong)
662 SetSelection (event.m_commandInt);
663 else
2bda0e17 664 {
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665 Deselect (event.m_commandInt);
666 return;
2bda0e17 667 }
dd3c394a 668 ProcessCommand (event);
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669}
670
debe6624 671WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
dd3c394a 672 WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
2bda0e17 673{
1f112209 674#if wxUSE_CTL3D
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675 if ( m_useCtl3D )
676 {
677 HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
678 return (WXHBRUSH) hbrush;
679 }
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680#endif
681
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682 if (GetParent()->GetTransparentBackground())
683 SetBkMode((HDC) pDC, TRANSPARENT);
684 else
685 SetBkMode((HDC) pDC, OPAQUE);
2bda0e17 686
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687 ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
688 ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
2bda0e17 689
dd3c394a 690 wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
2bda0e17 691
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692 // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
693 // has a zero usage count.
694 backgroundBrush->RealizeResource();
695 return (WXHBRUSH) backgroundBrush->GetResourceHandle();
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696}
697
698long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
699{
dd3c394a 700 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
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701}
702
47d67540 703#if wxUSE_OWNER_DRAWN
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704
705// drawing
706// -------
707
708// space beneath/above each row in pixels
709// "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
710#define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1)
711
712// the height is the same for all items
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713// TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes
714
715// NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
716// message is not yet sent when we get here!
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717bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
718{
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719 // only owner-drawn control should receive this message
720 wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
2bda0e17 721
dd3c394a 722 MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
2bda0e17 723
dd3c394a 724 wxDC dc;
837e5743 725 dc.SetHDC((WXHDC)CreateIC(_T("DISPLAY"), NULL, NULL, 0));
dd3c394a 726 dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
2bda0e17 727
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728 pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
729 pStruct->itemWidth = dc.GetCharWidth();
2bda0e17 730
dd3c394a 731 return TRUE;
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732}
733
734// forward the message to the appropriate item
735bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
736{
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737 // only owner-drawn control should receive this message
738 wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
739
740 DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
741
a23fd0e1 742 long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID);
2bda0e17 743
dd3c394a 744 wxCHECK( data && (data != LB_ERR), FALSE );
2bda0e17 745
dd3c394a 746 wxListBoxItem *pItem = (wxListBoxItem *)data;
2bda0e17 747
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748 wxDC dc;
749 dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
750 wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top),
751 wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom));
2bda0e17 752
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753 return pItem->OnDrawItem(dc, rect,
754 (wxOwnerDrawn::wxODAction)pStruct->itemAction,
755 (wxOwnerDrawn::wxODStatus)pStruct->itemState);
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756}
757
758#endif
dd3c394a 759 // wxUSE_OWNER_DRAWN