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<tool name="qt">
<summary>
Sets construction variables for building Qt applications.
</summary>
<sets>
QTDIR
QT_BINPATH
QT_CPPPATH
QT_LIBPATH
QT_MOC
QT_UIC
QT_LIB
QT_AUTOSCAN
QT_UICIMPLFLAGS
QT_UICDECLFLAGS
QT_MOCFROMHFLAGS
QT_MOCFROMCXXFLAGS
QT_UICDECLPREFIX
QT_UICDECLSUFFIX
QT_UICIMPLPREFIX
QT_UICIMPLSUFFIX
QT_MOCHPREFIX
QT_MOCHSUFFIX
QT_MOCCXXPREFIX
QT_MOCCXXSUFFIX
QT_UISUFFIX
QT_UICCOM
QT_MOCFROMHCOM
QT_MOCFROMCXXCOM
</sets>
<uses>
</uses>
</tool>

<builder name="Moc">
<summary>
Builds an output file from a moc input file. Moc input files are either
header files or cxx files. This builder is only available after using the
tool 'qt'. See the &cv-link-QTDIR; variable for more information.
Example:

<example>
env.Moc('foo.h') # generates moc_foo.cc
env.Moc('foo.cpp') # generates foo.moc
</example>
</summary>
</builder>

<builder name="Uic">
<summary>
Builds a header file, an implementation file and a moc file from an ui file.
and returns the corresponding nodes in the above order.
This builder is only available after using the tool 'qt'. Note: you can
specify <filename>.ui</filename> files directly as source
files to the &b-Program;,
&b-Library; and &b-SharedLibrary; builders
without using this builder. Using this builder lets you override the standard
naming conventions (be careful: prefixes are always prepended to names of
built files; if you don't want prefixes, you may set them to ``).
See the &cv-link-QTDIR; variable for more information.
Example:

<example>
env.Uic('foo.ui') # -> ['foo.h', 'uic_foo.cc', 'moc_foo.cc']
env.Uic(target = Split('include/foo.h gen/uicfoo.cc gen/mocfoo.cc'),
        source = 'foo.ui') # -> ['include/foo.h', 'gen/uicfoo.cc', 'gen/mocfoo.cc']
</example>
</summary>
</builder>

<cvar name="QTDIR">
<summary>
The qt tool tries to take this from os.environ.
It also initializes all QT_*
construction variables listed below.
(Note that all paths are constructed
with python's os.path.join() method,
but are listed here with the '/' separator
for easier reading.)
In addition, the construction environment
variables &cv-link-CPPPATH;,
&cv-link-LIBPATH; and
&cv-link-LIBS; may be modified
and the variables
&cv-link-PROGEMITTER;, &cv-link-SHLIBEMITTER; and &cv-link-LIBEMITTER;
are modified. Because the build-performance is affected when using this tool,
you have to explicitly specify it at Environment creation:

<example>
Environment(tools=['default','qt'])
</example>

The qt tool supports the following operations:

<emphasis Role="strong">Automatic moc file generation from header files.</emphasis>
You do not have to specify moc files explicitly, the tool does it for you.
However, there are a few preconditions to do so: Your header file must have
the same filebase as your implementation file and must stay in the same
directory. It must have one of the suffixes .h, .hpp, .H, .hxx, .hh. You
can turn off automatic moc file generation by setting QT_AUTOSCAN to 0.
See also the corresponding
&b-Moc();
builder method.

<emphasis Role="strong">Automatic moc file generation from cxx files.</emphasis>
As stated in the qt documentation, include the moc file at the end of
the cxx file. Note that you have to include the file, which is generated
by the transformation ${QT_MOCCXXPREFIX}&lt;basename&gt;${QT_MOCCXXSUFFIX}, by default
&lt;basename&gt;.moc. A warning is generated after building the moc file, if you
do not include the correct file. If you are using VariantDir, you may
need to specify duplicate=1. You can turn off automatic moc file generation
by setting QT_AUTOSCAN to 0. See also the corresponding
&b-Moc;
builder method.

<emphasis Role="strong">Automatic handling of .ui files.</emphasis>
The implementation files generated from .ui files are handled much the same
as yacc or lex files. Each .ui file given as a source of Program, Library or
SharedLibrary will generate three files, the declaration file, the
implementation file and a moc file. Because there are also generated headers,
you may need to specify duplicate=1 in calls to VariantDir.
See also the corresponding
&b-Uic;
builder method.
</summary>
</cvar>

<cvar name="QT_AUTOSCAN">
<summary>
Turn off scanning for mocable files. Use the Moc Builder to explicitly
specify files to run moc on.
</summary>
</cvar>

<cvar name="QT_BINPATH">
<summary>
The path where the qt binaries are installed.
The default value is '&cv-link-QTDIR;/bin'.
</summary>
</cvar>

<cvar name="QT_CPPPATH">
<summary>
The path where the qt header files are installed.
The default value is '&cv-link-QTDIR;/include'.
Note: If you set this variable to None,
the tool won't change the &cv-link-CPPPATH;
construction variable.
</summary>
</cvar>

<cvar name="QT_DEBUG">
<summary>
Prints lots of debugging information while scanning for moc files.
</summary>
</cvar>

<cvar name="QT_LIB">
<summary>
Default value is 'qt'. You may want to set this to 'qt-mt'. Note: If you set
this variable to None, the tool won't change the &cv-link-LIBS; variable.
</summary>
</cvar>

<cvar name="QT_LIBPATH">
<summary>
The path where the qt libraries are installed.
The default value is '&cv-link-QTDIR;/lib'.
Note: If you set this variable to None,
the tool won't change the &cv-link-LIBPATH;
construction variable.
</summary>
</cvar>

<cvar name="QT_MOC">
<summary>
Default value is '&cv-link-QT_BINPATH;/moc'.
</summary>
</cvar>

<cvar name="QT_MOCCXXPREFIX">
<summary>
Default value is ''. Prefix for moc output files, when source is a cxx file.
</summary>
</cvar>

<cvar name="QT_MOCCXXSUFFIX">
<summary>
Default value is '.moc'. Suffix for moc output files, when source is a cxx
file.
</summary>
</cvar>

<cvar name="QT_MOCFROMCXXFLAGS">
<summary>
Default value is '-i'. These flags are passed to moc, when moccing a
C++ file.
</summary>
</cvar>

<cvar name="QT_MOCFROMCXXCOM">
<summary>
Command to generate a moc file from a cpp file.
</summary>
</cvar>

<cvar name="QT_MOCFROMCXXCOMSTR">
<summary>
The string displayed when generating a moc file from a cpp file.
If this is not set, then &cv-link-QT_MOCFROMCXXCOM; (the command line) is displayed.
</summary>
</cvar>

<cvar name="QT_MOCFROMHCOM">
<summary>
Command to generate a moc file from a header.
</summary>
</cvar>

<cvar name="QT_MOCFROMHCOMSTR">
<summary>
The string displayed when generating a moc file from a cpp file.
If this is not set, then &cv-link-QT_MOCFROMHCOM; (the command line) is displayed.
</summary>
</cvar>

<cvar name="QT_MOCFROMHFLAGS">
<summary>
Default value is ''. These flags are passed to moc, when moccing a header
file.
</summary>
</cvar>

<cvar name="QT_MOCHPREFIX">
<summary>
Default value is 'moc_'. Prefix for moc output files, when source is a header.
</summary>
</cvar>

<cvar name="QT_MOCHSUFFIX">
<summary>
Default value is '&cv-link-CXXFILESUFFIX;'. Suffix for moc output files, when source is
a header.
</summary>
</cvar>

<cvar name="QT_UIC">
<summary>
Default value is '&cv-link-QT_BINPATH;/uic'.
</summary>
</cvar>

<cvar name="QT_UICCOM">
<summary>
Command to generate header files from .ui files.
</summary>
</cvar>

<cvar name="QT_UICCOMSTR">
<summary>
The string displayed when generating header files from .ui files.
If this is not set, then &cv-link-QT_UICCOM; (the command line) is displayed.
</summary>
</cvar>

<cvar name="QT_UICDECLFLAGS">
<summary>
Default value is ''. These flags are passed to uic, when creating a a h
file from a .ui file.
</summary>
</cvar>

<cvar name="QT_UICDECLPREFIX">
<summary>
Default value is ''. Prefix for uic generated header files.
</summary>
</cvar>

<cvar name="QT_UICDECLSUFFIX">
<summary>
Default value is '.h'. Suffix for uic generated header files.
</summary>
</cvar>

<cvar name="QT_UICIMPLFLAGS">
<summary>
Default value is ''. These flags are passed to uic, when creating a cxx
file from a .ui file.
</summary>
</cvar>

<cvar name="QT_UICIMPLPREFIX">
<summary>
Default value is 'uic_'. Prefix for uic generated implementation files.
</summary>
</cvar>

<cvar name="QT_UICIMPLSUFFIX">
<summary>
Default value is '&cv-link-CXXFILESUFFIX;'. Suffix for uic generated implementation
files.
</summary>
</cvar>

<cvar name="QT_UISUFFIX">
<summary>
Default value is '.ui'. Suffix of designer input files.
</summary>
</cvar>