本文整理汇总了C++中QwtDynGridLayout::setMaxCols方法的典型用法代码示例。如果您正苦于以下问题：C++ QwtDynGridLayout::setMaxCols方法的具体用法？C++ QwtDynGridLayout::setMaxCols怎么用？C++ QwtDynGridLayout::setMaxCols使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QwtDynGridLayout的用法示例。
在下文中一共展示了QwtDynGridLayout::setMaxCols方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: insertLegend
/*!
\brief Insert a legend
If the position legend is \c QwtPlot::LeftLegend or \c QwtPlot::RightLegend
the legend will be organized in one column from top to down.
Otherwise the legend items will be placed in a table
with a best fit number of columns from left to right.
If pos != QwtPlot::ExternalLegend the plot widget will become
parent of the legend. It will be deleted when the plot is deleted,
or another legend is set with insertLegend().
\param legend Legend
\param pos The legend's position. For top/left position the number
of colums will be limited to 1, otherwise it will be set to
unlimited.
\param ratio Ratio between legend and the bounding rect
of title, canvas and axes. The legend will be shrinked
if it would need more space than the given ratio.
The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0
it will be reset to the default ratio.
The default vertical/horizontal ratio is 0.33/0.5.
\sa legend(), QwtPlotLayout::legendPosition(),
QwtPlotLayout::setLegendPosition()
*/
void QwtPlot::insertLegend(QwtLegend *legend,
QwtPlot::LegendPosition pos, double ratio)
{
d_data->layout->setLegendPosition(pos, ratio);
if ( legend != d_data->legend )
{
if ( d_data->legend && d_data->legend->parent() == this )
delete d_data->legend;
d_data->legend = legend;
if ( d_data->legend )
{
if ( pos != ExternalLegend )
{
if ( d_data->legend->parent() != this )
{
#if QT_VERSION < 0x040000
d_data->legend->reparent(this, QPoint(0, 0));
#else
d_data->legend->setParent(this);
#endif
}
}
const QwtPlotItemList& itmList = itemList();
for ( QwtPlotItemIterator it = itmList.begin();
it != itmList.end(); ++it )
{
(*it)->updateLegend(d_data->legend);
}
QLayout *l = d_data->legend->contentsWidget()->layout();
if ( l && l->inherits("QwtDynGridLayout") )
{
QwtDynGridLayout *tl = (QwtDynGridLayout *)l;
switch(d_data->layout->legendPosition())
{
case LeftLegend:
case RightLegend:
tl->setMaxCols(1); // 1 column: align vertical
break;
case TopLegend:
case BottomLegend:
tl->setMaxCols(0); // unlimited
break;
case ExternalLegend:
break;
}
}
}
updateTabOrder();
}
updateLayout();
}示例2: insertLegend
/*!
\brief Insert a legend
If the position legend is \c QwtPlot::LeftLegend or \c QwtPlot::RightLegend
the legend will be organized in one column from top to down.
Otherwise the legend items will be placed in a table
with a best fit number of columns from left to right.
If pos != QwtPlot::ExternalLegend the plot widget will become
parent of the legend. It will be deleted when the plot is deleted,
or another legend is set with insertLegend().
\param legend Legend
\param pos The legend's position. For top/left position the number
of colums will be limited to 1, otherwise it will be set to
unlimited.
\param ratio Ratio between legend and the bounding rect
of title, canvas and axes. The legend will be shrinked
if it would need more space than the given ratio.
The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0
it will be reset to the default ratio.
The default vertical/horizontal ratio is 0.33/0.5.
\sa legend(), QwtPlotLayout::legendPosition(),
QwtPlotLayout::setLegendPosition()
*/
void QwtPlot::insertLegend( QwtLegend *legend,
QwtPlot::LegendPosition pos, double ratio )
{
d_data->layout->setLegendPosition( pos, ratio );
if ( legend != d_data->legend )
{
if ( d_data->legend && d_data->legend->parent() == this )
delete d_data->legend;
d_data->legend = legend;
if ( d_data->legend )
{
if ( pos != ExternalLegend )
{
if ( d_data->legend->parent() != this )
d_data->legend->setParent( this );
}
const QwtPlotItemList& itmList = itemList();
for ( QwtPlotItemIterator it = itmList.begin();
it != itmList.end(); ++it )
{
( *it )->updateLegend( d_data->legend );
}
QwtDynGridLayout *tl = qobject_cast<QwtDynGridLayout *>(
d_data->legend->contentsWidget()->layout() );
if ( tl )
{
switch ( d_data->layout->legendPosition() )
{
case LeftLegend:
case RightLegend:
tl->setMaxCols( 1 ); // 1 column: align vertical
break;
case TopLegend:
case BottomLegend:
tl->setMaxCols( 0 ); // unlimited
break;
case ExternalLegend:
break;
}
}
}
updateTabOrder();
}
updateLayout();
}示例3: setLegendPosition
/*!
Specify the position of the legend within the widget.
If the position legend is \c QwtPlot::Left or \c QwtPlot::Right
the legend will be organized in one column from top to down.
Otherwise the legend items will be placed be placed in a table
with a best fit number of columns from left to right.
\param pos The legend's position. Valid values are \c QwtPlot::Left,
\c QwtPlot::Right, \c QwtPlot::Top, \c QwtPlot::Bottom.
\param ratio Ratio between legend and the bounding rect
of title, canvas and axes. The legend will be shrinked
if it would need more space than the given ratio.
The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0
it will be reset to the default ratio.
The default vertical/horizontal ratio is 0.33/0.5.
\sa QwtPlot::legendPosition(), QwtPlotLayout::setLegendPosition()
*/
void QwtPlot::setLegendPosition(QwtPlot::Position pos, double ratio)
{
if (pos != d_layout->legendPosition())
{
d_layout->setLegendPosition(pos, ratio);
QLayout *l = d_legend->contentsWidget()->layout();
if ( l && l->inherits("QwtDynGridLayout") )
{
QwtDynGridLayout *tl = (QwtDynGridLayout *)l;
if ( d_layout->legendPosition() == QwtPlot::Top ||
d_layout->legendPosition() == QwtPlot::Bottom )
{
tl->setMaxCols(0); // unlimited
}
else
tl->setMaxCols(1); // 1 column: align vertical
}
updateLayout();
updateTabOrder();
}
}