| 1 | =============================================================================
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| 2 | The changes below are pre Qt 4.7.0 RC1
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| 3 |
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| 4 | TextInput
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| 5 | - copy(), cut() and paste() functions added
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| 6 | Font.letterSpacing
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| 7 | - was percentage based. Now specified in pixels.
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| 8 | Item
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| 9 | - wantsFocus renamed to activeFocus
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| 10 | - forceFocus() renamed to forceActiveFocus()
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| 11 | - focus now returns the scoped focus (i.e. focus read/write now manipulate
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| 12 | the same value)
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| 13 | TextInput and TextEdit:
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| 14 | - focusOnPress renamed to activeFocusOnPress
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| 15 |
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| 16 | =============================================================================
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| 17 | The changes below are pre Qt 4.7.0 beta 2
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| 18 |
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| 19 | QDeclarativeView
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| 20 | - initialSize() function added
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| 21 | TextInput and TextEdit:
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| 22 | - openSoftwareInputPanel() and closeSoftwareInputPanel() functions added
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| 23 | Flickable:
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| 24 | - overShoot is replaced by boundsBehavior enumeration
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| 25 | - flickingHorizontally and flickingVertically properties added
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| 26 | - movingHorizontally and movingVertically properties added
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| 27 | - flickDirection is renamed flickableDirection
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| 28 | Component:
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| 29 | - isReady, isLoading, isError and isNull properties removed, use
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| 30 | status property instead
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| 31 | - errorsString() renamed to errorString()
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| 32 | ListView:
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| 33 | - ListView.prevSection property changed to ListView.previousSection
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| 34 | TextInput:
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| 35 | - xToPosition -> positionAt (to match TextEdit.positionAt)
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| 36 | Image:
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| 37 | - pixmap property removed, use QDeclarativeImageProvider to serve pixmaps
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| 38 | instead
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| 39 |
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| 40 | QList<QObject*> models no longer provide properties in model object. The
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| 41 | properties are now updated when the object changes. An object's property
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| 42 | "foo" may now be accessed as "foo", modelData.foo" or model.modelData.foo"
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| 43 | component.createObject has gained a mandatory "parent" argument
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| 44 | TextEdit and TextInput now have a "selectByMouse" property that defaults to false.
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| 45 |
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| 46 | C++ API
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| 47 | -------
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| 48 | QDeclarativeExpression::value() has been renamed to
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| 49 | QDeclarativeExpression::evaluate()
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| 50 |
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| 51 | The QDeclarativeExpression constructor has changed from
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| 52 | QDeclarativeExpression(context, expression, scope)
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| 53 | to
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| 54 | QDeclarativeExpression(context, scope, expression, parent = 0)
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| 55 |
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| 56 | QDeclarativeImageProvider::request() has been renamed to
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| 57 | QDeclarativeImageProvider::image() and the class can now provide
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| 58 | both qimages and qpixmaps, and qimages can be served synchronously
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| 59 |
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| 60 | QML Viewer
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| 61 | ------------
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| 62 | The standalone qml executable has been renamed back to Qml Viewer. Runtime warnings
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| 63 | can be now accessed via the menu (Debugging->Show Warnings).
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| 64 |
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| 65 | =============================================================================
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| 66 | The changes below are pre Qt 4.7.0 beta 1
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| 67 |
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| 68 | TextEdit: wrap property is replaced by wrapMode enumeration.
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| 69 | Text: wrap property is replaced by wrapMode enumeration.
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| 70 | Removed Q-prefix from validators (IntValidator, DoubleValidator, and RegExpValidator)
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| 71 | PathView: offset property now uses range 0-1.0 rather than 0-100
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| 72 | ListView, GridView::positionViewAtIndex() gained a 'mode' parameter
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| 73 | Removed Qt.playSound (replaced by SoundEffect element)
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| 74 | Removed Qt.closestAngle (use RotationAnimation instead)
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| 75 | Removed NumberFormatter
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| 76 | Removed DateTimeFormatter (use Qt.formatDateTime() instead)
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| 77 | Using WebView now requires "import QtWebKit 1.0"
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| 78 | Using Particles now requires "import Qt.labs.particles 1.0"
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| 79 | AnchorAnimation must now be used to animate anchor changes (and not NumberAnimation)
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| 80 | Removed ParentAction (use ParentAnimation instead)
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| 81 | ScriptAction: renamed stateChangeScriptName -> scriptName
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| 82 | Animation: replace repeat with loops (loops: Animation.Infinite gives the old repeat behavior)
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| 83 | AnchorChanges: use natural form to specify anchors (anchors.left instead of left)
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| 84 | AnchorChanges: removed reset property. (reset: "left" should now be anchors.left: undefined)
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| 85 | PathView: snapPosition replaced by preferredHighlightBegin, preferredHighlightEnd
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| 86 | createQmlObject: Moved to the Qt object, now use Qt.createQmlObject()
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| 87 | createComponent: Moved to the Qt object, now use Qt.createComponent()
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| 88 |
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| 89 | C++ API
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| 90 | -------
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| 91 | QDeclarativeContext::addDefaultObject() has been replaced with
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| 92 | QDeclarativeContext::setContextObject()
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| 93 |
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| 94 | Behavior and Animation syntax
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| 95 | -----------------------------
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| 96 | Previously animations and behaviors could be "assigned" to properties like this:
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| 97 | Item { x: Behavior {}; y: NumberAnimation {} }
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| 98 | To make it more obvious that these are not regular value assignments a new "on"
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| 99 | syntax has been introduced:
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| 100 | Item { Behavior on x {}; NumberAnimation on y {} }
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| 101 | Only the syntax has changed, the behavior is identical.
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| 102 |
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| 103 | EaseFollow renamed to SmoothedFollow
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| 104 | ---------------------------------------
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| 105 | This element shares the internal implementation with SmoothedAnimation,
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| 106 | both providing the same easing function, but with SmoothedFollow it's
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| 107 | easier to set a start value to animate intially and then start to follow,
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| 108 | while SmoothedAnimation is still convenient for using inside Behaviors
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| 109 | and Transitions.
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| 110 |
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| 111 |
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| 112 | Add SmoothedAnimation element
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| 113 | ---------------------------------------
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| 114 | SmoothedAnimation inherits from NumberAnimaton and as a
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| 115 | consequence SmoothedAnimation can be used inside Behaviors,
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| 116 | as PropertySourceValues or in state transitions, like any other animation.
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| 117 |
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| 118 | The old EaseFollow properties changed to comply with the other declarative
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| 119 | animations ('source' changed to 'to'), so now 'to' changes are not
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| 120 | automatically 'followed' anymore.
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| 121 |
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| 122 | If you want to follow an hypothetical rect1, you should do now:
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| 123 |
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| 124 | Rectangle {
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| 125 | color: "green"
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| 126 | width: 60; height: 60;
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| 127 | x: rect1.x - 5; y: rect1.y - 5;
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| 128 | Behavior on x { SmoothedAnimation { velocity: 200 } }
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| 129 | Behavior on y { SmoothedAnimation { velocity: 200 } }
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| 130 | }
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| 131 |
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| 132 | instead of the old automatic source changed tracking:
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| 133 |
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| 134 | Rectangle {
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| 135 | color: "green"
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| 136 | width: 60; height: 60;
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| 137 | EaseFollow on x { source: rect1.x - 5; velocity: 200 }
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| 138 | EaseFollow on y { source: rect1.y - 5; velocity: 200 }
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| 139 | }
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| 140 |
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| 141 | This is a syntax and behavior change.
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| 142 |
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| 143 |
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| 144 | Script element removed
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| 145 | ----------------------
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| 146 | Inline Script{} blocks have been deprecated, and will soon be removed entirely.
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| 147 | If you used Script to write inline javascript code, it can simply be removed.
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| 148 | For example
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| 149 |
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| 150 | Item {
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| 151 | Script {
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| 152 | function doSomething() {}
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| 153 | }
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| 154 | }
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| 155 |
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| 156 | becomes
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| 157 |
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| 158 | Item {
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| 159 | function doSomething() {}
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| 160 | }
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| 161 |
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| 162 | If you used Script to include external JavaScript files, you can replace the
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| 163 | Script element with an âimportâ line. For example
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| 164 |
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| 165 | MouseArea {
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| 166 | Script {
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| 167 | source: âfoo.jsâ
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| 168 | }
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| 169 | onClicked: foo()
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| 170 | }
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| 171 |
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| 172 | becomes
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| 173 |
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| 174 | import âfoo.jsâ as Foo
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| 175 | MouseArea {
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| 176 | onClicked: Foo.foo()
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| 177 | }
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| 178 |
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| 179 | The âasâ qualifier is mandatory for script imports (as opposed to type
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| 180 | imports where it is optional).
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| 181 |
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| 182 |
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| 183 | =============================================================================
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| 184 | The changes below are pre Qt 4.7.0 alpha
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| 185 |
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| 186 | Flickable: renamed viewportWidth -> contentWidth
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| 187 | Flickable: renamed viewportHeight -> contentHeight
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| 188 | Flickable: renamed viewportX -> contentX
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| 189 | Flickable: renamed viewportY -> contentY
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| 190 | Removed Flickable.reportedVelocitySmoothing
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| 191 | Renamed MouseRegion -> MouseArea
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| 192 | Connection: syntax and rename:
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| 193 | Connection { sender: a; signal: foo(); script: xxx }
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| 194 | Connection { sender: a; signal: bar(); script: yyy }
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| 195 | becomes:
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| 196 | Connections { target: a; onFoo: xxx; onBar: yyy }
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| 197 |
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| 198 | ListView::sectionExpression has been replaced by section.property, section.criteria
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| 199 |
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| 200 | ListModel
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| 201 | ---------
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| 202 | - types are strictly checked (previously, everything was a string)
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| 203 | - foo: "bar" continues to work as before
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| 204 | - foo: bar is now invalid, use foo: "bar"
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| 205 | - foo: true is now a bool (not string "true")
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| 206 | - foo: false is now a bool (not string "false" == true!)
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| 207 |
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| 208 | PropertyAnimation
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| 209 | ------------------
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| 210 | matchProperties and matchTargets have been renamed back to properties and targets.
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| 211 | The semantics are explained in the PropertyAnimation::properties documentation
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| 212 | and the animation overview documentation.
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| 213 |
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| 214 | Easing curves and their parameters are now specified via dot properties:
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| 215 | * easing.type : enum
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| 216 | * easing.amplitude : real
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| 217 | * easing.overshoot : real
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| 218 | * easing.period : real
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| 219 | For example:
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| 220 | PropertyAnimation { properties: "y"; easing.type: "InOutElastic"; easing.amplitude: 2.0; easing.period: 1.5 }
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| 221 |
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| 222 | C++ API
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| 223 | -------
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| 224 | QML_DEFINE_... definition macros, previously global macros, are replaced by
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| 225 | qmlRegisterType registration functions, which must be called explicitly.
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| 226 | C++ API users should also consider using the QmlExtensionPlugin (previously
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| 227 | named QmlModulePlugin) as a cleaner mechanism for publishing libraries of QML
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| 228 | types, or the upcoming application plugin features of the qmlviewer /
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| 229 | qmlruntime / qml.
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| 230 |
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| 231 | QmlView
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| 232 | -------
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| 233 | The API of QmlView has been narrowed and its role as a convenience class
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| 234 | reinforced.
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| 235 | - remove addItem()
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| 236 | - remove clearItems() - use 'delete root()'
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| 237 | - remove reset()
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| 238 | - resizeContent -> enum ResizeMode { SizeViewToRootObject, SizeRootObjectToView }
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| 239 | - remove setQml(), qml()
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| 240 | - rename setUrl(), ur() to setSource(), source()
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| 241 | - root() -> rootObject(), returns QGraphicsObject rather than QmlGraphicsItem
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| 242 | - remove quit() signal -> use quit() signal of engine()
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| 243 | - initialSize() signal removed
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| 244 | - Added status() to determine status of the internal QmlComponent
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| 245 | - removed execute() - setSource() will also execute the QML.
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| 246 |
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| 247 |
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| 248 | =============================================================================
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| 249 | The changes below are pre-4.6.0 release.
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| 250 |
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| 251 | QML API Review
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| 252 | ==============
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| 253 |
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| 254 | The QML API is being reviewed. This file documents the changes.
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| 255 | Note that the changes are incremental, so a rename A->B for example may be followed
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| 256 | by another subsequent rename B->C, if later reviews override earlier reviews.
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| 257 |
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| 258 | API Changes
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| 259 | ===========
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| 260 |
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| 261 | Renamed Elements:
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| 262 | LineEdit -> TextInput
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| 263 | VerticalLayout -> Column
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| 264 | HorizontalLayout -> Row
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| 265 | VerticalPositioner -> Column
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| 266 | HorizontalPositioner -> Row
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| 267 | GridLayout -> Grid
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| 268 | GridPositioner -> Grid
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| 269 | Rect -> Rectangle
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| 270 | FocusRealm -> FocusScope
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| 271 | FontFamily -> FontLoader
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| 272 | Palette -> SystemPalette
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| 273 | Bind -> Binding
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| 274 | SetProperties -> PropertyChanges
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| 275 | RunScript -> StateChangeScript
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| 276 | SetAnchors -> AnchorChanges
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| 277 | SetPropertyAction -> PropertyAction
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| 278 | RunScriptAction -> ScriptAction
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| 279 | ParentChangeAction -> ParentAction
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| 280 | VisualModel -> VisualDataModel
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| 281 | Follow -> SpringFollow
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| 282 |
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| 283 | Renamed properties:
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| 284 | Item: contents -> childrenRect
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| 285 | MouseRegion: xmin -> minimumX
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| 286 | MouseRegion: xmax -> maximumX
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| 287 | MouseRegion: ymin -> minimumY
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| 288 | MouseRegion: ymin -> maximumY
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| 289 | Text elements: hAlign -> horizontalAlignment
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| 290 | Text elements: vAlign -> verticalAlignment
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| 291 | Text elements: highlightColor -> selectionColor
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| 292 | Text elements: highlightedTextColor -> selectedTextColor
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| 293 | Text elements: preserveSelection -> persistentSelection
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| 294 | State: operations -> changes
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| 295 | Transition: operations -> animations
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| 296 | Transition: fromState -> from
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| 297 | Transition: toState -> to
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| 298 | Follow: followValue -> value
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| 299 | Flickable: xPosition -> viewportX
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| 300 | Flickable: yPosition -> viewportY
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| 301 | Flickable: xVelocity -> horizontalVelocity
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| 302 | Flickable: yVelocity -> verticalVelocity
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| 303 | Flickable: velocityDecay -> reportedVelocitySmoothing
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| 304 | Flickable: locked -> interactive (note reversal of meaning)
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| 305 | Flickable: pageXPosition -> visibleArea.xPosition
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| 306 | Flickable: pageYPosition -> visibleArea.yPosition
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| 307 | Flickable: pageWidth -> visibleArea.widthRatio
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| 308 | Flickable: pageHeight -> visibleArea.heightRatio
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| 309 | WebView: idealWidth -> preferredWidth
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| 310 | WebView: idealHeight -> preferredHeight
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| 311 | WebView: status -> statusText
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| 312 | WebView: mouseX -> clickX (parameter to onDoubleClick)
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| 313 | WebView: mouseY -> clickY (parameter to onDoubleClick)
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| 314 | WebView: cacheSize -> pixelCacheSize
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| 315 | Repeater: component -> delegate
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| 316 | Repeater: dataSource -> model
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| 317 | ListView: current -> currentItem
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| 318 | GridView: current -> currentItem
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| 319 | ListView: wrap -> keyNavigationWraps
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| 320 | ListView: autoHighlight -> highlightFollowsCurrentItem
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| 321 | GridView: wrap -> keyNavigationWraps
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| 322 | GridView: autoHighlight -> highlightFollowsCurrentItem
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| 323 | Animation: targets -> matchTargets
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| 324 | Animation: properties -> matchProperties
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| 325 |
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| 326 | Additions:
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| 327 | MouseRegion: add "acceptedButtons" property
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| 328 | MouseRegion: add "hoverEnabled" property
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| 329 | MouseRegion: add "pressedButtons" property
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| 330 | Timer: add start() and stop() slots
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| 331 | WebView: add newWindowComponent and newWindowParent properties
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| 332 | Loader: add status() and progress() properties
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| 333 | Loader: add sourceComponent property
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| 334 | Loader: add resizeMode property
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| 335 | ListView: preferredHighlightBegin, preferredHighlightEnd
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| 336 | ListView: strictlyEnforceHighlightRange
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| 337 | Particles: Added emissionRate, emissionVariance and burst()
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| 338 |
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| 339 | Deletions:
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| 340 | Column/VerticalPositioner: lost "margins" property
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| 341 | Row/HorizontalPositioner: lost "margins" property
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| 342 | Grid/Positioner/Layout: lost "margins" property
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| 343 | WebView: lost "interactive" property (always true now)
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| 344 | Flickable: removed "dragMode" property
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| 345 | ComponentInstance: removed. Replaced by Loader.sourceComponent
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| 346 | ListView: removed currentItemMode. Replaced by highligh range.
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| 347 | ListView: removed snapPos.
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| 348 | Particles: removed streamIn. Replaced by emissionRate
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| 349 |
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| 350 | Other Changes:
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| 351 | ids must be lowercase: Text { id: foo }, not Text { id: Foo }
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| 352 | Drag: axis becomes an enum with values "XAxis", "YAxis", "XandYAxis"
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| 353 | Image: scaleGrid property removed. New item called BorderImage instead.
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| 354 | KeyActions: changed to a Keys attached property on any item.
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| 355 | KeyProxy: changed to a Keys.forwardTo property on any item.
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| 356 | Script: now an intrinsic type in the language
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| 357 | - cannot be assigned to properties
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| 358 | - good: Item { Script { ... } }
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| 359 | - bad: Item { resources: Script { ... } }
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| 360 | Script: delay-loaded of the QML file until their source has been loaded (this only effects QML files loaded across the network.)
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| 361 | Scope: declared properties shadow a property of the same name (was previously the reverse)
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| 362 | ScriptAction and StateChangeScript: the script property now takes script rather than a string containing script (script: doSomething() rather than script: "doSomething()")
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| 363 | QmlGraphicsItem::transformOrigin default changed from TopLeft to Center
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| 364 | Animations used as PropertySourceValues are set to 'running: true' as default
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