Merge branch 'wip/trackpoint-acceleration'

diff --cc doc/meson.build
index 39b0cde,0000000..a42a2e0
mode 100644,000000..100644
--- 1/doc/meson.build
--- /dev/null
+++ b/doc/meson.build
@@@ -1,139 -1,0 +1,140 @@@
 +prg_install = find_program('install')
 +
 +doxygen = find_program('doxygen', required : false)
 +if not doxygen.found()
 +      error('Program "doxygen" not found or not executable. Try building with -Ddocumentation=false')
 +endif
 +dot = find_program('dot', required : false)
 +if not dot.found()
 +      error('Program "dot" not found or not executable. Try building with -Ddocumentation=false')
 +endif
 +
 +doxygen_version_cmd = run_command(doxygen.path(), '--version')
 +if doxygen_version_cmd.returncode() != 0
 +      error('Command "doxygen --version" failed.')
 +endif
 +doxygen_version = doxygen_version_cmd.stdout()
 +if doxygen_version.version_compare('< 1.8.3')
 +      error('doxygen needs to be at least version 1.8.3 (have @0@)'.format(doxygen_version))
 +endif
 +grep = find_program('grep')
 +dot_version_cmd = run_command(dot.path(), '-V')
 +if dot_version_cmd.returncode() != 0
 +      error('Command "dot -V" failed.')
 +endif
 +# dot -V output is (to stderr):
 +#     dot - graphviz version 2.38.0 (20140413.2041)
 +dot_version = dot_version_cmd.stderr().split(' ')[4]
 +if dot_version.version_compare('< 2.26')
 +      error('Graphviz dot needs to be at least version 2.26 (have @0@)'.format(dot_version))
 +endif
 +
 +readme = vcs_tag(command : ['git', 'log', '-1', '--format=%h'],
 +               fallback : 'unknown',
 +               input : '../README.md',
 +               output : 'README.md',
 +               replace_string: '__GIT_VERSION__')
 +
 +src_doxygen = files(
 +      # source files
 +      '../src/libinput.h',
 +      # written docs
 +      'absolute-axes.dox',
 +      'absolute-coordinate-ranges.dox',
 +      'architecture.dox',
 +      'building.dox',
 +      'button_debouncing.dox',
 +      'clickpad-softbuttons.dox',
 +      'contributing.dox',
 +      'device-configuration-via-udev.dox',
 +      'device-quirks.dox',
 +      'faqs.dox',
 +      'gestures.dox',
 +      'middle-button-emulation.dox',
 +      'normalization-of-relative-motion.dox',
 +      'palm-detection.dox',
 +      'page-hierarchy.dox',
 +      'pointer-acceleration.dox',
 +      'reporting-bugs.dox',
 +      'scrolling.dox',
 +      'seats.dox',
 +      'switches.dox',
 +      't440-support.dox',
 +      'tablet-support.dox',
 +      'tapping.dox',
 +      'test-suite.dox',
 +      'timestamps.dox',
 +      'tools.dox',
 +      'touchpad-jumping-cursors.dox',
 +      'touchpad-pressure.dox',
 +      'touchpad-jitter.dox',
 +      'touchpads.dox',
 +      'trackpoints.dox',
 +      'what-is-libinput.dox',
 +      # dot drawings
 +      'dot/seats-sketch.gv',
 +      'dot/seats-sketch-libinput.gv',
 +      'dot/libinput-stack-wayland.gv',
 +      'dot/libinput-stack-xorg.gv',
 +      'dot/libinput-stack-gnome.gv',
 +      'dot/evemu.gv',
 +      # svgs
 +      'svg/button-debouncing-wave-diagram.svg',
 +      'svg/button-scrolling.svg',
 +      'svg/clickfinger.svg',
 +      'svg/clickfinger-distance.svg',
 +      'svg/edge-scrolling.svg',
 +      'svg/gesture-2fg-ambiguity.svg',
 +      'svg/palm-detection.svg',
 +      'svg/pinch-gestures.svg',
 +      'svg/pinch-gestures-softbuttons.svg',
 +      'svg/ptraccel-linear.svg',
 +      'svg/ptraccel-low-dpi.svg',
 +      'svg/ptraccel-touchpad.svg',
 +      'svg/ptraccel-trackpoint.svg',
 +      'svg/software-buttons.svg',
 +      'svg/swipe-gestures.svg',
 +      'svg/tablet-axes.svg',
 +      'svg/tablet-cintiq24hd-modes.svg',
 +      'svg/tablet-interfaces.svg',
 +      'svg/tablet-intuos-modes.svg',
 +      'svg/tablet-left-handed.svg',
 +      'svg/tablet-out-of-bounds.svg',
 +      'svg/tablet.svg',
 +      'svg/tap-n-drag.svg',
 +      'svg/thumb-detection.svg',
 +      'svg/top-software-buttons.svg',
 +      'svg/touchscreen-gestures.svg',
++      'svg/trackpoint-delta-illustration.svg',
 +      'svg/twofinger-scrolling.svg',
 +      # style files
 +      'style/header.html',
 +      'style/footer.html',
 +      'style/customdoxygen.css',
 +      'style/bootstrap.css',
 +      'style/libinputdoxygen.css',
 +)
 +
 +doxyfiles = custom_target('doxyfiles',
 +                        input : src_doxygen,
 +                        output : '.',
 +                        command : [prg_install, '-t', '@OUTDIR@', '@INPUT@'],
 +                        build_by_default: true)
 +
 +doc_config = configuration_data()
 +doc_config.set('PACKAGE_NAME', meson.project_name())
 +doc_config.set('PACKAGE_VERSION', meson.project_version())
 +doc_config.set('builddir', meson.current_build_dir())
 +
 +doxyfile = configure_file(input : 'libinput.doxygen.in',
 +                        output : 'libinput.doxygen',
 +                        configuration : doc_config,
 +                        install : false)
 +
 +custom_target('doxygen',
 +            input : [ doxyfile, readme ] + src_doxygen,
 +            output : [ 'Documentation' ],
 +            command : [ doxygen, doxyfile ],
 +            install : false,
 +            depends: [doxyfiles, readme],
 +            build_by_default : true)