Enable by setting QT_WIDGETS_HIGHDPI_DOWNSCALE=1 and QT_WIDGETS_RHI=1.
This will make the backing store and painter operate at the next
highest integer DPR in cases where QWindow::devicePixelRatio() returns
a fractional value. The backing store image will then be downscaled
to the target DPR at flush time, using the RHI flush pipeline.
[ChangeLog][QWidgets] Added experimental support for always
painting at an integer device pixel ratio (rounding the DPR up if
necessary), followed by a downscale to the target DPR.Enable by setting
QT_WIDGETS_HIGHDPI_DOWNSCALE=1 and QT_WIDGETS_RHI=1.
Pick-to: 6.4
Task-number: QTBUG-86344
Change-Id: Id5b834a0e3499818b0b656161f5e0c38a6caa340
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Replace the current license disclaimer in files by
a SPDX-License-Identifier.
Files that have to be modified by hand are modified.
License files are organized under LICENSES directory.
Task-number: QTBUG-67283
Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Make sure configure fails early if a component cannot be found.
Task-number: QTBUG-98867
Pick-to: 6.2 6.3
Change-Id: I4baa35a84342df58ce8932601fb602be92ed5ab9
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Needed for subsequent change that will check and error out if the
version is lower than 3.16. We do that to ensure all policies
introduced by CMake up to version 3.16 have their behavior set to
NEW.
Pick-to: 6.2
Task-number: QTBUG-95018
Change-Id: Ieaf82c10987dd797d86a3fd4a986a67e72de486a
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
ScreenGadget visualizes virtual desktop screen layout,
in device independent and native pixels.
This can be used to debug the (sometimes surprising)
device independent screen geometry resulting from Qt
applying a scale factor.
Change-Id: I5b18e0fc9a54ba3e14d648794429b2eeadd25748
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Display active environment variables. Reorder the
labels with device independent values to the left
and native values to the right. Display the Qt scale
factor.
Change-Id: If95c252b06eff5abd91a25847777246effe94be2
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Move the existing “kitchen sink” test out of the way,
and rename it to “kitchensink”
Change-Id: I121260e640bb2810a94f8112fcea212e97055fb3
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Modify special case locations to use the new API as well.
Clean up some stale .prev files that are not needed anymore.
Clean up some project files that are not used anymore.
Task-number: QTBUG-86815
Change-Id: I9947da921f98686023c6bb053dfcc101851276b5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Clean up the state of the projects,
before changing the internal CMake API function names.
Task-number: QTBUG-86815
Change-Id: I90f1b21b8ae4439a4a293872c3bb728dab44a50d
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Utility for visualizing and debugging high-dpi rendering
using QPainter, at different (fractional) scale factors.
In addition contains prototype code for mitigating
painting artifacts such as drawing outside the clip
rect when scaling.
Change-Id: I44f39315ad9674790d51413dddf41e3a51043da6
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
DprGadget displays the devicePixelRatio for the current
screen using a large friendly font, as well as the
platform and environment inputs used for determining
the DPR.
Change-Id: Id619edad181eb7717f18eb98af341d6582a843a1
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
High-DPI pixmaps are always enabled, and cannot be disabled.
Change-Id: I01a006b404e5431582b64ef812974c1c022b39ae
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This attribute is now on by default.
Change-Id: I7c9d2e3445d204d3450758673048d514bc9c850c
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Two methods that have gone away or been renamed,
an enum that now doesn't support being assigned from int.
QTime should no longer be used as a timer.
Removed a test of deprecated code that's gone away.
Task-number: QTBUG-85700
Change-Id: Idc6d59542625d22b9937084411b54b0d8aa87f00
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The Qt version was added in 5.14 "for use as eventual replacement for
QString::SplitBehavior." Move another step closer to that goal.
Change-Id: I399b5ea56e9255e775ca1746632f7421519a6616
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Turn the Metrics widget into a QTabWidget and add a tab logging
all changed signals of QScreen.
This is useful when for example debugging issues with lock screens and
laptop hibernation.
Task-number: QTBUG-79248
Task-number: QTBUG-76902
Change-Id: Ie86789fe1514cb3333a5f3def7f613f217fa6802
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
The aim is to make it suitable to test for High DPI
bugs, ideally removing the need to provide bug report
examples.
- Add descriptive window titles/output
- Add options to force scaling on/off
- Change the updating of the text to be done in screenChanged()
and log the signal.
- Rearrange the layout and show the descriptions as labels
Task-number: QTBUG-80323
Change-Id: Ia44c184c2b38cb18045c40b440fe785c6c17925f
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
- Use C++ constructs like range-based for, member initialization
- Fix formatting in a few places
- Silence clang warnings:
- Add override
- Make member variables private
Task-number: QTBUG-80323
Change-Id: I5b0fda06acb6c8054aafa4dd934b763f8493a6b3
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Change-Id: I092a26ef38b08c52d84adb027a1b1bdee8cc7f6b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
(cherry picked from commit ce187c4f0e)
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This test displays a summary of relevant DPI and scale
factor/devicePixelRatio values:
- DPI and DPR as seen by the application
- Input from QPlatformScreen
- Input from environment variables.
Task-number: QTBUG-53022
Change-Id: I340391624b202e342f22902ffbd7228fe7fbe94b
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Remove pixelScale() in favor of logicalBaseDpi(). Compute scale factor
based on logical DPI and logical base DPI, or optionally based on the
physical DPI.
Add policies for running the scale factor and adjusting the logical
DPI reported to the application. The policies are set via environment
variables:
QT_SCALE_FACTOR_ROUNDING_POLICY=Round|Ceil|Floor|RoundPreferFloor|PassThrough
QT_DPI_ADJUSTMENT_POLICY=AdjustDpi|DontAdjustDpi|AdjustUpOnly
QT_USE_PHYSICAL_DPI=0|1
Done-with: Friedemann Kleint <Friedemann.Kleint@qt.io>
Task-number: QTBUG-53022
Change-Id: I4846f223186df665eb0a9c827eaef0a96d1f458f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
This is part of the migration of qtbase from QRexExp to
QRegularExpression.
Task-number: QTBUG-72587
Change-Id: I0bb1d1409cb0c8f38b7582bb5ce6bbc2b047b6fc
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
[ChangeLog][qmake] A new feature "cmdline" was added that implies
"CONFIG += console" and "CONFIG -= app_bundle".
Task-number: QTBUG-27079
Change-Id: I6e52b07c9341c904bb1424fc717057432f9360e1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Implement more consistent behavior for drawTiledPixmap(),
which should produce the same visual tiling pattern
independent of display devicePixelRatio
Consider the following pixmaps and draw calls:
QPixmap px32; // 32x32
QPixmap px64; // 64x64
drawTiledPixmap(QRect(0, 0, 128, 128), px32);
drawTiledPixmap(QRect(0, 0, 128, 128), px64);
On 1x displays this will produce 4x4 and 2x2 tiles,
respectively.
On 2x displays this would previously produce a different
tiling pattern, where the paint engine would tile in
the device pixel coordinate system. Change this to
tile in the device independent coordinate system,
producing the same visual tiling pattern as the 1x case.
It is possible to produce a 4x4 tiling pattern with
high-resolution output from the 64x64 pixmap by setting
the devicePixelRatio:
QPixmap px64;
px64.setDevicePixelRatio(2);
drawTiledPixmap(QRect(0, 0, 128, 128), px64);
This change adds an inverse scale to the image filler
transform that accounts for the pixmap devicePixelRatio.
[ChangeLog][QtGui] QPainter::drawTiledPixmap() now
tiles in the device independent coordinate system.
Change-Id: I4918d274192967f222f181b374571c7c597dcd76
Reviewed-by: Jonathan Courtois <jonathan.courtois@gmail.com>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: 石博文 <sbw@sbw.so>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Remaining uses of Q_DECL_OVERRIDE are in:
src/corelib/global/qcompilerdetection.h
src/corelib/global/qglobal.cpp
doc/global/qt-cpp-defines.qdocconf
(definition and documentation of Q_DECL_OVERRIDE)
tests/manual/qcursor/qcursorhighdpi/main.cpp
(a test executable compilable both under Qt4 and Qt5)
Change-Id: Ib9b05d829add69e98a86238274b6a1fcb19b49ba
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Apply the device pixel ratio from the widget unless Shift is pressed.
Task-number: QTBUG-46068
Task-number: QTBUG-50938
Change-Id: Ib806b7e545fa228043566800d22d1002728732bf
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
Add a toggle for setting a triangular mask on the main window.
Task-number: QTBUG-50938
Change-Id: Id4a3ee0b80e170f4ee1d195e60ce7bfa8e524359
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some
exceptions, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one
(in those files which will be under GPL 3 with exceptions)
Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Implement as generic "@Nx" support in an exported
qt_findAtNxFile function.
3x devices now get one extra file existence test
in cases where @3x versions are not present. 1x
devices are still on the fast path where there are
no extra file system accesses.
Add an @3x image to the highdpi manual test.
Change-Id: I4ce3fc245ada01ea410abe1443ceb1e3abf7c17f
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
Use character literals where applicable.
Change-Id: I1a026c320079ee5ca6f70be835d5a541deee2dd1
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Add several new tests to verify that Qt behaves properly when
high-DPI scaling is enabled. Add a generic framework for
manual tests for good measure. This could be refactored and
used for other manual tests later.
Includes tests written by Morten and Friedemann.
Task-number: QTBUG-46615
Change-Id: Ib6762ec1454711e71f0c094b19015932b99e8d6d
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
