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[ChangeLog][Styles] The Default style was renamed to Basic to account
for the introduction of the platform styles (macOS, Windows), which
will be used by default (where possible) when no style is specified.
Fixes: QTBUG-85984
Task-number: QTBUG-68814
Task-number: QTBUG-86403
Change-Id: I22b3199c8662e4ee5d55a1be1a51c9856ac62376
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
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In Qt 5, QtQuickControls2Plugin::registerTypes() was responsible for
calling initializeTheme() on each style plugin. Now that we delegate
more work to the QML engine, each style plugin calls initializeTheme()
via registerTypes().
To avoid fallback styles overwriting font and palette data set by the
current style, we need to check if the theme has been intialized before
calling initializeTheme(). To do this, we add a static
"themeInitialized" bool that QQuickStylePlugin sets to true after
calling intializeTheme() for the first time. It checks this value and
avoids calling intializeTheme() if it's true.
We also need to make QQuickStylePlugin ensure that the theme it's
initializing belongs to the current style.
Fixes: QTBUG-86303
Change-Id: Ie65e646677c78622829f4949c41cb79204cf5786
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
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The following code
import QtQuick
import QtQuick.Controls.Material
ApplicationWindow {
width: 200
height: 200
visible: true
}
produced an error in Qt 5:
QQmlApplicationEngine failed to load component
qrc:/main.qml:4 ApplicationWindow is not a type
In Qt 6, the types are provided by the qmldir, so the import will work,
but as QtQuickControls2Plugin has not been loaded, there is no
QQuickTheme object yet, and so the style will not work as expected
(any colors, fonts, etc. from the theme will not be used by the
style).
Produce a warning for this scenario, and test each style to make sure
that we don't crash.
Fixes: QTBUG-86280
Change-Id: I99f940255f56da0522ad192ae5da4c9110ea308e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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These are no longer needed.
Change-Id: I1e6d6d2917fb8504e864620a8214cf6b6f060b60
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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These files should now be automatically generated by both qmake and
cmake.
Task-number: QTBUG-82922
Change-Id: I3ba754bb343123442c7d56c9caf770a979489c7d
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Task-number: QTBUG-82922
Change-Id: I75f4a553a6bb260f77bfa791f12fa42e80131e09
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Task-number: QTBUG-82922
Change-Id: I2eb924eaaaddbe75d342f59f5fb3cd30c4a84fef
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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This patch completes the cumulative work done in previous patches.
- Uses qmlRegisterModuleImport() to register styles. This has some
added requirements:
- Each style must now be a QML module -- that is, it must have a
qmldir file.
- As a result of the above, the module must be available within the
QML import path in order to be found.
- The various forms of accepted style names have been reduced down to
one ("Material", "MyStyle", etc). See below for an explanation of
why.
- The following API in QQuickStyle is removed:
addStylePath(), availableStyles(), path(), stylePathList(). These
no longer make sense now that we reuse the existing QML import
system.
- Adds the tst_qquickstyleselector auto test back as "styleimports".
qmlRegisterModuleImport() vs resolvedUrl()
Previously we would use QQuickStyleSelector to select individual
QML files based on which style was set. We'd do this once when
QtQuick.Controls was first imported.
With Qt 6, and the requirement that each style be a proper QML
module, qmlRegisterModuleImport() was introduced. This allows us
to "link" one import with another. For an example of what this
looks like in practice, suppose the style was set to "MyStyle",
and the fallback to "Material". The "QtQuick.Controls" import
will be linked to "MyStyle", "MyStyle" to
"QtQuick.Controls.Material", and as a final fallback (for controls
like Action which only the Default style implements),
"QtQuick.Controls.Material" to "QtQuick.Controls.Default".
This is the same behavior as in Qt 5 (see qquickstyleselector.cpp):
// 1) requested style (e.g. "MyStyle", included in d->selectors)
// 2) fallback style (e.g. "Material", included in d->selectors)
// 3) default style (empty selector, not in d->selectors)
This is a necessary step to enable compilation of QML to C++.
Reducing the set of accepted style names
The problem
In QtQuickControls2Plugin() we need to call
QQuickStylePrivate::init(baseUrl()) in order to detect if the style
is a custom style in QQuickStyleSpec::resolve() (by checking if the
style path starts with the base URL). In Qt 5, init() is called in
QtQuickControls2Plugin::registerTypes(), but in Qt 6 that's too
late, because we need to call qmlRegisterModuleImport() in the
constructor. qmlRegisterModuleImport() itself requires the style to
have already been set in order to create the correct import URI
("QtQuick.Controls.X" for built-in styles, "MyCustomStyle" for
custom styles).
The solution
By reducing the valid forms for style names down to one:
./myapp -style MyStyle
we solve the problem of needing baseUrl() to determine if the
style is a custom style or not, but needing to call it too early
(since we now call qmlRegisterModuleImport() in
QtQuickControls2Plugin(), which itself requires the style to have
already been set). baseUrl() can't have been set before the
constructor is finished.
All of the various forms for _setting_ a style are still valid;
environment variables, qtquickcontrols2.conf, etc.
[ChangeLog][Important Behavior Changes] Custom styles must now have
a qmldir that lists the files that the style implements. For example,
for a style that only implements Button:
---
module MyStyle
Button 1.0 Button.qml
---
In addition, there is now only one valid, case-sensitive form for style
names: "Material", "MyStyle", etc.
These changes are done to help enable the compilation of QML code to
C++, as well as improve tooling capabilities.
[ChangeLog][Important Behavior Changes] The following API was removed:
- QQuickStyle::addStylePath()
- QQuickStyle::availableStyles()
- QQuickStyle::path()
- QQuickStyle::stylePathList()
- QT_QUICK_CONTROLS_STYLE_PATH
This API is no longer necessary and/or able to be provided now that
styles are treated as regular QML modules.
Task-number: QTBUG-82922
Change-Id: I3b281131903c7c3c1cf0616eb7486a872dccd730
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Task-number: QTBUG-82922
Change-Id: I34e9f32d5f695aaac7acf6b4aac30e8a2311e0cf
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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This is required in order to move away from imperative registration.
Some styles do not have implementations for all types, in which case
they fall back to the Default style. The list of those types are:
AbstractButton 2.0 AbstractButton.qml
Action 2.3 Action.qml
ActionGroup 2.3 ActionGroup.qml
ButtonGroup 2.0 ButtonGroup.qml
Container 2.0 Container.qml
Control 2.0 Control.qml
ScrollView 2.2 ScrollView.qml (except Imagine)
Task-number: QTBUG-82922
Change-Id: If51c8232d7a8b12f6d1f988cc7ce2d8edca1e467
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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As of Qt 6, the latest version will be used by default. This saves us a
lot of effort in terms of version bumps.
Task-number: QTBUG-82922
Change-Id: I74eba8185ec3ccc75bc293d4b2ea87d59e2d9928
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
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Qt Quick Controls 1 will be removed in Qt 6, so now we can have the
simplified path for ourselves.
Having the .2 in the path causes issues for importing now that the
version is being bumped to 6.
Task-number: QTBUG-82922
Change-Id: I0b92cdd44c42c19b1c82e7b9a7959b86ac26c6e2
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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Adapt to the new way of registering C++ types. The types need to be
seen at compile time so that code can be generated that invokes them.
This patch:
- Adds QML_* macros where applicable.
- Adapts the build system files to the new way of registering modules.
- Splits up the QtQuick.Controls[.*].impl files into their own plugins,
as we can only register one QML module per .pro file.
- Removes C++ type registration calls in every plugin.
- Moves private types from src/quickcontrols2/quickcontrols2.pro
to src/quickcontrols2/impl/quickcontrols2-impl.pro. Some of these
types need to be exposed to QML, but quickcontrols2.pro is already in
use to declare the QtQuick.Controls import (and also provides the
public C++ QQuickStyle API), and the new QML_IMPORT_NAME/VERSION
syntax only allows one module per project. As some of the types that
need to be exposed to QML are also referenced by some C++ code (e.g.
tests, etc.), we just move all of the private types to the new
library.
Follow-up patches will register the QML types declaratively.
Task-number: QTBUG-82922
Change-Id: Iaf9ee106237d61701d57a8896f3822304c8151a6
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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In upcoming patches, we start registering C++ types declaratively.
A condition of doing so requires that each .pro corresponds to one
QML module. This conflicts with the QtQuick.Controls import, which
currently does quite a lot:
- Registers (and selects) QML files for the style that was set
- Registers private C++ utility types (such as IconLabel) that are
useful for all styles under the QtQuick.Controls.impl import
- Registers private C++ types that are only useful for the Default
style (such as BusyIndicatorImpl).
The reason it does so much can probably be explained by the
intended usage of Qt Quick Controls 2; when you do
import QtQuick.Controls 2.0
you get access to the QML types (e.g. Button) that the style
you're using provides. So if you're using the Material style,
you'll get a Material style button. API-wise, the button is
identical to any other button, because the types in
QtQuick.Templates are what we advertise as the public API.
If we didn't have this functionality, users would need to
import specific style imports to use controls, and the
convenience of being able to simply start the application
with a different style by e.g. passing an application argument
would be lost.
To support declarative registration of types while also supporting
the existing use cases, we split out the Default-style-specific
stuff into a QtQuick.Controls.Default import.
Task-number: QTBUG-82922
Change-Id: Ib4f1620cae78d7acdc13d9ac0752a020bc22f3ea
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
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