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 LRESULT IPADDRESS_Notify (const IPADDRESS_INFO *infoPtr, UINT command)
81 {
82 HWND hwnd = infoPtr->Self;
83
84 TRACE("(command=%x)\n", command);
85
86 return SendMessageW (infoPtr->Notify, WM_COMMAND,
87 MAKEWPARAM (GetWindowLongPtrW (hwnd, GWLP_ID), command), (LPARAM)hwnd);
88 }
89
90 static INT IPADDRESS_IPNotify (const IPADDRESS_INFO *infoPtr, INT field, INT value)
91 {
92 NMIPADDRESS nmip;
93
94 TRACE("(field=%x, value=%d)\n", field, value);
95
96 nmip.hdr.hwndFrom = infoPtr->Self;
97 nmip.hdr.idFrom = GetWindowLongPtrW (infoPtr->Self, GWLP_ID);
98 nmip.hdr.code = IPN_FIELDCHANGED;
99
100 nmip.iField = field;
101 nmip.iValue = value;
102
103 SendMessageW (infoPtr->Notify, WM_NOTIFY, nmip.hdr.idFrom, (LPARAM)&nmip);
104
105 TRACE("<-- %d\n", nmip.iValue);
106
107 return nmip.iValue;
108 }
109
110
111 static int IPADDRESS_GetPartIndex(const IPADDRESS_INFO *infoPtr, HWND hwnd)
112 {
113 int i;
114
115 TRACE("(hwnd=%p)\n", hwnd);
116
117 for (i = 0; i < 4; i++)
118 if (infoPtr->Part[i].EditHwnd == hwnd) return i;
119
120 ERR("We subclassed the wrong window! (hwnd=%p)\n", hwnd);
121 return -1;
122 }
123
124
125 static LRESULT IPADDRESS_Draw (const IPADDRESS_INFO *infoPtr, HDC hdc)
126 {
127 static const WCHAR dotW[] = { '.', 0 };
128 RECT rect, rcPart;
129 POINT pt;
130 COLORREF bgCol, fgCol;
131 int i;
132
133 TRACE("\n");
134
135 GetClientRect (infoPtr->Self, &rect);
136
137 if (infoPtr->Enabled) {
138 bgCol = COLOR_WINDOW;
139 fgCol = COLOR_WINDOWTEXT;
140 } else {
141 bgCol = COLOR_3DFACE;
142 fgCol = COLOR_GRAYTEXT;
143 }
144
145 FillRect (hdc, &rect, (HBRUSH)(DWORD_PTR)(bgCol+1));
146 DrawEdge (hdc, &rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
147
148 SetBkColor (hdc, GetSysColor(bgCol));
149 SetTextColor(hdc, GetSysColor(fgCol));
150
151 for (i = 0; i < 3; i++) {
152 GetWindowRect (infoPtr->Part[i].EditHwnd, &rcPart);
153 pt.x = rcPart.right;
154 ScreenToClient(infoPtr->Self, &pt);
155 rect.left = pt.x;
156 GetWindowRect (infoPtr->Part[i+1].EditHwnd, &rcPart);
157 pt.x = rcPart.left;
158 ScreenToClient(infoPtr->Self, &pt);
159 rect.right = pt.x;
160 DrawTextW(hdc, dotW, 1, &rect, DT_SINGLELINE | DT_CENTER | DT_BOTTOM);
161 }
162
163 return 0;
164 }
165
166
167 static LRESULT IPADDRESS_Create (HWND hwnd, const CREATESTRUCTA *lpCreate)
168 {
169 static const WCHAR EDIT[] = { 'E', 'd', 'i', 't', 0 };
170 IPADDRESS_INFO *infoPtr;
171 RECT rcClient, edit;
172 int i, fieldsize;
173 HFONT hFont, hSysFont;
174 LOGFONTW logFont, logSysFont;
175
176 TRACE("\n");
177
178 SetWindowLongW (hwnd, GWL_STYLE,
179 GetWindowLongW(hwnd, GWL_STYLE) & ~WS_BORDER);
180
181 infoPtr = Alloc (sizeof(IPADDRESS_INFO));
182 if (!infoPtr) return -1;
183 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
184
185 GetClientRect (hwnd, &rcClient);
186
187 fieldsize = (rcClient.right - rcClient.left) / 4;
188
189 edit.top = rcClient.top + 2;
190 edit.bottom = rcClient.bottom - 2;
191
192 infoPtr->Self = hwnd;
193 infoPtr->Enabled = TRUE;
194 infoPtr->Notify = lpCreate->hwndParent;
195
196 hSysFont = GetStockObject(ANSI_VAR_FONT);
197 GetObjectW(hSysFont, sizeof(LOGFONTW), &logSysFont);
198 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, 0, &logFont, 0);
199 strcpyW(logFont.lfFaceName, logSysFont.lfFaceName);
200 hFont = CreateFontIndirectW(&logFont);
201
202 for (i = 0; i < 4; i++) {
203 IPPART_INFO* part = &infoPtr->Part[i];
204
205 part->LowerLimit = 0;
206 part->UpperLimit = 255;
207 edit.left = rcClient.left + i*fieldsize + 6;
208 edit.right = rcClient.left + (i+1)*fieldsize - 2;
209 part->EditHwnd =
210 CreateWindowW (EDIT, NULL, WS_CHILD | WS_VISIBLE | ES_CENTER,
211 edit.left, edit.top, edit.right - edit.left,
212 edit.bottom - edit.top, hwnd, (HMENU) 1,
213 (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE), NULL);
214 SendMessageW(part->EditHwnd, WM_SETFONT, (WPARAM) hFont, FALSE);
215 SetPropW(part->EditHwnd, IP_SUBCLASS_PROP, hwnd);
216 part->OrigProc = (WNDPROC)
217 SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC,
218 (DWORD_PTR)IPADDRESS_SubclassProc);
219 EnableWindow(part->EditHwnd, infoPtr->Enabled);
220 }
221
222 return 0;
223 }
224
225
226 static LRESULT IPADDRESS_Destroy (IPADDRESS_INFO *infoPtr)
227 {
228 int i;
229
230 TRACE("\n");
231
232 for (i = 0; i < 4; i++) {
233 IPPART_INFO* part = &infoPtr->Part[i];
234 SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC, (DWORD_PTR)part->OrigProc);
235 }
236
237 SetWindowLongPtrW (infoPtr->Self, 0, 0);
238 Free (infoPtr);
239 return 0;
240 }
241
242
243 static LRESULT IPADDRESS_Enable (IPADDRESS_INFO *infoPtr, BOOL enabled)
244 {
245 int i;
246
247 infoPtr->Enabled = enabled;
248
249 for (i = 0; i < 4; i++)
250 EnableWindow(infoPtr->Part[i].EditHwnd, enabled);
251
252 InvalidateRgn(infoPtr->Self, NULL, FALSE);
253 return 0;
254 }
255
256
257 static LRESULT IPADDRESS_Paint (const IPADDRESS_INFO *infoPtr, HDC hdc)
258 {
259 PAINTSTRUCT ps;
260
261 TRACE("\n");
262
263 if (hdc) return IPADDRESS_Draw (infoPtr, hdc);
264
265 hdc = BeginPaint (infoPtr->Self, &ps);
266 IPADDRESS_Draw (infoPtr, hdc);
267 EndPaint (infoPtr->Self, &ps);
268 return 0;
269 }
270
271
272 static BOOL IPADDRESS_IsBlank (const IPADDRESS_INFO *infoPtr)
273 {
274 int i;
275
276 TRACE("\n");
277
278 for (i = 0; i < 4; i++)
279 if (GetWindowTextLengthW (infoPtr->Part[i].EditHwnd)) return FALSE;
280
281 return TRUE;
282 }
283
284
285 static int IPADDRESS_GetAddress (const IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
286 {
287 WCHAR field[5];
288 int i, invalid = 0;
289 DWORD ip_addr = 0;
290
291 TRACE("\n");
292
293 for (i = 0; i < 4; i++) {
294 ip_addr *= 256;
295 if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
296 ip_addr += atolW(field);
297 else
298 invalid++;
299 }
300 *ip_address = ip_addr;
301
302 return 4 - invalid;
303 }
304
305
306 static BOOL IPADDRESS_SetRange (IPADDRESS_INFO *infoPtr, int index, WORD range)
307 {
308 TRACE("\n");
309
310 if ( (index < 0) || (index > 3) ) return FALSE;
311
312 infoPtr->Part[index].LowerLimit = range & 0xFF;
313 infoPtr->Part[index].UpperLimit = (range >> 8) & 0xFF;
314
315 return TRUE;
316 }
317
318
319 static void IPADDRESS_ClearAddress (const IPADDRESS_INFO *infoPtr)
320 {
321 WCHAR nil[1] = { 0 };
322 int i;
323
324 TRACE("\n");
325
326 for (i = 0; i < 4; i++)
327 SetWindowTextW (infoPtr->Part[i].EditHwnd, nil);
328 }
329
330
331 static LRESULT IPADDRESS_SetAddress (const IPADDRESS_INFO *infoPtr, DWORD ip_address)
332 {
333 WCHAR buf[20];
334 static const WCHAR fmt[] = { '%', 'd', 0 };
335 int i;
336
337 TRACE("\n");
338
339 for (i = 3; i >= 0; i--) {
340 const IPPART_INFO* part = &infoPtr->Part[i];
341 int value = ip_address & 0xff;
342 if ( (value >= part->LowerLimit) && (value <= part->UpperLimit) ) {
343 wsprintfW (buf, fmt, value);
344 SetWindowTextW (part->EditHwnd, buf);
345 IPADDRESS_Notify (infoPtr, EN_CHANGE);
346 }
347 ip_address >>= 8;
348 }
349
350 return TRUE;
351 }
352
353
354 static void IPADDRESS_SetFocusToField (const IPADDRESS_INFO *infoPtr, INT index)
355 {
356 TRACE("(index=%d)\n", index);
357
358 if (index > 3 || index < 0) index=0;
359
360 SetFocus (infoPtr->Part[index].EditHwnd);
361 }
362
363
364 static BOOL IPADDRESS_ConstrainField (const IPADDRESS_INFO *infoPtr, int currentfield)
365 {
366 const IPPART_INFO *part = &infoPtr->Part[currentfield];
367 WCHAR field[10];
368 static const WCHAR fmt[] = { '%', 'd', 0 };
369 int curValue, newValue;
370
371 TRACE("(currentfield=%d)\n", currentfield);
372
373 if (currentfield < 0 || currentfield > 3) return FALSE;
374
375 if (!GetWindowTextW (part->EditHwnd, field, 4)) return FALSE;
376
377 curValue = atoiW(field);
378 TRACE(" curValue=%d\n", curValue);
379
380 newValue = IPADDRESS_IPNotify(infoPtr, currentfield, curValue);
381 TRACE(" newValue=%d\n", newValue);
382
383 if (newValue < part->LowerLimit) newValue = part->LowerLimit;
384 if (newValue > part->UpperLimit) newValue = part->UpperLimit;
385
386 if (newValue == curValue) return FALSE;
387
388 wsprintfW (field, fmt, newValue);
389 TRACE(" field=%s\n", debugstr_w(field));
390 return SetWindowTextW (part->EditHwnd, field);
391 }
392
393
394 static BOOL IPADDRESS_GotoNextField (const IPADDRESS_INFO *infoPtr, int cur, int sel)
395 {
396 TRACE("\n");
397
398 if(cur >= -1 && cur < 4) {
399 IPADDRESS_ConstrainField(infoPtr, cur);
400
401 if(cur < 3) {
402 const IPPART_INFO *next = &infoPtr->Part[cur + 1];
403 int start = 0, end = 0;
404 SetFocus (next->EditHwnd);
405 if (sel != POS_DEFAULT) {
406 if (sel == POS_RIGHT)
407 start = end = GetWindowTextLengthW(next->EditHwnd);
408 else if (sel == POS_SELALL)
409 end = -1;
410 SendMessageW(next->EditHwnd, EM_SETSEL, start, end);
411 }
412 return TRUE;
413 }
414
415 }
416 return FALSE;
417 }
418
419
420 /*
421 * period: move and select the text in the next field to the right if
422 * the current field is not empty(l!=0), we are not in the
423 * left most position, and nothing is selected(startsel==endsel)
424 *
425 * spacebar: same behavior as period
426 *
427 * alpha characters: completely ignored
428 *
429 * digits: accepted when field text length < 2 ignored otherwise.
430 * when 3 numbers have been entered into the field the value
431 * of the field is checked, if the field value exceeds the
432 * maximum value and is changed the field remains the current
433 * field, otherwise focus moves to the field to the right
434 *
435 * tab: change focus from the current ipaddress control to the next
436 * control in the tab order
437 *
438 * right arrow: move to the field on the right to the left most
439 * position in that field if no text is selected,
440 * we are in the right most position in the field,
441 * we are not in the right most field
442 *
443 * left arrow: move to the field on the left to the right most
444 * position in that field if no text is selected,
445 * we are in the left most position in the current field
446 * and we are not in the left most field
447 *
448 * backspace: delete the character to the left of the cursor position,
449 * if none are present move to the field on the left if
450 * we are not in the left most field and delete the right
451 * most digit in that field while keeping the cursor
452 * on the right side of the field
453 */
454 LRESULT CALLBACK
455 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
456 {
457 HWND Self = GetPropW (hwnd, IP_SUBCLASS_PROP);
458 IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (Self, 0);
459 CHAR c = (CHAR)wParam;
460 INT index, len = 0, startsel, endsel;
461 IPPART_INFO *part;
462
463 TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
464
465 if ( (index = IPADDRESS_GetPartIndex(infoPtr, hwnd)) < 0) return 0;
466 part = &infoPtr->Part[index];
467
468 if (uMsg == WM_CHAR || uMsg == WM_KEYDOWN) {
469 len = GetWindowTextLengthW (hwnd);
470 SendMessageW(hwnd, EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
471 }
472 switch (uMsg) {
473 case WM_CHAR:
474 if(isdigit(c)) {
475 if(len == 2 && startsel==endsel && endsel==len) {
476 /* process the digit press before we check the field */
477 int return_val = CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
478
479 /* if the field value was changed stay at the current field */
480 if(!IPADDRESS_ConstrainField(infoPtr, index))
481 IPADDRESS_GotoNextField (infoPtr, index, POS_DEFAULT);
482
483 return return_val;
484 } else if (len == 3 && startsel==endsel && endsel==len)
485 IPADDRESS_GotoNextField (infoPtr, index, POS_SELALL);
486 else if (len < 3) break;
487 } else if(c == '.' || c == ' ') {
488 if(len && startsel==endsel && startsel != 0) {
489 IPADDRESS_GotoNextField(infoPtr, index, POS_SELALL);
490 }
491 } else if (c == VK_BACK) break;
492 return 0;
493
494 case WM_KEYDOWN:
495 switch(c) {
496 case VK_RIGHT:
497 if(startsel==endsel && startsel==len) {
498 IPADDRESS_GotoNextField(infoPtr, index, POS_LEFT);
499 return 0;
500 }
501 break;
502 case VK_LEFT:
503 if(startsel==0 && startsel==endsel && index > 0) {
504 IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
505 return 0;
506 }
507 break;
508 case VK_BACK:
509 if(startsel==endsel && startsel==0 && index > 0) {
510 IPPART_INFO *prev = &infoPtr->Part[index-1];
511 WCHAR val[10];
512
513 if(GetWindowTextW(prev->EditHwnd, val, 5)) {
514 val[lstrlenW(val) - 1] = 0;
515 SetWindowTextW(prev->EditHwnd, val);
516 }
517
518 IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
519 return 0;
520 }
521 break;
522 }
523 break;
524 case WM_KILLFOCUS:
525 if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
526 IPADDRESS_Notify(infoPtr, EN_KILLFOCUS);
527 break;
528 case WM_SETFOCUS:
529 if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
530 IPADDRESS_Notify(infoPtr, EN_SETFOCUS);
531 break;
532 }
533 return CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
534 }
535
536
537 static LRESULT WINAPI
538 IPADDRESS_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
539 {
540 IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (hwnd, 0);
541
542 TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
543
544 if (!infoPtr && (uMsg != WM_CREATE))
545 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
546
547 switch (uMsg)
548 {
549 case WM_CREATE:
550 return IPADDRESS_Create (hwnd, (LPCREATESTRUCTA)lParam);
551
552 case WM_DESTROY:
553 return IPADDRESS_Destroy (infoPtr);
554
555 case WM_ENABLE:
556 return IPADDRESS_Enable (infoPtr, (BOOL)wParam);
557
558 case WM_PAINT:
559 return IPADDRESS_Paint (infoPtr, (HDC)wParam);
560
561 case WM_COMMAND:
562 switch(wParam >> 16) {
563 case EN_CHANGE:
564 IPADDRESS_Notify(infoPtr, EN_CHANGE);
565 break;
566 case EN_KILLFOCUS:
567 IPADDRESS_ConstrainField(infoPtr, IPADDRESS_GetPartIndex(infoPtr, (HWND)lParam));
568 break;
569 }
570 break;
571
572 case IPM_CLEARADDRESS:
573 IPADDRESS_ClearAddress (infoPtr);
574 break;
575
576 case IPM_SETADDRESS:
577 return IPADDRESS_SetAddress (infoPtr, (DWORD)lParam);
578
579 case IPM_GETADDRESS:
580 return IPADDRESS_GetAddress (infoPtr, (LPDWORD)lParam);
581
582 case IPM_SETRANGE:
583 return IPADDRESS_SetRange (infoPtr, (int)wParam, (WORD)lParam);
584
585 case IPM_SETFOCUS:
586 IPADDRESS_SetFocusToField (infoPtr, (int)wParam);
587 break;
588
589 case IPM_ISBLANK:
590 return IPADDRESS_IsBlank (infoPtr);
591
592 default:
593 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
594 ERR("unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
595 return DefWindowProcW (hwnd, uMsg, wParam, lParam);
596 }
597 return 0;
598 }
599
600
601 void IPADDRESS_Register (void)
602 {
603 WNDCLASSW wndClass;
604
605 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
606 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
607 wndClass.lpfnWndProc = IPADDRESS_WindowProc;
608 wndClass.cbClsExtra = 0;
609 wndClass.cbWndExtra = sizeof(IPADDRESS_INFO *);
610 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_IBEAM);
611 wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
612 wndClass.lpszClassName = WC_IPADDRESSW;
613
614 RegisterClassW (&wndClass);
615 }
616
617
618 void IPADDRESS_Unregister (void)
619 {
620 UnregisterClassW (WC_IPADDRESSW, NULL);
621 }
622
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