QGraphsTheme Class

 QGraphsTheme *theme = new QGraphsTheme();

 QGraphsTheme *theme = new QGraphsTheme();
 theme->setBackgroundVisible(false);
 theme->setLabelBackgroundVisible(false);

 theme->setTheme(QGraphsTheme::Theme::UserDefined);
 theme->setBackgroundColor(QColor(QRgb(0x99ca53)));
 theme->setBackgroundVisible(true);
 QList<QColor> colors = { QColor(QRgb(0x209fdf)) };
 theme->setSeriesColors(colors);
 theme->setColorStyle(QGraphsTheme::ColorStyle::Uniform);
 theme->setLabelFont(QFont(QStringLiteral("Impact"), 35));
 theme->setGridVisible(true);
 auto gridline = theme->grid();
 gridline.setMainColor(QColor(QRgb(0x99ca53)));
 theme->setGrid(gridline);
 theme->setLabelBackgroundColor(QColor(0xf6, 0xa6, 0x25, 0xa0));
 theme->setLabelBackgroundVisible(true);
 theme->setLabelBorderVisible(true);
 theme->setLabelTextColor(QColor(QRgb(0x404044)));
 theme->setMultiHighlightColor(QColor(QRgb(0x6d5fd5)));
 theme->setSingleHighlightColor(QColor(QRgb(0xf6a625)));
 theme->setBackgroundColor(QColor(QRgb(0xffffff)));

 QQuickWidget quickWidget;
 Q3DBarsWidgetItem bars;
 bars.setWidget(&quickWidget);
 bars.widget()->setMinimumSize(QSize(512, 512));
 bars.activeTheme()->setTheme(QGraphsTheme::Theme::MixSeries);
 QList<QColor> color = { QColor(Qt::red) };
 bars.activeTheme()->setSeriesColors(color);
 bars.activeTheme()->setSingleHighlightColor(Qt::yellow);

Property Documentation

axisXLabelFont : QFont

This property holds the font to be used for labels on x axis.

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axisYLabelFont : QFont

This property holds the font to be used for labels on y axis.

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axisZLabelFont : QFont

This property holds the font to be used for labels on z axis.

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backgroundColor : QColor

This property holds the color of the view the graph is drawn into. The default value depends on colorScheme.

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backgroundVisible : bool

This property holds whether the background is visible.

The background is drawn by using the value of backgroundColor. The default value is true.

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borderColors : QList<QColor>

This property holds the list of border 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.

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borderWidth : qreal

This property holds the width of borders in graph if any The default value is 1.0.

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colorScheme : QGraphsTheme::ColorScheme

The color scheme of the graph in use.

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See also Qt::ColorScheme.

colorStyle : QGraphsTheme::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.

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See also QGraphsTheme::ColorStyle.

gridVisible : bool

This property holds whether the grid lines are drawn.

This value affects all grid lines. The default value is true.

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labelBackgroundColor : QColor

This property holds the color of the label backgrounds.

Has no effect if labelBackgroundVisible is false. The default value depends on colorScheme.

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labelBackgroundVisible : 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. The default value is true.

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labelBorderVisible : bool

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

Has no effect if labelBackgroundVisible is false. The default value is true.

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labelFont : QFont

This property holds the font to be used for labels.

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labelTextColor : QColor

This property holds the color of the font used for labels. The default value depends on colorScheme.

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labelsVisible : bool

This property holds whether labels are drawn at all.

If this is false, all other label properties have no effect. The default value is true.

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multiHighlightColor : QColor

This property holds the highlight color for selected objects.

Used if selectionMode has the QtGraphs3D::SelectionFlag::Row or QtGraphs3D::SelectionFlag::Column flag set. The default value depends on colorScheme.

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multiHighlightGradient : QQuickGradient* const

This property holds the highlight gradient for selected objects.

Used if selectionMode has the QtGraphs3D::SelectionFlag::Row or QtGraphs3D::SelectionFlag::Column flag set. The default value depends on colorScheme.

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plotAreaBackgroundColor : QColor

This property holds the color of the graph plot area background. The default value depends on colorScheme.

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plotAreaBackgroundVisible : bool

This property holds whether the plot area background is visible.

The background is drawn by using the value of plotAreaBackgroundColor. The default value is true.

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seriesColors : QList<QColor>

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.

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singleHighlightColor : QColor

This property holds the highlight color for a selected object.

Used if selectionMode has the QtGraphs3D::SelectionFlag::Item flag set. The default value depends on colorScheme.

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singleHighlightGradient : QQuickGradient* const

This property holds the highlight gradient for a selected object.

Used if selectionMode has the QtGraphs3D::SelectionFlag::Item flag set. The default value depends on colorScheme.

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theme : QGraphsTheme::Theme

The type of the theme. If no type is set, the type is GraphsTheme.Theme.QtGreen. 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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