https://github.com/swri-robotics/qt_metapackages

ROS metapackages that depend on the right version of Qt for your ROS distribution
https://github.com/swri-robotics/qt_metapackages

Last synced: about 18 hours ago
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ROS metapackages that depend on the right version of Qt for your ROS distribution

• Host: GitHub
• URL: https://github.com/swri-robotics/qt_metapackages
• Owner: swri-robotics
• Created: 2018-10-24T18:29:44.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2018-10-26T15:38:47.000Z (over 5 years ago)
• Last Synced: 2024-03-27T04:51:13.278Z (3 months ago)
• Language: CMake
• Size: 23.4 KB
• Stars: 0
• Watchers: 13
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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• awesome-ros-tools - qt_metapackages - contains ROS metapackages that are useful for depending on the right version of Qt depending on which distribution of ROS you are using.  (Development Tools / Qt)

README

        
Qt Metapackages

===============

This repository contains [ROS](http://www.ros.org/) [metapackages](http://wiki.ros.org/Metapackages)

that are useful for depending on the right version of Qt depending on which

distribution of ROS you are using.

Justification

-------------

[ROS Indigo](http://wiki.ros.org/indigo) and earlier use Qt 4, but 

[ROS Kinetic](http://wiki.ros.org/kinetic) and later on Ubuntu 16.04 and

later use Qt 5.  It is possible to write your CMakeLists.txt and C++ code in

such a way that they are compatible with both versions of Qt, the lack of

conditional dependencies in the 

[Catkin package.xml format](http://wiki.ros.org/catkin/package.xml) means

that you cannot have a single `package.xml` file that depends only on Qt 4

when building for ROS Indigo and Qt 5 when building for ROS Kinetic.  In some

cases, depending on [qt\_gui\_cpp](http://wiki.ros.org/qt_gui_cpp) is sufficient,

but that may include dependencies you do not want, and there are many Qt

libraries that it does not include.

This has lead to many packages with separate branches for Indigo and post-Indigo

development in which the only meaningful differences are in the `package.xml`

files, and keeping these branches synchronized is annoying and error-prone.

The metapackages provided by this repository depend on rosdep keys for each

platform that in turn depend on the appropriate Qt packages for that platform so

that your package can have a single branch that works for every ROS distribution.

Usage

-----

Just depend on the metapackage for the Qt library you want in your `package.xml`.

When running on Ubuntu 14.04 / ROS Indigo, it will transitively depend on the

equivalent Qt 4 package.  When running in Ubuntu 16.04 / ROS Kinetic or later,

it will transitively depend on the equivalent Qt 5 package.