1/////////////////////////////////////////////////////////////////////////////// 2// Name: src/msw/wince/checklst.cpp 3// Purpose: implementation of wxCheckListBox class 4// Author: Wlodzimierz ABX Skiba 5// Modified by: 6// Created: 30.10.2005 7// RCS-ID: $Id: checklst.cpp 42816 2006-10-31 08:50:17Z RD $ 8// Copyright: (c) Wlodzimierz Skiba 9// Licence: wxWindows licence 10/////////////////////////////////////////////////////////////////////////////// 11 12// ============================================================================ 13// declarations 14// ============================================================================ 15 16// ---------------------------------------------------------------------------- 17// headers 18// ---------------------------------------------------------------------------- 19 20// For compilers that support precompilation, includes "wx.h". 21#include "wx/wxprec.h" 22 23#ifdef __BORLANDC__ 24 #pragma hdrstop 25#endif 26 27#if wxUSE_CHECKLISTBOX 28 29#include "wx/checklst.h" 30 31#ifndef WX_PRECOMP 32 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly" 33#endif 34 35// ============================================================================ 36// implementation 37// ============================================================================ 38 39IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxControl) 40 41// ---------------------------------------------------------------------------- 42// implementation of wxCheckListBox class 43// ---------------------------------------------------------------------------- 44 45// define event table 46// ------------------ 47BEGIN_EVENT_TABLE(wxCheckListBox, wxControl) 48 EVT_SIZE(wxCheckListBox::OnSize) 49END_EVENT_TABLE() 50 51// control creation 52// ---------------- 53 54// def ctor: use Create() to really create the control 55wxCheckListBox::wxCheckListBox() 56{ 57} 58 59// ctor which creates the associated control 60wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id, 61 const wxPoint& pos, const wxSize& size, 62 int nStrings, const wxString choices[], 63 long style, const wxValidator& val, 64 const wxString& name) 65{ 66 Create(parent, id, pos, size, nStrings, choices, style, val, name); 67} 68 69wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id, 70 const wxPoint& pos, const wxSize& size, 71 const wxArrayString& choices, 72 long style, const wxValidator& val, 73 const wxString& name) 74{ 75 Create(parent, id, pos, size, choices, style, val, name); 76} 77 78wxCheckListBox::~wxCheckListBox() 79{ 80 m_itemsClientData.Clear(); 81} 82 83bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id, 84 const wxPoint& pos, const wxSize& size, 85 int n, const wxString choices[], 86 long style, 87 const wxValidator& validator, const wxString& name) 88{ 89 // initialize base class fields 90 if ( !CreateControl(parent, id, pos, size, style, validator, name) ) 91 return false; 92 93 // create the native control 94 if ( !MSWCreateControl(WC_LISTVIEW, wxEmptyString, pos, size) ) 95 { 96 // control creation failed 97 return false; 98 } 99 100 ::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE, 0, 101 LVS_EX_CHECKBOXES | LVS_EX_FULLROWSELECT ); 102 103 // insert single column with checkboxes and labels 104 LV_COLUMN col; 105 wxZeroMemory(col); 106 ListView_InsertColumn(GetHwnd(), 0, &col ); 107 108 ListView_SetItemCount( GetHwnd(), n ); 109 110 // initialize the contents 111 for ( int i = 0; i < n; i++ ) 112 { 113 Append(choices[i]); 114 } 115 116 m_itemsClientData.SetCount(n); 117 118 // now we can compute our best size correctly, so do it if necessary 119 SetInitialSize(size); 120 121 return true; 122} 123 124bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id, 125 const wxPoint& pos, const wxSize& size, 126 const wxArrayString& choices, 127 long style, 128 const wxValidator& validator, const wxString& name) 129{ 130 wxCArrayString chs(choices); 131 return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(), 132 style, validator, name); 133} 134 135WXDWORD wxCheckListBox::MSWGetStyle(long style, WXDWORD *exstyle) const 136{ 137 WXDWORD wstyle = wxControl::MSWGetStyle(style, exstyle); 138 139 wstyle |= LVS_REPORT | LVS_NOCOLUMNHEADER | LVS_NOSORTHEADER; 140 141 return wstyle; 142} 143 144void wxCheckListBox::OnSize(wxSizeEvent& event) 145{ 146 // set width of the column we use to the width of list client area 147 event.Skip(); 148 int w = GetClientSize().x; 149 ListView_SetColumnWidth( GetHwnd(), 0, w ); 150} 151 152// misc overloaded methods 153// ----------------------- 154 155void wxCheckListBox::Delete(unsigned int n) 156{ 157 wxCHECK_RET( IsValid( n ), _T("invalid index in wxCheckListBox::Delete") ); 158 159 if ( !ListView_DeleteItem(GetHwnd(), n) ) 160 { 161 wxLogLastError(_T("ListView_DeleteItem")); 162 } 163 m_itemsClientData.RemoveAt(n); 164} 165 166// check items 167// ----------- 168 169bool wxCheckListBox::IsChecked(unsigned int uiIndex) const 170{ 171 wxCHECK_MSG( IsValid( uiIndex ), false, 172 _T("invalid index in wxCheckListBox::IsChecked") ); 173 174 return (ListView_GetCheckState(((HWND)GetHWND()), uiIndex) != 0); 175} 176 177void wxCheckListBox::Check(unsigned int uiIndex, bool bCheck) 178{ 179 wxCHECK_RET( IsValid( uiIndex ), 180 _T("invalid index in wxCheckListBox::Check") ); 181 182 ListView_SetCheckState(((HWND)GetHWND()), uiIndex, bCheck) 183} 184 185// interface derived from wxListBox and lower classes 186// -------------------------------------------------- 187 188void wxCheckListBox::Clear() 189{ 190 unsigned int n = GetCount(); 191 192 while ( n > 0 ) 193 { 194 n--; 195 Delete(n); 196 } 197 198 m_itemsClientData.Clear(); 199 200 wxCHECK_RET( n == GetCount(), 201 _T("broken wxCheckListBox::Clear()") ); 202} 203 204unsigned int wxCheckListBox::GetCount() const 205{ 206 return (unsigned int)ListView_GetItemCount( (HWND)GetHWND() ); 207} 208 209int wxCheckListBox::GetSelection() const 210{ 211 int i; 212 for (i = 0; (unsigned int)i < GetCount(); i++) 213 { 214 int selState = ListView_GetItemState(GetHwnd(), i, LVIS_SELECTED); 215 if (selState == LVIS_SELECTED) 216 return i; 217 } 218 219 return wxNOT_FOUND; 220} 221 222int wxCheckListBox::GetSelections(wxArrayInt& aSelections) const 223{ 224 int i; 225 for (i = 0; (unsigned int)i < GetCount(); i++) 226 { 227 int selState = ListView_GetItemState(GetHwnd(), i, LVIS_SELECTED); 228 if (selState == LVIS_SELECTED) 229 aSelections.Add(i); 230 } 231 232 return aSelections.GetCount(); 233} 234 235wxString wxCheckListBox::GetString(unsigned int n) const 236{ 237 const int bufSize = 513; 238 wxChar buf[bufSize]; 239 ListView_GetItemText( (HWND)GetHWND(), n, 0, buf, bufSize - 1 ); 240 buf[bufSize-1] = _T('\0'); 241 wxString str(buf); 242 return str; 243} 244 245bool wxCheckListBox::IsSelected(int n) const 246{ 247 int selState = ListView_GetItemState(GetHwnd(), n, LVIS_SELECTED); 248 return (selState == LVIS_SELECTED); 249} 250 251void wxCheckListBox::SetString(unsigned int n, const wxString& s) 252{ 253 wxCHECK_RET( IsValid( n ), 254 _T("invalid index in wxCheckListBox::SetString") ); 255 wxChar *buf = new wxChar[s.length()+1]; 256 wxStrcpy(buf, s.c_str()); 257 ListView_SetItemText( (HWND)GetHWND(), n, 0, buf ); 258 delete [] buf; 259} 260 261int wxCheckListBox::DoAppend(const wxString& item) 262{ 263 int n = (int)GetCount(); 264 LVITEM newItem; 265 wxZeroMemory(newItem); 266 newItem.iItem = n; 267 int ret = ListView_InsertItem( (HWND)GetHWND(), & newItem ); 268 wxCHECK_MSG( n == ret , -1, _T("Item not added") ); 269 SetString( ret , item ); 270 m_itemsClientData.Insert(NULL, ret); 271 return ret; 272} 273 274void* wxCheckListBox::DoGetItemClientData(unsigned int n) const 275{ 276 return m_itemsClientData.Item(n); 277} 278 279wxClientData* wxCheckListBox::DoGetItemClientObject(unsigned int n) const 280{ 281 return (wxClientData *)DoGetItemClientData(n); 282} 283 284void wxCheckListBox::DoInsertItems(const wxArrayString& items, unsigned int pos) 285{ 286 wxCHECK_RET( IsValidInsert( pos ), 287 wxT("invalid index in wxListBox::InsertItems") ); 288 289 for( unsigned int i = 0; i < items.GetCount(); i++ ) 290 { 291 LVITEM newItem; 292 wxZeroMemory(newItem); 293 newItem.iItem = i+pos; 294 int ret = ListView_InsertItem( (HWND)GetHWND(), & newItem ); 295 wxASSERT_MSG( int(i+pos) == ret , _T("Item not added") ); 296 SetString( ret , items[i] ); 297 m_itemsClientData.Insert(NULL, ret); 298 } 299} 300 301void wxCheckListBox::DoSetFirstItem(int n) 302{ 303 int pos = ListView_GetTopIndex( (HWND)GetHWND() ); 304 if(pos == n) return; 305 POINT ppt; 306 BOOL ret = ListView_GetItemPosition( (HWND)GetHWND(), n, &ppt ); 307 wxCHECK_RET( ret == TRUE, _T("Broken DoSetFirstItem") ); 308 ListView_Scroll( (HWND)GetHWND(), 0, 0 ); 309 ListView_Scroll( (HWND)GetHWND(), 0, ppt.y ); 310} 311 312void wxCheckListBox::DoSetItemClientData(unsigned int n, void* clientData) 313{ 314 m_itemsClientData.Item(n) = clientData; 315} 316 317void wxCheckListBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData) 318{ 319 DoSetItemClientData(n, clientData); 320} 321 322void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData) 323{ 324 ListView_SetItemCount( GetHwnd(), GetCount() + items.GetCount() ); 325 326 for( unsigned int i = 0; i < items.GetCount(); i++ ) 327 { 328 int pos = Append(items[i]); 329 if( pos >= 0 && clientData ) 330 DoSetItemClientData(pos, clientData[i]); 331 } 332} 333 334void wxCheckListBox::DoSetSelection(int n, bool select) 335{ 336 ListView_SetItemState(GetHwnd(), n, select ? LVIS_SELECTED : 0, LVIS_SELECTED); 337} 338 339bool wxCheckListBox::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) 340{ 341 // prepare the event 342 // ----------------- 343 344 wxCommandEvent event(wxEVT_NULL, m_windowId); 345 event.SetEventObject(this); 346 347 wxEventType eventType = wxEVT_NULL; 348 349 NMHDR *nmhdr = (NMHDR *)lParam; 350 351 if ( nmhdr->hwndFrom == GetHwnd() ) 352 { 353 // almost all messages use NM_LISTVIEW 354 NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr; 355 356 const int iItem = nmLV->iItem; 357 358 bool processed = true; 359 switch ( nmhdr->code ) 360 { 361 case LVN_ITEMCHANGED: 362 // we translate this catch all message into more interesting 363 // (and more easy to process) wxWidgets events 364 365 // first of all, we deal with the state change events only and 366 // only for valid items (item == -1 for the virtual list 367 // control) 368 if ( nmLV->uChanged & LVIF_STATE && iItem != -1 ) 369 { 370 // temp vars for readability 371 const UINT stOld = nmLV->uOldState; 372 const UINT stNew = nmLV->uNewState; 373 374 // Check image changed 375 if ((stOld & LVIS_STATEIMAGEMASK) != (stNew & LVIS_STATEIMAGEMASK)) 376 { 377 event.SetEventType(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED); 378 event.SetInt(IsChecked(iItem)); 379 (void) GetEventHandler()->ProcessEvent(event); 380 } 381 382 if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) ) 383 { 384 eventType = wxEVT_COMMAND_LISTBOX_SELECTED; 385 386 event.SetExtraLong( (stNew & LVIS_SELECTED) != 0 ); // is a selection 387 event.SetInt(iItem); 388 } 389 } 390 391 if ( eventType == wxEVT_NULL ) 392 { 393 // not an interesting event for us 394 return false; 395 } 396 397 break; 398 399 default: 400 processed = false; 401 } 402 403 if ( !processed ) 404 return wxControl::MSWOnNotify(idCtrl, lParam, result); 405 } 406 else 407 { 408 // where did this one come from? 409 return false; 410 } 411 412 // process the event 413 // ----------------- 414 415 event.SetEventType(eventType); 416 417 bool processed = GetEventHandler()->ProcessEvent(event); 418 if ( processed ) 419 *result = 0; 420 421 return processed; 422} 423 424 425#endif 426