| Commit message (Collapse) | Author | Age | Files | Lines |
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They were always meant to be examples eventually. Now they will be used
for an example of how to implement custom controls using only basic
items and handlers. Some components are very similar to those in
the shared directory; but most examples will use Qt Quick Controls,
so those shared components can be removed when we no longer use them.
This example should remain as the one that shows how to build
reusable controls "from scratch".
Removed InputInspector because it's inefficient, has limited usefulness,
tends to require building the manual test to be able to run it, and
could be better built as a reusable Qt.labs component later on,
providing a model with all known devices and taking advantage of the
QPointingDevice::grabChanged signal to track the grab states rather
than polling.
Pick-to: 6.2
Change-Id: I47ab6ebb2cecab07a69cf96e546ffd0db3026a60
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Oliver Eftevaag <oliver.eftevaag@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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If you want to set target: null and then bind translation to some
object's x and y properties directly (perhaps an Item, a Qt Quick 3D
Model object, etc.), it's a lot less trouble to use a translation
property that does not keep changing back to 0,0 every time a gesture
begins. In hindsight, the translation property should have been the
persistent one (for consistency with the fix for QTBUG-68941,
in which we made PinchHandler.scale persistent and added activeScale:
b4d31c9ff5f0c5821ea127c663532d9fc2cae43e). But for several years, the
translation property has been restarting with each gesture; so now we
add a persistentTranslation property. The new activeTranslation property
has the same value as the translation property (which is deprecated).
Also, the persistentTranslation property is settable, because
in some UIs there may be multiple ways to move the same object,
and there needs to be a way to sync them up.
Also fixed a bug: when minimumPointCount == 2,
QQuickMultiPointHandler::wantsPointerEvent() doesn't initialize
d->currentPoints until two points are pressed. But often, one point is
pressed, and in the next event, the second point is pressed while the
first is held Stationary. So QQuickHandlerPoint::reset() needs to set
pressPosition and scenePressPosition on both points at the same time,
because it is called on each HandlerPoint in d->currentPoints at that
time when both points are pressed. So if any point is pressed, act as if
they all were freshly pressed. Without this fix, the centroid's
scenePressPosition is wrong (based on the average of 0,0 and the second
point), therefore a "jump" was occurring when persistentTranslation
is used to directly drive a binding (like the tilt in map.qml).
[ChangeLog][QtQuick][Event Handlers] DragHandler.activeTranslation now
holds the amount of movement since the drag gesture began.
DragHandler.persistentTranslation holds the accumulated sum of
movement that has occurred during subsequent drag gestures, and can
be set to arbitrary values between gestures.
Task-number: QTBUG-94168
Change-Id: I1b2f8ea31d0f6ff55ccffe393bc9ba28c1a71d09
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
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It can be used to change any qreal property of its target Item in
response to wheel rotation, or it can be used in other ways that involve
bindings but without a target item.
[ChangeLog][QtQuick][Event Handlers] Added WheelHandler, which handles
mouse wheel rotation by modifying arbitrary Item properties.
Fixes: QTBUG-68119
Change-Id: I247e2325ee993cc1b91a47fbd6c4ba0ffde7ad49
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
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..when dragging (translation) is disabled
In order to do this, we had to integrate QQuickAxis to the PinchHandler
which allows enabling/disabling x and y axis individually.
This allows us to have one item with PinchHandler with translation
disabled (but to only handle rotate and scale) together with a two-finger
drag handler.
Change-Id: I1581c575ffba2e5d007163bec36e5699bdd86cbc
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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This is important in order for passive grabbers to be in the same order
as if the points were pressed at the same time.
In our case, the problem occurred when we had a single-point DragHandler
together with a two-finger PinchHandler:
* One finger was pressed and moved
=> DragHandler called setPassiveGrab()
=> point0->passiveGrabbers: [DragHandler]
* A second finger was pressed and moved
=> PinchHandler called setPassiveGrab() for both points
=> point0->passiveGrabbers: [DragHandler,PinchHandler]
=> point1->passiveGrabbers: [PinchHandler]
So then as one keeps on dragging the *two* fingers, the DragHandler will
get the chance to do an exclusive grab first, (since its the first listed
passive grabber of point0), and the PinchHandler won't get the opportunity
to grab. This is not expected since their declaration order implies that
the PinchHandler should get a chance to grab first.
Change-Id: I4e82ed186eeb5bf1dae1679d393e5563072175d1
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
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That is, minimumPointCount can now be set to a value > 1 to require
multiple fingers to do the dragging, or to track the displacement
of multiple fingers to adjust some value (such as the tilt of a map).
Task-number: QTBUG-68106
Change-Id: Ib35823e36deb81c8b277d3070fcc758c7c019564
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
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... and clean up imports in examples, snippets and tests accordingly.
Change-Id: I5bbe63afd2614cdc2c1ec7d179c9acd6bc03b167
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
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If you want to set target: null and then bind scale to some sort of
rendering scale property directly, it's a lot less trouble if the
scale property does not keep changing back to 1.0 every time a gesture
begins. Added an activeScale property to represent that value, the
one that the scale property had before.
Task-number: QTBUG-68941
Change-Id: Idcb6735d915a523afe1a948609080af7a83f82ad
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
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The reason for using SVG is to be able to render it quickly at lower
resolutions but with higher quality after zooming in, and it's good
to have an example which demonstrates how.
Change-Id: I04107b724ef5c844c8b3eaa2f46750bd66d7d718
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
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Change-Id: Ib1fe267c23ea9fce9bcc0a91ed61081260338460
Reviewed-by: Liang Qi <liang.qi@qt.io>
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The public-domain map is adapted from https://openclipart.org/detail/67039/
Change-Id: Ia3da049174a38a6cc9e9632eda4f4553ad16d3bf
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>
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