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 static LPCTSTR get_root_key_name(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("UKNOWN 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 void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
  87 {
  88     LPCTSTR keyPath, rootName;
  89     LPTSTR fullPath;
  90     HKEY hRootKey;
  91
  92     keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
  93     if (keyPath) {
  94         if (bRefreshLV)
  95             RefreshListView(hwndLV, hRootKey, keyPath, NULL);
  96         rootName = get_root_key_name(hRootKey);
  97         fullPath = HeapAlloc(GetProcessHeap(), 0, (lstrlen(rootName) + 1 + lstrlen(keyPath) + 1) * sizeof(TCHAR));
  98         if (fullPath) {
  99             _stprintf(fullPath, "%s\\%s", rootName, keyPath);
 100             SendMessage(hStatusBar, SB_SETTEXT, 0, (LPARAM)fullPath);
 101             HeapFree(GetProcessHeap(), 0, fullPath);
 102         }
 103     }
 104     else {
 105         /* else the computer icon is being selected, so display computer name */
 106         TCHAR text[260];
 107         DWORD size;
 108
 109         size = sizeof(text)/sizeof(TCHAR);
 110         GetComputerName(text, &size);
 111         SendMessage(hStatusBar, SB_SETTEXT, 0, (LPARAM)text);
 112     }
 113 }
 114
 115 /*******************************************************************************
 116  *
 117  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 118  *
 119  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 120  *
 121  */
 122
 123 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 124 {
 125     ChildWnd* pChildWnd = g_pChildWnd;
 126     switch (LOWORD(wParam)) {
 127         /* Parse the menu selections: */
 128     case ID_REGISTRY_EXIT:
 129         DestroyWindow(hWnd);
 130         break;
 131     case ID_VIEW_REFRESH:
 132         WINE_TRACE("Is this ever called or is it just dead code?\n");
 133         /* TODO */
 134         break;
 135     case ID_SWITCH_PANELS:
 136         pChildWnd->nFocusPanel = !pChildWnd->nFocusPanel;
 137         SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 138         break;
 139     default:
 140         return FALSE;
 141     }
 142     return TRUE;
 143 }
 144
 145 /*******************************************************************************
 146  *
 147  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 148  *
 149  *  PURPOSE:  Processes messages for the child windows.
 150  *
 151  *  WM_COMMAND  - process the application menu
 152  *  WM_PAINT    - Paint the main window
 153  *  WM_DESTROY  - post a quit message and return
 154  *
 155  */
 156 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 157 {
 158     static int last_split;
 159     ChildWnd* pChildWnd = g_pChildWnd;
 160
 161     switch (message) {
 162     case WM_CREATE:
 163         g_pChildWnd = pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 164         if (!pChildWnd) return 0;
 165         _tcsncpy(pChildWnd->szPath, _T("My Computer"), MAX_PATH);
 166         pChildWnd->nSplitPos = 250;
 167         pChildWnd->hWnd = hWnd;
 168         pChildWnd->hTreeWnd = CreateTreeView(hWnd, pChildWnd->szPath, TREE_WINDOW);
 169         pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, pChildWnd->szPath*/);
 170         SetFocus(pChildWnd->hTreeWnd);
 171         break;
 172     case WM_COMMAND:
 173         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 174             goto def;
 175         }
 176         break;
 177     case WM_PAINT:
 178         OnPaint(hWnd);
 179         return 0;
 180     case WM_SETCURSOR:
 181         if (LOWORD(lParam) == HTCLIENT) {
 182             POINT pt;
 183             GetCursorPos(&pt);
 184             ScreenToClient(hWnd, &pt);
 185             if (pt.x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 186                 SetCursor(LoadCursor(0, IDC_SIZEWE));
 187                 return TRUE;
 188             }
 189         }
 190         goto def;
 191     case WM_DESTROY:
 192         HeapFree(GetProcessHeap(), 0, pChildWnd);
 193         pChildWnd = NULL;
 194         PostQuitMessage(0);
 195         break;
 196     case WM_LBUTTONDOWN: {
 197             RECT rt;
 198             int x = LOWORD(lParam);
 199             GetClientRect(hWnd, &rt);
 200             if (x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 201                 last_split = pChildWnd->nSplitPos;
 202                 draw_splitbar(hWnd, last_split);
 203                 SetCapture(hWnd);
 204             }
 205             break;
 206         }
 207
 208     case WM_LBUTTONUP:
 209         if (GetCapture() == hWnd) {
 210             RECT rt;
 211             int x = LOWORD(lParam);
 212             draw_splitbar(hWnd, last_split);
 213             last_split = -1;
 214             GetClientRect(hWnd, &rt);
 215             pChildWnd->nSplitPos = x;
 216             ResizeWnd(pChildWnd, rt.right, rt.bottom);
 217             ReleaseCapture();
 218         }
 219         break;
 220
 221     case WM_CAPTURECHANGED:
 222         if (GetCapture()==hWnd && last_split>=0)
 223             draw_splitbar(hWnd, last_split);
 224         break;
 225
 226     case WM_KEYDOWN:
 227         if (wParam == VK_ESCAPE)
 228             if (GetCapture() == hWnd) {
 229                 RECT rt;
 230                 draw_splitbar(hWnd, last_split);
 231                 GetClientRect(hWnd, &rt);
 232                 ResizeWnd(pChildWnd, rt.right, rt.bottom);
 233                 last_split = -1;
 234                 ReleaseCapture();
 235                 SetCursor(LoadCursor(0, IDC_ARROW));
 236             }
 237         break;
 238
 239     case WM_MOUSEMOVE:
 240         if (GetCapture() == hWnd) {
 241             RECT rt;
 242             int x = LOWORD(lParam);
 243             HDC hdc = GetDC(hWnd);
 244             GetClientRect(hWnd, &rt);
 245             rt.left = last_split-SPLIT_WIDTH/2;
 246             rt.right = last_split+SPLIT_WIDTH/2+1;
 247             InvertRect(hdc, &rt);
 248             last_split = x;
 249             rt.left = x-SPLIT_WIDTH/2;
 250             rt.right = x+SPLIT_WIDTH/2+1;
 251             InvertRect(hdc, &rt);
 252             ReleaseDC(hWnd, hdc);
 253         }
 254         break;
 255
 256     case WM_SETFOCUS:
 257         if (pChildWnd != NULL) {
 258             SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 259         }
 260         break;
 261
 262     case WM_TIMER:
 263         break;
 264
 265     case WM_NOTIFY:
 266         if ((int)wParam == TREE_WINDOW) {
 267             switch (((LPNMHDR)lParam)->code) {
 268             case TVN_ITEMEXPANDING:
 269                 return !OnTreeExpanding(pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 270             case TVN_SELCHANGED:
 271                 OnTreeSelectionChanged(pChildWnd->hTreeWnd, pChildWnd->hListWnd,
 272                     ((NMTREEVIEW *)lParam)->itemNew.hItem, TRUE);
 273                 break;
 274             case NM_SETFOCUS:
 275                 pChildWnd->nFocusPanel = 0;
 276                 break;
 277             case NM_RCLICK: {
 278                 POINT pt;
 279                 GetCursorPos(&pt);
 280                 TrackPopupMenu(GetSubMenu(hPopupMenus, PM_NEW),
 281                                TPM_RIGHTBUTTON, pt.x, pt.y, 0, hFrameWnd, NULL);
 282                 break;
 283             }
 284             case TVN_ENDLABELEDIT: {
 285                 HKEY hRootKey;
 286                 LPNMTVDISPINFO dispInfo = (LPNMTVDISPINFO)lParam;
 287                 LPCTSTR path = GetItemPath(pChildWnd->hTreeWnd, 0, &hRootKey);
 288                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 289                 if (res) {
 290                     TVITEMEX item;
 291                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 292                     item.hItem = TreeView_GetSelection(pChildWnd->hTreeWnd);
 293                     item.pszText = dispInfo->item.pszText;
 294                     TreeView_SetItem(pChildWnd->hTreeWnd, &item);
 295                 }
 296                 return res;
 297             }
 298             default:
 299                 return 0; /* goto def; */
 300             }
 301         } else
 302             if ((int)wParam == LIST_WINDOW) {
 303                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 304                     pChildWnd->nFocusPanel = 1;
 305                 } else if (!SendMessage(pChildWnd->hListWnd, WM_NOTIFY_REFLECT, wParam, lParam)) {
 306                     goto def;
 307                 }
 308             }
 309         break;
 310
 311     case WM_SIZE:
 312         if (wParam != SIZE_MINIMIZED && pChildWnd != NULL) {
 313             ResizeWnd(pChildWnd, LOWORD(lParam), HIWORD(lParam));
 314         }
 315         /* fall through */
 316 default: def:
 317         return DefWindowProc(hWnd, message, wParam, lParam);
 318     }
 319     return 0;
 320 }