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[wxWidgets.git] / src / msw / listbox.cpp
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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
23#ifndef WX_PRECOMP
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24 #include "wx/listbox.h"
25 #include "wx/settings.h"
26 #include "wx/brush.h"
27 #include "wx/font.h"
28 #include "wx/dc.h"
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29#endif
30
31#include "wx/msw/private.h"
32
33#include <windows.h>
34#include <windowsx.h>
35
57c208c5 36#ifndef __TWIN32__
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37 #ifdef __GNUWIN32__
38 #include <wx/msw/gnuwin32/extra.h>
39 #endif
57c208c5 40#endif
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41
42#ifdef GetCharWidth
dd3c394a 43 #undef GetCharWidth
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44#endif
45
47d67540 46#if wxUSE_OWNER_DRAWN
dd3c394a 47 #include "wx/ownerdrw.h"
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48#endif
49
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50#include "wx/dynarray.h"
51#include "wx/log.h"
52
2bda0e17 53#if !USE_SHARED_LIBRARY
dd3c394a 54 IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
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55#endif
56
57// ============================================================================
58// list box item declaration and implementation
59// ============================================================================
60
47d67540 61#if wxUSE_OWNER_DRAWN
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62
63class wxListBoxItem : public wxOwnerDrawn
64{
65public:
dd3c394a 66 wxListBoxItem(const wxString& str = "");
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67};
68
dd3c394a 69wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
2bda0e17 70{
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71 // no bitmaps/checkmarks
72 SetMarginWidth(0);
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73}
74
c86f1403 75wxOwnerDrawn *wxListBox::CreateItem(size_t n)
2bda0e17 76{
dd3c394a 77 return new wxListBoxItem();
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78}
79
80#endif //USE_OWNER_DRAWN
81
82// ============================================================================
83// list box control implementation
84// ============================================================================
85
debe6624 86bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
2bda0e17 87{
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88 /*
89 if (param == LBN_SELCANCEL)
90 {
91 event.extraLong = FALSE;
92 }
93 */
94 if (param == LBN_SELCHANGE)
2bda0e17 95 {
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96 wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
97 wxArrayInt aSelections;
98 int count = GetSelections(aSelections);
99 if ( count > 0 )
100 {
101 event.m_commandInt = aSelections[0] ;
102 event.m_clientData = GetClientData(event.m_commandInt);
103 wxString str(GetString(event.m_commandInt));
104 if (str != "")
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105 {
106 event.m_commandString = str;
107 }
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108 }
109 else
110 {
111 event.m_commandInt = -1 ;
aeab6775 112 event.m_commandString.Empty();
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113 }
114
115 event.SetEventObject( this );
116 ProcessCommand(event);
dd3c394a 117 return TRUE;
2bda0e17 118 }
dd3c394a 119 else if (param == LBN_DBLCLK)
2bda0e17 120 {
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121 wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
122 event.SetEventObject( this );
123 GetEventHandler()->ProcessEvent(event) ;
124 return TRUE;
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125 }
126
dd3c394a 127 return FALSE;
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128}
129
dd3c394a 130 // Listbox item
bfc6fde4 131wxListBox::wxListBox()
2bda0e17 132{
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133 m_noItems = 0;
134 m_selected = 0;
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135}
136
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137bool wxListBox::Create(wxWindow *parent,
138 wxWindowID id,
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139 const wxPoint& pos,
140 const wxSize& size,
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141 int n, const wxString choices[],
142 long style,
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143 const wxValidator& validator,
144 const wxString& name)
145{
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146 m_noItems = 0;
147 m_hWnd = 0;
148 m_selected = 0;
2bda0e17 149
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150 SetName(name);
151 SetValidator(validator);
2bda0e17 152
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153 if (parent)
154 parent->AddChild(this);
2bda0e17 155
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156 wxSystemSettings settings;
157 SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
158 SetForegroundColour(parent->GetForegroundColour());
2bda0e17 159
dd3c394a 160 m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
2bda0e17 161
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162 int x = pos.x;
163 int y = pos.y;
164 int width = size.x;
165 int height = size.y;
166 m_windowStyle = style;
2bda0e17 167
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168 DWORD wstyle = WS_VSCROLL | WS_TABSTOP | LBS_NOTIFY | LBS_HASSTRINGS;
169 if (m_windowStyle & wxLB_MULTIPLE)
170 wstyle |= LBS_MULTIPLESEL;
171 else if (m_windowStyle & wxLB_EXTENDED)
172 wstyle |= LBS_EXTENDEDSEL;
2bda0e17 173
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174 if (m_windowStyle & wxLB_ALWAYS_SB)
175 wstyle |= LBS_DISABLENOSCROLL ;
176 if (m_windowStyle & wxLB_HSCROLL)
177 wstyle |= WS_HSCROLL;
178 if (m_windowStyle & wxLB_SORT)
179 wstyle |= LBS_SORT;
2bda0e17 180
47d67540 181#if wxUSE_OWNER_DRAWN
2bda0e17 182 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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183 // we don't support LBS_OWNERDRAWVARIABLE yet
184 wstyle |= LBS_OWNERDRAWFIXED;
2bda0e17 185 }
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186#endif
187
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188 // Without this style, you get unexpected heights, so e.g. constraint layout
189 // doesn't work properly
190 wstyle |= LBS_NOINTEGRALHEIGHT;
191
192 bool want3D;
193 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
2bda0e17 194
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195 // Even with extended styles, need to combine with WS_BORDER
196 // for them to look right.
197 if ( want3D || wxStyleHasBorder(m_windowStyle) )
198 {
199 wstyle |= WS_BORDER;
200 }
2bda0e17 201
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202 m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "LISTBOX", NULL,
203 wstyle | WS_CHILD,
204 0, 0, 0, 0,
205 (HWND)parent->GetHWND(), (HMENU)m_windowId,
206 wxGetInstance(), NULL);
1c089c47 207
dd3c394a 208 wxCHECK_MSG( m_hWnd, FALSE, "Failed to create listbox" );
1c089c47 209
1f112209 210#if wxUSE_CTL3D
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211 if (want3D)
212 {
a23fd0e1 213 Ctl3dSubclassCtl(GetHwnd());
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214 m_useCtl3D = TRUE;
215 }
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216#endif
217
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218 // Subclass again to catch messages
219 SubclassWin(m_hWnd);
2bda0e17 220
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221 size_t ui;
222 for (ui = 0; ui < (size_t)n; ui++) {
223 Append(choices[ui]);
2bda0e17 224 }
2bda0e17 225
dd3c394a 226 if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
a23fd0e1 227 SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);
2bda0e17 228
dd3c394a 229 SetFont(parent->GetFont());
2bda0e17 230
dd3c394a 231 SetSize(x, y, width, height);
2bda0e17 232
dd3c394a 233 Show(TRUE);
1c089c47 234
dd3c394a 235 return TRUE;
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236}
237
bfc6fde4 238wxListBox::~wxListBox()
2bda0e17 239{
47d67540 240#if wxUSE_OWNER_DRAWN
c86f1403 241 size_t uiCount = m_aItems.Count();
2bda0e17 242 while ( uiCount-- != 0 ) {
dd3c394a 243 delete m_aItems[uiCount];
2bda0e17 244 }
dd3c394a 245#endif // wxUSE_OWNER_DRAWN
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246}
247
bfc6fde4 248void wxListBox::SetupColours()
2bda0e17 249{
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250 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
251 SetForegroundColour(GetParent()->GetForegroundColour());
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252}
253
debe6624 254void wxListBox::SetFirstItem(int N)
2bda0e17 255{
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256 wxCHECK_RET( N >= 0 && N < m_noItems,
257 "invalid index in wxListBox::SetFirstItem" );
258
a23fd0e1 259 SendMessage(GetHwnd(),LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ;
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260}
261
262void wxListBox::SetFirstItem(const wxString& s)
263{
dd3c394a 264 int N = FindString(s) ;
2bda0e17 265
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266 if ( N >= 0 )
267 SetFirstItem(N) ;
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268}
269
debe6624 270void wxListBox::Delete(int N)
2bda0e17 271{
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272 wxCHECK_RET( N >= 0 && N < m_noItems,
273 "invalid index in wxListBox::Delete" );
274
a23fd0e1 275 SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
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276 m_noItems--;
277
278 SetHorizontalExtent("");
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279}
280
281void wxListBox::Append(const wxString& item)
282{
a23fd0e1 283 int index = ListBox_AddString(GetHwnd(), item);
dd3c394a 284 m_noItems ++;
2bda0e17 285
47d67540 286#if wxUSE_OWNER_DRAWN
2bda0e17 287 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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288 wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
289 pNewItem->SetName(item);
290 m_aItems.Add(pNewItem);
a23fd0e1 291 ListBox_SetItemData(GetHwnd(), index, pNewItem);
2bda0e17 292 }
1c089c47 293#endif
2bda0e17 294
dd3c394a 295 SetHorizontalExtent(item);
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296}
297
298void wxListBox::Append(const wxString& item, char *Client_data)
299{
a23fd0e1 300 int index = ListBox_AddString(GetHwnd(), item);
dd3c394a 301 m_noItems ++;
2bda0e17 302
47d67540 303#if wxUSE_OWNER_DRAWN
2bda0e17 304 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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305 // client data must be pointer to wxOwnerDrawn, otherwise we would crash
306 // in OnMeasure/OnDraw.
307 wxFAIL_MSG("Can't use client data with owner-drawn listboxes");
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308 }
309 else
1c089c47 310#endif
2bda0e17 311
a23fd0e1 312 ListBox_SetItemData(GetHwnd(), index, Client_data);
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313
314 SetHorizontalExtent(item);
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315}
316
debe6624 317void wxListBox::Set(int n, const wxString *choices, char** clientData)
2bda0e17 318{
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319 ShowWindow(GetHwnd(), SW_HIDE);
320 ListBox_ResetContent(GetHwnd());
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321 int i;
322 for (i = 0; i < n; i++)
323 {
a23fd0e1 324 ListBox_AddString(GetHwnd(), choices[i]);
dd3c394a 325 if ( clientData )
a23fd0e1 326 ListBox_SetItemData(GetHwnd(), i, clientData[i]);
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327 }
328 m_noItems = n;
2bda0e17 329
47d67540 330#if wxUSE_OWNER_DRAWN
2bda0e17 331 if ( m_windowStyle & wxLB_OWNERDRAW ) {
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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
340 for (ui = 0; ui < (size_t)n; ui++) {
341 wxOwnerDrawn *pNewItem = CreateItem(ui);
342 pNewItem->SetName(choices[ui]);
343 m_aItems.Add(pNewItem);
a23fd0e1 344 ListBox_SetItemData(GetHwnd(), ui, pNewItem);
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345
346 wxASSERT_MSG(clientData[ui] == NULL,
347 "Can't use client data with owner-drawn listboxes");
348 }
2bda0e17 349 }
1c089c47 350#endif
2bda0e17 351
dd3c394a 352 SetHorizontalExtent("");
a23fd0e1 353 ShowWindow(GetHwnd(), SW_SHOW);
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354}
355
356int wxListBox::FindString(const wxString& s) const
357{
a23fd0e1 358 int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s);
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359 if (pos == LB_ERR)
360 return -1;
361 else
362 return pos;
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363}
364
bfc6fde4 365void wxListBox::Clear()
2bda0e17 366{
a23fd0e1 367 ListBox_ResetContent(GetHwnd());
2bda0e17 368
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369#if wxUSE_OWNER_DRAWN
370 size_t uiCount = m_aItems.Count();
371 while ( uiCount-- != 0 ) {
372 delete m_aItems[uiCount];
373 }
374
375 m_aItems.Clear();
376#endif // wxUSE_OWNER_DRAWN
377
378 m_noItems = 0;
a23fd0e1 379 ListBox_GetHorizontalExtent(GetHwnd());
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380}
381
debe6624 382void wxListBox::SetSelection(int N, bool select)
2bda0e17 383{
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384 wxCHECK_RET( N >= 0 && N < m_noItems,
385 "invalid index in wxListBox::SetSelection" );
386
387 if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
a23fd0e1 388 SendMessage(GetHwnd(), LB_SETSEL, select, N);
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389 else
390 {
391 int N1 = N;
392 if (!select)
393 N1 = -1;
a23fd0e1 394 SendMessage(GetHwnd(), LB_SETCURSEL, N1, 0);
dd3c394a 395 }
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396}
397
debe6624 398bool wxListBox::Selected(int N) const
2bda0e17 399{
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400 wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
401 "invalid index in wxListBox::Selected" );
402
a23fd0e1 403 return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
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404}
405
debe6624 406void wxListBox::Deselect(int N)
2bda0e17 407{
dd3c394a
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408 wxCHECK_RET( N >= 0 && N < m_noItems,
409 "invalid index in wxListBox::Deselect" );
410
411 if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
a23fd0e1 412 SendMessage(GetHwnd(), LB_SETSEL, FALSE, N);
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413}
414
debe6624 415char *wxListBox::GetClientData(int N) const
2bda0e17 416{
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417 wxCHECK_MSG( N >= 0 && N < m_noItems, NULL,
418 "invalid index in wxListBox::GetClientData" );
419
a23fd0e1 420 return (char *)SendMessage(GetHwnd(), LB_GETITEMDATA, N, 0);
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421}
422
debe6624 423void wxListBox::SetClientData(int N, char *Client_data)
2bda0e17 424{
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425 wxCHECK_RET( N >= 0 && N < m_noItems,
426 "invalid index in wxListBox::SetClientData" );
427
a23fd0e1 428 if ( ListBox_SetItemData(GetHwnd(), N, Client_data) == LB_ERR )
dd3c394a 429 wxLogDebug("LB_SETITEMDATA failed");
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430}
431
432// Return number of selections and an array of selected integers
14483330 433int wxListBox::GetSelections(wxArrayInt& aSelections) const
2bda0e17 434{
dd3c394a 435 aSelections.Empty();
14483330 436
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437 if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
438 {
a23fd0e1 439 int no_sel = ListBox_GetSelCount(GetHwnd());
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440 if (no_sel != 0) {
441 int *selections = new int[no_sel];
a23fd0e1 442 if ( ListBox_GetSelItems(GetHwnd(), no_sel, selections) == LB_ERR ) {
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443 wxFAIL_MSG("This listbox can't have single-selection style!");
444 }
14483330 445
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446 aSelections.Alloc(no_sel);
447 for ( int n = 0; n < no_sel; n++ )
448 aSelections.Add(selections[n]);
14483330 449
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450 delete [] selections;
451 }
14483330 452
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453 return no_sel;
454 }
455 else // single-selection listbox
456 {
a23fd0e1 457 aSelections.Add(ListBox_GetCurSel(GetHwnd()));
14483330 458
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459 return 1;
460 }
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461}
462
463// Get single selection, for single choice list items
14483330 464int wxListBox::GetSelection() const
2bda0e17 465{
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466 wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) &&
467 !(m_windowStyle & wxLB_EXTENDED),
468 -1,
469 "GetSelection() can't be used with multiple-selection "
470 "listboxes, use GetSelections() instead." );
14483330 471
a23fd0e1 472 return ListBox_GetCurSel(GetHwnd());
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473}
474
475// Find string for position
debe6624 476wxString wxListBox::GetString(int N) const
2bda0e17 477{
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478 wxCHECK_MSG( N >= 0 && N < m_noItems, "",
479 "invalid index in wxListBox::GetClientData" );
480
a23fd0e1 481 int len = ListBox_GetTextLen(GetHwnd(), N);
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482
483 // +1 for terminating NUL
484 wxString result;
a23fd0e1 485 ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1));
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486 result.UngetWriteBuf();
487
488 return result;
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489}
490
bfc6fde4 491void wxListBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
2bda0e17 492{
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493 int currentX, currentY;
494 GetPosition(&currentX, &currentY);
2bda0e17 495
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496 int x1 = x;
497 int y1 = y;
498 int w1 = width;
499 int h1 = height;
2bda0e17 500
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501 if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
502 x1 = currentX;
503 if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
504 y1 = currentY;
2bda0e17 505
dd3c394a 506 AdjustForParentClientOrigin(x1, y1, sizeFlags);
81d66cf3 507
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508 // If we're prepared to use the existing size, then...
509 if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
510 {
511 GetSize(&w1, &h1);
512 }
2bda0e17 513
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514 int cx; // button font dimensions
515 int cy;
2bda0e17 516
dd3c394a 517 wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont());
2bda0e17 518
dd3c394a 519 float control_width, control_height, control_x, control_y;
2bda0e17 520
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521 // Deal with default size (using -1 values)
522 if (w1<=0)
523 w1 = DEFAULT_ITEM_WIDTH;
2bda0e17 524
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525 if (h1<=0)
526 h1 = DEFAULT_ITEM_HEIGHT;
2bda0e17 527
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528 control_x = (float)x1;
529 control_y = (float)y1;
530 control_width = (float)w1;
531 control_height = (float)h1;
2bda0e17 532
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533 // Calculations may have made size too small
534 if (control_height <= 0)
535 control_height = (float)DEFAULT_ITEM_HEIGHT;
2bda0e17 536
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537 if (control_width <= 0)
538 control_width = (float)DEFAULT_ITEM_WIDTH;
2bda0e17 539
a23fd0e1 540 MoveWindow(GetHwnd(),
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541 (int)control_x, (int)control_y,
542 (int)control_width, (int)control_height,
543 TRUE);
2bda0e17 544
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545}
546
547// Windows-specific code to set the horizontal extent of
548// the listbox, if necessary. If s is non-NULL, it's
549// used to calculate the horizontal extent.
550// Otherwise, all strings are used.
551void wxListBox::SetHorizontalExtent(const wxString& s)
552{
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553 // Only necessary if we want a horizontal scrollbar
554 if (!(m_windowStyle & wxHSCROLL))
555 return;
556 TEXTMETRIC lpTextMetric;
557
558 if (s != "")
2bda0e17 559 {
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560 int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L);
561 HDC dc = GetWindowDC(GetHwnd());
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562 HFONT oldFont = 0;
563 if (GetFont().Ok() && GetFont().GetResourceHandle())
564 oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
565
566 GetTextMetrics(dc, &lpTextMetric);
567 SIZE extentXY;
568 ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY);
569 int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
570
571 if (oldFont)
572 ::SelectObject(dc, oldFont);
573
a23fd0e1 574 ReleaseDC(GetHwnd(), dc);
dd3c394a 575 if (extentX > existingExtent)
a23fd0e1 576 SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
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577 return;
578 }
579 else
580 {
581 int largestExtent = 0;
a23fd0e1 582 HDC dc = GetWindowDC(GetHwnd());
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583 HFONT oldFont = 0;
584 if (GetFont().Ok() && GetFont().GetResourceHandle())
585 oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
586
587 GetTextMetrics(dc, &lpTextMetric);
588 int i;
589 for (i = 0; i < m_noItems; i++)
590 {
a23fd0e1 591 int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer);
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592 wxBuffer[len] = 0;
593 SIZE extentXY;
594 ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY);
595 int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
596 if (extentX > largestExtent)
597 largestExtent = extentX;
598 }
599 if (oldFont)
600 ::SelectObject(dc, oldFont);
601
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602 ReleaseDC(GetHwnd(), dc);
603 SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
2bda0e17 604 }
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605}
606
607void
debe6624 608wxListBox::InsertItems(int nItems, const wxString items[], int pos)
2bda0e17 609{
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610 wxCHECK_RET( pos >= 0 && pos <= m_noItems,
611 "invalid index in wxListBox::InsertItems" );
2bda0e17 612
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613 int i;
614 for (i = 0; i < nItems; i++)
a23fd0e1 615 ListBox_InsertString(GetHwnd(), i + pos, items[i]);
dd3c394a 616 m_noItems += nItems;
2bda0e17 617
dd3c394a 618 SetHorizontalExtent("");
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619}
620
debe6624 621void wxListBox::SetString(int N, const wxString& s)
2bda0e17 622{
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623 wxCHECK_RET( N >= 0 && N < m_noItems,
624 "invalid index in wxListBox::SetString" );
625
626 int sel = -1;
627 if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED))
628 sel = GetSelection();
629
630 char *oldData = (char *)wxListBox::GetClientData(N);
631
a23fd0e1 632 SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
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633
634 int newN = N;
635 if (N == (m_noItems - 1))
636 newN = -1;
637
a23fd0e1 638 SendMessage(GetHwnd(), LB_INSERTSTRING, newN, (LPARAM) (const char *)s);
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639 if (oldData)
640 wxListBox::SetClientData(N, oldData);
641
642 // Selection may have changed
643 if (sel >= 0)
644 SetSelection(sel);
2bda0e17 645
47d67540 646#if wxUSE_OWNER_DRAWN
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647 if ( m_windowStyle & wxLB_OWNERDRAW )
648 // update item's text
649 m_aItems[N]->SetName(s);
e1d1da03 650#endif //USE_OWNER_DRAWN
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651}
652
bfc6fde4 653int wxListBox::Number () const
2bda0e17 654{
dd3c394a 655 return m_noItems;
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656}
657
658// For single selection items only
bfc6fde4 659wxString wxListBox::GetStringSelection () const
2bda0e17 660{
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661 int sel = GetSelection ();
662 if (sel > -1)
663 return this->GetString (sel);
664 else
665 return wxString("");
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666}
667
debe6624 668bool wxListBox::SetStringSelection (const wxString& s, bool flag)
2bda0e17 669{
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670 int sel = FindString (s);
671 if (sel > -1)
2bda0e17 672 {
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673 SetSelection (sel, flag);
674 return TRUE;
2bda0e17 675 }
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676 else
677 return FALSE;
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678}
679
680// Is this the right thing? Won't setselection generate a command
681// event too? No! It'll just generate a setselection event.
682// But we still can't have this being called whenever a real command
683// is generated, because it sets the selection, which will already
684// have been done! (Unless we have an optional argument for calling
685// by the actual window system, or a separate function, ProcessCommand)
686void wxListBox::Command (wxCommandEvent & event)
687{
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688 if (event.m_extraLong)
689 SetSelection (event.m_commandInt);
690 else
2bda0e17 691 {
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692 Deselect (event.m_commandInt);
693 return;
2bda0e17 694 }
dd3c394a 695 ProcessCommand (event);
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696}
697
debe6624 698WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
dd3c394a 699 WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
2bda0e17 700{
1f112209 701#if wxUSE_CTL3D
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702 if ( m_useCtl3D )
703 {
704 HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
705 return (WXHBRUSH) hbrush;
706 }
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707#endif
708
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709 if (GetParent()->GetTransparentBackground())
710 SetBkMode((HDC) pDC, TRANSPARENT);
711 else
712 SetBkMode((HDC) pDC, OPAQUE);
2bda0e17 713
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714 ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
715 ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
2bda0e17 716
dd3c394a 717 wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
2bda0e17 718
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719 // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
720 // has a zero usage count.
721 backgroundBrush->RealizeResource();
722 return (WXHBRUSH) backgroundBrush->GetResourceHandle();
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723}
724
725long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
726{
dd3c394a 727 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
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728}
729
47d67540 730#if wxUSE_OWNER_DRAWN
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731
732// drawing
733// -------
734
735// space beneath/above each row in pixels
736// "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
737#define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1)
738
739// the height is the same for all items
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740// TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes
741
742// NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
743// message is not yet sent when we get here!
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744bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
745{
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746 // only owner-drawn control should receive this message
747 wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
2bda0e17 748
dd3c394a 749 MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
2bda0e17 750
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751 wxDC dc;
752 dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0));
753 dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
2bda0e17 754
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755 pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
756 pStruct->itemWidth = dc.GetCharWidth();
2bda0e17 757
dd3c394a 758 return TRUE;
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759}
760
761// forward the message to the appropriate item
762bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
763{
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764 // only owner-drawn control should receive this message
765 wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
766
767 DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
768
a23fd0e1 769 long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID);
2bda0e17 770
dd3c394a 771 wxCHECK( data && (data != LB_ERR), FALSE );
2bda0e17 772
dd3c394a 773 wxListBoxItem *pItem = (wxListBoxItem *)data;
2bda0e17 774
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775 wxDC dc;
776 dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
777 wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top),
778 wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom));
2bda0e17 779
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780 return pItem->OnDrawItem(dc, rect,
781 (wxOwnerDrawn::wxODAction)pStruct->itemAction,
782 (wxOwnerDrawn::wxODStatus)pStruct->itemState);
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783}
784
785#endif
dd3c394a 786 // wxUSE_OWNER_DRAWN