ipaddress.c

winNT技术操作系统,国外开放的原代码和LIUX一样

/*
 * IP Address control
 *
 * Copyright 2002 Dimitrie O. Paun
 * Copyright 1999 Chris Morgan<[e-mail]>
 * Copyright 1999 James Abbatiello<[e-mail]>
 * Copyright 1998, 1999 Eric Kohl
 * Copyright 1998 Alex Priem <[e-mail]>
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 *
 * NOTE
 * 
 * This code was audited for completeness against the documented features
 * of Comctl32.dll version 6.0 on Sep. 9, 2002, by Dimitrie O. Paun.
 * 
 * Unless otherwise noted, we believe this code to be complete, as per
 * the specification mentioned above.
 * If you discover missing features, or bugs, please note them below.
 * 
 */

#include <ctype.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>

#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "commctrl.h"
#include "comctl32.h"
#include "wine/unicode.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(ipaddress);

typedef struct
{
    HWND     EditHwnd;
    INT      LowerLimit;
    INT      UpperLimit;
    WNDPROC  OrigProc;
} IPPART_INFO;

typedef struct
{
    HWND	Self;
    HWND	Notify;
    BOOL	Enabled;
    IPPART_INFO	Part[4];
} IPADDRESS_INFO;

static const WCHAR IP_SUBCLASS_PROP[] = 
    { 'C', 'C', 'I', 'P', '3', '2', 'S', 'u', 'b', 'c', 'l', 'a', 's', 's', 'I', 'n', 'f', 'o', 0 };

#define POS_DEFAULT	0
#define POS_LEFT	1
#define POS_RIGHT	2
#define POS_SELALL	3

static LRESULT CALLBACK
IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

static LRESULT IPADDRESS_Notify (IPADDRESS_INFO *infoPtr, UINT command)
{
    HWND hwnd = infoPtr->Self;

    TRACE("(command=%x)\n", command);

    return SendMessageW (infoPtr->Notify, WM_COMMAND,
             MAKEWPARAM (GetWindowLongPtrW (hwnd, GWLP_ID), command), (LPARAM)hwnd);
}

static INT IPADDRESS_IPNotify (IPADDRESS_INFO *infoPtr, INT field, INT value)
{
    NMIPADDRESS nmip;

    TRACE("(field=%x, value=%d)\n", field, value);

    nmip.hdr.hwndFrom = infoPtr->Self;
    nmip.hdr.idFrom   = GetWindowLongPtrW (infoPtr->Self, GWLP_ID);
    nmip.hdr.code     = IPN_FIELDCHANGED;

    nmip.iField = field;
    nmip.iValue = value;

    SendMessageW (infoPtr->Notify, WM_NOTIFY,
                  (WPARAM)nmip.hdr.idFrom, (LPARAM)&nmip);

    TRACE("<-- %d\n", nmip.iValue);

    return nmip.iValue;
}


static int IPADDRESS_GetPartIndex(IPADDRESS_INFO *infoPtr, HWND hwnd)
{
    int i;

    TRACE("(hwnd=%p)\n", hwnd);

    for (i = 0; i < 4; i++)
        if (infoPtr->Part[i].EditHwnd == hwnd) return i;

    ERR("We subclassed the wrong window! (hwnd=%p)\n", hwnd);
    return -1;
}


static LRESULT IPADDRESS_Draw (IPADDRESS_INFO *infoPtr, HDC hdc)
{
    static const WCHAR dotW[] = { '.', 0 };
    RECT rect, rcPart;
    POINT pt;
    COLORREF bgCol, fgCol;
    int i;

    TRACE("\n");

    GetClientRect (infoPtr->Self, &rect);

    if (infoPtr->Enabled) {
        bgCol = COLOR_WINDOW;
        fgCol = COLOR_WINDOWTEXT;
    } else {
        bgCol = COLOR_3DFACE;
        fgCol = COLOR_GRAYTEXT;
    }
    
    FillRect (hdc, &rect, (HBRUSH)(DWORD_PTR)(bgCol+1));
    DrawEdge (hdc, &rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
    
    SetBkColor  (hdc, GetSysColor(bgCol));
    SetTextColor(hdc, GetSysColor(fgCol));

    for (i = 0; i < 3; i++) {
        GetWindowRect (infoPtr->Part[i].EditHwnd, &rcPart);
	pt.x = rcPart.right;
	ScreenToClient(infoPtr->Self, &pt);
	rect.left = pt.x;
	GetWindowRect (infoPtr->Part[i+1].EditHwnd, &rcPart);
	pt.x = rcPart.left;
	ScreenToClient(infoPtr->Self, &pt);
	rect.right = pt.x;
	DrawTextW(hdc, dotW, 1, &rect, DT_SINGLELINE | DT_CENTER | DT_BOTTOM);
    }

    return 0;
}


static LRESULT IPADDRESS_Create (HWND hwnd, LPCREATESTRUCTA lpCreate)
{
    static const WCHAR EDIT[] = { 'E', 'd', 'i', 't', 0 };
    IPADDRESS_INFO *infoPtr;
    RECT rcClient, edit;
    int i, fieldsize;

    TRACE("\n");

    SetWindowLongW (hwnd, GWL_STYLE,
		    GetWindowLongW(hwnd, GWL_STYLE) & ~WS_BORDER);

    infoPtr = (IPADDRESS_INFO *)Alloc (sizeof(IPADDRESS_INFO));
    if (!infoPtr) return -1;
    SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);

    GetClientRect (hwnd, &rcClient);

    fieldsize = (rcClient.right - rcClient.left) / 4;

    edit.top    = rcClient.top + 2;
    edit.bottom = rcClient.bottom - 2;

    infoPtr->Self = hwnd;
    infoPtr->Enabled = TRUE;
    infoPtr->Notify = lpCreate->hwndParent;

    for (i = 0; i < 4; i++) {
	IPPART_INFO* part = &infoPtr->Part[i];

	part->LowerLimit = 0;
	part->UpperLimit = 255;
        edit.left = rcClient.left + i*fieldsize + 6;
        edit.right = rcClient.left + (i+1)*fieldsize - 2;
        part->EditHwnd =
		CreateWindowW (EDIT, NULL, WS_CHILD | WS_VISIBLE | ES_CENTER,
                               edit.left, edit.top, edit.right - edit.left,
			       edit.bottom - edit.top, hwnd, (HMENU) 1,
			       (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE), NULL);
	SetPropW(part->EditHwnd, IP_SUBCLASS_PROP, hwnd);
        part->OrigProc = (WNDPROC)
		SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC,
				(DWORD_PTR)IPADDRESS_SubclassProc);
        EnableWindow(part->EditHwnd, infoPtr->Enabled);
    }

    return 0;
}


static LRESULT IPADDRESS_Destroy (IPADDRESS_INFO *infoPtr)
{
    int i;

    TRACE("\n");

    for (i = 0; i < 4; i++) {
	IPPART_INFO* part = &infoPtr->Part[i];
        SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC, (DWORD_PTR)part->OrigProc);
    }

    SetWindowLongPtrW (infoPtr->Self, 0, 0);
    Free (infoPtr);
    return 0;
}


static LRESULT IPADDRESS_Enable (IPADDRESS_INFO *infoPtr, BOOL enabled)
{
    int i;

    infoPtr->Enabled = enabled;

    for (i = 0; i < 4; i++)
        EnableWindow(infoPtr->Part[i].EditHwnd, enabled);

    InvalidateRgn(infoPtr->Self, NULL, FALSE);
    return 0;
}


static LRESULT IPADDRESS_Paint (IPADDRESS_INFO *infoPtr, HDC hdc)
{
    PAINTSTRUCT ps;

    TRACE("\n");

    if (hdc) return IPADDRESS_Draw (infoPtr, hdc);

    hdc = BeginPaint (infoPtr->Self, &ps);
    IPADDRESS_Draw (infoPtr, hdc);
    EndPaint (infoPtr->Self, &ps);
    return 0;
}


static BOOL IPADDRESS_IsBlank (IPADDRESS_INFO *infoPtr)
{
    int i;

    TRACE("\n");

    for (i = 0; i < 4; i++)
        if (GetWindowTextLengthW (infoPtr->Part[i].EditHwnd)) return FALSE;

    return TRUE;
}


static int IPADDRESS_GetAddress (IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
{
    WCHAR field[5];
    int i, invalid = 0;
    DWORD ip_addr = 0;

    TRACE("\n");

    for (i = 0; i < 4; i++) {
        ip_addr *= 256;
        if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
  	    ip_addr += atolW(field);
	else
	    invalid++;
    }
    *ip_address = ip_addr;

    return 4 - invalid;
}


static BOOL IPADDRESS_SetRange (IPADDRESS_INFO *infoPtr, int index, WORD range)
{
    TRACE("\n");

    if ( (index < 0) || (index > 3) ) return FALSE;

    infoPtr->Part[index].LowerLimit = range & 0xFF;
    infoPtr->Part[index].UpperLimit = (range >> 8)  & 0xFF;

    return TRUE;
}