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#5600 Use an independent grid to show group dividers

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This commit is contained in:
Jacob Støren
2020-03-02 11:40:54 +01:00
parent 186332e707
commit 514409d9e4
1 changed files with 116 additions and 2 deletions
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118
ApplicationCode/UserInterface/AnalysisPlots/RiuGroupedBarChartBuilder.cpp
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@@ -25,6 +25,7 @@
#include "qwt_painter.h"
#include "qwt_plot.h"
#include "qwt_plot_barchart.h"
#include "qwt_plot_grid.h"
#include "qwt_plot_scaleitem.h"
#include "qwt_scale_draw.h"
#include "qwt_scale_widget.h"
@@ -242,6 +243,10 @@ void RiuGroupedBarChartBuilder::addBarChartToPlot( QwtPlot* plot, Qt::Orientatio
QList<double> midTickPositions;
QList<double> minTickPositions;
QList<double> majDividerPositions;
QList<double> midDividerPositions;
QList<double> minDividerPositions;
// Filter the entries according to value
std::multiset<BarEntry> filteredBarEntries;
if ( maxBarCount >= 0 )
@@ -286,8 +291,8 @@ void RiuGroupedBarChartBuilder::addBarChartToPlot( QwtPlot* plot, Qt::Orientatio
double tickPos = midPoint( groupStartPos, currentBarPosition );
QwtScaleDiv::TickType ttyp = (&groupTickPosList == &majTickPositions ) ? QwtScaleDiv::MajorTick
: ( &groupTickPosList == &midTickPositions ) ? QwtScaleDiv::MediumTick
: QwtScaleDiv::MinorTick;
: ( &groupTickPosList == &midTickPositions ) ? QwtScaleDiv::MediumTick
: QwtScaleDiv::MinorTick;
// Make sure we do not get ticks of different level exactly at the same spot,
// so that the drawing is able to distinguish
@@ -299,6 +304,24 @@ void RiuGroupedBarChartBuilder::addBarChartToPlot( QwtPlot* plot, Qt::Orientatio
groupTickPosList.push_back( tickPos );
};
auto addGroupDivider = [&]( double position, QList<double>& groupDividerPosList)
{
QwtScaleDiv::TickType ttyp =
(&groupDividerPosList == &majDividerPositions) ? QwtScaleDiv::MajorTick
: (&groupDividerPosList == &midDividerPositions) ? QwtScaleDiv::MediumTick
: QwtScaleDiv::MinorTick;
// Make sure we do not get ticks of different level exactly at the same spot,
// so that the drawing is able to distinguish
double spacing = majGroupSpacing;
if( ttyp == QwtScaleDiv::MediumTick ){ spacing = midGroupSpacing; }
if( ttyp == QwtScaleDiv::MinorTick ) { spacing = minGroupSpacing; }
groupDividerPosList.push_back(currentBarPosition - 0.5 - 0.5*spacing);
};
// clang-format on
// Loop over entries, calculate tick positions and bar positions as we go
@@ -317,6 +340,8 @@ void RiuGroupedBarChartBuilder::addBarChartToPlot( QwtPlot* plot, Qt::Orientatio
addGroupTickText( currentMinGroupStartPos, previousMinText, minTickPositions );
currentBarPosition += majGroupSpacing;
addGroupDivider( currentBarPosition, majDividerPositions );
}
if ( isStartingNewMajGroup )
@@ -344,6 +369,8 @@ void RiuGroupedBarChartBuilder::addBarChartToPlot( QwtPlot* plot, Qt::Orientatio
addGroupTickText( currentMinGroupStartPos, previousMinText, minTickPositions );
currentBarPosition += midGroupSpacing;
addGroupDivider( currentBarPosition, midDividerPositions );
}
if ( isStartingNewMidGroup )
@@ -469,6 +496,93 @@ void RiuGroupedBarChartBuilder::addBarChartToPlot( QwtPlot* plot, Qt::Orientatio
plot->setAxisScaleDraw( valueAxis, new QwtScaleDraw() );
}
// Setup grids
{
QwtPlotGrid* plotGrid = nullptr;
QwtPlotGrid* groupGrid = nullptr;
// Get or create the two grids used in the plot
{
QwtPlotItemList gridList = plot->itemList( QwtPlotItem::Rtti_PlotGrid );
for ( QwtPlotItem* plItem : gridList )
{
QwtPlotGrid* someGrid = dynamic_cast<QwtPlotGrid*>( plItem );
if ( someGrid )
{
if ( someGrid->title() == QString( "GroupGrid" ) )
{
groupGrid = someGrid;
}
else
{
plotGrid = someGrid;
}
}
}
if ( !groupGrid )
{
groupGrid = new QwtPlotGrid;
groupGrid->setTitle( QString( "GroupGrid" ) );
groupGrid->attach( plot );
QPen gridPen( Qt::SolidLine );
gridPen.setColor( Qt::lightGray );
groupGrid->setPen( gridPen );
groupGrid->enableYMin( true );
groupGrid->enableXMin( true );
}
}
if ( groupGrid )
{
QwtScaleDiv gridDividerScaleDiv( 0, currentBarPosition );
if ( majDividerPositions.size() )
{
gridDividerScaleDiv.setTicks( QwtScaleDiv::MajorTick, majDividerPositions );
}
if ( midDividerPositions.size() )
{
gridDividerScaleDiv.setTicks( QwtScaleDiv::MediumTick, midDividerPositions );
}
if ( minDividerPositions.size() )
{
gridDividerScaleDiv.setTicks( QwtScaleDiv::MinorTick, minDividerPositions );
}
if ( barOrientation == Qt::Horizontal )
{
gridDividerScaleDiv.invert();
groupGrid->setYDiv( gridDividerScaleDiv );
groupGrid->enableX( false );
groupGrid->enableY( true );
}
else
{
groupGrid->setXDiv( gridDividerScaleDiv );
groupGrid->enableX( true );
groupGrid->enableY( false );
}
groupGrid->setItemInterest( QwtPlotItem::ScaleInterest, false );
}
if ( plotGrid )
{
if ( barOrientation == Qt::Horizontal )
{
plotGrid->enableX( true );
plotGrid->enableY( false );
}
else
{
plotGrid->enableX( false );
plotGrid->enableY( true );
}
}
}
// Add texts on the bars inside the plot
{
QwtScaleDraw::Alignment alignment = QwtScaleDraw::TopScale;