1 /*
2 * Copyright (c) 1996, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "awt_List.h"
27 #include "awt_Canvas.h"
28 #include "awt_Dimension.h"
29 #include "awt_Toolkit.h"
30 #include "awt_Window.h"
31
32 #include "ComCtl32Util.h"
33
34 /* IMPORTANT! Read the README.JNI file for notes on JNI converted AWT code.
35 */
36
37 /***********************************************************************/
38 // struct for _AddItems() method
39 struct AddItemsStruct {
40 jobject list;
41 jobjectArray items;
42 jint index;
43 jint width;
44 };
45 // struct for _DelItems() method
46 struct DelItemsStruct {
47 jobject list;
48 jint start, end;
49 };
50 // struct for _IsSelected(), _Select(), _Deselect() and _MakeVisible() methods
51 struct SelectElementStruct {
52 jobject list;
53 jint index;
54 };
55 // struct for _SetMultipleSelections() method
56 struct SetMultipleSelectionsStruct {
57 jobject list;
58 jboolean on;
59 };
60 /************************************************************************
61 * AwtList methods
62 */
63
64 AwtList::AwtList() {
65 isMultiSelect = FALSE;
66 isWrapperPrint = FALSE;
67 }
68
69 AwtList::~AwtList()
70 {
71 }
72
73 LPCTSTR AwtList::GetClassName() {
74 return TEXT("LISTBOX");
75 }
76
77 /* Create a new AwtList object and window. */
78 AwtList* AwtList::Create(jobject peer, jobject parent)
79 {
80 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
81
82 jobject target = NULL;
83 AwtList* c = NULL;
84
85 try {
86 if (env->EnsureLocalCapacity(1) < 0) {
87 return NULL;
88 }
89
90 PDATA pData;
91 AwtCanvas* awtParent;
92
93 JNI_CHECK_PEER_GOTO(parent, done);
94 awtParent = (AwtCanvas*)pData;
95
96 /* target is Hjava_awt_List * */
97 target = env->GetObjectField(peer, AwtObject::targetID);
98 JNI_CHECK_NULL_GOTO(target, "null target", done);
99
100 c = new AwtList();
101
102 {
103
104 /*
105 * NOTE: WS_CLIPCHILDREN is excluded so that repaint requests
106 * from Java will pass through the wrap to the native listbox.
107 */
108 DWORD wrapStyle = WS_CHILD | WS_CLIPSIBLINGS;
109 DWORD wrapExStyle = 0;
110
111 DWORD style = WS_CHILD | WS_CLIPSIBLINGS | WS_VSCROLL | WS_HSCROLL |
112 LBS_NOINTEGRALHEIGHT | LBS_NOTIFY | LBS_OWNERDRAWFIXED;
113 DWORD exStyle = WS_EX_CLIENTEDGE;
114
115 /*
116 * NOTE: WS_VISIBLE is always set for the listbox. Listbox
117 * visibility is controlled by toggling the wrap's WS_VISIBLE bit.
118 */
119 style |= WS_VISIBLE;
120
121 if (GetRTL()) {
122 exStyle |= WS_EX_RIGHT | WS_EX_LEFTSCROLLBAR;
123 if (GetRTLReadingOrder())
124 exStyle |= WS_EX_RTLREADING;
125 }
126
127 jint x = env->GetIntField(target, AwtComponent::xID);
128 jint y = env->GetIntField(target, AwtComponent::yID);
129 jint width = env->GetIntField(target, AwtComponent::widthID);
130 jint height = env->GetIntField(target, AwtComponent::heightID);
131
132 c->CreateHWnd(env, L"", style, exStyle,
133 x, y, width, height,
134 awtParent->GetHWnd(),
135 NULL,
136 ::GetSysColor(COLOR_WINDOWTEXT),
137 ::GetSysColor(COLOR_WINDOW),
138 peer
139 );
140
141 /* suppress inheriting awtParent's color. */
142 c->m_backgroundColorSet = TRUE;
143 c->UpdateBackground(env, target);
144 }
145 } catch (...) {
146 env->DeleteLocalRef(target);
147 throw;
148 }
149
150 done:
151 env->DeleteLocalRef(target);
152 return c;
153 }
154
155 void AwtList::SetDragCapture(UINT flags)
156 {
157 // don't want to interfere with other controls
158 if (::GetCapture() == NULL) {
159 ::SetCapture(GetListHandle());
160 }
161 }
162
163 void AwtList::ReleaseDragCapture(UINT flags)
164 {
165 if ((::GetCapture() == GetListHandle()) && ((flags & ALL_MK_BUTTONS) == 0)) {
166 ::ReleaseCapture();
167 }
168 }
169
170 void AwtList::Reshape(int x, int y, int w, int h)
171 {
172 AwtComponent::Reshape(x, y, w, h);
173
174 /*
175 HWND hList = GetListHandle();
176 if (hList != NULL) {
177 long flags = SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOCOPYBITS;
178 /*
179 * Fix for bug 4046446.
180 * /
181 SetWindowPos(hList, 0, 0, 0, w, h, flags);
182 }
183 */
184 }
185
186 //Netscape : Override the AwtComponent method so we can set the item height
187 //for each item in the list. Modified by echawkes to avoid race condition.
188
189 void AwtList::SetFont(AwtFont* font)
190 {
191 DASSERT(font != NULL);
192 if (font->GetAscent() < 0)
193 {
194 AwtFont::SetupAscent(font);
195 }
196 HANDLE hFont = font->GetHFont();
197 SendListMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(FALSE, 0));
198
199 HDC hDC = ::GetDC(GetHWnd());
200
201 TEXTMETRIC tm;
202 VERIFY(::SelectObject(hDC, hFont) != NULL);
203 VERIFY(::GetTextMetrics(hDC, &tm));
204
205 ::ReleaseDC(GetHWnd(), hDC);
206
207 long h = tm.tmHeight + tm.tmExternalLeading;
208 // Listbox is LBS_OWNERDRAWFIXED so the items have the same height
209 VERIFY(SendListMessage(LB_SETITEMHEIGHT, 0, MAKELPARAM(h, 0)) != LB_ERR);
210 VERIFY(::RedrawWindow(GetHWnd(), NULL, NULL, RDW_INVALIDATE |RDW_FRAME |RDW_ERASE));
211 }
212
213 void AwtList::SetMultiSelect(BOOL ms) {
214 if (ms == isMultiSelect) {
215 return;
216 }
217
218 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
219
220 /* Copy current box's contents to string array */
221 const int nCount = GetCount();
222 LPTSTR * strings = new LPTSTR[nCount];
223 int i;
224
225 for(i = 0; i < nCount; i++) {
226 LRESULT len = SendListMessage(LB_GETTEXTLEN, i);
227 LPTSTR text = NULL;
228 try {
229 text = new TCHAR[len + 1];
230 } catch (std::bad_alloc&) {
231 // free char * already allocated
232 for (int j = 0; j < i; j++) {
233 delete [] strings[j];
234 }
235 delete [] strings;
236 throw;
237 }
238
239 VERIFY(SendListMessage(LB_GETTEXT, i, (LPARAM)text) != LB_ERR);
240 strings[i] = text;
241 }
242
243 // index for selected item after multi-select mode change
244 int toSelect = SendListMessage(LB_GETCURSEL);
245 if (!isMultiSelect)
246 {
247 // MSDN: for single-select lists LB_GETCURSEL returns
248 // index of selected item or LB_ERR if no item is selected
249 if (toSelect == LB_ERR)
250 {
251 toSelect = -1;
252 }
253 }
254 else
255 {
256 // MSDN: for multi-select lists LB_GETCURSEL returns index
257 // of the focused item or 0 if no items are selected; if
258 // some item has focus and is not selected then LB_GETCURSEL
259 // return its index, so we need IsItemSelected too
260 if ((toSelect == LB_ERR) ||
261 (SendListMessage(LB_GETSELCOUNT) == 0) ||
262 (IsItemSelected(toSelect) == 0))
263 {
264 toSelect = -1;
265 }
266 }
267
268 isMultiSelect = ms;
269
270 HWND parentHWnd = GetParent()->GetHWnd();
271
272 /* Save old list box's attributes */
273 RECT rect;
274 GetWindowRect(GetListHandle(), &rect);
275 MapWindowPoints(0, parentHWnd, (LPPOINT)&rect, 2);
276
277 HANDLE font = (HANDLE)SendListMessage(WM_GETFONT);
278 LRESULT itemHeight = SendListMessage(LB_GETITEMHEIGHT, 0);
279 DWORD style = ::GetWindowLong(GetListHandle(), GWL_STYLE) | WS_VSCROLL | WS_HSCROLL;
280 if (isMultiSelect) {
281 style |= LBS_MULTIPLESEL;
282 } else {
283 style &= ~LBS_MULTIPLESEL;
284 }
285 DWORD exStyle = ::GetWindowLong(GetListHandle(), GWL_EXSTYLE);
286
287 jobject peer = GetPeer(env);
288
289 UnsubclassHWND();
290 AwtToolkit::DestroyComponentHWND(m_hwnd);
291 CreateHWnd(env, L"", style, exStyle,
292 rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
293 parentHWnd,
294 NULL,
295 ::GetSysColor(COLOR_WINDOWTEXT),
296 ::GetSysColor(COLOR_WINDOW),
297 peer);
298
299 SendListMessage(WM_SETFONT, (WPARAM)font, (LPARAM)FALSE);
300 SendListMessage(LB_SETITEMHEIGHT, 0, MAKELPARAM(itemHeight, 0));
301 SendListMessage(LB_RESETCONTENT);
302 for (i = 0; i < nCount; i++) {
303 InsertString(i, strings[i]);
304 delete [] strings[i];
305 }
306 delete[] strings;
307 if (toSelect != -1) {
308 Select(toSelect);
309 }
310
311 AdjustHorizontalScrollbar();
312 }
313
314 /*
315 * There currently is no good place to cache java.awt.Dimension field
316 * ids. If this method gets called a lot, one such place should be found.
317 * -- br 07/18/97.
318 */
319 jobject AwtList::PreferredItemSize(JNIEnv *env)
320 {
321 jobject peer = GetPeer(env);
322 jobject dimension = JNU_CallMethodByName(env, NULL, peer, "preferredSize",
323 "(I)Ljava/awt/Dimension;",
324 1).l;
325
326 DASSERT(!safe_ExceptionOccurred(env));
327 if (dimension == NULL) {
328 return NULL;
329 }
330 /* This size is too big for each item height. */
331 (env)->SetIntField(dimension, AwtDimension::heightID, GetFontHeight(env));
332
333 return dimension;
334 }
335
336 // Every time something gets added to the list, we increase the max width
337 // of items that have ever been added. If it surpasses the width of the
338 // listbox, we show the scrollbar. When things get deleted, we shrink
339 // the scroll region back down and hide the scrollbar, if needed.
340 void AwtList::AdjustHorizontalScrollbar()
341 {
342 // The border width is added to the horizontal extent to ensure that we
343 // can view all of the text when we move the horz. scrollbar to the end.
344 int cxBorders = GetSystemMetrics( SM_CXBORDER ) * 2;
345 RECT rect;
346 VERIFY(::GetClientRect(GetListHandle(), &rect));
347 LRESULT iHorzExt = SendListMessage(LB_GETHORIZONTALEXTENT, 0, 0L ) - cxBorders;
348 if ( (m_nMaxWidth > rect.left) // if strings wider than listbox
349 || (iHorzExt != m_nMaxWidth) ) // or scrollbar not needed anymore.
350 {
351 SendListMessage(LB_SETHORIZONTALEXTENT, m_nMaxWidth + cxBorders, 0L);
352 }
353 }
354
355 // This function goes through all strings in the list to find the width,
356 // in pixels, of the longest string in the list.
357 void AwtList::UpdateMaxItemWidth()
358 {
359 m_nMaxWidth = 0;
360
361 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
362 if (env->EnsureLocalCapacity(2) < 0)
363 return;
364
365 HDC hDC = ::GetDC(GetHWnd());
366
367 jobject self = GetPeer(env);
368 DASSERT(self);
369
370 /* target is java.awt.List */
371 jobject target = env->GetObjectField(self, AwtObject::targetID);
372 jobject font = GET_FONT(target, self);
373
374 int nCount = GetCount();
375 for ( int i=0; i < nCount; i++ )
376 {
377 jstring jstr = GetItemString( env, target, i );
378 SIZE size = AwtFont::getMFStringSize( hDC, font, jstr );
379 if ( size.cx > m_nMaxWidth )
380 m_nMaxWidth = size.cx;
381 env->DeleteLocalRef( jstr );
382 }
383
384 // free up the shared DC and release local refs
385 ::ReleaseDC(GetHWnd(), hDC);
386 env->DeleteLocalRef( target );
387 env->DeleteLocalRef( font );
388
389 // Now adjust the horizontal scrollbar extent
390 AdjustHorizontalScrollbar();
391 }
392
393 MsgRouting
394 AwtList::WmSize(UINT type, int w, int h)
395 {
396 AdjustHorizontalScrollbar();
397 return AwtComponent::WmSize(type, w, h);
398 }
399
400 MsgRouting
401 AwtList::OwnerDrawItem(UINT /*ctrlId*/, DRAWITEMSTRUCT& drawInfo)
402 {
403 AwtComponent::DrawListItem((JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2), drawInfo);
404 return mrConsume;
405 }
406
407 MsgRouting
408 AwtList::OwnerMeasureItem(UINT /*ctrlId*/, MEASUREITEMSTRUCT& measureInfo)
409 {
410 AwtComponent::MeasureListItem((JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2), measureInfo);
411 return mrConsume;
412 }
413
414 MsgRouting
415 AwtList::WmNcHitTest(UINT x, UINT y, LRESULT& retVal)
416 {
417 if (::IsWindow(AwtWindow::GetModalBlocker(AwtComponent::GetTopLevelParentForWindow(GetHWnd())))) {
418 retVal = HTCLIENT;
419 return mrConsume;
420 }
421 return AwtComponent::WmNcHitTest(x, y, retVal);
422 }
423
424 MsgRouting
425 AwtList::WmMouseUp(UINT flags, int x, int y, int button)
426 {
427 MsgRouting result = mrDoDefault;
428 // if this list is in the modal blocked window, this message should be consumed,
429 // however AwtComponent::WmMouseUp must be called anyway
430 if (::IsWindow(AwtWindow::GetModalBlocker(AwtComponent::GetTopLevelParentForWindow(GetHWnd())))) {
431 result = mrConsume;
432 } else {
433 if (button == LEFT_BUTTON) {
434 WmCommand(0, GetListHandle(), LBN_SELCHANGE);
435 }
436 }
437 MsgRouting compResult = AwtComponent::WmMouseUp(flags, x, y, button);
438 return (result == mrConsume) ? result : compResult;
439 }
440
441 MsgRouting
442 AwtList::WmMouseDown(UINT flags, int x, int y, int button)
443 {
444 MsgRouting mrResult = AwtComponent::WmMouseDown(flags, x, y, button);
445
446 if (::IsWindow(AwtWindow::GetModalBlocker(AwtComponent::GetTopLevelParentForWindow(GetHWnd()))))
447 {
448 return mrConsume;
449 }
450
451 /*
452 * As we consume WM_LBUTONDOWN the list won't trigger ActionEvent by double click.
453 * We trigger it ourselves. (see also 6240202)
454 */
455 int clickCount = GetClickCount();
456 if (button == LEFT_BUTTON && clickCount >= 2 && clickCount % 2 == 0) {
457 WmCommand(0, GetListHandle(), LBN_DBLCLK);
458 }
459 return mrResult;
460 }
461
462 MsgRouting
463 AwtList::WmCtlColor(HDC hDC, HWND hCtrl, UINT ctlColor, HBRUSH& retBrush)
464 {
465 DASSERT(ctlColor == CTLCOLOR_LISTBOX);
466 DASSERT(hCtrl == GetListHandle());
467 ::SetBkColor(hDC, GetBackgroundColor());
468 ::SetTextColor(hDC, GetColor());
469 retBrush = GetBackgroundBrush();
470 return mrConsume;
471 }
472
473 BOOL AwtList::IsFocusingMouseMessage(MSG *pMsg)
474 {
475 return pMsg->message == WM_LBUTTONDOWN || pMsg->message == WM_LBUTTONDBLCLK;
476 }
477
478 MsgRouting AwtList::HandleEvent(MSG *msg, BOOL synthetic)
479 {
480 if (IsFocusingMouseMessage(msg)) {
481 LONG item = static_cast<LONG>(SendListMessage(LB_ITEMFROMPOINT, 0, msg->lParam));
482 if (item != LB_ERR) {
483 if (isMultiSelect) {
484 if (IsItemSelected(item)) {
485 Deselect(item);
486 } else {
487 Select(item);
488 }
489 } else {
490 Select(item);
491 }
492 }
493 delete msg;
494 return mrConsume;
495 }
496 if (msg->message == WM_KEYDOWN && msg->wParam == VK_RETURN) {
497 WmNotify(LBN_DBLCLK);
498 }
499 return AwtComponent::HandleEvent(msg, synthetic);
500 }
501
502 // Fix for 4665745.
503 // Override WmPrint to catch when the list control (not wrapper) should
504 // operate WM_PRINT to be compatible with the "smooth scrolling" feature.
505 MsgRouting AwtList::WmPrint(HDC hDC, LPARAM flags)
506 {
507 if (!isWrapperPrint &&
508 (flags & PRF_CLIENT) &&
509 (GetStyleEx() & WS_EX_CLIENTEDGE))
510 {
511 int nOriginalDC = ::SaveDC(hDC);
512 DASSERT(nOriginalDC != 0);
513 // Save a copy of the DC for WmPrintClient
514 VERIFY(::SaveDC(hDC));
515 DefWindowProc(WM_PRINT, (WPARAM) hDC,
516 (flags & (PRF_CLIENT | PRF_CHECKVISIBLE | PRF_ERASEBKGND)));
517 VERIFY(::RestoreDC(hDC, nOriginalDC));
518
519 flags &= ~PRF_CLIENT;
520 }
521
522 return AwtComponent::WmPrint(hDC, flags);
523 }
524
525 MsgRouting
526 AwtList::WmNotify(UINT notifyCode)
527 {
528 if (notifyCode == LBN_SELCHANGE || notifyCode == LBN_DBLCLK) {
529 /* Fixed an asserion failure when clicking on an empty List. */
530 int nCurrentSelection = SendListMessage(LB_GETCURSEL);
531 if (nCurrentSelection != LB_ERR && GetCount() > 0) {
532 if (notifyCode == LBN_SELCHANGE) {
533 DoCallback("handleListChanged", "(I)V", nCurrentSelection);
534 }
535 else if (notifyCode == LBN_DBLCLK) {
536 DoCallback("handleAction", "(IJI)V", nCurrentSelection,
537 ::JVM_CurrentTimeMillis(NULL, 0),
538 (jint)AwtComponent::GetActionModifiers());
539 }
540 }
541 }
542 return mrDoDefault;
543 }
544
545 BOOL AwtList::InheritsNativeMouseWheelBehavior() {return true;}
546
547 jint AwtList::_GetMaxWidth(void *param)
548 {
549 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
550
551 jobject self = (jobject)param;
552
553 jint result = 0;
554 AwtList *l = NULL;
555
556 PDATA pData;
557 JNI_CHECK_PEER_GOTO(self, ret);
558 l = (AwtList *)pData;
559 if (::IsWindow(l->GetHWnd()))
560 {
561 result = l->GetMaxWidth();
562 }
563 ret:
564 env->DeleteGlobalRef(self);
565
566 return result;
567 }
568
569 void AwtList::_UpdateMaxItemWidth(void *param)
570 {
571 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
572
573 jobject self = (jobject)param;
574
575 AwtList *l = NULL;
576
577 PDATA pData;
578 JNI_CHECK_PEER_GOTO(self, ret);
579 l = (AwtList *)pData;
580 if (::IsWindow(l->GetHWnd()))
581 {
582 l->UpdateMaxItemWidth();
583 }
584 ret:
585 env->DeleteGlobalRef(self);
586 }
587
588 void AwtList::_AddItems(void *param)
589 {
590 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
591
592 AddItemsStruct *ais = (AddItemsStruct *)param;
593 jobject self = ais->list;
594 jobjectArray items = ais->items;
595 jint index = ais->index;
596 jint width = ais->width;
597
598 int badAlloc = 0;
599 AwtList *l = NULL;
600
601 PDATA pData;
602 JNI_CHECK_PEER_GOTO(self, ret);
603 JNI_CHECK_NULL_GOTO(items, "null items", ret);
604 l = (AwtList*)pData;
605 if (::IsWindow(l->GetHWnd()))
606 {
607 int itemCount = env->GetArrayLength(items);
608 if (itemCount > 0)
609 {
610 AwtList* l = (AwtList*)pData;
611 l->SendListMessage(WM_SETREDRAW, (WPARAM)FALSE, 0);
612 for (jsize i=0; i < itemCount; i++)
613 {
614 LPTSTR itemPtr = NULL;
615 jstring item = (jstring)env->GetObjectArrayElement(items, i);
616 if (env->ExceptionCheck()) goto ret;
617 if (item == NULL) goto next_item;
618 itemPtr = (LPTSTR)JNU_GetStringPlatformChars(env, item, 0);
619 if (itemPtr == NULL)
620 {
621 badAlloc = 1;
622 }
623 else
624 {
625 l->InsertString(index+i, itemPtr);
626 JNU_ReleaseStringPlatformChars(env, item, itemPtr);
627 }
628 env->DeleteLocalRef(item);
629 next_item:
630 ;
631 }
632 l->SendListMessage(WM_SETREDRAW, (WPARAM)TRUE, 0);
633 l->InvalidateList(NULL, TRUE);
634 l->CheckMaxWidth(width);
635 }
636 }
637 ret:
638 env->DeleteGlobalRef(self);
639 env->DeleteGlobalRef(items);
640
641 delete ais;
642
643 if (badAlloc)
644 {
645 throw std::bad_alloc();
646 }
647 }
648
649 void AwtList::_DelItems(void *param)
650 { JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
651
652 DelItemsStruct *dis = (DelItemsStruct *)param;
653 jobject self = dis->list;
654 jint start = dis->start;
655 jint end = dis->end;
656
657 AwtList *l = NULL;
658
659 PDATA pData;
660 JNI_CHECK_PEER_GOTO(self, ret);
661 l = (AwtList*)pData;
662 if (::IsWindow(l->GetHWnd()))
663 {
664 int count = l->GetCount();
665
666 if (start == 0 && end == count)
667 {
668 l->SendListMessage(LB_RESETCONTENT);
669 }
670 else
671 {
672 for (int i = start; i <= end; i++)
673 {
674 l->SendListMessage(LB_DELETESTRING, start);
675 }
676 }
677
678 l->UpdateMaxItemWidth();
679 }
680 ret:
681 env->DeleteGlobalRef(self);
682
683 delete dis;
684 }
685
686 void AwtList::_Select(void *param)
687 {
688 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
689
690 SelectElementStruct *ses = (SelectElementStruct *)param;
691 jobject self = ses->list;
692 jint index = ses->index;
693
694 AwtList *l = NULL;
695
696 PDATA pData;
697 JNI_CHECK_PEER_GOTO(self, ret);
698 l = (AwtList*)pData;
699 if (::IsWindow(l->GetHWnd()))
700 {
701 l->Select(index);
702 }
703 ret:
704 env->DeleteGlobalRef(self);
705
706 delete ses;
707 }
708
709 void AwtList::_Deselect(void *param)
710 {
711 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
712
713 SelectElementStruct *ses = (SelectElementStruct *)param;
714 jobject self = ses->list;
715 jint index = ses->index;
716
717 AwtList *l = NULL;
718
719 PDATA pData;
720 JNI_CHECK_PEER_GOTO(self, ret);
721 l = (AwtList*)pData;
722 if (::IsWindow(l->GetHWnd()))
723 {
724 l->Deselect(index);
725 }
726 ret:
727 env->DeleteGlobalRef(self);
728
729 delete ses;
730 }
731
732 void AwtList::_MakeVisible(void *param)
733 {
734 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
735
736 SelectElementStruct *ses = (SelectElementStruct *)param;
737 jobject self = ses->list;
738 jint index = ses->index;
739
740 AwtList *l = NULL;
741
742 PDATA pData;
743 JNI_CHECK_PEER_GOTO(self, ret);
744 l = (AwtList*)pData;
745 if (::IsWindow(l->GetHWnd()))
746 {
747 l->SendListMessage(LB_SETTOPINDEX, index);
748 }
749 ret:
750 env->DeleteGlobalRef(self);
751
752 delete ses;
753 }
754
755 jboolean AwtList::_IsSelected(void *param)
756 {
757 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
758
759 SelectElementStruct *ses = (SelectElementStruct *)param;
760 jobject self = ses->list;
761 jint index = ses->index;
762
763 jboolean result = JNI_FALSE;
764 AwtList *l = NULL;
765
766 PDATA pData;
767 JNI_CHECK_PEER_GOTO(self, ret);
768 l = (AwtList*)pData;
769 if (::IsWindow(l->GetHWnd()))
770 {
771 result = l->IsItemSelected(index);
772 }
773 ret:
774 env->DeleteGlobalRef(self);
775
776 delete ses;
777
778 return result;
779 }
780
781 void AwtList::_SetMultipleSelections(void *param)
782 {
783 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
784
785 SetMultipleSelectionsStruct *sms = (SetMultipleSelectionsStruct *)param;
786 jobject self = sms->list;
787 jboolean on = sms->on;
788
789 AwtList *l = NULL;
790
791 PDATA pData;
792 JNI_CHECK_PEER_GOTO(self, ret);
793 l = (AwtList*)pData;
794 if (::IsWindow(l->GetHWnd()))
795 {
796 AwtToolkit::GetInstance().SendMessage(WM_AWT_LIST_SETMULTISELECT,
797 (WPARAM)self, on);
798 }
799 ret:
800 env->DeleteGlobalRef(self);
801
802 delete sms;
803 }
804
805 /************************************************************************
806 * WListPeer native methods
807 *
808 * This class seems to have numerous bugs in it, but they are all bugs
809 * which were present before conversion to JNI. -br.
810 */
811
812 extern "C" {
813
814 /*
815 * Class: sun_awt_windows_WListPeer
816 * Method: getMaxWidth
817 * Signature: ()I
818 */
819 JNIEXPORT jint JNICALL
820 Java_sun_awt_windows_WListPeer_getMaxWidth(JNIEnv *env, jobject self)
821 {
822 TRY;
823
824 jobject selfGlobalRef = env->NewGlobalRef(self);
825
826 return (jint)AwtToolkit::GetInstance().SyncCall(
827 (void *(*)(void *))AwtList::_GetMaxWidth,
828 (void *)selfGlobalRef);
829 // selfGlobalRef is deleted in _GetMaxWidth
830
831 CATCH_BAD_ALLOC_RET(0);
832 }
833
834 /*
835 * Class: sun_awt_windows_WListPeer
836 * Method: updateMaxItemWidth
837 * Signature: ()V
838 */
839 JNIEXPORT void JNICALL
840 Java_sun_awt_windows_WListPeer_updateMaxItemWidth(JNIEnv *env, jobject self)
841 {
842 TRY;
843
844 jobject selfGlobalRef = env->NewGlobalRef(self);
845
846 AwtToolkit::GetInstance().SyncCall(AwtList::_UpdateMaxItemWidth,
847 (void *)selfGlobalRef);
848 // selfGlobalRef is deleted in _UpdateMaxItemWidth
849
850 CATCH_BAD_ALLOC;
851 }
852
853 /*
854 * Class: sun_awt_windows_WListPeer
855 * Method: addItems
856 * Signature: ([Ljava/lang/String;II)V
857 */
858 JNIEXPORT void JNICALL
859 Java_sun_awt_windows_WListPeer_addItems(JNIEnv *env, jobject self,
860 jobjectArray items, jint index, jint width)
861 {
862 TRY;
863
864 AddItemsStruct *ais = new AddItemsStruct;
865 ais->list = env->NewGlobalRef(self);
866 ais->items = (jobjectArray)env->NewGlobalRef(items);
867 ais->index = index;
868 ais->width = width;
869
870 AwtToolkit::GetInstance().SyncCall(AwtList::_AddItems, ais);
871 // global refs and ais are deleted in _AddItems()
872
873 CATCH_BAD_ALLOC;
874 }
875
876 /*
877 * Class: sun_awt_windows_WListPeer
878 * Method: delItems
879 * Signature: (II)V
880 */
881 JNIEXPORT void JNICALL
882 Java_sun_awt_windows_WListPeer_delItems(JNIEnv *env, jobject self,
883 jint start, jint end)
884 {
885 TRY;
886
887 DelItemsStruct *dis = new DelItemsStruct;
888 dis->list = env->NewGlobalRef(self);
889 dis->start = start;
890 dis->end = end;
891
892 AwtToolkit::GetInstance().SyncCall(AwtList::_DelItems, dis);
893 // global ref and dis are deleted in _DelItems
894
895 CATCH_BAD_ALLOC;
896 }
897
898 /*
899 * Class: sun_awt_windows_WListPeer
900 * Method: select
901 * Signature: (I)V
902 */
903 JNIEXPORT void JNICALL
904 Java_sun_awt_windows_WListPeer_select(JNIEnv *env, jobject self,
905 jint pos)
906 {
907 TRY;
908
909 SelectElementStruct *ses = new SelectElementStruct;
910 ses->list = env->NewGlobalRef(self);
911 ses->index = pos;
912
913 AwtToolkit::GetInstance().SyncCall(AwtList::_Select, ses);
914 // global ref and ses are deleted in _Select
915
916 CATCH_BAD_ALLOC;
917 }
918
919 /*
920 * Class: sun_awt_windows_WListPeer
921 * Method: deselect
922 * Signature: (I)V
923 */
924 JNIEXPORT void JNICALL
925 Java_sun_awt_windows_WListPeer_deselect(JNIEnv *env, jobject self,
926 jint pos)
927 {
928 TRY;
929
930 SelectElementStruct *ses = new SelectElementStruct;
931 ses->list = env->NewGlobalRef(self);
932 ses->index = pos;
933
934 AwtToolkit::GetInstance().SyncCall(AwtList::_Deselect, ses);
935 // global ref and ses are deleted in _Deselect
936
937 CATCH_BAD_ALLOC;
938 }
939
940 /*
941 * Class: sun_awt_windows_WListPeer
942 * Method: makeVisible
943 * Signature: (I)V
944 */
945 JNIEXPORT void JNICALL
946 Java_sun_awt_windows_WListPeer_makeVisible(JNIEnv *env, jobject self,
947 jint pos)
948 {
949 TRY;
950
951 SelectElementStruct *ses = new SelectElementStruct;
952 ses->list = env->NewGlobalRef(self);
953 ses->index = pos;
954
955 AwtToolkit::GetInstance().SyncCall(AwtList::_MakeVisible, ses);
956 // global ref and ses are deleted in _MakeVisible
957
958 CATCH_BAD_ALLOC;
959 }
960
961 /*
962 * Class: sun_awt_windows_WListPeer
963 * Method: setMultipleSelections
964 * Signature: (Z)V
965 */
966 JNIEXPORT void JNICALL
967 Java_sun_awt_windows_WListPeer_setMultipleSelections(JNIEnv *env, jobject self,
968 jboolean on)
969 {
970 TRY;
971
972 SetMultipleSelectionsStruct *sms = new SetMultipleSelectionsStruct;
973 sms->list = env->NewGlobalRef(self);
974 sms->on = on;
975
976 AwtToolkit::GetInstance().SyncCall(AwtList::_SetMultipleSelections, sms);
977 // global ref and sms are deleted in AwtList::_SetMultipleSelections
978
979 CATCH_BAD_ALLOC;
980 }
981
982 /*
983 * Class: sun_awt_windows_WListPeer
984 * Method: create
985 * Signature: (Lsun/awt/windows/WComponentPeer;)V
986 */
987 JNIEXPORT void JNICALL
988 Java_sun_awt_windows_WListPeer_create(JNIEnv *env, jobject self,
989 jobject parent)
990 {
991 TRY;
992
993 AwtToolkit::CreateComponent(self, parent,
994 (AwtToolkit::ComponentFactory)AwtList::Create);
995
996 CATCH_BAD_ALLOC;
997 }
998
999 /*
1000 * Class: sun_awt_windows_WListPeer
1001 * Method: isSelected
1002 * Signature: (I)Z
1003 */
1004 JNIEXPORT jboolean JNICALL
1005 Java_sun_awt_windows_WListPeer_isSelected(JNIEnv *env, jobject self,
1006 jint index)
1007 {
1008 TRY;
1009
1010 SelectElementStruct *ses = new SelectElementStruct;
1011 ses->list = env->NewGlobalRef(self);
1012 ses->index = index;
1013
1014 return (jboolean)AwtToolkit::GetInstance().SyncCall(
1015 (void *(*)(void *))AwtList::_IsSelected, ses);
1016 // global ref and ses are deleted in _IsSelected
1017
1018 CATCH_BAD_ALLOC_RET(FALSE);
1019 }
1020
1021 } /* extern "C" */