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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit885735d011472bcfbb96e688d9e64553d7fe9d4b (patch)
tree734963625eba643bf11bc4870a4c407809a6400a /src/declarative/QmlChanges.txt
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+=============================================================================
+The changes below are pre Qt 4.7.0 RC1
+
+TextInput
+ - copy(), cut() and paste() functions added
+Font.letterSpacing
+ - was percentage based. Now specified in pixels.
+Item
+ - wantsFocus renamed to activeFocus
+ - forceFocus() renamed to forceActiveFocus()
+ - focus now returns the scoped focus (i.e. focus read/write now manipulate
+ the same value)
+TextInput and TextEdit:
+ - focusOnPress renamed to activeFocusOnPress
+
+=============================================================================
+The changes below are pre Qt 4.7.0 beta 2
+
+QDeclarativeView
+ - initialSize() function added
+TextInput and TextEdit:
+ - openSoftwareInputPanel() and closeSoftwareInputPanel() functions added
+Flickable:
+ - overShoot is replaced by boundsBehavior enumeration
+ - flickingHorizontally and flickingVertically properties added
+ - movingHorizontally and movingVertically properties added
+ - flickDirection is renamed flickableDirection
+Component:
+ - isReady, isLoading, isError and isNull properties removed, use
+ status property instead
+ - errorsString() renamed to errorString()
+ListView:
+ - ListView.prevSection property changed to ListView.previousSection
+TextInput:
+ - xToPosition -> positionAt (to match TextEdit.positionAt)
+Image:
+ - pixmap property removed, use QDeclarativeImageProvider to serve pixmaps
+ instead
+
+QList<QObject*> models no longer provide properties in model object. The
+properties are now updated when the object changes. An object's property
+"foo" may now be accessed as "foo", modelData.foo" or model.modelData.foo"
+component.createObject has gained a mandatory "parent" argument
+TextEdit and TextInput now have a "selectByMouse" property that defaults to false.
+
+C++ API
+-------
+QDeclarativeExpression::value() has been renamed to
+QDeclarativeExpression::evaluate()
+
+The QDeclarativeExpression constructor has changed from
+ QDeclarativeExpression(context, expression, scope)
+to
+ QDeclarativeExpression(context, scope, expression, parent = 0)
+
+QDeclarativeImageProvider::request() has been renamed to
+QDeclarativeImageProvider::image() and the class can now provide
+both qimages and qpixmaps, and qimages can be served synchronously
+
+QML Viewer
+------------
+The standalone qml executable has been renamed back to Qml Viewer. Runtime warnings
+can be now accessed via the menu (Debugging->Show Warnings).
+
+=============================================================================
+The changes below are pre Qt 4.7.0 beta 1
+
+TextEdit: wrap property is replaced by wrapMode enumeration.
+Text: wrap property is replaced by wrapMode enumeration.
+Removed Q-prefix from validators (IntValidator, DoubleValidator, and RegExpValidator)
+PathView: offset property now uses range 0-1.0 rather than 0-100
+ListView, GridView::positionViewAtIndex() gained a 'mode' parameter
+Removed Qt.playSound (replaced by SoundEffect element)
+Removed Qt.closestAngle (use RotationAnimation instead)
+Removed NumberFormatter
+Removed DateTimeFormatter (use Qt.formatDateTime() instead)
+Using WebView now requires "import QtWebKit 1.0"
+Using Particles now requires "import Qt.labs.particles 1.0"
+AnchorAnimation must now be used to animate anchor changes (and not NumberAnimation)
+Removed ParentAction (use ParentAnimation instead)
+ScriptAction: renamed stateChangeScriptName -> scriptName
+Animation: replace repeat with loops (loops: Animation.Infinite gives the old repeat behavior)
+AnchorChanges: use natural form to specify anchors (anchors.left instead of left)
+AnchorChanges: removed reset property. (reset: "left" should now be anchors.left: undefined)
+PathView: snapPosition replaced by preferredHighlightBegin, preferredHighlightEnd
+createQmlObject: Moved to the Qt object, now use Qt.createQmlObject()
+createComponent: Moved to the Qt object, now use Qt.createComponent()
+
+C++ API
+-------
+QDeclarativeContext::addDefaultObject() has been replaced with
+QDeclarativeContext::setContextObject()
+
+Behavior and Animation syntax
+-----------------------------
+Previously animations and behaviors could be "assigned" to properties like this:
+ Item { x: Behavior {}; y: NumberAnimation {} }
+To make it more obvious that these are not regular value assignments a new "on"
+syntax has been introduced:
+ Item { Behavior on x {}; NumberAnimation on y {} }
+Only the syntax has changed, the behavior is identical.
+
+EaseFollow renamed to SmoothedFollow
+---------------------------------------
+This element shares the internal implementation with SmoothedAnimation,
+both providing the same easing function, but with SmoothedFollow it's
+easier to set a start value to animate intially and then start to follow,
+while SmoothedAnimation is still convenient for using inside Behaviors
+and Transitions.
+
+
+Add SmoothedAnimation element
+---------------------------------------
+SmoothedAnimation inherits from NumberAnimaton and as a
+consequence SmoothedAnimation can be used inside Behaviors,
+as PropertySourceValues or in state transitions, like any other animation.
+
+The old EaseFollow properties changed to comply with the other declarative
+animations ('source' changed to 'to'), so now 'to' changes are not
+automatically 'followed' anymore.
+
+If you want to follow an hypothetical rect1, you should do now:
+
+ Rectangle {
+ color: "green"
+ width: 60; height: 60;
+ x: rect1.x - 5; y: rect1.y - 5;
+ Behavior on x { SmoothedAnimation { velocity: 200 } }
+ Behavior on y { SmoothedAnimation { velocity: 200 } }
+ }
+
+instead of the old automatic source changed tracking:
+
+ Rectangle {
+ color: "green"
+ width: 60; height: 60;
+ EaseFollow on x { source: rect1.x - 5; velocity: 200 }
+ EaseFollow on y { source: rect1.y - 5; velocity: 200 }
+ }
+
+This is a syntax and behavior change.
+
+
+Script element removed
+----------------------
+Inline Script{} blocks have been deprecated, and will soon be removed entirely.
+If you used Script to write inline javascript code, it can simply be removed.
+For example
+
+Item {
+ Script {
+ function doSomething() {}
+ }
+}
+
+becomes
+
+Item {
+ function doSomething() {}
+}
+
+If you used Script to include external JavaScript files, you can replace the
+Script element with an “import” line. For example
+
+MouseArea {
+ Script {
+ source: “foo.js”
+ }
+ onClicked: foo()
+}
+
+becomes
+
+import “foo.js” as Foo
+MouseArea {
+ onClicked: Foo.foo()
+}
+
+The “as” qualifier is mandatory for script imports (as opposed to type
+imports where it is optional).
+
+
+=============================================================================
+The changes below are pre Qt 4.7.0 alpha
+
+Flickable: renamed viewportWidth -> contentWidth
+Flickable: renamed viewportHeight -> contentHeight
+Flickable: renamed viewportX -> contentX
+Flickable: renamed viewportY -> contentY
+Removed Flickable.reportedVelocitySmoothing
+Renamed MouseRegion -> MouseArea
+Connection: syntax and rename:
+ Connection { sender: a; signal: foo(); script: xxx }
+ Connection { sender: a; signal: bar(); script: yyy }
+ becomes:
+ Connections { target: a; onFoo: xxx; onBar: yyy }
+
+ListView::sectionExpression has been replaced by section.property, section.criteria
+
+ListModel
+---------
+- types are strictly checked (previously, everything was a string)
+ - foo: "bar" continues to work as before
+ - foo: bar is now invalid, use foo: "bar"
+ - foo: true is now a bool (not string "true")
+ - foo: false is now a bool (not string "false" == true!)
+
+PropertyAnimation
+------------------
+matchProperties and matchTargets have been renamed back to properties and targets.
+The semantics are explained in the PropertyAnimation::properties documentation
+and the animation overview documentation.
+
+Easing curves and their parameters are now specified via dot properties:
+* easing.type : enum
+* easing.amplitude : real
+* easing.overshoot : real
+* easing.period : real
+For example:
+PropertyAnimation { properties: "y"; easing.type: "InOutElastic"; easing.amplitude: 2.0; easing.period: 1.5 }
+
+C++ API
+-------
+QML_DEFINE_... definition macros, previously global macros, are replaced by
+qmlRegisterType registration functions, which must be called explicitly.
+C++ API users should also consider using the QmlExtensionPlugin (previously
+named QmlModulePlugin) as a cleaner mechanism for publishing libraries of QML
+types, or the upcoming application plugin features of the qmlviewer /
+qmlruntime / qml.
+
+QmlView
+-------
+The API of QmlView has been narrowed and its role as a convenience class
+reinforced.
+- remove addItem()
+- remove clearItems() - use 'delete root()'
+- remove reset()
+- resizeContent -> enum ResizeMode { SizeViewToRootObject, SizeRootObjectToView }
+- remove setQml(), qml()
+- rename setUrl(), ur() to setSource(), source()
+- root() -> rootObject(), returns QGraphicsObject rather than QmlGraphicsItem
+- remove quit() signal -> use quit() signal of engine()
+- initialSize() signal removed
+- Added status() to determine status of the internal QmlComponent
+- removed execute() - setSource() will also execute the QML.
+
+
+=============================================================================
+The changes below are pre-4.6.0 release.
+
+QML API Review
+==============
+
+The QML API is being reviewed. This file documents the changes.
+Note that the changes are incremental, so a rename A->B for example may be followed
+by another subsequent rename B->C, if later reviews override earlier reviews.
+
+API Changes
+===========
+
+Renamed Elements:
+LineEdit -> TextInput
+VerticalLayout -> Column
+HorizontalLayout -> Row
+VerticalPositioner -> Column
+HorizontalPositioner -> Row
+GridLayout -> Grid
+GridPositioner -> Grid
+Rect -> Rectangle
+FocusRealm -> FocusScope
+FontFamily -> FontLoader
+Palette -> SystemPalette
+Bind -> Binding
+SetProperties -> PropertyChanges
+RunScript -> StateChangeScript
+SetAnchors -> AnchorChanges
+SetPropertyAction -> PropertyAction
+RunScriptAction -> ScriptAction
+ParentChangeAction -> ParentAction
+VisualModel -> VisualDataModel
+Follow -> SpringFollow
+
+Renamed properties:
+Item: contents -> childrenRect
+MouseRegion: xmin -> minimumX
+MouseRegion: xmax -> maximumX
+MouseRegion: ymin -> minimumY
+MouseRegion: ymin -> maximumY
+Text elements: hAlign -> horizontalAlignment
+Text elements: vAlign -> verticalAlignment
+Text elements: highlightColor -> selectionColor
+Text elements: highlightedTextColor -> selectedTextColor
+Text elements: preserveSelection -> persistentSelection
+State: operations -> changes
+Transition: operations -> animations
+Transition: fromState -> from
+Transition: toState -> to
+Follow: followValue -> value
+Flickable: xPosition -> viewportX
+Flickable: yPosition -> viewportY
+Flickable: xVelocity -> horizontalVelocity
+Flickable: yVelocity -> verticalVelocity
+Flickable: velocityDecay -> reportedVelocitySmoothing
+Flickable: locked -> interactive (note reversal of meaning)
+Flickable: pageXPosition -> visibleArea.xPosition
+Flickable: pageYPosition -> visibleArea.yPosition
+Flickable: pageWidth -> visibleArea.widthRatio
+Flickable: pageHeight -> visibleArea.heightRatio
+WebView: idealWidth -> preferredWidth
+WebView: idealHeight -> preferredHeight
+WebView: status -> statusText
+WebView: mouseX -> clickX (parameter to onDoubleClick)
+WebView: mouseY -> clickY (parameter to onDoubleClick)
+WebView: cacheSize -> pixelCacheSize
+Repeater: component -> delegate
+Repeater: dataSource -> model
+ListView: current -> currentItem
+GridView: current -> currentItem
+ListView: wrap -> keyNavigationWraps
+ListView: autoHighlight -> highlightFollowsCurrentItem
+GridView: wrap -> keyNavigationWraps
+GridView: autoHighlight -> highlightFollowsCurrentItem
+Animation: targets -> matchTargets
+Animation: properties -> matchProperties
+
+Additions:
+MouseRegion: add "acceptedButtons" property
+MouseRegion: add "hoverEnabled" property
+MouseRegion: add "pressedButtons" property
+Timer: add start() and stop() slots
+WebView: add newWindowComponent and newWindowParent properties
+Loader: add status() and progress() properties
+Loader: add sourceComponent property
+Loader: add resizeMode property
+ListView: preferredHighlightBegin, preferredHighlightEnd
+ListView: strictlyEnforceHighlightRange
+Particles: Added emissionRate, emissionVariance and burst()
+
+Deletions:
+Column/VerticalPositioner: lost "margins" property
+Row/HorizontalPositioner: lost "margins" property
+Grid/Positioner/Layout: lost "margins" property
+WebView: lost "interactive" property (always true now)
+Flickable: removed "dragMode" property
+ComponentInstance: removed. Replaced by Loader.sourceComponent
+ListView: removed currentItemMode. Replaced by highligh range.
+ListView: removed snapPos.
+Particles: removed streamIn. Replaced by emissionRate
+
+Other Changes:
+ids must be lowercase: Text { id: foo }, not Text { id: Foo }
+Drag: axis becomes an enum with values "XAxis", "YAxis", "XandYAxis"
+Image: scaleGrid property removed. New item called BorderImage instead.
+KeyActions: changed to a Keys attached property on any item.
+KeyProxy: changed to a Keys.forwardTo property on any item.
+Script: now an intrinsic type in the language
+ - cannot be assigned to properties
+ - good: Item { Script { ... } }
+ - bad: Item { resources: Script { ... } }
+Script: delay-loaded of the QML file until their source has been loaded (this only effects QML files loaded across the network.)
+Scope: declared properties shadow a property of the same name (was previously the reverse)
+ScriptAction and StateChangeScript: the script property now takes script rather than a string containing script (script: doSomething() rather than script: "doSomething()")
+QmlGraphicsItem::transformOrigin default changed from TopLeft to Center
+Animations used as PropertySourceValues are set to 'running: true' as default