mirror of
https://github.com/reactos/reactos.git
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258 lines
8.8 KiB
C
258 lines
8.8 KiB
C
/*
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* ReactOS regedit
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*
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* treeview.c
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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 program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifdef _MSC_VER
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#include "stdafx.h"
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#else
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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 <stdlib.h>
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#include <malloc.h>
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#include <memory.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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#endif
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#include "main.h"
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#include "treeview.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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#define CX_BITMAP 16
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#define CY_BITMAP 16
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#define NUM_BITMAPS 3
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HKEY FindRegRoot(HWND hwndTV, HTREEITEM hItem, LPTSTR keyPath, int* pPathLen, int max)
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{
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HKEY hKey = NULL;
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TVITEM item;
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item.mask = TVIF_PARAM;
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item.hItem = TreeView_GetParent(hwndTV, hItem);
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if (TreeView_GetItem(hwndTV, &item)) {
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if (item.lParam == 0) {
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// recurse
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hKey = FindRegRoot(hwndTV, item.hItem, keyPath, pPathLen, max);
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keyPath[*pPathLen] = _T('\\');
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++(*pPathLen);
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item.mask = TVIF_TEXT;
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item.hItem = hItem;
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item.pszText = &keyPath[*pPathLen];
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item.cchTextMax = max - *pPathLen;
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if (TreeView_GetItem(hwndTV, &item)) {
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*pPathLen += _tcslen(item.pszText);
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}
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} else {
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// found root key with valid key value
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hKey = (HKEY)item.lParam;
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item.mask = TVIF_TEXT;
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item.hItem = hItem;
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// item.pszText = &keyPath[*pPathLen];
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item.pszText = keyPath;
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item.cchTextMax = max;
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if (TreeView_GetItem(hwndTV, &item)) {
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*pPathLen += _tcslen(item.pszText);
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}
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}
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}
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return hKey;
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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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HTREEITEM hItem = 0;
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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.item = tvi;
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if (hKey) tvins.hInsertAfter = (HTREEITEM)TVI_LAST;
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else tvins.hInsertAfter = (HTREEITEM)TVI_SORT;
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tvins.hParent = hParent;
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hItem = (HTREEITEM)SendMessage(hwndTV, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvins);
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return 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.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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hRoot = (HTREEITEM)SendMessage(hwndTV, TVM_INSERTITEM, 0, (LPARAM)(LPTVINSERTSTRUCT)&tvins);
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AddEntryToTree(hwndTV, hRoot, _T("HKEY_CLASSES_ROOT"), HKEY_CLASSES_ROOT, 1);
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AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_USER"), HKEY_CURRENT_USER, 1);
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AddEntryToTree(hwndTV, hRoot, _T("HKEY_LOCAL_MACHINE"), HKEY_LOCAL_MACHINE, 1);
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AddEntryToTree(hwndTV, hRoot, _T("HKEY_USERS"), HKEY_USERS, 1);
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AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_CONFIG"), HKEY_CURRENT_CONFIG, 1);
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return TRUE;
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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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static BOOL InitTreeViewImageLists(HWND hwndTV)
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{
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HIMAGELIST himl; // handle to image list
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HBITMAP hbmp; // handle to bitmap
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// Create the image list.
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if ((himl = ImageList_Create(CX_BITMAP, CY_BITMAP,
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FALSE, NUM_BITMAPS, 0)) == NULL)
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return FALSE;
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// Add the open file, closed file, and document bitmaps.
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hbmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_OPEN_FILE));
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Image_Open = ImageList_Add(himl, hbmp, (HBITMAP) NULL);
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DeleteObject(hbmp);
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hbmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_CLOSED_FILE));
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Image_Closed = ImageList_Add(himl, hbmp, (HBITMAP) NULL);
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DeleteObject(hbmp);
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hbmp = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_ROOT));
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Image_Root = ImageList_Add(himl, hbmp, (HBITMAP) NULL);
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DeleteObject(hbmp);
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// Fail if not all of the images were added.
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if (ImageList_GetImageCount(himl) < 3)
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return FALSE;
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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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HKEY hKey;
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TCHAR keyPath[1000];
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int keyPathLen = 0;
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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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// check if this is either the root or a subkey item...
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if ((HKEY)pnmtv->itemNew.lParam == NULL) {
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keyPath[0] = _T('\0');
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hKey = FindRegRoot(hwndTV, pnmtv->itemNew.hItem, keyPath, &keyPathLen, sizeof(keyPath)/sizeof(TCHAR));
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} else {
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hKey = (HKEY)pnmtv->itemNew.lParam;
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keyPath[0] = _T('\0');
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}
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if (hKey != NULL) {
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HKEY hNewKey;
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LONG errCode = RegOpenKeyEx(hKey, keyPath, 0, KEY_READ, &hNewKey);
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if (errCode == ERROR_SUCCESS) {
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TCHAR Name[MAX_NAME_LEN];
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DWORD cName = MAX_NAME_LEN;
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FILETIME LastWriteTime;
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DWORD dwIndex = 0L;
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//ShowWindow(hwndTV, SW_HIDE);
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while (RegEnumKeyEx(hNewKey, dwIndex, Name, &cName, NULL, NULL, NULL, &LastWriteTime) == ERROR_SUCCESS) {
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DWORD dwCount = 0L;
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errCode = RegOpenKeyEx(hNewKey, Name, 0, KEY_READ, &hKey);
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if (errCode == ERROR_SUCCESS) {
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TCHAR SubName[MAX_NAME_LEN];
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DWORD cSubName = MAX_NAME_LEN;
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// if (RegEnumKeyEx(hKey, 0, SubName, &cSubName, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) {
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while (RegEnumKeyEx(hKey, dwCount, SubName, &cSubName, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) {
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++dwCount;
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}
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}
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RegCloseKey(hKey);
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AddEntryToTree(hwndTV, pnmtv->itemNew.hItem, Name, NULL, dwCount);
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cName = MAX_NAME_LEN;
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++dwIndex;
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}
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//ShowWindow(hwndTV, SW_SHOWNOACTIVATE);
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RegCloseKey(hNewKey);
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}
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} else {
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}
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expanding = FALSE;
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return TRUE;
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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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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 | 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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