summaryrefslogtreecommitdiffstats
path: root/dist/changes-3.1.0-b1
blob: 4979a50105ef5560ebd7893511d8ffe19f7a6dc7 (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
Qt 3.1 introduces many significant new features and many improvements
over the 3.0.x series. This file provides an overview of the main
changes since version 3.0.5. For further details see the online
documentation which is included in this distribution, and also
available at http://qt.nokia.com/doc/.

The Qt version 3.1 series is binary compatible with the 3.0.x series:
applications compiled for 3.0 will continue to run with 3.1.


****************************************************************************
*                                 General                                  *
****************************************************************************

Qt Script for Applications
--------------------------
Qt 3.1 is the first Qt release that can be used with Qt Script for
Applications (QSA). QSA provides a scripting engine, an IDE for
creating and editing scripts and script forms, and bindings to the Qt
API. Script-enabling a Qt application is not difficult and the IDE
makes it easy for resellers and end-users to write their own scripts.
QSA is due for release after Qt 3.1.


Qt Designer
-----------
Qt Designer, the visual GUI builder, has undergone several usability
improvements. A new dialog for creating and editing signals and slots
connections has been created: it is much easier to use and much faster
for setting up multiple connections. The widgets are now presented in
an easy-to-use toolbox rather than in toolbars (although you can still
have the toolbars if you want). The property editor now handles common
properties in multiple widgets simultaneously. By popular demand,
WYSIWYG support for QWidgetStack has been added. Rich text is now
supported with a rich text editor. And the code editor can be used for
ordinary member functions as well as for slots.


Qt Assistant
------------
Qt Assistant, the Qt documentation browser, can now be used with
custom documentation sets. This new functionality combined with the
new QAssistantClient class means that you can use Qt Assistant as a
help browser for your own applications. Qt Assistant has also been
enhanced by the addition of a fast full text search engine.


Motif
-----
The general industry-wide move away from Motif is leaving more and
more companies in need of a migration solution. But converting large
legacy applications in one step is often impractical. To minimize
risks and to manage the workload companies often want to port code on
a module by module basis. Qt 3.1 includeds a completely new Motif
module that supports hybrid applications in which Qt code and Motif
code coexist. (This obsoletes the earlier rudimentary Qt Xt/Motif
extension.)


ActiveX
-------
With the release of Qt 3.1, customers who use Qt for Microsoft Windows
development can now use Qt with ActiveX. The new ActiveQt module
provides a simple API for COM and ActiveX. The module can be used to
create applications which host ActiveX controls, and also to create
applications that serve ActiveX controls (e.g. Internet Explorer
plugins).


Qt/Mac
------
The introduction of Qt/Mac, a Mac OS X port of Qt, with Qt 3.0 has
proved a great success. This port has undergone many improvements in
Qt 3.1, especially with respect to Appearance Manager, anti-aliased
text and user settings. The Qt OpenGL support is greatly improved, and
uses the hardware-accelerated drivers.


Qt/Embedded
-----------
Graphics, mouse and keyboard drivers can now be compiled as plugins.


Qt library
----------
In addition to the new additions and enhancements referred to above,
as with all major Qt releases, Qt 3.1 includes hundreds of
improvements in the existing class library. Here is a brief summary of
the most significant changes:

- QTextEdit has a new text format: LogText. This is a performance and
  memory optimized format especially designed for the fast display of
  large amounts of text. The format supports basic highlighting,
  including bold and colored text.

- The new QSyntaxHighlighter class makes it both easy and efficient to
  add syntax highlighting capabilities to a QTextEdit.

- QHttp and QFtp in earlier Qt's were implementations of the
  QNetworkProtocol. Both have been extended to stand in their own
  right. If you missed some flexibility in the network protocol
  abstractions of earlier Qt's, the new QHttp and QFtp classes should
  provide the solution.

- QAccel, used to handle keyboard shortcuts, now gracefully copes with
  shortcut clashes. If a clash occurs, a new signal,
  activatedAmbiguously(), is emitted. Classes that use QAccel, like
  QButton and QPopupMenu, make use of this new functionality.
  Futhermore QAccel can now handle multi-key sequences, for example,
  Ctrl+X,Ctrl+F.

- QClipboard has been extended to simplify data exchange between
  programs.

- Thread support: almost all methods in the tools classes have been
  made reentrant. QApplication::postEvent() and a few other methods
  are now thread-safe if Qt is compiled as a multi-threaded library.
  (The documentation now states if a class or function is thread-safe
  or reentrant.)

- A QMutexLocker class has been added to simplify the locking and
  unlocking of mutexes.

- Input methods: A selectionLength() function has been added to
  QIMEvent. Japanese compositions are now handled correctly. Support
  for AIMM based input methods (those working on non-Asian versions of
  Win95/98/Me) has been added.

- Large File support: Qt's internals have been modified to support
  Large Files (> 2GB). QFileDialog will now correctly display and
  select Large Files.

- SQL module: Support for prepared query execution and value binding
  has been added. Among other benefits, this makes it possible to
  write large BLOBs (> 2 KB) to Oracle databases, and to write Unicode
  strings to SQL Server databases.


Build process
-------------
The build process has been improved:

- The configure script does not need QTDIR to be set anymore.


****************************************************************************
*                                 Library                                  *
****************************************************************************

New classes
==================

- QBackInsertIterator
- QEventLoop
- QIconFactory
- QMutexLocker
- QSyntaxHighlighter


QAction
------------------
New functions:
	void setVisible( bool )
	bool isVisible() const


QCanvas
------------------
New functions:
	void invalidate()
	bool isValid() const


QColorDialog
------------------
New functions:
	static void setStandardColor( int, QRgb )


QAccel
------------------
New signals:
	void activatedAmbiguously( int id )


QApplication
------------------
The event loop has been moved to the QEventLoop class, making it
easier to integrate other toolkits with Qt.

New functions:
	QEventLoop *eventLoop() const
	void setEventLoop( QEventLoop * )
	QString sessionKey() const


QClipboard
------------------
New functions:
	void clear( Mode mode )
	bool supportsSelection() const
	bool ownsSelection() const
	bool ownsClipboard() const
	QString text( Mode mode )  const
	QString text( QCString& subtype, Mode mode ) const
	void setText( const QString &, Mode mode )
	QMimeSource *data( Mode mode ) const
	void setData( QMimeSource*, Mode mode )
	QImage image( Mode mode ) const
	QPixmap pixmap( Mode mode ) const
	void setImage( const QImage &, Mode mode )
	void setPixmap( const QPixmap &, Mode mode )


QDesktopWidget
------------------
New functions:
	const QRect& screenGeometry( QWidget *widget ) const
	const QRect& screenGeometry( const QPoint &point ) const
	const QRect& availableGeometry( int screen ) const
	const QRect& availableGeometry( QWidget *widget ) const
	const QRect& availableGeometry( const QPoint &point ) const


QFileDialog
------------------
Large Files (> 2GB) are now correctly displayed and selected.


QFileInfo
------------------
QFileInfo now supports Large Files (> 2GB) internally. To maintain
binary compatibility the QFileInfo API cannot be adapted before Qt 4
and will truncate file sizes and offsets to 4 GB.

New functions:
	bool isHidden() const


QFile
------------------
QFile now supports Large Files (> 2GB) internally. To maintain binary
compatibility the QFile API cannot be adapted before Qt 4 and will
truncate file sizes and offsets to 4 GB.


QDir
------------------
QDir now supports Large Files (> 2GB).


QImEvent
------------------
New functions:
	in selectionLength() const


QIconSet
------------------
New functions:
	void installIconFactory( QIconFactory *factory )


QImage
------------------
New functions:
	static QImage fromMimeSource( const QString& abs_name )


QMetaObject
------------------
New functions:
	QStrList enumeratorNames( bool super ) const
	int numEnumerators( bool super ) const
	static bool hasMetaObject( const char *class_name )


QMenuData
------------------
New functions:
	bool isItemVisible( int id ) const
	void setItemVisible( int id, bool visible )
Both functions are inherited by QMenuBar and QPopupMenu


QPaintDevice
------------------
New functions (x11 only):
	static Qt::HANDLE x11AppRootWindow()
	static int x11AppDepth( int screen )
	static int x11AppCells( int screen )
	static Qt::HANDLE x11AppRootWindow( int screen )
	static Qt::HANDLE x11AppColormap( int screen )
	static void *x11AppVisual( int screen )
	static bool x11AppDefaultColormap( int screen )
	static bool x11AppDefaultVisual( int screen )
	static int x11AppDpiX( int )
	static int x11AppDpiY( int )
	static void x11SetAppDpiX( int, int )
	static void x11SetAppDpiY( int, int )


QPicture
------------------
New functions:
	void setBoundingRect( const QRect &r )


QPixmap
------------------
New functions:
	bool hasAlpha() const
	static QPixmap fromMimeSource( const QString& abs_name )


QPrinter
------------------
New functions:
	void setMargins( uint top, uint left, uint bottom, uint right )
	void margins( uint *top, uint *left, uint *bottom, uint *right ) const

Improvements:
	Handle masked images and pixmaps correctly. Add code to handle
	asymmetrical printer margins correctly.


QSessionManager
------------------
New functions:
	QString sessionKey() const


QStyleOption
------------------
New functions:
	QStyleOption( QCheckListItem* i )
	QCheckListItem* checkListItem() const

New enums values:
	PE_CheckListController, PE_CheckListIndicator,
	    PE_CheckListExclusiveIndicator, PE_PanelGroupBox
	CE_MenuBarEmptyArea
	CE_DockWindowEmptyArea
	PM_CheckListButtonSize
	CT_TabBarTab, CT_Slider, CT_Header, CT_LineEdit
	SH_GroupBox_TextLabelVerticalAlignment


QThread
------------------
New functions:
	void terminate()


QTranslator
------------------
New functions:
	bool load( const uchar *data, int len )


QVariant
------------------
New functions:
	QVariant( const QPen& )
	const QPen toPen() const
	QPen& asPen()
	bool isNull() const

New enum values:
	KeySequence, Pen


QWidget
------------------
All top-level widgets will now try to find an appropriate application
icon when they're not given one, trying in this order
 1. Parent widget's icon
 2. Top-level widget's icon
 3. Application main widget's icon

New functions:
	bool isFullScreen() const
	void setSizePolicy( QSizePolicy::SizeType hor, QSizePolicy::SizeType ver, bool hfw = FALSE )

New enum values:
	AncestorOrigin


QWMatrix
------------------
Two different transformation modes for painter transformations are now
available. See the QWMatrix documentation for details.

New functions:
	QPointArray mapToPolygon( const QRect &r ) const
	double det() const
	static void setTransformationMode( QWMatrix::TransformationMode m )
	static TransformationMode transformationMode()

New enums:
	TransformationMode { Points, Areas }


QFtp
------------------
While still remaining a subclass of QNetworkProtocol, QFtp can be now
used directly for more advanced FTP operations. The QFtp documentation
provides details of the extensions to the API.


QHttp
------------------
While still remaining a subclass of QNetworkProtocol, QHttp can be now
used directly for more advanced HTTP operations. The QHttp
documentation provides details of the extensions to the API.
 
Related new classes:
	QHttpHeader
	QHttpResponseHeader
	QHttpRequestHeader


QSqlDriver
------------------
New enum values:
	Unicode, PreparedQueries, OracleBindingStyle, ODBCBindingStyle
	

QSqlQuery
------------------
New functions:
	bool isForwardOnly() const
	void setForwardOnly( bool forward )
	bool exec()
	bool prepare( const QString& query )
	void bindValue( const QString& placeholder, const QVariant& val )
	void bindValue( int pos, const QVariant& val )
	void addBindValue( const QVariant& val )


QTableSelection
------------------
New functions:
	QTableSelection( int start_row, int start_col, int end_row, int end_col )


QTable
------------------
New properties:
	int numSelections

New functions:
	void selectCells( int start_row, int start_col, int end_row, int end_col )
	void selectRow( int row )
	void selectColumn( int col )
	void updateHeaderStates()
	void setRowLabels( const QStringList &labels )
	void setColumnLabels( const QStringList &labels )


QCString
------------------
New functions:
    	QCString &replace( char c, const char *after )
    	QCString &replace( const char *, const char * )
    	QCString &replace( char, char )

New global functions:
	QByteArray qCompress( const uchar* data, int nbytes )
	QByteArray qUncompress( const uchar* data, int nbytes )
	QByteArray qCompress( const QByteArray& data )
	QByteArray qUncompress( const QByteArray& data )
Improvements:
	Speed optimisations in lots of the old search and replace
	functions.


QDate
------------------
New functions:
	int weekNumber( int *yearNum = 0 ) const
	static QDate currentDate( Qt::DateTimeSpec )


QTime
------------------
New functions:
	static QTime currentTime( Qt::DateTimeSpec )


QDateTime
------------------
New functions:
	static QDateTime currentDateTime( Qt::DateTimeSpec )


QPtrList
------------------
New functions:
	bool replace( uint i, const type *d )


QRegExp
------------------
New functions:
	QString errorString()
	static QString escape( const QString& str )
	int numCaptures() const


QSettings
------------------
New functions:
	QSettings( Format format )
	void setPath( const QString &domain, const QString &product, Scope = User )
	void beginGroup( const QString &group )
	void endGroup()
	void resetGroup()
	QString group() const

New enums:
	Format { Native = 0, Ini }
	Scope { User, Global }


QChar
------------------
Updated Unicode tables to Unicode-3.2


QString
------------------
New functions:
	QString &append( const QByteArray & )
	QString &append( const char * )
	QString &prepend( const QByteArray & )
	QString &prepend( const char * )
	QString &remove( QChar c )
	QString &remove( char c )
	QString &remove( const QString & )
	QString &remove( const QRegExp & )
	QString &remove( const char * )
	QString &replace( uint index, uint len, QChar )
	QString &replace( uint index, uint len, char c )
	QString &replace( QChar c, const QString & )
	QString &replace( char c, const QString & after )
	QString &replace( const QString &, const QString & )
	QString &replace( QChar, QChar )
	QString &operator+=( const QByteArray &str )
	QString &operator+=( const char *str )
	static QString fromUcs2( const unsigned short *ucs2 )
	const unsigned short *ucs2() const

Improvements:
	find(), findRev() and contains() use either a fast hashing
	algorithm (for short strings) or an optimized Boyer-Moore
	implementation for long strings. Lots of smaller performance
	optimisations.


QTextStream
------------------
New functions:
	QTextCodec *codec()


QTimeEdit
------------------
New properties:
	Display display

New functions:
	uint display() const
	void setDisplay( uint )

New enums:
	Display { Hours, Minutes, Seconds, AMPM }


QFrame
------------------
New enum values:
	GroupBoxPanel


QGroupBox
------------------
New properties:
	bool flat

New functions:
	bool isFlat() const
	void setFlat( bool b )


QListBox
------------------
New functions:
	QListBoxItem* selectedItem() const


QListView
------------------
New functions:
	int sortColumn() const


QSlider
------------------
New functions:
	void addLine() ( as slot)
	void subtractLine() (as slot)


QTextBrowser
------------------
New functions:
	void sourceChanged( const QString& )
	void anchorClicked( const QString&, const QString& )


QTextEdit
------------------
QTextEdit offers another TextFormat (LogText), which is optimized
(speed and memory) for displaying large read-only texts normally used
for logging.

New properties:
	bool allowTabs

New functions:
	QString anchorAt( const QPoint& pos, AnchorAttribute a )
	void setAllowTabs( bool b )
	bool allowTabs() const
	void insert( const QString &text, uint insertionFlags = CheckNewLines | RemoveSelected )

New signals:
	void clicked( int parag, int index )
	void doubleClicked( int parag, int index )

New enums:
	TextInsertionFlags { RedoIndentation, CheckNewLines, RemoveSelected }

New enum values:
	AtWordOrDocumentBoundary


QToolButton
------------------
New properties:
	TextPosition textPosition

New functions:
	TextPosition textPosition() const
	void setTextPosition( TextPosition pos )

New enums:
	TextPosition { Right, Under }


QTooltip
------------------
New functions:
	static void setWakeUpDelay( int )


QWhatsThis
------------------
New functions:
	static void setFont( const QFont &font )


QDomDocument
------------------
New functions:
	QString toString( int ) const
	QCString toCString( int ) const


QFont on X11 
------------------ 
Improvements:
	Safe handling of huge font sizes. Added support for the new
	Xft2 font library on XFree-4.x.


QRegion on X11 
------------------ 
Improvements:
	Removed the 16 bit size limitation

****************************************************************************