dlls/comctl32/flatsb.c

   1 /*
   2  * Flat Scrollbar control
   3  *
   4  * Copyright 1998, 1999 Eric Kohl
   5  * Copyright 1998 Alex Priem
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * NOTES
  22  *   This is just a dummy control. An author is needed! Any volunteers?
  23  *   I will only improve this control once in a while.
  24  *     Eric <ekohl@abo.rhein-zeitung.de>
  25  *
  26  * TODO:
  27  *   - All messages.
  28  *   - All notifications.
  29  *
  30  */
  31
  32 #include <stdarg.h>
  33 #include <string.h>
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "winerror.h"
  37 #include "winuser.h"
  38 #include "commctrl.h"
  39 #include "comctl32.h"
  40 #include "wine/debug.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(commctrl);
  43
  44 typedef struct
  45 {
  46     DWORD dwDummy;  /* just to keep the compiler happy ;-) */
  47 } FLATSB_INFO, *LPFLATSB_INFO;
  48
  49
  50 /***********************************************************************
  51  *              InitializeFlatSB (COMCTL32.@)
  52  *
  53  * Initializes flat scroll bars for the specified window.
  54  *
  55  * RETURNS
  56  *     Success: Non-zero
  57  *     Failure: Zero
  58  *
  59  * NOTES
  60  *     Subclasses specified window so that flat scroll bars may be drawn
  61  *     and used.
  62  */
  63 BOOL WINAPI InitializeFlatSB(HWND hwnd)
  64 {
  65     TRACE("[%p]\n", hwnd);
  66     return TRUE;
  67 }
  68
  69 /***********************************************************************
  70  *              UninitializeFlatSB (COMCTL32.@)
  71  *
  72  * Uninitializes flat scroll bars for the specified window.
  73  *
  74  * RETURNS
  75  *      E_FAIL          if one of the scroll bars is currently in use
  76  *      S_FALSE         if InitializeFlatSB() was never called on this hwnd
  77  *      S_OK            otherwise
  78  *
  79  * NOTES
  80  *     Removes any subclassing on the specified window so that regular
  81  *     scroll bars are drawn and used.
  82  */
  83 HRESULT WINAPI UninitializeFlatSB(HWND hwnd)
  84 {
  85     TRACE("[%p]\n", hwnd);
  86     return S_FALSE;
  87 }
  88
  89 /***********************************************************************
  90  *              FlatSB_GetScrollProp (COMCTL32.@)
  91  *
  92  * Retrieves flat-scroll-bar-specific properties for the specified window.
  93  *
  94  * RETURNS
  95  *     nonzero if successful, or zero otherwise. If index is WSB_PROP_HSTYLE,
  96  *     the return is nonzero if InitializeFlatSB has been called for this window, or
  97  *     zero otherwise.
  98  */
  99 BOOL WINAPI
 100 FlatSB_GetScrollProp(HWND hwnd, INT propIndex, LPINT prop)
 101 {
 102     TRACE("[%p] propIndex=%d\n", hwnd, propIndex);
 103     return FALSE;
 104 }
 105
 106 /***********************************************************************
 107  *              FlatSB_SetScrollProp (COMCTL32.@)
 108  *
 109  * Sets flat-scroll-bar-specific properties for the specified window.
 110  *
 111  * RETURNS
 112  *     Success: Non-zero
 113  *     Failure: Zero
 114  */
 115 BOOL WINAPI
 116 FlatSB_SetScrollProp(HWND hwnd, UINT index, INT newValue, BOOL flag)
 117 {
 118     TRACE("[%p] index=%u newValue=%d flag=%d\n", hwnd, index, newValue, flag);
 119     return FALSE;
 120 }
 121
 122 /***********************************************************************
 123  *      From the Microsoft docs:
 124  *      "If flat scroll bars haven't been initialized for the
 125  *      window, the flat scroll bar APIs will defer to the corresponding
 126  *      standard APIs.  This allows the developer to turn flat scroll
 127  *      bars on and off without having to write conditional code."
 128  *
 129  *      So, if we just call the standard functions until we implement
 130  *      the flat scroll bar functions, flat scroll bars will show up and
 131  *      behave properly, as though they had simply not been setup to
 132  *      have flat properties.
 133  *
 134  *      Susan <sfarley@codeweavers.com>
 135  *
 136  */
 137
 138 /***********************************************************************
 139  *              FlatSB_EnableScrollBar (COMCTL32.@)
 140  *
 141  * See EnableScrollBar.
 142  */
 143 BOOL WINAPI
 144 FlatSB_EnableScrollBar(HWND hwnd, int nBar, UINT flags)
 145 {
 146     return EnableScrollBar(hwnd, nBar, flags);
 147 }
 148
 149 /***********************************************************************
 150  *              FlatSB_ShowScrollBar (COMCTL32.@)
 151  *
 152  * See ShowScrollBar.
 153  */
 154 BOOL WINAPI
 155 FlatSB_ShowScrollBar(HWND hwnd, int nBar, BOOL fShow)
 156 {
 157     return ShowScrollBar(hwnd, nBar, fShow);
 158 }
 159
 160 /***********************************************************************
 161  *              FlatSB_GetScrollRange (COMCTL32.@)
 162  *
 163  * See GetScrollRange.
 164  */
 165 BOOL WINAPI
 166 FlatSB_GetScrollRange(HWND hwnd, int nBar, LPINT min, LPINT max)
 167 {
 168     return GetScrollRange(hwnd, nBar, min, max);
 169 }
 170
 171 /***********************************************************************
 172  *              FlatSB_GetScrollInfo (COMCTL32.@)
 173  *
 174  * See GetScrollInfo.
 175  */
 176 BOOL WINAPI
 177 FlatSB_GetScrollInfo(HWND hwnd, int nBar, LPSCROLLINFO info)
 178 {
 179     return GetScrollInfo(hwnd, nBar, info);
 180 }
 181
 182 /***********************************************************************
 183  *              FlatSB_GetScrollPos (COMCTL32.@)
 184  *
 185  * See GetScrollPos.
 186  */
 187 INT WINAPI
 188 FlatSB_GetScrollPos(HWND hwnd, int nBar)
 189 {
 190     return GetScrollPos(hwnd, nBar);
 191 }
 192
 193 /***********************************************************************
 194  *              FlatSB_SetScrollPos (COMCTL32.@)
 195  *
 196  * See SetScrollPos.
 197  */
 198 INT WINAPI
 199 FlatSB_SetScrollPos(HWND hwnd, int nBar, INT pos, BOOL bRedraw)
 200 {
 201     return SetScrollPos(hwnd, nBar, pos, bRedraw);
 202 }
 203
 204 /***********************************************************************
 205  *              FlatSB_SetScrollInfo (COMCTL32.@)
 206  *
 207  * See SetScrollInfo.
 208  */
 209 INT WINAPI
 210 FlatSB_SetScrollInfo(HWND hwnd, int nBar, LPSCROLLINFO info, BOOL bRedraw)
 211 {
 212     return SetScrollInfo(hwnd, nBar, info, bRedraw);
 213 }
 214
 215 /***********************************************************************
 216  *              FlatSB_SetScrollRange (COMCTL32.@)
 217  *
 218  * See SetScrollRange.
 219  */
 220 INT WINAPI
 221 FlatSB_SetScrollRange(HWND hwnd, int nBar, INT min, INT max, BOOL bRedraw)
 222 {
 223     return SetScrollRange(hwnd, nBar, min, max, bRedraw);
 224 }
 225
 226
 227 static LRESULT
 228 FlatSB_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
 229 {
 230     TRACE("[%p] wParam %Ix, lParam %Ix\n", hwnd, wParam, lParam);
 231     return 0;
 232 }
 233
 234
 235 static LRESULT
 236 FlatSB_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
 237 {
 238     TRACE("[%p] wParam %Ix, lParam %Ix\n", hwnd, wParam, lParam);
 239     return 0;
 240 }
 241
 242
 243 static LRESULT WINAPI
 244 FlatSB_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 245 {
 246     if (!GetWindowLongPtrW(hwnd, 0) && (uMsg != WM_CREATE))
 247         return DefWindowProcW( hwnd, uMsg, wParam, lParam );
 248
 249     switch (uMsg)
 250     {
 251         case WM_CREATE:
 252             return FlatSB_Create (hwnd, wParam, lParam);
 253
 254         case WM_DESTROY:
 255             return FlatSB_Destroy (hwnd, wParam, lParam);
 256
 257         default:
 258             if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
 259                 ERR("unknown msg %04x, wp %#Ix, lp %#Ix\n", uMsg, wParam, lParam);
 260             return DefWindowProcW (hwnd, uMsg, wParam, lParam);
 261     }
 262 }
 263
 264
 265 VOID
 266 FLATSB_Register (void)
 267 {
 268     WNDCLASSW wndClass;
 269
 270     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
 271     wndClass.style         = CS_GLOBALCLASS;
 272     wndClass.lpfnWndProc   = FlatSB_WindowProc;
 273     wndClass.cbClsExtra    = 0;
 274     wndClass.cbWndExtra    = sizeof(FLATSB_INFO *);
 275     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_ARROW);
 276     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
 277     wndClass.lpszClassName = FLATSB_CLASSW;
 278
 279     RegisterClassW (&wndClass);
 280 }
 281
 282
 283 VOID
 284 FLATSB_Unregister (void)
 285 {
 286     UnregisterClassW (FLATSB_CLASSW, NULL);
 287 }