Current File : C:/Windows/Temp/MBInstallTemp/ctlrpkg/QtQuick/Controls/Styles/Base/DialStyle.qml
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import QtQuick 2.2
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4
import QtQuick.Controls.Private 1.0
import QtQuick.Extras 1.4
import QtQuick.Extras.Private 1.0
import QtQuick.Extras.Private.CppUtils 1.0
/*!
\qmltype DialStyle
\inqmlmodule QtQuick.Controls.Styles
\since 5.5
\ingroup controlsstyling
\brief Provides custom styling for Dial.
You can create a custom dial by replacing the following delegates:
\list
\li \l background
\endlist
*/
Style {
id: dialStyle
/*!
The \l Dial that this style is attached to.
*/
readonly property Dial control: __control
/*!
The distance from the center of the dial to the outer edge of the dial.
This property is useful for determining the size of the various
components of the style, in order to ensure that they are scaled
proportionately when the dial is resized.
*/
readonly property real outerRadius: Math.min(control.height, control.width) / 2
/*!
The distance in pixels from the outside of the dial (outerRadius)
to the center of the handle.
*/
property real handleInset: (__tickmarkRadius * 4) + ((__handleRadius * 2) * 0.55)
/*!
The interval at which tickmarks are displayed.
For example, if this property is set to \c 10,
control.minimumValue to \c 0, and control.maximumValue to \c 100,
the tickmarks displayed will be 0, 10, 20, etc., to 100, along
the circumference of the dial.
*/
property real tickmarkStepSize: 1
/*!
The distance in pixels from the outside of the dial (outerRadius) at
which the outermost point of the tickmark line is drawn.
*/
property real tickmarkInset: 0
/*!
The amount of tickmarks displayed by the dial, calculated from
\l tickmarkStepSize and the control's
\l {Dial::minimumValue}{minimumValue} and
\l {Dial::maximumValue}{maximumValue}.
\sa minorTickmarkCount
*/
readonly property int tickmarkCount: control.__panel.circularTickmarkLabel.tickmarkCount
/*!
The amount of minor tickmarks between each tickmark.
\sa tickmarkCount
*/
property int minorTickmarkCount: 0
/*!
The distance in pixels from the outside of the dial (outerRadius) at
which the outermost point of the minor tickmark line is drawn.
*/
property real minorTickmarkInset: 0
/*!
The distance in pixels from the outside of the dial (outerRadius) at
which the center of the value marker text is drawn.
*/
property real labelInset: 0
/*!
The interval at which tickmark labels are displayed.
For example, if this property is set to \c 10 (the default),
control.minimumValue to \c 0, and control.maximumValue to \c 100, the
tickmark labels displayed will be 0, 10, 20, etc., to 100,
along the circumference of the dial.
*/
property real labelStepSize: tickmarkStepSize
/*!
The amount of tickmark labels displayed by the dial, calculated from
\l labelStepSize and the control's
\l {Dial::minimumValue}{minimumValue} and
\l {Dial::maximumValue}{maximumValue}.
\sa tickmarkCount, minorTickmarkCount
*/
readonly property int labelCount: control.__panel.circularTickmarkLabel.labelCount
/*! \qmlmethod real DialStyle::valueToAngle(real value)
Returns \a value as an angle in degrees.
This function is useful for custom drawing or positioning of items in
the style's components. For example, it can be used to calculate the
angles at which to draw an arc around the dial indicating the safe
range of values.
*/
function valueToAngle(value) {
return control.__panel.circularTickmarkLabel.valueToAngle(value);
}
/*! \internal */
readonly property real __tickmarkRadius: outerRadius * 0.06
/*! \internal */
readonly property real __handleRadius: outerRadius * 0.15
/*!
\internal
This property determines whether it is possible to change the value of
the dial simply by pressing/tapping.
If \c false, the user must drag to rotate the dial and hence change the
value.
This property is useful for touch devices, where it is easy to
accidentally tap while flicking, for example.
*/
property bool __dragToSet: Settings.hasTouchScreen && Settings.isMobile
/*!
The background of the dial.
The implicit size of the dial is taken from this component.
*/
property Component background: Item {
id: backgroundItem
implicitWidth: backgroundHelper.implicitWidth
implicitHeight: backgroundHelper.implicitHeight
CircularButtonStyleHelper {
id: backgroundHelper
control: dialStyle.control
property color zeroMarkerColor: "#a8a8a8"
property color zeroMarkerColorTransparent: "transparent"
property real zeroMarkerLength: outerArcLineWidth * 1.25
property real zeroMarkerWidth: outerArcLineWidth * 0.3
smallestAxis: Math.min(backgroundItem.width, backgroundItem.height) - __tickmarkRadius * 4
}
Canvas {
id: backgroundCanvas
anchors.fill: parent
readonly property real xCenter: width / 2
readonly property real yCenter: height / 2
onPaint: {
var ctx = getContext("2d");
backgroundHelper.paintBackground(ctx);
}
}
}
/*!
The handle of the dial.
The handle is automatically positioned within the dial, based on the
\l handleInset and the implicit width and height of the handle itself.
*/
property Component handle: Canvas {
implicitWidth: __handleRadius * 2
implicitHeight: __handleRadius * 2
HandleStyleHelper {
id: handleHelper
}
onPaint: {
var ctx = getContext("2d");
handleHelper.paintHandle(ctx, 1, 1, width - 2, height - 2);
}
}
/*!
This component defines each individual tickmark. The position of each
tickmark is already set; only the
\l {Item::implicitWidth}{implicitWidth} and
\l {Item::implicitHeight}{implicitHeight} need to be specified.
Each instance of this component has access to the following properties:
\table
\row \li \c {readonly property int} \b styleData.index
\li The index of this tickmark.
\row \li \c {readonly property real} \b styleData.value
\li The value that this tickmark represents.
\endtable
*/
property Component tickmark: Rectangle {
implicitWidth: outerRadius * 0.015 + (styleData.index === 0 || styleData.index === tickmarkCount ? 1 : (styleData.index) / tickmarkCount) * __tickmarkRadius * 0.75
implicitHeight: implicitWidth
radius: height / 2
color: styleData.index === 0 ? "transparent" : Qt.rgba(0, 0, 0, 0.266)
antialiasing: true
border.width: styleData.index === 0 ? Math.max(1, outerRadius * 0.0075) : 0
border.color: Qt.rgba(0, 0, 0, 0.266)
}
/*!
This component defines each individual minor tickmark. The position of each
minor tickmark is already set; only the
\l {Item::implicitWidth}{implicitWidth} and
\l {Item::implicitHeight}{implicitHeight} need to be specified.
Each instance of this component has access to the following properties:
\table
\row \li \c {readonly property int} \b styleData.index
\li The index of this tickmark.
\row \li \c {readonly property real} \b styleData.value
\li The value that this tickmark represents.
\endtable
By default, no minor tickmark is defined.
*/
property Component minorTickmark
/*!
This defines the text of each tickmark label on the dial.
Each instance of this component has access to the following properties:
\table
\row \li \c {readonly property int} \b styleData.index
\li The index of this label.
\row \li \c {readonly property real} \b styleData.value
\li The value that this label represents.
\endtable
By default, no label is defined.
*/
property Component tickmarkLabel
/*! \internal */
property Component panel: Item {
implicitWidth: backgroundLoader.implicitWidth
implicitHeight: backgroundLoader.implicitHeight
property alias background: backgroundLoader.item
property alias circularTickmarkLabel: circularTickmarkLabel_
Loader {
id: backgroundLoader
sourceComponent: dialStyle.background
width: outerRadius * 2
height: width
anchors.centerIn: parent
}
Loader {
id: handleLoader
sourceComponent: dialStyle.handle
x: backgroundLoader.x + __pos.x - width / 2
y: backgroundLoader.y + __pos.y - height / 2
readonly property point __pos: {
var radians = 0;
if (control.__wrap) {
radians = (control.value - control.minimumValue) /
(control.maximumValue - control.minimumValue) *
(MathUtils.pi2) + backgroundHelper.zeroAngle;
} else {
radians = -(Math.PI * 8 - (control.value - control.minimumValue) * 10 *
Math.PI / (control.maximumValue - control.minimumValue)) / 6;
}
return MathUtils.centerAlongCircle(backgroundLoader.width / 2, backgroundLoader.height / 2,
0, 0, radians, outerRadius - handleInset)
}
}
CircularTickmarkLabel {
id: circularTickmarkLabel_
anchors.fill: backgroundLoader
minimumValue: control.minimumValue
maximumValue: control.maximumValue
stepSize: control.stepSize
tickmarksVisible: control.tickmarksVisible
minimumValueAngle: -150
maximumValueAngle: 150
tickmarkStepSize: dialStyle.tickmarkStepSize
tickmarkInset: dialStyle.tickmarkInset
minorTickmarkCount: dialStyle.minorTickmarkCount
minorTickmarkInset: dialStyle.minorTickmarkInset
labelInset: dialStyle.labelInset
labelStepSize: dialStyle.labelStepSize
style: CircularTickmarkLabelStyle {
tickmark: dialStyle.tickmark
minorTickmark: dialStyle.minorTickmark
tickmarkLabel: dialStyle.tickmarkLabel
}
}
}
}
Mini Shell