Commit Graph

478 Commits (67284763e7ce0d12650b652e92dfd022a8affb1d)

Author SHA1 Message Date
Yuhang Zhao 67284763e7 HiDPI: fix wrong window size after DPI change
Current code doesn't take the custom margins into account,
it will cause windows with custom margins have wrong size
after DPI change.

Amends commit 2cfca7fd19

Pick-to: 6.5 6.4
Change-Id: I80b01c030a63d02cf66f105785df7c3f590481b5
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2022-12-14 02:33:26 +08:00
Yuhang Zhao 732d073351 Windows QPA: Always apply system background color for top level window
This is a follow-up patch of commit 2991c66b75

We can unset the window background brush and always draw the background
ourself. Qt always paint all pixels anyway when blt'ing the backingstore,
so it should be safe to do this.

Since a theme might not provide a palette (e.g. when desktop setting
awareness is disabled), always use the default application palette.

Change-Id: I4fdc2467b3cc3999dd1acfe9411cec077ca66bd3
Reviewed-by: Yuhang Zhao <2546789017@qq.com>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-12-05 15:55:53 +01:00
Volker Hilsheimer b3dbfdd597 Windows: Reduce warning output when creating a new window
Amends f32aa06f4f, which called
setDarkBorderToWindow with false when creating a window if windows is
not running in dark mode. This generates warning messages on Windows 10.

We don't have to call the setter at all unless we want dark mode frames,
so skip it if we'd call it with 'false', as that is the default anyway.

At the same time, use categorized logging for these messages; they are
not the result of application developers doing something wrong, and are
only interesting when analysing specific issues.

Change-Id: If80028d71cc2cd9d6dd380976e00b736741287cb
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2022-12-05 15:55:53 +01:00
Volker Hilsheimer f32aa06f4f Windows: Reevaluate dark frames if the application palette changes
Since 5ea7e3a811 we are using dark window
frames if the default palette is dark, unless applications explicitly
override dark frame support.

If the palette changes during runtime, we didn't reevaluate that
setting. Do that by handling ApplicationPaletteChange events in
QWindowsWindow. We still have to respect an explicit opt-out.

Simplify the code at the call sites of setDarkBorder(), we don't need
to check all the time whether the application has opted out of dark
frame support.

Pick-to: 6.4
Task-number: QTBUG-72028
Change-Id: I94e7d33cd21f9656ca210b43e775f487abc25b54
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2022-11-26 14:07:23 +00:00
Santhosh Kumar 2991c66b75 Apply system background color for top level window
Repaint top level window with system background color when it shows up
first time. The system background color will be affected by dark or
light mode settings in windows

Fixes: QTBUG-106583
Pick-to: 6.4
Change-Id: I9205335540e74e90bb068e30fc3d4db037fd580f
Reviewed-by: Yuhang Zhao <2546789017@qq.com>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-11-15 12:28:50 +01:00
Yuhang Zhao bea5649cd1 Windows: bump NTDDI_VERSION to latest version and remove some duplicated code
We have NTDDI_WIN10_NI (0x0A00000C) in the Win11 SDK (10.0.22621)
so bump the value in Qt (currently 0x0A00000B) to it.

And when searching for _WIN32_WINNT/WINVER/NTDDI_VERSION throughout
the whole qtbase codebase, I found some duplicated code, mostly
leftovers from the legacy time. Replace them with our own windows
header can achieve the same effect: we have defined all the necessary
macros to unblock the latest features. And place the header at the
top most place to include the macros as early as possible.

Change-Id: I37d9ac40ca9748208c7b2e89f374eda362dbefd6
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2022-10-24 13:22:24 +08:00
Tor Arne Vestbø 836c7f2b30 Windows: Align QWindowsWindow logging category name with other platforms
Other platforms name it singular 'qt.qpa.window'.

Change-Id: I668ed67e1686605fe5f77313c7a01c31fd574c32
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2022-08-16 09:35:15 +02:00
Yuhang Zhao 8a0e0f8cc1 QtBase: Windows: Replace some deprecated API usages
Microsoft recommends to use CoInitializeEx()
and SetWindowLongPtr()/GetWindowLongPtr() in new code.

Use COINIT_DISABLE_OLE1DDE to avoid overhead of
initializing and using obsolete technology.

Pick-to: 6.4
Change-Id: I9d16943e864d4487dd4f46fd9325579c298c52b9
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2022-08-03 23:24:21 +08:00
Volker Hilsheimer 5ea7e3a811 Windows: better handling of darkmode support
43ef22045c turned dark mode support on for
both styling and window frames. However, the default palette and style
support in Qt is too incomplete, resulting in unreadable UIs when using
certain styles (e.g. fusion). Also the vista style is not supporting
dark mode.

If we don't turn on dark style support, then dark frame support doesn't
look good either. However, many application developers have implement a
dark theme themselves, and we should have a dark frame for those
applications.

So partially revert 43ef22045c so that
dark style support is disabled by default, and leave dark frame support
on. However, only activate dark frames if the palette is dark, i.e. if
the window background color in the default palette is darker than the
text color (or if DarkModeStyle is explicitly turned on by running the
application with -platform windows:darkmode=2).

This way, dark-themed applications get a dark frame on dark Windows, and
a light frame on light Windows; and light-themed applications (including
default Qt applications) get a light frame all the time.

Fixes: QTBUG-72028
Pick-to: 6.4
Change-Id: I61f1b1e43b2a4ba69848d5d8bec921c0790fe511
Reviewed-by: Marius Kittler <mariuskittler@gmx.de>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2022-07-19 05:12:05 +02:00
Tor Arne Vestbø 845ea89211 Revert "Windows QPA: Add MSWindowsNoRedirectionBitmap flag"
This reverts commit 417bb46352.

The API addition was premature, as it can potentially be handled
by the platform plugin automatically, and if not, should possibly
live in QSurfaceFormat instead.

Change-Id: I5c7050ce9c50b6c6a93ddfa6d2e842db0b9eed0d
Reviewed-by: Yuhang Zhao <2546789017@qq.com>
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2022-07-14 13:24:43 +00:00
Yuhang Zhao 417bb46352 Windows QPA: Add MSWindowsNoRedirectionBitmap flag
This flag will be useful for windows that only use
3D graphics API to do the rendering, such as Qt Quick
applications.

As a drive-by, fix a typo in the above line.

Pick-to: 6.4
Change-Id: Ic6edcb7610055693734a5d5aff5e906991d4b911
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2022-07-14 13:00:11 +08:00
Yuhang Zhao 100d5bd582 Windows: Fix OpenGL window's screen
The "GpuDescription::detect().gpuSuitableScreen" is a device
name like "\\.\DISPLAY1", not a user-friendly name.

Amends commit qtbase/75f22702933bad4f0da2b63a94ea183021771e4c

Pick-to: 6.4
Change-Id: I525ecd026f3ee3bc467834449ae023ebfa1138c1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-07-06 00:31:47 +08:00
Tor Arne Vestbø 97665c9615 Windows: Don't rely on top level QWindow to scale children on DPI change
The native size of a QWindow on Windows is the logical size of the window
times the window's device pixel ratio. We manage this relationship
for top level windows via the WM_GETDPISCALEDSIZE message, and during
WM_DPICHANGED we then applied the same scale to child windows.

This is problematic in the case where a child window does not have
a QWindow parent, so instead of scaling all children when the parent
gets a WM_DPICHANGED message, we scale each individual child in the
child's WM_DPICHANGED_AFTERPARENT message.

Task-number: QTBUG-103383
Pick-to: 6.4
Change-Id: Ia0845aa19a3bb97b7bc9e7d9554ac02b95ca65a5
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-06-30 00:28:35 +02:00
Tor Arne Vestbø 7d2488280e Windows: Avoid accidentally copying QWindowsScreenManager
Pick-to: 6.2 6.3 6.4
Change-Id: I60b219e9a3ea62a96c369ee910eacf06d61f4f71
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2022-06-20 20:56:59 +02:00
Yuhang Zhao 1e71071c92 Windows QPA: Fix indention
It seems this block of code was originally copied from elsewhere
so the original indention is preserved.

Pick-to: 6.4
Change-Id: I53ab8e58b4304dfc768bd6472255a6c2d0471d5e
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-06-19 10:29:56 +08:00
Axel Spoerl 99c8ffb9f2 Update window state in QWindowsWindow and QXcbWindow geometry setters
When QWidget::resize() is called on a maximized or minimized QWidget,
the window state of the widget and the corresponding QWindow is not
updated (i.e. remains maximized or minimized).

This patch updates the window state to Qt:WindowNoState when
setGeometry() is called in QWindowsWindow or QXcbWindow.

A test is added in tst_QWidget.

Fixes: QTBUG-104201
Pick-to: 6.4
Change-Id: I07491fb9293d13509573fc403750da0a50f6a785
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-06-17 18:59:22 +00:00
Morten Sørvig 077eddb3e1 Windows QPA: Update screen on child window DPI change
Windows does not send WM_DPICHANGED to child windows, which means
that the normal DPI change handling code does not run for QWindows
which are embedded in a foreign, non-Qt, window.

Add code which handles WM_DPICHANGED_AFTERPARENT. This event is
sent to all child windows, but not the top-level window. Call
checkForScreenChanged() here, similar to what the WM_DPICHANGED code
does.

This commit does not add code to resize the child window, since
it is uncertain if this is the responsibility of the window which
receives WM_DPICHANGED, or of each child window.

Done-with: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Pick-to: 6.4
Task-number: QTBUG-103383
Change-Id: Icf85dd0afa806609dbbe0ffc36efbc5127962c39
Reviewed-by: <stefan.wastl@native-instruments.de>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2022-06-16 23:01:04 +02:00
Kai Köhne 9d2cc4dd76 Fix typos in docs and comments
Found by codespell

Pick-to: 6.4
Change-Id: Ie3e301a23830c773a2e9aff487c702a223d246eb
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2022-06-15 21:31:02 +02:00
Lucie Gérard 05fc3aef53 Use SPDX license identifiers
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>
2022-05-16 16:37:38 +02:00
Morten Sørvig 83779c858b Windows QPA: Send screen change before geometry change
Fix bug where the device independent QWindow size was
set incorrectly, due to usage of incorrect screen and
scale factor. This could happen when a window's screen
was set to QGuiApplication::primaryScreen() as a fallback,
before QWindowsWindow::initialize() would determine the
correct screen.

By sending the screen change first we make sure that
that QWindowSystemInterface::handleGeeometryChange()
uses the correct screen for the window.

Change-Id: I5520ae67a4db60903d38db856fc314c75a3c0219
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Piotr Srebrny <piotr.srebrny@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2022-05-10 13:51:04 +00:00
André de la Rocha 58d4645661 Windows: Fix pop-up windows being incorrectly moved to primary display
Amends a previous workaround used with AMD graphic adapters, which under
some circumstances could incorrectly move pop-up windows and cause
issues with menus.

Fixes: QTBUG-97533
Pick-to: 6.2 6.3
Change-Id: Icc83198913b0e78ae3d7c0679e46f8b46b7015bf
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2022-05-05 01:17:38 +02:00
Yuhang Zhao 540745e599 Windows QPA: Add convenient overload to query window frame
To be used in a later commit.

As a drive-by, return early in the frameOnPrimaryScreen
overload to avoid calling GetWindowLong in cases we
don't need them.

Pick-to: 6.3 6.2
Change-Id: Ia69f4acbbf3e044073f818f357e614d4c6680d21
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2022-03-01 13:08:03 +08:00
Yuhang Zhao 7261c81152 Windows QPA: fix window style correction for context help button
According to Microsoft Docs [1][2], WS_MINIMIZEBOX and WS_MAXIMIZEBOX
must be accompanied by the WS_SYSMENU style, and the WS_EX_CONTEXTHELP
style is not compatible with WS_MINIMIZEBOX and WS_MAXIMIZEBOX. This
patch adds additional checks for these situations.

[1] https://docs.microsoft.com/en-us/windows/win32/winmsg/window-styles
[2] https://docs.microsoft.com/en-us/windows/win32/winmsg/extended-window-styles

Pick-to: 6.3 6.2
Change-Id: If32f8b42e25cfc67ffd1e84cc4b061f21a01042a
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2022-03-01 12:29:36 +08:00
Yuhang Zhao 770ea68588 Windows QPA: Use less magic number
The correct calculation of the invisible frame margin and the window
border width (they are the same thing actually) is the thickness
of the size frame plus the thickness of the padded border. When
DPI is 96, both of them is 4px and thus the invisible frame margin
and window border width is 8px. So previously the empirical
magic number can work normally is because the error is very small.
It's not a big thing because even on a high DPI screen the error
is still very small. For example, on my 4K monitor with 200%
scaling, the error is only 2px, human eyes almost can't find the
visual difference. But since we now know how to calculate these
values correctly, let's use the correct calculation instead. The
magic numbers and empirical expressions just make people confused.

Pick-to: 6.3 6.2
Change-Id: Ieda4796231935f2ad1b6f28e4aa4af5b5bce2256
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2022-03-01 09:11:51 +08:00
Yuhang Zhao 56fa390d72 Windows QPA: More debug enhancements
Pick-to: 6.3
Change-Id: Ibf03fa82f14cf704267b85348ce11ee2d505ff24
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2022-02-25 09:30:35 +08:00
Viktor Arvidsson cfe421cee2 Windows QPA: Calculate window frame for frameless windows the same for all code paths
When we add the WS_THICKFRAME/WS_CAPTION window flags to a
frameless window the return value of AdjustWindowRectEx is no
longer 0. This works fine when creating the window since the version
of QWindowsGeometryHint::frame used during creation checks the
FramelessWindowHint, however later when the window changes
screen, the screen change code checks the fullFrameMargins which
uses a version of QWindowsGeometryHint::frame that does not
early out, causing a missmatch in the geometries of the backing
store and platform window.

This fixes aero snapping shortcuts for frameless windows on multi
monitor setups.

Fixes: QTBUG-84466
Pick-to: 6.2 6.3
Change-Id: I2357ea32669e4676645549996a3ac6073f3df15c
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2022-02-22 18:03:11 +00:00
Viktor Arvidsson 7794421bea Windows QPA: Correct mistake when calculating minmaxinfo
Amends 46e9852a1d

The previous code would fail if the windows taskbars are placed
to the top or left on the screen. The mistake was missed because
Windows seems to adjust the window position automatically
in case the window handles WM_NCCALCSIZE and returns 0,
which was the case for me.

Task-number: QTBUG-51327
Pick-to: 5.15 6.2 6.3
Change-Id: I38ef974f7518be63a0bacf080f3359c219284078
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2022-02-14 23:48:23 +01:00
Viktor Arvidsson 46e9852a1d Windows QPA: Fix frameless maximize on secondary screens
Frameless windows shouldn't cover the taskbar when maximized.
This has been fixed for the main screen in the past but did not
work for secondary screens. According to the code the MINMAXINFO
is only available for the main screen but I believe this is a
misunderstanding of the Windows documentation.  Besides
we use QScreen::availableGeometry() which seems to be correct.

Fixes: QTBUG-51327
Pick-to: 5.15 6.2 6.3
Change-Id: Ib2205c480359d1a870dcfcf0312fbe417f650e28
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2022-02-11 23:05:20 +01:00
Yuhang Zhao 18bc5d652f Windows QPA: Enhance debug information
https://docs.microsoft.com/en-us/windows/win32/winmsg/window-styles
https://docs.microsoft.com/en-us/windows/win32/winmsg/extended-window-styles
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-setwindowpos

Change-Id: I54392b36c52c4318c0d2d5489bbfd582ff7bccb3
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-12-17 13:18:22 +08:00
Yuhang Zhao 5d12942676 Windows QPA: Correctly respond to WM_ERASEBKGND
According to Microsoft Docs [1], applications should
return non-zero in response to WM_ERASEBKGND if it
processes the message and erases the background and
that's indeed the case for Qt.

Although I can't see any visual difference, this patch
obeys the official documentation at least.

[1] https://docs.microsoft.com/en-us/windows/win32/winmsg/wm-erasebkgnd

Pick-to: 6.3 6.2
Change-Id: I8aa0bfb25259013bfc2ca4074f05a97c7865159c
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-12-15 13:02:39 +08:00
Friedemann Kleint 9ad00e4b3f Windows QPA: Fix cursors getting out of sync after restoring override cursors on native windows
Introduce a flag to QWindowsWindow which forces the cursor to be applied
after restoring override cursors.

Fixes: QTBUG-98856
Pick-to: 6.2 5.15
Change-Id: Id62cdc2dd01f45324503a542446b1c11a1fe6f44
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Keith Kyzivat <keith.kyzivat@qt.io>
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2021-12-08 23:41:24 +01:00
Yuhang Zhao e75b1dfe38 Windows QPA: Further cleanup of pre-Win10 code
Mostly a removal of dynamically loaded Win32 APIs.
Since Qt 6's minimum supported platform is Win10 1809
(10.0.17763, code name RS5), all these functions will
be available and no need to resolve them at run-time.

Things not remove:
WinTab functions in "qwindowstabletsupport.cpp".
Not my familiar area, so not touch it.

Pick-to: 6.2
Task-number: QTBUG-84432
Change-Id: I7ad6c3bc8376f6c0e3ac90f34e22f7628efeb694
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-11-24 09:16:38 +08:00
Yuhang Zhao 000f1ee360 Windows QPA: Set SWP_NOCOPYBITS during resize to avoid jitter
Allowing Windows to re-use parts of the client area when resizing
might result in jitter. See discussion in:

https://stackoverflow.com/questions/53000291/how-to-smooth-ugly-jitter-flicker-jumping-when-resizing-windows-especially-drag

Fixes: QTBUG-97774
Pick-to: 6.2
Change-Id: Idc8f0d1953dd0a8b329312d8a9fd0509cc24d81f
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2021-11-12 04:59:00 +08:00
Yuhang Zhao 6652bf2353 Bump WINVER, _WIN32_WINNT and _WIN32_IE to _WIN32_WINNT_WIN10 (0x0A00)
And bump NTDDI_VERSION to 0x0A00000B (NTDDI_WIN10_CO) at the same time,
to unblock the developers from accessing the latest Windows APIs.

Pick-to: 6.2
Change-Id: Ifbc28c8f8b073866871685c020301f5f20dc9591
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2021-11-10 20:31:05 +08:00
Morten Johan Sørvig e7371fa159 windows qpa: re-apply 8d6e825d
“Handle invisible child windows gracefully on dpi changes”

This fix was accidentally removed by commit cd96d870
“Move VM_DPICHANGE handling to QWindowsWindow”.

Fixes: QTBUG-96466
Pick-to: 6.2
Change-Id: I3774f6305631ba47282d43e8480e2acaba517a96
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-10-29 15:57:13 +02:00
Jonas Kvinge 79e209c4c3 windows: Fix typos in source code comments
Change-Id: I5d83574639d0b1f935843a75217aae70a5925fa0
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2021-10-12 23:15:45 +02:00
Jonas Kvinge dce874415d QWindowsWindow: Fix typo in documentation
Pick-to: 5.15 6.2
Change-Id: Ib20b2f23e399b295e26b8c29084023e4e1361579
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2021-10-12 12:52:02 +02:00
Morten Johan Sørvig 81707951fe Fix programatic geometry change to different DPI
The event flow for programatic window geometry change
(e.g. from MoveWindow()) differs from user-interactive
geometry change: We still get WM_DPICHANGED, but this
event is not preceded by WM_GETDPISCALEDSIZE, so we don’t
get to override the window size.

However, Qt has already scaled the window size for the
new DPI in this case (the scaled size is provided to
QWindowsWindow::setGeometry()), so we can omit making
second native set-geometry call.

Pick-to: 6.2
Change-Id: Ia7d42d7fee49adf757e7fe75d77f1731405ad519
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2021-10-07 14:22:55 +02:00
Morten Johan Sørvig 2cfca7fd19 Handle WM_GETDPISCALEDSIZE
By handling WM_GETDPISCALEDSIZE we can keep QWindow’s
device independent size constant across DPI changes.
This is done by scaling QPlatformWindow’s native size
such that the change of scale factor and change of
QPlatformWindow size cancels out.

Qt now handles DPI change using two events:

WM_GETDPISCALEDSIZE: Compute the new size for the window.
WM_DPICHANGED: Apply the new DPI and window geometry.

The reason for this complication is that Windows retains
control over the window position during the DPI change,
in order to e.g. accurately track the cursor position
during a screen change.

The default WM_GETDPISCALEDSIZE implementation (provided
by Windows) scales the win32 window size linearly with
the DPI change. We want to use linear scaling as well,
however the win32 window size includes the margins, which
do not change linearly as the DPI changes.

Instead, scale the QPlatformWindow size, and then add
the new margins.

Pick-to: 6.2
Change-Id: I4f225be8fad56b1fa77e9e3cfd6538a206589d73
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2021-10-07 14:22:55 +02:00
Morten Johan Sørvig cd96d87011 Move VM_DPICHANGE handling to QWindowsWindow
We want to have as little code in the QWindowsContext
event switch as possible.

Pick-to: 6.2
Change-Id: I04d578aae81c4ee804310a70bd87ee60b2890b6a
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2021-10-07 14:22:55 +02:00
Gong Weia a2ab67c8b2 qwindowswindow: fix return nullptr
fix return nullptr rather than 0

Change-Id: Ic8e04e5b8bc732a7ffba5a708caee4326abf7168
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-09-28 21:51:26 +08:00
Morten Johan Sørvig 67b2c84992 Make QWindow respect minimumSize again on Windows
Commit 6336b535 accidentally removed a call to
applyToMinMaxInfo(). Add it back.

Task-number: QTBUG-96441
Pick-to: 6.2.0 6.2
Change-Id: I26a5d121ed3b4cd9e49e3dd8b371abe71d9a482c
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2021-09-21 11:10:25 +00:00
Morten Johan Sørvig 6336b5350b Improve WM_DPICHANGED handling
Resize QPlatformWindow on DPI change, so that QWindow
size can stay approximately constant.

For example, a 100x100 QWindow at 100% scaling will
have a 100x100 QPlatformWindow. If the scaling is changed
to 200% then the QPlatformWindow is resized to 200x200,
while the size of the QWindow stays at at 100x100.

In practice the QWindow size will also change slightly,
due to inaccuracies in how we adjust for the size of the
non-client window area. This will be addressed in a later commit.

We can get DPI change independently of screen change,
so no resizing should happen in screen change events.
Disable the resize code in QGuiApplication for Q_OS_WIN,
and remove the WithinDpiChanged flag.

The new flow for handling DPI change is:

  1) Send screen change (if any), so that the correct
     screen will be used when calculating scale factors
     during the following resize.
  2) Resize the native window, which will trigger geometry
     change events, possibly also for the QWindow.
  3) Resize child windows; WM_DPICHANGED is sent to
     top-level windows only.

Fixes: QTBUG-89294
Pick-to: 6.2
Change-Id: I0e2d44bae72d20ebdafc3d410db7be9964ad851b
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-08-06 13:02:44 +02:00
Morten Johan Sørvig f988386560 Track current window DPI
The WM_DPICHANGED event gives us the new DPI, but we
also need the current DPI in order to determine the
scale factor corresponding to the DPI change.

Pick-to: 6.2
Change-Id: Ia61388415f57aa739397d3125b8751952e8fd392
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-08-06 13:02:44 +02:00
Yuhang Zhao 2c6bc06267 Windows QPA: Remove DwmIsCompositionEnabled() usages
According to Microsoft Docs [1], DWM composition is always
enabled and can't be disabled since Windows 8. Now that
we are cleaning up pre-Windows 10 code, this apparently
needs to be removed as well.

[1] https://docs.microsoft.com/en-us/windows/win32/api/dwmapi/nf-dwmapi-dwmiscompositionenabled

Task-number: QTBUG-84432
Change-Id: I64dc049e0741600c8d0ae4db0e9e3bc98a211339
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
2021-07-30 01:08:15 +00:00
Friedemann Kleint 341b0ef501 Windows QPA: Fix blurry title icons with fractional scale factor
Request the icon pixmaps with DPR=1.

Fixes: QTBUG-90363
Change-Id: I789a72e2ed3379c81c68e1074069823bf633cf2f
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-01-19 14:17:55 +01:00
Morten Johan Sørvig 9f894788dd Revert "Windows QPA: Call QWSI::flushWindowSystemEvents() from WM_PAINT for full update only"
This reverts commit a81dfb32d6.

Paint immediately on WM_PAINT in all cases in order to
avoid flicker on resize.

The cases mentioned in commit a81dfb should no longer
apply:
  - QTBUG-38327: QGLWidget is not supported in Qt 6.
  - QTBUG-39842: Fixed by using ExcludeUserInputEvents.

Fixes: QTBUG-89688
Change-Id: If82cf7703d6663982769048e86a7060223730ce7
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2021-01-11 14:42:50 +00:00
Laszlo Agocs 97da4519ba Add a dedicated QWindow surface type for D3D
Even though there is no D3D-specific logic in the windows platform
plugin, meaning a QWindow with either OpenGLSurface or VulkanSurface
(or anything really) is DXGI/D3D-compatible, it now looks like it is
beneficial, and more future proof, if there is a dedicated surface
type.

As the linked report shows, there are OpenGL-specific workarounds
accumulated in the platform plugin, while not being clear if these
are relevant to non-OpenGL content, or if they are relevant at all
still. (and some of these can be difficult/impossible to retest and
verify in practice)

When D3D-based windows use the same surface type, all these are
active for those windows as well, while Vulkan-based windows have
their own type and so some of these old workarounds are not active
for those. To reduce confusion, having a dedicated surface type for
D3D as well allows the logic to skip the old OpenGL workarounds,
giving us (and users) a more clear overall behavior when it comes
to OpenGL vs. Vulkan vs. D3D.

The change is compatible with any existing code in other modules
because any code that uses OpenGLSurface for D3D will continue to
work, using the new type can be introduced incrementally.

Task-number: QTBUG-89715
Change-Id: Ieba86a580bf5a3636730952184dc3a3ab7669b26
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2021-01-04 10:37:11 +00:00
Friedemann Kleint d9d18596e2 Windows QPA: Enable toggling Windows transparency
Change QWindowsWindow::format() to return the QWindow's requested
format instead of storing it as do the other platforms. This will
cause the alpha (layered flag) to be adapted in
QWindowsBackingStore::flush(). Note that it does not fix
the issue; the window does not update correctly after
changing WS_EX_LAYERED.

Pick-to: 5.15
Task-number: QTBUG-60822
Change-Id: I3facd93f993b3b422b6818d55c1bce884fb57234
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
2020-09-08 08:02:16 +02:00
Friedemann Kleint 6d4b3582ad Windows QPA: Move dark mode handling to the new interface
Move options to new interface, making them settable from
code on this occasion.

Task-number: QTBUG-83252
Change-Id: Idd80667c502a8cde5d7c66d7e597ea34c22738e7
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2020-07-25 21:59:37 +02:00