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#8676 QtChart : Create curve legend widget for multiplot

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This commit is contained in:
Magne Sjaastad
2022-03-23 13:07:08 +01:00
parent f45637b7f0
commit 696c6a15fa
14 changed files with 267 additions and 25 deletions
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80
ApplicationLibCode/UserInterface/RiuQwtPlotTools.cpp
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@@ -17,14 +17,21 @@
/////////////////////////////////////////////////////////////////////////////////
#include "RiuQwtPlotTools.h"
#include "RiuGuiTheme.h"
#include "RiaApplication.h"
#include "RiaColorTools.h"
#include "RiaPreferences.h"
#include "RiaQDateTimeTools.h"
#include "RimPlotCurve.h"
#include "RiuGuiTheme.h"
#include "RiuQtChartsPlotCurveSymbol.h"
#include "RiuQwtPlotLegend.h"
#include "qwt_date_scale_draw.h"
#include "qwt_date_scale_engine.h"
#include "qwt_graphic.h"
#include "qwt_painter.h"
#include "qwt_plot.h"
#include "qwt_plot_grid.h"
#include "qwt_plot_layout.h"
@@ -32,6 +39,7 @@
#include "qwt_scale_widget.h"
#include <QRegExp>
#include <vector>
//--------------------------------------------------------------------------------------------------
@@ -266,3 +274,71 @@ RiaDefines::PlotAxis RiuQwtPlotTools::fromQwtPlotAxis( QwtPlot::Axis axis )
return RiaDefines::PlotAxis::PLOT_AXIS_TOP;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RiuQwtPlotTools::updateLegendData( RiuQwtPlotLegend* legend, const std::vector<RimPlotCurve*>& curves )
{
QList<QwtLegendData> legendDataList = createLegendData( curves );
legend->updateLegend( QVariant(), legendDataList );
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
QList<QwtLegendData> RiuQwtPlotTools::createLegendData( const std::vector<RimPlotCurve*>& curves )
{
QList<QwtLegendData> legendDataList;
for ( auto c : curves )
{
QwtLegendData test;
test.setValue( QwtLegendData::Role::TitleRole, c->curveName() );
c->updateUiIconFromPlotSymbol();
auto icon = c->uiIcon();
auto size = icon->availableSizes().first();
// see QwtPlotCurve::legendIcon
QwtGraphic graphic;
{
graphic.setDefaultSize( size );
graphic.setRenderHint( QwtGraphic::RenderPensUnscaled, true );
QPainter painter( &graphic );
painter.setRenderHint( QPainter::Antialiasing );
{
QPen pn;
pn.setCapStyle( Qt::FlatCap );
pn.setColor( RiaColorTools::toQColor( c->color() ) );
painter.setPen( pn );
const double y = 0.5 * size.height();
QwtPainter::drawLine( &painter, 0.0, y, size.width(), y );
}
if ( c->symbol() != RiuQtChartsPlotCurveSymbol::SYMBOL_NONE )
{
RiuQtChartsPlotCurveSymbol symbol( c->symbol() );
symbol.setSize( size.height() / 2, size.height() / 2 );
symbol.setColor( RiaColorTools::toQColor( c->color() ) );
auto image = symbol.image();
QPoint p( size.width() / 4, size.height() / 4 );
painter.drawImage( p, image );
}
}
QVariant v = QVariant::fromValue( graphic );
test.setValue( QwtLegendData::Role::IconRole, v );
legendDataList.push_back( test );
}
return legendDataList;
}