reactos/rosapps/regedt32/childwnd.c

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/*
* ReactOS regedt32
*
* childwnd.c
*
* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef _MSC_VER
#include "stdafx.h"
#else
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <windows.h>
#include <commctrl.h>
#include <stdlib.h>
#include <malloc.h>
#include <memory.h>
#include <tchar.h>
#include <process.h>
#include <stdio.h>
#endif
#include <assert.h>
#define ASSERT assert
#include "main.h"
#include "childwnd.h"
////////////////////////////////////////////////////////////////////////////////
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 OnPaint(HWND hWnd, ChildWnd* pChildWnd)
{
PAINTSTRUCT ps;
RECT rt;
HDC hdc;
GetClientRect(hWnd, &rt);
hdc = BeginPaint(hWnd, &ps);
FillRect(ps.hdc, &rt, GetStockObject(BLACK_BRUSH));
EndPaint(hWnd, &ps);
}
static void OnSize(ChildWnd* pChildWnd, WPARAM wParam, LPARAM lParam)
{
if (wParam != SIZE_MINIMIZED) {
//resize_tree(pChildWnd, LOWORD(lParam), HIWORD(lParam));
}
}
//
// 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 = (ChildWnd*)GetWindowLong(hWnd, GWL_USERDATA);
ASSERT(pChildWnd);
switch (message) {
case WM_PAINT:
OnPaint(hWnd, pChildWnd);
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;
break;
case WM_DESTROY:
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;
#ifdef _NO_EXTENSIONS
draw_splitbar(hWnd, last_split);
#endif
SetCapture(hWnd);
}
break;}
case WM_LBUTTONUP:
if (GetCapture() == hWnd) {
#ifdef _NO_EXTENSIONS
RECT rt;
int x = LOWORD(lParam);
draw_splitbar(hWnd, last_split);
last_split = -1;
GetClientRect(hWnd, &rt);
pChildWnd->nSplitPos = x;
//resize_tree(pChildWnd, rt.right, rt.bottom);
#endif
ReleaseCapture();
}
break;
#ifdef _NO_EXTENSIONS
case WM_CAPTURECHANGED:
if (GetCapture()==hWnd && last_split>=0)
draw_splitbar(hWnd, last_split);
break;
#endif
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
if (GetCapture() == hWnd) {
RECT rt;
#ifdef _NO_EXTENSIONS
draw_splitbar(hWnd, last_split);
#else
pChildWnd->nSplitPos = last_split;
#endif
GetClientRect(hWnd, &rt);
//resize_tree(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);
#ifdef _NO_EXTENSIONS
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);
#else
GetClientRect(hWnd, &rt);
if (x>=0 && x<rt.right) {
pChildWnd->nSplitPos = x;
//resize_tree(pChildWnd, rt.right, rt.bottom);
rt.left = x-SPLIT_WIDTH/2;
rt.right = x+SPLIT_WIDTH/2+1;
InvalidateRect(hWnd, &rt, FALSE);
UpdateWindow(pChildWnd->hLeftWnd);
UpdateWindow(hWnd);
UpdateWindow(pChildWnd->hRightWnd);
}
#endif
}
break;
#ifndef _NO_EXTENSIONS
case WM_GETMINMAXINFO:
DefMDIChildProc(hWnd, message, wParam, lParam);
{LPMINMAXINFO lpmmi = (LPMINMAXINFO)lParam;
lpmmi->ptMaxTrackSize.x <<= 1;//2*GetSystemMetrics(SM_CXSCREEN) / SM_CXVIRTUALSCREEN
lpmmi->ptMaxTrackSize.y <<= 1;//2*GetSystemMetrics(SM_CYSCREEN) / SM_CYVIRTUALSCREEN
break;}
#endif
case WM_SETFOCUS:
SetCurrentDirectory(pChildWnd->szPath);
SetFocus(pChildWnd->nFocusPanel? pChildWnd->hRightWnd: pChildWnd->hLeftWnd);
break;
case WM_TIMER:
break;
case WM_COMMAND:
// Parse the menu selections:
switch (LOWORD(wParam)) {
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefMDIChildProc(hWnd, message, wParam, lParam);
}
break;
case WM_SIZE:
if (wParam != SIZE_MINIMIZED) {
OnSize(pChildWnd, wParam, lParam);
}
// fall through
default:
return DefMDIChildProc(hWnd, message, wParam, lParam);
}
return 0;
}