Sweden-Number/programs/regedit/childwnd.c

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/*
* Regedit child window
*
* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define WIN32_LEAN_AND_MEAN /* Exclude rarely-used stuff from Windows headers */
#include <windows.h>
#include <commctrl.h>
#include <tchar.h>
#include <stdio.h>
#include "main.h"
ChildWnd* g_pChildWnd;
/*******************************************************************************
* Local module support methods
*/
static LPCTSTR get_root_key_name(HKEY hRootKey)
{
if (hRootKey == HKEY_CLASSES_ROOT) return _T("HKEY_CLASSES_ROOT");
if (hRootKey == HKEY_CURRENT_USER) return _T("HKEY_CURRENT_USER");
if (hRootKey == HKEY_LOCAL_MACHINE) return _T("HKEY_LOCAL_MACHINE");
if (hRootKey == HKEY_USERS) return _T("HKEY_USERS");
if (hRootKey == HKEY_CURRENT_CONFIG) return _T("HKEY_CURRENT_CONFIG");
return _T("UKNOWN HKEY, PLEASE REPORT");
}
static void draw_splitbar(HWND hWnd, int x)
{
RECT rt;
HDC hdc = GetDC(hWnd);
GetClientRect(hWnd, &rt);
rt.left = x - SPLIT_WIDTH/2;
rt.right = x + SPLIT_WIDTH/2+1;
InvertRect(hdc, &rt);
ReleaseDC(hWnd, hdc);
}
static void ResizeWnd(ChildWnd* pChildWnd, int cx, int cy)
{
HDWP hdwp = BeginDeferWindowPos(2);
RECT rt = {0, 0, cx, cy};
cx = pChildWnd->nSplitPos + SPLIT_WIDTH/2;
DeferWindowPos(hdwp, pChildWnd->hTreeWnd, 0, rt.left, rt.top, pChildWnd->nSplitPos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
DeferWindowPos(hdwp, pChildWnd->hListWnd, 0, rt.left+cx , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
EndDeferWindowPos(hdwp);
}
static void OnPaint(HWND hWnd)
{
PAINTSTRUCT ps;
RECT rt;
HDC hdc;
GetClientRect(hWnd, &rt);
hdc = BeginPaint(hWnd, &ps);
FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
EndPaint(hWnd, &ps);
}
/*******************************************************************************
*
* FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
*
* PURPOSE: Processes WM_COMMAND messages for the main frame window.
*
*/
static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (LOWORD(wParam)) {
/* Parse the menu selections: */
case ID_REGISTRY_EXIT:
DestroyWindow(hWnd);
break;
case ID_VIEW_REFRESH:
/* TODO */
break;
default:
return FALSE;
}
return TRUE;
}
/*******************************************************************************
*
* FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
*
* PURPOSE: Processes messages for the child windows.
*
* WM_COMMAND - process the application menu
* WM_PAINT - Paint the main window
* WM_DESTROY - post a quit message and return
*
*/
LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static int last_split;
ChildWnd* pChildWnd = g_pChildWnd;
switch (message) {
case WM_CREATE:
g_pChildWnd = pChildWnd = HeapAlloc(GetProcessHeap(), 0, sizeof(ChildWnd));
if (!pChildWnd) return 0;
_tcsncpy(pChildWnd->szPath, _T("My Computer"), MAX_PATH);
pChildWnd->nSplitPos = 250;
pChildWnd->hWnd = hWnd;
pChildWnd->hTreeWnd = CreateTreeView(hWnd, pChildWnd->szPath, TREE_WINDOW);
pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, pChildWnd->szPath*/);
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SetFocus(pChildWnd->hTreeWnd);
break;
case WM_COMMAND:
if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
goto def;
}
break;
case WM_PAINT:
OnPaint(hWnd);
return 0;
case WM_SETCURSOR:
if (LOWORD(lParam) == HTCLIENT) {
POINT pt;
GetCursorPos(&pt);
ScreenToClient(hWnd, &pt);
if (pt.x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
SetCursor(LoadCursor(0, IDC_SIZEWE));
return TRUE;
}
}
goto def;
case WM_DESTROY:
HeapFree(GetProcessHeap(), 0, pChildWnd);
pChildWnd = NULL;
PostQuitMessage(0);
break;
case WM_LBUTTONDOWN: {
RECT rt;
int x = LOWORD(lParam);
GetClientRect(hWnd, &rt);
if (x>=pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
last_split = pChildWnd->nSplitPos;
draw_splitbar(hWnd, last_split);
SetCapture(hWnd);
}
break;
}
case WM_LBUTTONUP:
if (GetCapture() == hWnd) {
RECT rt;
int x = LOWORD(lParam);
draw_splitbar(hWnd, last_split);
last_split = -1;
GetClientRect(hWnd, &rt);
pChildWnd->nSplitPos = x;
ResizeWnd(pChildWnd, rt.right, rt.bottom);
ReleaseCapture();
}
break;
case WM_CAPTURECHANGED:
if (GetCapture()==hWnd && last_split>=0)
draw_splitbar(hWnd, last_split);
break;
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
if (GetCapture() == hWnd) {
RECT rt;
draw_splitbar(hWnd, last_split);
GetClientRect(hWnd, &rt);
ResizeWnd(pChildWnd, rt.right, rt.bottom);
last_split = -1;
ReleaseCapture();
SetCursor(LoadCursor(0, IDC_ARROW));
}
break;
case WM_MOUSEMOVE:
if (GetCapture() == hWnd) {
RECT rt;
int x = LOWORD(lParam);
HDC hdc = GetDC(hWnd);
GetClientRect(hWnd, &rt);
rt.left = last_split-SPLIT_WIDTH/2;
rt.right = last_split+SPLIT_WIDTH/2+1;
InvertRect(hdc, &rt);
last_split = x;
rt.left = x-SPLIT_WIDTH/2;
rt.right = x+SPLIT_WIDTH/2+1;
InvertRect(hdc, &rt);
ReleaseDC(hWnd, hdc);
}
break;
case WM_SETFOCUS:
if (pChildWnd != NULL) {
SetFocus(pChildWnd->nFocusPanel? pChildWnd->hListWnd: pChildWnd->hTreeWnd);
}
break;
case WM_TIMER:
break;
case WM_NOTIFY:
if ((int)wParam == TREE_WINDOW) {
switch (((LPNMHDR)lParam)->code) {
case TVN_ITEMEXPANDING:
return !OnTreeExpanding(pChildWnd->hTreeWnd, (NMTREEVIEW*)lParam);
case TVN_SELCHANGED: {
LPCTSTR keyPath, rootName;
LPTSTR fullPath;
HKEY hRootKey;
keyPath = GetItemPath(pChildWnd->hTreeWnd, ((NMTREEVIEW*)lParam)->itemNew.hItem, &hRootKey);
if (keyPath) {
RefreshListView(pChildWnd->hListWnd, hRootKey, keyPath);
rootName = get_root_key_name(hRootKey);
fullPath = HeapAlloc(GetProcessHeap(), 0, (lstrlen(rootName) + 1 + lstrlen(keyPath) + 1) * sizeof(TCHAR));
if (fullPath) {
_stprintf(fullPath, "%s\\%s", rootName, keyPath);
SendMessage(hStatusBar, SB_SETTEXT, 0, (LPARAM)fullPath);
HeapFree(GetProcessHeap(), 0, fullPath);
}
}
}
break;
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case NM_SETFOCUS:
pChildWnd->nFocusPanel = 1;
break;
default:
goto def;
}
} else
if ((int)wParam == LIST_WINDOW) {
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if (((LPNMHDR)lParam)->code == NM_SETFOCUS) {
pChildWnd->nFocusPanel = 0;
} else if (!SendMessage(pChildWnd->hListWnd, message, wParam, lParam)) {
goto def;
}
}
break;
case WM_SIZE:
if (wParam != SIZE_MINIMIZED && pChildWnd != NULL) {
ResizeWnd(pChildWnd, LOWORD(lParam), HIWORD(lParam));
}
/* fall through */
default: def:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}