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1 Qt 4.1 introduces many new features as well as many improvements and |
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2 bugfixes over the 4.0.x series. For more details, see the online |
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3 documentation which is included in this distribution. The |
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4 documentation is also available at http://qt.nokia.com/doc/ |
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5 |
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6 The Qt version 4.1 series is binary compatible with the 4.0.x series. |
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7 Applications compiled for 4.0 will continue to run with 4.1. |
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8 |
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9 **************************************************************************** |
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10 * General * |
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11 **************************************************************************** |
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12 |
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13 Qt library |
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14 ---------- |
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15 |
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16 - Integrated support for rendering Scalable Vector Graphics (SVG) |
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17 drawings and animations (QtSvg module). |
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18 |
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19 - A Portable Document Format (PDF) backend for Qt's printing system. |
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20 |
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21 - A unit testing framework for Qt applications and libraries. |
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22 |
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23 - Modules for extending Qt Designer and dynamic user interface |
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24 building. |
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25 |
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26 - New proxy models to enable view-specific sorting and filtering of |
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27 data displayed using item views. |
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28 |
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29 - Additional features for developers using OpenGL, such as support |
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30 for pixel and sample buffers. |
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31 |
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32 - A flexible syntax highlighting class based on the Scribe rich text |
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33 framework. |
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34 |
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35 - Support for network proxy servers using the SOCKS5 protocol. |
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36 |
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37 - Support for OLE verbs and MIME data handling in ActiveQt. |
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38 |
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39 Qt Designer |
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40 ----------- |
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41 |
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42 - Added support for editing menu bars and tool bars. |
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43 |
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44 - Added support for adding comments to string properties. |
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45 |
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46 - Added new static QtForm library with improved |
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47 QForm::Loader API for loading designer forms at run-time. |
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48 |
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49 - Added support for namespaces in uic generated code. |
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50 |
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51 - Added support for dock widgets in main windows. |
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52 |
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53 - Added support for editing table, tree and list widgets. |
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54 |
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55 - Improved palette editing and resource support. |
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56 |
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57 QTestLib |
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58 -------- |
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59 |
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60 - Added QTestLib, the Qt Unit Testing Library. See the "QTestLib" chapter |
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61 in the Qt documentation for more information. |
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62 |
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63 - Users of older versions of QtTestLib can use the updater utility in |
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64 tools/qtestlib/updater to convert existing autotests to work with QTestLib. |
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65 |
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66 Boost |
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67 ----- |
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68 |
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69 Added boost compatible syntax for declaring signals and slots. If you |
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70 define the macro QT_NO_KEYWORDS "Q_SIGNALS" and "Q_SLOTS" are |
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71 recognized as keywords instead of the default "signals" and "slots". |
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72 |
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73 ActiveQt |
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74 -------- |
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75 |
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76 QAxServer now supports mime-type handling - a ActiveX control can be |
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77 registered to handle a certain file extension and mime-type, in which case |
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78 QAxBindable::load and QAxBindable::save can be reimplemented to serialize |
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79 the object. |
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80 |
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81 Build system |
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82 ------------ |
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83 |
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84 Added support for linking static plugins into the application. |
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85 |
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86 Qt 3 to 4 Porting Tool |
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87 ---------------------- |
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88 |
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89 Q(V|H)BoxLayout and QGridLayout usage is now ported to use |
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90 Q3(V|H)BoxLayout/Q3GridLayout, to retain the margin/spacing |
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91 behavior as in Qt 3. |
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92 |
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93 Meta Object Compiler (moc) |
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94 -------------------------- |
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95 |
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96 - Added support for const signals. |
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97 |
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98 Qt Assistant |
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99 ------------ |
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100 |
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101 - Added -docPath command line option for easy setting of the |
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102 document root path. |
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103 |
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104 QMake |
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105 ----- |
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106 |
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107 - Added support for new FORMS3 profile variable to make it possible |
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108 to have Qt Designer forms from Qt 3 and Qt 4 in the same project. |
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109 |
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110 - Added support for precompiled headers on win32-g++ (MinGW) |
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111 |
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112 Compilers |
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113 --------- |
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114 |
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115 Added support for Solaris 10 on AMD64 with the compiler provided by |
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116 Sun. |
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117 |
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118 |
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119 **************************************************************************** |
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120 * Library * |
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121 **************************************************************************** |
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122 |
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123 |
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124 New classes |
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125 ----------- |
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126 |
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127 - QTreeWidgetItemIterator |
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128 Added iterator to help iterating over items in a QTreeWidget. |
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129 |
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130 - QSortingProxyModel |
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131 The QSortingProxyModel can contain another model and handles |
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132 the sorting of it. |
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133 |
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134 - QFilteringProxyModel |
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135 Allows you to provide a subset of a model to a view. |
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136 |
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137 - QStringFilterModel |
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138 Allows you to provide a subset of a model to a view based on a |
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139 regular expression. |
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140 |
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141 - QSyntaxHighlighter |
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142 The QSyntaxHighlighter class allows you to define syntax |
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143 highlighting rules. |
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144 |
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145 - QAbstractFileEngine |
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146 A base class for implementing your own file and directory handling |
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147 back-end for QFile, QFileInfo and QDir. |
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148 |
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149 - QAbstractFileEngineHandler |
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150 For registering a QAbstractFileEngine subclass with Qt. |
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151 |
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152 - QFSFileEngine |
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153 The default file engine for regular file and directory access in Qt. |
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154 |
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155 - Q3(H|V)BoxLayout and Q3GridLayout |
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156 Layout classes provided for compatibility that behave the same |
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157 as the Qt 4 classes but use a zero margin/spacing by default, |
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158 just like in Qt 3. |
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159 |
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160 - Added qFromLittleEndian, qToLittleEndian, qFromBigEndian and |
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161 qToBigEndian endian helper conversion functions (qendian.h) |
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162 |
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163 - Q_EXPORT_PLUGIN2 macro |
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164 Obsoletes Q_EXPORT_PLUGIN and allows static linking of |
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165 plugins. |
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166 |
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167 - Q3ComboBox |
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168 For enhanced backwards compatibility with Qt 3. |
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169 |
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170 - QGLPbuffer |
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171 For creating and managing OpenGL pixel buffers. |
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172 |
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173 - QNetworkProxy |
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174 For setting up transparent (SOCKS5) networking proxying. |
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175 |
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176 - QDirectPainter (Qtopia Core only) |
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177 Provides direct access to video framebuffer hardware. |
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178 |
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179 |
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180 General improvements |
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181 -------------------- |
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182 |
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183 - QByteArray |
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184 Added toLong() and toULong(). |
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185 |
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186 - QFileDialog |
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187 Fix shortcut and focus for "Alpha channel" spinbox. |
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188 |
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189 - QLinkedList |
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190 Added conversion methods to convert from/to STL lists. |
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191 |
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192 - QMap/QHash |
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193 Fixed operator>>() to read back multiple values associated |
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194 to a same key correctly. |
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195 Added constFind(), for finding an item without causing a detach. |
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196 |
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197 - QMap/QHash |
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198 Const-correctness in const_iterator's operator--(int). |
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199 |
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200 - QMainWindow |
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201 The saveState() and restoreState() functions no longer |
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202 fallback to using the windowTitle property when the objectName |
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203 property is not set on a QToolBar or QDockWidget; this |
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204 behavior was undocumented and has been removed. |
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205 |
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206 - QToolBar |
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207 Added Qt 3 compatibility signal visibilityChanged(bool). |
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208 |
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209 - QMetaType |
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210 Class is now fully reentrant. |
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211 Metatypes can be registered or queried from multiple threads. |
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212 Added qMetaTypeId<T>(), which returns the meta type ID of T at compile time. |
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213 |
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214 - QMetaProperty |
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215 Added isResettable(). |
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216 |
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217 - QSql |
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218 Oracle plugin adds support for authentication using external credentials. |
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219 Added isValid() to QSqlError. |
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220 |
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221 - QThread |
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222 Added setPriority() and priority(), for querying and setting |
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223 the priority of a thread. |
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224 |
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225 - QTreeWidgetItem/QTreeWidget |
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226 Added new constructors and addChildren(), insertChildren(), |
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227 takeChildren(), insertTopLevelItems(), addTopLevelItems to |
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228 speed up insertion of multiple items. |
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229 |
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230 - QTextDocument |
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231 Added the class QTextBlockUserData and added the possibility |
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232 of storing a state or custom user data in a QTextBlock |
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233 Added useDesignMetrics property, to enable the use of design metrics for |
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234 all fonts in a QTextDocument. |
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235 |
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236 - QTextFormat |
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237 Added support for setting the font pixel size. |
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238 Added UserObject to QTextFormat::ObjectTypes enum. |
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239 |
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240 - QMetaType |
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241 The value of QMetaTypeId<T>::Defined indicates whether a given type T is |
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242 supported by QMetaType. |
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243 |
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244 - QAbstractItemView |
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245 Added setIndexWidget() and indexWidget() which makes it |
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246 possible to set a widget at a given index. |
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247 |
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248 Added a QAbstractItemView::ContiguousSelection mode. |
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249 Added scrollToTop() and scrollToBottom(). |
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250 |
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251 - QAbstractItemModel |
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252 Added a SizeHintRole that can be set for each item. The item |
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253 delegate will now check for this value before computing the |
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254 size hint based on other item data. |
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255 |
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256 Add QModelIndex::operator<() so we are able to use them in |
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257 QMap and other containers. |
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258 |
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259 Added qHash function for QModelIndex. |
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260 |
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261 - QTableWidget |
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262 Added cellWidget() and setCellWidget() which makes it possible |
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263 to set a widget at a specified cell. |
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264 |
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265 Added setCurrentCell(). |
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266 |
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267 Added QTableWidgetItem copy constructors. |
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268 |
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269 |
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270 - QTreeWidget |
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271 Added setItemWidget() and itemWidget() which makes it possible |
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272 to set a widget on an item. |
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273 |
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274 - QListWidget |
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275 Added setItemWidget() and itemWidget() which makes it possible |
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276 to set a widget on an item. |
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277 |
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278 Added QListWidgetItem copy constructors. |
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279 |
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280 - QMutableMapIterator |
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281 Added value() overloads to Java-style iterators that return |
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282 non-const references. |
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283 |
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284 - QTextTable |
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285 Added mergeCells() and splitCells() to be able to set the row |
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286 or column span on a table cell. |
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287 |
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288 - QStyle |
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289 Added standardIcon() which returns a default icon for standard |
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290 operations. |
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291 Added State_ReadOnly, which is enabled for read-only widgets. |
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292 |
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293 Renamed QStyleOption::init() to initFrom(). |
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294 - QGroupBox is now completely stylable (QStyleOptionGroupBox) |
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295 - Indeterminate (busy) progress bars are now animated properly |
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296 in all styles. |
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297 |
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298 Added PM_DockWidgetTitleMargin as pixel metric. |
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299 |
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300 - QHash |
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301 Make it possible to use QHash with a type that has no default |
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302 constructor. |
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303 |
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304 - QTableView |
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305 Made QTableView::setShowGrid() a slot, like in Qt 3. |
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306 Added setRowHeight() and setColumnWidth(). |
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307 |
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308 - QTableWidgetSelectionRange |
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309 Added rowCount() and columnCount() convenience functions. |
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310 |
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311 - QSettings |
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312 Added support for custom formats in QSettings. |
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313 |
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314 - QTextStream |
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315 Added status(), setStatus() and resetStatus() for improved error handling. |
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316 Added read(qint64 maxlen), for reading parts of a text stream into a |
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317 QString. |
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318 |
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319 - QTextCursor |
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320 Added support for BlockUnderCursor selection type. |
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321 |
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322 - QHeaderView |
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323 Added defaultSectionSize property which tells the default size |
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324 of the header sections before resizing. |
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325 |
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326 - QScrollBar |
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327 Added context menu to the scrollbar with default navigation |
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328 options. |
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329 |
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330 - QScrollArea |
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331 Added ensureVisible(), which can scroll the scrollarea to make sure a |
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332 specific point is visible. |
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333 |
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334 - QDateTime |
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335 Added addMSecs(), which adds a number of milliseconds to the QDateTime. |
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336 |
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337 - QDateTimeEdit |
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338 Added support for more date/time formats. |
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339 Now allows multiple sections of the same type. |
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340 |
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341 - QButtonGroup |
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342 Added handling of buttons with IDs to the buttongroup like in |
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343 Qt 3. |
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344 |
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345 - QIODevice |
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346 Added peek() for peeking data from a device. |
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347 |
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348 - QTextEdit |
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349 Added property tabStopWidth which sets the tab stop width in |
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350 pixels. |
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351 append(const QString &) is now a public slot. |
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352 Added support for inserting Unicode control characters through the |
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353 context menu. |
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354 Added property acceptRichText, for whether or not the text edit |
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355 accepts rich text insertions by the user. |
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356 Added overwriteMode property. |
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357 |
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358 - QDataStream |
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359 Added skipRawData(). |
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360 Added support for QRegExp. |
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361 |
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362 - QProgressBar |
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363 Added support for vertical progress bars. |
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364 |
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365 - QImageIOHandler |
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366 The name() function has been obsoleted; use format() instead. |
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367 Added QImageIOHandler::Animation, for determining if the image format |
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368 supports animation. |
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369 Added QImageIOHandler::BackgroundColor, for setting the background |
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370 color for the image loader. |
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371 |
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372 - QImageReader |
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373 Added setBackgroundColor() and backgroundColor(), for setting the |
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374 background color of an image before it is read. |
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375 Added supportsAnimation(), for checking if the image format supports |
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376 animation. |
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377 |
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378 - QImageWriter |
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379 Added support for saving image text. |
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380 |
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381 - QLocale |
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382 Added dateFormat()/timeFormat() to query the date/time format for the |
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383 current locale. |
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384 Added toString() overloads for localized QTime and QDate output. |
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385 Added decimalPoint(), groupSeparator(), percent(), zeroDigit(), |
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386 negativeSign() and exponential(), which provide a means to generate |
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387 custom number formatting. |
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388 |
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389 - QHostInfo |
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390 Added support for reverse name lookups. |
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391 |
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392 - QHostAddress |
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393 Added a QString assignment operator |
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394 Added convenience functions for initializing from a native sockaddr |
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395 structure. |
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396 Added support for the IPv6 scope-id. |
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397 |
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398 - QPrinter |
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399 Added property "embedFonts" for embedding fonts into the target |
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400 document. |
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401 Added support for printing to PDF. |
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402 Added support for custom print and paint engines |
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403 |
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404 - QPrintEngine |
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405 Added PPK_SuppressSystemPrintStatus, for suppressing the printer |
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406 progress dialog on Mac OS X. |
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407 |
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408 - QKeySequence |
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409 Added fromString() and toString() for initializing a key sequence |
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410 from, and exporting a key sequence to a QString. |
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411 |
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412 - QUrl |
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413 Added the port(int) function, which provides a default value for the |
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414 port if the URL does not define a port. |
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415 Support for decoding Punycode encoded hostnames in URLs. |
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416 Made the parser more tolerant for mistakes, and added a ParsingMode |
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417 flag for selecting strict or tolerant parsing. |
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418 Added support for the NAMEPREP standard in our i18n domain name support. |
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419 |
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420 - QDir |
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421 Added the filter QDir::NoDotAndDotDot, for the |
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422 special directories "." and "..". |
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423 Added the filter QDir::AllEntries, for all entries |
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424 in a directory, including symlinks. |
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425 |
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426 |
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427 - QAbstractSocket |
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428 Added slots connectToHostImplementation() and |
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429 disconnectFromHostImplementation() to provide polymorphic behavior for |
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430 connectToHost() and disconnectFromHost(). |
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431 |
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432 - QMenuBar |
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433 Added setActiveAction(), which makes the provided action |
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434 active. |
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435 |
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436 - QProxyModel |
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437 This class has been obsoleted (see QAbstractProxyModel) |
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438 |
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439 - QWidget |
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440 Now supports three modes of modality: NonModal, WindowModal and |
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441 ApplicationModal. |
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442 Added Qt::WindowModality, obsoleted WA_ShowModal and WA_GroupLeader. |
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443 Added Qt::WA_OpaquePaintEvent widget attribute, obsoleting Qt::WA_NoBackground. |
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444 Added boolean autoFillBackground property. |
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445 Child widgets now always inherit the contents of their parent. |
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446 |
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447 - QPalette |
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448 Added QPalette::Window (obsoletes Background) and |
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449 QPalette::WindowText (obsoletes Foreground). |
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450 |
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451 - QHttpResponseHeader |
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452 Added two constructors and the function setStatusLine() for generating |
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453 a response header. |
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454 |
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455 - QBitArray |
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456 Added count(bool), for counting on and off-bits in a bit array. |
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457 |
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458 - QVariant |
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459 Added support for QRegExp |
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460 |
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461 - QRegExpValidator |
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462 Added the property "regExp". |
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463 |
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464 - QTabBar |
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465 Added the property "iconSize", for setting the size of the icons on |
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466 the tabs. |
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467 |
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468 - QLineEdit |
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469 Added support for inserting Unicode control characters through the |
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470 context menu. |
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471 |
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472 - QString |
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473 Added toLong() and toULong(). |
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474 Support for std::string conversions with embedded \0 characters. |
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475 |
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476 - QRegion |
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477 Added translate(), like QRect::translated(). |
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478 |
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479 - QProcess |
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480 Added systemEnvironment(), which returns the environment variables |
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481 of the calling process. |
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482 Added exitStatus(), and added a new finished() signal which takes the |
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483 exit status as a parameter. |
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484 |
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485 - QComboBox |
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486 Made setCurrentIndex() a slot. |
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487 |
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488 - QFontDataBase |
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489 Added styleString(), for retrieving the style string from a QFontInfo. |
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490 Added support for Myanmar fonts. |
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491 |
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492 - QFontMetrics |
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493 Added xHeight(), which returns the 'X' height of the font. |
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494 |
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495 - QCoreApplication |
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496 Added arguments(), which returns a list of command line arguments as a |
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497 QStringList. |
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498 |
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499 - QTcpSocket |
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500 Added support for SOCKS5 via setProxy(). |
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501 |
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502 - QUdpSocket |
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503 Added property "bindMode", for binding several sockets to the same |
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504 address and port. |
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505 |
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506 - QPen |
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507 Added support for custom dash pattern styles and miter limits. |
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508 Added support for QDebug. |
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509 |
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510 - QDebug |
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511 Added support for QVector and QPair output. |
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512 |
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513 - QStringListModel |
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514 Added support for sorting. |
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515 |
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516 - QOpenGLPaintEngine |
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517 Gradients in the OpenGL paint engine are now drawn using |
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518 fragment programs, if the extension is available. Lots of |
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519 fixes, speedups and tweaks. |
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520 |
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521 |
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522 Platform-Specific changes |
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523 ------------------------- |
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524 |
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525 Windows: |
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526 |
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527 - Painting |
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528 Added support for ClearType text rendering. |
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529 |
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530 - File Engine |
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531 Added support for long filenames/paths. |
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532 |
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533 X11: |
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534 |
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535 - QWidget |
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536 Added support for freedesktop.org startup notifications. |
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537 |
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538 Mac OS X: |
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539 |
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540 - Improved support for the VoiceOver accessibility tool in Mac OS 10.4 |
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541 and later |
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542 |
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543 |
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544 3rd-party libraries |
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545 ------------------- |
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546 |
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547 - zlib |
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548 Upgraded to zlib 1.2.3. |
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549 |
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550 - FreeType |
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551 Upgraded to FreeType 2.1.10. |
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552 |
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553 - SQLite |
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554 Upgraded to SQLite 3.2.7 |