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Parent-Child UI System #122

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opened 2025-07-12 19:07:30 +00:00 by john · 1 comment
john commented 2025-07-12 19:07:30 +00:00
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Add parent field to UI drawables for proper hierarchy.
Definition of Done:

  • All UIDrawables have optional parent reference
  • Auto-remove from old parent when adding to new
  • Proper cleanup on destruction
  • Global position calculation possible
Add parent field to UI drawables for proper hierarchy. Definition of Done: - All UIDrawables have optional parent reference - Auto-remove from old parent when adding to new - Proper cleanup on destruction - Global position calculation possible
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john commented 2025-11-01 07:39:16 +00:00
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When implementing parent references, consider the Grid children feature (#132) which will need parent-aware behavior.

Grid children will use grid-world pixel coordinates but should be able to query their global position on screen, accounting for:

  • Grid's screen position (box.getPosition())
  • Grid's camera transform (center_x, center_y, zoom)
  • Any parent Frame/Scene transforms

The parent reference system should support this composition naturally.

When implementing parent references, consider the Grid children feature (#132) which will need parent-aware behavior. Grid children will use grid-world pixel coordinates but should be able to query their global position on screen, accounting for: - Grid's screen position (`box.getPosition()`) - Grid's camera transform (center_x, center_y, zoom) - Any parent Frame/Scene transforms The parent reference system should support this composition naturally.
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Alpha Release Requirement

This issue is a blocker to 0.1 Alpha release of McRogueFace.

  
Bugfix

   
Demo Target

Functionality to demonstrate; Depends on new features, but this issue isn't for writing them.

  
Documentation

   
Major Feature

Significant time and effort required.

  
Minor Feature

Some effort required to create or overhaul functionality.

  
priority:tier1-active

Current development focus - critical path to v1.0

  
priority:tier2-foundation

Important foundation work - not blocking v1.0

  
priority:tier3-future

Future features - deferred until after v1.0

  
Refactoring & Cleanup

no new functionality, just improving the codebase.

  
system:animation

Animation and property interpolation

  
system:documentation

Documentation infrastructure

  
system:grid

Grid system and spatial containers

  
system:input

Input handling and events

  
system:performance

Performance optimization and profiling

  
system:python-binding

Python/C++ binding layer

  
system:rendering

Rendering pipeline and visuals

  
system:ui-hierarchy

UI component hierarchy and composition

  
Tiny Feature

quick and easy - a few lines or with little interconnection around the codebase

  
workflow:blocked

Blocked by other work - waiting on dependencies

  
workflow:needs-benchmark

Needs performance testing and benchmarks

  
workflow:needs-documentation

Needs documentation before or after implementation

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priority:tier1-active
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priority:tier3-future
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system:animation
system:documentation
system:grid
system:input
system:performance
system:python-binding
system:rendering
system:ui-hierarchy
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workflow:needs-documentation
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Reference: john/McRogueFace#122
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