323 lines
10 KiB
C
323 lines
10 KiB
C
/*
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* Regedit treeview
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*
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* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define WIN32_LEAN_AND_MEAN /* Exclude rarely-used stuff from Windows headers */
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include <windows.h>
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#include <commctrl.h>
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#include <stdlib.h>
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#include <tchar.h>
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#include <process.h>
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#include <stdio.h>
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#include "main.h"
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/* Global variables and constants */
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/* Image_Open, Image_Closed, and Image_Root - integer variables for indexes of the images. */
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/* CX_BITMAP and CY_BITMAP - width and height of an icon. */
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/* NUM_BITMAPS - number of bitmaps to add to the image list. */
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int Image_Open;
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int Image_Closed;
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int Image_Root;
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static LPTSTR pathBuffer;
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#define CX_ICON 16
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#define CY_ICON 16
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#define NUM_ICONS 3
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static BOOL get_item_path(HWND hwndTV, HTREEITEM hItem, HKEY* phKey, LPTSTR* pKeyPath, int* pPathLen, int* pMaxLen)
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{
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TVITEM item;
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int maxLen, len;
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LPTSTR newStr;
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item.mask = TVIF_PARAM;
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item.hItem = hItem;
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if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
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if (item.lParam) {
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/* found root key with valid key value */
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*phKey = (HKEY)item.lParam;
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return TRUE;
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}
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if(!get_item_path(hwndTV, TreeView_GetParent(hwndTV, hItem), phKey, pKeyPath, pPathLen, pMaxLen)) return FALSE;
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if (*pPathLen) {
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(*pKeyPath)[*pPathLen] = _T('\\');
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++(*pPathLen);
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}
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do {
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item.mask = TVIF_TEXT;
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item.hItem = hItem;
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item.pszText = *pKeyPath + *pPathLen;
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item.cchTextMax = maxLen = *pMaxLen - *pPathLen;
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if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
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len = _tcslen(item.pszText);
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if (len < maxLen - 1) {
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*pPathLen += len;
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break;
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}
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newStr = HeapReAlloc(GetProcessHeap(), 0, *pKeyPath, *pMaxLen * 2);
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if (!newStr) return FALSE;
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*pKeyPath = newStr;
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*pMaxLen *= 2;
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} while(TRUE);
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return TRUE;
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}
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LPCTSTR GetItemPath(HWND hwndTV, HTREEITEM hItem, HKEY* phRootKey)
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{
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int pathLen = 0, maxLen;
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if (!pathBuffer) pathBuffer = HeapAlloc(GetProcessHeap(), 0, 1024);
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if (!pathBuffer) return NULL;
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*pathBuffer = 0;
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maxLen = HeapSize(GetProcessHeap(), 0, pathBuffer);
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if (maxLen == (SIZE_T) - 1) return NULL;
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if (!hItem) hItem = TreeView_GetSelection(hwndTV);
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if (!hItem) return NULL;
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if (!get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen)) return NULL;
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return pathBuffer;
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}
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BOOL DeleteNode(HWND hwndTV, HTREEITEM hItem)
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{
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if (!hItem) hItem = TreeView_GetSelection(hwndTV);
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if (!hItem) return FALSE;
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return TreeView_DeleteItem(hwndTV, hItem);
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}
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static HTREEITEM AddEntryToTree(HWND hwndTV, HTREEITEM hParent, LPTSTR label, HKEY hKey, DWORD dwChildren)
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{
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TVITEM tvi;
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TVINSERTSTRUCT tvins;
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tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
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tvi.pszText = label;
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tvi.cchTextMax = lstrlen(tvi.pszText);
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tvi.iImage = Image_Closed;
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tvi.iSelectedImage = Image_Open;
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tvi.cChildren = dwChildren;
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tvi.lParam = (LPARAM)hKey;
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tvins.u.item = tvi;
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tvins.hInsertAfter = (HTREEITEM)(hKey ? TVI_LAST : TVI_SORT);
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tvins.hParent = hParent;
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return TreeView_InsertItem(hwndTV, &tvins);
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}
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HTREEITEM InsertNode(HWND hwndTV, HTREEITEM hItem, LPTSTR name)
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{
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TCHAR buf[MAX_NEW_KEY_LEN];
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HTREEITEM hNewItem = 0;
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TVITEMEX item;
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if (!hItem) hItem = TreeView_GetSelection(hwndTV);
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if (!hItem) return FALSE;
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if (TreeView_GetItemState(hwndTV, hItem, TVIS_EXPANDEDONCE)) {
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hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
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} else {
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item.mask = TVIF_CHILDREN | TVIF_HANDLE;
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item.hItem = hItem;
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if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
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item.cChildren = 1;
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if (!TreeView_SetItem(hwndTV, &item)) return FALSE;
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}
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TreeView_Expand(hwndTV, hItem, TVE_EXPAND);
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if (!hNewItem) {
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for(hNewItem = TreeView_GetChild(hwndTV, hItem); hNewItem; hNewItem = TreeView_GetNextSibling(hwndTV, hNewItem)) {
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item.mask = TVIF_HANDLE | TVIF_TEXT;
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item.hItem = hNewItem;
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item.pszText = buf;
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item.cchTextMax = COUNT_OF(buf);
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if (!TreeView_GetItem(hwndTV, &item)) continue;
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if (lstrcmp(name, item.pszText) == 0) break;
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}
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}
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if (hNewItem) TreeView_SelectItem(hwndTV, hNewItem);
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return hNewItem;
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}
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HWND StartKeyRename(HWND hwndTV)
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{
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HTREEITEM hItem;
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if(!(hItem = TreeView_GetSelection(hwndTV))) return 0;
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return TreeView_EditLabel(hwndTV, hItem);
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}
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static BOOL InitTreeViewItems(HWND hwndTV, LPTSTR pHostName)
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{
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TVITEM tvi;
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TVINSERTSTRUCT tvins;
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HTREEITEM hRoot;
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tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
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/* Set the text of the item. */
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tvi.pszText = pHostName;
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tvi.cchTextMax = lstrlen(tvi.pszText);
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/* Assume the item is not a parent item, so give it an image. */
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tvi.iImage = Image_Root;
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tvi.iSelectedImage = Image_Root;
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tvi.cChildren = 5;
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/* Save the heading level in the item's application-defined data area. */
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tvi.lParam = (LPARAM)NULL;
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tvins.u.item = tvi;
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tvins.hInsertAfter = (HTREEITEM)TVI_FIRST;
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tvins.hParent = TVI_ROOT;
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/* Add the item to the tree view control. */
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if (!(hRoot = TreeView_InsertItem(hwndTV, &tvins))) return FALSE;
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if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CLASSES_ROOT"), HKEY_CLASSES_ROOT, 1)) return FALSE;
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if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_USER"), HKEY_CURRENT_USER, 1)) return FALSE;
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if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_LOCAL_MACHINE"), HKEY_LOCAL_MACHINE, 1)) return FALSE;
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if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_USERS"), HKEY_USERS, 1)) return FALSE;
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if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_CONFIG"), HKEY_CURRENT_CONFIG, 1)) return FALSE;
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/* expand and select host name */
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TreeView_Expand(hwndTV, hRoot, TVE_EXPAND);
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TreeView_Select(hwndTV, hRoot, TVGN_CARET);
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return TRUE;
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}
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/*
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* InitTreeViewImageLists - creates an image list, adds three bitmaps
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* to it, and associates the image list with a tree view control.
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* Returns TRUE if successful, or FALSE otherwise.
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* hwndTV - handle to the tree view control.
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*/
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static BOOL InitTreeViewImageLists(HWND hwndTV)
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{
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HIMAGELIST himl; /* handle to image list */
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HICON hico; /* handle to icon */
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/* Create the image list. */
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if ((himl = ImageList_Create(CX_ICON, CY_ICON,
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ILC_MASK, 0, NUM_ICONS)) == NULL)
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return FALSE;
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/* Add the open file, closed file, and document bitmaps. */
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hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_OPEN_FILE));
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Image_Open = ImageList_AddIcon(himl, hico);
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hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_CLOSED_FILE));
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Image_Closed = ImageList_AddIcon(himl, hico);
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hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_ROOT));
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Image_Root = ImageList_AddIcon(himl, hico);
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/* Fail if not all of the images were added. */
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if (ImageList_GetImageCount(himl) < NUM_ICONS)
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{
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return FALSE;
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}
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/* Associate the image list with the tree view control. */
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TreeView_SetImageList(hwndTV, himl, TVSIL_NORMAL);
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return TRUE;
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}
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BOOL OnTreeExpanding(HWND hwndTV, NMTREEVIEW* pnmtv)
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{
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DWORD dwCount, dwIndex, dwMaxSubKeyLen;
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HKEY hRoot, hNewKey, hKey;
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LPCTSTR keyPath;
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LPTSTR Name;
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LONG errCode;
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static int expanding;
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if (expanding) return FALSE;
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if (pnmtv->itemNew.state & TVIS_EXPANDEDONCE ) {
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return TRUE;
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}
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expanding = TRUE;
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keyPath = GetItemPath(hwndTV, pnmtv->itemNew.hItem, &hRoot);
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if (!keyPath) goto done;
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if (*keyPath) {
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errCode = RegOpenKeyEx(hRoot, keyPath, 0, KEY_READ, &hNewKey);
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if (errCode != ERROR_SUCCESS) goto done;
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} else {
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hNewKey = hRoot;
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}
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errCode = RegQueryInfoKey(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
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if (errCode != ERROR_SUCCESS) goto done;
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dwMaxSubKeyLen++; /* account for the \0 terminator */
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Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR));
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if (!Name) goto done;
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for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
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DWORD cName = dwMaxSubKeyLen, dwSubCount;
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FILETIME LastWriteTime;
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errCode = RegEnumKeyEx(hNewKey, dwIndex, Name, &cName, 0, 0, 0, &LastWriteTime);
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if (errCode != ERROR_SUCCESS) continue;
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errCode = RegOpenKeyEx(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
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if (errCode == ERROR_SUCCESS) {
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errCode = RegQueryInfoKey(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
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RegCloseKey(hKey);
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}
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if (errCode != ERROR_SUCCESS) dwSubCount = 0;
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AddEntryToTree(hwndTV, pnmtv->itemNew.hItem, Name, NULL, dwSubCount);
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}
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RegCloseKey(hNewKey);
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HeapFree(GetProcessHeap(), 0, Name);
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done:
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expanding = FALSE;
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return TRUE;
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}
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/*
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* CreateTreeView - creates a tree view control.
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* Returns the handle to the new control if successful, or NULL otherwise.
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* hwndParent - handle to the control's parent window.
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*/
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HWND CreateTreeView(HWND hwndParent, LPTSTR pHostName, int id)
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{
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RECT rcClient;
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HWND hwndTV;
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/* Get the dimensions of the parent window's client area, and create the tree view control. */
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GetClientRect(hwndParent, &rcClient);
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hwndTV = CreateWindowEx(WS_EX_CLIENTEDGE, WC_TREEVIEW, _T("Tree View"),
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WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT,
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0, 0, rcClient.right, rcClient.bottom,
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hwndParent, (HMENU)id, hInst, NULL);
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/* Initialize the image list, and add items to the control. */
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if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName)) {
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DestroyWindow(hwndTV);
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return NULL;
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}
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return hwndTV;
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}
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