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legend scaling with chart
legend scaling with chart
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r582:55274bcbec84
r582:55274bcbec84
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qlegend.cpp
232 lines | 6.0 KiB | text/x-c | CppLexer
/ src / qlegend.cpp
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sauimone
framework for legend
 r524 #include "qchartglobal.h"
#include "qlegend.h"
#include "qseries.h"
sauimone
Separated legend marker to private header. Added signals for left and right mouse click
 r547 #include "legendmarker_p.h"
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 #include "qxyseries.h"
#include "qlineseries.h"
#include "qareaseries.h"
#include "qscatterseries.h"
#include "qsplineseries.h"
#include "qbarseries.h"
#include "qstackedbarseries.h"
#include "qpercentbarseries.h"
#include "qbarset.h"
#include "qpieseries.h"
#include "qpieslice.h"
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 #include <QPainter>
#include <QPen>
sauimone
framework for legend
 r524
sauimone
Separated legend marker to private header. Added signals for left and right mouse click
 r547 #include <QGraphicsSceneEvent>
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529
sauimone
Separated legend marker to private header. Added signals for left and right mouse click
 r547 QTCOMMERCIALCHART_BEGIN_NAMESPACE
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529
sauimone
framework for legend
 r524 QLegend::QLegend(QGraphicsItem *parent)
: QGraphicsObject(parent)
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 ,mBoundingRect(0,0,1,1)
sauimone
background to legend, theme applies
 r540 ,mBackgroundBrush(Qt::darkGray) // TODO: from theme?
sauimone
legend scaling with chart
 r582 ,mMinimumSize(50,20) // TODO: magic numbers
sauimone
framework for legend
 r524 {
}
void QLegend::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
sauimone
background to legend, theme applies
 r540 painter->setBrush(mBackgroundBrush);
painter->drawRect(mBoundingRect);
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 foreach(LegendMarker* m, mMarkers) {
QRectF r = m->boundingRect();
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 painter->setBrush(m->brush());
sauimone
Separated legend marker to private header. Added signals for left and right mouse click
 r547 painter->drawText(r.x() + r.width()*2, r.y() + r.height(), m->name());
sauimone
framework for legend
 r524 }
}
QRectF QLegend::boundingRect() const
{
return mBoundingRect;
}
sauimone
background to legend, theme applies
 r540 void QLegend::setBackgroundBrush(const QBrush& brush)
{
mBackgroundBrush = brush;
}
QBrush QLegend::backgroundBrush() const
{
return mBackgroundBrush;
}
sauimone
legend scaling with chart
 r582 QSizeF QLegend::minimumSize() const
{
return mMinimumSize;
}
void QLegend::setMinimumSize(const QSizeF size)
{
mMinimumSize = size;
}
sauimone
framework for legend
 r524 void QLegend::handleSeriesAdded(QSeries* series,Domain* domain)
{
mSeriesList.append(series);
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565
switch (series->type())
{
case QSeries::SeriesTypeLine: {
QLineSeries* lineSeries = static_cast<QLineSeries*>(series);
createMarker(lineSeries);
break;
}
case QSeries::SeriesTypeArea: {
QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
createMarker(areaSeries->upperSeries());
Michal Klocek
Bugfix dangling pointer in qlegend, remove debug info
 r572 if(areaSeries->lowerSeries())
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 createMarker(areaSeries->lowerSeries());
break;
}
case QSeries::SeriesTypeBar: {
QBarSeries* barSeries = static_cast<QBarSeries*>(series);
createMarkers(barSeries);
break;
}
case QSeries::SeriesTypeStackedBar: {
QStackedBarSeries* stackedBarSeries = static_cast<QStackedBarSeries*>(series);
createMarkers(stackedBarSeries);
break;
}
case QSeries::SeriesTypePercentBar: {
QPercentBarSeries* percentBarSeries = static_cast<QPercentBarSeries*>(series);
createMarkers(percentBarSeries);
break;
}
case QSeries::SeriesTypeScatter: {
QScatterSeries *scatterSeries = static_cast<QScatterSeries *>(series);
createMarker(scatterSeries);
break;
}
case QSeries::SeriesTypePie: {
QPieSeries *pieSeries = static_cast<QPieSeries *>(series);
createMarkers(pieSeries);
break;
}
case QSeries::SeriesTypeSpline: {
QSplineSeries* splineSeries = static_cast<QSplineSeries*>(series);
sauimone
Legend can handle removing of series
 r576 createMarker(splineSeries);
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 break;
}
default: {
qDebug()<< "QLegend::handleSeriesAdded" << series->type() << "not implemented.";
break;
}
}
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 layoutChanged();
sauimone
framework for legend
 r524 }
void QLegend::handleSeriesRemoved(QSeries* series)
{
sauimone
Legend can handle removing of series
 r576 if (series->type() == QSeries::SeriesTypeArea)
{
// This is special case. Area series has upper and lower series, which each have markers
QAreaSeries* s = static_cast<QAreaSeries*> (series);
deleteMarkers(s->upperSeries());
deleteMarkers(s->lowerSeries());
} else {
deleteMarkers(series);
}
sauimone
framework for legend
 r524 mSeriesList.removeOne(series);
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 layoutChanged();
}
void QLegend::handleGeometryChanged(const QRectF& size)
{
mBoundingRect = size;
layoutChanged();
sauimone
framework for legend
 r524 }
sauimone
Legend can handle removing of series
 r576 void QLegend::deleteMarkers(QSeries *series)
{
// Search all markers that belong to given series and delete them.
foreach (LegendMarker *m, mMarkers) {
if (m->series() == series) {
mMarkers.removeOne(m);
delete m;
}
}
}
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 void QLegend::createMarker(QXYSeries* series)
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 {
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 LegendMarker* marker = new LegendMarker(series,this);
marker->setName(series->name());
marker->setBrush(series->brush());
sauimone
combined clicked and rightclicked events of legend to one event with parameter
 r567 connect(marker,SIGNAL(clicked(QSeries*,Qt::MouseButton)),this,SIGNAL(clicked(QSeries*,Qt::MouseButton)));
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 mMarkers.append(marker);
childItems().append(marker);
}
void QLegend::createMarkers(QBarSeries *series)
{
foreach(QBarSet* s, series->barSets()) {
sauimone
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 r576 LegendMarker* marker = new LegendMarker(series,s,this);
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 marker->setName(s->name());
marker->setBrush(s->brush());
sauimone
combined clicked and rightclicked events of legend to one event with parameter
 r567 connect(marker,SIGNAL(clicked(QBarSet*,Qt::MouseButton)),this,SIGNAL(clicked(QBarSet*,Qt::MouseButton)));
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 mMarkers.append(marker);
childItems().append(marker);
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 }
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 }
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 void QLegend::createMarkers(QPieSeries *series)
{
foreach(QPieSlice* s, series->slices()) {
sauimone
Legend can handle removing of series
 r576 LegendMarker* marker = new LegendMarker(series,s,this);
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 marker->setName(s->label());
marker->setBrush(s->sliceBrush());
sauimone
combined clicked and rightclicked events of legend to one event with parameter
 r567 connect(marker,SIGNAL(clicked(QPieSlice*,Qt::MouseButton)),this,SIGNAL(clicked(QPieSlice*,Qt::MouseButton)));
sauimone
more intelligent legend. fixed compiler warning in bar.cpp
 r565 mMarkers.append(marker);
childItems().append(marker);
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 }
}
void QLegend::layoutChanged()
{
// Calculate layout for markers and text
if (mMarkers.count() <= 0) {
// Nothing to do
return;
}
// TODO: marker defined by series.
QSizeF markerSize(10,10);
// TODO: better layout, this is just concept.
// Leave some space around markers like this: | x x x x |
sauimone
background to legend, theme applies
 r540 qreal steps = mMarkers.count();
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529
sauimone
background to legend, theme applies
 r540 qreal xStep = mBoundingRect.width() / steps;
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 qreal yStep = mBoundingRect.height() / steps;
sauimone
background to legend, theme applies
 r540 qreal x = mBoundingRect.x() + 5;
qreal y = mBoundingRect.y() + (mBoundingRect.height() - markerSize.height())/2;
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 foreach (LegendMarker* m, mMarkers) {
m->setBoundingRect(QRectF(x,y,markerSize.width(),markerSize.height()));
sauimone
background to legend, theme applies
 r540 x += xStep;
sauimone
First version of legend. Simple markers and serie names. Using drilldown as example for now.
 r529 }
}
sauimone
framework for legend
 r524 #include "moc_qlegend.cpp"
QTCOMMERCIALCHART_END_NAMESPACE