Add and install icons.

This adds one new app icon and one new symbolic icon, and makes meson install these to the appropriate
directories, and adds an appropriate entry in the .desktop file.

data/icons/meson.build

@@ -0,0 +1,9 @@
+install_data(
+  '@0@.svg'.format(base_id),
+  install_dir: iconsdir / 'hicolor' / 'scalable' / 'apps'
+)
+
+install_data(
+  '@0@-symbolic.svg'.format(base_id),
+  install_dir: iconsdir / 'hicolor' / 'symbolic' / 'apps',
+)

data/icons/org.freedesktop.ryuukyu.Helvum-symbolic.svg

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg height="16px" viewBox="0 0 16 16" width="16px" xmlns="http://www.w3.org/2000/svg">
+    <path d="m 3.5 2.5 h 9 c 1.378906 0 2.5 1.121094 2.5 2.5 v 5 c 0 1.378906 -1.121094 2.5 -2.5 2.5 h -9 c -1.378906 0 -2.5 -1.121094 -2.5 -2.5 v -5 c 0 -1.378906 1.121094 -2.5 2.5 -2.5 z m 0 0" fill="#241f31" fill-rule="evenodd"/>
+    <g fill="none" stroke="#8a8891">
+        <path d="m 11 7.5 h -6"/>
+        <path d="m 5 7.5 c 0 -4.15625 -1.382812 -10.855469 -3.90625 -13.25" stroke-linecap="round" stroke-linejoin="bevel" stroke-width="4"/>
+    </g>
+</svg>

data/icons/org.freedesktop.ryuukyu.Helvum.svg

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg height="128px" viewBox="0 0 128 128" width="128px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <linearGradient id="a" gradientUnits="userSpaceOnUse">
+        <stop offset="0" stop-color="#9a9996"/>
+        <stop offset="0.5" stop-color="#c0bfbc"/>
+        <stop offset="1" stop-color="#deddda"/>
+    </linearGradient>
+    <linearGradient id="b" x1="26.263471" x2="26.263586" xlink:href="#a" y1="24.848538" y2="37.1125"/>
+    <linearGradient id="c" gradientUnits="userSpaceOnUse" x1="7.39555839647" x2="120.60350567947" y1="82.86737386462" y2="82.86737386462">
+        <stop offset="0" stop-color="#5e5c64"/>
+        <stop offset="0.0384615" stop-color="#77767b"/>
+        <stop offset="0.0768555" stop-color="#5e5c64"/>
+        <stop offset="0.923077" stop-color="#5e5c64"/>
+        <stop offset="0.961538" stop-color="#77767b"/>
+        <stop offset="1" stop-color="#5e5c64"/>
+    </linearGradient>
+    <linearGradient id="d" gradientTransform="matrix(2.571428 0 0 2.454545 22.856596 -228.048061)" x1="16" x2="16" xlink:href="#a" y1="121.582512" y2="127.082512"/>
+    <linearGradient id="e" gradientTransform="matrix(2.571428 0 0 2.454545 22.856596 -253.563246)" x1="16" x2="16" xlink:href="#a" y1="121.582512" y2="127.082512"/>
+    <linearGradient id="f" gradientTransform="matrix(2.571428 0 0 2.454545 60.592569 -253.563246)" x1="16" x2="16" xlink:href="#a" y1="121.582512" y2="127.082512"/>
+    <linearGradient id="g" gradientTransform="matrix(2.571428 0 0 2.454545 60.592569 -228.048061)" x1="16" x2="16" xlink:href="#a" y1="121.582512" y2="127.082512"/>
+    <linearGradient id="h" gradientTransform="matrix(2.358499 0 0 2.251294 -11.472502 -204.652927)" gradientUnits="userSpaceOnUse" x1="12.5" x2="19.5" y1="113.832512" y2="113.832512">
+        <stop offset="0" stop-color="#c0bfbc"/>
+        <stop offset="0.5" stop-color="#9a9996"/>
+        <stop offset="1" stop-color="#c0bfbc"/>
+    </linearGradient>
+    <linearGradient id="i" gradientTransform="matrix(2.571428 0 0 2.454545 -14.879853 -228.048061)" x1="16" x2="16" xlink:href="#a" y1="121.582512" y2="127.082512"/>
+    <path d="m 34.519531 30.980469 c 0 3.386719 -3.695312 6.132812 -8.257812 6.132812 c -4.558594 0 -8.253907 -2.746093 -8.253907 -6.132812 s 3.695313 -6.132813 8.253907 -6.132813 c 4.5625 0 8.257812 2.746094 8.257812 6.132813 z m 0 0" fill="url(#b)" fill-rule="evenodd"/>
+    <path d="m 120.601562 82.867188 v 18.867187 c 0 5.226563 -4.207031 9.433594 -9.433593 9.433594 h -94.339844 c -5.226563 0 -9.433594 -4.207031 -9.433594 -9.433594 v -18.867187 z m 0 0" fill="url(#c)" fill-rule="evenodd"/>
+    <path d="m 16.828125 35.699219 c -5.226563 0 -9.433594 4.207031 -9.433594 9.433593 v 37.734376 c 0 5.226562 4.207031 9.433593 9.433594 9.433593 h 94.339844 c 5.226562 0 9.4375 -4.207031 9.4375 -9.433593 v -37.734376 c 0 -5.226562 -4.210938 -9.433593 -9.4375 -9.433593 h -76.648438 v 2.355469 h -16.511719 v -2.355469 z m 0 0" fill="#77767b" fill-rule="evenodd"/>
+    <path d="m 93.480469 76.378906 l -30.660157 -24.761718" fill="none" stroke="#77767b" stroke-linecap="square" stroke-width="3.74412"/>
+    <path d="m 64 58.691406 v 10.613282" fill="none" stroke="#999999" stroke-width="1.5"/>
+    <g fill-rule="evenodd">
+        <path d="m 75 77.132812 c 0 4.554688 -4.925781 8.25 -11 8.25 s -11 -3.695312 -11 -8.25 c 0 -4.558593 4.925781 -8.25 11 -8.25 s 11 3.691407 11 8.25 z m 0 0" fill="#e01b24"/>
+        <path d="m 73 77.132812 c 0 3.726563 -4.03125 6.75 -9 6.75 c -4.972656 0 -9 -3.023437 -9 -6.75 c 0 -3.730468 4.027344 -6.75 9 -6.75 c 4.96875 0 9 3.019532 9 6.75 z m 0 0" fill="url(#d)"/>
+        <path d="m 71 77.132812 c 0 2.898438 -3.132812 5.25 -7 5.25 s -7 -2.351562 -7 -5.25 c 0 -2.902343 3.132812 -5.25 7 -5.25 s 7 2.347657 7 5.25 z m 0 0" fill="#3d3846"/>
+        <path d="m 75 51.617188 c 0 4.554687 -4.925781 8.25 -11 8.25 s -11 -3.695313 -11 -8.25 c 0 -4.558594 4.925781 -8.25 11 -8.25 s 11 3.691406 11 8.25 z m 0 0" fill="#1c71d8"/>
+        <path d="m 73 51.617188 c 0 3.726562 -4.03125 6.75 -9 6.75 c -4.972656 0 -9 -3.023438 -9 -6.75 c 0 -3.730469 4.027344 -6.75 9 -6.75 c 4.96875 0 9 3.019531 9 6.75 z m 0 0" fill="url(#e)"/>
+        <path d="m 71 51.617188 c 0 2.898437 -3.132812 5.25 -7 5.25 s -7 -2.351563 -7 -5.25 c 0 -2.898438 3.132812 -5.25 7 -5.25 s 7 2.351562 7 5.25 z m 0 0" fill="#3d3846"/>
+        <path d="m 112.734375 51.617188 c 0 4.554687 -4.921875 8.25 -11 8.25 c -6.074219 0 -11 -3.695313 -11 -8.25 c 0 -4.558594 4.925781 -8.25 11 -8.25 c 6.078125 0 11 3.691406 11 8.25 z m 0 0" fill="#1c71d8"/>
+        <path d="m 110.734375 51.617188 c 0 3.726562 -4.027344 6.75 -9 6.75 c -4.96875 0 -9 -3.023438 -9 -6.75 c 0 -3.730469 4.03125 -6.75 9 -6.75 c 4.972656 0 9 3.019531 9 6.75 z m 0 0" fill="url(#f)"/>
+        <path d="m 108.734375 51.617188 c 0 2.898437 -3.132813 5.25 -7 5.25 c -3.863281 0 -7 -2.351563 -7 -5.25 c 0 -2.898438 3.136719 -5.25 7 -5.25 c 3.867187 0 7 2.351562 7 5.25 z m 0 0" fill="#3d3846"/>
+    </g>
+    <path d="m 101.734375 58.691406 v 10.613282" fill="none" stroke="#999999" stroke-width="1.5"/>
+    <path d="m 112.734375 77.132812 c 0 4.554688 -4.921875 8.25 -11 8.25 c -6.074219 0 -11 -3.695312 -11 -8.25 c 0 -4.558593 4.925781 -8.25 11 -8.25 c 6.078125 0 11 3.691407 11 8.25 z m 0 0" fill="#e01b24" fill-rule="evenodd"/>
+    <path d="m 110.734375 77.132812 c 0 3.726563 -4.027344 6.75 -9 6.75 c -4.96875 0 -9 -3.023437 -9 -6.75 c 0 -3.730468 4.03125 -6.75 9 -6.75 c 4.972656 0 9 3.019532 9 6.75 z m 0 0" fill="url(#g)" fill-rule="evenodd"/>
+    <path d="m 108.734375 77.132812 c 0 2.898438 -3.132813 5.25 -7 5.25 c -3.863281 0 -7 -2.351562 -7 -5.25 c 0 -2.902343 3.136719 -5.25 7 -5.25 c 3.867187 0 7 2.347657 7 5.25 z m 0 0" fill="#3d3846" fill-rule="evenodd"/>
+    <path d="m 26.261719 69.339844 v -10.648438" fill="none" stroke="#999999" stroke-width="1.5"/>
+    <path d="m 37.261719 52.515625 c 0 4.238281 -4.921875 7.671875 -11 7.671875 c -6.074219 0 -11 -3.433594 -11 -7.671875 c 0 -4.234375 4.925781 -7.671875 11 -7.671875 c 6.078125 0 11 3.4375 11 7.671875 z m 0 0" fill="#1c71d8" fill-rule="evenodd"/>
+    <path d="m 18.007812 30.980469 v 20.636719 c 0.003907 3.417968 3.699219 6.191406 8.253907 6.191406 c 4.554687 0 8.25 -2.765625 8.253906 -6.183594 c 0 0 0 -0.003906 0 -0.007812 v -20.636719 c -1.308594 2.597656 -4.589844 6.132812 -8.253906 6.132812 c -3.660157 0 -6.941407 -3.535156 -8.253907 -6.132812 z m 0 0" fill="url(#h)" fill-rule="evenodd"/>
+    <path d="m 37.261719 77.132812 c 0 4.554688 -4.921875 8.25 -11 8.25 c -6.074219 0 -11 -3.695312 -11 -8.25 c 0 -4.558593 4.925781 -8.25 11 -8.25 c 6.078125 0 11 3.691407 11 8.25 z m 0 0" fill="#e01b24" fill-rule="evenodd"/>
+    <path d="m 35.261719 77.132812 c 0 3.726563 -4.027344 6.75 -9 6.75 c -4.96875 0 -9 -3.023437 -9 -6.75 c 0 -3.730468 4.03125 -6.75 9 -6.75 c 4.972656 0 9 3.019532 9 6.75 z m 0 0" fill="url(#i)" fill-rule="evenodd"/>
+    <path d="m 33.261719 77.132812 c 0 2.898438 -3.132813 5.25 -7 5.25 c -3.863281 0 -7 -2.351562 -7 -5.25 c 0 -2.902343 3.136719 -5.25 7 -5.25 c 3.867187 0 7 2.347657 7 5.25 z m 0 0" fill="#3d3846" fill-rule="evenodd"/>
+    <path d="m 34.519531 30.980469 c 0 3.386719 -3.695312 6.132812 -8.257812 6.132812 c -4.558594 0 -8.253907 -2.746093 -8.253907 -6.132812 s 3.695313 -6.132813 8.253907 -6.132813 c 4.5625 0 8.257812 2.746094 8.257812 6.132813 z m 0 0" fill="#c0bfbc" fill-rule="evenodd"/>
+    <path d="m 30.980469 30.980469 c 0 1.953125 -2.113281 3.539062 -4.71875 3.539062 c -2.601563 0 -4.714844 -1.585937 -4.714844 -3.539062 s 2.113281 -3.539063 4.714844 -3.539063 c 2.605469 0 4.71875 1.585938 4.71875 3.539063 z m 0 0" fill="#1a5fb4" fill-rule="evenodd"/>
+    <path d="m 26.261719 30.980469 c 0 -7.074219 0.628906 -18.371094 -10.285157 -21.847657 c -11.828124 -3.765624 -33.882812 3 -33.882812 3" fill="none" stroke="#1a5fb4" stroke-width="9.434"/>
+</svg>

data/meson.build

@@ -1,4 +1,12 @@
-desktop_file = '@0@.desktop'.format(base_id)
+subdir('icons')
+
+desktop_conf = configuration_data()
+desktop_conf.set('icon', base_id)
+desktop_file = configure_file(
+  input: '@0@.desktop.in'.format(base_id),
+  output: '@BASENAME@',
+  configuration: desktop_conf
+)
 
 if desktop_file_validate.found()
   test(
@@ -11,6 +19,6 @@ if desktop_file_validate.found()
 endif
 
 install_data(
-    desktop_file,
+  desktop_file,
-    install_dir: datadir / 'applications'
+  install_dir: datadir / 'applications'
 )

data/org.freedesktop.ryuukyu.Helvum.desktop.in

@@ -6,3 +6,4 @@ Type=Application
 Exec=helvum
 Terminal=false
 Categories=AudioVideo;Audio;Video;Midi;Settings;GNOME;GTK;
+Icon=@icon@

meson.build

@@ -25,6 +25,7 @@ cargo_script = find_program('build-aux/cargo.sh')
 prefix = get_option('prefix')
 bindir = prefix / get_option('bindir')
 datadir = prefix / get_option('datadir')
+iconsdir = datadir / 'icons'
 
 cargo_sources = files(
   'Cargo.toml',