summaryrefslogtreecommitdiff
path: root/indra/newview/llfloateruipreview.cpp
blob: 4870494b20f96e85e1c2c40b6eff46a2be394da5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
/**
 * @file llfloateruipreview.cpp
 * @brief Tool for previewing and editing floaters, plus localization tool integration
 *
 * $LicenseInfo:firstyear=2008&license=viewergpl$
 * 
 * Copyright (c) 2008-2009, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at
 * http://secondlifegrid.net/programs/open_source/licensing/flossexception
 * 
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

// Tool for previewing floaters and panels for localization and UI design purposes.
// See: https://wiki.lindenlab.com/wiki/GUI_Preview_And_Localization_Tools
// See: https://jira.lindenlab.com/browse/DEV-16869

// *TODO: Translate error messgaes using notifications/alerts.xml

#include "llviewerprecompiledheaders.h"	// Precompiled headers

#include "llfloateruipreview.h"			// Own header

// Internal utility
#include "llrender.h"
#include "llsdutil.h"
#include "llxmltree.h"
#include "llviewerwindow.h"
#include "lllivefile.h"

// XUI
#include "lluictrlfactory.h"
#include "llcombobox.h"
#include "llresizebar.h"
#include "llscrolllistitem.h"
#include "llscrolllistctrl.h"
#include "llfilepicker.h"
#include "lldraghandle.h"
#include "lllayoutstack.h"
#include "llviewermenu.h"
#include "llrngwriter.h"

// Boost (for linux/unix command-line execv)
#include <boost/tokenizer.hpp>
#include <boost/shared_ptr.hpp>

// External utility
#include <string>

#if LL_DARWIN
#include <CoreFoundation/CFURL.h>
#endif

// Static initialization
LLFloaterUIPreview* LLFloaterUIPreview::sInstance = NULL;			// initialization of static instance pointer to NULL
std::string LLFloaterUIPreview::mSavedEditorPath = std::string("");
std::string LLFloaterUIPreview::mSavedEditorArgs = std::string("");
std::string LLFloaterUIPreview::mSavedDiffPath	  = std::string("");
static const S32 PRIMARY_FLOATER = 1;
static const S32 SECONDARY_FLOATER = 2;

static LLDefaultChildRegistry::Register<LLOverlapPanel> register_overlap_panel("overlap_panel");

static std::string get_xui_dir()
{
	std::string delim = gDirUtilp->getDirDelimiter();
	return gDirUtilp->getSkinBaseDir() + delim + "default" + delim + "xui" + delim;
}

// Localization reset forcer -- ensures that when localization is temporarily changed for previewed floater, it is reset
// Changes are made here
LLLocalizationResetForcer::LLLocalizationResetForcer(S32 ID)
{
	mSavedLocalization = LLUI::sSettingGroups["config"]->getString("Language");				// save current localization setting
	LLUI::sSettingGroups["config"]->setString("Language", LLFloaterUIPreview::getLocStr(ID));// hack language to be the one we want to preview floaters in
	LLUI::setupPaths();														// forcibly reset XUI paths with this new language
}

// Actually reset in destructor
// Changes are reversed here
LLLocalizationResetForcer::~LLLocalizationResetForcer()
{
	LLUI::sSettingGroups["config"]->setString("Language", mSavedLocalization);	// reset language to what it was before we changed it
	LLUI::setupPaths();														// forcibly reset XUI paths with this new language
}

// Live file constructor
// Needs full path for LLLiveFile but needs just file name for this code, hence the reduntant arguments; easier than separating later
LLGUIPreviewLiveFile::LLGUIPreviewLiveFile(std::string path, std::string name, LLFloaterUIPreview* parent)
        : mFileName(name),
		mParent(parent),
		mFirstFade(TRUE),
		mFadeTimer(NULL),
		LLLiveFile(path, 1.0)
{}

LLGUIPreviewLiveFile::~LLGUIPreviewLiveFile()
{
	mParent->mLiveFile = NULL;
	if(mFadeTimer)
	{
		mFadeTimer->mParent = NULL;
		// deletes itself; see lltimer.cpp
	}
}

// Live file load
bool LLGUIPreviewLiveFile::loadFile()
{
	mParent->displayFloater(FALSE,1);	// redisplay the floater
	if(mFirstFade)	// only fade if it wasn't just clicked on; can't use "clicked" BOOL below because of an oddity with setting LLLiveFile initial state
	{
		mFirstFade = FALSE;
	}
	else
	{
		if(mFadeTimer)
		{
			mFadeTimer->mParent = NULL;
		}
		mFadeTimer = new LLFadeEventTimer(0.05f,this);
	}
	return true;
}

// Initialize fade event timer
LLFadeEventTimer::LLFadeEventTimer(F32 refresh, LLGUIPreviewLiveFile* parent)
	: mParent(parent),
	mFadingOut(TRUE),
	LLEventTimer(refresh)
{
	mOriginalColor = mParent->mParent->mDisplayedFloater->getBackgroundColor();
}

// Single tick of fade event timer: increment the color
BOOL LLFadeEventTimer::tick()
{
	float diff = 0.04f;
	if(TRUE == mFadingOut)	// set fade for in/out color direction
	{
		diff = -diff;
	}

	if(NULL == mParent)	// no more need to tick, so suicide
	{
		delete this;
		return FALSE;
	}

	// Set up colors
	LLColor4 bg_color = mParent->mParent->mDisplayedFloater->getBackgroundColor();
	LLSD colors = bg_color.getValue();
	LLSD colors_old = colors;

	// Tick colors
	colors[0] = colors[0].asReal() - diff; if(colors[0].asReal() < mOriginalColor.getValue()[0].asReal()) { colors[0] = colors_old[0]; }
	colors[1] = colors[1].asReal() - diff; if(colors[1].asReal() < mOriginalColor.getValue()[1].asReal()) { colors[1] = colors_old[1]; }
	colors[2] = colors[2].asReal() + diff; if(colors[2].asReal() > mOriginalColor.getValue()[2].asReal()) { colors[2] = colors_old[2]; }

	// Clamp and set colors
	bg_color.setValue(colors);
	bg_color.clamp();	// make sure we didn't exceed [0,1]
	mParent->mParent->mDisplayedFloater->setBackgroundColor(bg_color);

	if(bg_color[2] <= 0.0f)	// end of fade out, start fading in
	{
		mFadingOut = FALSE;
	}

	return FALSE;
}

// Constructor
LLFloaterUIPreview::LLFloaterUIPreview(const LLSD& key)
  : LLFloater(key),
	mDisplayedFloater(NULL),
	mDisplayedFloater_2(NULL),
	mLiveFile(NULL),
	// sHighlightingDiffs(FALSE),
	mHighlightingOverlaps(FALSE),
	mLastDisplayedX(0),
	mLastDisplayedY(0)

{
	sInstance = this;
	// called from floater reg: LLUICtrlFactory::getInstance()->buildFloater(this, "floater_ui_preview.xml");
}

// Destructor
LLFloaterUIPreview::~LLFloaterUIPreview()
{
	// spawned floaters are deleted automatically, so we don't need to delete them here

	// save contents of textfields so it can be restored later if the floater is created again this session
	LLFloaterUIPreview::mSavedEditorPath = mEditorPathTextBox->getText();
	LLFloaterUIPreview::mSavedEditorArgs = mEditorArgsTextBox->getText();
	LLFloaterUIPreview::mSavedDiffPath   = mDiffPathTextBox->getText();

	// delete live file if it exists
	if(sInstance->mLiveFile)
	{
		delete sInstance->mLiveFile;
		sInstance->mLiveFile = NULL;
	}

	sInstance = NULL;	// clear static pointer
}

// Perform post-build setup (defined in superclass)
BOOL LLFloaterUIPreview::postBuild()
{
	LLPanel* main_panel_tmp = getChild<LLPanel>("main_panel");				// get a pointer to the main panel in order to...
	mFileList = main_panel_tmp->getChild<LLScrollListCtrl>("name_list");	// save pointer to file list
	// Double-click opens the floater, for convenience
	mFileList->setDoubleClickCallback(onClickDisplayFloater, (void*)&PRIMARY_FLOATER);

	// get pointers to buttons and link to callbacks
	mLanguageSelection = main_panel_tmp->getChild<LLComboBox>("language_select_combo");
	mLanguageSelection->setSelectionCallback(boost::bind(&LLFloaterUIPreview::onLanguageComboSelect, this, mLanguageSelection));
	mLanguageSelection_2 = main_panel_tmp->getChild<LLComboBox>("language_select_combo_2");
	mLanguageSelection_2->setSelectionCallback(boost::bind(&LLFloaterUIPreview::onLanguageComboSelect, this, mLanguageSelection));
	LLPanel* editor_panel_tmp = main_panel_tmp->getChild<LLPanel>("editor_panel");
	mDisplayFloaterBtn = main_panel_tmp->getChild<LLButton>("display_floater");
	mDisplayFloaterBtn->setClickedCallback(onClickDisplayFloater,  (void*)&PRIMARY_FLOATER);
	mDisplayFloaterBtn_2 = main_panel_tmp->getChild<LLButton>("display_floater_2");
	mDisplayFloaterBtn_2->setClickedCallback(onClickDisplayFloater,  (void*)&SECONDARY_FLOATER);
	mToggleOverlapButton = main_panel_tmp->getChild<LLButton>("toggle_overlap_panel");
	mToggleOverlapButton->setClickedCallback(onClickToggleOverlapping, this);
	mCloseOtherButton = main_panel_tmp->getChild<LLButton>("close_displayed_floater");
	mCloseOtherButton->setClickedCallback(onClickCloseDisplayedFloater, (void*)&PRIMARY_FLOATER);
	mCloseOtherButton_2 = main_panel_tmp->getChild<LLButton>("close_displayed_floater_2");
	mCloseOtherButton_2->setClickedCallback(onClickCloseDisplayedFloater, (void*)&SECONDARY_FLOATER);
	mEditFloaterBtn = main_panel_tmp->getChild<LLButton>("edit_floater");
	mEditFloaterBtn->setClickedCallback(onClickEditFloater, this);
	mExecutableBrowseButton = editor_panel_tmp->getChild<LLButton>("browse_for_executable");
	LLPanel* vlt_panel_tmp = main_panel_tmp->getChild<LLPanel>("vlt_panel");
	mExecutableBrowseButton->setClickedCallback(onClickBrowseForEditor, this);
	mDiffBrowseButton = vlt_panel_tmp->getChild<LLButton>("browse_for_vlt_diffs");
	mDiffBrowseButton->setClickedCallback(onClickBrowseForDiffs, NULL);
	mToggleHighlightButton = vlt_panel_tmp->getChild<LLButton>("toggle_vlt_diff_highlight");
	mToggleHighlightButton->setClickedCallback(onClickToggleDiffHighlighting, NULL);
	main_panel_tmp->getChild<LLButton>("save_floater")->setClickedCallback(onClickSaveFloater, (void*)&PRIMARY_FLOATER);
	main_panel_tmp->getChild<LLButton>("save_all_floaters")->setClickedCallback(onClickSaveAll, (void*)&PRIMARY_FLOATER);

	getChild<LLButton>("export_schema")->setClickedCallback(boost::bind(&LLFloaterUIPreview::onClickExportSchema, this));

	// get pointers to text fields
	mEditorPathTextBox = editor_panel_tmp->getChild<LLLineEditor>("executable_path_field");
	mEditorArgsTextBox = editor_panel_tmp->getChild<LLLineEditor>("executable_args_field");
	mDiffPathTextBox = vlt_panel_tmp->getChild<LLLineEditor>("vlt_diff_path_field");

	// *HACK: restored saved editor path and args to textfields
	mEditorPathTextBox->setText(LLFloaterUIPreview::mSavedEditorPath);
	mEditorArgsTextBox->setText(LLFloaterUIPreview::mSavedEditorArgs);
	mDiffPathTextBox->setText(LLFloaterUIPreview::mSavedDiffPath);

	// Set up overlap panel
	mOverlapPanel = getChild<LLOverlapPanel>("overlap_panel");

	sInstance->childSetVisible("overlap_scroll", mHighlightingOverlaps);
	
	mDelim = gDirUtilp->getDirDelimiter();	// initialize delimiter to dir sep slash

	// refresh list of available languages (EN will still be default)
	BOOL found = TRUE;
	BOOL found_en_us = FALSE;
	std::string language_directory;
	std::string xui_dir = get_xui_dir();	// directory containing localizations -- don't forget trailing delim
	mLanguageSelection->removeall();																				// clear out anything temporarily in list from XML
	while(found)																									// for every directory
	{
		if((found = gDirUtilp->getNextFileInDir(xui_dir, "*", language_directory, FALSE)))							// get next directory
		{
			std::string full_path = xui_dir + language_directory;
			if(LLFile::isfile(full_path.c_str()))																	// if it's not a directory, skip it
			{
				continue;
			}

			if(strncmp("template",language_directory.c_str(),8) && -1 == language_directory.find("."))				// if it's not the template directory or a hidden directory
			{
				if(!strncmp("en",language_directory.c_str(),5))													// remember if we've seen en, so we can make it default
				{
					found_en_us = TRUE;
				}
				else
				{
					mLanguageSelection->add(std::string(language_directory));											// add it to the language selection dropdown menu
					mLanguageSelection_2->add(std::string(language_directory));
				}
			}
		}
	}
	if(found_en_us)
	{
		mLanguageSelection->add(std::string("en"),ADD_TOP);															// make en first item if we found it
		mLanguageSelection_2->add(std::string("en"),ADD_TOP);	
	}
	else
	{
		std::string warning = std::string("No EN localization found; check your XUI directories!");
		popupAndPrintWarning(warning);
	}
	mLanguageSelection->selectFirstItem();																			// select the first item
	mLanguageSelection_2->selectFirstItem();

	refreshList();																									// refresh the list of available floaters

	return TRUE;
}

// Callback for language combo box selection: refresh current floater when you change languages
void LLFloaterUIPreview::onLanguageComboSelect(LLUICtrl* ctrl)
{
	LLComboBox* caller = dynamic_cast<LLComboBox*>(ctrl);
	if (!caller)
		return;
	if(caller->getName() == std::string("language_select_combo"))
	{
		if(mDisplayedFloater)
		{
			onClickCloseDisplayedFloater((void*)&PRIMARY_FLOATER);
			displayFloater(TRUE,1);
		}
	}
	else
	{
		if(mDisplayedFloater_2)
		{
			onClickCloseDisplayedFloater((void*)&PRIMARY_FLOATER);
			displayFloater(TRUE,2);	// *TODO: make take an arg
		}
	}

}

void LLFloaterUIPreview::onClickExportSchema()
{
	gViewerWindow->setCursor(UI_CURSOR_WAIT);
	std::string template_path = gDirUtilp->getExpandedFilename(LL_PATH_DEFAULT_SKIN, "xui", "schema");

	typedef LLWidgetTypeRegistry::Registrar::registry_map_t::const_iterator registry_it;
	registry_it end_it = LLWidgetTypeRegistry::defaultRegistrar().endItems();
	for(registry_it it = LLWidgetTypeRegistry::defaultRegistrar().beginItems();
		it != end_it;
		++it)
	{
		std::string widget_name = it->first;
		const LLInitParam::BaseBlock& block = 
			(*LLDefaultParamBlockRegistry::instance().getValue(*LLWidgetTypeRegistry::instance().getValue(widget_name)))();
		LLXMLNodePtr root_nodep = new LLXMLNode();
		LLRNGWriter().writeRNG(widget_name, root_nodep, block, "http://www.lindenlab.com/xui");

		std::string file_name(template_path + gDirUtilp->getDirDelimiter() + widget_name + ".rng");

		LLFILE* rng_file = LLFile::fopen(file_name.c_str(), "w");
		{
			LLXMLNode::writeHeaderToFile(rng_file);
			const bool use_type_decorations = false;
			root_nodep->writeToFile(rng_file, std::string(), use_type_decorations);
		}
		fclose(rng_file);
	}
	gViewerWindow->setCursor(UI_CURSOR_ARROW);
}


// Close click handler -- delete my displayed floater if it exists
void LLFloaterUIPreview::onClose(bool app_quitting)
{
	if(!app_quitting && sInstance && sInstance->mDisplayedFloater)
	{
		onClickCloseDisplayedFloater((void*)&PRIMARY_FLOATER);
		onClickCloseDisplayedFloater((void*)&SECONDARY_FLOATER);
		delete sInstance->mDisplayedFloater;
		sInstance->mDisplayedFloater = NULL;
	}
	destroy();
}

// Error handling (to avoid code repetition)
// *TODO: this is currently unlocalized.  Add to alerts/notifications.xml, someday, maybe.
void LLFloaterUIPreview::popupAndPrintWarning(std::string& warning)
{
	llwarns << warning << llendl;
	LLSD args;
	args["MESSAGE"] = warning;
	LLNotifications::instance().add("GenericAlert", args);
}

// Get localization string from drop-down menu
std::string LLFloaterUIPreview::getLocStr(S32 ID)
{
	if(ID == 1)
	{
		return sInstance->mLanguageSelection->getSelectedItemLabel(0);
	}
	else
	{
		return sInstance->mLanguageSelection_2->getSelectedItemLabel(0);
	}
}

// Get localized directory (build path from data directory to XUI files, substituting localization string in for language)
std::string LLFloaterUIPreview::getLocalizedDirectory()
{
	return get_xui_dir() + (sInstance ? getLocStr(1) : "en") + mDelim; // e.g. "C:/Code/guipreview/indra/newview/skins/xui/en/";
}

// Refresh the list of floaters by doing a directory traverse for XML XUI floater files
// Could be used to grab any specific language's list of compatible floaters, but currently it's just used to get all of them
void LLFloaterUIPreview::refreshList()
{
	// Note: the mask doesn't seem to accept regular expressions, so there need to be two directory searches here
	mFileList->clearRows();		// empty list
	std::string name;
	BOOL found = TRUE;
	while(found)				// for every floater file that matches the pattern
	{
		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "floater_*.xml", name, FALSE)))	// get next file matching pattern
		{
			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
		}
	}
	found = TRUE;
	while(found)				// for every menu file that matches the pattern
	{
		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "menu_*.xml", name, FALSE)))	// get next file matching pattern
		{
			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
		}
	}
	found = TRUE;
	while(found)				// for every panel file that matches the pattern
	{
		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "panel_*.xml", name, FALSE)))	// get next file matching pattern
		{
			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
		}
	}

	if(!mFileList->isEmpty())	// if there were any matching files, just select the first one (so we don't have to worry about disabling buttons when no entry is selected)
	{
		mFileList->selectFirstItem();
	}
}

// Add a single entry to the list of available floaters
// Note: no deduplification (shouldn't be necessary)
void LLFloaterUIPreview::addFloaterEntry(const std::string& path)
{
	LLUUID* entry_id = new LLUUID();				// create a new UUID
	entry_id->generate(path);
	const LLUUID& entry_id_ref = *entry_id;			// get a reference to the UUID for the LLSD block

	// fill LLSD column entry: initialize row/col structure
	LLSD row;
	row["id"] = entry_id_ref;
	LLSD& columns = row["columns"];

	// Get name of floater:
	LLXmlTree xml_tree;
	std::string full_path = getLocalizedDirectory() + path;			// get full path
	BOOL success = xml_tree.parseFile(full_path.c_str(), TRUE);		// parse xml
	std::string entry_name;
	std::string entry_title;
	if(success)
	{
		// get root (or error handle)
		LLXmlTreeNode* root_floater = xml_tree.getRoot();
		if (!root_floater)
		{
			std::string warning = std::string("No root node found in XUI file: ") + path;
			popupAndPrintWarning(warning);
			return;
		}

		// get name
		root_floater->getAttributeString("name",entry_name);
		if(std::string("") == entry_name)
		{
			entry_name = "Error: unable to load " + std::string(path);	// set to error state if load fails
		}

		// get title
		root_floater->getAttributeString("title",entry_title); // some don't have a title, and some have title = "(unknown)", so just leave it blank if it fails
	}
	else
	{
		std::string warning = std::string("Unable to parse XUI file: ") + path;	// error handling
		popupAndPrintWarning(warning);
		if(mLiveFile)
		{
			delete mLiveFile;
			mLiveFile = NULL;
		}
		return;
	}

	// Fill floater title column
	columns[0]["column"] = "title_column";
	columns[0]["type"] = "text";
	columns[0]["value"] = entry_title;

	// Fill floater path column
	columns[1]["column"] = "file_column";
	columns[1]["type"] = "text";
	columns[1]["value"] = std::string(path);

	// Fill floater name column
	columns[2]["column"] = "top_level_node_column";
	columns[2]["type"] = "text";
	columns[2]["value"] = entry_name;

	mFileList->addElement(row);		// actually add to list
}

// Respond to button click to display/refresh currently-selected floater
void LLFloaterUIPreview::onClickDisplayFloater(void* data)
{
	S32 caller_id = *((S32*)data);
	displayFloater(TRUE, caller_id);
	if(caller_id == 1)
	{
		sInstance->mDisplayedFloater->center();	// move displayed floater to the center of the screen
	}
}

// Saves the current floater/panel
void LLFloaterUIPreview::onClickSaveFloater(void* data)
{
	S32 caller_id = *((S32*)data);
	displayFloater(TRUE, caller_id, true);
	if(caller_id == 1)
	{
		sInstance->mDisplayedFloater->center();	// move displayed floater to the center of the screen
	}
}

// Saves all floater/panels
void LLFloaterUIPreview::onClickSaveAll(void* data)
{
	S32 caller_id = *((S32*)data);
	int listSize = sInstance->mFileList->getItemCount();

	for (int index = 0; index < listSize; index++)
	{
		sInstance->mFileList->selectNthItem(index);
		displayFloater(TRUE, caller_id, true);
	}
}

// Given path to floater or panel XML file "filename.xml",
// returns "filename_new.xml"
static std::string append_new_to_xml_filename(const std::string& path)
{
	std::string full_filename = gDirUtilp->findSkinnedFilename(LLUI::getLocalizedSkinPath(), path);
	std::string::size_type extension_pos = full_filename.rfind(".xml");
	full_filename.resize(extension_pos);
	full_filename += "_new.xml";
	return full_filename;
}

// Actually display the floater
// Only set up a new live file if this came from a click (at which point there should be no existing live file), rather than from the live file's update itself;
// otherwise, we get an infinite loop as the live file keeps recreating itself.  That means this function is generally called twice.
void LLFloaterUIPreview::displayFloater(BOOL click, S32 ID, bool save)
{
	// Convince UI that we're in a different language (the one selected on the drop-down menu)
	LLLocalizationResetForcer reset_forcer(ID);							// save old language in reset forcer object (to be reset upon destruction when it falls out of scope)

	LLPreviewedFloater** floaterp = (ID == 1 ? &(sInstance->mDisplayedFloater) : &(sInstance->mDisplayedFloater_2));
	if(ID == 1)
	{
		BOOL floater_already_open = sInstance->mDisplayedFloater != NULL;
		if(floater_already_open)											// if we are already displaying a floater
		{
			sInstance->mLastDisplayedX = sInstance->mDisplayedFloater->calcScreenRect().mLeft;	// save floater's last known position to put the new one there
			sInstance->mLastDisplayedY = sInstance->mDisplayedFloater->calcScreenRect().mBottom;
			delete sInstance->mDisplayedFloater;							// delete it (this closes it too)
			sInstance->mDisplayedFloater = NULL;							// and reset the pointer
		}
	}
	else
	{
		if(sInstance->mDisplayedFloater_2 != NULL)
		{
			delete sInstance->mDisplayedFloater_2;
			sInstance->mDisplayedFloater_2 = NULL;
		}
	}

	std::string path = sInstance->mFileList->getSelectedItemLabel(1);		// get the path of the currently-selected floater
	if(std::string("") == path)											// if no item is selected
	{
		return;															// ignore click (this can only happen with empty list; otherwise an item is always selected)
	}

	*floaterp = new LLPreviewedFloater();

	if(!strncmp(path.c_str(),"floater_",8))								// if it's a floater
	{
		if (save)
		{
			LLXMLNodePtr floater_write = new LLXMLNode();			
			LLUICtrlFactory::getInstance()->buildFloater(*floaterp, path, FALSE, floater_write);	// just build it

			if (!floater_write->isNull())
			{
				std::string full_filename = append_new_to_xml_filename(path);
				LLFILE* floater_temp = LLFile::fopen(full_filename.c_str(), "w");
				LLXMLNode::writeHeaderToFile(floater_temp);
				const bool use_type_decorations = false;
				floater_write->writeToFile(floater_temp, std::string(), use_type_decorations);
				fclose(floater_temp);
			}
		}
		else
		{
			LLUICtrlFactory::getInstance()->buildFloater(*floaterp, path, TRUE);	// just build it
		}

	}
	else if (!strncmp(path.c_str(),"menu_",5))								// if it's a menu
	{
		if (save)
		{	
			LLXMLNodePtr menu_write = new LLXMLNode();	
			LLMenuGL* menu = LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>(path, gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance(), menu_write);

			if (!menu_write->isNull())
			{
				std::string full_filename = append_new_to_xml_filename(path);
				LLFILE* menu_temp = LLFile::fopen(full_filename.c_str(), "w");
				LLXMLNode::writeHeaderToFile(menu_temp);
				const bool use_type_decorations = false;
				menu_write->writeToFile(menu_temp, std::string(), use_type_decorations);
				fclose(menu_temp);
			}

			delete menu;
		}
	}
	else																// if it is a panel...
	{
		static LLUICachedControl<S32> floater_header_size ("UIFloaterHeaderSize", 0);

		LLPanel::Params panel_params;
		LLPanel* panel = LLUICtrlFactory::create<LLPanel>(panel_params);	// create a new panel

		if (save)
		{
			LLXMLNodePtr panel_write = new LLXMLNode();
			LLUICtrlFactory::getInstance()->buildPanel(panel, path, panel_write);		// build it
			
			if (!panel_write->isNull())
			{
				std::string full_filename = append_new_to_xml_filename(path);
				LLFILE* panel_temp = LLFile::fopen(full_filename.c_str(), "w");
				LLXMLNode::writeHeaderToFile(panel_temp);
				const bool use_type_decorations = false;
				panel_write->writeToFile(panel_temp, std::string(), use_type_decorations);
				fclose(panel_temp);
			}
		}
		else
		{
			LLUICtrlFactory::getInstance()->buildPanel(panel, path);		// build it
			LLRect new_size = panel->getRect();								// get its rectangle
			panel->setOrigin(0,0);											// reset its origin point so it's not offset by -left or other XUI attributes
			(*floaterp)->setTitle(path);									// use the file name as its title, since panels have no guaranteed meaningful name attribute
			panel->setUseBoundingRect(TRUE);								// enable the use of its outer bounding rect (normally disabled because it's O(n) on the number of sub-elements)
			panel->updateBoundingRect();									// update bounding rect
			LLRect bounding_rect = panel->getBoundingRect();				// get the bounding rect
			LLRect panel_rect = panel->getRect();							// get the panel's rect
			LLRect new_rect = panel_rect.unionWith(bounding_rect);			// union them to make sure we get the biggest one possible
			(*floaterp)->reshape(new_rect.getWidth(), new_rect.getHeight() + floater_header_size);	// reshape floater to match the union rect's dimensions
			panel->reshape(new_rect.getWidth(), new_rect.getHeight());		// reshape panel to match the union rect's dimensions as well (both are needed)
			(*floaterp)->addChild(panel);					// add panel as child
			(*floaterp)->openFloater();						// open floater (needed?)
		}
	}

	if(ID == 1)
	{
		(*floaterp)->setOrigin(sInstance->mLastDisplayedX, sInstance->mLastDisplayedY);
	}

	// *HACK: Remove ability to close it; if you close it, its destructor gets called, but we don't know it's null and try to delete it again,
	// resulting in a double free
	(*floaterp)->setCanClose(FALSE);
	
	if(ID == 1)
	{
		sInstance->mCloseOtherButton->setEnabled(TRUE);	// enable my floater's close button
	}
	else
	{
		sInstance->mCloseOtherButton_2->setEnabled(TRUE);
	}

	// *TODO: Make the secondary floater pop up next to the primary one.  Doesn't seem to always work if secondary was up first...
	if((sInstance->mDisplayedFloater && ID == 2) || (sInstance->mDisplayedFloater_2 && ID == 1))
	{
		sInstance->mDisplayedFloater_2->setSnapTarget(sInstance->mDisplayedFloater->getHandle());
		sInstance->mDisplayedFloater->addDependentFloater(sInstance->mDisplayedFloater_2);
	}

	// Add localization to title so user knows whether it's localized or defaulted to en
	std::string full_path = sInstance->getLocalizedDirectory() + path;
	std::string floater_lang = "EN";
	llstat dummy;
	if(!LLFile::stat(full_path.c_str(), &dummy))	// if the file does not exist
	{
		floater_lang = getLocStr(ID);
	}
	std::string new_title = (*floaterp)->getTitle() + std::string(" [") + floater_lang +
						(ID == 1 ? " - Primary" : " - Secondary") + std::string("]");
	(*floaterp)->setTitle(new_title);

	if(click && ID == 1 && !save)
	{
		// set up live file to track it
		if(sInstance->mLiveFile)
		{
			delete sInstance->mLiveFile;
			sInstance->mLiveFile = NULL;
		}
		sInstance->mLiveFile = new LLGUIPreviewLiveFile(std::string(full_path.c_str()),std::string(path.c_str()),sInstance);
		sInstance->mLiveFile->checkAndReload();
		sInstance->mLiveFile->addToEventTimer();
	}

	if(ID == 1)
	{
		sInstance->mToggleOverlapButton->setEnabled(TRUE);
	}

	if(LLView::sHighlightingDiffs && click && ID == 1)
	{
		sInstance->highlightChangedElements();
	}

	if(ID == 1)
	{
		sInstance->mOverlapMap.clear();
		LLView::sPreviewClickedElement = NULL;	// stop overlapping elements from drawing
		sInstance->mOverlapPanel->mLastClickedElement = NULL;
		sInstance->findOverlapsInChildren((LLView*)sInstance->mDisplayedFloater);

		// highlight and enable them
		if(sInstance->mHighlightingOverlaps)
		{
			for(OverlapMap::iterator iter = sInstance->mOverlapMap.begin(); iter != sInstance->mOverlapMap.end(); ++iter)
			{
				LLView* viewp = iter->first;
				LLView::sPreviewHighlightedElements.insert(viewp);
			}
		}
		else if(LLView::sHighlightingDiffs)
		{
			sInstance->highlightChangedElements();
		}
	}

	// NOTE: language is reset here automatically when the reset forcer object falls out of scope (see header for details)
}

// Respond to button click to edit currently-selected floater
void LLFloaterUIPreview::onClickEditFloater(void*)
{
	std::string file_name = sInstance->mFileList->getSelectedItemLabel(1);	// get the file name of the currently-selected floater
	if(std::string("") == file_name)										// if no item is selected
	{
		return;															// ignore click
	}
	std::string path = sInstance->getLocalizedDirectory() + file_name;

	// stat file to see if it exists (some localized versions may not have it there are no diffs, and then we try to open an nonexistent file)
	llstat dummy;
	if(LLFile::stat(path.c_str(), &dummy))								// if the file does not exist
	{
		std::string warning = "No file for this floater exists in the selected localization.  Opening the EN version instead.";
		popupAndPrintWarning(warning);

		path = get_xui_dir() + sInstance->mDelim + "en" + sInstance->mDelim + file_name; // open the en version instead, by default
	}

	// get executable path
	const char* exe_path_char;
	std::string path_in_textfield = sInstance->mEditorPathTextBox->getText();
	if(std::string("") != path_in_textfield)	// if the text field is not emtpy, use its path
	{
		exe_path_char = path_in_textfield.c_str();
	}
	else if (!LLUI::sSettingGroups["config"]->getString("XUIEditor").empty())
	{
		exe_path_char = LLUI::sSettingGroups["config"]->getString("XUIEditor").c_str();
	}
	else									// otherwise use the path specified by the environment variable
	{
		exe_path_char = getenv("LL_XUI_EDITOR");
	}

	// error check executable path
	if(NULL == exe_path_char)
	{
		std::string warning = "Select an editor by setting the environment variable LL_XUI_EDITOR or specifying its path in the \"Editor Path\" field.";
		popupAndPrintWarning(warning);
		return;
	}
	std::string exe_path = exe_path_char;	// do this after error check, otherwise internal strlen call fails on bad char*

	// remove any quotes; they're added back in later where necessary
	int found_at;
	while((found_at = exe_path.find("\"")) != -1 || (found_at = exe_path.find("'")) != -1)
	{
		exe_path.erase(found_at,1);
	}

	llstat s;
	if(!LLFile::stat(exe_path.c_str(), &s)) // If the executable exists
	{
		// build paths and arguments
		std::string args;
		std::string custom_args = sInstance->mEditorArgsTextBox->getText();
		int position_of_file = custom_args.find(std::string("%FILE%"), 0);	// prepare to replace %FILE% with actual file path
		std::string first_part_of_args = "";
		std::string second_part_of_args = "";
		if(-1 == position_of_file)	// default: Executable.exe File.xml
		{
			args = std::string("\"") + path + std::string("\"");			// execute the command Program.exe "File.xml"
		}
		else						// use advanced command-line arguments, e.g. "Program.exe -safe File.xml" -windowed for "-safe %FILE% -windowed"
		{
			first_part_of_args = custom_args.substr(0,position_of_file);											// get part of args before file name
			second_part_of_args = custom_args.substr(position_of_file+6,custom_args.length());						// get part of args after file name
			custom_args = first_part_of_args + std::string("\"") + path + std::string("\"") + second_part_of_args;	// replace %FILE% with "<file path>" and put back together
			args = custom_args;																						// and save in the variable that is actually used
		}

		// find directory in which executable resides by taking everything after last slash
		int last_slash_position = exe_path.find_last_of(sInstance->mDelim);
		if(-1 == last_slash_position)
		{
			std::string warning = std::string("Unable to find a valid path to the specified executable for XUI XML editing: ") + exe_path;
			popupAndPrintWarning(warning);
			return;
		}
        std::string exe_dir = exe_path.substr(0,last_slash_position); // strip executable off, e.g. get "C:\Program Files\TextPad 5" (with or without trailing slash)

#if LL_WINDOWS
		PROCESS_INFORMATION pinfo;
		STARTUPINFOA sinfo;
		memset(&sinfo, 0, sizeof(sinfo));
		memset(&pinfo, 0, sizeof(pinfo));

		std::string exe_name = exe_path.substr(last_slash_position+1);
		args = exe_name + std::string(" ") + args;				// and prepend the executable name, so we get 'Program.exe "Arg1"'

		char *args2 = new char[args.size() + 1];	// Windows requires that the second parameter to CreateProcessA be a writable (non-const) string...
		strcpy(args2, args.c_str());

		if(!CreateProcessA(exe_path.c_str(), args2, NULL, NULL, FALSE, 0, NULL, exe_dir.c_str(), &sinfo, &pinfo))
		{
			// DWORD dwErr = GetLastError();
			std::string warning = "Creating editor process failed!";
			popupAndPrintWarning(warning);
		}
		else
		{
			// foo = pinfo.dwProcessId; // get your pid here if you want to use it later on
			// sGatewayHandle = pinfo.hProcess;
			CloseHandle(pinfo.hThread); // stops leaks - nothing else
		}

		delete[] args2;
#else	// if !LL_WINDOWS
		// This code was copied from the code to run SLVoice, with some modification; should work in UNIX (Mac/Darwin or Linux)
		{
			std::vector<std::string> arglist;
			arglist.push_back(exe_path.c_str());

			// Split the argument string into separate strings for each argument
			typedef boost::tokenizer< boost::char_separator<char> > tokenizer;
			boost::char_separator<char> sep("","\" ", boost::drop_empty_tokens);

			tokenizer tokens(args, sep);
			tokenizer::iterator token_iter;
			BOOL inside_quotes = FALSE;
			BOOL last_was_space = FALSE;
			for(token_iter = tokens.begin(); token_iter != tokens.end(); ++token_iter)
			{
				if(!strncmp("\"",(*token_iter).c_str(),2))
				{
					inside_quotes = !inside_quotes;
				}
				else if(!strncmp(" ",(*token_iter).c_str(),2))
				{
					if(inside_quotes)
					{
						arglist.back().append(std::string(" "));
						last_was_space = TRUE;
					}
				}
				else
				{
					std::string to_push = *token_iter;
					if(last_was_space)
					{
						arglist.back().append(to_push);
						last_was_space = FALSE;
					}
					else
					{
						arglist.push_back(to_push);
					}
				}
			}
			
			// create an argv vector for the child process
			char **fakeargv = new char*[arglist.size() + 1];
			int i;
			for(i=0; i < arglist.size(); i++)
				fakeargv[i] = const_cast<char*>(arglist[i].c_str());

			fakeargv[i] = NULL;

			fflush(NULL); // flush all buffers before the child inherits them
			pid_t id = vfork();
			if(id == 0)
			{
				// child
				execv(exe_path.c_str(), fakeargv);

				// If we reach this point, the exec failed.
				// Use _exit() instead of exit() per the vfork man page.
				std::string warning = "Creating editor process failed (vfork/execv)!";
				popupAndPrintWarning(warning);
				_exit(0);
			}

			// parent
			delete[] fakeargv;
			// sGatewayPID = id;
		}
#endif	// LL_WINDOWS
	}
	else
	{
		std::string warning = "Unable to find path to external XML editor for XUI preview tool";
		popupAndPrintWarning(warning);
	}
}

// Respond to button click to browse for an executable with which to edit XML files
void LLFloaterUIPreview::onClickBrowseForEditor(void*)
{
	// create load dialog box
	LLFilePicker::ELoadFilter type = (LLFilePicker::ELoadFilter)((intptr_t)((void*)LLFilePicker::FFLOAD_ALL));	// nothing for *.exe so just use all
	LLFilePicker& picker = LLFilePicker::instance();
	if (!picker.getOpenFile(type))	// user cancelled -- do nothing
	{
		return;
	}

	// put the selected path into text field
	const std::string chosen_path = picker.getFirstFile();
	std::string executable_path = chosen_path;
#if LL_DARWIN
	// on Mac, if it's an application bundle, figure out the actual path from the Info.plist file
	CFStringRef path_cfstr = CFStringCreateWithCString(kCFAllocatorDefault, chosen_path.c_str(), kCFStringEncodingMacRoman);		// get path as a CFStringRef
	CFURLRef path_url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, path_cfstr, kCFURLPOSIXPathStyle, TRUE);			// turn it into a CFURLRef
	CFBundleRef chosen_bundle = CFBundleCreate(kCFAllocatorDefault, path_url);												// get a handle for the bundle
	if(NULL != chosen_bundle)
	{
		CFDictionaryRef bundleInfoDict = CFBundleGetInfoDictionary(chosen_bundle);												// get the bundle's dictionary
		if(NULL != bundleInfoDict)
		{
			CFStringRef executable_cfstr = (CFStringRef)CFDictionaryGetValue(bundleInfoDict, CFSTR("CFBundleExecutable"));	// get the name of the actual executable (e.g. TextEdit or firefox-bin)
			int max_file_length = 256;																						// (max file name length is 255 in OSX)
			char executable_buf[max_file_length];
			if(CFStringGetCString(executable_cfstr, executable_buf, max_file_length, kCFStringEncodingMacRoman))			// convert CFStringRef to char*
			{
				executable_path += std::string("/Contents/MacOS/") + std::string(executable_buf);							// append path to executable directory and then executable name to exec path
			}
			else
			{
				std::string warning = "Unable to get CString from CFString for executable path";
				popupAndPrintWarning(warning);
			}
		}
		else
		{
			std::string warning = "Unable to get bundle info dictionary from application bundle";
			popupAndPrintWarning(warning);
		}
	}
	else
	{
		if(-1 != executable_path.find(".app"))	// only warn if this path actually had ".app" in it, i.e. it probably just wasn'nt an app bundle and that's okay
		{
			std::string warning = std::string("Unable to get bundle from path \"") + chosen_path + std::string("\"");
			popupAndPrintWarning(warning);
		}
	}

#endif
	sInstance->mEditorPathTextBox->setText(std::string(executable_path));	// copy the path to the executable to the textfield for display and later fetching
}

// Respond to button click to browse for a VLT-generated diffs file
void LLFloaterUIPreview::onClickBrowseForDiffs(void*)
{
	// create load dialog box
	LLFilePicker::ELoadFilter type = (LLFilePicker::ELoadFilter)((intptr_t)((void*)LLFilePicker::FFLOAD_XML));	// nothing for *.exe so just use all
	LLFilePicker& picker = LLFilePicker::instance();
	if (!picker.getOpenFile(type))	// user cancelled -- do nothing
	{
		return;
	}

	// put the selected path into text field
	const std::string chosen_path = picker.getFirstFile();
	sInstance->mDiffPathTextBox->setText(std::string(chosen_path));	// copy the path to the executable to the textfield for display and later fetching
	if(LLView::sHighlightingDiffs)								// if we're already highlighting, toggle off and then on so we get the data from the new file
	{
		onClickToggleDiffHighlighting(NULL);
		onClickToggleDiffHighlighting(NULL);
	}
}

void LLFloaterUIPreview::onClickToggleDiffHighlighting(void*)
{
	if(sInstance->mHighlightingOverlaps)
	{
		onClickToggleOverlapping(NULL);
		sInstance->mToggleOverlapButton->toggleState();
	}

	LLView::sPreviewHighlightedElements.clear();	// clear lists first
	sInstance->mDiffsMap.clear();
	sInstance->mFileList->clearHighlightedItems();

	if(LLView::sHighlightingDiffs)				// Turning highlighting off
	{
		LLView::sHighlightingDiffs = !sInstance->sHighlightingDiffs;
		return;
	}
	else											// Turning highlighting on
	{
		// Get the file and make sure it exists
		std::string path_in_textfield = sInstance->mDiffPathTextBox->getText();	// get file path
		BOOL error = FALSE;

		if(std::string("") == path_in_textfield)									// check for blank file
		{
			std::string warning = "Unable to highlight differences because no file was provided; fill in the relevant text field";
			popupAndPrintWarning(warning);
			error = TRUE;
		}

		llstat dummy;
		if(LLFile::stat(path_in_textfield.c_str(), &dummy) && !error)			// check if the file exists (empty check is reduntant but useful for the informative error message)
		{
			std::string warning = std::string("Unable to highlight differences because an invalid path to a difference file was provided:\"") + path_in_textfield + "\"";
			popupAndPrintWarning(warning);
			error = TRUE;
		}

		// Build a list of changed elements as given by the XML
		std::list<std::string> changed_element_names;
		LLXmlTree xml_tree;
		BOOL success = xml_tree.parseFile(path_in_textfield.c_str(), TRUE);

		if(success && !error)
		{
			LLXmlTreeNode* root_floater = xml_tree.getRoot();
			if(!strncmp("XuiDelta",root_floater->getName().c_str(),9))
			{
				for (LLXmlTreeNode* child = root_floater->getFirstChild();		// get the first child first, then below get the next one; otherwise the iterator is invalid (bug or feature in XML code?)
					 child != NULL;
 					 child = root_floater->getNextChild())	// get child for next iteration
				{
					if(!strncmp("file",child->getName().c_str(),5))
					{
						sInstance->scanDiffFile(child);
					}
					else if(!strncmp("error",child->getName().c_str(),6))
					{
						std::string error_file, error_message;
						child->getAttributeString("filename",error_file);
						child->getAttributeString("message",error_message);
						if(sInstance->mDiffsMap.find(error_file) != sInstance->mDiffsMap.end())
						{
							sInstance->mDiffsMap.insert(std::make_pair(error_file,std::make_pair(StringListPtr(new StringList), StringListPtr(new StringList))));
						}
						sInstance->mDiffsMap[error_file].second->push_back(error_message);
					}
					else
					{
						std::string warning = std::string("Child was neither a file or an error, but rather the following:\"") + std::string(child->getName()) + "\"";
						popupAndPrintWarning(warning);
						error = TRUE;
						break;
					}
				}
			}
			else
			{
				std::string warning = std::string("Root node not named XuiDelta:\"") + path_in_textfield + "\"";
				popupAndPrintWarning(warning);
				error = TRUE;
			}
		}
		else if(!error)
		{
			std::string warning = std::string("Unable to create tree from XML:\"") + path_in_textfield + "\"";
			popupAndPrintWarning(warning);
			error = TRUE;
		}

		if(error)	// if we encountered an error, reset the button to off
		{
			sInstance->mToggleHighlightButton->setToggleState(FALSE);		
		}
		else		// only toggle if we didn't encounter an error
		{
			LLView::sHighlightingDiffs = !sInstance->sHighlightingDiffs;
			sInstance->highlightChangedElements();		// *TODO: this is extraneous, right?
			sInstance->highlightChangedFiles();			// *TODO: this is extraneous, right?
		}
	}
}

void LLFloaterUIPreview::scanDiffFile(LLXmlTreeNode* file_node)
{
	// Get file name
	std::string file_name;
	file_node->getAttributeString("name",file_name);
	if(std::string("") == file_name)
	{
		std::string warning = std::string("Empty file name encountered in differences:\"") + file_name + "\"";
		popupAndPrintWarning(warning);
		return;
	}

	// Get a list of changed elements
	// Get the first child first, then below get the next one; otherwise the iterator is invalid (bug or feature in XML code?)
	for (LLXmlTreeNode* child = file_node->getFirstChild(); child != NULL; child = file_node->getNextChild())
	{
		if(!strncmp("delta",child->getName().c_str(),6))
		{
			std::string id;
			child->getAttributeString("id",id);
			if(mDiffsMap.find(file_name) == mDiffsMap.end())
			{
				mDiffsMap.insert(std::make_pair(file_name,std::make_pair(StringListPtr(new StringList), StringListPtr(new StringList))));
			}
			mDiffsMap[file_name].first->push_back(std::string(id.c_str()));
		}
		else
		{
			std::string warning = std::string("Child of file was not a delta, but rather the following:\"") + std::string(child->getName()) + "\"";
			popupAndPrintWarning(warning);
			return;
		}
	}
}

void LLFloaterUIPreview::highlightChangedElements()
{
	if(NULL == mLiveFile)
	{
		return;
	}

	// Process differences first (we want their warnings to be shown underneath other warnings)
	StringListPtr changed_element_paths;
	DiffMap::iterator iterExists = mDiffsMap.find(mLiveFile->mFileName);
	if(iterExists != mDiffsMap.end())
	{
		changed_element_paths = mDiffsMap[mLiveFile->mFileName].first;		// retrieve list of changed element paths from map
	}

	for(std::list<std::string>::iterator iter = changed_element_paths->begin(); iter != changed_element_paths->end(); ++iter)	// for every changed element path
	{
		LLView* element = sInstance->mDisplayedFloater;
		if(!strncmp(iter->c_str(),".",1))	// if it's the root floater itself
		{
			continue;
		}

		// Split element hierarchy path on period (*HACK: it's possible that the element name will have a period in it, in which case this won't work.  See https://wiki.lindenlab.com/wiki/Viewer_Localization_Tool_Documentation.)
		typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
		boost::char_separator<char> sep(".");
		tokenizer tokens(*iter, sep);
		tokenizer::iterator token_iter;
		BOOL failed = FALSE;
		for(token_iter = tokens.begin(); token_iter != tokens.end(); ++token_iter)
		{
			element = element->getChild<LLView>(*token_iter,FALSE,FALSE);	// try to find element: don't recur, and don't create if missing

			// if we still didn't find it...
			if(NULL == element)												
			{
				llinfos << "Unable to find element in XuiDelta file named \"" << *iter << "\" in file \"" << mLiveFile->mFileName <<
							"\". The element may no longer exist, the path may be incorrect, or it may not be a non-displayable element (not an LLView) such as a \"string\" type." << llendl;
				failed = TRUE;
				break;
			}
		}

		if(!failed)
		{
			// Now that we have a pointer to the actual element, add it to the list of elements to be highlighted
			std::set<LLView*>::iterator iter2 = std::find(LLView::sPreviewHighlightedElements.begin(), LLView::sPreviewHighlightedElements.end(), element);
			if(iter2 == LLView::sPreviewHighlightedElements.end())
			{
				LLView::sPreviewHighlightedElements.insert(element);
			}
		}
	}

	// Process errors second, so their warnings show up on top of other warnings
	StringListPtr error_list;
	if(iterExists != mDiffsMap.end())
	{
		error_list = mDiffsMap[mLiveFile->mFileName].second;
	}
	for(std::list<std::string>::iterator iter = error_list->begin(); iter != error_list->end(); ++iter)	// for every changed element path
	{
		std::string warning = std::string("Error listed among differences.  Filename: \"") + mLiveFile->mFileName + "\".  Message: \"" + *iter + "\"";
		popupAndPrintWarning(warning);
	}
}

void LLFloaterUIPreview::highlightChangedFiles()
{
	for(DiffMap::iterator iter = mDiffsMap.begin(); iter != mDiffsMap.end(); ++iter)	// for every file listed in diffs
	{
		LLScrollListItem* item = mFileList->getItemByLabel(std::string(iter->first), FALSE, 1);
		if(item)
		{
			item->setHighlighted(TRUE);
		}
	}
}

// Respond to button click to browse for an executable with which to edit XML files
void LLFloaterUIPreview::onClickCloseDisplayedFloater(void* data)
{
	S32 caller_id = *((S32*)data);
	if(caller_id == 1)
	{
		sInstance->mCloseOtherButton->setEnabled(FALSE);
		sInstance->mToggleOverlapButton->setEnabled(FALSE);

		if(sInstance->mDisplayedFloater)
		{
			sInstance->mLastDisplayedX = sInstance->mDisplayedFloater->calcScreenRect().mLeft;
			sInstance->mLastDisplayedY = sInstance->mDisplayedFloater->calcScreenRect().mBottom;
			delete sInstance->mDisplayedFloater;
			sInstance->mDisplayedFloater = NULL;
		}

		if(sInstance->mLiveFile)
		{
			delete sInstance->mLiveFile;
			sInstance->mLiveFile = NULL;
		}

		if(sInstance->mToggleOverlapButton->getToggleState())
		{
			sInstance->mToggleOverlapButton->toggleState();
			onClickToggleOverlapping(NULL);
		}

		LLView::sPreviewClickedElement = NULL;	// stop overlapping elements panel from drawing
		sInstance->mOverlapPanel->mLastClickedElement = NULL;
	}
	else
	{
		sInstance->mCloseOtherButton_2->setEnabled(FALSE);
		delete sInstance->mDisplayedFloater_2;
		sInstance->mDisplayedFloater_2 = NULL;
	}

}

BOOL LLPreviewedFloater::handleRightMouseDown(S32 x, S32 y, MASK mask)
{
	selectElement(this,x,y,0);
	return TRUE;
}

// *NOTE: In order to hide all of the overlapping elements of the selected element so as to see it in context, here is what you would need to do:
// -This selectElement call fills the overlap panel as normal.  The element which is "selected" here is actually just an intermediate selection step;
// what you've really selected is a list of elements: the one you clicked on and everything that overlaps it.
// -The user then selects one of the elements from this list the overlap panel (click handling to the overlap panel would have to be added).
//  This becomes the final selection (as opposed to the intermediate selection that was just made).
// -Everything else that is currently displayed on the overlap panel should be hidden from view in the previewed floater itself (setVisible(FALSE)).
// -Subsequent clicks on other elements in the overlap panel (they should still be there) should make other elements the final selection.
// -On close or on the click of a new button, everything should be shown again and all selection state should be cleared.
//   ~Jacob, 8/08
BOOL LLPreviewedFloater::selectElement(LLView* parent, int x, int y, int depth)
{
	if(getVisible())
	{
		BOOL handled = FALSE;
		if(LLFloaterUIPreview::containerType(parent))
		{
			for(child_list_const_iter_t child_it = parent->getChildList()->begin(); child_it != parent->getChildList()->end(); ++child_it)
			{
				LLView* child = *child_it;
				S32 local_x = x - child->getRect().mLeft;
				S32 local_y = y - child->getRect().mBottom;
				if (child->pointInView(local_x, local_y) &&
					child->getVisible() &&
					selectElement(child, x, y, ++depth))
				{
					handled = TRUE;
					break;
				}
			}
		}

		if(!handled)
		{
			LLView::sPreviewClickedElement = parent;
		}
		return TRUE;
	}
	else
	{
		return FALSE;
	}
}

void LLPreviewedFloater::draw()
{
	if(NULL != LLFloaterUIPreview::sInstance)
	{
		// Set and unset sDrawPreviewHighlights flag so as to avoid using two flags
		if(LLFloaterUIPreview::sInstance->mHighlightingOverlaps)
		{
			LLView::sDrawPreviewHighlights = TRUE;
		}
		LLFloater::draw();
		if(LLFloaterUIPreview::sInstance->mHighlightingOverlaps)
		{
			LLView::sDrawPreviewHighlights = FALSE;
		}
	}
}

void LLFloaterUIPreview::onClickToggleOverlapping(void*)
{
	if(LLView::sHighlightingDiffs)
	{
		onClickToggleDiffHighlighting(NULL);
		sInstance->mToggleHighlightButton->toggleState();
	}
	LLView::sPreviewHighlightedElements.clear();	// clear lists first

	S32 width, height;
	sInstance->getResizeLimits(&width, &height);	// illegal call of non-static member function
	if(sInstance->mHighlightingOverlaps)
	{
		sInstance->mHighlightingOverlaps = !sInstance->mHighlightingOverlaps;
		// reset list of preview highlighted elements
		sInstance->setRect(LLRect(sInstance->getRect().mLeft,sInstance->getRect().mTop,sInstance->getRect().mRight - sInstance->mOverlapPanel->getRect().getWidth(),sInstance->getRect().mBottom));
		sInstance->setResizeLimits(width - sInstance->mOverlapPanel->getRect().getWidth(), height);
	}
	else
	{
		sInstance->mHighlightingOverlaps = !sInstance->mHighlightingOverlaps;
		displayFloater(FALSE,1);
		sInstance->setRect(LLRect(sInstance->getRect().mLeft,sInstance->getRect().mTop,sInstance->getRect().mRight + sInstance->mOverlapPanel->getRect().getWidth(),sInstance->getRect().mBottom));
		sInstance->setResizeLimits(width + sInstance->mOverlapPanel->getRect().getWidth(), height);
	}
	sInstance->childSetVisible("overlap_scroll", sInstance->mHighlightingOverlaps);
}

void LLFloaterUIPreview::findOverlapsInChildren(LLView* parent)
{
	if(parent->getChildCount() == 0 || !containerType(parent))	// if it has no children or isn't a container type, skip it
	{
		return;
	}

	// for every child of the parent
	for(child_list_const_iter_t child_it = parent->getChildList()->begin(); child_it != parent->getChildList()->end(); ++child_it)
	{
		LLView* child = *child_it;
		if(overlapIgnorable(child))
		{
			continue;
		}

		// for every sibling
		for(child_list_const_iter_t sibling_it = parent->getChildList()->begin(); sibling_it != parent->getChildList()->end(); ++sibling_it)	// for each sibling
		{
			LLView* sibling = *sibling_it;
			if(overlapIgnorable(sibling))
			{
				continue;
			}

			// if they overlap... (we don't care if they're visible or enabled -- we want to check those anyway, i.e. hidden tabs that can be later shown)
			if(sibling != child && elementOverlap(child, sibling))
			{
				mOverlapMap[child].push_back(sibling);		// add to the map
			}
		}
		findOverlapsInChildren(child);						// recur
	}
}

// *HACK: don't overlap with the drag handle and various other elements
// This is using dynamic casts because there is no object-oriented way to tell which elements contain localizable text.  These are a few that are ignorable.
// *NOTE: If a list of elements which have localizable content were created, this function should return false if viewp's class is in that list.
BOOL LLFloaterUIPreview::overlapIgnorable(LLView* viewp)
{
	return	NULL != dynamic_cast<LLDragHandle*>(viewp) ||
			NULL != dynamic_cast<LLViewBorder*>(viewp) ||
			NULL != dynamic_cast<LLResizeBar*>(viewp);
}

// *HACK: these are the only two container types as of 8/08, per Richard
// This is using dynamic casts because there is no object-oriented way to tell which elements are containers.
BOOL LLFloaterUIPreview::containerType(LLView* viewp)
{
	return NULL != dynamic_cast<LLPanel*>(viewp) || NULL != dynamic_cast<LLLayoutStack*>(viewp);
}

// Check if two llview's rectangles overlap, with some tolerance
BOOL LLFloaterUIPreview::elementOverlap(LLView* view1, LLView* view2)
{
	LLSD rec1 = view1->getRect().getValue();
	LLSD rec2 = view2->getRect().getValue();
	int tolerance = 2;
	return (int)rec1[0] <= (int)rec2[2] - tolerance && 
		   (int)rec2[0] <= (int)rec1[2] - tolerance && 
		   (int)rec1[3] <= (int)rec2[1] - tolerance && 
		   (int)rec2[3] <= (int)rec1[1] - tolerance;
}

void LLOverlapPanel::draw()
{
	static const std::string current_selection_text("Current selection: ");
	static const std::string overlapper_text("Overlapper: ");
	LLColor4 text_color = LLColor4::grey;
	gGL.color4fv(text_color.mV);

	if(!LLView::sPreviewClickedElement)
	{
		LLUI::translate(5,getRect().getHeight()-20);	// translate to top-5,left-5
		LLView::sDrawPreviewHighlights = FALSE;
		LLFontGL::getFontSansSerifSmall()->renderUTF8(current_selection_text, 0, 0, 0, text_color,
				LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
	}
	else
	{
		LLFloaterUIPreview::OverlapMap::iterator iterExists = LLFloaterUIPreview::sInstance->mOverlapMap.find(LLView::sPreviewClickedElement);
		if(iterExists == LLFloaterUIPreview::sInstance->mOverlapMap.end())
		{
			return;
		}

		std::list<LLView*> overlappers = LLFloaterUIPreview::sInstance->mOverlapMap[LLView::sPreviewClickedElement];
		if(overlappers.size() == 0)
		{
			LLUI::translate(5,getRect().getHeight()-20);	// translate to top-5,left-5
			LLView::sDrawPreviewHighlights = FALSE;
			std::string current_selection = std::string(current_selection_text + LLView::sPreviewClickedElement->getName() + " (no elements overlap)");
			S32 text_width = LLFontGL::getFontSansSerifSmall()->getWidth(current_selection) + 10;
			LLFontGL::getFontSansSerifSmall()->renderUTF8(current_selection, 0, 0, 0, text_color,
					LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
			// widen panel enough to fit this text
			LLRect rect = getRect();
			setRect(LLRect(rect.mLeft,rect.mTop,rect.getWidth() < text_width ? rect.mLeft + text_width : rect.mRight,rect.mTop));
			return;
		}

		// recalculate required with and height; otherwise use cached
		BOOL need_to_recalculate_bounds = FALSE;
		if(mLastClickedElement == NULL)
		{
			need_to_recalculate_bounds = TRUE;
		}

		if(NULL == mLastClickedElement)
		{
			mLastClickedElement = LLView::sPreviewClickedElement;
		}

		// recalculate bounds for scroll panel
		if(need_to_recalculate_bounds || LLView::sPreviewClickedElement->getName() != mLastClickedElement->getName())
		{
			// reset panel's rectangle to its default width and height (300x600)
			LLRect panel_rect = LLFloaterUIPreview::sInstance->mOverlapPanel->getRect();
			LLFloaterUIPreview::sInstance->mOverlapPanel->setRect(LLRect(panel_rect.mLeft,panel_rect.mTop,panel_rect.mLeft+LLFloaterUIPreview::sInstance->mOverlapPanel->getRect().getWidth(),panel_rect.mTop-LLFloaterUIPreview::sInstance->mOverlapPanel->getRect().getHeight()));

			LLRect rect;

			// change bounds for selected element
			int height_sum = mLastClickedElement->getRect().getHeight() + mSpacing + 80;
			rect = LLFloaterUIPreview::sInstance->mOverlapPanel->getRect();
			LLFloaterUIPreview::sInstance->mOverlapPanel->setRect(LLRect(rect.mLeft,rect.mTop,rect.getWidth() > mLastClickedElement->getRect().getWidth() + 5 ? rect.mRight : rect.mLeft + mLastClickedElement->getRect().getWidth() + 5, rect.mBottom));

			// and widen to accomodate text if that's wider
			std::string display_text = current_selection_text + LLView::sPreviewClickedElement->getName();
			S32 text_width = LLFontGL::getFontSansSerifSmall()->getWidth(display_text) + 10;
			rect = getRect();
			setRect(LLRect(rect.mLeft,rect.mTop,rect.getWidth() < text_width ? rect.mLeft + text_width : rect.mRight,rect.mTop));

			std::list<LLView*> overlappers = LLFloaterUIPreview::sInstance->mOverlapMap[LLView::sPreviewClickedElement];
			for(std::list<LLView*>::iterator overlap_it = overlappers.begin(); overlap_it != overlappers.end(); ++overlap_it)
			{
				LLView* viewp = *overlap_it;
				height_sum += viewp->getRect().getHeight() + mSpacing*3;
		
				// widen panel's rectangle to accommodate widest overlapping element of this floater
				rect = LLFloaterUIPreview::sInstance->mOverlapPanel->getRect();
				LLFloaterUIPreview::sInstance->mOverlapPanel->setRect(LLRect(rect.mLeft,rect.mTop,rect.getWidth() > viewp->getRect().getWidth() + 5 ? rect.mRight : rect.mLeft + viewp->getRect().getWidth() + 5, rect.mBottom));
				
				// and widen to accomodate text if that's wider
				std::string display_text = overlapper_text + viewp->getName();
				S32 text_width = LLFontGL::getFontSansSerifSmall()->getWidth(display_text) + 10;
				rect = getRect();
				setRect(LLRect(rect.mLeft,rect.mTop,rect.getWidth() < text_width ? rect.mLeft + text_width : rect.mRight,rect.mTop));
			}
			// change panel's height to accommodate all element heights plus spacing between them
			rect = LLFloaterUIPreview::sInstance->mOverlapPanel->getRect();
			LLFloaterUIPreview::sInstance->mOverlapPanel->setRect(LLRect(rect.mLeft,rect.mTop,rect.mRight,rect.mTop-height_sum));
		}

		LLUI::translate(5,getRect().getHeight()-10);	// translate to top left
		LLView::sDrawPreviewHighlights = FALSE;

		// draw currently-selected element at top of overlappers
		LLUI::translate(0,-mSpacing);
		LLFontGL::getFontSansSerifSmall()->renderUTF8(current_selection_text + LLView::sPreviewClickedElement->getName(), 0, 0, 0, text_color,
				LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
		LLUI::translate(0,-mSpacing-LLView::sPreviewClickedElement->getRect().getHeight());	// skip spacing distance + height
		LLView::sPreviewClickedElement->draw();

		for(std::list<LLView*>::iterator overlap_it = overlappers.begin(); overlap_it != overlappers.end(); ++overlap_it)
		{
			LLView* viewp = *overlap_it;

			// draw separating line
			LLUI::translate(0,-mSpacing);
			gl_line_2d(0,0,getRect().getWidth()-10,0,LLColor4(192.0f/255.0f,192.0f/255.0f,192.0f/255.0f));

			// draw name
			LLUI::translate(0,-mSpacing);
			LLFontGL::getFontSansSerifSmall()->renderUTF8(overlapper_text + viewp->getName(), 0, 0, 0, text_color,
					LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);

			// draw element
			LLUI::translate(0,-mSpacing-viewp->getRect().getHeight());	// skip spacing distance + height
			viewp->draw();
		}
		mLastClickedElement = LLView::sPreviewClickedElement;
	}
}