From b97ec38baff4f8ca5db1bdb13cdf5885ceda4316 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Sat, 23 Apr 2022 17:22:28 -0400
Subject: [PATCH] Always maybe render graphics

Since we have in-view style rendering working for all curve types
(finally) we can avoid the guard for low uppx levels and without losing
interaction speed. Further don't delay the profiler so that the nested
method calls correctly report upward - which wasn't working likely due
to some kinda GC collection related issue.
---
 piker/ui/_interaction.py | 84 +++++++++++++++++++++-------------------
 1 file changed, 44 insertions(+), 40 deletions(-)

diff --git a/piker/ui/_interaction.py b/piker/ui/_interaction.py
index ca49a35d..943f3370 100644
--- a/piker/ui/_interaction.py
+++ b/piker/ui/_interaction.py
@@ -20,7 +20,6 @@ Chart view box primitives
 """
 from __future__ import annotations
 from contextlib import asynccontextmanager
-# import itertools
 import time
 from typing import Optional, Callable
 
@@ -907,54 +906,59 @@ class ChartView(ViewBox):
     def maybe_downsample_graphics(self):
 
         uppx = self.x_uppx()
-        if not (
-            # we probably want to drop this once we are "drawing in
-            # view" for downsampled flows..
-            uppx and uppx > 6
-            and self._ic is not None
-        ):
-            profiler = pg.debug.Profiler(
-                msg=f'ChartView.maybe_downsample_graphics() for {self.name}',
-                disabled=not pg_profile_enabled(),
-                # delayed=True,
-                gt=3,
-                # gt=ms_slower_then,
-            )
+        # if not (
+        #     # we probably want to drop this once we are "drawing in
+        #     # view" for downsampled flows..
+        #     uppx and uppx > 6
+        #     and self._ic is not None
+        # ):
+        profiler = pg.debug.Profiler(
+            msg=f'ChartView.maybe_downsample_graphics() for {self.name}',
+            disabled=not pg_profile_enabled(),
 
-            # TODO: a faster single-loop-iterator way of doing this XD
-            chart = self._chart
-            linked = self.linkedsplits
-            plots = linked.subplots | {chart.name: chart}
-            for chart_name, chart in plots.items():
-                for name, flow in chart._flows.items():
+            # XXX: important to avoid not seeing underlying
+            # ``.update_graphics_from_flow()`` nested profiling likely
+            # due to the way delaying works and garbage collection of
+            # the profiler in the delegated method calls.
+            delayed=False,
+            # gt=3,
+            # gt=ms_slower_then,
+        )
 
-                    if (
-                        not flow.render
+        # TODO: a faster single-loop-iterator way of doing this XD
+        chart = self._chart
+        linked = self.linkedsplits
+        plots = linked.subplots | {chart.name: chart}
+        for chart_name, chart in plots.items():
+            for name, flow in chart._flows.items():
 
-                        # XXX: super important to be aware of this.
-                        # or not flow.graphics.isVisible()
-                    ):
-                        continue
+                if (
+                    not flow.render
 
-                    graphics = flow.graphics
+                    # XXX: super important to be aware of this.
+                    # or not flow.graphics.isVisible()
+                ):
+                    continue
 
-                    use_vr = False
-                    if isinstance(graphics, BarItems):
-                        use_vr = True
+                graphics = flow.graphics
 
-                    # pass in no array which will read and render from the last
-                    # passed array (normally provided by the display loop.)
-                    chart.update_graphics_from_flow(
-                        name,
-                        use_vr=use_vr,
+                # use_vr = False
+                # if isinstance(graphics, BarItems):
+                #     use_vr = True
 
-                        # gets passed down into graphics obj
-                        # profiler=profiler,
-                    )
+                # pass in no array which will read and render from the last
+                # passed array (normally provided by the display loop.)
+                chart.update_graphics_from_flow(
+                    name,
+                    use_vr=True,
 
-                    profiler(f'range change updated {chart_name}:{name}')
+                    # gets passed down into graphics obj
+                    # profiler=profiler,
+                )
 
-            profiler.finish()
+                profiler(f'range change updated {chart_name}:{name}')
+
+        profiler.finish()
         # else:
         #     # don't bother updating since we're zoomed out bigly and
         #     # in a pan-interaction, in which case we shouldn't be