Qt wiki will be updated on October 12th 2023 starting at 11:30 AM (EEST) and the maintenance will last around 2-3 hours. During the maintenance the site will be unavailable.
QML1-vs-QML2: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
(Updated links to latest documentation) |
||
| (5 intermediate revisions by 3 users not shown) | |||
| Line 1: | Line 1: | ||
= | {{Cleanup | reason=Auto-imported from ExpressionEngine.}} | ||
[[Category:QtEcosystemTeamTasklist]] | |||
The idea of this wiki page is to have a | = QtQuick 1 vs QtQuick = | ||
== work in progress == | |||
The idea of this wiki page is to have a "some how" porting guide for customers, having a Qt 4.8/QtQuick 1 application, to get a Qt5/QtQuick 2 application. The focus is on the QML part, not the c++ part. What are new elements, which elements are deprecated, what needs to be changed. | |||
ideas from Girish: | ideas from Girish: | ||
# The change in javascript engines. | # The change in javascript engines. | ||
# | # What's changed in the js syntax in QML2 (if any) | ||
# C++ api changes | # C++ api changes - like how does we create items these days? How is it different from QML1 | ||
# Dependency on GLES2 unlike QML1 | # Dependency on GLES2 unlike QML1 | ||
For porting an existing QtQuick 1 application to QtQuick 2 and make use of new features of QtQuick 2, there are some changes in the | For porting an existing QtQuick 1 application to QtQuick 2 and make use of new features of QtQuick 2, there are some changes in the QML files necessary, which are listed below. | ||
{| class=" | {| class="wikitable" | ||
! | ! QtQuick 1 | ||
! | ! QtQuick 2 | ||
|- | |- | ||
| import QtQuick 1.0 | | import QtQuick 1.0 | ||
| import QtQuick 2.0 | | import QtQuick 2.0 | ||
|- | |- | ||
| import Qt.labs.particles 1.0 | | import Qt.labs.particles 1.0 | ||
| import QtQuick.Particles 2.0 | | import QtQuick.Particles 2.0 | ||
|- | |- | ||
| import Qt.labs.shaders 1.0 | | import Qt.labs.shaders 1.0 | ||
| import QtQuick 2.0 | | import QtQuick 2.0 | ||
|- | |- | ||
| import QtQuick 1.0 | | import QtQuick 1.0 | ||
| import QtQuick.XmlListModel 2.0 | | import QtQuick.XmlListModel 2.0 | ||
|- | |- | ||
| import QtMobility.location 1.2 | | import QtMobility.location 1.2 | ||
| import QtLocation 5.0 | | import QtLocation 5.0 | ||
|- | |- | ||
| import QtMobility.sensors 1.3 | | import QtMobility.sensors 1.3 | ||
| import QtSensors 5.0 | | import QtSensors 5.0 | ||
|- | |- | ||
| import QtMobility.systeminfo 1.1 | | import QtMobility.systeminfo 1.1 | ||
| import QtSystemInfo 5.0 | | import QtSystemInfo 5.0 | ||
|- | |- | ||
| import QtMultimediaKit 1.1 | | import QtMultimediaKit 1.1 | ||
| import QtMultimedia 5.0 | | import QtMultimedia 5.0 | ||
|- | |- | ||
| ./qmlviewer | | ./qmlviewer | ||
| ./qmlscene | | ./qmlscene | ||
|} | |} | ||
For a more detailed list of changes in QtQuick 2, see [http://doc.qt.io/qt-5.0/qtquick2-whatsnew.html | For a more detailed list of changes in QtQuick 2, see [http://doc.qt.io/qt-5.0/qtquick2-whatsnew.html What's New in Qt Quick 2] | ||
See also the Qt documentation's [http://doc.qt.io/qt-5.0/qtquick-porting-qt5.html porting guide] | |||
A description, how to port your Qt 4.x application to Qt 5 is [http://wiki.qt.io/Transition_from_Qt_4.x_to_Qt5 here] | |||
New QML elements in QtQuick2: | |||
* [http://doc.qt.io/qt-5/qtquick-effects-particles.html Particles] A new Particle system | |||
* [http://doc.qt.io/qt-5/qml-qtquick-shadereffect.html ShaderEffect] - A new Shader effects system | |||
* [http://doc.qt.io/qt-5/qml-qtquick-canvas.html Canvas] - Provides a 2D canvas element | |||
* [http://doc.qt.io/qt-5/qml-qtquick-canvasgradient.html CanvasGradient] - Context2D opaque CanvasGradient interface | |||
* [http://doc.qt.io/qt-5/qml-qtquick-context2d.html Context2D] - The Context2D API allows you to draw 2d graphic shapes on the Canvas item. | |||
* [http://doc.qt.io/qt-5/qml-qtquick-textmetrics.html TextMetrics] - Context2D TextMetrics interface | |||
* [http://doc.qt.io/qt-5/qml-qtquick-multipointtoucharea.html MultiPointTouchArea] - Enables handling of multiple touch points | |||
* [http://doc.qt.io/qt-5/qml-qtquick-touchpoint.html TouchPoint] - The TouchPoint element describes a touch point in a MultiPointTouchArea | |||
* [http://doc.qt.io/qt-5/qml-qtquick-pathanimation.html PathAnimation] - Animates position along a path | |||
* [http://doc.qt.io/qt-5/qml-qtquick-pathinterpolator.html PathInterpolator] - Allows manual animation along a path | |||
* [http://doc.qt.io/qt-5/qml-qtquick-animationcontroller.html AnimationController] - Allows manual control of animation progress | |||
* [http://doc.qt.io/qt-5/qml-qtquick-patharc.html PathArc] - Defines an arc in a Path | |||
* [http://doc.qt.io/qt-5/qml-qtquick-pathcurve.html PathCurve] - Defines a point on a Catmull-Rom curve in a Path | |||
* [http://doc.qt.io/qt-5/qml-qtquick-pathsvg.html PathSvg] - Defines a sub-path specified as a SVG path data string in a Path | |||
* [http://doc.qt.io/qt-5/qml-qtquick-accessible.html Accessible] - Attached property to make components accessible | |||
* [http://doc.qt.io/qt-5/qml-qtquick-animatedsprite.html AnimatedSprite] - The AnimatedSprite element draws a sprite animation | |||
* [http://doc.qt.io/qt-5/qml-qtquick-sprite.html Sprite] - The Sprite element represents a sprite animation | |||
* [http://doc.qt.io/qt-5/qml-qtquick-spritesequence.html SpriteSequence] - The SpriteSequence element draws a sprite animation | |||
* [http://doc.qt.io/qt-5/qml-qtquick-dragevent.html DragEvent] - The DragEvent object provides information about a drag event. | |||
* [http://doc.qt.io/qt-5/qml-qtquick-droparea.html DropArea] - The DropArea item provides drag and drop handling. | |||
QML element not available in QtQuick 2 anymore: | |||
Latest revision as of 22:13, 18 March 2018
| This article may require cleanup to meet the Qt Wiki's quality standards. Reason: Auto-imported from ExpressionEngine. Please improve this article if you can. Remove the {{cleanup}} tag and add this page to Updated pages list after it's clean. |
QtQuick 1 vs QtQuick
work in progress
The idea of this wiki page is to have a "some how" porting guide for customers, having a Qt 4.8/QtQuick 1 application, to get a Qt5/QtQuick 2 application. The focus is on the QML part, not the c++ part. What are new elements, which elements are deprecated, what needs to be changed.
ideas from Girish:
- The change in javascript engines.
- What's changed in the js syntax in QML2 (if any)
- C++ api changes - like how does we create items these days? How is it different from QML1
- Dependency on GLES2 unlike QML1
For porting an existing QtQuick 1 application to QtQuick 2 and make use of new features of QtQuick 2, there are some changes in the QML files necessary, which are listed below.
| QtQuick 1 | QtQuick 2 |
|---|---|
| import QtQuick 1.0 | import QtQuick 2.0 |
| import Qt.labs.particles 1.0 | import QtQuick.Particles 2.0 |
| import Qt.labs.shaders 1.0 | import QtQuick 2.0 |
| import QtQuick 1.0 | import QtQuick.XmlListModel 2.0 |
| import QtMobility.location 1.2 | import QtLocation 5.0 |
| import QtMobility.sensors 1.3 | import QtSensors 5.0 |
| import QtMobility.systeminfo 1.1 | import QtSystemInfo 5.0 |
| import QtMultimediaKit 1.1 | import QtMultimedia 5.0 |
| ./qmlviewer | ./qmlscene |
For a more detailed list of changes in QtQuick 2, see What's New in Qt Quick 2
See also the Qt documentation's porting guide
A description, how to port your Qt 4.x application to Qt 5 is here
New QML elements in QtQuick2:
- Particles A new Particle system
- ShaderEffect - A new Shader effects system
- Canvas - Provides a 2D canvas element
- CanvasGradient - Context2D opaque CanvasGradient interface
- Context2D - The Context2D API allows you to draw 2d graphic shapes on the Canvas item.
- TextMetrics - Context2D TextMetrics interface
- MultiPointTouchArea - Enables handling of multiple touch points
- TouchPoint - The TouchPoint element describes a touch point in a MultiPointTouchArea
- PathAnimation - Animates position along a path
- PathInterpolator - Allows manual animation along a path
- AnimationController - Allows manual control of animation progress
- PathArc - Defines an arc in a Path
- PathCurve - Defines a point on a Catmull-Rom curve in a Path
- PathSvg - Defines a sub-path specified as a SVG path data string in a Path
- Accessible - Attached property to make components accessible
- AnimatedSprite - The AnimatedSprite element draws a sprite animation
- Sprite - The Sprite element represents a sprite animation
- SpriteSequence - The SpriteSequence element draws a sprite animation
- DragEvent - The DragEvent object provides information about a drag event.
- DropArea - The DropArea item provides drag and drop handling.
QML element not available in QtQuick 2 anymore: