Q3DTheme Class

Q3DTheme *theme = new Q3DTheme(Q3DTheme::Theme::Qt);

Q3DTheme *theme = new Q3DTheme(Q3DTheme::Theme::Qt);
theme->setBackgroundEnabled(false);
theme->setLabelBackgroundEnabled(false);

Q3DTheme *theme = new Q3DTheme();
theme->setAmbientLightStrength(0.3f);
theme->setBackgroundColor(QColor(QRgb(0x99ca53)));
theme->setBackgroundEnabled(true);
QList<QColor> colors = { QColor(QRgb(0x209fdf)) };
theme->setBaseColors(colors);
theme->setColorStyle(Q3DTheme::ColorStyle::Uniform);
theme->setFont(QFont(QStringLiteral("Impact"), 35));
theme->setGridEnabled(true);
theme->setGridLineColor(QColor(QRgb(0x99ca53)));
theme->setLabelBackgroundColor(QColor(0xf6, 0xa6, 0x25, 0xa0));
theme->setLabelBackgroundEnabled(true);
theme->setLabelBorderEnabled(true);
theme->setLabelTextColor(QColor(QRgb(0x404044)));
theme->setLightColor(Qt::white);
theme->setLightStrength(6.0f);
theme->setMultiHighlightColor(QColor(QRgb(0x6d5fd5)));
theme->setSingleHighlightColor(QColor(QRgb(0xf6a625)));
theme->setWindowColor(QColor(QRgb(0xffffff)));

Q3DBars *graph = new Q3DBars();
graph->activeTheme()->setType(Q3DTheme::Theme::PrimaryColors);
QList<QColor> color = { QColor(Qt::red) };
graph->activeTheme()->setBaseColors(color);
graph->activeTheme()->setSingleHighlightColor(Qt::yellow);

Property Documentation

ambientLightStrength : float

This property holds the ambient light strength for the whole graph.

This value determines how evenly and brightly the colors are shown throughout the graph regardless of the light position.

The value must be between 0.0f and 1.0f.

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backgroundColor : QColor

This property holds the color of the graph background.

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backgroundEnabled : bool

This property holds whether the background is visible.

The background is drawn by using the value of backgroundColor.

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[read-only] baseColors : const QQmlListProperty<QQuickGraphsColor>

This property holds 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, the color list wraps and starts again with the first color in the list.

Has no immediate effect if colorStyle is not Uniform.

This value can be overridden by setting the baseColor explicitly in the series.

[read-only] baseGradients : const QQmlListProperty<QObject>

This property holds 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 Uniform.

This value can be overridden by setting the baseGradient explicitly in the series.

colorStyle : Q3DTheme::ColorStyle

This property holds the style of the graph colors.

One of the ColorStyle enum values.

This value can be overridden by setting colorStyle explicitly in the series.

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font : QFont

This property holds the font to be used for labels.

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gridEnabled : bool

This property holds whether the grid lines are drawn.

This value affects all grid lines.

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gridLineColor : QColor

This property holds the color of the grid lines.

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labelBackgroundColor : QColor

This property holds the color of the label backgrounds.

Has no effect if labelBackgroundEnabled is false.

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labelBackgroundEnabled : bool

This property holds whether the label is drawn with a color background or with a fully transparent background.

The labelBackgroundColor value (including alpha) is used for drawing the 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.

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labelBorderEnabled : bool

This property holds whether label borders are drawn for labels that have a background.

Has no effect if labelBackgroundEnabled is false.

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labelTextColor : QColor

This property holds the color of the font used for labels.

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labelsEnabled : bool

This property holds whether labels are drawn at all.

If this is false, all other label properties have no effect.

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lightColor : QColor

This property holds the color for the ambient and specular light.

This value affects the light specified in Q3DScene.

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lightStrength : float

This property holds the specular light strength for the whole graph.

The value must be between 0.0f and 10.0f.

This value affects the light specified in Q3DScene.

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multiHighlightColor : QColor

This property holds the highlight color for selected objects.

Used if selectionMode has the QAbstract3DGraph::SelectionRow or QAbstract3DGraph::SelectionColumn flag set.

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multiHighlightGradient : QJSValue

This property holds the highlight gradient for selected objects.

Used if selectionMode has the QAbstract3DGraph::SelectionRow or QAbstract3DGraph::SelectionColumn flag set.

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shadowStrength : float

This property holds the shadow strength for the whole graph.

The higher the number, the darker the shadows will be. The value must be between 0.0 and 100.0.

This value affects the light specified in Q3DScene.

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singleHighlightColor : QColor

This property holds the highlight color for a selected object.

Used if selectionMode has the QAbstract3DGraph::SelectionItem flag set.

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singleHighlightGradient : QJSValue

This property holds the highlight gradient for a selected object.

Used if selectionMode has the QAbstract3DGraph::SelectionItem flag set.

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type : Q3DTheme::Theme

This property holds the type of the theme.

The type is automatically set when constructing a theme, but can also be changed later. Changing the theme type 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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windowColor : QColor

This property holds the color of the application window the graph is drawn into.

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