mirror of
https://github.com/python-LimeReport/LimeReport.git
synced 2024-12-25 13:04:38 +03:00
841 lines
25 KiB
C++
841 lines
25 KiB
C++
#include "lrchartitem.h"
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#include <QStyleOptionGraphicsItem>
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#include <QPainter>
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#include "lrdesignelementsfactory.h"
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#include "lrchartitemeditor.h"
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#include "lrdatasourcemanager.h"
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#include "lrpagedesignintf.h"
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#include "lrreportengine_p.h"
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#include "lrdatadesignintf.h"
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#include "charts/lrpiechart.h"
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#include "charts/lrverticalbarchart.h"
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#include "charts/lrhorizontalbarchart.h"
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#include "charts/lrlineschart.h"
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namespace{
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const QString xmlTag = "ChartItem";
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LimeReport::BaseDesignIntf * createChartItem(QObject* owner, LimeReport::BaseDesignIntf* parent){
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return new LimeReport::ChartItem(owner,parent);
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}
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bool registred = LimeReport::DesignElementsFactory::instance().registerCreator(
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xmlTag, LimeReport::ItemAttribs(QObject::tr("Chart Item"),"Item"), createChartItem
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);
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}
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namespace LimeReport{
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QColor generateColor()
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{
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int red = (rand()%(256 - 1)) + 1;
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int green = (rand()%(256 - 1)) + 1;
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int blue = (rand()%(256 - 1)) + 1;;
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return QColor(red,green,blue);
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}
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QColor color_map[39] = {
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QColor(51,102,204), QColor(220,57,18), QColor(225, 153, 0), QColor(16, 150, 24),
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QColor(153,0,153), QColor(0,153,198), QColor(221, 68, 119), QColor(255,0,0),
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QColor(0,0,139), QColor(0,205,0), QColor(233,30,99), QColor(255,255,0),
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QColor(244,67,54), QColor(156,39,176), QColor(103,58,183), QColor(63,81,181),
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QColor(33,153,243), QColor(0,150,136), QColor(78,175,80), QColor(139,195,74),
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QColor(205,228,57), QColor(0,139,0), QColor(0,0,255), QColor(255,235,59),
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QColor(255,193,7), QColor(255,152,0), QColor(255,87,34), QColor(121,85,72),
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QColor(158,158,158), QColor(96,125,139), QColor(241,153,185), QColor(64,64,64),
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QColor(188,229,218), QColor(139,0,0), QColor(139,139,0), QColor(171, 130, 255),
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QColor(139, 123, 139), QColor(255, 0, 255), QColor(139, 69, 19)
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};
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QString SeriesItem::name() const
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{
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return m_name;
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}
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void SeriesItem::setName(const QString &name)
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{
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m_name = name;
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}
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QString SeriesItem::valuesColumn() const
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{
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return m_valuesColumn;
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}
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void SeriesItem::setValuesColumn(const QString &valuesColumn)
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{
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m_valuesColumn = valuesColumn;
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}
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QString SeriesItem::labelsColumn() const
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{
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return m_labelsColumn;
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}
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void SeriesItem::setLabelsColumn(const QString &labelsColumn)
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{
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m_labelsColumn = labelsColumn;
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}
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SeriesItem *SeriesItem::clone()
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{
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SeriesItem* result = new SeriesItem();
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for (int i = 0; i < this->metaObject()->propertyCount(); ++i){
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result->setProperty(this->metaObject()->property(i).name(),property(this->metaObject()->property(i).name()));
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}
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return result;
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}
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void SeriesItem::fillSeriesData(IDataSource *dataSource)
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{
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m_data.clear();
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if (dataSource){
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dataSource->first();
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int currentColorIndex = 0;
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while(!dataSource->eof()){
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if (!m_labelsColumn.isEmpty())
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m_data.labels().append(dataSource->data(m_labelsColumn).toString());
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m_data.values().append(dataSource->data(m_valuesColumn).toDouble());
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m_data.colors().append((currentColorIndex<32)?color_map[currentColorIndex]:generateColor());
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dataSource->next();
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currentColorIndex++;
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}
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}
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}
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QColor SeriesItem::color() const
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{
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return m_color;
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}
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void SeriesItem::setColor(const QColor &color)
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{
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m_color = color;
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}
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SeriesItem::SeriesItemPreferredType SeriesItem::preferredType() const
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{
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return m_preferredType;
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}
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void SeriesItem::setPreferredType(const SeriesItemPreferredType& type)
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{
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m_preferredType = type;
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}
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ChartItem::ChartItem(QObject *owner, QGraphicsItem *parent)
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: ItemDesignIntf(xmlTag, owner, parent), m_legendBorder(true),
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m_legendAlign(LegendAlignCenter), m_titleAlign(TitleAlignCenter),
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m_chartType(Pie), m_labelsField(""), m_isEmpty(true),
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m_showLegend(true)
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{
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m_labels<<"First"<<"Second"<<"Thrid";
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m_chart = new PieChart(this);
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}
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ChartItem::~ChartItem()
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{
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foreach (SeriesItem* series, m_series) {
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delete series;
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}
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m_series.clear();
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delete m_chart;
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}
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ChartItem::TitleAlign ChartItem::titleAlign() const
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{
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return m_titleAlign;
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}
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void ChartItem::setTitleAlign(const TitleAlign &titleAlign)
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{
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if (m_titleAlign != titleAlign){
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TitleAlign oldValue = m_titleAlign;
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m_titleAlign = titleAlign;
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notify("titleAlign",oldValue,m_titleAlign);
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update();
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}
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}
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void ChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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painter->save();
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setupPainter(painter);
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painter->setFont(transformToSceneFont(painter->font()));
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painter->setRenderHint(QPainter::Antialiasing,true);
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painter->setRenderHint(QPainter::TextAntialiasing,true);
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qreal borderMargin = (rect().height()*0.01>10)?(10):(rect().height()*0.01);
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qreal maxTitleHeight = rect().height()*0.2;
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QFont tmpFont = painter->font();
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qreal titleOffset = !m_title.isEmpty()?(((painter->fontMetrics().height()+borderMargin*2)<maxTitleHeight)?
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(painter->fontMetrics().height()+borderMargin*2):
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(maxTitleHeight)):0;
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QRectF titleRect = QRectF(borderMargin,borderMargin,rect().width()-borderMargin*2,titleOffset);
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QRectF legendRect = QRectF(0,0,0,0);
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if (m_showLegend)
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legendRect = m_chart->calcChartLegendRect(painter->font(), rect(), false, borderMargin, titleOffset);
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QRectF diagramRect = rect().adjusted(borderMargin,titleOffset+borderMargin,
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-(legendRect.width()+borderMargin*2),-borderMargin);
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paintChartTitle(painter, titleRect);
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if (m_showLegend)
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m_chart->paintChartLegend(painter,legendRect);
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m_chart->paintChart(painter,diagramRect);
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painter->restore();
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ItemDesignIntf::paint(painter,option,widget);
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}
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BaseDesignIntf *ChartItem::createSameTypeItem(QObject *owner, QGraphicsItem *parent)
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{
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ChartItem* result = new ChartItem(owner,parent);
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foreach (SeriesItem* series, m_series) {
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result->m_series.append(series->clone());
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}
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return result;
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}
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QObject *ChartItem::createElement(const QString &collectionName, const QString &elementType)
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{
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Q_UNUSED(elementType);
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if (collectionName.compare("series")==0){
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SeriesItem* seriesItem = new SeriesItem();
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m_series.append(seriesItem);
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return seriesItem;
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}
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return 0;
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}
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int ChartItem::elementsCount(const QString &collectionName)
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{
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if (collectionName.compare("series")==0)
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return m_series.count();
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return 0;
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}
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QObject *ChartItem::elementAt(const QString &collectionName, int index)
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{
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if (collectionName.compare("series")==0)
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return m_series.at(index);
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return 0;
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}
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void ChartItem::updateItemSize(DataSourceManager *dataManager, RenderPass , int )
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{
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m_isEmpty = false;
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if (dataManager && dataManager->dataSource(m_datasource)){
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IDataSource* ds = dataManager->dataSource(m_datasource);
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foreach (SeriesItem* series, m_series) {
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if (series->isEmpty()){
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series->setLabelsColumn(m_labelsField);
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series->fillSeriesData(ds);
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}
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}
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fillLabels(ds);
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}
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}
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void ChartItem::fillLabels(IDataSource *dataSource)
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{
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m_labels.clear();
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if (dataSource && !m_labelsField.isEmpty()){
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dataSource->first();
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while(!dataSource->eof()){
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m_labels.append(dataSource->data(m_labelsField).toString());
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dataSource->next();
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}
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}
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}
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QWidget *ChartItem::defaultEditor()
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{
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QSettings* l_settings = (page()->settings() != 0) ?
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page()->settings() :
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(page()->reportEditor()!=0) ? page()->reportEditor()->settings() : 0;
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QWidget* editor = new ChartItemEditor(this, page(), l_settings);
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editor->setAttribute(Qt::WA_DeleteOnClose);
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return editor;
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}
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bool ChartItem::isNeedUpdateSize(RenderPass pass) const
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{
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return pass == FirstPass && m_isEmpty;
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}
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bool ChartItem::showLegend() const
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{
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return m_showLegend;
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}
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void ChartItem::setShowLegend(bool showLegend)
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{
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if (m_showLegend != showLegend){
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m_showLegend = showLegend;
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notify("showLegend", !m_showLegend, m_showLegend);
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update();
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}
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m_showLegend = showLegend;
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}
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QList<QString> ChartItem::labels() const
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{
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return m_labels;
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}
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void ChartItem::setLabels(const QList<QString> &labels)
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{
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m_labels = labels;
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}
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QString ChartItem::labelsField() const
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{
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return m_labelsField;
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}
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void ChartItem::setLabelsField(const QString &labelsField)
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{
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m_labelsField = labelsField;
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}
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ChartItem::ChartType ChartItem::chartType() const
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{
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return m_chartType;
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}
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void ChartItem::setChartType(const ChartType &chartType)
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{
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if (m_chartType != chartType){
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ChartType oldValue = m_chartType;
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m_chartType = chartType;
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delete m_chart;
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switch (m_chartType) {
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case Pie:
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m_chart = new PieChart(this);
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break;
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case VerticalBar:
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m_chart = new VerticalBarChart(this);
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break;
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case HorizontalBar:
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m_chart = new HorizontalBarChart(this);
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break;
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case Lines:
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m_chart = new LinesChart(this);
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}
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notify("chartType",oldValue,m_chartType);
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update();
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}
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}
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QString ChartItem::datasource() const
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{
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return m_datasource;
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}
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void ChartItem::setDatasource(const QString &datasource)
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{
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m_datasource = datasource;
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}
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void ChartItem::paintChartTitle(QPainter *painter, QRectF titleRect)
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{
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painter->save();
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QFont tmpFont = painter->font();
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QFontMetrics fm(tmpFont);
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while ((fm.height()>titleRect.height() || fm.boundingRect(m_title).width()>titleRect.width())
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&& tmpFont.pixelSize()>1) {
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tmpFont.setPixelSize(tmpFont.pixelSize()-1);
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fm = QFontMetrics(tmpFont);
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}
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painter->setFont(tmpFont);
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Qt::AlignmentFlag align = Qt::AlignCenter;
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switch (m_titleAlign) {
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case TitleAlignLeft:
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align = Qt::AlignLeft;
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break;
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case TitleAlignCenter:
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align = Qt::AlignCenter;
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break;
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case TitleAlignRight:
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align = Qt::AlignRight;
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break;
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}
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painter->drawText(titleRect, align, m_title);
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painter->restore();
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}
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ChartItem::LegendAlign ChartItem::legendAlign() const
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{
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return m_legendAlign;
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}
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void ChartItem::setLegendAlign(const LegendAlign &legendAlign)
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{
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if (m_legendAlign != legendAlign){
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LegendAlign oldValue = m_legendAlign;
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m_legendAlign = legendAlign;
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notify("legendAlign",oldValue,m_legendAlign);
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update();
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}
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}
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bool ChartItem::drawLegendBorder() const
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{
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return m_legendBorder;
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}
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void ChartItem::setDrawLegendBorder(bool legendBorder)
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{
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if (m_legendBorder!=legendBorder){
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m_legendBorder = legendBorder;
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notify("legendBorder",!m_legendBorder,m_legendBorder);
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update();
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}
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}
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QString ChartItem::chartTitle() const
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{
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return m_title;
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}
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void ChartItem::setChartTitle(const QString &title)
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{
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if (m_title != title){
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QString oldValue = m_title;
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m_title = title;
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update();
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notify("chartTitle",oldValue,title);
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}
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}
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QList<SeriesItem *> &ChartItem::series()
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{
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return m_series;
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}
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void ChartItem::setSeries(const QList<SeriesItem *> &series)
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{
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m_series = series;
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}
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bool ChartItem::isSeriesExists(const QString &name)
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{
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foreach (SeriesItem* series, m_series) {
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if (series->name().compare(name)==0) return true;
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}
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return false;
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}
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AbstractChart::AbstractChart(ChartItem *chartItem)
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:m_chartItem(chartItem)
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{
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m_designLabels<<QObject::tr("First")<<QObject::tr("Second")<<QObject::tr("Thrid");
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}
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QRectF AbstractChart::calcChartLegendRect(const QFont &font, const QRectF &parentRect, bool takeAllRect, qreal borderMargin, qreal titleOffset)
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{
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QSizeF legendSize = calcChartLegendSize(font);
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qreal legendTopMargin = 0;
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qreal legendBottomMargin = 0;
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switch (m_chartItem->legendAlign()) {
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case ChartItem::LegendAlignTop:
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legendTopMargin = titleOffset+borderMargin;
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legendBottomMargin = parentRect.height()-(legendSize.height()+titleOffset);
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break;
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case ChartItem::LegendAlignCenter:
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legendTopMargin = titleOffset+(parentRect.height()-titleOffset-legendSize.height())/2;
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legendBottomMargin = (parentRect.height()-titleOffset-legendSize.height())/2;
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break;
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case ChartItem::LegendAlignBottom:
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legendTopMargin = parentRect.height()-(legendSize.height()+titleOffset);
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legendBottomMargin = borderMargin;
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break;
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}
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qreal rightOffset = !takeAllRect?((legendSize.width()>parentRect.width()/2-borderMargin)?
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(parentRect.width()/2):
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(parentRect.width()-legendSize.width())):0;
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QRectF legendRect = parentRect.adjusted(
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rightOffset,
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(legendSize.height()>(parentRect.height()-titleOffset))?(titleOffset):(legendTopMargin),
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-borderMargin,
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(legendSize.height()>(parentRect.height()-titleOffset))?(0):(-legendBottomMargin)
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);
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return legendRect;
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}
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void AbstractChart::prepareLegendToPaint(QRectF &legendRect, QPainter *painter)
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{
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QFont tmpFont = painter->font();
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QSizeF legendSize = calcChartLegendSize(tmpFont);
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if ((legendSize.height()>legendRect.height() || legendSize.width()>legendRect.width())){
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while ( (legendSize.height()>legendRect.height() || legendSize.width()>legendRect.width())
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&& tmpFont.pixelSize()>1)
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{
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tmpFont.setPixelSize(tmpFont.pixelSize()-1);
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painter->setFont(tmpFont);
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legendSize = calcChartLegendSize(tmpFont);
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}
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painter->setFont(tmpFont);
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legendRect = calcChartLegendRect(tmpFont, legendRect, true, 0, 0);
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}
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}
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int genNextValue(int value){
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int curValue = value;
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while (curValue % 4 != 0){
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curValue++;
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}
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return curValue;
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}
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AbstractSeriesChart::AbstractSeriesChart(ChartItem *chartItem)
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:AbstractChart(chartItem)
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{
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m_designValues[0] = 10;
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m_designValues[1] = 35;
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m_designValues[2] = 15;
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m_designValues[3] = 5;
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m_designValues[4] = 20;
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m_designValues[5] = 10;
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m_designValues[6] = 40;
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m_designValues[7] = 20;
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m_designValues[8] = 5;
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}
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qreal AbstractSeriesChart::maxValue()
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{
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return m_maxValue;
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}
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qreal AbstractSeriesChart::minValue()
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{
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return m_minValue;
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}
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void AbstractSeriesChart::updateMinAndMaxValues()
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{
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if (m_chartItem->itemMode() == DesignMode) {
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m_maxValue = 40;
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m_minValue = 0;
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return;
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}
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m_minValue = 0;
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m_maxValue = 0;
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foreach(SeriesItem* series, m_chartItem->series()){
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foreach(qreal value, series->data()->values()){
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if (value<m_minValue) m_minValue=value;
|
|
if (value>m_maxValue) m_maxValue=value;
|
|
}
|
|
}
|
|
}
|
|
|
|
qreal AbstractSeriesChart::hPadding(QRectF chartRect)
|
|
{
|
|
return (chartRect.width() * 0.02);
|
|
}
|
|
|
|
qreal AbstractSeriesChart::vPadding(QRectF chartRect)
|
|
{
|
|
return (chartRect.height() * 0.02);
|
|
}
|
|
|
|
int AbstractSeriesChart::valuesCount()
|
|
{
|
|
if (m_chartItem->itemMode() == DesignMode) return 3;
|
|
return (m_chartItem->series().isEmpty()) ? 0 : m_chartItem->series().at(0)->data()->values().count();
|
|
}
|
|
|
|
int AbstractSeriesChart::seriesCount()
|
|
{
|
|
if (m_chartItem->itemMode() == DesignMode) return 3;
|
|
return m_chartItem->series().count();
|
|
}
|
|
|
|
QSizeF AbstractSeriesChart::calcChartLegendSize(const QFont &font)
|
|
{
|
|
QFontMetrics fm(font);
|
|
|
|
qreal cw = 0;
|
|
qreal maxWidth = 0;
|
|
|
|
if (!m_chartItem->series().isEmpty()){
|
|
foreach(SeriesItem* series, m_chartItem->series()){
|
|
cw += fm.height();
|
|
if (maxWidth<fm.boundingRect(series->name()).width())
|
|
maxWidth = fm.boundingRect(series->name()).width()+10;
|
|
}
|
|
} else {
|
|
foreach(QString label, m_designLabels){
|
|
cw += fm.height();
|
|
if (maxWidth<fm.boundingRect(label).width())
|
|
maxWidth = fm.boundingRect(label).width()+10;
|
|
}
|
|
}
|
|
cw += fm.height();
|
|
return QSizeF(maxWidth+fm.height()*2,cw);
|
|
}
|
|
|
|
bool AbstractSeriesChart::verticalLabels(QPainter* painter, QRectF labelsRect)
|
|
{
|
|
if (valuesCount() == 0) return false;
|
|
|
|
qreal hStep = (labelsRect.width() / valuesCount());
|
|
QFontMetrics fm = painter->fontMetrics();
|
|
foreach(QString label, m_chartItem->labels()){
|
|
if (fm.boundingRect(label).width() > hStep){
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void AbstractSeriesChart::paintHorizontalLabels(QPainter *painter, QRectF labelsRect)
|
|
{
|
|
if (valuesCount() == 0) return;
|
|
|
|
painter->save();
|
|
qreal hStep = (labelsRect.width() / valuesCount());
|
|
if (!m_chartItem->labels().isEmpty()){
|
|
if (verticalLabels(painter, labelsRect)){
|
|
painter->rotate(270);
|
|
painter->translate( -(labelsRect.top()+labelsRect.height()), labelsRect.left() );
|
|
foreach (QString label, m_chartItem->labels()) {
|
|
painter->drawText(QRectF(QPoint(0,0),
|
|
QSize(labelsRect.height()-4, hStep)), Qt::AlignVCenter | Qt::AlignRight, label);
|
|
painter->translate(0,hStep);
|
|
}
|
|
painter->rotate(-270);
|
|
} else {
|
|
painter->translate( labelsRect.left(), labelsRect.top() );
|
|
foreach (QString label, m_chartItem->labels()) {
|
|
painter->drawText(QRectF(QPoint(0, 4),
|
|
QSize(hStep, labelsRect.height()-4)), Qt::AlignHCenter | Qt::AlignTop, label);
|
|
painter->translate(hStep, 0);
|
|
}
|
|
}
|
|
}
|
|
painter->restore();
|
|
}
|
|
|
|
void AbstractSeriesChart::paintVerticalLabels(QPainter *painter, QRectF labelsRect)
|
|
{
|
|
if (valuesCount() == 0) return;
|
|
|
|
painter->save();
|
|
painter->setFont(adaptLabelsFont(labelsRect.adjusted(0, 0, -hPadding(m_chartItem->rect()), 0),
|
|
painter->font()));
|
|
qreal vStep = (labelsRect.height() / valuesCount());
|
|
int curLabel = 0;
|
|
|
|
painter->translate(labelsRect.topLeft());
|
|
if (!m_chartItem->labels().isEmpty()){
|
|
foreach (QString label, m_chartItem->labels()) {
|
|
painter->drawText(QRectF(QPoint(0,vStep*curLabel),
|
|
QSize(labelsRect.width()-hPadding(m_chartItem->rect()),vStep)),
|
|
Qt::AlignVCenter | Qt::AlignRight | Qt::TextWordWrap,label);
|
|
|
|
curLabel++;
|
|
}
|
|
}
|
|
painter->restore();
|
|
}
|
|
|
|
void AbstractSeriesChart::paintHorizontalGrid(QPainter *painter, QRectF gridRect)
|
|
{
|
|
painter->save();
|
|
int delta = int(maxValue() - minValue());
|
|
delta = genNextValue(delta);
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing,false);
|
|
qreal hStep = (gridRect.width() - painter->fontMetrics().boundingRect(QString::number(maxValue())).width()) / 4;
|
|
|
|
painter->setFont(adaptValuesFont(hStep-4, painter->font()));
|
|
|
|
for (int i=0;i<5;i++){
|
|
painter->drawText(QRectF(gridRect.left() + 4 + hStep * i, gridRect.bottom() - painter->fontMetrics().height(),
|
|
hStep, painter->fontMetrics().height()),
|
|
QString::number(minValue() + i * delta / 4));
|
|
painter->drawLine( gridRect.left()+hStep*i, gridRect.bottom(),
|
|
gridRect.left()+hStep*i, gridRect.top());
|
|
|
|
}
|
|
painter->restore();
|
|
}
|
|
|
|
void AbstractSeriesChart::paintVerticalGrid(QPainter *painter, QRectF gridRect)
|
|
{
|
|
int delta = int(maxValue()-minValue());
|
|
delta = genNextValue(delta);
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing,false);
|
|
qreal vStep = gridRect.height() / 4;
|
|
|
|
const qreal valuesHMargin = this->valuesHMargin(painter);
|
|
|
|
for (int i=0;i<5;i++){
|
|
painter->drawText(QRectF(gridRect.bottomLeft()-QPointF(0,vStep*i+painter->fontMetrics().height()),
|
|
QSizeF(valuesHMargin,painter->fontMetrics().height())),
|
|
QString::number(minValue()+i*delta/4));
|
|
painter->drawLine(gridRect.bottomLeft()-QPointF(-valuesHMargin,vStep*i),
|
|
gridRect.bottomRight()-QPointF(0,vStep*i));
|
|
}
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing,true);
|
|
}
|
|
|
|
void AbstractSeriesChart::drawSegment(QPainter *painter, QPoint startPoint, QPoint endPoint, QColor color)
|
|
{
|
|
int radius = 4;
|
|
QPen pen(color);
|
|
pen.setWidth(radius);
|
|
painter->setPen(pen);
|
|
painter->drawLine(startPoint, endPoint);
|
|
QRect startPointRect(startPoint,startPoint);
|
|
QRect endPointRect(endPoint,endPoint);
|
|
painter->setBrush(color);
|
|
painter->drawEllipse(startPointRect.adjusted(radius,radius,-radius,-radius));
|
|
painter->drawEllipse(endPointRect.adjusted(radius,radius,-radius,-radius));
|
|
}
|
|
|
|
qreal AbstractSeriesChart::valuesHMargin(QPainter *painter)
|
|
{
|
|
int delta = int(maxValue()-minValue());
|
|
delta = genNextValue(delta);
|
|
return painter->fontMetrics().boundingRect(QString::number(delta)).width()+4;
|
|
}
|
|
|
|
qreal AbstractSeriesChart::valuesVMargin(QPainter *painter)
|
|
{
|
|
return painter->fontMetrics().height();
|
|
}
|
|
|
|
QFont AbstractSeriesChart::adaptLabelsFont(QRectF rect, QFont font)
|
|
{
|
|
QString maxWord;
|
|
QFontMetrics fm(font);
|
|
|
|
foreach(QString label, m_chartItem->labels()){
|
|
#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
|
|
foreach (QString currentWord, label.split(QRegExp("\\W+"))){
|
|
#else
|
|
foreach (QString currentWord, label.split(QRegularExpression("\\W+"))){
|
|
#endif
|
|
if (fm.boundingRect(maxWord).width() < fm.boundingRect(currentWord).width()) maxWord = currentWord;
|
|
}
|
|
}
|
|
|
|
qreal curWidth = fm.boundingRect(maxWord).width();
|
|
QFont tmpFont = font;
|
|
while (curWidth>rect.width() && tmpFont.pixelSize() > 1){
|
|
tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
|
|
QFontMetricsF tmpFM(tmpFont);
|
|
curWidth = tmpFM.boundingRect(maxWord).width();
|
|
}
|
|
return tmpFont;
|
|
}
|
|
|
|
QFont AbstractSeriesChart::adaptValuesFont(qreal width, QFont font)
|
|
{
|
|
QString strValue = QString::number(maxValue());
|
|
QFont tmpFont = font;
|
|
QScopedPointer<QFontMetricsF> fm(new QFontMetricsF(tmpFont));
|
|
qreal curWidth = fm->boundingRect(strValue).width();
|
|
while (curWidth > width && tmpFont.pixelSize() > 1){
|
|
tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
|
|
fm.reset(new QFontMetricsF(tmpFont));
|
|
curWidth = fm->boundingRect(strValue).width();
|
|
}
|
|
return tmpFont;
|
|
}
|
|
|
|
void AbstractBarChart::paintChartLegend(QPainter *painter, QRectF legendRect)
|
|
{
|
|
prepareLegendToPaint(legendRect, painter);
|
|
int indicatorSize = painter->fontMetrics().height()/2;
|
|
painter->setPen(Qt::black);
|
|
painter->setRenderHint(QPainter::Antialiasing,false);
|
|
if (m_chartItem->drawLegendBorder())
|
|
painter->drawRect(legendRect);
|
|
painter->setRenderHint(QPainter::Antialiasing,true);
|
|
QRectF indicatorsRect = legendRect.adjusted(painter->fontMetrics().height()/2,painter->fontMetrics().height()/2,0,0);
|
|
|
|
if (!m_chartItem->series().isEmpty()){
|
|
qreal cw = 0;
|
|
foreach(SeriesItem* series, m_chartItem->series()){
|
|
QString label = series->name();
|
|
painter->drawText(indicatorsRect.adjusted(indicatorSize+indicatorSize/2,cw,0,0),label);
|
|
painter->setBrush(series->color());
|
|
painter->drawEllipse(
|
|
indicatorsRect.adjusted(
|
|
0,
|
|
cw+indicatorSize/2,
|
|
-(indicatorsRect.width()-indicatorSize),
|
|
-(indicatorsRect.height()-(cw+indicatorSize+indicatorSize/2))
|
|
)
|
|
);
|
|
cw += painter->fontMetrics().height();
|
|
}
|
|
} else if (m_chartItem->itemMode() == DesignMode){
|
|
qreal cw = 0;
|
|
for (int i=0;i<m_designLabels.size();++i){
|
|
QString label = m_designLabels.at(i);
|
|
painter->drawText(indicatorsRect.adjusted(indicatorSize+indicatorSize/2,cw,0,0),label);
|
|
painter->setBrush(color_map[i]);
|
|
painter->drawEllipse(
|
|
indicatorsRect.adjusted(
|
|
0,
|
|
cw+indicatorSize/2,
|
|
-(indicatorsRect.width()-indicatorSize),
|
|
-(indicatorsRect.height()-(cw+indicatorSize+indicatorSize/2))
|
|
)
|
|
);
|
|
cw += painter->fontMetrics().height();
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
QRectF AbstractBarChart::verticalLabelsRect(QPainter *painter, QRectF labelsRect)
|
|
{
|
|
qreal maxWidth = 0;
|
|
|
|
foreach (QString label, m_chartItem->labels()) {
|
|
if (painter->fontMetrics().boundingRect(label).width()>maxWidth)
|
|
maxWidth = painter->fontMetrics().boundingRect(label).width();
|
|
}
|
|
|
|
if (maxWidth + hPadding(m_chartItem->rect()) * 2 < labelsRect.width())
|
|
return labelsRect;
|
|
else
|
|
return labelsRect.adjusted(0, 0, -(labelsRect.width() - (maxWidth + hPadding(m_chartItem->rect()) * 2)), 0);
|
|
}
|
|
|
|
QRectF AbstractBarChart::horizontalLabelsRect(QPainter *painter, QRectF labelsRect)
|
|
{
|
|
qreal maxWidth = 0;
|
|
|
|
foreach (QString label, m_chartItem->labels()) {
|
|
if (painter->fontMetrics().boundingRect(label).width()>maxWidth)
|
|
maxWidth = painter->fontMetrics().boundingRect(label).width();
|
|
}
|
|
|
|
if ((maxWidth + vPadding(m_chartItem->rect()) < labelsRect.height()) || !verticalLabels(painter, labelsRect))
|
|
return labelsRect;
|
|
else
|
|
return labelsRect.adjusted(0, (labelsRect.height() - maxWidth), 0, 0);
|
|
}
|
|
|
|
} // namespace LimeReport
|