1 /*
2 * IP Address control
3 *
4 * Copyright 2002 Dimitrie O. Paun
5 * Copyright 1999 Chris Morgan<cmorgan@wpi.edu>
6 * Copyright 1999 James Abbatiello<abbeyj@wpi.edu>
7 * Copyright 1998, 1999 Eric Kohl
8 * Copyright 1998 Alex Priem <alexp@sci.kun.nl>
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 *
24 * NOTE
25 *
26 * This code was audited for completeness against the documented features
27 * of Comctl32.dll version 6.0 on Sep. 9, 2002, by Dimitrie O. Paun.
28 *
29 * Unless otherwise noted, we believe this code to be complete, as per
30 * the specification mentioned above.
31 * If you discover missing features, or bugs, please note them below.
32 *
33 */
34
35 #include <ctype.h>
36 #include <stdlib.h>
37 #include <stdarg.h>
38 #include <stdio.h>
39 #include <string.h>
40
41 #include "windef.h"
42 #include "winbase.h"
43 #include "wingdi.h"
44 #include "winuser.h"
45 #include "winnls.h"
46 #include "commctrl.h"
47 #include "comctl32.h"
48 #include "wine/unicode.h"
49 #include "wine/debug.h"
50
51 WINE_DEFAULT_DEBUG_CHANNEL(ipaddress);
52
53 typedef struct
54 {
55 HWND EditHwnd;
56 INT LowerLimit;
57 INT UpperLimit;
58 WNDPROC OrigProc;
59 } IPPART_INFO;
60
61 typedef struct
62 {
63 HWND Self;
64 HWND Notify;
65 BOOL Enabled;
66 IPPART_INFO Part[4];
67 } IPADDRESS_INFO;
68
69 static const WCHAR IP_SUBCLASS_PROP[] =
70 { 'C', 'C', 'I', 'P', '3', '2', 'S', 'u', 'b', 'c', 'l', 'a', 's', 's', 'I', 'n', 'f', 'o', 0 };
71
72 #define POS_DEFAULT 0
73 #define POS_LEFT 1
74 #define POS_RIGHT 2
75 #define POS_SELALL 3
76
77 static LRESULT CALLBACK
78 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
79
80 static void IPADDRESS_UpdateText (const IPADDRESS_INFO *infoPtr)
81 {
82 static const WCHAR zero[2] = {'', 0};
83 static const WCHAR dot[2] = {'.', 0};
84 WCHAR field[4];
85 WCHAR ip[16];
86 INT i;
87
88 ip[0] = 0;
89
90 for (i = 0; i < 4; i++) {
91 if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
92 strcatW(ip, field);
93 else
94 /* empty edit treated as zero */
95 strcatW(ip, zero);
96 if (i != 3)
97 strcatW(ip, dot);
98 }
99
100 SetWindowTextW(infoPtr->Self, ip);
101 }
102
103 static LRESULT IPADDRESS_Notify (const IPADDRESS_INFO *infoPtr, UINT command)
104 {
105 HWND hwnd = infoPtr->Self;
106
107 TRACE("(command=%x)\n", command);
108
109 return SendMessageW (infoPtr->Notify, WM_COMMAND,
110 MAKEWPARAM (GetWindowLongPtrW (hwnd, GWLP_ID), command), (LPARAM)hwnd);
111 }
112
113 static INT IPADDRESS_IPNotify (const IPADDRESS_INFO *infoPtr, INT field, INT value)
114 {
115 NMIPADDRESS nmip;
116
117 TRACE("(field=%x, value=%d)\n", field, value);
118
119 nmip.hdr.hwndFrom = infoPtr->Self;
120 nmip.hdr.idFrom = GetWindowLongPtrW (infoPtr->Self, GWLP_ID);
121 nmip.hdr.code = IPN_FIELDCHANGED;
122
123 nmip.iField = field;
124 nmip.iValue = value;
125
126 SendMessageW (infoPtr->Notify, WM_NOTIFY, nmip.hdr.idFrom, (LPARAM)&nmip);
127
128 TRACE("<-- %d\n", nmip.iValue);
129
130 return nmip.iValue;
131 }
132
133
134 static int IPADDRESS_GetPartIndex(const IPADDRESS_INFO *infoPtr, HWND hwnd)
135 {
136 int i;
137
138 TRACE("(hwnd=%p)\n", hwnd);
139
140 for (i = 0; i < 4; i++)
141 if (infoPtr->Part[i].EditHwnd == hwnd) return i;
142
143 ERR("We subclassed the wrong window! (hwnd=%p)\n", hwnd);
144 return -1;
145 }
146
147
148 static LRESULT IPADDRESS_Draw (const IPADDRESS_INFO *infoPtr, HDC hdc)
149 {
150 static const WCHAR dotW[] = { '.', 0 };
151 RECT rect, rcPart;
152 POINT pt;
153 COLORREF bgCol, fgCol;
154 int i;
155
156 TRACE("\n");
157
158 GetClientRect (infoPtr->Self, &rect);
159
160 if (infoPtr->Enabled) {
161 bgCol = comctl32_color.clrWindow;
162 fgCol = comctl32_color.clrWindowText;
163 } else {
164 bgCol = comctl32_color.clr3dFace;
165 fgCol = comctl32_color.clrGrayText;
166 }
167
168 FillRect (hdc, &rect, (HBRUSH)(DWORD_PTR)(bgCol+1));
169 DrawEdge (hdc, &rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
170
171 SetBkColor (hdc, bgCol);
172 SetTextColor(hdc, fgCol);
173
174 for (i = 0; i < 3; i++) {
175 GetWindowRect (infoPtr->Part[i].EditHwnd, &rcPart);
176 pt.x = rcPart.right;
177 ScreenToClient(infoPtr->Self, &pt);
178 rect.left = pt.x;
179 GetWindowRect (infoPtr->Part[i+1].EditHwnd, &rcPart);
180 pt.x = rcPart.left;
181 ScreenToClient(infoPtr->Self, &pt);
182 rect.right = pt.x;
183 DrawTextW(hdc, dotW, 1, &rect, DT_SINGLELINE | DT_CENTER | DT_BOTTOM);
184 }
185
186 return 0;
187 }
188
189
190 static LRESULT IPADDRESS_Create (HWND hwnd, const CREATESTRUCTA *lpCreate)
191 {
192 IPADDRESS_INFO *infoPtr;
193 RECT rcClient, edit;
194 int i, fieldsize;
195 HFONT hFont, hSysFont;
196 LOGFONTW logFont, logSysFont;
197
198 TRACE("\n");
199
200 SetWindowLongW (hwnd, GWL_STYLE,
201 GetWindowLongW(hwnd, GWL_STYLE) & ~WS_BORDER);
202
203 infoPtr = Alloc (sizeof(IPADDRESS_INFO));
204 if (!infoPtr) return -1;
205 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
206
207 GetClientRect (hwnd, &rcClient);
208
209 fieldsize = (rcClient.right - rcClient.left) / 4;
210
211 edit.top = rcClient.top + 2;
212 edit.bottom = rcClient.bottom - 2;
213
214 infoPtr->Self = hwnd;
215 infoPtr->Enabled = TRUE;
216 infoPtr->Notify = lpCreate->hwndParent;
217
218 hSysFont = GetStockObject(ANSI_VAR_FONT);
219 GetObjectW(hSysFont, sizeof(LOGFONTW), &logSysFont);
220 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, 0, &logFont, 0);
221 strcpyW(logFont.lfFaceName, logSysFont.lfFaceName);
222 hFont = CreateFontIndirectW(&logFont);
223
224 for (i = 0; i < 4; i++) {
225 IPPART_INFO* part = &infoPtr->Part[i];
226
227 part->LowerLimit = 0;
228 part->UpperLimit = 255;
229 edit.left = rcClient.left + i*fieldsize + 6;
230 edit.right = rcClient.left + (i+1)*fieldsize - 2;
231 part->EditHwnd =
232 CreateWindowW (WC_EDITW, NULL, WS_CHILD | WS_VISIBLE | ES_CENTER,
233 edit.left, edit.top, edit.right - edit.left,
234 edit.bottom - edit.top, hwnd, (HMENU) 1,
235 (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE), NULL);
236 SendMessageW(part->EditHwnd, WM_SETFONT, (WPARAM) hFont, FALSE);
237 SetPropW(part->EditHwnd, IP_SUBCLASS_PROP, hwnd);
238 part->OrigProc = (WNDPROC)
239 SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC,
240 (DWORD_PTR)IPADDRESS_SubclassProc);
241 EnableWindow(part->EditHwnd, infoPtr->Enabled);
242 }
243
244 IPADDRESS_UpdateText (infoPtr);
245
246 return 0;
247 }
248
249
250 static LRESULT IPADDRESS_Destroy (IPADDRESS_INFO *infoPtr)
251 {
252 int i;
253
254 TRACE("\n");
255
256 for (i = 0; i < 4; i++) {
257 IPPART_INFO* part = &infoPtr->Part[i];
258 SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC, (DWORD_PTR)part->OrigProc);
259 }
260
261 SetWindowLongPtrW (infoPtr->Self, 0, 0);
262 Free (infoPtr);
263 return 0;
264 }
265
266
267 static LRESULT IPADDRESS_Enable (IPADDRESS_INFO *infoPtr, BOOL enabled)
268 {
269 int i;
270
271 infoPtr->Enabled = enabled;
272
273 for (i = 0; i < 4; i++)
274 EnableWindow(infoPtr->Part[i].EditHwnd, enabled);
275
276 InvalidateRgn(infoPtr->Self, NULL, FALSE);
277 return 0;
278 }
279
280
281 static LRESULT IPADDRESS_Paint (const IPADDRESS_INFO *infoPtr, HDC hdc)
282 {
283 PAINTSTRUCT ps;
284
285 TRACE("\n");
286
287 if (hdc) return IPADDRESS_Draw (infoPtr, hdc);
288
289 hdc = BeginPaint (infoPtr->Self, &ps);
290 IPADDRESS_Draw (infoPtr, hdc);
291 EndPaint (infoPtr->Self, &ps);
292 return 0;
293 }
294
295
296 static BOOL IPADDRESS_IsBlank (const IPADDRESS_INFO *infoPtr)
297 {
298 int i;
299
300 TRACE("\n");
301
302 for (i = 0; i < 4; i++)
303 if (GetWindowTextLengthW (infoPtr->Part[i].EditHwnd)) return FALSE;
304
305 return TRUE;
306 }
307
308
309 static int IPADDRESS_GetAddress (const IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
310 {
311 WCHAR field[5];
312 int i, invalid = 0;
313 DWORD ip_addr = 0;
314
315 TRACE("\n");
316
317 for (i = 0; i < 4; i++) {
318 ip_addr *= 256;
319 if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
320 ip_addr += atolW(field);
321 else
322 invalid++;
323 }
324 *ip_address = ip_addr;
325
326 return 4 - invalid;
327 }
328
329
330 static BOOL IPADDRESS_SetRange (IPADDRESS_INFO *infoPtr, int index, WORD range)
331 {
332 TRACE("\n");
333
334 if ( (index < 0) || (index > 3) ) return FALSE;
335
336 infoPtr->Part[index].LowerLimit = range & 0xFF;
337 infoPtr->Part[index].UpperLimit = (range >> 8) & 0xFF;
338
339 return TRUE;
340 }
341
342
343 static void IPADDRESS_ClearAddress (const IPADDRESS_INFO *infoPtr)
344 {
345 WCHAR nil[1] = { 0 };
346 int i;
347
348 TRACE("\n");
349
350 for (i = 0; i < 4; i++)
351 SetWindowTextW (infoPtr->Part[i].EditHwnd, nil);
352 }
353
354
355 static LRESULT IPADDRESS_SetAddress (const IPADDRESS_INFO *infoPtr, DWORD ip_address)
356 {
357 WCHAR buf[20];
358 static const WCHAR fmt[] = { '%', 'd', 0 };
359 int i;
360
361 TRACE("\n");
362
363 for (i = 3; i >= 0; i--) {
364 const IPPART_INFO* part = &infoPtr->Part[i];
365 int value = ip_address & 0xff;
366 if ( (value >= part->LowerLimit) && (value <= part->UpperLimit) ) {
367 wsprintfW (buf, fmt, value);
368 SetWindowTextW (part->EditHwnd, buf);
369 IPADDRESS_Notify (infoPtr, EN_CHANGE);
370 }
371 ip_address >>= 8;
372 }
373
374 return TRUE;
375 }
376
377
378 static void IPADDRESS_SetFocusToField (const IPADDRESS_INFO *infoPtr, INT index)
379 {
380 TRACE("(index=%d)\n", index);
381
382 if (index > 3 || index < 0) index=0;
383
384 SetFocus (infoPtr->Part[index].EditHwnd);
385 }
386
387
388 static BOOL IPADDRESS_ConstrainField (const IPADDRESS_INFO *infoPtr, int currentfield)
389 {
390 const IPPART_INFO *part = &infoPtr->Part[currentfield];
391 WCHAR field[10];
392 static const WCHAR fmt[] = { '%', 'd', 0 };
393 int curValue, newValue;
394
395 TRACE("(currentfield=%d)\n", currentfield);
396
397 if (currentfield < 0 || currentfield > 3) return FALSE;
398
399 if (!GetWindowTextW (part->EditHwnd, field, 4)) return FALSE;
400
401 curValue = atoiW(field);
402 TRACE(" curValue=%d\n", curValue);
403
404 newValue = IPADDRESS_IPNotify(infoPtr, currentfield, curValue);
405 TRACE(" newValue=%d\n", newValue);
406
407 if (newValue < part->LowerLimit) newValue = part->LowerLimit;
408 if (newValue > part->UpperLimit) newValue = part->UpperLimit;
409
410 if (newValue == curValue) return FALSE;
411
412 wsprintfW (field, fmt, newValue);
413 TRACE(" field=%s\n", debugstr_w(field));
414 return SetWindowTextW (part->EditHwnd, field);
415 }
416
417
418 static BOOL IPADDRESS_GotoNextField (const IPADDRESS_INFO *infoPtr, int cur, int sel)
419 {
420 TRACE("\n");
421
422 if(cur >= -1 && cur < 4) {
423 IPADDRESS_ConstrainField(infoPtr, cur);
424
425 if(cur < 3) {
426 const IPPART_INFO *next = &infoPtr->Part[cur + 1];
427 int start = 0, end = 0;
428 SetFocus (next->EditHwnd);
429 if (sel != POS_DEFAULT) {
430 if (sel == POS_RIGHT)
431 start = end = GetWindowTextLengthW(next->EditHwnd);
432 else if (sel == POS_SELALL)
433 end = -1;
434 SendMessageW(next->EditHwnd, EM_SETSEL, start, end);
435 }
436 return TRUE;
437 }
438
439 }
440 return FALSE;
441 }
442
443
444 /*
445 * period: move and select the text in the next field to the right if
446 * the current field is not empty(l!=0), we are not in the
447 * left most position, and nothing is selected(startsel==endsel)
448 *
449 * spacebar: same behavior as period
450 *
451 * alpha characters: completely ignored
452 *
453 * digits: accepted when field text length < 2 ignored otherwise.
454 * when 3 numbers have been entered into the field the value
455 * of the field is checked, if the field value exceeds the
456 * maximum value and is changed the field remains the current
457 * field, otherwise focus moves to the field to the right
458 *
459 * tab: change focus from the current ipaddress control to the next
460 * control in the tab order
461 *
462 * right arrow: move to the field on the right to the left most
463 * position in that field if no text is selected,
464 * we are in the right most position in the field,
465 * we are not in the right most field
466 *
467 * left arrow: move to the field on the left to the right most
468 * position in that field if no text is selected,
469 * we are in the left most position in the current field
470 * and we are not in the left most field
471 *
472 * backspace: delete the character to the left of the cursor position,
473 * if none are present move to the field on the left if
474 * we are not in the left most field and delete the right
475 * most digit in that field while keeping the cursor
476 * on the right side of the field
477 */
478 LRESULT CALLBACK
479 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
480 {
481 HWND Self = GetPropW (hwnd, IP_SUBCLASS_PROP);
482 IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (Self, 0);
483 CHAR c = (CHAR)wParam;
484 INT index, len = 0, startsel, endsel;
485 IPPART_INFO *part;
486
487 TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
488
489 if ( (index = IPADDRESS_GetPartIndex(infoPtr, hwnd)) < 0) return 0;
490 part = &infoPtr->Part[index];
491
492 if (uMsg == WM_CHAR || uMsg == WM_KEYDOWN) {
493 len = GetWindowTextLengthW (hwnd);
494 SendMessageW(hwnd, EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
495 }
496 switch (uMsg) {
497 case WM_CHAR:
498 if(isdigit(c)) {
499 if(len == 2 && startsel==endsel && endsel==len) {
500 /* process the digit press before we check the field */
501 int return_val = CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
502
503 /* if the field value was changed stay at the current field */
504 if(!IPADDRESS_ConstrainField(infoPtr, index))
505 IPADDRESS_GotoNextField (infoPtr, index, POS_DEFAULT);
506
507 return return_val;
508 } else if (len == 3 && startsel==endsel && endsel==len)
509 IPADDRESS_GotoNextField (infoPtr, index, POS_SELALL);
510 else if (len < 3 || startsel != endsel) break;
511 } else if(c == '.' || c == ' ') {
512 if(len && startsel==endsel && startsel != 0) {
513 IPADDRESS_GotoNextField(infoPtr, index, POS_SELALL);
514 }
515 } else if (c == VK_BACK) break;
516 return 0;
517
518 case WM_KEYDOWN:
519 switch(c) {
520 case VK_RIGHT:
521 if(startsel==endsel && startsel==len) {
522 IPADDRESS_GotoNextField(infoPtr, index, POS_LEFT);
523 return 0;
524 }
525 break;
526 case VK_LEFT:
527 if(startsel==0 && startsel==endsel && index > 0) {
528 IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
529 return 0;
530 }
531 break;
532 case VK_BACK:
533 if(startsel==endsel && startsel==0 && index > 0) {
534 IPPART_INFO *prev = &infoPtr->Part[index-1];
535 WCHAR val[10];
536
537 if(GetWindowTextW(prev->EditHwnd, val, 5)) {
538 val[lstrlenW(val) - 1] = 0;
539 SetWindowTextW(prev->EditHwnd, val);
540 }
541
542 IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
543 return 0;
544 }
545 break;
546 }
547 break;
548 case WM_KILLFOCUS:
549 if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
550 IPADDRESS_Notify(infoPtr, EN_KILLFOCUS);
551 break;
552 case WM_SETFOCUS:
553 if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
554 IPADDRESS_Notify(infoPtr, EN_SETFOCUS);
555 break;
556 }
557 return CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
558 }
559
560
561 static LRESULT WINAPI
562 IPADDRESS_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
563 {
564 IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (hwnd, 0);
565
566 TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
567
568 if (!infoPtr && (uMsg != WM_CREATE))
569 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
570
571 switch (uMsg)
572 {
573 case WM_CREATE:
574 return IPADDRESS_Create (hwnd, (LPCREATESTRUCTA)lParam);
575
576 case WM_DESTROY:
577 return IPADDRESS_Destroy (infoPtr);
578
579 case WM_ENABLE:
580 return IPADDRESS_Enable (infoPtr, (BOOL)wParam);
581
582 case WM_PAINT:
583 return IPADDRESS_Paint (infoPtr, (HDC)wParam);
584
585 case WM_COMMAND:
586 switch(wParam >> 16) {
587 case EN_CHANGE:
588 IPADDRESS_UpdateText(infoPtr);
589 IPADDRESS_Notify(infoPtr, EN_CHANGE);
590 break;
591 case EN_KILLFOCUS:
592 IPADDRESS_ConstrainField(infoPtr, IPADDRESS_GetPartIndex(infoPtr, (HWND)lParam));
593 break;
594 }
595 break;
596
597 case WM_SYSCOLORCHANGE:
598 COMCTL32_RefreshSysColors();
599 return 0;
600
601 case IPM_CLEARADDRESS:
602 IPADDRESS_ClearAddress (infoPtr);
603 break;
604
605 case IPM_SETADDRESS:
606 return IPADDRESS_SetAddress (infoPtr, (DWORD)lParam);
607
608 case IPM_GETADDRESS:
609 return IPADDRESS_GetAddress (infoPtr, (LPDWORD)lParam);
610
611 case IPM_SETRANGE:
612 return IPADDRESS_SetRange (infoPtr, (int)wParam, (WORD)lParam);
613
614 case IPM_SETFOCUS:
615 IPADDRESS_SetFocusToField (infoPtr, (int)wParam);
616 break;
617
618 case IPM_ISBLANK:
619 return IPADDRESS_IsBlank (infoPtr);
620
621 default:
622 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
623 ERR("unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
624 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
625 }
626 return 0;
627 }
628
629
630 void IPADDRESS_Register (void)
631 {
632 WNDCLASSW wndClass;
633
634 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
635 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
636 wndClass.lpfnWndProc = IPADDRESS_WindowProc;
637 wndClass.cbClsExtra = 0;
638 wndClass.cbWndExtra = sizeof(IPADDRESS_INFO *);
639 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_IBEAM);
640 wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
641 wndClass.lpszClassName = WC_IPADDRESSW;
642
643 RegisterClassW (&wndClass);
644 }
645
646
647 void IPADDRESS_Unregister (void)
648 {
649 UnregisterClassW (WC_IPADDRESSW, NULL);
650 }
651
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