QwtPlotLayoutEngine::LayoutData::LegendData结构体 参考

Data for legend layout calculation 更多...

#include <qwt_plot_layout_engine.h>

Public 成员函数
void	init (const QwtAbstractLegend *legend)
	Initialize legend data from a QwtAbstractLegend
QSize	legendHint (const QwtAbstractLegend *legend, const QRectF &rect) const
	Calculate optimal legend size for given rectangle

Public 属性
int	frameWidth
int	hScrollExtent
int	vScrollExtent
QSize	hint

详细描述

Data for legend layout calculation

Contains frame width, scroll extents, and size hint for the legend.

成员函数说明

init()

void QwtPlotLayoutEngine::LayoutData::LegendData::init

(

const QwtAbstractLegend *

legend

)

Initialize legend data from a QwtAbstractLegend

Extracts frame width, scroll extents and size hint from the legend widget.

参数

legend

Pointer to the legend widget

legendHint()

QSize QwtPlotLayoutEngine::LayoutData::LegendData::legendHint	(	const QwtAbstractLegend *	legend,
		const QRectF &	rect
	)		const

Calculate optimal legend size for given rectangle

Determines the best size for the legend within the available space, considering both width and height constraints.

参数

legend	Pointer to the legend widget
rect	Available rectangle for the legend

返回

Optimal size for the legend

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该结构体的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/plot/qwt_plot_layout_engine.h
• /home/runner/work/QWT/QWT/src/plot/qwt_plot_layout_engine.cpp