Sweden-Number/dlls/comctl32/ipaddress.c

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/*
* IP Address control
*
* Copyright 1999 Chris Morgan<cmorgan@wpi.edu> and
* James Abbatiello<abbeyj@wpi.edu>
* Copyright 1998, 1999 Eric Kohl
* Copyright 1998 Alex Priem <alexp@sci.kun.nl>
*
* NOTES
*
* TODO:
* -Edit control doesn't support the ES_CENTER style which prevents
* this ipaddress control from having centered text look like the
* windows ipaddress control
* -Check all notifications/behavior.
* -Optimization:
* -include lpipsi in IPADDRESS_INFO.
* -CurrentFocus: field that has focus at moment of processing.
* -connect Rect32 rcClient.
* -check ipaddress.cpp for missing features.
* -refresh: draw '.' instead of setpixel.
*/
#include <ctype.h>
#include <stdlib.h>
#include "winbase.h"
#include "commctrl.h"
#include "ipaddress.h"
#include "heap.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(ipaddress)
#define IPADDRESS_GetInfoPtr(hwnd) ((IPADDRESS_INFO *)GetWindowLongA (hwnd, 0))
static BOOL
IPADDRESS_SendNotify (HWND hwnd, UINT command);
static BOOL
IPADDRESS_SendIPAddressNotify (HWND hwnd, UINT field, BYTE newValue);
/* property name of tooltip window handle */
#define IP_SUBCLASS_PROP "CCIP32SubclassInfo"
static LRESULT CALLBACK
IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
static VOID
IPADDRESS_Refresh (HWND hwnd, HDC hdc)
{
RECT rcClient;
HBRUSH hbr;
COLORREF clr=GetSysColor (COLOR_3DDKSHADOW);
int i,x,fieldsize;
GetClientRect (hwnd, &rcClient);
hbr = CreateSolidBrush (RGB(255,255,255));
DrawEdge (hdc, &rcClient, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
FillRect (hdc, &rcClient, hbr);
DeleteObject (hbr);
x=rcClient.left;
fieldsize=(rcClient.right-rcClient.left) / 4;
for (i=0; i<3; i++) { /* Should draw text "." here */
x+=fieldsize;
SetPixel (hdc, x, 13, clr);
SetPixel (hdc, x, 14, clr);
SetPixel (hdc, x+1, 13, clr);
SetPixel (hdc, x+1, 14, clr);
}
}
static LRESULT
IPADDRESS_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
IPADDRESS_INFO *infoPtr;
RECT rcClient, edit;
int i,fieldsize;
LPIP_SUBCLASS_INFO lpipsi;
infoPtr = (IPADDRESS_INFO *)COMCTL32_Alloc (sizeof(IPADDRESS_INFO));
SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
GetClientRect (hwnd, &rcClient);
fieldsize=(rcClient.right-rcClient.left) /4;
edit.top =rcClient.top+2;
edit.bottom=rcClient.bottom-2;
lpipsi=(LPIP_SUBCLASS_INFO) GetPropA ((HWND)hwnd, IP_SUBCLASS_PROP);
if (lpipsi == NULL) {
lpipsi = (LPIP_SUBCLASS_INFO) COMCTL32_Alloc (sizeof(IP_SUBCLASS_INFO));
lpipsi->hwnd = hwnd;
lpipsi->uRefCount++;
SetPropA ((HWND)hwnd, IP_SUBCLASS_PROP, (HANDLE)lpipsi);
/* infoPtr->lpipsi= lpipsi; */
} else
WARN("IP-create called twice\n");
for (i=0; i<=3; i++)
{
infoPtr->LowerLimit[i]=0;
infoPtr->UpperLimit[i]=255;
edit.left=rcClient.left+i*fieldsize+6;
edit.right=rcClient.left+(i+1)*fieldsize-2;
lpipsi->hwndIP[i]= CreateWindowA ("edit", NULL,
WS_CHILD | WS_VISIBLE | ES_CENTER,
edit.left, edit.top, edit.right-edit.left, edit.bottom-edit.top,
hwnd, (HMENU) 1, GetWindowLongA (hwnd, GWL_HINSTANCE), NULL);
lpipsi->wpOrigProc[i]= (WNDPROC)
SetWindowLongA (lpipsi->hwndIP[i],GWL_WNDPROC, (LONG)
IPADDRESS_SubclassProc);
SetPropA ((HWND)lpipsi->hwndIP[i], IP_SUBCLASS_PROP, (HANDLE)lpipsi);
}
lpipsi->infoPtr= infoPtr;
return 0;
}
static LRESULT
IPADDRESS_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
int i;
IPADDRESS_INFO *infoPtr = IPADDRESS_GetInfoPtr (hwnd);
LPIP_SUBCLASS_INFO lpipsi=(LPIP_SUBCLASS_INFO)
GetPropA ((HWND)hwnd, IP_SUBCLASS_PROP);
for (i=0; i<=3; i++) {
SetWindowLongA ((HWND)lpipsi->hwndIP[i], GWL_WNDPROC,
(LONG)lpipsi->wpOrigProc[i]);
}
COMCTL32_Free (infoPtr);
return 0;
}
static LRESULT
IPADDRESS_KillFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
TRACE("\n");
hdc = GetDC (hwnd);
IPADDRESS_Refresh (hwnd, hdc);
ReleaseDC (hwnd, hdc);
IPADDRESS_SendIPAddressNotify (hwnd, 0, 0); /* FIXME: should use -1 */
IPADDRESS_SendNotify (hwnd, EN_KILLFOCUS);
InvalidateRect (hwnd, NULL, TRUE);
return 0;
}
static LRESULT
IPADDRESS_Paint (HWND hwnd, WPARAM wParam)
{
HDC hdc;
PAINTSTRUCT ps;
hdc = wParam==0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
IPADDRESS_Refresh (hwnd, hdc);
if(!wParam)
EndPaint (hwnd, &ps);
return 0;
}
static LRESULT
IPADDRESS_SetFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
TRACE("\n");
hdc = GetDC (hwnd);
IPADDRESS_Refresh (hwnd, hdc);
ReleaseDC (hwnd, hdc);
return 0;
}
static LRESULT
IPADDRESS_Size (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
/* IPADDRESS_INFO *infoPtr = IPADDRESS_GetInfoPtr (hwnd); */
TRACE("\n");
return 0;
}
static BOOL
IPADDRESS_SendNotify (HWND hwnd, UINT command)
{
TRACE("%x\n",command);
return (BOOL)SendMessageA (GetParent (hwnd), WM_COMMAND,
MAKEWPARAM (GetWindowLongA (hwnd, GWL_ID),command), (LPARAM)hwnd);
}
static BOOL
IPADDRESS_SendIPAddressNotify (HWND hwnd, UINT field, BYTE newValue)
{
NMIPADDRESS nmip;
TRACE("%x %x\n",field,newValue);
nmip.hdr.hwndFrom = hwnd;
nmip.hdr.idFrom = GetWindowLongA (hwnd, GWL_ID);
nmip.hdr.code = IPN_FIELDCHANGED;
nmip.iField=field;
nmip.iValue=newValue;
return (BOOL)SendMessageA (GetParent (hwnd), WM_NOTIFY,
(WPARAM)nmip.hdr.idFrom, (LPARAM)&nmip);
}
static LRESULT
IPADDRESS_ClearAddress (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
int i;
HDC hdc;
char buf[1];
LPIP_SUBCLASS_INFO lpipsi=(LPIP_SUBCLASS_INFO)
GetPropA ((HWND)hwnd,IP_SUBCLASS_PROP);
TRACE("\n");
buf[0]=0;
for (i=0; i<=3; i++)
SetWindowTextA (lpipsi->hwndIP[i],buf);
hdc = GetDC (hwnd);
IPADDRESS_Refresh (hwnd, hdc);
ReleaseDC (hwnd, hdc);
return 0;
}
static LRESULT
IPADDRESS_IsBlank (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
int i;
char buf[20];
LPIP_SUBCLASS_INFO lpipsi=(LPIP_SUBCLASS_INFO)
GetPropA ((HWND)hwnd, IP_SUBCLASS_PROP);
TRACE("\n");
for (i=0; i<=3; i++) {
GetWindowTextA (lpipsi->hwndIP[i],buf,5);
if (buf[0])
return 0;
}
return 1;
}
static LRESULT
IPADDRESS_GetAddress (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
char field[20];
int i,valid,fieldvalue;
DWORD ip_addr;
IPADDRESS_INFO *infoPtr = IPADDRESS_GetInfoPtr (hwnd);
LPIP_SUBCLASS_INFO lpipsi=(LPIP_SUBCLASS_INFO)
GetPropA ((HWND)hwnd, IP_SUBCLASS_PROP);
TRACE("\n");
valid=0;
ip_addr=0;
for (i=0; i<=3; i++) {
GetWindowTextA (lpipsi->hwndIP[i],field,4);
ip_addr*=256;
if (field[0]) {
field[3]=0;
fieldvalue=atoi(field);
if (fieldvalue<infoPtr->LowerLimit[i])
fieldvalue=infoPtr->LowerLimit[i];
if (fieldvalue>infoPtr->UpperLimit[i])
fieldvalue=infoPtr->UpperLimit[i];
ip_addr+=fieldvalue;
valid++;
}
}
*(LPDWORD) lParam=ip_addr;
return valid;
}
static LRESULT
IPADDRESS_SetRange (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
IPADDRESS_INFO *infoPtr = IPADDRESS_GetInfoPtr (hwnd);
INT index;
TRACE("\n");
index=(INT) wParam;
if ((index<0) || (index>3)) return 0;
infoPtr->LowerLimit[index]=lParam & 0xff;
infoPtr->UpperLimit[index]=(lParam >>8) & 0xff;
return 1;
}
static LRESULT
IPADDRESS_SetAddress (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
IPADDRESS_INFO *infoPtr = IPADDRESS_GetInfoPtr (hwnd);
HDC hdc;
LPIP_SUBCLASS_INFO lpipsi=(LPIP_SUBCLASS_INFO)
GetPropA ((HWND)hwnd, IP_SUBCLASS_PROP);
int i,ip_address,value;
char buf[20];
TRACE("\n");
ip_address=(DWORD) lParam;
for (i=3; i>=0; i--) {
value=ip_address & 0xff;
if ((value>=infoPtr->LowerLimit[i]) && (value<=infoPtr->UpperLimit[i]))
{
sprintf (buf,"%d",value);
SetWindowTextA (lpipsi->hwndIP[i],buf);
IPADDRESS_SendNotify (hwnd, EN_CHANGE);
}
ip_address/=256;
}
hdc = GetDC (hwnd); /* & send notifications */
IPADDRESS_Refresh (hwnd, hdc);
ReleaseDC (hwnd, hdc);
return TRUE;
}
static LRESULT
IPADDRESS_SetFocusToField (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
/* IPADDRESS_INFO *infoPtr = IPADDRESS_GetInfoPtr (hwnd); */
LPIP_SUBCLASS_INFO lpipsi=(LPIP_SUBCLASS_INFO) GetPropA ((HWND)hwnd,
IP_SUBCLASS_PROP);
INT index;
index=(INT) wParam;
TRACE(" %d\n", index);
if ((index<0) || (index>3)) return 0;
SetFocus (lpipsi->hwndIP[index]);
return 1;
}
static LRESULT
IPADDRESS_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TRACE("\n");
SetFocus (hwnd);
IPADDRESS_SendNotify (hwnd, EN_SETFOCUS);
IPADDRESS_SetFocusToField (hwnd, 0, 0);
return TRUE;
}
static INT
IPADDRESS_CheckField (LPIP_SUBCLASS_INFO lpipsi, int currentfield)
{
int newField,fieldvalue;
char field[20];
IPADDRESS_INFO *infoPtr=lpipsi->infoPtr;
if(currentfield >= 0 && currentfield < 4)
{
TRACE("\n");
GetWindowTextA (lpipsi->hwndIP[currentfield],field,4);
if (field[0])
{
field[3]=0;
newField=-1;
fieldvalue=atoi(field);
if (fieldvalue < infoPtr->LowerLimit[currentfield])
newField=infoPtr->LowerLimit[currentfield];
if (fieldvalue > infoPtr->UpperLimit[currentfield])
newField=infoPtr->UpperLimit[currentfield];
if (newField >= 0)
{
sprintf (field,"%d",newField);
SetWindowTextA (lpipsi->hwndIP[currentfield], field);
return TRUE;
}
}
}
return FALSE;
}
static INT
IPADDRESS_GotoNextField (LPIP_SUBCLASS_INFO lpipsi, int currentfield)
{
if(currentfield >= -1 && currentfield < 4)
{
IPADDRESS_CheckField(lpipsi, currentfield); /* check the fields value */
if(currentfield < 3)
{
SetFocus (lpipsi->hwndIP[currentfield+1]);
return TRUE;
}
}
return FALSE;
}
/* period: move and select the text in the next field to the right if */
/* the current field is not empty(l!=0), we are not in the */
/* left most position, and nothing is selected(startsel==endsel) */
/* spacebar: same behavior as period */
/* alpha characters: completely ignored */
/* digits: accepted when field text length < 2 ignored otherwise. */
/* when 3 numbers have been entered into the field the value */
/* of the field is checked, if the field value exceeds the */
/* maximum value and is changed the field remains the current */
/* field, otherwise focus moves to the field to the right */
/* tab: change focus from the current ipaddress control to the next */
/* control in the tab order */
/* right arrow: move to the field on the right to the left most */
/* position in that field if no text is selected, */
/* we are in the right most position in the field, */
/* we are not in the right most field */
/* left arrow: move to the field on the left to the right most */
/* position in that field if no text is selected, */
/* we are in the left most position in the current field */
/* and we are not in the left most field */
/* backspace: delete the character to the left of the cursor position, */
/* if none are present move to the field on the left if */
/* we are not in the left most field and delete the right */
/* most digit in that field while keeping the cursor */
/* on the right side of the field */
LRESULT CALLBACK
IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
IPADDRESS_INFO *infoPtr;
LPIP_SUBCLASS_INFO lpipsi = (LPIP_SUBCLASS_INFO) GetPropA
((HWND)hwnd,IP_SUBCLASS_PROP);
CHAR c = (CHAR)wParam;
INT i, l, index, startsel, endsel;
infoPtr = lpipsi->infoPtr;
index=0; /* FIXME */
for (i=0; i<=3; i++)
if (lpipsi->hwndIP[i]==hwnd) index=i;
switch (uMsg) {
case WM_CHAR:
if(isdigit(c)) /* process all digits */
{
int return_val;
SendMessageA(lpipsi->hwndIP[index], EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
l = GetWindowTextLengthA (lpipsi->hwndIP[index]);
if(l==2 && startsel==endsel) /* field is full after this key is processed */
{
/* process the digit press before we check the field */
return_val = CallWindowProcA (lpipsi->wpOrigProc[index], hwnd, uMsg, wParam, lParam);
/* if the field value was changed stay at the current field */
if(!IPADDRESS_CheckField(lpipsi, index))
IPADDRESS_GotoNextField (lpipsi,index);
return return_val;
}
if(l > 2) /* field is full, stop key messages */
{
lParam = 0;
wParam = 0;
}
break;
}
if(c == '.') /* VK_PERIOD */
{
l = GetWindowTextLengthA(lpipsi->hwndIP[index]);
SendMessageA(lpipsi->hwndIP[index], EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
if(l != 0 && startsel==endsel && startsel != 0)
{
IPADDRESS_GotoNextField(lpipsi, index);
SendMessageA(lpipsi->hwndIP[index+1], EM_SETSEL, (WPARAM)0, (LPARAM)3);
}
}
/* stop all other characters */
wParam = 0;
lParam = 0;
break;
case WM_KEYDOWN:
if(c == VK_SPACE)
{
l = GetWindowTextLengthA(lpipsi->hwndIP[index]);
SendMessageA(lpipsi->hwndIP[index], EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
if(l != 0 && startsel==endsel && startsel != 0)
{
IPADDRESS_GotoNextField(lpipsi, index);
SendMessageA(lpipsi->hwndIP[index+1], EM_SETSEL, (WPARAM)0, (LPARAM)3);
}
}
if(c == VK_RIGHT)
{
SendMessageA(lpipsi->hwndIP[index], EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
l = GetWindowTextLengthA (lpipsi->hwndIP[index]);
if(startsel==endsel && startsel==l)
{
IPADDRESS_GotoNextField(lpipsi, index);
SendMessageA(lpipsi->hwndIP[index+1], EM_SETSEL, (WPARAM)0,(LPARAM)0);
}
}
if(c == VK_LEFT)
{
SendMessageA(lpipsi->hwndIP[index], EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
if(startsel==0 && startsel==endsel && index > 0)
{
IPADDRESS_GotoNextField(lpipsi, index - 2);
l = GetWindowTextLengthA(lpipsi->hwndIP[index-1]);
SendMessageA(lpipsi->hwndIP[index-1], EM_SETSEL, (WPARAM)l,(LPARAM)l);
}
}
if(c == VK_BACK) /* VK_BACKSPACE */
{
CHAR buf[4];
SendMessageA(lpipsi->hwndIP[index], EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
l = GetWindowTextLengthA (lpipsi->hwndIP[index]);
if(startsel==endsel && startsel==0 && index > 0)
{
l = GetWindowTextLengthA(lpipsi->hwndIP[index-1]);
if(l!=0)
{
GetWindowTextA (lpipsi->hwndIP[index-1],buf,4);
buf[l-1] = '\0';
SetWindowTextA(lpipsi->hwndIP[index-1], buf);
SendMessageA(lpipsi->hwndIP[index-1], EM_SETSEL, (WPARAM)l,(LPARAM)l);
}
IPADDRESS_GotoNextField(lpipsi, index - 2);
}
}
break;
default:
break;
}
return CallWindowProcA (lpipsi->wpOrigProc[index], hwnd, uMsg, wParam, lParam);
}
LRESULT WINAPI
IPADDRESS_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case IPM_CLEARADDRESS:
return IPADDRESS_ClearAddress (hwnd, wParam, lParam);
case IPM_SETADDRESS:
return IPADDRESS_SetAddress (hwnd, wParam, lParam);
case IPM_GETADDRESS:
return IPADDRESS_GetAddress (hwnd, wParam, lParam);
case IPM_SETRANGE:
return IPADDRESS_SetRange (hwnd, wParam, lParam);
case IPM_SETFOCUS:
return IPADDRESS_SetFocusToField (hwnd, wParam, lParam);
case IPM_ISBLANK:
return IPADDRESS_IsBlank (hwnd, wParam, lParam);
case WM_CREATE:
return IPADDRESS_Create (hwnd, wParam, lParam);
case WM_DESTROY:
return IPADDRESS_Destroy (hwnd, wParam, lParam);
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTCHARS;
case WM_KILLFOCUS:
return IPADDRESS_KillFocus (hwnd, wParam, lParam);
case WM_LBUTTONDOWN:
return IPADDRESS_LButtonDown (hwnd, wParam, lParam);
case WM_PAINT:
return IPADDRESS_Paint (hwnd, wParam);
case WM_SETFOCUS:
return IPADDRESS_SetFocus (hwnd, wParam, lParam);
case WM_SIZE:
return IPADDRESS_Size (hwnd, wParam, lParam);
default:
if (uMsg >= WM_USER)
ERR("unknown msg %04x wp=%08x lp=%08lx\n",
uMsg, wParam, lParam);
return DefWindowProcA (hwnd, uMsg, wParam, lParam);
}
return 0;
}
void IPADDRESS_Register (void)
{
WNDCLASSA wndClass;
if (GlobalFindAtomA (WC_IPADDRESSA)) return;
ZeroMemory (&wndClass, sizeof(WNDCLASSA));
wndClass.style = CS_GLOBALCLASS;
wndClass.lpfnWndProc = (WNDPROC)IPADDRESS_WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof(IPADDRESS_INFO *);
wndClass.hCursor = LoadCursorA (0, IDC_ARROWA);
wndClass.hbrBackground = (HBRUSH)(COLOR_3DFACE + 1);
wndClass.lpszClassName = WC_IPADDRESSA;
RegisterClassA (&wndClass);
}
VOID IPADDRESS_Unregister (void)
{
if (GlobalFindAtomA (WC_IPADDRESSA))
UnregisterClassA (WC_IPADDRESSA, (HINSTANCE)NULL);
}