app-misc/piper: add ebuild and patches

app-misc/piper/files/piper-0.2.900-resolutionrow-use-new-ratbagdresolution-api.patch

@@ -0,0 +1,28 @@
+From 87dc9f427a9376915f30231459fb76c84d57b973 Mon Sep 17 00:00:00 2001
+From: Jente Hidskes <hjdskes@gmail.com>
+Date: Sun, 15 Oct 2017 12:33:47 +0200
+Subject: [PATCH 20/30] ResolutionRow: use new RatbagdResolution API
+
+The API was changed in https://github.com/libratbag/libratbag/pull/393.
+---
+ piper/resolutionrow.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/piper/resolutionrow.py b/piper/resolutionrow.py
+index 8cba448..108af45 100644
+--- a/piper/resolutionrow.py
++++ b/piper/resolutionrow.py
+@@ -60,8 +60,8 @@ class ResolutionRow(Gtk.ListBoxRow):
+                                                   self._on_is_active_changed)
+ 
+         xres, __ = resolution.resolution
+-        minres = resolution.minimum
+-        maxres = resolution.maximum
++        minres = resolution.resolutions[0]
++        maxres = resolution.resolutions[-1]
+         self.dpi_label.set_text("{} DPI".format(xres))
+         self.active_label.set_visible(resolution.is_active)
+ 
+-- 
+2.16.1
+