| ## compile_resources |
| |
| *New in 0.59.0* |
| |
| Compiles Qt's resources collection files (.qrc) into c++ files for compilation. |
| |
| It takes no positional arguments, and the following keyword arguments: |
| - `name` (string | empty): if provided a single .cpp file will be generated, |
| and the output of all qrc files will be combined in this file, otherwise |
| each qrc file be written to it's own cpp file. |
| - `sources` (File | string | custom_target | custom_target index | generator_output)[]: |
| A list of sources to be transpiled. Required, must have at least one source |
| *New in 0.60.0*: support for custom_target, custom_target_index, and generator_output. |
| - `extra_args` string[]: Extra arguments to pass directly to `qt-rcc` |
| - `method` string: The method to use to detect qt, see `dependency()` for more |
| information. |
| |
| ## compile_ui |
| |
| *New in 0.59.0* |
| |
| Compiles Qt's ui files (.ui) into header files. |
| |
| It takes no positional arguments, and the following keyword arguments: |
| - `sources` (File | string | custom_target | custom_target index | generator_output)[]: |
| A list of sources to be transpiled. Required, must have at least one source |
| *New in 0.60.0*: support for custom_target, custom_target_index, and generator_output. |
| - `extra_args` string[]: Extra arguments to pass directly to `qt-uic` |
| - `method` string: The method to use to detect qt, see `dependency()` for more |
| information. |
| |
| ## compile_moc |
| |
| *New in 0.59.0* |
| |
| Compiles Qt's moc files (.moc) into header and/or source files. At least one of |
| the keyword arguments `headers` and `sources` must be provided. |
| |
| It takes no positional arguments, and the following keyword arguments: |
| - `sources` (File | string | custom_target | custom_target index | generator_output)[]: |
| A list of sources to be transpiled into .moc files for manual inclusion. |
| *New in 0.60.0*: support for custom_target, custom_target_index, and generator_output. |
| - `headers` (File | string | custom_target | custom_target index | generator_output)[]: |
| A list of headers to be transpiled into .cpp files |
| *New in 0.60.0*: support for custom_target, custom_target_index, and generator_output. |
| - `extra_args` string[]: Extra arguments to pass directly to `qt-moc` |
| - `method` string: The method to use to detect qt, see `dependency()` for more |
| information. |
| - `dependencies`: dependency objects whose include directories are used by moc. |
| - `include_directories` (string | IncludeDirectory)[]: A list of `include_directory()` |
| objects used when transpiling the .moc files |
| |
| ## preprocess |
| |
| Consider using `compile_resources`, `compile_ui`, and `compile_moc` instead. |
| |
| Takes sources for moc, uic, and rcc, and converts them into c++ files for |
| compilation. |
| |
| Has the following signature: `qt.preprocess(name: str | None, *sources: str)` |
| |
| If the `name` parameter is passed then all of the rcc files will be written to a single output file |
| |
| The variadic `sources` arguments have been deprecated since Meson 0.59.0, as has the `sources` keyword argument. These passed files unmodified through the preprocessor, don't do this, just add the output of the generator to another sources list: |
| ```meson |
| sources = files('a.cpp', 'main.cpp', 'bar.c') |
| sources += qt.preprocess(qresources : ['resources']) |
| ``` |
| |
| This method takes the following keyword arguments: |
| - `qresources` (string | File)[]: Passed to the RCC compiler |
| - `ui_files`: (string | File | CustomTarget)[]: Passed the `uic` compiler |
| - `moc_sources`: (string | File | CustomTarget)[]: Passed the `moc` compiler. These are converted into .moc files meant to be `#include`ed |
| - `moc_headers`: (string | File | CustomTarget)[]: Passied the `moc` compiler. These will be converted into .cpp files |
| - `include_directories` (IncludeDirectories | string)[], the directories to add to header search path for `moc` |
| - `moc_extra_arguments` string[]: any additional arguments to `moc`. Since v0.44.0. |
| - `uic_extra_arguments` string[]: any additional arguments to `uic`. Since v0.49.0. |
| - `rcc_extra_arguments` string[]: any additional arguments to `rcc`. Since v0.49.0. |
| - `dependencies` Dependency[]: dependency objects needed by moc. Available since v0.48.0. |
| - `sources`: a list of extra sources, which are added to the output unchanged. Deprecated in 0.59.0. |
| |
| It returns an array of targets and sources to pass to a compilation target. |
| |
| ## compile_translations (since v0.44.0) |
| |
| This method generates the necessary targets to build translation files with |
| lrelease, it takes no positional arguments, and the following keyword arguments: |
| |
| - `ts_files` (File | string | custom_target | custom_target index | generator_output)[]: |
| the list of input translation files produced by Qt's lupdate tool. |
| *New in 0.60.0*: support for custom_target, custom_target_index, and generator_output. |
| - `install` bool: when true, this target is installed during the install step (optional). |
| - `install_dir` string: directory to install to (optional). |
| - `build_by_default` bool: when set to true, to have this target be built by |
| default, that is, when invoking `meson compile`; the default value is false |
| (optional). |
| - `qresource` string: rcc source file to extract ts_files from; cannot be used |
| with ts_files kwarg. Available since v0.56.0. |
| - `rcc_extra_arguments` string[]: any additional arguments to `rcc` (optional), |
| when used with `qresource. Available since v0.56.0. |
| |
| Returns either: a list of custom targets for the compiled |
| translations, or, if using a `qresource` file, a single custom target |
| containing the processed source file, which should be passed to a main |
| build target. |
| |
| ## has_tools |
| |
| This method returns `true` if all tools used by this module are found, |
| `false` otherwise. |
| |
| It should be used to compile optional Qt code: |
| ```meson |
| qt5 = import('qt5') |
| if qt5.has_tools(required: get_option('qt_feature')) |
| moc_files = qt5.preprocess(...) |
| ... |
| endif |
| ``` |
| |
| This method takes the following keyword arguments: |
| - `required` bool | FeatureOption: by default, `required` is set to `false`. If `required` is set to |
| `true` or an enabled [`feature`](Build-options.md#features) and some tools are |
| missing Meson will abort. |
| - `method` string: method used to find the Qt dependency (`auto` by default). |
| |
| *Since: 0.54.0* |
| |
| ## Dependencies |
| |
| See [Qt dependencies](Dependencies.md#qt4-qt5) |
| |
| The 'modules' argument is used to include Qt modules in the project. |
| See the Qt documentation for the [list of |
| modules](http://doc.qt.io/qt-5/qtmodules.html). |
| |
| The 'private_headers' argument allows usage of Qt's modules private |
| headers. (since v0.47.0) |
| |
| ## Example |
| A simple example would look like this: |
| |
| ```meson |
| qt5 = import('qt5') |
| qt5_dep = dependency('qt5', modules: ['Core', 'Gui']) |
| inc = include_directories('includes') |
| moc_files = qt5.compile_moc(headers : 'myclass.h', |
| extra_arguments: ['-DMAKES_MY_MOC_HEADER_COMPILE'], |
| include_directories: inc, |
| dependencies: qt5_dep) |
| translations = qt5.compile_translations(ts_files : 'myTranslation_fr.ts', build_by_default : true) |
| executable('myprog', 'main.cpp', 'myclass.cpp', moc_files, |
| include_directories: inc, |
| dependencies : qt5_dep) |
| ``` |
| |
| Sometimes, translations are embedded inside the binary using qresource |
| files. In this case the ts files do not need to be explicitly listed, |
| but will be inferred from the built qm files listed in the qresource |
| file. For example: |
| |
| ```meson |
| qt5 = import('qt5') |
| qt5_dep = dependency('qt5', modules: ['Core', 'Gui']) |
| lang_cpp = qt5.compile_translations(qresource: 'lang.qrc') |
| executable('myprog', 'main.cpp', lang_cpp, |
| dependencies: qt5_dep) |
| ``` |