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803 lines
46 KiB
803 lines
46 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/porting3.doc:36 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Porting to TQt 3.x</title>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Porting to TQt 3.x</h1>
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<p> This document describes porting applications from TQt 2.x to TQt 3.x.
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<p> The TQt 3.x series is not binary compatible with the 2.x series. This
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means programs compiled for TQt 2.x must be recompiled to work with TQt
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3.x. TQt 3.x is also not completely <em>source</em> compatible with 2.x,
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however all points of incompatibility cause compiler errors or
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run-time messages (rather than mysterious results). TQt 3.x includes
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many additional features and discards obsolete functionality. Porting
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from TQt 2.x to TQt 3.x is straightforward, and once completed makes
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the considerable additional power and flexibility of TQt 3.x available
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for use in your applications.
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<p> To port code from TQt 2.x to TQt 3.x:
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<p> <ol type=1>
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<p> <li> Briefly read the porting notes below to get an idea of what to expect.
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<li> Be sure your code compiles and runs well on all your target platforms
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with TQt 2.x.
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<li> Recompile with TQt 3.x. For each error, search below for related
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identifiers (e.g. function names, class names). This document
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mentions all relevant identifiers to help you get the information
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you need at the cost of being a little verbose.
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<li> If you get stuck, ask on the <a href="http://qt-interest.trolltech.com/">qt-interest</a> mailing list, or Trolltech Technical Support if
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you're a registered licensee.
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<p> </ol>
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<p> Table of contents:
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<p> <!-- toc -->
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<ul>
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<li><a href="#1"> Link Errors on Windows
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</a>
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<li><a href="#2"> Header file inclusion changes
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</a>
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<li><a href="#3"> Namespace
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</a>
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<li><a href="#4-1"> Removed Properties
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</a>
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<li><a href="#4-2"> Removed Functions
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</a>
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<li><a href="#5"> Obsoleted Functions
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</a>
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<li><a href="#6"> Collection Class Renaming
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</a>
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<li><a href="#7"> TQButtonGroup
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</a>
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<li><a href="#8"> TQDate
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</a>
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<li><a href="#9"> TQFileDialog
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</a>
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<li><a href="#10"> TQFont
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</a>
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<li><a href="#11"> TQInputDialog
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</a>
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<li><a href="#12"> TQLayout and Other Abstract Layout Classes
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</a>
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<li><a href="#13"> TQListViewItem
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</a>
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<li><a href="#14"> TQMoveEvent
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</a>
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<li><a href="#15"> TQMultiLineEdit
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</a>
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<li><a href="#16"> TQPrinter
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</a>
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<li><a href="#17"> TQRegExp
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</a>
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<ul>
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<li><a href="#17-1"> New special characters
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</a>
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<li><a href="#17-2"> TQRegExp::operator=()
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</a>
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<li><a href="#17-3"> TQRegExp::match()
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</a>
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<li><a href="#17-4"> TQRegExp::find()
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</a>
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<li><a href="#17-5"> TQString::findRev() and TQString::contains()
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</a>
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<li><a href="#17-6"> TQString::replace()
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</a>
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</ul>
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<li><a href="#18"> TQSemiModal
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</a>
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<li><a href="#19"> TQSortedList
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</a>
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<li><a href="#20"> TQTableView
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</a>
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<li><a href="#21"> TQToolButton
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</a>
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<li><a href="#22"> TQTextStream
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</a>
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<li><a href="#23"> TQTranslator
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</a>
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<li><a href="#24"> TQWidget
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</a>
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<li><a href="#25"> TQXml Classes
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</a>
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<ul>
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<li><a href="#25-1"> TQXmlInputSource
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</a>
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<li><a href="#25-2"> TQXmlLocator
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</a>
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</ul>
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<li><a href="#26"> Asynchronous I/O Classes
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</a>
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<li><a href="#27"> Transparent widgets
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</a>
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<li><a href="#28"> Bezier Curves
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</a>
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<li><a href="#29"> Locale-aware String Comparisons in TQIconView, TQListBox,
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TQListView and TQTable
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</a>
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</ul>
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<!-- endtoc -->
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<p> <a name="Linkerrors"></a>
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<h2> Link Errors on Windows
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</h2>
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<a name="1"></a><p> On Windows, originally in TQt 2.x, the default configuration of the TQt
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library is static. If you just use the default configuration you
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don't need to set certain preprocessor defines. In TQt 3.0, the
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default configuration of the TQt library is to build it as a shared
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library, therefore the preprocessor define <tt>QT_DLL</tt> is needed.
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<p> If you use tmake with TQt 2.x, and now use qmake with TQt 3.x, then the
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cause of the problem is with the project file. In the project file,
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there is usually line that looks like:
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<p> <tt>CONFIG</tt> = ...
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<p> this should be changed to
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<p> <tt>CONFIG</tt> += ...
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<p> so that qmake can look at the configuration that TQt was built with and
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set any relevant preprocessor defines in the makefile.
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<p> <a name="Headers"></a>
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<h2> Header file inclusion changes
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</h2>
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<a name="2"></a><p> TQt 3.x remove some unnecessary nested #include directives from
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header files. This speeds up compilation when you don't need those
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nested header files. But in some cases you will find you need to add
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an extra #include to your files.
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<p> For example, if you get a message about <a href="ntqstringlist.html">TQStringList</a> or its functions
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not being defined, then add <tt>#include <ntqstringlist.h></tt> at
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the top of the file giving the error.
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<p> Header files that you might need to add #include directives for include:
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<ul>
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<li> <tt><ntqcursor.h></tt>
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<li> <tt><ntqpainter.h></tt>
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<li> <tt><ntqpen.h></tt>
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<li> <tt><ntqstringlist.h></tt>
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<li> <tt><ntqregexp.h></tt>
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<li> <tt><ntqstrlist.h></tt>
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<li> <tt><ntqstyle.h></tt>
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<li> <tt><ntqvaluelist.h></tt>
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</ul>
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<p> <h2> Namespace
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</h2>
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<a name="3"></a><p> TQt 3.x is namespace clean. A few global identifiers that had been
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left in TQt 2.x have been discarded.
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<p> Enumeration <a href="ntqt.html#CursorShape-enum">TQt::CursorShape</a> and its values are now part of the
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special <a href="ntqt.html">TQt</a> class defined in ntqnamespace.h. If you get compilation
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errors about these being missing (unlikely, since most of your code will
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be in classes that inherit from the TQt namespace class), then apply
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the following changes:
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<p> <ul>
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<li> <tt>TQCursorShape</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::CursorShape</a>
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<li> <tt>ArrowCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::ArrowCursor</a>
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<li> <tt>UpArrowCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::UpArrowCursor</a>
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<li> <tt>CrossCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::CrossCursor</a>
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<li> <tt>WaitCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::WaitCursor</a>
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<li> <tt>IbeamCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::IbeamCursor</a>
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<li> <tt>SizeVerCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SizeVerCursor</a>
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<li> <tt>SizeHorCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SizeHorCursor</a>
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<li> <tt>SizeBDiagCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SizeBDiagCursor</a>
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<li> <tt>SizeFDiagCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SizeFDiagCursor</a>
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<li> <tt>SizeAllCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SizeAllCursor</a>
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<li> <tt>BlankCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::BlankCursor</a>
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<li> <tt>SplitVCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SplitVCursor</a>
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<li> <tt>SplitHCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::SplitHCursor</a>
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<li> <tt>PointingHandCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::PointingHandCursor</a>
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<li> <tt>BitmapCursor</tt> becomes <a href="ntqt.html#CursorShape-enum">TQt::BitmapCursor</a>
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</ul>
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<p> The names of some debugging macro variables have been changed. We have
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tried not to break source compatibility as much as possible. If you observe
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error messages on the UNIX console or the Windows debugging stream that were
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previously disabled, please check these macro variables:
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<p> <ul>
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<li> <tt>DEBUG</tt> becomes <tt>QT_DEBUG</tt>
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<li> <tt>NO_DEBUG</tt> becomes <tt>TQT_NO_DEBUG</tt>
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<li> <tt>NO_CHECK</tt> becomes <tt>TQT_NO_CHECK</tt>
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<li> <tt>CHECK_STATE</tt> becomes <tt>QT_CHECK_STATE</tt>
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<li> <tt>CHECK_RANGE</tt> becomes <tt>QT_CHECK_RANGE</tt>
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<li> <tt>CHECK_NULL</tt> becomes <tt>QT_CHECK_NULL</tt>
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<li> <tt>CHECK_MATH</tt> becomes <tt>QT_CHECK_MATH</tt>
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</ul>
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<p> The name of some debugging macro functions has been changed:
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<p> <ul>
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<li> <tt>ASSERT</tt> becomes <tt>Q_ASSERT</tt>
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</ul>
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<p> For the record, undocumented macro variables that are not part of the API
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have been changed:
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<p> <ul>
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<li> <tt>_OS_*_</tt> becomes <tt>Q_OS_*</tt>
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<li> <tt>_WS_*_</tt> becomes <tt>Q_WS_*</tt>
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<li> <tt>_CC_*_</tt> becomes <tt>Q_CC_*</tt>
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</ul>
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<p> <h2> Removed Properties
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</h2>
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<a name="4-1"></a><p> All these properties have been removed in TQt 3.x:
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<ul>
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<li> TQButton::autoResize
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<li> TQLineEdit::hasMarkedText. Use TQLineEdit::hasSelectedText instead.
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<li> TQLineEdit::markedText. Use TQLineEdit::selectedText instead.
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<li> TQToolButton::offIconSet. Use TQToolButton::iconSet instead.
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<li> TQToolButton::onIconSet. Use TQToolButton::iconSet instead.
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</ul>
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<p> <h2> Removed Functions
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</h2>
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<a name="4-2"></a><p> All these functions have been removed in TQt 3.x:
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<ul>
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<li> TQButton::autoResize() const
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<li> TQButton::setAutoResize(bool)
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<li> TQFont::charSet()
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<li> TQFont::setCharSet()
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<li> TQLineEdit::cursorLeft(bool mark, int steps = 1). Use TQLineEdit::cursorBackward() instead.
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<li> TQLineEdit::cursorRight(bool mark, int steps = 1). Use TQLineEdit::cursorForward() instead.
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<li> TQLineEdit::hasMarkedText() const. Use TQLineEdit::hasSelectedText() instead.
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<li> TQLineEdit::markedText() const. Use TQLineEdit::selectedText() instead.
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<li> TQLineEdit::repaintArea(int, int). Use TQLineEdit::update() instead.
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<li> TQMenuBar::setActItem()
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<li> TQMenuBar::setWindowsAltMode()
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<li> TQObject::initMetaObject()
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<li> TQPainter::drawQuadBezier()
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<li> TQPalette::normal(). Use TQPalette::active() instead.
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<li> TQPalette::setNormal(). Use TQPalette::setActive() instead.
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<li> TQPointArray::quadBezier()
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<li> TQRegExp::find()
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<li> TQSignal::block(bool b)
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<li> TQSignal::isBlocked() const
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<li> TQSignal::parameter() const. Use TQSignal::value() instead.
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<li> TQSignal::setParameter(int value). Use TQSignal::setValue() instead.
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<li> TQSpinBox::downButton()
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<li> TQSpinBox::upButton()
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<li> TQString::basicDirection()
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<li> TQString::visual()
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<li> TQStyle::set...() functions
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<li> TQStyle::drawArrow()
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<li> TQThread::postEvent(TQObject *receiver, TQEvent *event). Use TQApplication::postEvent() instead.
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<li> TQToolButton::iconSet(bool on) const
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<li> TQToolButton::offIconSet() const
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<li> TQToolButton::onIconSet() const
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<li> TQToolButton::setIconSet(const & set, bool on)
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<li> TQToolButton::setOffIconSet(const TQIconSet &)
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<li> TQToolButton::setOnIconSet(const TQIconSet &)
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<li> TQWidget::setFontPropagation()
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<li> TQWidget::setPalettePropagation()
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</ul>
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<p> Also, to avoid conflicts with <tt><iostream></tt>, the following three
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global functions have been renamed:
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<ul>
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<li> setw() (renamed qSetW())
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<li> setfill() (renamed qSetFill())
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<li> setprecision() (renamed qSetPrecision())
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</ul>
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<p> <h2> Obsoleted Functions
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</h2>
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<a name="5"></a><p> The following functions have been obsoleted in TQt 3.0. The
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documentation of each of these functions should explain how to
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replace them in TQt 3.0.
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<p> <b>Warning:</b> It is best to consult <a href="http://doc.trolltech.com/3.0/">http://doc.trolltech.com/3.0/</a>
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rather than the documentation supplied with TQt to obtain the latest
|
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information regarding obsolete functions and how to replace them in
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new code.
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<p> <ul>
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<li> <a href="ntqaccel.html#keyToString">TQAccel::keyToString</a>( <a href="ntqkeysequence.html">TQKeySequence</a> k )
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<li> <a href="ntqaccel.html#stringToKey">TQAccel::stringToKey</a>( const <a href="ntqstring.html">TQString</a> & s )
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<li> <a href="qactiongroup.html#insert">TQActionGroup::insert</a>( <a href="ntqaction.html">TQAction</a> *a )
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<li> <a href="qcanvasitem.html#active">TQCanvasItem::active</a>() const
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<li> <a href="qcanvasitem.html#enabled">TQCanvasItem::enabled</a>() const
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<li> <a href="qcanvasitem.html#selected">TQCanvasItem::selected</a>() const
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<li> <a href="qcanvasitem.html#visible">TQCanvasItem::visible</a>() const
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<li> <a href="qcanvaspixmaparray.html#TQCanvasPixmapArray">TQCanvasPixmapArray::TQCanvasPixmapArray</a>( <a href="ntqptrlist.html">TQPtrList</a><TQPixmap> list, TQPtrList<TQPoint> hotspots )
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<li> <a href="qcanvaspixmaparray.html#operator!">TQCanvasPixmapArray::operator!</a>()
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<li> <a href="qcolorgroup.html#TQColorGroup">TQColorGroup::TQColorGroup</a>( const <a href="ntqcolor.html">TQColor</a> & foreground, const TQColor & background, const TQColor & light, const TQColor & dark, const TQColor & mid, const TQColor & text, const TQColor & base )
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<li> <a href="ntqcombobox.html#autoResize">TQComboBox::autoResize</a>() const
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<li> <a href="ntqcombobox.html#setAutoResize">TQComboBox::setAutoResize</a>( bool )
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<li> <a href="qdate.html#dayName">TQDate::dayName</a>( int weekday )
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<li> <a href="qdate.html#monthName">TQDate::monthName</a>( int month )
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<li> <a href="ntqdir.html#encodedEntryList">TQDir::encodedEntryList</a>( const <a href="ntqstring.html">TQString</a> & nameFilter, int filterSpec = DefaultFilter, int sortSpec = DefaultSort ) const
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<li> TQDir::encodedEntryList( int filterSpec = DefaultFilter, int sortSpec = DefaultSort ) const
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<li> <a href="ntqdockwindow.html#isHorizontalStretchable">TQDockWindow::isHorizontalStretchable</a>() const
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<li> <a href="ntqdockwindow.html#isVerticalStretchable">TQDockWindow::isVerticalStretchable</a>() const
|
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<li> <a href="ntqdockwindow.html#setHorizontalStretchable">TQDockWindow::setHorizontalStretchable</a>( bool b )
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<li> <a href="ntqdockwindow.html#setVerticalStretchable">TQDockWindow::setVerticalStretchable</a>( bool b )
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<li> <a href="ntqfont.html#defaultFont">TQFont::defaultFont</a>()
|
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<li> <a href="ntqfont.html#setDefaultFont">TQFont::setDefaultFont</a>( const <a href="ntqfont.html">TQFont</a> & f )
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<li> <a href="ntqfont.html#setPixelSizeFloat">TQFont::setPixelSizeFloat</a>( float pixelSize )
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<li> <a href="ntqfontdatabase.html#bold">TQFontDatabase::bold</a>( const TQString & family, const TQString & style, const <a href="ntqstring.html">TQString</a> & ) const
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<li> <a href="ntqfontdatabase.html#families">TQFontDatabase::families</a>( bool ) const
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<li> <a href="ntqfontdatabase.html#font">TQFontDatabase::font</a>( const TQString & familyName, const TQString & style, int pointSize, const TQString & )
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<li> <a href="ntqfontdatabase.html#isBitmapScalable">TQFontDatabase::isBitmapScalable</a>( const TQString & family, const TQString & style, const TQString & ) const
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<li> <a href="ntqfontdatabase.html#isFixedPitch">TQFontDatabase::isFixedPitch</a>( const TQString & family, const TQString & style, const TQString & ) const
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<li> <a href="ntqfontdatabase.html#isScalable">TQFontDatabase::isScalable</a>( const TQString & family, const TQString & style, const TQString & ) const
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<li> <a href="ntqfontdatabase.html#isSmoothlyScalable">TQFontDatabase::isSmoothlyScalable</a>( const TQString & family, const TQString & style, const TQString & ) const
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<li> <a href="ntqfontdatabase.html#italic">TQFontDatabase::italic</a>( const <a href="ntqstring.html">TQString</a> & family, const TQString & style, const TQString & ) const
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<li> <a href="ntqfontdatabase.html#pointSizes">TQFontDatabase::pointSizes</a>( const TQString & family, const TQString & style, const TQString & )
|
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<li> <a href="ntqfontdatabase.html#smoothSizes">TQFontDatabase::smoothSizes</a>( const TQString & family, const TQString & style, const TQString & )
|
|
<li> <a href="ntqfontdatabase.html#styles">TQFontDatabase::styles</a>( const TQString & family, const TQString & ) const
|
|
<li> <a href="ntqfontdatabase.html#weight">TQFontDatabase::weight</a>( const TQString & family, const TQString & style, const TQString & ) const
|
|
<li> <a href="ntqlabel.html#autoResize">TQLabel::autoResize</a>() const
|
|
<li> <a href="ntqlabel.html#setAutoResize">TQLabel::setAutoResize</a>( bool enable )
|
|
<li> <a href="ntqlistbox.html#cellHeight">TQListBox::cellHeight</a>( int i ) const
|
|
<li> TQListBox::cellHeight() const
|
|
<li> <a href="ntqlistbox.html#cellWidth">TQListBox::cellWidth</a>() const
|
|
<li> <a href="ntqlistbox.html#findItem">TQListBox::findItem</a>( int yPos ) const
|
|
<li> <a href="ntqlistbox.html#inSort">TQListBox::inSort</a>( const <a href="qlistboxitem.html">TQListBoxItem</a> *lbi )
|
|
<li> TQListBox::inSort( const <a href="ntqstring.html">TQString</a> & text )
|
|
<li> <a href="ntqlistbox.html#itemYPos">TQListBox::itemYPos</a>( int index, int *yPos ) const
|
|
<li> <a href="ntqlistbox.html#numCols">TQListBox::numCols</a>() const
|
|
<li> <a href="ntqlistbox.html#totalHeight">TQListBox::totalHeight</a>() const
|
|
<li> <a href="ntqlistbox.html#totalWidth">TQListBox::totalWidth</a>() const
|
|
<li> <a href="qlistboxitem.html#current">TQListBoxItem::current</a>() const
|
|
<li> <a href="qlistboxitem.html#selected">TQListBoxItem::selected</a>() const
|
|
<li> <a href="ntqlistview.html#removeItem">TQListView::removeItem</a>( <a href="qlistviewitem.html">TQListViewItem</a> *item )
|
|
<li> <a href="qlistviewitem.html#removeItem">TQListViewItem::removeItem</a>( TQListViewItem *item )
|
|
<li> <a href="ntqmainwindow.html#addToolBar">TQMainWindow::addToolBar</a>( <a href="ntqdockwindow.html">TQDockWindow</a> *, Dock = DockTop, bool newLine = FALSE )
|
|
<li> TQMainWindow::addToolBar( TQDockWindow *, const TQString & label, Dock = DockTop, bool newLine = FALSE )
|
|
<li> <a href="ntqmainwindow.html#lineUpToolBars">TQMainWindow::lineUpToolBars</a>( bool keepNewLines = FALSE )
|
|
<li> <a href="ntqmainwindow.html#moveToolBar">TQMainWindow::moveToolBar</a>( TQDockWindow *, Dock = DockTop )
|
|
<li> TQMainWindow::moveToolBar( TQDockWindow *, Dock, bool nl, int index, int extraOffset = -1 )
|
|
<li> <a href="ntqmainwindow.html#removeToolBar">TQMainWindow::removeToolBar</a>( TQDockWindow *)
|
|
<li> <a href="ntqmainwindow.html#setToolBarsMovable">TQMainWindow::setToolBarsMovable</a>( bool )
|
|
<li> <a href="ntqmainwindow.html#toolBarPositionChanged">TQMainWindow::toolBarPositionChanged</a>( <a href="ntqtoolbar.html">TQToolBar</a> *)
|
|
<li> <a href="ntqmainwindow.html#toolBarsMovable">TQMainWindow::toolBarsMovable</a>() const
|
|
<li> <a href="ntqmessagebox.html#message">TQMessageBox::message</a>( const <a href="ntqstring.html">TQString</a> & caption, const TQString & text, const TQString & buttonText = <a href="ntqstring.html#TQString-null">TQString::null</a>, <a href="ntqwidget.html">TQWidget</a> *parent = 0, const char *= 0 )
|
|
<li> <a href="ntqmessagebox.html#query">TQMessageBox::query</a>( const TQString & caption, const TQString & text, const TQString & yesButtonText = TQString::null, const TQString & noButtonText = TQString::null, TQWidget *parent = 0, const char *= 0 )
|
|
<li> <a href="ntqmessagebox.html#standardIcon">TQMessageBox::standardIcon</a>( Icon icon, GUIStyle style )
|
|
<li> <a href="ntqregexp.html#match">TQRegExp::match</a>( const TQString & str, int index = 0, int *len = 0, bool indexIsStart = TRUE ) const
|
|
<li> <a href="ntqscrollview.html#childIsVisible">TQScrollView::childIsVisible</a>( TQWidget *child )
|
|
<li> <a href="ntqscrollview.html#showChild">TQScrollView::showChild</a>( TQWidget *child, bool show = TRUE )
|
|
<li> <a href="ntqsimplerichtext.html#draw">TQSimpleRichText::draw</a>( <a href="ntqpainter.html">TQPainter</a> *p, int x, int y, const <a href="ntqregion.html">TQRegion</a> & clipRegion, const <a href="qcolorgroup.html">TQColorGroup</a> & cg, const <a href="ntqbrush.html">TQBrush</a> *paper = 0 ) const
|
|
<li> <a href="ntqstring.html#ascii">TQString::ascii</a>() const
|
|
<li> <a href="ntqstring.html#data">TQString::data</a>() const
|
|
<li> <a href="ntqstring.html#setExpand">TQString::setExpand</a>( uint index, <a href="qchar.html">TQChar</a> c )
|
|
<li> <a href="ntqstyle.html#defaultFrameWidth">TQStyle::defaultFrameWidth</a>() const
|
|
<li> <a href="ntqstyle.html#scrollBarExtent">TQStyle::scrollBarExtent</a>() const
|
|
<li> <a href="ntqstyle.html#tabbarMetrics">TQStyle::tabbarMetrics</a>( const <a href="ntqwidget.html">TQWidget</a> *t, int & hf, int & vf, int & ov ) const
|
|
<li> <a href="ntqtabdialog.html#isTabEnabled">TQTabDialog::isTabEnabled</a>( const char *name ) const
|
|
<li> <a href="ntqtabdialog.html#selected">TQTabDialog::selected</a>( const <a href="ntqstring.html">TQString</a> & )
|
|
<li> TQTabDialog::selected( const TQString & tabLabel )
|
|
<li> <a href="ntqtabdialog.html#setTabEnabled">TQTabDialog::setTabEnabled</a>( const char *name, bool enable )
|
|
<li> <a href="ntqtextstream.html#TQTextStream">TQTextStream::TQTextStream</a>( TQString & str, int filemode )
|
|
<li> <a href="ntqtoolbar.html#TQToolBar">TQToolBar::TQToolBar</a>( const TQString & label, <a href="ntqmainwindow.html">TQMainWindow</a> *, ToolBarDock = DockTop, bool newLine = FALSE, const char *name = 0 )
|
|
<li> <a href="ntqtooltip.html#enabled">TQToolTip::enabled</a>()
|
|
<li> <a href="ntqtooltip.html#setEnabled">TQToolTip::setEnabled</a>( bool enable )
|
|
<li> <a href="ntqtranslator.html#find">TQTranslator::find</a>( const char *context, const char *sourceText, const char *comment = 0 ) const
|
|
<li> <a href="ntqtranslator.html#insert">TQTranslator::insert</a>( const char *context, const char *sourceText, const <a href="ntqstring.html">TQString</a> & translation )
|
|
<li> <a href="ntqtranslator.html#remove">TQTranslator::remove</a>( const char *context, const char *sourceText )
|
|
<li> <a href="quridrag.html#setFilenames">TQUriDrag::setFilenames</a>( const <a href="ntqstringlist.html">TQStringList</a> & fnames )
|
|
<li> <a href="ntqwidget.html#backgroundColor">TQWidget::backgroundColor</a>() const
|
|
<li> <a href="ntqwidget.html#backgroundPixmap">TQWidget::backgroundPixmap</a>() const
|
|
<li> <a href="ntqwidget.html#iconify">TQWidget::iconify</a>()
|
|
<li> <a href="ntqwidget.html#setBackgroundColor">TQWidget::setBackgroundColor</a>( const <a href="ntqcolor.html">TQColor</a> & c )
|
|
<li> <a href="ntqwidget.html#setBackgroundPixmap">TQWidget::setBackgroundPixmap</a>( const <a href="ntqpixmap.html">TQPixmap</a> & pm )
|
|
<li> <a href="ntqwidget.html#setFont">TQWidget::setFont</a>( const <a href="ntqfont.html">TQFont</a> & f, bool )
|
|
<li> <a href="ntqwidget.html#setPalette">TQWidget::setPalette</a>( const <a href="ntqpalette.html">TQPalette</a> & p, bool )
|
|
<li> <a href="ntqwizard.html#setFinish">TQWizard::setFinish</a>( <a href="ntqwidget.html">TQWidget</a> *, bool )
|
|
<li> <a href="qxmlinputsource.html#TQXmlInputSource">TQXmlInputSource::TQXmlInputSource</a>( <a href="ntqfile.html">TQFile</a> & file )
|
|
<li> TQXmlInputSource::TQXmlInputSource( <a href="ntqtextstream.html">TQTextStream</a> & stream )
|
|
<li> <a href="qxmlreader.html#parse">TQXmlReader::parse</a>( const <a href="qxmlinputsource.html">TQXmlInputSource</a> & input )
|
|
</ul>
|
|
<p> Additionally, these preprocessor directives have been removed:
|
|
<p> <ul>
|
|
<li> <tt>#define strlen tqstrlen</tt>
|
|
<li> <tt>#define strcpy qstrcpy</tt>
|
|
<li> <tt>#define strcmp qstrcmp</tt>
|
|
<li> <tt>#define strncmp tqstrncmp</tt>
|
|
<li> <tt>#define stricmp tqstricmp</tt>
|
|
<li> <tt>#define strnicmp tqstrnicmp</tt>
|
|
</ul>
|
|
<p> See the changes-3.0.0 document for an explanation of why this had to be done.
|
|
You might have been relying on the non-portable and unpredictable behavior
|
|
resulting from these directives. We strongly recommend that you either make
|
|
use of the safe qstr* variants directly or ensure that no 0 pointer is
|
|
passed to the standard C functions in your code base.
|
|
<p> <h2> Collection Class Renaming
|
|
</h2>
|
|
<a name="6"></a><p> The classes TQArray, TQCollection, TQList, TQListIterator, TQQueue, TQStack
|
|
and TQVector have been renamed as per the following table. The original
|
|
names are no longer avaialable.
|
|
<p> <center><table cellpadding="4" cellspacing="2" border="0">
|
|
<tr bgcolor="#a2c511"> <th valign="top">Old Name <th valign="top">New Name <th valign="top">New Header File
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQArray <td valign="top"><a href="ntqmemarray.html">TQMemArray</a> <td valign="top"><tt><ntqmemarray.h></tt>
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQCollection <td valign="top"><a href="ntqptrcollection.html">TQPtrCollection</a> <td valign="top"><tt><ntqptrcollection.h></tt>
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQList <td valign="top"><a href="ntqptrlist.html">TQPtrList</a> <td valign="top"><tt><ntqptrlist.h></tt>
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQListIterator <td valign="top"><a href="qptrlistiterator.html">TQPtrListIterator</a> <td valign="top"><tt><ntqptrlist.h></tt>
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQQueue <td valign="top"><a href="ntqptrqueue.html">TQPtrQueue</a> <td valign="top"><tt><ntqptrqueue.h></tt>
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQStack <td valign="top"><a href="ntqptrstack.html">TQPtrStack</a> <td valign="top"><tt><ntqptrstack.h></tt>
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQVector <td valign="top"><a href="ntqptrvector.html">TQPtrVector</a> <td valign="top"><tt><ntqptrvector.h></tt>
|
|
</table></center>
|
|
<p> <h2> <a href="ntqbuttongroup.html">TQButtonGroup</a>
|
|
</h2>
|
|
<a name="7"></a><p> In TQt 2.x, the function <a href="ntqbuttongroup.html#selected">TQButtonGroup::selected</a>() returns the selected
|
|
<em>radio</em> button (<a href="ntqradiobutton.html">TQRadioButton</a>). In TQt 3.0, it returns the selected <em>toggle</em> button (<a href="ntqbutton.html#toggleButton-prop">TQButton::toggleButton</a>), a more general concept.
|
|
This might affect programs that use TQButtonGroups that contain a
|
|
mixture of radio buttons and non-radio (e.g. <a href="ntqcheckbox.html">TQCheckBox</a>) toggle buttons.
|
|
<p> <h2> <a href="qdate.html">TQDate</a>
|
|
</h2>
|
|
<a name="8"></a><p> Two TQDate member functions that were virtual in TQt 2.0 are not virtual
|
|
in TQt 3.0. This is only relevant if you subclassed TQDate and
|
|
reimplemented these functions:
|
|
<p> <ul>
|
|
<li> <a href="ntqstring.html">TQString</a> <a href="qdate.html#monthName">TQDate::monthName</a>( int month ) const
|
|
<li> TQString <a href="qdate.html#dayName">TQDate::dayName</a>( int weekday ) const
|
|
</ul>
|
|
<p> In addition to no longer being virtual, TQDate::monthName() and
|
|
TQDate::dayName() have been renamed <a href="qdate.html#shortMonthName">TQDate::shortMonthName</a>() and
|
|
<a href="qdate.html#shortDayName">TQDate::shortDayName</a>() and have been made static (as they should had
|
|
been in the first place). The old names are still provided for source
|
|
compatibility.
|
|
<p> <h2> <a href="ntqfiledialog.html">TQFileDialog</a>
|
|
</h2>
|
|
<a name="9"></a><p> If the mode was not set explicitly, and the user entered a
|
|
non-existent file, the dialog would accept this. In TQt 3.x, you must
|
|
set the mode, e.g. setMode(TQFileDialog::AnyFile), to get the same
|
|
behavior.
|
|
<p> <h2> <a href="ntqfont.html">TQFont</a>
|
|
</h2>
|
|
<a name="10"></a><p> The internals of TQFont have changed significantly between TQt 2.2 and
|
|
TQt 3.0, to give better Unicode support and to make developing
|
|
internationalized applications easier. The original API has been
|
|
preserved with minimal changes. The CharSet enum and its related
|
|
functions have disappeared. This is because TQt now handles all charset
|
|
related issues internally, and removes this burden from the developer.
|
|
<p> If you used the CharSet enum or its related functions, e.g
|
|
TQFont::charSet() or TQFont::setCharSet(), just remove them from your
|
|
code. There are a few functions that took a TQFont::CharSet as a
|
|
parameter; in these cases simply remove the charset from the
|
|
parameter list.
|
|
<p> <h2> <a href="ntqinputdialog.html">TQInputDialog</a>
|
|
</h2>
|
|
<a name="11"></a><p> The two static getText(...) methods in TQInputDialog have been merged.
|
|
The <tt>echo</tt> parameter is the third parameter and defaults to
|
|
TQLineEdit::Normal.
|
|
<p> If you used calls to <a href="ntqinputdialog.html#getText">TQInputDialog::getText</a>(...) that provided more
|
|
than the first two required parameters you will must add a value
|
|
for the <tt>echo</tt> parameter.
|
|
<p> <h2> <a href="ntqlayout.html">TQLayout</a> and Other Abstract Layout Classes
|
|
</h2>
|
|
<a name="12"></a><p> The definitions of <a href="qglayoutiterator.html">TQGLayoutIterator</a>, <a href="ntqlayout.html">TQLayout</a>, <a href="qlayoutitem.html">TQLayoutItem</a>, <a href="qlayoutiterator.html">TQLayoutIterator</a>, <a href="qspaceritem.html">TQSpacerItem</a> and <a href="qwidgetitem.html">TQWidgetItem</a> have been moved from <tt><ntqabstractlayout.h></tt> to <tt><ntqlayout.h></tt>. The header <tt><ntqabstractlayout.h></tt> now includes <tt><ntqlayout.h></tt> for compatibility. It
|
|
might be removed in a future version.
|
|
<p> <h2> <a href="qlistviewitem.html">TQListViewItem</a>
|
|
</h2>
|
|
<a name="13"></a><p> The paintBranches() function in TQt 2.x had a GUIStyle parameter; this
|
|
has been dropped for TQt 3.x since GUI style is handled by the new
|
|
style engine (See <a href="ntqstyle.html">TQStyle</a>.)
|
|
<p> <h2> <a href="qmoveevent.html">TQMoveEvent</a>
|
|
</h2>
|
|
<a name="14"></a><p> In TQt 2.x, the function <a href="qmoveevent.html#pos">TQMoveEvent::pos</a>() returned the position of the
|
|
widget in its parent widget, including the window frame. In TQt 3.0,
|
|
it returns the new position of the widget, excluding window frame for
|
|
top level widgets.
|
|
<p> <h2> TQMultiLineEdit
|
|
</h2>
|
|
<a name="15"></a><p> The TQMultiLineEdit was a simple editor widget in previous TQt versions.
|
|
Since TQt 3.0 includes a new richtext engine, which also supports
|
|
editing, TQMultiLineEdit is obsolete. For the sake of compatibility
|
|
TQMultiLineEdit is still provided. It is now a subclass of <a href="ntqtextedit.html">TQTextEdit</a>
|
|
which wraps the old TQMultiLineEdit so that it is mostly source
|
|
compatible to keep old applications working.
|
|
<p> For new applications and when maintaining existing applications we
|
|
recommend that you use TQTextEdit instead of TQMultiLineEdit wherever
|
|
possible.
|
|
<p> Although most of the old TQMultiLineEdit API is still available, there
|
|
is one important difference. The old TQMultiLineEdit operated in terms
|
|
of lines, whereas TQTextEdit operates in terms of paragraphs. This is
|
|
because lines change all the time during wordwrap, whereas paragraphs
|
|
remain paragraphs. The consequence of this change is that functions
|
|
which previously operated on lines, e.g. numLines(), textLine(), etc.,
|
|
now work on paragraphs.
|
|
<p> Also the function getString() has been removed since it
|
|
published the internal data structure.
|
|
<p> In most cases, applications that used TQMultiLineEdit will continue to
|
|
work without problems. Applications that worked in terms of lines may
|
|
require some porting.
|
|
<p> The source code for the old 2.x version of TQMultiLineEdit can be found
|
|
in <tt>$TQTDIR/src/attic/qtmultilineedit.h/cpp</tt>. Note that the class has
|
|
been renamed to TQtMultiLineEdit to avoid name clashes. If you really
|
|
need to keep compatibility with the old TQMultiLineEdit, simply include
|
|
this class in your project and rename TQMultiLineEdit to
|
|
TQtMultiLineEdit throughout.
|
|
<p> <h2> <a href="ntqprinter.html">TQPrinter</a>
|
|
</h2>
|
|
<a name="16"></a><p> TQPrinter has undergone some changes, to make it more flexible and
|
|
to ensure it has the same runtime behaviour on both Unix and Windows. In 2.x,
|
|
TQPrinter behaved differently on Windows and Unix, when using view
|
|
transformations on the <a href="ntqpainter.html">TQPainter</a>. This has changed now, and TQPrinter
|
|
behaves consistently across all platforms. A compatibilty mode has been
|
|
added that forces the old behaviour, to ease porting from TQt 2.x
|
|
to TQt 3.x. This compatibilty mode can be enabled by passing the
|
|
TQPrinter::Compatible flag to the TQPrinter constructor.
|
|
<p> On X11, TQPrinter used to generate encapsulated postscript when
|
|
fullPage() was TRUE and only one page was printed. This does not
|
|
happen by default anymore, providing a more consistent printing output.
|
|
<p> <h2> <a href="ntqregexp.html">TQRegExp</a>
|
|
</h2>
|
|
<a name="17"></a><p> The <a href="ntqregexp.html">TQRegExp</a> class has been rewritten to support many of the features of Perl
|
|
regular expressions. Both the <a href="ntqregexp.html#regular-expression">regular expression</a> syntax and the TQRegExp
|
|
interface have been modified.
|
|
<p> Be also aware that <tt><ntqregexp.h></tt> is no longer included
|
|
automatically when you include <tt><ntqstringlist.h></tt>. See
|
|
<a href="#Headers">above</a> for details.
|
|
<p>
|
|
<p> <h3> New special characters
|
|
</h3>
|
|
<a name="17-1"></a><p> There are five new special characters: <tt>(</tt>, <tt>)</tt>, <tt>{</tt>,
|
|
<tt>|</tt> and <tt>}</tt> (parentheses, braces and pipe). When porting old
|
|
regular expressions, you must add <tt>\</tt> (backslash) in front of any
|
|
of these (actually, <tt>\\</tt> in C++ strings), unless it is already
|
|
there.
|
|
<p> Example: Old code like
|
|
<pre>
|
|
<a href="ntqregexp.html">TQRegExp</a> rx( "([0-9|]*\\)" ); // works in TQt 2.x
|
|
</pre>
|
|
|
|
should be converted into
|
|
<pre>
|
|
<a href="ntqregexp.html">TQRegExp</a> rx( "\\([0-9\\|]*\\)" ); // works in TQt 2.x and 3.x
|
|
</pre>
|
|
|
|
(Within character classes, the backslash is not necessary in front of certain
|
|
characters, e.g. <tt>|</tt>, but it doesn't hurt.)
|
|
<p> Wildcard patterns need no conversion. Here are two examples:
|
|
<pre>
|
|
<a href="ntqregexp.html">TQRegExp</a> wild( "(*.*)" );
|
|
wild.<a href="ntqregexp.html#setWildcard">setWildcard</a>( TRUE );
|
|
</pre>
|
|
|
|
<pre>
|
|
// TRUE as third argument means wildcard
|
|
<a href="ntqregexp.html">TQRegExp</a> wild( "(*.*)", FALSE, TRUE );
|
|
</pre>
|
|
|
|
However, when they are used, make sure to use <a href="ntqregexp.html#exactMatch">TQRegExp::exactMatch</a>()
|
|
rather than the obsolete <a href="ntqregexp.html#match">TQRegExp::match</a>(). TQRegExp::match(), like
|
|
TQRegExp::find(), tries to find a match somewhere in the target
|
|
string, while TQRegExp::exactMatch() tries to match the whole target
|
|
string.
|
|
<p> <h3> <a href="ntqregexp.html#operator-eq">TQRegExp::operator=</a>()
|
|
</h3>
|
|
<a name="17-2"></a><p> This function has been replaced by <a href="ntqregexp.html#setPattern">TQRegExp::setPattern</a>() in TQt 2.2.
|
|
Old code such as
|
|
<pre>
|
|
<a href="ntqregexp.html">TQRegExp</a> rx( "alpha" );
|
|
rx.<a href="ntqregexp.html#setCaseSensitive">setCaseSensitive</a>( FALSE );
|
|
rx.<a href="ntqregexp.html#setWildcard">setWildcard</a>( TRUE );
|
|
rx = "beta";
|
|
</pre>
|
|
|
|
still compiles with TQt 3, but produces a different result (the case sensitivity
|
|
and wildcard options are forgotten). This way,
|
|
<pre>
|
|
rx = "beta";
|
|
</pre>
|
|
|
|
is the same as
|
|
<pre>
|
|
rx = TQRegExp( "beta" );
|
|
</pre>
|
|
|
|
which is what one expects.
|
|
<p> <h3> TQRegExp::match()
|
|
</h3>
|
|
<a name="17-3"></a><p> The following function is now obsolete, as it has an unwieldy
|
|
parameter list and was poorly named:
|
|
<ul>
|
|
<li> bool <a href="ntqregexp.html#match">TQRegExp::match</a>( const <a href="ntqstring.html">TQString</a> & str, int index = 0,
|
|
int * len = 0, bool indexIsStart = TRUE ) const
|
|
</ul>
|
|
It will be removed in a future version of TQt. Its <a href="ntqregexp.html#match">documentation</a> explains how to replace it.
|
|
<p> <h3> TQRegExp::find()
|
|
</h3>
|
|
<a name="17-4"></a><p> This function was removed, after a brief appearance in TQt 2.2. Its
|
|
name clashed with <a href="ntqstring.html#find">TQString::find</a>(). Use <a href="ntqregexp.html#search">TQRegExp::search</a>() or <a href="ntqstring.html#find">TQString::find</a>() instead.
|
|
<p> <h3> <a href="ntqstring.html#findRev">TQString::findRev</a>() and <a href="ntqstring.html#contains">TQString::contains</a>()
|
|
</h3>
|
|
<a name="17-5"></a><p> <a href="ntqstring.html#findRev">TQString::findRev</a>()'s and <a href="ntqstring.html#contains">TQString::contains</a>()'s semantics have changed
|
|
between 2.0 and 3.0 to be more consistent with the other overloads.
|
|
<p> For example,
|
|
<pre>
|
|
TQString( "" ).contains( TQRegExp("") )
|
|
</pre>
|
|
|
|
returns 1 in TQt 2.0; it returns 0 in TQt 3.0. Also, "^" now really means
|
|
start of input, so
|
|
<pre>
|
|
TQString( "Heisan Hoppsan" ).contains( TQRegExp("^.*$") )
|
|
</pre>
|
|
|
|
returns 1, not 13 or 14.
|
|
<p> This change affect very few existing programs.
|
|
<p> <h3> <a href="ntqstring.html#replace">TQString::replace</a>()
|
|
</h3>
|
|
<a name="17-6"></a><p> With TQt 1.0 and 2.0, a <a href="ntqstring.html">TQString</a> is converted implicitly into a <a href="ntqregexp.html">TQRegExp</a>
|
|
as the first argument to TQString::replace():
|
|
<pre>
|
|
<a href="ntqstring.html">TQString</a> text = fetch_it_from_somewhere();
|
|
text.<a href="ntqstring.html#replace">replace</a>( TQString("[A-Z]+"), "" );
|
|
</pre>
|
|
|
|
With TQt 3.0, the compiler gives an error. The solution is to use a
|
|
TQRegExp cast:
|
|
<pre>
|
|
text.replace( TQRegExp("[A-Z]+"), "" );
|
|
</pre>
|
|
|
|
This change makes it possible to introduce a
|
|
TQString::replace(TQString, TQString) overload in a future version of TQt
|
|
without breaking source compatibility.
|
|
<p> <h2> TQSemiModal
|
|
</h2>
|
|
<a name="18"></a><p> The TQSemiModal class is now obsolete. You should call show() on a
|
|
modal dialog instead.
|
|
<p> <h2> TQSortedList
|
|
</h2>
|
|
<a name="19"></a><p> The TQSortedList class is now obsolete. Consider using a <a href="ntqdict.html">TQDict</a>, a <a href="ntqmap.html">TQMap</a>
|
|
or a plain <a href="ntqptrlist.html">TQPtrList</a> instead.
|
|
<p> <h2> TQTableView
|
|
</h2>
|
|
<a name="20"></a><p> The TQTableView class has been obsoleted and is no longer a part of the
|
|
TQt API. Either use the powerful <a href="ntqtable.html">TQTable</a> class or the simplistic
|
|
<a href="ntqgridview.html">TQGridView</a> in any new code you create. If you really need the old table
|
|
view for compatibility you can find it in <tt>$TQTDIR/src/attic/qttableview.{cpp,h}</tt>. Note that the class has been
|
|
renamed from TQTableView to TQtTableView to avoid name clashes. To use
|
|
it, simply include it in your project and rename TQTableView to
|
|
TQtTableView throughout.
|
|
<p> <h2> <a href="ntqtoolbutton.html">TQToolButton</a>
|
|
</h2>
|
|
<a name="21"></a><p> The <a href="ntqtoolbutton.html">TQToolButton</a> class used to distinguish between "on" and "off"
|
|
icons. In 3.0, this mechanism was moved into the <a href="ntqiconset.html">TQIconSet</a> class
|
|
(see <a href="ntqiconset.html#State-enum">TQIconSet::State</a>).
|
|
<p> The two TQToolButton::onIconSet and TQToolButton::offIconSet properties
|
|
have been removed, together with the following two functions as well.
|
|
<p> <ul>
|
|
<li> void TQToolButton::setIconSet ( const TQIconSet & set, bool on )
|
|
<li> TQIconSet TQToolButton::iconSet ( bool on ) const
|
|
</ul>
|
|
<p> New code should use the following functions instead:
|
|
<p> <ul>
|
|
<li> void <a href="ntqtoolbutton.html#setIconSet">TQToolButton::setIconSet</a>( const TQIconSet & set )
|
|
<li> TQIconSet <a href="ntqtoolbutton.html#iconSet">TQToolButton::iconSet</a>() const
|
|
</ul>
|
|
<p> <h2> <a href="ntqtextstream.html">TQTextStream</a>
|
|
</h2>
|
|
<a name="22"></a><p> The global TQTextStream manipulators setw(), setfill() and setprecison()
|
|
were renamed to qSetW(), qSetFill() and qSetPrecision() to avoid conflicts
|
|
with <tt><iostream.h></tt>. If you used them, you must rename the occurrences to
|
|
the new names.
|
|
<p> <h2> <a href="ntqtranslator.html">TQTranslator</a>
|
|
</h2>
|
|
<a name="23"></a><p> The <a href="ntqtranslator.html">TQTranslator</a> class was extended in TQt 2.2, and these extensions
|
|
lead to a new interface. This interface is used mainly by translation
|
|
tools (for example, <a href="linguist-manual.html">TQt
|
|
Linguist</a>). For source compatibility, no member function was
|
|
effectively removed. The <a href="ntqtranslator.html">TQTranslator</a> documentation points out
|
|
which functions are obsolete.
|
|
<p> This function is no longer virtual:
|
|
<p> <ul>
|
|
<li> <a href="ntqstring.html">TQString</a> <a href="ntqtranslator.html#find">TQTranslator::find</a>( const char * context,
|
|
const char * sourceText ) const
|
|
</ul>
|
|
<p> If you have a class that inherits TQTranslator and which reimplements
|
|
TQTranslator::find(), you should reimplement <a href="ntqtranslator.html#findMessage">TQTranslator::findMessage</a>() instead.
|
|
In fact, find() is now defined in terms of findMessage(). By doing the
|
|
conversion, you will also gain support for translator comments and for any
|
|
future extensions.
|
|
<p> <h2> <a href="ntqwidget.html">TQWidget</a>
|
|
</h2>
|
|
<a name="24"></a><p> <a href="ntqwidget.html#backgroundColor">TQWidget::backgroundColor</a>(), <a href="ntqwidget.html#setBackgroundColor">TQWidget::setBackgroundColor</a>(),
|
|
<a href="ntqwidget.html#backgroundPixmap">TQWidget::backgroundPixmap</a>() and <a href="ntqwidget.html#setBackgroundPixmap">TQWidget::setBackgroundPixmap</a>() have
|
|
often been the source of much confusion in previous releases. TQt 3.0
|
|
addresses this by obsoleting these functions and by replacing them
|
|
with eight new functions: <a href="ntqwidget.html#eraseColor">TQWidget::eraseColor</a>(),
|
|
<a href="ntqwidget.html#setEraseColor">TQWidget::setEraseColor</a>(), <a href="ntqwidget.html#erasePixmap">TQWidget::erasePixmap</a>(),
|
|
<a href="ntqwidget.html#setErasePixmap">TQWidget::setErasePixmap</a>(), <a href="ntqwidget.html#paletteBackgroundColor">TQWidget::paletteBackgroundColor</a>(),
|
|
<a href="ntqwidget.html#setPaletteBackgroundColor">TQWidget::setPaletteBackgroundColor</a>(),
|
|
<a href="ntqwidget.html#paletteBackgroundPixmap">TQWidget::paletteBackgroundPixmap</a>() and
|
|
<a href="ntqwidget.html#setPaletteBackgroundPixmap">TQWidget::setPaletteBackgroundPixmap</a>(). See their documentation for
|
|
details.
|
|
<p> <h2> TQXml Classes
|
|
</h2>
|
|
<a name="25"></a><p> <h3> <a href="qxmlinputsource.html">TQXmlInputSource</a>
|
|
</h3>
|
|
<a name="25-1"></a><p> The semantics of TQXmlInputSource has changed slightly. This change
|
|
only affects code that parses the same data from the same input source
|
|
multiple times. In such cases you must call
|
|
<a href="qxmlinputsource.html#reset">TQXmlInputSource::reset</a>() before the second call to
|
|
<a href="qxmlsimplereader.html#parse">TQXmlSimpleReader::parse</a>().
|
|
<p> So code like
|
|
<pre>
|
|
<a href="qxmlinputsource.html">TQXmlInputSource</a> source( &xmlFile );
|
|
<a href="qxmlsimplereader.html">TQXmlSimpleReader</a> reader;
|
|
...
|
|
reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
|
|
...
|
|
reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
|
|
</pre>
|
|
|
|
must be changed to
|
|
<pre>
|
|
<a href="qxmlinputsource.html">TQXmlInputSource</a> source( &xmlFile );
|
|
<a href="qxmlsimplereader.html">TQXmlSimpleReader</a> reader;
|
|
...
|
|
reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
|
|
...
|
|
source.<a href="qxmlinputsource.html#reset">reset</a>();
|
|
reader.<a href="qxmlsimplereader.html#parse">parse</a>( source );
|
|
</pre>
|
|
|
|
<p> <h3> <a href="qxmllocator.html">TQXmlLocator</a>
|
|
</h3>
|
|
<a name="25-2"></a><p> Due to some internal changes, it was necessary to clean-up the semantics of
|
|
TQXmlLocator: this class is now an abstract class. This shouldn't cause
|
|
any problems, since programmers usually used the TQXmlLocator that was
|
|
reported by <a href="qxmlcontenthandler.html#setDocumentLocator">TQXmlContentHandler::setDocumentLocator</a>(). If you used this
|
|
class in some other way, you must adjust your code to use the
|
|
TQXmlLocator that is reported by the
|
|
TQXmlContentHandler::setDocumentLocator() function.
|
|
<p> <h2> Asynchronous I/O Classes
|
|
</h2>
|
|
<a name="26"></a><p> TQASyncIO, TQDataSink, TQDataSource, TQIODeviceSource and TQDataPump were
|
|
used internally in previous versions of TQt, but are not used anymore.
|
|
They are now obsolete.
|
|
<p> <h2> Transparent widgets
|
|
</h2>
|
|
<a name="27"></a><p> In TQt 2.x, the AutoMask property was used to obtain a
|
|
transparent-looking widget. In general, this approach is slow and
|
|
processor hungry. TQt 3.0 uses the BackgroundOrigin which provides
|
|
vastly improved performance and more flexibility in most cases. The
|
|
few classes for which the AutoMask property is still the best approach
|
|
are <a href="ntqcheckbox.html">TQCheckBox</a>, <a href="ntqcombobox.html">TQComboBox</a>, <a href="ntqpushbutton.html">TQPushButton</a>, <a href="ntqradiobutton.html">TQRadioButton</a> and <a href="ntqtabwidget.html">TQTabWidget</a>.
|
|
<p> <h2> Bezier Curves
|
|
</h2>
|
|
<a name="28"></a><p> The function names for Bezier curves in <a href="ntqpainter.html">TQPainter</a> and <a href="ntqpointarray.html">TQPointArray</a> have
|
|
been corrected. They now properly reflect their cubic form instead of
|
|
a quadratic one. If you have been using either
|
|
TQPainter::drawQuadBezier() or TQPointArray::quadBezier() you must
|
|
replace these calls with
|
|
<ul>
|
|
<li> void <a href="ntqpainter.html#drawCubicBezier">TQPainter::drawCubicBezier</a>( const TQPointArray &, int index=0 ) and
|
|
<li> TQPointArray <a href="ntqpointarray.html#cubicBezier">TQPointArray::cubicBezier</a>() const
|
|
</ul>
|
|
respectively. Neither the arguments nor the resulting curve have changed.
|
|
<p> <h2> Locale-aware String Comparisons in <a href="ntqiconview.html">TQIconView</a>, <a href="ntqlistbox.html">TQListBox</a>,
|
|
<a href="ntqlistview.html">TQListView</a> and <a href="ntqtable.html">TQTable</a>
|
|
</h2>
|
|
<a name="29"></a><p> In TQt 2.x, <a href="ntqstring.html">TQString</a> only provided string comparisons using the Unicode
|
|
values of the characters of a string. This is efficient and reliable,
|
|
but it is not the appropriate order for most languages. For example,
|
|
French users expect 'é' (e acute) to be treated essentially as
|
|
'e' and not put after 'z'.
|
|
<p> In TQt 3.0, <a href="ntqstring.html#localeAwareCompare">TQString::localeAwareCompare</a>() implements locale aware
|
|
string comparisions on certain platforms. The classes <a href="ntqiconview.html">TQIconView</a>, <a href="ntqlistbox.html">TQListBox</a>, <a href="ntqlistview.html">TQListView</a> and <a href="ntqtable.html">TQTable</a> now use
|
|
TQString::localeAwareCompare() instead of <a href="ntqstring.html#compare">TQString::compare</a>(). If you
|
|
want to control the behaviour yourself you can always reimplement
|
|
<a href="qiconviewitem.html#compare">TQIconViewItem::compare</a>(), <a href="ntqlistbox.html#text">TQListBox::text</a>(), <a href="qlistviewitem.html#compare">TQListViewItem::compare</a>()
|
|
or <a href="qtableitem.html#key">TQTableItem::key</a>() as appropriate.
|
|
<p>
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|