jimp-dev/jimp

Error in Text wrapping when in aligning to right

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#997 opened on Mar 26, 2021

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bughelp wanted

Description

Expected Behavior

Image.print(font, x0 , y0 , { text : 'long'text ,...', alignmentX: HORIZONTAL_ALIGN_RIGHT,alignmentY : VERTICAL_ALIGN_TOP } , maxWidth, maxHeight) should see the text print from rightAxis+x0-maxWidth and wrap when rightAxis+x0 is reached

Current Behavior

The text is printing starting at maxWidth

Failure Information (for bugs)

Steps to Reproduce

Context

  • Jimp Version: 0.16.1
  • Operating System: Windows10
  • Node version: v12.19.0

Failure Logs

Contributor guide

Tech stack
javascriptnodejs
Domain
backend
Issue type
bug
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.
1-3 hours
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
basic JavaScriptfamiliarity with Jimp library
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
The issue describes a bug in the `print` method of Jimp when `alignmentX` is set to `HORIZONTAL ALIGN RIGHT`. The text starts at `maxWidth` instead of wrapping from the right edge. To fix, examine the text layout logic in the `print` function, likely in `src/index.js` or similar. Look at how the `maxWidth` parameter and alignment flags interact during text wrapping. There are no linked PRs or comments, so the fix requires independent investigation of the font rendering code. Consider writing a test case that reproduces the issue before making changes.