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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 LPTSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 112     LPCTSTR parts[3] = {_T(""), _T(""), _T("")};
 113     TCHAR text[260];
 114     HKEY hRootKey = NULL;
 115     if (!hItem)
 116         hItem = TreeView_GetSelection(hwndTV);
 117     parts[2] = GetItemPath(hwndTV, hItem, &hRootKey);
 118     if (!parts[2])
 119         parts[2] = _T("");
 120     if (!bFull && !hRootKey && !*parts[2])
 121         return NULL;
 122     if (hRootKey)
 123         parts[1] = GetRootKeyName(hRootKey);
 124     if (bFull) {
 125         DWORD dwSize = sizeof(text)/sizeof(TCHAR);
 126         GetComputerName(text, &dwSize);
 127         parts[0] = text;
 128     }
 129     return CombinePaths(parts, 3);
 130 }
 131
 132 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 133 {
 134     if (bRefreshLV) {
 135         LPCTSTR keyPath;
 136         HKEY hRootKey = NULL;
 137         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 138         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 139     }
 140     UpdateStatusBar();
 141 }
 142
 143 /*******************************************************************************
 144  *
 145  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 146  *
 147  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 148  *
 149  */
 150
 151 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 152 {
 153     ChildWnd* pChildWnd = g_pChildWnd;
 154     switch (LOWORD(wParam)) {
 155         /* Parse the menu selections: */
 156     case ID_REGISTRY_EXIT:
 157         DestroyWindow(hWnd);
 158         break;
 159     case ID_VIEW_REFRESH:
 160         WINE_TRACE("Is this ever called or is it just dead code?\n");
 161         /* TODO */
 162         break;
 163     case ID_SWITCH_PANELS:
 164         pChildWnd->nFocusPanel = !pChildWnd->nFocusPanel;
 165         SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 166         break;
 167     default:
 168         return FALSE;
 169     }
 170     return TRUE;
 171 }
 172
 173 /*******************************************************************************
 174  *
 175  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 176  *
 177  *  PURPOSE:  Processes messages for the child windows.
 178  *
 179  *  WM_COMMAND  - process the application menu
 180  *  WM_PAINT    - Paint the main window
 181  *  WM_DESTROY  - post a quit message and return
 182  *
 183  */
 184 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 185 {
 186     static int last_split;
 187     ChildWnd* pChildWnd = g_pChildWnd;
 188
 189     switch (message) {
 190     case WM_CREATE:
 191         g_pChildWnd = pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 192         if (!pChildWnd) return 0;
 193         _tcsncpy(pChildWnd->szPath, _T("My Computer"), MAX_PATH);
 194         pChildWnd->nSplitPos = 250;
 195         pChildWnd->hWnd = hWnd;
 196         pChildWnd->hTreeWnd = CreateTreeView(hWnd, pChildWnd->szPath, TREE_WINDOW);
 197         pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, pChildWnd->szPath*/);
 198         pChildWnd->nFocusPanel = 1;
 199         SetFocus(pChildWnd->hTreeWnd);
 200         break;
 201     case WM_COMMAND:
 202         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 203             goto def;
 204         }
 205         break;
 206     case WM_PAINT:
 207         OnPaint(hWnd);
 208         return 0;
 209     case WM_SETCURSOR:
 210         if (LOWORD(lParam) == HTCLIENT) {
 211             POINT pt;
 212             GetCursorPos(&pt);
 213             ScreenToClient(hWnd, &pt);
 214             if (pt.x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 215                 SetCursor(LoadCursor(0, IDC_SIZEWE));
 216                 return TRUE;
 217             }
 218         }
 219         goto def;
 220     case WM_DESTROY:
 221         HeapFree(GetProcessHeap(), 0, pChildWnd);
 222         pChildWnd = NULL;
 223         PostQuitMessage(0);
 224         break;
 225     case WM_LBUTTONDOWN: {
 226             RECT rt;
 227             int x = LOWORD(lParam);
 228             GetClientRect(hWnd, &rt);
 229             if (x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 230                 last_split = pChildWnd->nSplitPos;
 231                 draw_splitbar(hWnd, last_split);
 232                 SetCapture(hWnd);
 233             }
 234             break;
 235         }
 236
 237     case WM_LBUTTONUP:
 238         if (GetCapture() == hWnd) {
 239             RECT rt;
 240             int x = LOWORD(lParam);
 241             draw_splitbar(hWnd, last_split);
 242             last_split = -1;
 243             GetClientRect(hWnd, &rt);
 244             pChildWnd->nSplitPos = x;
 245             ResizeWnd(pChildWnd, rt.right, rt.bottom);
 246             ReleaseCapture();
 247         }
 248         break;
 249
 250     case WM_CAPTURECHANGED:
 251         if (GetCapture()==hWnd && last_split>=0)
 252             draw_splitbar(hWnd, last_split);
 253         break;
 254
 255     case WM_KEYDOWN:
 256         if (wParam == VK_ESCAPE)
 257             if (GetCapture() == hWnd) {
 258                 RECT rt;
 259                 draw_splitbar(hWnd, last_split);
 260                 GetClientRect(hWnd, &rt);
 261                 ResizeWnd(pChildWnd, rt.right, rt.bottom);
 262                 last_split = -1;
 263                 ReleaseCapture();
 264                 SetCursor(LoadCursor(0, IDC_ARROW));
 265             }
 266         break;
 267
 268     case WM_MOUSEMOVE:
 269         if (GetCapture() == hWnd) {
 270             RECT rt;
 271             int x = LOWORD(lParam);
 272             HDC hdc = GetDC(hWnd);
 273             GetClientRect(hWnd, &rt);
 274             rt.left = last_split-SPLIT_WIDTH/2;
 275             rt.right = last_split+SPLIT_WIDTH/2+1;
 276             InvertRect(hdc, &rt);
 277             last_split = x;
 278             rt.left = x-SPLIT_WIDTH/2;
 279             rt.right = x+SPLIT_WIDTH/2+1;
 280             InvertRect(hdc, &rt);
 281             ReleaseDC(hWnd, hdc);
 282         }
 283         break;
 284
 285     case WM_SETFOCUS:
 286         if (pChildWnd != NULL) {
 287             SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 288         }
 289         break;
 290
 291     case WM_TIMER:
 292         break;
 293
 294     case WM_NOTIFY:
 295         if ((int)wParam == TREE_WINDOW) {
 296             switch (((LPNMHDR)lParam)->code) {
 297             case TVN_ITEMEXPANDING:
 298                 return !OnTreeExpanding(pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 299             case TVN_SELCHANGED:
 300                 OnTreeSelectionChanged(pChildWnd->hTreeWnd, pChildWnd->hListWnd,
 301                     ((NMTREEVIEW *)lParam)->itemNew.hItem, TRUE);
 302                 break;
 303             case NM_SETFOCUS:
 304                 pChildWnd->nFocusPanel = 0;
 305                 break;
 306             case NM_RCLICK: {
 307                 POINT pt;
 308                 GetCursorPos(&pt);
 309                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW),
 310                                TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 311                 break;
 312             }
 313             case TVN_ENDLABELEDIT: {
 314                 HKEY hRootKey;
 315                 LPNMTVDISPINFO dispInfo = (LPNMTVDISPINFO)lParam;
 316                 LPCTSTR path = GetItemPath(pChildWnd->hTreeWnd, 0, &hRootKey);
 317                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 318                 if (res) {
 319                     TVITEMEX item;
 320                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 321                     item.hItem = TreeView_GetSelection(pChildWnd->hTreeWnd);
 322                     item.pszText = dispInfo->item.pszText;
 323                     TreeView_SetItem(pChildWnd->hTreeWnd, &item);
 324                 }
 325                 return res;
 326             }
 327             default:
 328                 return 0; /* goto def; */
 329             }
 330         } else
 331             if ((int)wParam == LIST_WINDOW) {
 332                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 333                     pChildWnd->nFocusPanel = 1;
 334                 } else if (!SendMessage(pChildWnd->hListWnd, WM_NOTIFY_REFLECT, wParam, lParam)) {
 335                     goto def;
 336                 }
 337             }
 338         break;
 339
 340     case WM_SIZE:
 341         if (wParam != SIZE_MINIMIZED && pChildWnd != NULL) {
 342             ResizeWnd(pChildWnd, LOWORD(lParam), HIWORD(lParam));
 343         }
 344         /* fall through */
 345 default: def:
 346         return DefWindowProc(hWnd, message, wParam, lParam);
 347     }
 348     return 0;
 349 }