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