[QTBUG-83162] Dynamic FontLoader instantiation causes improper font rendering - Qt Bug Tracker

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Details

Type: Bug
Status: Closed
Priority: P2: Important
Resolution: Done
Affects Version/s: 5.12.7
Fix Version/s: 5.15.0
Component/s: GUI: Font handling
Labels:
- Reported_by_support_premium
Environment:
Microsoft Surface Pro 4

Platform/s:

Windows

Description

When Qt::AA_EnableHighDpiScaling flag is set, and screen scaling is set to 200% (as recommended) loading fonts via FontLoader dynamically (e.g. via StackView) causes warnings printed and improper font rendering.

Application output:

QWindowsFontEngineDirectWrite::addGlyphsToPath: GetGlyphRunOutline failed (The parameter is incorrect.)
QWindowsFontEngineDirectWrite::addGlyphsToPath: GetGlyphRunOutline failed (The parameter is incorrect.)
QWindowsFontEngineDirectWrite::addGlyphsToPath: GetGlyphRunOutline failed (The parameter is incorrect.)
QWindowsFontEngineDirectWrite::addGlyphsToPath: GetGlyphRunOutline failed (The parameter is incorrect.)

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font_rendering_problem_1.png
7 kB
29 Mar '20 16:22
font_rendering_problem_2.png
6 kB
29 Mar '20 16:22
FontRenderingProblem.zip
360 kB
29 Mar '20 16:22
Main.qml
0.7 kB
29 Mar '20 16:24

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Assignee:: Eskil Abrahamsen Blomfeldt

Reporter:: Michał Cieślak

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 29 Mar '20 16:32

Updated:: 20 Aug '20 10:21

Resolved:: 20 Aug '20 10:21

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