Can we get an event when scale aka DPI changes?

Description

This issue does not include a description.

Contributor guide

Tech stack

rust

Domain

desktop

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-2 days

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Familiarity with RustUnderstanding of druid's event system

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

40

Research direction

Investigate the druid event system by examining the Event enum and WinHandler trait in the source code. Look for existing handling of scale factor changes. Consider adding a new event variant for DPI changes. Review any related issues or PRs. Implement the event propagation through the widget hierarchy, ensuring that widgets can respond to scale changes.