GraphsTheme QML Type
A visual style for graphs. More...
| Import Statement: | import QtGraphs |
| Instantiates: | QGraphsTheme |
- List of all members, including inherited members
- GraphsTheme is part of Qt Graphs QML Types.
Properties
- backgroundColor : color
- backgroundEnabled : bool
- colorScheme : Qt.ColorScheme
- colorStyle : GraphsTheme.ColorStyle
- gridEnabled : bool
- gridMainColor : color
- gridMainWidth : real
- gridSubColor : color
- gridSubWidth : real
- labelBackgroundColor : color
- labelBackgroundEnabled : bool
- labelBorderEnabled : bool
- labelFont : font
- labelTextColor : color
- labelsEnabled : bool
- multiHighlightColor : color
- multiHighlightGradient : Gradient
- plotAreaBackgroundColor : color
- plotAreaBackgroundEnabled : bool
- seriesColors : list<Color>
- seriesGradients : list<Gradient>
- singleHighlightColor : color
- singleHighlightGradient : Gradient
- theme : GraphsTheme.Theme
Detailed Description
This type is used to specify visual properties that affect the whole graph. There are several built-in themes that can be used as is or modified freely.
Themes can be created from scratch by using the GraphsTheme.Theme.UserDefined enum value.
Default Theme
The following table lists the properties controlled by themes and the default values for QGraphsTheme.Theme.UserDefined.
| Property | Default Value |
|---|---|
| backgroundEnabled | true |
| seriesColors | Qt::black |
| seriesGradients | QLinearGradient. Essentially fully black. |
| colorStyle | Uniform |
| labelFont | QFont |
| gridEnabled | true |
| gridMainWidth | 0.25 |
| labelBackgroundEnabled | true |
| labelBorderEnabled | true |
| labelsEnabled | true |
Usage examples
Using a built-in theme without any modifications:
Scatter3D {
...
theme: GraphsTheme { theme: GraphsTheme.Theme.YellowSeries }
...
}Using a built-in theme and modifying some properties:
Bars3D {
...
theme: GraphsTheme {
theme: GraphsTheme.Theme.QtGreenNeon
labelBorderEnabled: true
labelFont.pointSize: 35
labelBackgroundEnabled: false
}
...
}Using a user-defined theme:
Surface3D {
...
theme: GraphsTheme {
backgroundColor: "red"
backgroundEnabled: true
seriesColors: ["blue"]
colorStyle: GraphsTheme.ColorStyle.Uniform
labelFont.family: "Lucida Handwriting"
labelFont.pointSize: 35
gridEnabled: false
gridMainColor: "black"
labelBackgroundColor: "black"
labelBackgroundEnabled: true
labelBorderEnabled: false
labelTextColor: "white"
multiHighlightColor: "green"
singleHighlightColor: "darkRed"
windowColor: "white"
}
...
}For GraphsTheme enums, see GraphsTheme::ColorStyle and GraphsTheme::Theme.
Property Documentation
backgroundColor : color |
The color of the view the graph is drawn into.
backgroundEnabled : bool |
Defines whether the view background is drawn by using the value of backgroundColor.
colorScheme : Qt.ColorScheme |
The color scheme of the graph in use.
See also Qt::ColorScheme.
colorStyle : GraphsTheme.ColorStyle |
The style of the graph colors. One of QGraphsTheme::ColorStyle enum values.
This value can be overridden by setting Abstract3DSeries.colorStyle explicitly in the series.
See also QGraphsTheme::ColorStyle.
gridEnabled : bool |
Defines whether the grid lines are drawn. This value affects all grid lines.
gridMainColor : color |
The color of the main grid lines.
gridMainWidth : real |
The width of the main grid lines
The higher the number, the wider the grid lines will be. The value must be between 0.0 and 1.0.
Only has effect if QAbstract3DGraph::shaderGridEnabled is true
gridSubColor : color |
The color of the subgrid lines.
gridSubWidth : real |
The width of the subgrid lines
The higher the number, the wider the grid lines will be. The value must be between 0.0 and 1.0.
Only has effect if QAbstract3DGraph::shaderGridEnabled is true
labelBackgroundColor : color |
The color of the label backgrounds. Has no effect if labelBackgroundEnabled is false.
labelBackgroundEnabled : bool |
Defines whether the label is drawn with a background that uses labelBackgroundColor (including alpha), or with a fully transparent background. Labels with a background are drawn to equal sizes per axis based on the longest label, and the text is centered in them. Labels without a background are drawn as is and are left or right aligned based on their position in the graph.
labelBorderEnabled : bool |
Defines whether label borders are drawn for labels that have a background. Has no effect if labelBackgroundEnabled is false.
labelFont : font |
Sets the font to be used for labels.
labelTextColor : color |
The color of the font used for labels.
labelsEnabled : bool |
Defines whether labels are drawn at all. If this is false, all other label properties have no effect.
multiHighlightColor : color |
The highlight color for selected objects. Used if selectionMode has the AbstractGraph3D.SelectionRow or AbstractGraph3D.SelectionColumn flag set.
multiHighlightGradient : Gradient |
The highlight gradient for selected objects. Used if selectionMode has the AbstractGraph3D.SelectionRow or AbstractGraph3D.SelectionColumn flag set.
plotAreaBackgroundColor : color |
The color of the graph plot area background.
plotAreaBackgroundEnabled : bool |
Defines whether the plot area background is drawn by using the value of plotAreaBackgroundColor.
seriesColors : list<Color> |
The list of base colors to be used for all the objects in the graph, series by series. If there are more series than colors, color list wraps and starts again with the first color in the list. Has no immediate effect if colorStyle is not GraphsTheme.ColorStyle.Uniform.
This can be overridden by setting Abstract3DSeries.baseColor explicitly in the series.
The list of base gradients to be used for all the objects in the graph, series by series. If there are more series than gradients, the gradient list wraps and starts again with the first gradient in the list.
Has no immediate effect if colorStyle is GraphsTheme.ColorStyle.Uniform.
This value can be overridden by setting Abstract3DSeries.baseGradient explicitly in the series.
singleHighlightColor : color |
The highlight color for a selected object. Used if selectionMode has the AbstractGraph3D.SelectionItem flag set.
singleHighlightGradient : Gradient |
The highlight gradient for a selected object. Used if selectionMode has the AbstractGraph3D.SelectionItem flag set.
theme : GraphsTheme.Theme |
The type of the theme. If no type is set, the type is GraphsTheme.Theme.UserDefined. Changing the theme type after the item has been constructed will change all other properties of the theme to what the predefined theme specifies. Changing the theme type of the active theme of the graph will also reset all attached series to use the new theme.
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