Move SVG generation to the Drawing

This means we can just call refresh() from the parent after the orientation
has changed.

tuhigui/drawing.py

@@ -13,6 +13,7 @@
 from gi.repository import GObject, Gtk
 
 from .config import Config
+from .svg import JsonSvg
 
 import datetime
 import time
@@ -44,9 +45,10 @@ class Drawing(Gtk.Box):
     image_completed = Gtk.Template.Child()
     btn_download = Gtk.Template.Child()
 
-    def __init__(self, svg, *args, **kwargs):
+    def __init__(self, json_data, *args, **kwargs):
         super().__init__()
-        self.svg = svg
+        self.json_data = json_data
+        self.svg = svg = JsonSvg(json_data)
         day = relative_date(svg.timestamp)
         hour = time.strftime('%H:%M', time.localtime(svg.timestamp))
 
@@ -55,6 +57,10 @@ class Drawing(Gtk.Box):
         self.image_completed.set_visible(False)
         self.timestamp = svg.timestamp
 
+    def refresh(self):
+        self.svg = svg = JsonSvg(self.json_data)
+        self.image_svg.set_from_file(svg.filename)
+
     @GObject.Property
     def name(self):
         return "drawing"

tuhigui/drawingperspective.py

@@ -13,7 +13,6 @@
 
 from gi.repository import GObject, Gtk
 from .drawing import Drawing
-from .svg import JsonSvg
 from .config import Config
 
 import time
@@ -73,8 +72,7 @@ class DrawingPerspective(Gtk.Stack):
         # isn't something that should happen very often anyway so meh.
         self.known_drawings = []
 
-        self.flowbox_drawings.foreach(lambda child: self.flowbox_drawings.remove(child))
-        self._update_drawings(Config.load(), None)
+        self.flowbox_drawings.foreach(lambda child: child.get_child().refresh())
 
     def _cache_drawings(self, device, pspec):
         # The config backend filters duplicates anyway, so don't care here
@@ -89,8 +87,7 @@ class DrawingPerspective(Gtk.Stack):
 
             self.known_drawings.append(js)
 
-            svg = JsonSvg(js)
-            drawing = Drawing(svg)
+            drawing = Drawing(js)
 
             # We don't know which order we get drawings from the device, so
             # let's do a sorted insert here