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1 Here is a list of (major) changes in Qt from 0.95 to 0.96.
2
3 Bug-fixes, optimizations and improved documentation, of course.
4 QClipboard is new.
5
6 There are some changes in the API (Qt header files). Some functions have
7 been renamed or the arguments have changed. The old versions of these
8 functions have been obsoleted. A call to an obsoleted function will by
9 default generate a runtime warning the first time it is called, but it
10 will be executed correctly. If you really need to ship code fast, you can
11 turn off the runtime obsolescence warnings by calling
12 qSuppressObsoleteWarnings().
13
14 Obsoleted functions will disappear in a future release. To get
15 compile-time errors for each use of an obsoleted function, compile your
16 code with -DTEST_OBSOLETE. You should recompile without this option when
17 you have upgraded your code (otherwise, you may get linking errors).
18 Note: it is probably not a good idea to compile the Qt library with
19 -DTEST_OBSOLETE, it may cause problems if you try to link or run
20 programs that use obsoleted functions.
21
22 For new users: obsoleted functions are no longer documented, in fact they
23 are not even visible in the documentation.
24
25 *************** Changes that might affect runtime behavior *****************
26
27 QFileInfo:
28 ----------
29 size() returns uint(previousy int), 0 if the size cannot be fetched (was -1).
30 Use isFile() to check.
31
32
33 QPopupMenu
34 ------------
35 When a popup menu is a submenu (directly or as a subsub...menu) of a
36 menu bar(QMenuBar), the menu bar will now always emit the activated() or
37 highlighted() signal when a submenu emits these signals. This fix might
38 have undesired effects if you previously have worked around it by
39 connecting to signals both in menu bar and its submenus.
40
41 *************** Changes that might generate compile errors *****************
42 ************** when compiling old code *****************
43
44 QDataStream:
45 -----------
46 Serialization of int and uint is no longer supported. Use INT32 and
47 UINT32 instead. This had to be changed in order to run Qt on 64-bit
48 architectures.
49
50
51 QImage:
52 -------
53 24-bpp pixel format no longer supported, use 32-bpp instead.
54
55 This means that you have to use uint* instead of uchar* when accessing
56 pixel values. You cannot use the uchar* pointer directly, because the
57 pixel format depends on the byte order on the underlying platform. Use
58 qRgb() and friends (qcolor.h) to access the pixels.
59
60
61 QWidget:
62 --------
63 setMouseTracking() does not return bool. Call hasMouseTracking() to
64 determine the mouse tracking state. (This only affects code that
65 actually uses the return value.)
66
67 (There are other changes in QWidget, see below)
68
69
70 *************** Type changes that might generate warnings: *****************
71
72
73 QCache/QIntCache:
74 -----------------
75 Using int/uint instead of long/ulong.
76
77
78 QDate/QTime/QDateTime:
79 ----------------------
80 Using int/uint instead of long/ulong (MS-DOS required long).
81
82
83 QIODevice/QBuffer/QFile:
84 ------------------------
85 Using int/uint instead of long/ulong.
86
87
88 QKeyEvent:
89 ----------
90 ascii() now returns int (previously uchar).
91
92
93 QTableView:
94 ------------
95 uint used instead of ulong (tableFlags() etc.)
96
97
98 QTextStream:
99 ------------
100 int used instead of long (flags() etc.)
101
102
103 ***************** Obsoleted functions **********************
104
105 QAccel:
106 -------
107 enable(), disable() and isDisabled() are obsolete.
108 Use setEnabled(TRUE/FALSE) and !isEnabled() instead.
109 isItemDisabled(), enableItem(), disableItem() are obsolete.
110 Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.
111
112
113 QApplication:
114 -------------
115 cursor(), setCursor() and restoreCursor() obsoleted.
116 Use overrideCursor(), setOverrideCursor() and restoreOverrideCursor()
117 instead.
118
119
120 QBitmap:
121 --------
122 Constructor takes "const uchar *bits" instead of "const char *"
123 because of sign problems (uchar = unsigned char). Old constructors are
124 obsolete.
125
126
127 QButton:
128 --------
129 toggleButton() is obsolete, renamed to isToggleButton().
130
131
132 QColor:
133 -------
134 The functions QRED, QGREEN, QBLUE, QRGB, QGRAY obsolete.
135 Instead, use qRed, qGreen, qBlue, qRgb, qGray.
136
137
138 QComboBox:
139 ----------
140 setStrList() obsolete, use clear() + insertStrList() instead.
141 string() obsolete, use text() instead.
142
143
144 QLCDNumber:
145 ----------
146 longValue() is obsolete, use intValue() instead.
147
148
149 QListbox:
150 ---------
151 The macro LBI_String is obsolete, use LBI_text instead.
152 string() obsolete, use text() instead.
153 stringCopy() and setStringCopy() are obsolete.
154
155
156 QMenuData:
157 ----------
158 string() obsolete, use text() instead.
159 isItemDisabled(), enableItem(), disableItem() are obsolete.
160 Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.
161 checkItem() and uncheckItem() are obsolete.
162 Use setItemChecked(TRUE/FALSE) instead.
163
164
165 QPainter:
166 ---------
167
168 drawBezier() is obsolete, general Bezier curves are rarely used and
169 cost too much. Qt will only support drawQuadBezier() (four-point
170 Bezier) in the future.
171
172 QPointArray:
173 -----------
174 move() is obsolete, use translate() instead.
175 bezier() is obsolete, general Bezier curves are rarely used and
176 cost too much. Qt will only support quadBezier() (four-point
177 Bezier) in the future.
178
179
180
181 QRect:
182 ------
183 move() is obsolete, use moveBy() instead.
184 setTopLeft(), setTopRight(), setBottomLeft(), setBottomRight() and
185 setCenter() is obsolete, use moveTopLeft(), moveTopRight(),
186 moveBottomLeft(), moveBottomRight() and moveCenter() instead.
187
188
189 QRegion:
190 -------
191 move() is obsolete, use translate() instead.
192
193
194 QSocketNotifier:
195 ----------------
196 enabled() is obsolete. Use isEnabled() instead.
197
198
199 QWidget:
200 --------
201 enable(), disable() and isDisabled() are obsolete.
202 Use setEnabled(TRUE/FALSE) and !isEnabled() instead.
203
204 setMinimumSize(), setMaximumSize(), minimumSize(), maximumSize() are obsolete
205 use setMinSize(), setMaxSize(), minSize(), maxSize() instead.
206
207 enableUpdates() obsolete, use isUpdatesEnabled()/setUpdatesEnabled().
208
209 id() is obsolete, it has been renamed to winId().
210
211 ***************** All other changes from 0.95 to 0.96 **********************
212
213 moc
214 ----------
215 Gives a warning if no output is generated.
216
217
218 qglobal.h:
219 ----------
220 INT32 and UINT32 typedefs changed to work with DEC Alpha.
221
222
223 QApplication:
224 -------------
225 clipboard() is new.
226
227
228 QButtonGroup:
229 -------------
230 Exclusive group setting added (isExclusive and setExclusive).
231 find() is new.
232
233
234 QColor:
235 -------
236 New type QRgb (uint), used for RGB triplet.
237
238
239 QLineEdit:
240 ----------
241 You can now mark text, and copy and paste to/from the clipboard.
242
243
244 QPaintDevice:
245 ---------
246 The bitblt function now takes an ignoreMask parameter. It has a default
247 value, so no old code will be broken.
248
249 QPrinter:
250 ------------
251 fixed minor bugs in handling of polygons and beziers.
252
253
254 QWidget:
255 --------
256 New protected virtual functions styleChange(), backgroundColorChange(),
257 backgroundPixmapChange(), paletteChange() and fontChange().
258 These functions are called from setStyle(), setBackgroundColor() etc.
259 You can reimplement them to if you need to know when widget properties
260 changed and to optimize updates.
261
262 The destroyed() signal has been moved to QObject.
263