Week 21 Progress Report

Table of Contents

# Topics To Be Covered In This Post
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What I did this week
- Pushing code and bug fixes to Gerrit
- Tweaked UI to simplify and make text more legible.
- Fixed SVG icon scaling issues in the dashboard (Updated Docker file to resolve dependencies)
- Refactored subscription updates (UI updates are blocked when sending values to Kuksa).
- Update documentation and Readme file.
What I plan to do next

# Pushing to Gerrit
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This week, major work was completed for the AGL Demo Control Panel and commits were made for review on Gerrit. The following changes have been pushed so far:

Changes pushed so far:

29279: agl-demo-control-panel: Refactor Settings, Config and UI scaling | https://gerrit.automotivelinux.org/gerrit/c/src/agl-demo-control-panel/+/29279 (merged)
29291: agl-demo-control-panel: Fix Svg icons scaling on Dashboard | https://gerrit.automotivelinux.org/gerrit/c/src/agl-demo-control-panel/+/29291
29292: agl-demo-control-panel: Update documentation | https://gerrit.automotivelinux.org/gerrit/c/AGL/documentation/+/29292

Bug Fixes
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This week I patched a small bug where setting the temperature values would cause an exception/crash when going beyond the min/max values available. The bug was reported in SPEC-4939.
I also patched the scaling issue of the SVG icons for the dashboard of the control panel using the QtSvg module of PyQt5, however on Debian-based systems, this sub-module is only available through the python3-PyQt5.QtSvg package.
Fixed a bug where new-config would not be created due to a key error when stating the client in the AGL-kuksa-val-server config.

UI Tweaks
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Increased DejaVu font sizes for QLabels and QPushButtons to make the text more legible.
Removed QScrollbar components to better adjust to smaller screens and remove clipped borders in QStacked widget frames.
Start/Stop button was redone to help manage sessions of the client more easily.
The client is now stops when AGL_Demo_Control_Panel is closed using the window controls.

Refactored Kuksa Subscription
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This week I also refactored the way subscribed updates are handled in the control panel, previously the application would both subscribe to any changes made to a signal and also set the updated values, and since the new values set on the control panel trigger a send_values function when an event occurs, the values would be set twice.

This week I refactored by making use of pyqtsignals and slotted functions which not only help in sending interpreters communication between modules but also threads. Now whenever the values are being set by the control panel, all updates made via the subscription module are blocked temporarily. This helps remove the jittery feeling in the sliders when setting new values.