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  1. Qt
  2. QTBUG-50991

High-DPI Qt

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    Details

    • Type: Task
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: 5.6
    • Component/s: GUI: High-DPI
    • Labels:
      None

      Description

      High-DPI Qt Fixing Overview

      Short Term (5.6.x if possible)

      Qt Widgets

      QTBUG-36825 StyleSheet background property
      QTBUG-47844 [Regression] QLabel scaledContents stretches its pixmap way beyond its size
      QTBUG-26795 QGraphicsView: Patch series at: https://codereview.qt-project.org/#/c/142920 . Currently blocked on "QPaintEngine systemClip shared painter fixing": https://codereview.qt-project.org/#/c/142923/
      QTBUG-52606 Combobox popup positioning

      X11
      QTBUG-52318 Qt Assistant UI scaled incorrectly
      QTBUG-53416 Wrong device pixel ratio

      Windows

      OS X
      QTBUG-50251 Mixed-display (retina + non-retina) setup: icons on non-retina display are downscaled.
      QTBUG-46803 grabWindow doesn't work with retina and if an area is specified

      Qt Quick
      QTBUG-37095 Canvas element renders fuzzy on retina displays
      QTBUG-50119 AnimatedSprite does not support @2x hires image resolution
      QTBUG-50652
      QTBUG-52695

      Qt Creator
      Flash-of-white when changing displays
      Font uglyness for Qt Quick content (most likely) when on 1x display with 2x display attached.

      General
      Documentation: https://codereview.qt-project.org/#/c/150242/
      QTBUG-51111: Android screen size.
      QTBUG-52137: QWidget grab with HighDPI mode

      DONE
      QTBUG-34116

      Medium / Long Term (5.7/dev)

      Improve QtWidgets support for non-integer devicePixelRatios
      Render at an integer factor and downscale. For example, 100x100@1.75x : render at 100x100@2x (200x200) and downsample to 175x175. This requires hardware scaling (OpenGL). Prototype using software scaling on OS X: https://codereview.qt-project.org/143819
      QTBUG-53160: renderToTexture mode.

      qhighdpiscaling_p.h refactor
      Clean up and make the to/from nativePixels internal API and implementation more uniform. Change: https://codereview.qt-project.org/#/c/145925/

      Windows Style
      Can we make it scalable?

      Android Style
      The android style is already scalable. However we get duplicate scaling when devicePixelRatio high-DPI is enabled.

      QtWidgets API
      QIcon::pixmpap(QWindow *is cumbersome) (https://codereview.qt-project.org/#/c/156288/)
      classes that have setPixmap() should have setIcon() (QLabel)

      QTBUG-49820: Icon and Image loading.
      QTBUG-55623: QSystemTrayIcon baloon window
      QTBUG-51628: Multi-monitor display woes.

      Scale Factor Setting Update
      QTBUG-53022

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              Assignee:
              sorvig Morten Sørvig
              Reporter:
              sorvig Morten Sørvig
              Votes:
              11 Vote for this issue
              Watchers:
              20 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

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