Add icon and desktop file

resources/meson.build

@@ -5,3 +5,35 @@ resources = gnome.compile_resources(
   source_dir : '.',
   c_name : 'waydisplay_resources')
 
+scour = find_program('scour', required: false)
+
+icon = 'wdisplays.svg'
+icondir = get_option('datadir') / 'icons' / 'hicolor' / 'scalable' / 'apps'
+
+if scour.found()
+  custom_target('optimize-icon',
+      input: icon,
+      output: '@0@.svg'.format(meson.project_name()),
+      command: [scour,
+      '--enable-viewboxing',
+      '--enable-comment-stripping',
+      '--remove-descriptive-elements',
+      '--enable-id-stripping',
+      '--shorten-ids',
+      '--create-groups',
+      '--strip-xml-space',
+      '--strip-xml-prolog',
+      '--indent=none',
+      '--no-line-breaks',
+      '@INPUT@', '@OUTPUT@'],
+      install: true,
+      install_dir: icondir)
+  else
+install_data(icon, install_dir: icondir)
+  endif
+
+install_data(
+    configure_file(input: 'wdisplays.desktop.in',
+      output: '@0@.desktop'.format(meson.project_name()),
+      configuration: conf),
+    install_dir: get_option('datadir') / 'applications')