programs/regedit/childwnd.c

   1 /*
   2  * Regedit child window
   3  *
   4  * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_LEAN_AND_MEAN     /* Exclude rarely-used stuff from Windows headers */
  22 #include <windows.h>
  23 #include <commctrl.h>
  24 #include <tchar.h>
  25 #include <stdio.h>
  26
  27 #include "main.h"
  28
  29 #include "wine/debug.h"
  30 #include "wine/unicode.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
  33
  34 ChildWnd* g_pChildWnd;
  35
  36 /*******************************************************************************
  37  * Local module support methods
  38  */
  39
  40 LPCTSTR GetRootKeyName(HKEY hRootKey)
  41 {
  42     if (hRootKey == HKEY_CLASSES_ROOT) return _T("HKEY_CLASSES_ROOT");
  43     if (hRootKey == HKEY_CURRENT_USER) return _T("HKEY_CURRENT_USER");
  44     if (hRootKey == HKEY_LOCAL_MACHINE) return _T("HKEY_LOCAL_MACHINE");
  45     if (hRootKey == HKEY_USERS) return _T("HKEY_USERS");
  46     if (hRootKey == HKEY_CURRENT_CONFIG) return _T("HKEY_CURRENT_CONFIG");
  47     if (hRootKey == HKEY_DYN_DATA) return _T("HKEY_DYN_DATA");
  48     return _T("UNKNOWN HKEY, PLEASE REPORT");
  49 }
  50
  51 static void draw_splitbar(HWND hWnd, int x)
  52 {
  53     RECT rt;
  54     HDC hdc = GetDC(hWnd);
  55
  56     GetClientRect(hWnd, &rt);
  57     rt.left = x - SPLIT_WIDTH/2;
  58     rt.right = x + SPLIT_WIDTH/2+1;
  59     InvertRect(hdc, &rt);
  60     ReleaseDC(hWnd, hdc);
  61 }
  62
  63 static void ResizeWnd(ChildWnd* pChildWnd, int cx, int cy)
  64 {
  65     HDWP hdwp = BeginDeferWindowPos(2);
  66     RECT rt = {0, 0, cx, cy};
  67
  68     cx = pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  69     DeferWindowPos(hdwp, pChildWnd->hTreeWnd, 0, rt.left, rt.top, pChildWnd->nSplitPos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  70     DeferWindowPos(hdwp, pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  71     EndDeferWindowPos(hdwp);
  72 }
  73
  74 static void OnPaint(HWND hWnd)
  75 {
  76     PAINTSTRUCT ps;
  77     RECT rt;
  78     HDC hdc;
  79
  80     GetClientRect(hWnd, &rt);
  81     hdc = BeginPaint(hWnd, &ps);
  82     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
  83     EndPaint(hWnd, &ps);
  84 }
  85
  86 static LPTSTR CombinePaths(LPCTSTR pPaths[], int nPaths) {
  87     int i, len, pos;
  88     LPTSTR combined;
  89     for (i=0, len=0; i<nPaths; i++) {
  90         if (pPaths[i] && *pPaths[i]) {
  91             len += lstrlen(pPaths[i])+1;
  92         }
  93     }
  94     combined = HeapAlloc(GetProcessHeap(), 0, len * sizeof(TCHAR));
  95     *combined = '\0';
  96     for (i=0, pos=0; i<nPaths; i++) {
  97         if (pPaths[i] && *pPaths[i]) {
  98             int llen = _tcslen(pPaths[i]);
  99             if (!*combined)
 100                 _tcscpy(combined, pPaths[i]);
 101             else {
 102                 combined[pos++] = (TCHAR)'\\';
 103                 _tcscpy(combined+pos, pPaths[i]);
 104             }
 105             pos += llen;
 106         }
 107     }
 108     return combined;
 109 }
 110
 111 static LPTSTR GetPathRoot(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 112     LPCTSTR parts[2] = {_T(""), _T("")};
 113     TCHAR text[260];
 114     HKEY hRootKey = NULL;
 115     if (!hItem)
 116         hItem = TreeView_GetSelection(hwndTV);
 117     GetItemPath(hwndTV, hItem, &hRootKey);
 118     if (!bFull && !hRootKey)
 119         return NULL;
 120     if (hRootKey)
 121         parts[1] = GetRootKeyName(hRootKey);
 122     if (bFull) {
 123         DWORD dwSize = sizeof(text)/sizeof(TCHAR);
 124         GetComputerName(text, &dwSize);
 125         parts[0] = text;
 126     }
 127     return CombinePaths(parts, 2);
 128 }
 129
 130 LPTSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 131     LPTSTR parts[2] = {_T(""), _T("")};
 132     HKEY hRootKey = NULL;
 133     LPTSTR ret;
 134     parts[0] = GetPathRoot(hwndTV, hItem, bFull);
 135     parts[1] = GetItemPath(hwndTV, hItem, &hRootKey);
 136     ret = CombinePaths((LPCTSTR *)parts, 2);
 137     HeapFree(GetProcessHeap(), 0, parts[0]);
 138     return ret;
 139 }
 140
 141 LPTSTR GetPathFullPath(HWND hwndTV, LPTSTR path) {
 142     LPTSTR parts[2] = {_T(""), _T("")}, ret;
 143     parts[0] = GetPathRoot(hwndTV, 0, TRUE);
 144     parts[1] = path;
 145     ret = CombinePaths((LPCTSTR *)parts, 2);
 146     HeapFree(GetProcessHeap(), 0, parts[0]);
 147     return ret;
 148 }
 149
 150 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 151 {
 152     if (bRefreshLV) {
 153         LPCTSTR keyPath;
 154         HKEY hRootKey = NULL;
 155         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 156         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 157     }
 158     UpdateStatusBar();
 159 }
 160
 161 /*******************************************************************************
 162  *
 163  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 164  *
 165  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 166  *
 167  */
 168
 169 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 170 {
 171     ChildWnd* pChildWnd = g_pChildWnd;
 172     switch (LOWORD(wParam)) {
 173         /* Parse the menu selections: */
 174     case ID_REGISTRY_EXIT:
 175         DestroyWindow(hWnd);
 176         break;
 177     case ID_VIEW_REFRESH:
 178         WINE_TRACE("Is this ever called or is it just dead code?\n");
 179         /* TODO */
 180         break;
 181     case ID_SWITCH_PANELS:
 182         pChildWnd->nFocusPanel = !pChildWnd->nFocusPanel;
 183         SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 184         break;
 185     default:
 186         return FALSE;
 187     }
 188     return TRUE;
 189 }
 190
 191 /*******************************************************************************
 192  *
 193  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 194  *
 195  *  PURPOSE:  Processes messages for the child windows.
 196  *
 197  *  WM_COMMAND  - process the application menu
 198  *  WM_PAINT    - Paint the main window
 199  *  WM_DESTROY  - post a quit message and return
 200  *
 201  */
 202 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 203 {
 204     static int last_split;
 205     ChildWnd* pChildWnd = g_pChildWnd;
 206
 207     switch (message) {
 208     case WM_CREATE:
 209         g_pChildWnd = pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 210         if (!pChildWnd) return 0;
 211         _tcsncpy(pChildWnd->szPath, _T("My Computer"), MAX_PATH);
 212         pChildWnd->nSplitPos = 250;
 213         pChildWnd->hWnd = hWnd;
 214         pChildWnd->hTreeWnd = CreateTreeView(hWnd, pChildWnd->szPath, TREE_WINDOW);
 215         pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, pChildWnd->szPath*/);
 216         pChildWnd->nFocusPanel = 1;
 217         SetFocus(pChildWnd->hTreeWnd);
 218         break;
 219     case WM_COMMAND:
 220         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 221             goto def;
 222         }
 223         break;
 224     case WM_PAINT:
 225         OnPaint(hWnd);
 226         return 0;
 227     case WM_SETCURSOR:
 228         if (LOWORD(lParam) == HTCLIENT) {
 229             POINT pt;
 230             GetCursorPos(&pt);
 231             ScreenToClient(hWnd, &pt);
 232             if (pt.x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 233                 SetCursor(LoadCursor(0, IDC_SIZEWE));
 234                 return TRUE;
 235             }
 236         }
 237         goto def;
 238     case WM_DESTROY:
 239         HeapFree(GetProcessHeap(), 0, pChildWnd);
 240         pChildWnd = NULL;
 241         PostQuitMessage(0);
 242         break;
 243     case WM_LBUTTONDOWN: {
 244             RECT rt;
 245             int x = LOWORD(lParam);
 246             GetClientRect(hWnd, &rt);
 247             if (x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 248                 last_split = pChildWnd->nSplitPos;
 249                 draw_splitbar(hWnd, last_split);
 250                 SetCapture(hWnd);
 251             }
 252             break;
 253         }
 254
 255     case WM_LBUTTONUP:
 256         if (GetCapture() == hWnd) {
 257             RECT rt;
 258             int x = LOWORD(lParam);
 259             draw_splitbar(hWnd, last_split);
 260             last_split = -1;
 261             GetClientRect(hWnd, &rt);
 262             pChildWnd->nSplitPos = x;
 263             ResizeWnd(pChildWnd, rt.right, rt.bottom);
 264             ReleaseCapture();
 265         }
 266         break;
 267
 268     case WM_CAPTURECHANGED:
 269         if (GetCapture()==hWnd && last_split>=0)
 270             draw_splitbar(hWnd, last_split);
 271         break;
 272
 273     case WM_KEYDOWN:
 274         if (wParam == VK_ESCAPE)
 275             if (GetCapture() == hWnd) {
 276                 RECT rt;
 277                 draw_splitbar(hWnd, last_split);
 278                 GetClientRect(hWnd, &rt);
 279                 ResizeWnd(pChildWnd, rt.right, rt.bottom);
 280                 last_split = -1;
 281                 ReleaseCapture();
 282                 SetCursor(LoadCursor(0, IDC_ARROW));
 283             }
 284         break;
 285
 286     case WM_MOUSEMOVE:
 287         if (GetCapture() == hWnd) {
 288             RECT rt;
 289             int x = LOWORD(lParam);
 290             HDC hdc = GetDC(hWnd);
 291             GetClientRect(hWnd, &rt);
 292             rt.left = last_split-SPLIT_WIDTH/2;
 293             rt.right = last_split+SPLIT_WIDTH/2+1;
 294             InvertRect(hdc, &rt);
 295             last_split = x;
 296             rt.left = x-SPLIT_WIDTH/2;
 297             rt.right = x+SPLIT_WIDTH/2+1;
 298             InvertRect(hdc, &rt);
 299             ReleaseDC(hWnd, hdc);
 300         }
 301         break;
 302
 303     case WM_SETFOCUS:
 304         if (pChildWnd != NULL) {
 305             SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 306         }
 307         break;
 308
 309     case WM_TIMER:
 310         break;
 311
 312     case WM_NOTIFY:
 313         if ((int)wParam == TREE_WINDOW) {
 314             switch (((LPNMHDR)lParam)->code) {
 315             case TVN_ITEMEXPANDING:
 316                 return !OnTreeExpanding(pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 317             case TVN_SELCHANGED:
 318                 OnTreeSelectionChanged(pChildWnd->hTreeWnd, pChildWnd->hListWnd,
 319                     ((NMTREEVIEW *)lParam)->itemNew.hItem, TRUE);
 320                 break;
 321             case NM_SETFOCUS:
 322                 pChildWnd->nFocusPanel = 0;
 323                 break;
 324             case NM_RCLICK: {
 325                 POINT pt;
 326                 GetCursorPos(&pt);
 327                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW),
 328                                TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 329                 break;
 330             }
 331             case TVN_ENDLABELEDIT: {
 332                 HKEY hRootKey;
 333                 LPNMTVDISPINFO dispInfo = (LPNMTVDISPINFO)lParam;
 334                 LPCTSTR path = GetItemPath(pChildWnd->hTreeWnd, 0, &hRootKey);
 335                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 336                 if (res) {
 337                     TVITEMEX item;
 338                     LPTSTR fullPath = GetPathFullPath(pChildWnd->hTreeWnd,
 339                      dispInfo->item.pszText);
 340                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 341                     item.hItem = TreeView_GetSelection(pChildWnd->hTreeWnd);
 342                     item.pszText = dispInfo->item.pszText;
 343                     SendMessage( pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item );
 344                     SendMessage(hStatusBar, SB_SETTEXT, 0, (LPARAM)fullPath);
 345                     HeapFree(GetProcessHeap(), 0, fullPath);
 346                 }
 347                 return res;
 348             }
 349             default:
 350                 return 0; /* goto def; */
 351             }
 352         } else
 353             if ((int)wParam == LIST_WINDOW) {
 354                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 355                     pChildWnd->nFocusPanel = 1;
 356                 } else if (!SendMessage(pChildWnd->hListWnd, WM_NOTIFY_REFLECT, wParam, lParam)) {
 357                     goto def;
 358                 }
 359             }
 360         break;
 361
 362     case WM_SIZE:
 363         if (wParam != SIZE_MINIMIZED && pChildWnd != NULL) {
 364             ResizeWnd(pChildWnd, LOWORD(lParam), HIWORD(lParam));
 365         }
 366         /* fall through */
 367 default: def:
 368         return DefWindowProc(hWnd, message, wParam, lParam);
 369     }
 370     return 0;
 371 }