1. 首頁
2. Qt 6.10.1
3. Qt Graphs
4. C++ 類
5. QtGraphs

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);
					

成員類型文檔編製

enum class QGraphsTheme:: ColorScheme

Represents the color scheme of the graph.

另請參閱 Qt::ColorScheme .

enum class QGraphsTheme:: ColorStyle

Gradient types.

enum class QGraphsTheme:: Theme

內置主題。

特性文檔編製

axisXLabelFont : QFont

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

訪問函數：

通知程序信號：

axisYLabelFont : QFont

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

訪問函數：

通知程序信號：

axisZLabelFont : QFont

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

訪問函數：

通知程序信號：

backgroundColor : QColor

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

訪問函數：

通知程序信號：

backgroundVisible : bool

此特性保持背景是否可見。

The background is drawn by using the value of backgroundColor 。默認值為 true .

訪問函數：

通知程序信號：

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.

訪問函數：

通知程序信號：

borderWidth : qreal

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

訪問函數：

通知程序信號：

colorScheme : QGraphsTheme::ColorScheme

The color scheme of the graph in use.

訪問函數：

通知程序信號：

另請參閱 Qt::ColorScheme .

colorStyle : QGraphsTheme::ColorStyle

The style of the graph colors. One of QGraphsTheme::ColorStyle 枚舉值。

This value can be overridden by setting Abstract3DSeries.colorStyle explicitly in the series.

注意： This property does not have an effect in Qt Graphs for 2D.

訪問函數：

通知程序信號：

另請參閱 QGraphsTheme::ColorStyle .

gridVisible : bool

此特性保持是否繪製柵格綫。

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

訪問函數：

通知程序信號：

labelBackgroundColor : QColor

此特性保持標簽背景的顔色。

不起作用若 labelBackgroundVisible is false . The default value depends on colorScheme .

訪問函數：

通知程序信號：

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 .

訪問函數：

通知程序信號：

labelBorderVisible : bool

此特性保持是否為擁有背景的標簽繪製標簽邊框。

不起作用若 labelBackgroundVisible is false 。默認值為 true .

訪問函數：

通知程序信號：

labelFont : QFont

此特性保持用於標簽的字體。

訪問函數：

通知程序信號：

labelTextColor : QColor

此特性保持用於標簽的字體顔色。

If an axis has specified labelTextColor explicitly, this has no effect.

The default value depends on colorScheme .

訪問函數：

通知程序信號：

labelsVisible : bool

This property holds whether labels are drawn at all.

若這為 false , all other label properties have no effect. The default value is true .

訪問函數：

通知程序信號：

multiHighlightColor : QColor

This property holds the highlight color for selected objects.

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

訪問函數：

通知程序信號：

multiHighlightGradient : QQuickGradient * const

This property holds the highlight gradient for selected objects.

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

通知程序信號：

plotAreaBackgroundColor : QColor

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

訪問函數：

通知程序信號：

plotAreaBackgroundVisible : bool

This property holds whether the plot area background is visible.

The background is drawn by using the value of plotAreaBackgroundColor 。默認值為 true .

訪問函數：

通知程序信號：

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.

訪問函數：

通知程序信號：

singleHighlightColor : QColor

This property holds the highlight color for a selected object.

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

訪問函數：

通知程序信號：

singleHighlightGradient : QQuickGradient * const

This property holds the highlight gradient for a selected object.

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

通知程序信號：

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.

訪問函數：

通知程序信號：

成員函數文檔編製

QList < QLinearGradient > QGraphsTheme:: seriesGradients () const

Returns the list of series gradients used by theme.

另請參閱 setSeriesGradients ().

void QGraphsTheme:: setSeriesGradients (const QList < QLinearGradient > & newSeriesGradients )

設置 newSeriesGradients as the series gradients for the theme.

另請參閱 seriesGradients ().