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 ChildWnd* g_pChildWnd;
  30
  31 /*******************************************************************************
  32  * Local module support methods
  33  */
  34
  35 static LPCTSTR get_root_key_name(HKEY hRootKey)
  36 {
  37     if (hRootKey == HKEY_CLASSES_ROOT) return _T("HKEY_CLASSES_ROOT");
  38     if (hRootKey == HKEY_CURRENT_USER) return _T("HKEY_CURRENT_USER");
  39     if (hRootKey == HKEY_LOCAL_MACHINE) return _T("HKEY_LOCAL_MACHINE");
  40     if (hRootKey == HKEY_USERS) return _T("HKEY_USERS");
  41     if (hRootKey == HKEY_CURRENT_CONFIG) return _T("HKEY_CURRENT_CONFIG");
  42     return _T("UKNOWN HKEY, PLEASE REPORT");
  43 }
  44
  45 static void draw_splitbar(HWND hWnd, int x)
  46 {
  47     RECT rt;
  48     HDC hdc = GetDC(hWnd);
  49
  50     GetClientRect(hWnd, &rt);
  51     rt.left = x - SPLIT_WIDTH/2;
  52     rt.right = x + SPLIT_WIDTH/2+1;
  53     InvertRect(hdc, &rt);
  54     ReleaseDC(hWnd, hdc);
  55 }
  56
  57 static void ResizeWnd(ChildWnd* pChildWnd, int cx, int cy)
  58 {
  59     HDWP hdwp = BeginDeferWindowPos(2);
  60     RECT rt = {0, 0, cx, cy};
  61
  62     cx = pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  63     DeferWindowPos(hdwp, pChildWnd->hTreeWnd, 0, rt.left, rt.top, pChildWnd->nSplitPos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  64     DeferWindowPos(hdwp, pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  65     EndDeferWindowPos(hdwp);
  66 }
  67
  68 static void OnPaint(HWND hWnd)
  69 {
  70     PAINTSTRUCT ps;
  71     RECT rt;
  72     HDC hdc;
  73
  74     GetClientRect(hWnd, &rt);
  75     hdc = BeginPaint(hWnd, &ps);
  76     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
  77     EndPaint(hWnd, &ps);
  78 }
  79
  80 /*******************************************************************************
  81  *
  82  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
  83  *
  84  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
  85  *
  86  */
  87
  88 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
  89 {
  90     switch (LOWORD(wParam)) {
  91         /* Parse the menu selections: */
  92     case ID_REGISTRY_EXIT:
  93         DestroyWindow(hWnd);
  94         break;
  95     case ID_VIEW_REFRESH:
  96         /* TODO */
  97         break;
  98     default:
  99         return FALSE;
 100     }
 101     return TRUE;
 102 }
 103
 104 /*******************************************************************************
 105  *
 106  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 107  *
 108  *  PURPOSE:  Processes messages for the child windows.
 109  *
 110  *  WM_COMMAND  - process the application menu
 111  *  WM_PAINT    - Paint the main window
 112  *  WM_DESTROY  - post a quit message and return
 113  *
 114  */
 115 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 116 {
 117     static int last_split;
 118     ChildWnd* pChildWnd = g_pChildWnd;
 119
 120     switch (message) {
 121     case WM_CREATE:
 122         g_pChildWnd = pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
 123         if (!pChildWnd) return 0;
 124         _tcsncpy(pChildWnd->szPath, _T("My Computer"), MAX_PATH);
 125         pChildWnd->nSplitPos = 250;
 126         pChildWnd->hWnd = hWnd;
 127         pChildWnd->hTreeWnd = CreateTreeView(hWnd, pChildWnd->szPath, TREE_WINDOW);
 128         pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, pChildWnd->szPath*/);
 129         SetFocus(pChildWnd->hTreeWnd);
 130         break;
 131     case WM_COMMAND:
 132         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 133             goto def;
 134         }
 135         break;
 136     case WM_PAINT:
 137         OnPaint(hWnd);
 138         return 0;
 139     case WM_SETCURSOR:
 140         if (LOWORD(lParam) == HTCLIENT) {
 141             POINT pt;
 142             GetCursorPos(&pt);
 143             ScreenToClient(hWnd, &pt);
 144             if (pt.x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 145                 SetCursor(LoadCursor(0, IDC_SIZEWE));
 146                 return TRUE;
 147             }
 148         }
 149         goto def;
 150     case WM_DESTROY:
 151         HeapFree(GetProcessHeap(), 0, pChildWnd);
 152         pChildWnd = NULL;
 153         PostQuitMessage(0);
 154         break;
 155     case WM_LBUTTONDOWN: {
 156             RECT rt;
 157             int x = LOWORD(lParam);
 158             GetClientRect(hWnd, &rt);
 159             if (x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 160                 last_split = pChildWnd->nSplitPos;
 161                 draw_splitbar(hWnd, last_split);
 162                 SetCapture(hWnd);
 163             }
 164             break;
 165         }
 166
 167     case WM_LBUTTONUP:
 168         if (GetCapture() == hWnd) {
 169             RECT rt;
 170             int x = LOWORD(lParam);
 171             draw_splitbar(hWnd, last_split);
 172             last_split = -1;
 173             GetClientRect(hWnd, &rt);
 174             pChildWnd->nSplitPos = x;
 175             ResizeWnd(pChildWnd, rt.right, rt.bottom);
 176             ReleaseCapture();
 177         }
 178         break;
 179
 180     case WM_CAPTURECHANGED:
 181         if (GetCapture()==hWnd && last_split>=0)
 182             draw_splitbar(hWnd, last_split);
 183         break;
 184
 185     case WM_KEYDOWN:
 186         if (wParam == VK_ESCAPE)
 187             if (GetCapture() == hWnd) {
 188                 RECT rt;
 189                 draw_splitbar(hWnd, last_split);
 190                 GetClientRect(hWnd, &rt);
 191                 ResizeWnd(pChildWnd, rt.right, rt.bottom);
 192                 last_split = -1;
 193                 ReleaseCapture();
 194                 SetCursor(LoadCursor(0, IDC_ARROW));
 195             }
 196         break;
 197
 198     case WM_MOUSEMOVE:
 199         if (GetCapture() == hWnd) {
 200             RECT rt;
 201             int x = LOWORD(lParam);
 202             HDC hdc = GetDC(hWnd);
 203             GetClientRect(hWnd, &rt);
 204             rt.left = last_split-SPLIT_WIDTH/2;
 205             rt.right = last_split+SPLIT_WIDTH/2+1;
 206             InvertRect(hdc, &rt);
 207             last_split = x;
 208             rt.left = x-SPLIT_WIDTH/2;
 209             rt.right = x+SPLIT_WIDTH/2+1;
 210             InvertRect(hdc, &rt);
 211             ReleaseDC(hWnd, hdc);
 212         }
 213         break;
 214
 215     case WM_SETFOCUS:
 216         if (pChildWnd != NULL) {
 217             SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
 218         }
 219         break;
 220
 221     case WM_TIMER:
 222         break;
 223
 224     case WM_NOTIFY:
 225         if ((int)wParam == TREE_WINDOW) {
 226             switch (((LPNMHDR)lParam)->code) {
 227             case TVN_ITEMEXPANDING:
 228                 return !OnTreeExpanding(pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
 229             case TVN_SELCHANGED: {
 230                     LPCTSTR keyPath, rootName;
 231                     LPTSTR fullPath;
 232                     HKEY hRootKey;
 233
 234                     keyPath = GetItemPath(pChildWnd->hTreeWnd, ((NMTREEVIEW*)lParam)->itemNew.hItem, &hRootKey);
 235                     if (keyPath) {
 236                         RefreshListView(pChildWnd->hListWnd, hRootKey, keyPath);
 237                         rootName = get_root_key_name(hRootKey);
 238                         fullPath = HeapAlloc(GetProcessHeap(), 0, (lstrlen(rootName) + 1 + lstrlen(keyPath) + 1) * sizeof(TCHAR));
 239                         if (fullPath) {
 240                             _stprintf(fullPath, "%s\\%s", rootName, keyPath);
 241                             SendMessage(hStatusBar, SB_SETTEXT, 0, (LPARAM)fullPath);
 242                             HeapFree(GetProcessHeap(), 0, fullPath);
 243                         }
 244                     }
 245                 }
 246                 break;
 247             case NM_SETFOCUS:
 248                 pChildWnd->nFocusPanel = 1;
 249                 break;
 250             case TVN_ENDLABELEDIT: {
 251                 HKEY hRootKey;
 252                 LPNMTVDISPINFO dispInfo = (LPNMTVDISPINFO)lParam;
 253                 LPCTSTR path = GetItemPath(pChildWnd->hTreeWnd, 0, &hRootKey);
 254                 BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 255                 if (res) {
 256                     TVITEMEX item;
 257                     item.mask = TVIF_HANDLE | TVIF_TEXT;
 258                     item.hItem = TreeView_GetSelection(pChildWnd->hTreeWnd);
 259                     item.pszText = dispInfo->item.pszText;
 260                     TreeView_SetItem(pChildWnd->hTreeWnd, &item);
 261                 }
 262                 return res;
 263             }
 264             default:
 265                 goto def;
 266             }
 267         } else
 268             if ((int)wParam == LIST_WINDOW) {
 269                 if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
 270                     pChildWnd->nFocusPanel = 0;
 271                 } else if (!SendMessage(pChildWnd->hListWnd, message, wParam, lParam)) {
 272                     goto def;
 273                 }
 274             }
 275         break;
 276
 277     case WM_SIZE:
 278         if (wParam != SIZE_MINIMIZED && pChildWnd != NULL) {
 279             ResizeWnd(pChildWnd, LOWORD(lParam), HIWORD(lParam));
 280         }
 281         /* fall through */
 282 default: def:
 283         return DefWindowProc(hWnd, message, wParam, lParam);
 284     }
 285     return 0;
 286 }