Line wrapping of tooltips in ListView objects

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Summary

The issue at hand is related to line wrapping of tooltips in ListView objects, specifically in Dyalog APL version 16. The provided function creates a window with a small table, where the first column’s tooltip text is wrapped, but subsequent columns’ tooltip texts are not. The goal is to find a way to make all tooltip texts wrapped.

Root Cause

The root cause of this issue lies in the way tooltip text rendering is handled in ListView objects. The main reasons for this behavior are:

  • Default tooltip settings: The default settings for tooltips in ListView objects may not be optimized for wrapped text.
  • Column-specific rendering: Each column in the ListView object may have its own rendering settings, which can affect how tooltip text is displayed.
  • APL version limitations: The version of Dyalog APL being used (version 16) may have limitations or bugs that contribute to this issue.

Why This Happens in Real Systems

This issue can occur in real systems due to:

  • Insufficient testing: The application may not have been thoroughly tested for tooltip text wrapping in all columns.
  • Inconsistent UI settings: The UI settings for the ListView object may not be consistently applied across all columns.
  • Version-specific bugs: The version of Dyalog APL being used may have bugs or limitations that cause this issue.

Real-World Impact

The impact of this issue can be significant, including:

  • Poor user experience: Unwrapped tooltip text can be difficult to read and understand, leading to a poor user experience.
  • Reduced usability: The application may be less usable due to the difficulty in reading tooltip text.
  • Increased support requests: Users may submit support requests due to the issue, increasing the workload for support teams.

Example or Code

Test;items;reportInfo
items←200⍴'First column '
reportInfo←1 1⍴⊂200⍴'Second column '
'F'⎕WC'Form' 'F.LV'⎕WC'ListView'('View' 'Report')('Items'items)('ReportInfo'reportInfo)

How Senior Engineers Fix It

Senior engineers can fix this issue by:

  • Checking UI settings: Verifying that the UI settings for the ListView object are consistently applied across all columns.
  • Updating APL version: Considering an update to a newer version of Dyalog APL that may have resolved the issue.
  • Implementing custom rendering: Implementing custom rendering for tooltip text to ensure it is wrapped correctly.

Why Juniors Miss It

Junior engineers may miss this issue due to:

  • Lack of experience: Limited experience with Dyalog APL and ListView objects.
  • Insufficient testing: Not thoroughly testing the application for tooltip text wrapping in all columns.
  • Unfamiliarity with UI settings: Not being familiar with the UI settings for the ListView object and how they affect tooltip text rendering.