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Diffstat (limited to 'src/corelib/doc/src/cmake/qt_add_resources.qdoc')
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diff --git a/src/corelib/doc/src/cmake/qt_add_resources.qdoc b/src/corelib/doc/src/cmake/qt_add_resources.qdoc new file mode 100644 index 0000000000..2e713b1b8e --- /dev/null +++ b/src/corelib/doc/src/cmake/qt_add_resources.qdoc @@ -0,0 +1,110 @@ +// Copyright (C) 2020 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only + +/*! +\page qt-add-resources.html +\ingroup cmake-commands-qtcore + +\title qt_add_resources +\keyword qt6_add_resources + +\summary {Compiles binary resources into source code.} + +\include cmake-find-package-core.qdocinc + +\section1 Synopsis + +\badcode +qt_add_resources(<VAR> file1.qrc [file2.qrc ...] + [OPTIONS ...]) +\endcode + +\versionlessCMakeCommandsNote qt6_add_resources() + +Since 6.0: + +\badcode +qt_add_resources(<TARGET> <RESOURCE_NAME> + [PREFIX <PATH>] + [LANG <LANGUAGE>] + [BASE <PATH>] + [BIG_RESOURCES] + [OUTPUT_TARGETS <VARIABLE_NAME>] + [FILES ...] [OPTIONS ...]) +\endcode + +\versionlessCMakeCommandsNote qt6_add_resources() + +\section1 Description + +To add resources, you can pass either a variable name or a target as the first +argument of the command. + +When passing a variable name as first argument, \c qt_add_resources creates +source code from Qt resource files using the \l{Resource Compiler (rcc)}. Paths +to the generated source files are added to \c{<VAR>}. + +When passing a target as first argument, the function creates a resource with +the name \c{RESOURCE_NAME}, containing the specified \c{FILES}. The resource is +automatically linked into \c{TARGET}. + +See \l{The Qt Resource System} for a general description of Qt resources. + +\section1 Arguments of the target-based variant + +\c PREFIX specifies a path prefix under which all files of this resource are +accessible from C++ code. This corresponds to the XML attribute \c prefix of the +\c .qrc file format. If \c PREFIX is not given, the target property +\l{cmake-target-property-QT_RESOURCE_PREFIX}{QT_RESOURCE_PREFIX} is used. Since +6.5, \c{PREFIX} is optional. If it is omitted and not specified by +\c{QT_RESOURCE_PREFIX}, \c{"/"} will be used as the default path prefix. + +\c LANG specifies the locale of this resource. This corresponds to the XML +attribute \c lang of the \c .qrc file format. + +\c BASE is a path prefix that denotes the root point of the file's alias. For +example, if \c BASE is \c{"assets"} and \c FILES is +\c{"assets/images/logo.png"}, then the alias of that file is +\c{"images/logo.png"}. + +Alias settings for files need to be set via the \c QT_RESOURCE_ALIAS source file +property. + +\c BIG_RESOURCES can be specified to enable support for big resources. This +directly generates object files (\c .o, \c .obj) instead of C++ source code. +This allows embedding bigger resources, without having to compile generated C++ +sources, which can be too time consuming and memory intensive. + +Note that \c BIG_RESOURCES is not compatible with iOS due to restrictions of +CMake's Xcode project generator. See +\l{https://bugreports.qt.io/browse/QTBUG-103497}{QTBUG-103497} for details. +Also, \c BIG_RESOURCES only works reliably from CMake 3.17 onwards. + +When using this command with static libraries, one or more special targets will +be generated. Should you wish to perform additional processing on these targets, +pass a variable name to the \c OUTPUT_TARGETS parameter. The \c qt_add_resources +function stores the names of the special targets in the specified variable. + +\section1 Arguments of both variants + +You can set additional \c{OPTIONS} that should be added to the \c{rcc} calls. +You can find possible options in the \l{rcc}{rcc documentation}. + +\section1 Examples + +Variable variant, using a .qrc file: +\snippet cmake-macros/examples.cmake qt_add_resources + +Target variant, using immediate resources: +\snippet cmake-macros/examples.cmake qt_add_resources_target + +\section1 Caveats + +When adding multiple resources, \c{RESOURCE_NAME} must be unique across all +resources linked into the final target. + +This especially affects static builds. There, the same resource name in +different static libraries conflict in the consuming target. + +\sa {qt6_add_big_resources}{qt_add_big_resources()} +*/ |