dlls/comctl32/comboex.c

   1 /*
   2  * ComboBoxEx control
   3  *
   4  * Copyright 1998, 1999 Eric Kohl
   5  *
   6  * NOTES
   7  *   This is just a dummy control. An author is needed! Any volunteers?
   8  *   I will only improve this control once in a while.
   9  *     Eric <ekohl@abo.rhein-zeitung.de>
  10  *
  11  * TODO:
  12  *   - All messages.
  13  *   - All notifications.
  14  *
  15  * FIXME:
  16  *   - should include "combo.h"
  17  */
  18
  19 #include "winbase.h"
  20 #include "commctrl.h"
  21 #include "debugtools.h"
  22
  23 DEFAULT_DEBUG_CHANNEL(comboex);
  24
  25 typedef struct
  26 {
  27     HIMAGELIST himl;
  28     HWND     hwndCombo;
  29     DWORD      dwExtStyle;
  30 } COMBOEX_INFO;
  31
  32 #define ID_CB_EDIT    1001
  33
  34 #define COMBOEX_GetInfoPtr(wndPtr) ((COMBOEX_INFO *)GetWindowLongA (hwnd, 0))
  35
  36
  37 /* << COMBOEX_DeleteItem >> */
  38
  39
  40 inline static LRESULT
  41 COMBOEX_GetComboControl (HWND hwnd, WPARAM wParam, LPARAM lParam)
  42 {
  43     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
  44
  45     TRACE("\n");
  46
  47     return (LRESULT)infoPtr->hwndCombo;
  48 }
  49
  50
  51 inline static LRESULT
  52 COMBOEX_GetEditControl (HWND hwnd, WPARAM wParam, LPARAM lParam)
  53 {
  54     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
  55
  56     if ((GetWindowLongA (hwnd, GWL_STYLE) & CBS_DROPDOWNLIST) != CBS_DROPDOWN)
  57         return 0;
  58
  59     TRACE("-- 0x%x\n", GetDlgItem (infoPtr->hwndCombo, ID_CB_EDIT));
  60
  61     return (LRESULT)GetDlgItem (infoPtr->hwndCombo, ID_CB_EDIT);
  62 }
  63
  64
  65 inline static LRESULT
  66 COMBOEX_GetExtendedStyle (HWND hwnd, WPARAM wParam, LPARAM lParam)
  67 {
  68     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
  69
  70     return (LRESULT)infoPtr->dwExtStyle;
  71 }
  72
  73
  74 inline static LRESULT
  75 COMBOEX_GetImageList (HWND hwnd, WPARAM wParam, LPARAM lParam)
  76 {
  77     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
  78
  79     TRACE("(0x%08x 0x%08lx)\n", wParam, lParam);
  80
  81     return (LRESULT)infoPtr->himl;
  82 }
  83
  84
  85
  86
  87 static LRESULT
  88 COMBOEX_InsertItemA (HWND hwnd, WPARAM wParam, LPARAM lParam)
  89 {
  90     /* COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd); */
  91
  92     FIXME("(0x%08x 0x%08lx)\n", wParam, lParam);
  93
  94     return -1;
  95 }
  96
  97
  98
  99 static LRESULT
 100 COMBOEX_SetExtendedStyle (HWND hwnd, WPARAM wParam, LPARAM lParam)
 101 {
 102     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
 103     DWORD dwTemp;
 104
 105     TRACE("(0x%08x 0x%08lx)\n", wParam, lParam);
 106
 107     dwTemp = infoPtr->dwExtStyle;
 108
 109     if ((DWORD)wParam) {
 110         infoPtr->dwExtStyle = (infoPtr->dwExtStyle & ~(DWORD)wParam) | (DWORD)lParam;
 111     }
 112     else
 113         infoPtr->dwExtStyle = (DWORD)lParam;
 114
 115     /* FIXME: repaint?? */
 116
 117     return (LRESULT)dwTemp;
 118 }
 119
 120
 121 inline static LRESULT
 122 COMBOEX_SetImageList (HWND hwnd, WPARAM wParam, LPARAM lParam)
 123 {
 124     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
 125     HIMAGELIST himlTemp;
 126
 127     TRACE("(0x%08x 0x%08lx)\n", wParam, lParam);
 128
 129     himlTemp = infoPtr->himl;
 130     infoPtr->himl = (HIMAGELIST)lParam;
 131
 132     return (LRESULT)himlTemp;
 133 }
 134
 135
 136 static LRESULT
 137 COMBOEX_SetItemA (HWND hwnd, WPARAM wParam, LPARAM lParam)
 138 {
 139     /* COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd); */
 140
 141     FIXME("(%p): stub\n", (LPVOID)lParam);
 142
 143     return TRUE;
 144 }
 145
 146
 147 /* << COMBOEX_SetItem32W >> */
 148
 149
 150 inline static LRESULT
 151 COMBOEX_Forward (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 152 {
 153     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
 154
 155     FIXME("(0x%x 0x%x 0x%lx): stub\n", uMsg, wParam, lParam);
 156
 157     if (infoPtr->hwndCombo)
 158         return SendMessageA (infoPtr->hwndCombo, uMsg, wParam, lParam);
 159
 160     return 0;
 161 }
 162
 163
 164 static LRESULT
 165 COMBOEX_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
 166 {
 167     COMBOEX_INFO *infoPtr;
 168     DWORD dwComboStyle;
 169
 170     /* allocate memory for info structure */
 171     infoPtr = (COMBOEX_INFO *)COMCTL32_Alloc (sizeof(COMBOEX_INFO));
 172     if (infoPtr == NULL) {
 173         ERR("could not allocate info memory!\n");
 174         return 0;
 175     }
 176
 177     SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
 178
 179
 180     /* initialize info structure */
 181
 182
 183     /* create combo box */
 184     dwComboStyle = GetWindowLongA (hwnd, GWL_STYLE) &
 185                         (CBS_SIMPLE|CBS_DROPDOWN|CBS_DROPDOWNLIST|WS_CHILD);
 186
 187     infoPtr->hwndCombo = CreateWindowA ("ComboBox", "",
 188                          WS_CHILD | WS_VISIBLE | CBS_OWNERDRAWFIXED | dwComboStyle,
 189                         0, 0, 0, 0, hwnd, (HMENU)1,
 190                         GetWindowLongA (hwnd, GWL_HINSTANCE), NULL);
 191
 192     return 0;
 193 }
 194
 195
 196 static LRESULT
 197 COMBOEX_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
 198 {
 199     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
 200
 201
 202     if (infoPtr->hwndCombo)
 203         DestroyWindow (infoPtr->hwndCombo);
 204
 205
 206
 207
 208     /* free comboex info data */
 209     COMCTL32_Free (infoPtr);
 210     SetWindowLongA (hwnd, 0, 0);
 211     return 0;
 212 }
 213
 214
 215 static LRESULT
 216 COMBOEX_Size (HWND hwnd, WPARAM wParam, LPARAM lParam)
 217 {
 218     COMBOEX_INFO *infoPtr = COMBOEX_GetInfoPtr (hwnd);
 219     RECT rect;
 220
 221     GetClientRect (hwnd, &rect);
 222
 223     MoveWindow (infoPtr->hwndCombo, 0, 0, rect.right -rect.left,
 224                   rect.bottom - rect.top, TRUE);
 225
 226     return 0;
 227 }
 228
 229
 230 static LRESULT WINAPI
 231 COMBOEX_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 232 {
 233     TRACE("hwnd=%x msg=%x wparam=%x lParam=%lx\n", hwnd, uMsg, wParam, lParam);
 234     if (!COMBOEX_GetInfoPtr (hwnd) && (uMsg != WM_CREATE))
 235         return DefWindowProcA (hwnd, uMsg, wParam, lParam);
 236
 237     switch (uMsg)
 238     {
 239 /*      case CBEM_DELETEITEM: */
 240
 241         case CBEM_GETCOMBOCONTROL:
 242             return COMBOEX_GetComboControl (hwnd, wParam, lParam);
 243
 244         case CBEM_GETEDITCONTROL:
 245             return COMBOEX_GetEditControl (hwnd, wParam, lParam);
 246
 247         case CBEM_GETEXTENDEDSTYLE:
 248             return COMBOEX_GetExtendedStyle (hwnd, wParam, lParam);
 249
 250         case CBEM_GETIMAGELIST:
 251             return COMBOEX_GetImageList (hwnd, wParam, lParam);
 252
 253 /*      case CBEM_GETITEM32A:
 254         case CBEM_GETITEM32W:
 255         case CBEM_GETUNICODEFORMAT:
 256         case CBEM_HASEDITCHANGED:
 257 */
 258
 259         case CBEM_INSERTITEMA:
 260             return COMBOEX_InsertItemA (hwnd, wParam, lParam);
 261
 262 /*      case CBEM_INSERTITEM32W: */
 263
 264         case CBEM_SETEXTENDEDSTYLE:
 265             return COMBOEX_SetExtendedStyle (hwnd, wParam, lParam);
 266
 267         case CBEM_SETIMAGELIST:
 268             return COMBOEX_SetImageList (hwnd, wParam, lParam);
 269
 270         case CBEM_SETITEMA:
 271             return COMBOEX_SetItemA (hwnd, wParam, lParam);
 272
 273 /*      case CBEM_SETITEM32W:
 274         case CBEM_SETUNICODEFORMAT:
 275 */
 276
 277         case CB_DELETESTRING:
 278         case CB_FINDSTRINGEXACT:
 279         case CB_GETCOUNT:
 280         case CB_GETCURSEL:
 281         case CB_GETDROPPEDCONTROLRECT:
 282         case CB_GETDROPPEDSTATE:
 283         case CB_GETITEMDATA:
 284         case CB_GETITEMHEIGHT:
 285         case CB_GETLBTEXT:
 286         case CB_GETLBTEXTLEN:
 287         case CB_GETEXTENDEDUI:
 288         case CB_LIMITTEXT:
 289         case CB_RESETCONTENT:
 290         case CB_SELECTSTRING:
 291         case CB_SETCURSEL:
 292         case CB_SETDROPPEDWIDTH:
 293         case CB_SETEXTENDEDUI:
 294         case CB_SETITEMDATA:
 295         case CB_SETITEMHEIGHT:
 296         case CB_SHOWDROPDOWN:
 297             return COMBOEX_Forward (hwnd, uMsg, wParam, lParam);
 298
 299
 300         case WM_CREATE:
 301             return COMBOEX_Create (hwnd, wParam, lParam);
 302
 303         case WM_DESTROY:
 304             return COMBOEX_Destroy (hwnd, wParam, lParam);
 305
 306         case WM_SIZE:
 307             return COMBOEX_Size (hwnd, wParam, lParam);
 308
 309         default:
 310             if (uMsg >= WM_USER)
 311                 ERR("unknown msg %04x wp=%08x lp=%08lx\n",
 312                      uMsg, wParam, lParam);
 313             return DefWindowProcA (hwnd, uMsg, wParam, lParam);
 314     }
 315     return 0;
 316 }
 317
 318
 319 VOID
 320 COMBOEX_Register (void)
 321 {
 322     WNDCLASSA wndClass;
 323
 324     ZeroMemory (&wndClass, sizeof(WNDCLASSA));
 325     wndClass.style         = CS_GLOBALCLASS;
 326     wndClass.lpfnWndProc   = (WNDPROC)COMBOEX_WindowProc;
 327     wndClass.cbClsExtra    = 0;
 328     wndClass.cbWndExtra    = sizeof(COMBOEX_INFO *);
 329     wndClass.hCursor       = LoadCursorA (0, IDC_ARROWA);
 330     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
 331     wndClass.lpszClassName = WC_COMBOBOXEXA;
 332
 333     RegisterClassA (&wndClass);
 334 }
 335
 336
 337 VOID
 338 COMBOEX_Unregister (void)
 339 {
 340     UnregisterClassA (WC_COMBOBOXEXA, (HINSTANCE)NULL);
 341 }
 342