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.TH "qwtinstall" 3 "22 Mar 2009" "Qwt User's Guide" \" -*- nroff -*-
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Qwt uses qmake to build all its components and examples.
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qmake is part of a Qt distribution.
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qmake reads project files, that contain the options and rules how to
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build a certain project. A project file ends with the suffix '*.pro'.
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Files that end with the suffix '*.pri' are included by the project
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files and contain definitions, that are common for several project files.
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qwtconfig.pri is read by all project files of the Qwt package.
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So the first step is to edit qwtconfig.pri to adjust it to your
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Qwt/Qt4 supports the MathML render engine from the Qt solutions package,
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that is only available with a commercial Qt license.
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You need a release of qtmmlwidget >= 2.1.
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Copy the files qtmmlwidget.[cpp|h] to textengines/mathml.
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==========================
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Qwt includes a class documentation, that is available in various formats:
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- Qt Compressed Help (*.qch ) for the Qt assistant.
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- Man pages ( UNIX only )
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==========================
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If you have installed a shared library it's path has to be known to
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the run-time linker of your operating system. On Linux systems read
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'man ldconfig' ( or google for it ). Another option is to use
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the LD_LIBRARY_PATH (on some systems LIBPATH is used instead, on MacOSX
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it is called DYLD_LIBRARY_PATH) environment variable.
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If you only want to check the Qwt examples without installing something,
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you can set the LD_LIBRARY_PATH to the lib directory
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If you didn't enable autobuilding of the examples in qwtconfig.pri
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you have to build the examples this way:
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Please read the qmake documentation how to convert
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your *.pro files into your development environment.
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If you didn't enable autobuilding of the examples in qwtconfig.pri
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you have to build the examples this way:
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admin/msvc-qmake.bat helps users of Visual Studio users to
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generate makefiles or project files (.dsp for MSVC-6.0 or vcproj for
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To generate makefiles, type: 'admin\msvc-qmake'
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To generate project files, type: 'admin\msvc-qmake vc'
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When you have built a Qwt DLL you need to add the following
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define to your compiler flags: QWT_DLL.
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Windows doesn't like mixing of debug and release binaries. Most
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of the problems with using the Qwt designer plugin are because
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of trying to load a Qwt debug library into a designer release
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Start a Windows Shell, where Qt4 is initialized. ( F.e. with
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'Programs->Qt by Trolltech ...->Qt 4.x.x Command Prompt' ).
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If you didn't enable autobuilding of the examples in qwtconfig.pri
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you have to build the examples this way:
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C2) MSYS Shell Qt >= 4.3.0
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Support for the MSYS Shell has been improved in Qt 4.3.0.
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Now building Qwt from the MSYS Shell works exactly like in UNIX or in the
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Windows Shell - or at least it should:
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because of a bug in Qt 4.3.0 you always have to do a 'qmake -r'.
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C3) MSYS Shell Qt < 4.3.0
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For Qt < 4.3.0 you have to set the MINGW_IN_SHELL variable.
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make will run into errors with the subdirs target, that can be
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export MINGW_IN_SHELL=1;
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If you didn't enable autobuilding of the examples in qwtconfig.pri
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you have to build the examples this way:
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When you have built a Qwt DLL you need to add QWT_DLL to your compiler
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flags. If you are using qmake for your own builds this done by adding
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the following line to your profile: 'DEFINES += QWT_DLL'.
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Windows doesn't like mixing of debug and release binaries. Most
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of the problems with using the Qwt designer plugin are because
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of trying to load a Qwt debug library into a designer release
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Well, the Mac is only another Unix system. So read the instructions in A).
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In the recent Qt4 releases the default target of qmake is to generate
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XCode project files instead of makefiles. So you might need to do the
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I only tested Qwt with Qtopia Core in qvfb (Virtual Framebuffer Devivce)
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Emulator on my Linux box. To build Qwt for the emulator was as simple as
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for a regular Unix build.
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E) Qtopia (!= Qtopia Core)
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I once compiled the Qwt library against Qtopia 4.2.0 successfully - but
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not more. It should be possible to build and install Qwt, but it's