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713 lines
24 KiB
C
713 lines
24 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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* Copyright (C) 2008 Alexander N. Sørnes <alex@thehandofagony.com>
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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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#include <windows.h>
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#include <commctrl.h>
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#include <shlwapi.h>
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#include "main.h"
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#include <wine/debug.h>
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WINE_DEFAULT_DEBUG_CHANNEL(regedit);
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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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#define NUM_ICONS 3
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static BOOL UpdateExpandingTree(HWND hwndTV, HTREEITEM hItem, int state);
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static BOOL get_item_path(HWND hwndTV, HTREEITEM hItem, HKEY* phKey, LPWSTR* pKeyPath, int* pPathLen, int* pMaxChars)
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{
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TVITEMW item;
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int maxChars, chars;
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HTREEITEM hParent;
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item.mask = TVIF_PARAM;
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item.hItem = hItem;
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if (!TreeView_GetItemW(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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hParent = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hItem);
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if(!get_item_path(hwndTV, hParent, phKey, pKeyPath, pPathLen, pMaxChars)) return FALSE;
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if (*pPathLen) {
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(*pKeyPath)[*pPathLen] = '\\';
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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 = maxChars = *pMaxChars - *pPathLen;
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if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
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chars = lstrlenW(item.pszText);
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if (chars < maxChars - 1) {
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*pPathLen += chars;
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break;
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}
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*pMaxChars *= 2;
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*pKeyPath = realloc(*pKeyPath, *pMaxChars);
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} while(TRUE);
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return TRUE;
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}
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LPWSTR GetItemPath(HWND hwndTV, HTREEITEM hItem, HKEY* phRootKey)
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{
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int pathLen = 0, maxLen = 1024;
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WCHAR *pathBuffer;
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if (!hItem) {
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hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
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if (!hItem) return NULL;
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}
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pathBuffer = malloc(maxLen * sizeof(WCHAR));
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if (!pathBuffer) return NULL;
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*pathBuffer = 0;
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if (!get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen)) {
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free(pathBuffer);
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return NULL;
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}
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return pathBuffer;
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}
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static LPWSTR get_path_component(LPCWSTR *lplpKeyName) {
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LPCWSTR lpPos = *lplpKeyName;
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LPWSTR lpResult = NULL;
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int len;
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if (!lpPos)
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return NULL;
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while(*lpPos && *lpPos != '\\')
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lpPos++;
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if (*lpPos && lpPos == *lplpKeyName)
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return NULL;
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len = lpPos+1-(*lplpKeyName);
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lpResult = malloc(len * sizeof(WCHAR));
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lstrcpynW(lpResult, *lplpKeyName, len);
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*lplpKeyName = *lpPos ? lpPos+1 : NULL;
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return lpResult;
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}
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HTREEITEM FindPathInTree(HWND hwndTV, LPCWSTR lpKeyName) {
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TVITEMEXW tvi;
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WCHAR buf[261]; /* tree view has 260 character limitation on item name */
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HTREEITEM hRoot, hItem, hOldItem;
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BOOL valid_path;
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buf[260] = '\0';
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hRoot = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
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hItem = hRoot;
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SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hItem );
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hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem);
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hOldItem = hItem;
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valid_path = FALSE;
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while(1) {
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LPWSTR lpItemName = get_path_component(&lpKeyName);
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if (lpItemName) {
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while(hItem) {
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tvi.mask = TVIF_TEXT | TVIF_HANDLE;
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tvi.hItem = hItem;
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tvi.pszText = buf;
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tvi.cchTextMax = 260;
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SendMessageW(hwndTV, TVM_GETITEMW, 0, (LPARAM) &tvi);
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if (!lstrcmpiW(tvi.pszText, lpItemName)) {
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valid_path = TRUE;
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SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hItem );
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if (!lpKeyName)
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{
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free(lpItemName);
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return hItem;
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}
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hOldItem = hItem;
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hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem);
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break;
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}
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hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hItem);
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}
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free(lpItemName);
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if (!hItem)
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return valid_path ? hOldItem : hRoot;
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}
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else
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return valid_path ? hItem : hRoot;
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}
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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 = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
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if (!hItem) return FALSE;
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return (BOOL)SendMessageW(hwndTV, TVM_DELETEITEM, 0, (LPARAM)hItem);
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}
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/* Add an entry to the tree. Only give hKey for root nodes (HKEY_ constants) */
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static HTREEITEM AddEntryToTree(HWND hwndTV, HTREEITEM hParent, LPWSTR label, HKEY hKey, DWORD dwChildren)
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{
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TVINSERTSTRUCTW tvins;
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if (hKey) {
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if (RegQueryInfoKeyW(hKey, 0, 0, 0, &dwChildren, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
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dwChildren = 0;
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}
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}
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tvins.item.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
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tvins.item.pszText = label;
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tvins.item.cchTextMax = lstrlenW(label);
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tvins.item.iImage = Image_Closed;
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tvins.item.iSelectedImage = Image_Open;
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tvins.item.cChildren = dwChildren;
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tvins.item.lParam = (LPARAM)hKey;
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tvins.hInsertAfter = hKey ? TVI_LAST : TVI_SORT;
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tvins.hParent = hParent;
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return TreeView_InsertItemW(hwndTV, &tvins);
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}
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static BOOL match_string(LPCWSTR sstring1, LPCWSTR sstring2, int mode)
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{
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if (mode & SEARCH_WHOLE)
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return !lstrcmpiW(sstring1, sstring2);
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else
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return NULL != StrStrIW(sstring1, sstring2);
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}
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static BOOL match_item(HWND hwndTV, HTREEITEM hItem, LPCWSTR sstring, int mode, int *row)
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{
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TVITEMW item;
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WCHAR keyname[KEY_MAX_LEN];
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item.mask = TVIF_TEXT;
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item.hItem = hItem;
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item.pszText = keyname;
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item.cchTextMax = KEY_MAX_LEN;
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if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
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if ((mode & SEARCH_KEYS) && match_string(keyname, sstring, mode)) {
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*row = -1;
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return TRUE;
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}
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if (mode & (SEARCH_VALUES | SEARCH_CONTENT)) {
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int i, adjust;
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WCHAR *valName, *KeyPath;
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HKEY hKey, hRoot;
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DWORD lenName, lenNameMax, lenValueMax;
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WCHAR *buffer = NULL;
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KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
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if (!KeyPath || !hRoot)
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return FALSE;
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if (RegOpenKeyExW(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS) {
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free(KeyPath);
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return FALSE;
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}
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free(KeyPath);
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if (ERROR_SUCCESS != RegQueryInfoKeyW(hKey, NULL, NULL, NULL, NULL, NULL, NULL, NULL, &lenNameMax, &lenValueMax, NULL, NULL))
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return FALSE;
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lenName = ++lenNameMax;
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valName = malloc(lenName * sizeof(WCHAR));
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adjust = 0;
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/* RegEnumValue won't return empty default value, so fake it when dealing with *row,
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which corresponds to list view rows, not value ids */
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if (ERROR_SUCCESS == RegEnumValueW(hKey, 0, valName, &lenName, NULL, NULL, NULL, NULL) && *valName)
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adjust = 1;
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i = (*row)-adjust;
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if (i < 0) i = 0;
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while(1) {
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DWORD lenValue = 0, type = 0;
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lenName = lenNameMax;
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if (ERROR_SUCCESS != RegEnumValueW(hKey,
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i, valName, &lenName, NULL, &type, NULL, NULL))
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break;
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if (mode & SEARCH_VALUES) {
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if (match_string(valName, sstring, mode)) {
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free(valName);
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free(buffer);
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RegCloseKey(hKey);
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*row = i+adjust;
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return TRUE;
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}
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}
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if ((mode & SEARCH_CONTENT) && (type == REG_EXPAND_SZ || type == REG_SZ)) {
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if (!buffer)
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buffer = malloc(lenValueMax);
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lenName = lenNameMax;
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lenValue = lenValueMax;
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if (ERROR_SUCCESS != RegEnumValueW(hKey, i, valName, &lenName, NULL, &type, (LPBYTE)buffer, &lenValue))
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break;
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if (match_string(buffer, sstring, mode)) {
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free(valName);
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free(buffer);
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RegCloseKey(hKey);
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*row = i+adjust;
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return TRUE;
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}
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}
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i++;
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}
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free(valName);
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free(buffer);
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RegCloseKey(hKey);
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}
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return FALSE;
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}
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HTREEITEM FindNext(HWND hwndTV, HTREEITEM hItem, LPCWSTR sstring, int mode, int *row)
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{
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HTREEITEM hTry, hLast;
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hLast = hItem;
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(*row)++;
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if (match_item(hwndTV, hLast, sstring, mode & ~SEARCH_KEYS, row)) {
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return hLast;
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}
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*row = 0;
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while(hLast) {
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/* first look in subtree */
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/* no children? maybe we haven't loaded them yet? */
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if (!SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hLast)) {
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UINT state = (UINT)SendMessageW(hwndTV, TVM_GETITEMSTATE, (WPARAM)hLast, -1);
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UpdateExpandingTree(hwndTV, hLast, state);
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}
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hTry = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hLast);
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if (hTry) {
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if (match_item(hwndTV, hTry, sstring, mode, row))
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return hTry;
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hLast = hTry;
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continue;
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}
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/* no more children, maybe there are any siblings? */
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hTry = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hLast);
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if (hTry) {
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if (match_item(hwndTV, hTry, sstring, mode, row))
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return hTry;
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hLast = hTry;
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continue;
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}
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/* no more siblings, look at the next siblings in parent(s) */
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hLast = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hLast);
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if (!hLast)
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return NULL;
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while (hLast && (hTry = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hLast)) == NULL) {
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hLast = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hLast);
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}
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if (match_item(hwndTV, hTry, sstring, mode, row))
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return hTry;
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hLast = hTry;
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}
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return NULL;
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}
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static BOOL RefreshTreeItem(HWND hwndTV, HTREEITEM hItem)
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{
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HKEY hRoot, hKey, hSubKey;
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HTREEITEM childItem;
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LPWSTR KeyPath;
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DWORD dwCount, dwIndex, dwMaxSubKeyLen;
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LPWSTR Name;
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TVITEMW tvItem;
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hRoot = NULL;
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KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
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if (!KeyPath || !hRoot)
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return FALSE;
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if (*KeyPath) {
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if (RegOpenKeyExW(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS) {
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WINE_TRACE("RegOpenKeyEx failed, %s was probably removed.\n", wine_dbgstr_w(KeyPath));
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return FALSE;
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}
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} else {
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hKey = hRoot;
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}
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free(KeyPath);
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if (RegQueryInfoKeyW(hKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
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return FALSE;
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}
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/* Set the number of children again */
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tvItem.mask = TVIF_CHILDREN;
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tvItem.hItem = hItem;
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tvItem.cChildren = dwCount;
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if (!TreeView_SetItemW(hwndTV, &tvItem)) {
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return FALSE;
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}
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/* We don't have to bother with the rest if it's not expanded. */
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if (SendMessageW(hwndTV, TVM_GETITEMSTATE, (WPARAM)hItem, TVIS_EXPANDED) == 0) {
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RegCloseKey(hKey);
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return TRUE;
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}
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dwMaxSubKeyLen++; /* account for the \0 terminator */
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Name = malloc(dwMaxSubKeyLen * sizeof(WCHAR));
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tvItem.cchTextMax = dwMaxSubKeyLen;
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tvItem.pszText = malloc(dwMaxSubKeyLen * sizeof(WCHAR));
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/* Now go through all the children in the registry, and check if any have to be added. */
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for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
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DWORD cName = dwMaxSubKeyLen, dwSubCount;
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BOOL found;
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found = FALSE;
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if (RegEnumKeyExW(hKey, dwIndex, Name, &cName, 0, 0, 0, NULL) != ERROR_SUCCESS) {
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continue;
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}
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/* Find the number of children of the node. */
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dwSubCount = 0;
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if (RegOpenKeyExW(hKey, Name, 0, KEY_QUERY_VALUE, &hSubKey) == ERROR_SUCCESS) {
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if (RegQueryInfoKeyW(hSubKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
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dwSubCount = 0;
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}
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RegCloseKey(hSubKey);
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}
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/* Check if the node is already in there. */
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for (childItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem); childItem;
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childItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)childItem)) {
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tvItem.mask = TVIF_TEXT;
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tvItem.hItem = childItem;
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if (!TreeView_GetItemW(hwndTV, &tvItem)) {
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free(Name);
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free(tvItem.pszText);
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return FALSE;
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}
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if (!lstrcmpiW(tvItem.pszText, Name)) {
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found = TRUE;
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break;
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}
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}
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if (found == FALSE) {
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WINE_TRACE("New subkey %s\n", wine_dbgstr_w(Name));
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AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
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}
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}
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free(Name);
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free(tvItem.pszText);
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RegCloseKey(hKey);
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/* Now go through all the children in the tree, and check if any have to be removed. */
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childItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem);
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while (childItem) {
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HTREEITEM nextItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)childItem);
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if (RefreshTreeItem(hwndTV, childItem) == FALSE) {
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SendMessageW(hwndTV, TVM_DELETEITEM, 0, (LPARAM)childItem);
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}
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childItem = nextItem;
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}
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return TRUE;
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}
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static void treeview_sort_item(HWND hWnd, HTREEITEM item)
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{
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HTREEITEM child = (HTREEITEM)SendMessageW(hWnd, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)item);
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while (child != NULL) {
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treeview_sort_item(hWnd, child);
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child = (HTREEITEM)SendMessageW(hWnd, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)child);
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}
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SendMessageW(hWnd, TVM_SORTCHILDREN, 0, (LPARAM)item);
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}
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BOOL RefreshTreeView(HWND hwndTV)
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{
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HTREEITEM hItem;
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HTREEITEM hSelectedItem;
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HCURSOR hcursorOld;
|
|
HTREEITEM hRoot;
|
|
|
|
WINE_TRACE("\n");
|
|
hSelectedItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
|
|
hcursorOld = SetCursor(LoadCursorW(NULL, (LPCWSTR)IDC_WAIT));
|
|
SendMessageW(hwndTV, WM_SETREDRAW, FALSE, 0);
|
|
|
|
hRoot = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
|
|
hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hRoot);
|
|
while (hItem) {
|
|
RefreshTreeItem(hwndTV, hItem);
|
|
treeview_sort_item(hwndTV, hItem);
|
|
hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hItem);
|
|
}
|
|
|
|
SendMessageW(hwndTV, WM_SETREDRAW, TRUE, 0);
|
|
InvalidateRect(hwndTV, NULL, FALSE);
|
|
SetCursor(hcursorOld);
|
|
|
|
/* We reselect the currently selected node, this will prompt a refresh of the listview. */
|
|
SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hSelectedItem);
|
|
return TRUE;
|
|
}
|
|
|
|
HTREEITEM InsertNode(HWND hwndTV, HTREEITEM hItem, LPWSTR name)
|
|
{
|
|
WCHAR buf[MAX_NEW_KEY_LEN];
|
|
HTREEITEM hNewItem = 0;
|
|
TVITEMEXW item;
|
|
|
|
if (!hItem) hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
|
|
if (!hItem) return FALSE;
|
|
if (SendMessageW(hwndTV, TVM_GETITEMSTATE, (WPARAM)hItem, TVIS_EXPANDEDONCE) & TVIS_EXPANDEDONCE) {
|
|
hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
|
|
} else {
|
|
item.mask = TVIF_CHILDREN | TVIF_HANDLE;
|
|
item.hItem = hItem;
|
|
if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
|
|
item.cChildren = 1;
|
|
if (!TreeView_SetItemW(hwndTV, &item)) return FALSE;
|
|
}
|
|
SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hItem );
|
|
if (!hNewItem) {
|
|
for(hNewItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem); hNewItem;
|
|
hNewItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hNewItem)) {
|
|
item.mask = TVIF_HANDLE | TVIF_TEXT;
|
|
item.hItem = hNewItem;
|
|
item.pszText = buf;
|
|
item.cchTextMax = ARRAY_SIZE(buf);
|
|
if (!TreeView_GetItemW(hwndTV, &item)) continue;
|
|
if (lstrcmpW(name, item.pszText) == 0) break;
|
|
}
|
|
}
|
|
if (hNewItem)
|
|
SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hNewItem);
|
|
|
|
return hNewItem;
|
|
}
|
|
|
|
HWND StartKeyRename(HWND hwndTV)
|
|
{
|
|
HTREEITEM hItem;
|
|
|
|
if(!(hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0))) return 0;
|
|
SetWindowLongPtrW(hwndTV, GWLP_USERDATA, 1);
|
|
return (HWND)SendMessageW(hwndTV, TVM_EDITLABELW, 0, (LPARAM)hItem);
|
|
}
|
|
|
|
static BOOL InitTreeViewItems(HWND hwndTV, LPWSTR pHostName)
|
|
{
|
|
TVINSERTSTRUCTW tvins;
|
|
HTREEITEM hRoot;
|
|
static WCHAR hkcr[] = L"HKEY_CLASSES_ROOT",
|
|
hkcu[] = L"HKEY_CURRENT_USER",
|
|
hklm[] = L"HKEY_LOCAL_MACHINE",
|
|
hku[] = L"HKEY_USERS",
|
|
hkcc[] = L"HKEY_CURRENT_CONFIG",
|
|
hkdd[] = L"HKEY_DYN_DATA";
|
|
|
|
tvins.item.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
|
|
/* Set the text of the item. */
|
|
tvins.item.pszText = pHostName;
|
|
tvins.item.cchTextMax = lstrlenW(pHostName);
|
|
/* Assume the item is not a parent item, so give it an image. */
|
|
tvins.item.iImage = Image_Root;
|
|
tvins.item.iSelectedImage = Image_Root;
|
|
tvins.item.cChildren = 5;
|
|
/* Save the heading level in the item's application-defined data area. */
|
|
tvins.item.lParam = 0;
|
|
tvins.hInsertAfter = TVI_FIRST;
|
|
tvins.hParent = TVI_ROOT;
|
|
/* Add the item to the tree view control. */
|
|
if (!(hRoot = TreeView_InsertItemW(hwndTV, &tvins))) return FALSE;
|
|
|
|
if (!AddEntryToTree(hwndTV, hRoot, hkcr, HKEY_CLASSES_ROOT, 1)) return FALSE;
|
|
if (!AddEntryToTree(hwndTV, hRoot, hkcu, HKEY_CURRENT_USER, 1)) return FALSE;
|
|
if (!AddEntryToTree(hwndTV, hRoot, hklm, HKEY_LOCAL_MACHINE, 1)) return FALSE;
|
|
if (!AddEntryToTree(hwndTV, hRoot, hku, HKEY_USERS, 1)) return FALSE;
|
|
if (!AddEntryToTree(hwndTV, hRoot, hkcc, HKEY_CURRENT_CONFIG, 1)) return FALSE;
|
|
if (!AddEntryToTree(hwndTV, hRoot, hkdd, HKEY_DYN_DATA, 1)) return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
* InitTreeViewImageLists - creates an image list, adds three bitmaps
|
|
* to it, and associates the image list with a tree view control.
|
|
* Returns TRUE if successful, or FALSE otherwise.
|
|
* hwndTV - handle to the tree view control.
|
|
*/
|
|
static BOOL InitTreeViewImageLists(HWND hwndTV)
|
|
{
|
|
HIMAGELIST himl; /* handle to image list */
|
|
HICON hico; /* handle to icon */
|
|
INT cx = GetSystemMetrics(SM_CXSMICON);
|
|
INT cy = GetSystemMetrics(SM_CYSMICON);
|
|
|
|
/* Create the image list. */
|
|
if ((himl = ImageList_Create(cx, cy, ILC_MASK, 0, NUM_ICONS)) == NULL)
|
|
return FALSE;
|
|
|
|
/* Add the open file, closed file, and document bitmaps. */
|
|
hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_OPEN_FILE));
|
|
Image_Open = ImageList_AddIcon(himl, hico);
|
|
|
|
hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_CLOSED_FILE));
|
|
Image_Closed = ImageList_AddIcon(himl, hico);
|
|
|
|
hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_ROOT));
|
|
Image_Root = ImageList_AddIcon(himl, hico);
|
|
|
|
/* Fail if not all of the images were added. */
|
|
if (ImageList_GetImageCount(himl) < NUM_ICONS)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
/* Associate the image list with the tree view control. */
|
|
SendMessageW(hwndTV, TVM_SETIMAGELIST, TVSIL_NORMAL, (LPARAM)himl);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL UpdateExpandingTree(HWND hwndTV, HTREEITEM hItem, int state)
|
|
{
|
|
DWORD dwCount, dwIndex, dwMaxSubKeyLen;
|
|
HKEY hRoot, hNewKey, hKey;
|
|
LPWSTR keyPath;
|
|
LPWSTR Name;
|
|
LONG errCode;
|
|
HCURSOR hcursorOld;
|
|
TVITEMW item;
|
|
|
|
static int expanding;
|
|
if (expanding) return FALSE;
|
|
if (state & TVIS_EXPANDEDONCE ) {
|
|
return TRUE;
|
|
}
|
|
expanding = TRUE;
|
|
hcursorOld = SetCursor(LoadCursorW(NULL, (LPCWSTR)IDC_WAIT));
|
|
SendMessageW(hwndTV, WM_SETREDRAW, FALSE, 0);
|
|
|
|
keyPath = GetItemPath(hwndTV, hItem, &hRoot);
|
|
if (!keyPath) goto done;
|
|
|
|
if (*keyPath) {
|
|
errCode = RegOpenKeyExW(hRoot, keyPath, 0, KEY_READ, &hNewKey);
|
|
if (errCode != ERROR_SUCCESS) goto done;
|
|
} else {
|
|
hNewKey = hRoot;
|
|
}
|
|
|
|
errCode = RegQueryInfoKeyW(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
|
|
if (errCode != ERROR_SUCCESS) goto done;
|
|
dwMaxSubKeyLen++; /* account for the \0 terminator */
|
|
Name = malloc(dwMaxSubKeyLen * sizeof(WCHAR));
|
|
|
|
for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
|
|
DWORD cName = dwMaxSubKeyLen, dwSubCount;
|
|
|
|
errCode = RegEnumKeyExW(hNewKey, dwIndex, Name, &cName, 0, 0, 0, 0);
|
|
if (errCode != ERROR_SUCCESS) continue;
|
|
errCode = RegOpenKeyExW(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
|
|
if (errCode == ERROR_SUCCESS) {
|
|
errCode = RegQueryInfoKeyW(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
|
|
RegCloseKey(hKey);
|
|
}
|
|
if (errCode != ERROR_SUCCESS) dwSubCount = 0;
|
|
AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
|
|
}
|
|
RegCloseKey(hNewKey);
|
|
free(Name);
|
|
|
|
done:
|
|
item.mask = TVIF_STATE;
|
|
item.hItem = hItem;
|
|
item.stateMask = TVIS_EXPANDEDONCE;
|
|
item.state = TVIS_EXPANDEDONCE;
|
|
SendMessageW(hwndTV, TVM_SETITEMW, 0, (LPARAM)&item);
|
|
SendMessageW(hwndTV, WM_SETREDRAW, TRUE, 0);
|
|
SetCursor(hcursorOld);
|
|
expanding = FALSE;
|
|
free(keyPath);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL OnTreeExpanding(HWND hwndTV, NMTREEVIEWW* pnmtv)
|
|
{
|
|
return UpdateExpandingTree(hwndTV, pnmtv->itemNew.hItem, pnmtv->itemNew.state);
|
|
}
|
|
|
|
|
|
/*
|
|
* CreateTreeView - creates a tree view control.
|
|
* Returns the handle to the new control if successful, or NULL otherwise.
|
|
* hwndParent - handle to the control's parent window.
|
|
*/
|
|
HWND CreateTreeView(HWND hwndParent, LPWSTR pHostName, UINT id)
|
|
{
|
|
RECT rcClient;
|
|
HWND hwndTV;
|
|
|
|
/* Get the dimensions of the parent window's client area, and create the tree view control. */
|
|
GetClientRect(hwndParent, &rcClient);
|
|
hwndTV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW, L"Tree View",
|
|
WS_VISIBLE | WS_CHILD | WS_TABSTOP | WS_CLIPSIBLINGS |
|
|
TVS_HASLINES | TVS_HASBUTTONS |
|
|
TVS_LINESATROOT | TVS_EDITLABELS | TVS_SHOWSELALWAYS,
|
|
0, 0, rcClient.right, rcClient.bottom,
|
|
hwndParent, ULongToHandle(id), hInst, NULL);
|
|
SendMessageW(hwndTV, TVM_SETUNICODEFORMAT, TRUE, 0);
|
|
/* Initialize the image list, and add items to the control. */
|
|
if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName)) {
|
|
DestroyWindow(hwndTV);
|
|
return NULL;
|
|
}
|
|
return hwndTV;
|
|
}
|