mirror of
https://github.com/fralx/LimeReport.git
synced 2024-12-23 16:22:58 +03:00
1317 lines
46 KiB
C++
1317 lines
46 KiB
C++
#include "lrchartitem.h"
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#include "charts/lrgridlineschart.h"
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#include "charts/lrhorizontalbarchart.h"
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#include "charts/lrlineschart.h"
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#include "charts/lrpiechart.h"
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#include "charts/lrverticalbarchart.h"
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#include "lrchartaxiseditor.h"
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#include "lrchartitemeditor.h"
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#include "lrdatadesignintf.h"
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#include "lrdatasourcemanager.h"
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#include "lrdesignelementsfactory.h"
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#include "lrpagedesignintf.h"
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#include "lrreportengine_p.h"
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#include <QPainter>
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#include <QStyleOptionGraphicsItem>
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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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{
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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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} // namespace
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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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;
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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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QString SeriesItem::name() const { return m_name; }
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void SeriesItem::setName(const QString& name) { m_name = name; }
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QString SeriesItem::valuesColumn() const { return m_valuesColumn; }
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void SeriesItem::setValuesColumn(const QString& valuesColumn) { m_valuesColumn = valuesColumn; }
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QString SeriesItem::labelsColumn() const { return m_labelsColumn; }
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void SeriesItem::setLabelsColumn(const QString& labelsColumn) { m_labelsColumn = labelsColumn; }
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QString SeriesItem::xAxisColumn() const { return m_xAxisColumn; }
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void SeriesItem::setXAxisColumn(const QString& xAxisColumn) { m_xAxisColumn = xAxisColumn; }
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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(),
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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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if (!m_xAxisColumn.isEmpty())
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m_data.xAxisValues().append(dataSource->data(m_xAxisColumn).toDouble());
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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]
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: 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 { return m_color; }
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void SeriesItem::setColor(const QColor& color) { m_color = color; }
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SeriesItem::SeriesItemPreferredType SeriesItem::preferredType() const { return m_preferredType; }
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void SeriesItem::setPreferredType(const SeriesItemPreferredType& type) { m_preferredType = type; }
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ChartItem::ChartItem(QObject* owner, QGraphicsItem* parent):
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ItemDesignIntf(xmlTag, owner, parent),
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m_legendBorder(true),
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m_legendAlign(LegendAlignRightCenter),
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m_titleAlign(TitleAlignCenter),
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m_chartType(Pie),
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m_labelsField(""),
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m_isEmpty(true),
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m_showLegend(true),
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m_drawPoints(true),
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m_seriesLineWidth(4),
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m_horizontalAxisOnTop(false),
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m_gridChartLines(AllLines),
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m_legendStyle(LegendPoints)
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{
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m_xAxisData = new AxisData(AxisData::XAxis, this);
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m_xAxisData->setReverseDirection(true);
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m_yAxisData = new AxisData(AxisData::YAxis, this);
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m_labels << "First"
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<< "Second"
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<< "Thrid";
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m_chart = new PieChart(this);
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m_chart->setTitleFont(font());
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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 { return m_titleAlign; }
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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() * 0.5;
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QFont tmpFont = painter->font();
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qreal titleOffset = 0;
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if (!m_title.isEmpty()) {
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QFontMetrics fm(titleFont());
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const qreal titleHeight
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= fm.boundingRect(rect().toRect(), Qt::TextWordWrap, chartTitle()).height()
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+ borderMargin * 2;
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titleOffset = std::min(titleHeight, maxTitleHeight);
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}
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const QRectF titleRect
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= QRectF(borderMargin, borderMargin, rect().width() - borderMargin * 2, titleOffset);
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QRectF legendRect = QRectF(0, 0, 0, 0);
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QRectF diagramRect = rect().adjusted(borderMargin, titleOffset + borderMargin,
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-(borderMargin * 2), -borderMargin);
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if (m_showLegend) {
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legendRect = m_chart->calcChartLegendRect(painter->font(), rect(), false, borderMargin,
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titleOffset);
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switch (legendAlign()) {
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case LegendAlignRightTop:
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case LegendAlignRightBottom:
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case LegendAlignRightCenter:
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diagramRect.adjust(0, 0, -legendRect.width(), 0);
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break;
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case LegendAlignBottomLeft:
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case LegendAlignBottomCenter:
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case LegendAlignBottomRight:
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diagramRect.adjust(0, 0, 0, -(legendRect.height() + borderMargin * 2));
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break;
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}
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}
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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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QObject* ChartItem::xAxisSettings() { return m_xAxisData; }
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void ChartItem::setYAxisSettings(QObject* axis)
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{
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AxisData* data = dynamic_cast<AxisData*>(axis);
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if (data) {
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m_yAxisData->copy(data);
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}
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}
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QObject* ChartItem::yAxisSettings() { return m_yAxisData; }
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void ChartItem::setXAxisSettings(QObject* axis)
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{
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AxisData* data = static_cast<AxisData*>(axis);
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if (data) {
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m_xAxisData->copy(data);
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}
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}
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AxisData* ChartItem::xAxisData() { return m_xAxisData; }
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AxisData* ChartItem::yAxisData() { return m_yAxisData; }
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void ChartItem::showAxisEditorDialog(bool isXAxis)
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{
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showDialog(new ChartAxisEditor(this, page(), isXAxis, settings()));
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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->setXAxisColumn(m_xAxisField);
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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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QWidget* editor = new ChartItemEditor(this, page(), 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 { return pass == FirstPass && m_isEmpty; }
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QSettings* ChartItem::settings()
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{
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PageDesignIntf* page = this->page();
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if (page->settings()) {
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return page->settings();
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}
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if (page->reportEditor()) {
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return page->reportEditor()->settings();
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}
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return 0;
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}
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bool ChartItem::showLegend() const { return m_showLegend; }
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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 { return m_labels; }
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void ChartItem::setLabels(const QList<QString>& labels) { m_labels = labels; }
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QString ChartItem::labelsField() const { return m_labelsField; }
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void ChartItem::setLabelsField(const QString& labelsField) { m_labelsField = labelsField; }
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ChartItem::ChartType ChartItem::chartType() const { return m_chartType; }
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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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QFont oldTitleFont = m_chart->titleFont();
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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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break;
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case GridLines:
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m_chart = new GridLinesChart(this);
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break;
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}
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m_chart->setTitleFont(oldTitleFont);
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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 { return m_datasource; }
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void ChartItem::setDatasource(const QString& datasource) { m_datasource = datasource; }
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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 = transformToSceneFont(titleFont());
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QRect titleBoundingRect
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= QFontMetrics(tmpFont).boundingRect(rect().toRect(), Qt::TextWordWrap, chartTitle());
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while ((titleBoundingRect.height() > titleRect.height()
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|| titleBoundingRect.width() > titleRect.width())
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&& tmpFont.pixelSize() > 1) {
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tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
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titleBoundingRect
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= QFontMetrics(tmpFont).boundingRect(rect().toRect(), Qt::TextWordWrap, chartTitle());
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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 | Qt::TextWordWrap, m_title);
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painter->restore();
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}
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ChartItem::LegendAlign ChartItem::legendAlign() const { return m_legendAlign; }
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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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ChartItem::LegendStyle ChartItem::legendStyle() const { return m_legendStyle; }
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void ChartItem::setLegendStyle(const LegendStyle& legendStyle)
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{
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if (m_legendStyle == legendStyle) {
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return;
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}
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LegendStyle oldValue = m_legendStyle;
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m_legendStyle = legendStyle;
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notify("legendStyle", oldValue, m_legendStyle);
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update();
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}
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bool ChartItem::drawLegendBorder() const { return m_legendBorder; }
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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 { return m_title; }
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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() { return m_series; }
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void ChartItem::setSeries(const QList<SeriesItem*>& series) { m_series = series; }
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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)
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return true;
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}
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return false;
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}
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int ChartItem::seriesLineWidth() const { return m_seriesLineWidth; }
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bool ChartItem::drawPoints() const { return m_drawPoints; }
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void ChartItem::setDrawPoints(bool drawPoints)
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{
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if (m_drawPoints != drawPoints) {
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m_drawPoints = drawPoints;
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notify("drawPoints", !m_drawPoints, m_drawPoints);
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update();
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}
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m_drawPoints = drawPoints;
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}
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void ChartItem::setSeriesLineWidth(int newSeriesLineWidth)
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{
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if (m_seriesLineWidth != newSeriesLineWidth) {
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int oldValue = m_seriesLineWidth;
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m_seriesLineWidth = newSeriesLineWidth;
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notify("seriesLineWidth", oldValue, m_seriesLineWidth);
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update();
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}
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m_seriesLineWidth = newSeriesLineWidth;
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}
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QString ChartItem::xAxisField() const { return m_xAxisField; }
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void ChartItem::setXAxisField(const QString& xAxisField) { m_xAxisField = xAxisField; }
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bool ChartItem::horizontalAxisOnTop() const { return m_horizontalAxisOnTop; }
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void ChartItem::setHorizontalAxisOnTop(bool horizontalAxisOnTop)
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{
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if (m_horizontalAxisOnTop != horizontalAxisOnTop) {
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m_horizontalAxisOnTop = horizontalAxisOnTop;
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notify("horizontalAxisOnTop", !m_horizontalAxisOnTop, m_horizontalAxisOnTop);
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update();
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}
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m_horizontalAxisOnTop = horizontalAxisOnTop;
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}
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ChartItem::GridChartLines ChartItem::gridChartLines() const { return m_gridChartLines; }
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|
|
void ChartItem::setGridChartLines(GridChartLines flags)
|
|
{
|
|
if (m_gridChartLines == flags) {
|
|
return;
|
|
}
|
|
GridChartLines oldValue = m_gridChartLines;
|
|
m_gridChartLines = flags;
|
|
if (isLoading()) {
|
|
return;
|
|
}
|
|
update(rect());
|
|
notify("gridChartLines", QVariant(oldValue), QVariant(flags));
|
|
}
|
|
|
|
void ChartItem::setCharItemFont(QFont value)
|
|
{
|
|
if (font() == value) {
|
|
return;
|
|
}
|
|
QFont oldValue = font();
|
|
setFont(value);
|
|
if (!isLoading())
|
|
update();
|
|
notify("font", oldValue, value);
|
|
}
|
|
|
|
QFont ChartItem::titleFont() const { return m_chart->titleFont(); }
|
|
|
|
void ChartItem::setTitleFont(QFont value)
|
|
{
|
|
if (m_chart->titleFont() == value) {
|
|
return;
|
|
}
|
|
QFont oldValue = value;
|
|
m_chart->setTitleFont(value);
|
|
if (!isLoading())
|
|
update();
|
|
notify("titleFont", oldValue, value);
|
|
}
|
|
|
|
AbstractChart::AbstractChart(ChartItem* chartItem): m_chartItem(chartItem)
|
|
{
|
|
m_designLabels << QObject::tr("First") << QObject::tr("Second") << QObject::tr("Thrid");
|
|
}
|
|
|
|
QRectF AbstractChart::calcChartLegendRect(const QFont& font, const QRectF& parentRect,
|
|
bool takeAllRect, qreal borderMargin, qreal titleOffset)
|
|
{
|
|
const QSizeF legendSize = calcChartLegendSize(font, parentRect.width() * 0.9);
|
|
qreal legendTopMargin = 0;
|
|
qreal legendBottomMargin = 0;
|
|
qreal legendLeftMargin = 0;
|
|
|
|
bool isVertical = true;
|
|
switch (m_chartItem->legendAlign()) {
|
|
case ChartItem::LegendAlignRightTop:
|
|
legendTopMargin = titleOffset + borderMargin;
|
|
legendBottomMargin = parentRect.height() - (legendSize.height() + titleOffset);
|
|
isVertical = true;
|
|
break;
|
|
case ChartItem::LegendAlignRightCenter:
|
|
legendTopMargin
|
|
= titleOffset + (parentRect.height() - titleOffset - legendSize.height()) / 2;
|
|
legendBottomMargin = (parentRect.height() - titleOffset - legendSize.height()) / 2;
|
|
isVertical = true;
|
|
break;
|
|
case ChartItem::LegendAlignRightBottom:
|
|
legendTopMargin = parentRect.height() - (legendSize.height() + titleOffset);
|
|
legendBottomMargin = borderMargin;
|
|
isVertical = true;
|
|
break;
|
|
case ChartItem::LegendAlignBottomLeft:
|
|
legendLeftMargin = QFontMetrics(font).height() / 2;
|
|
isVertical = false;
|
|
break;
|
|
case ChartItem::LegendAlignBottomCenter:
|
|
legendLeftMargin = (parentRect.width() - legendSize.width()) / 2;
|
|
isVertical = false;
|
|
break;
|
|
case ChartItem::LegendAlignBottomRight:
|
|
legendLeftMargin
|
|
= parentRect.width() - legendSize.width() - QFontMetrics(font).height() / 2;
|
|
isVertical = false;
|
|
break;
|
|
}
|
|
|
|
if (isVertical) {
|
|
qreal rightOffset = !takeAllRect
|
|
? ((legendSize.width() > parentRect.width() / 2 - borderMargin)
|
|
? (parentRect.width() / 2)
|
|
: (parentRect.width() - legendSize.width()))
|
|
: 0;
|
|
return parentRect.adjusted(
|
|
rightOffset,
|
|
(legendSize.height() > (parentRect.height() - titleOffset)) ? (titleOffset)
|
|
: (legendTopMargin),
|
|
-borderMargin,
|
|
(legendSize.height() > (parentRect.height() - titleOffset)) ? (0)
|
|
: (-legendBottomMargin));
|
|
} else {
|
|
const qreal verticalOffset = borderMargin * 2;
|
|
return parentRect.adjusted(
|
|
legendLeftMargin, (parentRect.height()) - (legendSize.height() + verticalOffset),
|
|
-(parentRect.width() - (legendSize.width() + legendLeftMargin)), -verticalOffset);
|
|
}
|
|
}
|
|
|
|
QFont AbstractChart::titleFont() { return m_titleFont; }
|
|
|
|
void AbstractChart::setTitleFont(const QFont& value) { m_titleFont = value; }
|
|
|
|
void AbstractChart::prepareLegendToPaint(QRectF& legendRect, QPainter* painter)
|
|
{
|
|
QFont tmpFont = painter->font();
|
|
switch (m_chartItem->legendAlign()) {
|
|
case ChartItem::LegendAlignBottomLeft:
|
|
case ChartItem::LegendAlignBottomCenter:
|
|
case ChartItem::LegendAlignBottomRight: {
|
|
const qreal maxWidth = legendRect.width() * 0.95;
|
|
qreal legendWidth
|
|
= std::accumulate(m_legendColumnWidths.cbegin(), m_legendColumnWidths.cend(), 0.0);
|
|
if (legendWidth < maxWidth) {
|
|
return;
|
|
}
|
|
while ((legendWidth > maxWidth) && tmpFont.pixelSize() > 1) {
|
|
tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
|
|
calcChartLegendSize(tmpFont, legendRect.width());
|
|
legendWidth
|
|
= std::accumulate(m_legendColumnWidths.cbegin(), m_legendColumnWidths.cend(), 0.0);
|
|
}
|
|
painter->setFont(tmpFont);
|
|
break;
|
|
}
|
|
case ChartItem::LegendAlignRightTop:
|
|
case ChartItem::LegendAlignRightCenter:
|
|
case ChartItem::LegendAlignRightBottom:
|
|
QSizeF legendSize = calcChartLegendSize(tmpFont, legendRect.width());
|
|
if ((legendSize.height() <= legendRect.height()
|
|
&& legendSize.width() <= legendRect.width())) {
|
|
return;
|
|
}
|
|
while (
|
|
(legendSize.height() > legendRect.height() || legendSize.width() > legendRect.width())
|
|
&& tmpFont.pixelSize() > 1) {
|
|
tmpFont.setPixelSize(tmpFont.pixelSize() - 1);
|
|
legendSize = calcChartLegendSize(tmpFont, legendRect.width());
|
|
}
|
|
painter->setFont(tmpFont);
|
|
legendRect = calcChartLegendRect(tmpFont, legendRect, true, 0, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
AbstractSeriesChart::AbstractSeriesChart(ChartItem* chartItem): AbstractChart(chartItem)
|
|
{
|
|
m_designValues[0] = 10;
|
|
m_designValues[1] = 35;
|
|
m_designValues[2] = 15;
|
|
m_designValues[3] = 5;
|
|
m_designValues[4] = 20;
|
|
m_designValues[5] = 10;
|
|
m_designValues[6] = 40;
|
|
m_designValues[7] = 20;
|
|
m_designValues[8] = 5;
|
|
}
|
|
|
|
qreal AbstractSeriesChart::maxValue() { return m_chartItem->yAxisData()->maxValue(); }
|
|
|
|
qreal AbstractSeriesChart::minValue() { return m_chartItem->yAxisData()->minValue(); }
|
|
|
|
AxisData& AbstractSeriesChart::xAxisData() const { return *m_chartItem->xAxisData(); }
|
|
|
|
AxisData& AbstractSeriesChart::yAxisData() const { return *m_chartItem->yAxisData(); }
|
|
|
|
void AbstractSeriesChart::updateMinAndMaxValues()
|
|
{
|
|
if (m_chartItem->itemMode() == DesignMode) {
|
|
m_chartItem->xAxisData()->updateForDesignMode();
|
|
m_chartItem->yAxisData()->updateForDesignMode();
|
|
return;
|
|
}
|
|
|
|
qreal maxYValue = 0;
|
|
qreal minYValue = std::numeric_limits<qreal>::max();
|
|
qreal maxXValue = 0;
|
|
qreal minXValue = std::numeric_limits<qreal>::max();
|
|
|
|
for (SeriesItem* series : m_chartItem->series()) {
|
|
for (qreal value : series->data()->values()) {
|
|
minYValue = std::min(minYValue, value);
|
|
maxYValue = std::max(maxYValue, value);
|
|
}
|
|
if (series->data()->xAxisValues().isEmpty()) {
|
|
// Grid plot starts from 0 on x axis so x range must be decresed by 1
|
|
const bool startingFromZero = m_chartItem->chartType() == ChartItem::GridLines;
|
|
const qreal valuesCount = this->valuesCount() - (startingFromZero ? 1 : 0);
|
|
minXValue = std::min(0.0, minXValue);
|
|
maxXValue = std::max(valuesCount, maxXValue);
|
|
} else {
|
|
for (qreal value : series->data()->xAxisValues()) {
|
|
minXValue = std::min(value, minXValue);
|
|
maxXValue = std::max(value, maxXValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
m_chartItem->xAxisData()->update(minXValue, maxXValue);
|
|
m_chartItem->yAxisData()->update(minYValue, maxYValue);
|
|
}
|
|
|
|
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, const qreal maxWidth)
|
|
{
|
|
QFontMetrics fm(font);
|
|
|
|
switch (m_chartItem->legendAlign()) {
|
|
case ChartItem::LegendAlignBottomLeft:
|
|
case ChartItem::LegendAlignBottomCenter:
|
|
case ChartItem::LegendAlignBottomRight: {
|
|
const qreal seriesCount = m_chartItem->series().isEmpty() ? m_designLabels.size()
|
|
: m_chartItem->series().size();
|
|
const qreal indicatorWidth = fm.height() * 1.5;
|
|
m_legendColumnWidths.clear();
|
|
while (!calculateLegendColumnWidths(indicatorWidth, maxWidth, fm)) {
|
|
// Nothing to do here
|
|
}
|
|
if (m_legendColumnWidths.isEmpty()) {
|
|
m_legendColumnWidths.append(0);
|
|
}
|
|
const qreal columnCount = m_legendColumnWidths.size();
|
|
const qreal rowCount = std::ceil(seriesCount / columnCount);
|
|
QSizeF legendSize(
|
|
std::accumulate(m_legendColumnWidths.cbegin(), m_legendColumnWidths.cend(), 0.0)
|
|
+ fm.height() / 2,
|
|
(rowCount + 1) * fm.height());
|
|
if (legendSize.width() > maxWidth) {
|
|
legendSize.setWidth(maxWidth);
|
|
}
|
|
return legendSize;
|
|
}
|
|
default: {
|
|
qreal cw = 0;
|
|
qreal maxWidth = 0;
|
|
|
|
if (m_chartItem->series().isEmpty()) {
|
|
foreach (QString label, m_designLabels) {
|
|
cw += fm.height();
|
|
if (maxWidth < fm.boundingRect(label).width())
|
|
maxWidth = fm.boundingRect(label).width() + 10;
|
|
}
|
|
} else {
|
|
foreach (SeriesItem* series, m_chartItem->series()) {
|
|
cw += fm.height();
|
|
if (maxWidth < fm.boundingRect(series->name()).width())
|
|
maxWidth = fm.boundingRect(series->name()).width() + 10;
|
|
}
|
|
}
|
|
cw += fm.height();
|
|
return QSizeF(maxWidth + fm.height() * 2, cw);
|
|
}
|
|
}
|
|
return QSizeF();
|
|
}
|
|
|
|
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();
|
|
|
|
const AxisData& yAxisData = this->yAxisData();
|
|
|
|
const int segmentCount = yAxisData.segmentCount();
|
|
const int lineCount = segmentCount + 1;
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing, false);
|
|
qreal hStep = (gridRect.width()
|
|
- painter->fontMetrics().boundingRect(QString::number(maxValue())).width())
|
|
/ segmentCount;
|
|
|
|
painter->setFont(adaptFont(hStep - 4, painter->font(), yAxisData));
|
|
|
|
QPointF textPos;
|
|
if (m_chartItem->horizontalAxisOnTop()) {
|
|
textPos.setY(gridRect.top());
|
|
} else {
|
|
textPos.setY(gridRect.bottom() - painter->fontMetrics().height());
|
|
}
|
|
for (int i = 0; i < lineCount; i++) {
|
|
const qreal x = gridRect.left() + hStep * i;
|
|
textPos.setX(x + 4);
|
|
painter->drawText(QRectF(textPos, QSizeF(hStep, painter->fontMetrics().height())),
|
|
axisLabel(i, yAxisData));
|
|
painter->drawLine(x, gridRect.bottom(), x, gridRect.top());
|
|
}
|
|
painter->restore();
|
|
}
|
|
|
|
void AbstractSeriesChart::paintVerticalGrid(QPainter* painter, QRectF gridRect)
|
|
{
|
|
const AxisData& yAxisData = this->yAxisData();
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing, false);
|
|
|
|
const int segmentCount = yAxisData.segmentCount();
|
|
const int lineCount = segmentCount + 1;
|
|
qreal vStep = gridRect.height() / segmentCount;
|
|
|
|
const qreal valuesHMargin = this->valuesHMargin(painter);
|
|
const int fontHeight = painter->fontMetrics().height();
|
|
const int halfFontHeight = fontHeight / 2;
|
|
const qreal textPositionOffset = valuesHMargin * 0.2;
|
|
|
|
const QTextOption verticalTextOption(Qt::AlignRight);
|
|
for (int i = 0; i < lineCount; i++) {
|
|
const qreal y = vStep * i;
|
|
painter->drawText(
|
|
QRectF(gridRect.bottomLeft() - QPointF(textPositionOffset, y + halfFontHeight),
|
|
QSizeF(valuesHMargin, fontHeight)),
|
|
axisLabel(i, yAxisData), verticalTextOption);
|
|
painter->drawLine(gridRect.bottomLeft() - QPointF(-valuesHMargin, y),
|
|
gridRect.bottomRight() - QPointF(0, y));
|
|
}
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing, true);
|
|
}
|
|
|
|
void AbstractSeriesChart::paintGrid(QPainter* painter, QRectF gridRect)
|
|
{
|
|
painter->save();
|
|
|
|
const AxisData& yAxisData = this->yAxisData();
|
|
AxisData& xAxisData = this->xAxisData();
|
|
|
|
painter->setRenderHint(QPainter::Antialiasing, false);
|
|
|
|
const int xAxisSegmentCount = xAxisData.segmentCount();
|
|
const int xAxisLineCount = xAxisSegmentCount + 1;
|
|
const int yAxisSegmentCount = yAxisData.segmentCount();
|
|
const int yAxisLineCount = yAxisSegmentCount + 1;
|
|
|
|
const int fontHeight = painter->fontMetrics().height();
|
|
const int halfFontHeight = fontHeight / 2;
|
|
const QSizeF gridOffset = QSizeF(hPadding(gridRect), vPadding(gridRect));
|
|
const qreal valuesHMargin = this->valuesHMargin(painter);
|
|
const qreal vStep = gridRect.height() / yAxisSegmentCount;
|
|
const qreal hStep = (gridRect.width() - valuesHMargin - gridOffset.width()) / xAxisSegmentCount;
|
|
const qreal textPositionHOffset = valuesHMargin * 0.1;
|
|
|
|
// Vertical axis lines
|
|
const QTextOption verticalTextOption(Qt::AlignRight);
|
|
for (int i = 0; i < yAxisLineCount; i++) {
|
|
const qreal y = vStep * i;
|
|
const bool drawFullLine = m_chartItem->gridChartLines() & ChartItem::HorizontalLine
|
|
|| i == 0 || i == xAxisSegmentCount;
|
|
painter->drawText(
|
|
QRectF(gridRect.bottomLeft() - QPointF(textPositionHOffset, y + halfFontHeight),
|
|
QSizeF(valuesHMargin, fontHeight)),
|
|
axisLabel(i, yAxisData), verticalTextOption);
|
|
|
|
QPointF lineEndPos = gridRect.bottomRight() - QPointF(0, y);
|
|
if (!drawFullLine) {
|
|
lineEndPos.setX(gridRect.left() + valuesHMargin + gridOffset.width());
|
|
}
|
|
painter->drawLine(gridRect.bottomLeft() - QPointF(-valuesHMargin, y), lineEndPos);
|
|
}
|
|
|
|
// Horizontal axis lines
|
|
for (int i = 0; i < xAxisLineCount; i++) {
|
|
const qreal x = gridRect.left() + hStep * i + valuesHMargin + gridOffset.width();
|
|
const bool drawFullLine = m_chartItem->gridChartLines() & ChartItem::VerticalLine || i == 0
|
|
|| i == xAxisSegmentCount;
|
|
const QString text = axisLabel(i, xAxisData);
|
|
|
|
if (m_chartItem->horizontalAxisOnTop()) {
|
|
painter->drawLine(x, gridRect.top() - gridOffset.height(), x,
|
|
(drawFullLine ? gridRect.bottom() : gridRect.top()));
|
|
painter->drawText(QRectF(x - painter->fontMetrics().boundingRect(text).width() / 2,
|
|
gridRect.top() - (fontHeight + gridOffset.height()), hStep,
|
|
fontHeight),
|
|
text);
|
|
} else {
|
|
painter->drawLine(x, gridRect.bottom() + gridOffset.height(), x,
|
|
(drawFullLine ? gridRect.top() : gridRect.bottom()));
|
|
painter->drawText(QRectF(x - painter->fontMetrics().boundingRect(text).width() / 2,
|
|
gridRect.bottom() + halfFontHeight * 0 + gridOffset.height(),
|
|
hStep, fontHeight),
|
|
text);
|
|
}
|
|
}
|
|
painter->restore();
|
|
}
|
|
|
|
void AbstractSeriesChart::drawSegment(QPainter* painter, QPoint startPoint, QPoint endPoint,
|
|
QColor color)
|
|
{
|
|
int radius = m_chartItem->seriesLineWidth();
|
|
QPen pen(color);
|
|
pen.setWidth(radius);
|
|
painter->setPen(pen);
|
|
painter->drawLine(startPoint, endPoint);
|
|
if (!m_chartItem->drawPoints()) {
|
|
return;
|
|
}
|
|
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)
|
|
{
|
|
qreal max = 0;
|
|
const AxisData& yAxisData = this->yAxisData();
|
|
const int offset = 4;
|
|
const int yAxisLineCount = yAxisData.segmentCount() + 1;
|
|
|
|
for (int i = 0; i < yAxisLineCount; i++) {
|
|
const QString label = axisLabel(i, yAxisData);
|
|
max = std::max(max, (qreal)painter->fontMetrics().boundingRect(label).width() + offset);
|
|
}
|
|
return max;
|
|
}
|
|
|
|
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::adaptFont(qreal width, QFont font, const AxisData& axisData)
|
|
{
|
|
QFont tmpFont = font;
|
|
const int axisLineCount = axisData.segmentCount() + 1;
|
|
QScopedPointer<QFontMetricsF> fm(new QFontMetricsF(tmpFont));
|
|
for (int i = 0; i < axisLineCount; i++) {
|
|
QString strValue = axisLabel(i, axisData);
|
|
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;
|
|
}
|
|
|
|
QString AbstractSeriesChart::axisLabel(int i, const AxisData& axisData)
|
|
{
|
|
const qreal min = axisData.rangeMin();
|
|
const qreal step = axisData.step();
|
|
qreal value = 0;
|
|
if (axisData.type() == AxisData::YAxis && axisData.reverseDirection() && min >= 0) {
|
|
value = min + (axisData.segmentCount() - i) * step;
|
|
} else {
|
|
value = min + i * step;
|
|
}
|
|
if (std::floor(step) == step) {
|
|
return QString::number(value);
|
|
}
|
|
// For float round numbers to small precision
|
|
return QString::number(round(value * 100.0) / 100.0);
|
|
}
|
|
|
|
bool AbstractSeriesChart::calculateLegendColumnWidths(qreal indicatorWidth, qreal maxWidth,
|
|
const QFontMetrics& fm)
|
|
{
|
|
// This method is called in the loop, because to handle case when we get
|
|
// 3 small series names in first row and then in second row small name and long name.
|
|
// In this case we need to set maximum column count to 2 and iterate from the start to
|
|
// recalculate all the sizes
|
|
qreal currentRowWidth = 0;
|
|
int currentColumn = 0;
|
|
// During first iteration it is updated when moving to second row
|
|
// After first iteration some column width are already calculated and are set as max,
|
|
// because all rows need to have same column count (except last one)
|
|
int maxColumnCount = m_legendColumnWidths.size();
|
|
if (m_chartItem->series().isEmpty()) {
|
|
for (int i = 0; i < m_designLabels.size(); ++i) {
|
|
const qreal itemWidth
|
|
= (qreal)(fm.boundingRect(m_designLabels[i]).width()) + indicatorWidth;
|
|
if (!calculateLegendSingleColumnWidth(currentRowWidth, currentColumn, maxColumnCount,
|
|
itemWidth, maxWidth)) {
|
|
return false;
|
|
}
|
|
}
|
|
} else {
|
|
for (int i = 0; i < m_chartItem->series().size(); ++i) {
|
|
SeriesItem* series = m_chartItem->series().at(i);
|
|
const qreal itemWidth
|
|
= (qreal)(fm.boundingRect(series->name()).width()) + indicatorWidth;
|
|
if (!calculateLegendSingleColumnWidth(currentRowWidth, currentColumn, maxColumnCount,
|
|
itemWidth, maxWidth)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool AbstractSeriesChart::calculateLegendSingleColumnWidth(qreal& currentRowWidth,
|
|
int& currentColumn, int& maxColumnCount,
|
|
const qreal itemWidth,
|
|
const qreal maxRowWidth)
|
|
{
|
|
const bool maxColumnCountDefined = maxColumnCount > 0;
|
|
// Check if there is enough space for current item in the row
|
|
const bool isEnoughSpaceInRowForItem = currentRowWidth + itemWidth > maxRowWidth;
|
|
// Check if it is last column already
|
|
const bool lastColumnReached = (maxColumnCountDefined && currentColumn >= maxColumnCount);
|
|
if (isEnoughSpaceInRowForItem || lastColumnReached) {
|
|
// Move to next row
|
|
currentColumn = 0;
|
|
// Set column count when moving to second row (next rows cannot have more columns)
|
|
if (!maxColumnCountDefined) {
|
|
maxColumnCount = currentColumn + 1;
|
|
}
|
|
currentRowWidth = itemWidth;
|
|
} else {
|
|
// Add next column in the row
|
|
currentRowWidth += itemWidth;
|
|
}
|
|
|
|
// Add new column or update already existing column width
|
|
if (currentColumn >= m_legendColumnWidths.size()) {
|
|
// Append new column
|
|
m_legendColumnWidths.append(itemWidth);
|
|
} else if (m_legendColumnWidths.at(currentColumn) < itemWidth) {
|
|
// Update size if item in column is bigger than items in same column in previous rows
|
|
m_legendColumnWidths[currentColumn] = itemWidth;
|
|
// After any updating column size we must recheck if all columns fit in the max row
|
|
// width
|
|
qreal rowWidth = itemWidth;
|
|
for (int c = 1; c < m_legendColumnWidths.size(); c++) {
|
|
rowWidth += m_legendColumnWidths.at(c);
|
|
// When column widths exceed max row width remove columns at the end
|
|
if (rowWidth > maxRowWidth) {
|
|
m_legendColumnWidths.remove(c, m_legendColumnWidths.size() - c);
|
|
break;
|
|
}
|
|
}
|
|
// Return back and re-iterate from start to make sure everything fits
|
|
return false;
|
|
}
|
|
++currentColumn;
|
|
return true;
|
|
}
|
|
|
|
QVector<qreal> AbstractChart::legendColumnWidths() const { return m_legendColumnWidths; }
|
|
|
|
void AbstractBarChart::paintChartLegend(QPainter* painter, QRectF legendRect)
|
|
{
|
|
prepareLegendToPaint(legendRect, painter);
|
|
painter->setPen(Qt::black);
|
|
painter->setRenderHint(QPainter::Antialiasing, false);
|
|
if (m_chartItem->drawLegendBorder())
|
|
painter->drawRect(legendRect);
|
|
painter->setRenderHint(QPainter::Antialiasing, true);
|
|
|
|
const qreal halfFontSize = painter->fontMetrics().height() / 2;
|
|
int indicatorSize = halfFontSize;
|
|
const QRectF indicatorsRect = legendRect.adjusted(halfFontSize, halfFontSize, 0, 0);
|
|
|
|
bool isHorizontal = false;
|
|
switch (m_chartItem->legendAlign()) {
|
|
case ChartItem::LegendAlignBottomLeft:
|
|
case ChartItem::LegendAlignBottomCenter:
|
|
case ChartItem::LegendAlignBottomRight:
|
|
isHorizontal = true;
|
|
break;
|
|
default:
|
|
isHorizontal = false;
|
|
break;
|
|
}
|
|
|
|
if (!m_chartItem->series().isEmpty()) {
|
|
for (int i = 0; i < m_chartItem->series().size(); ++i) {
|
|
SeriesItem* series = m_chartItem->series().at(i);
|
|
if (isHorizontal) {
|
|
drawHorizontalLegendItem(painter, i, series->name(), indicatorSize, indicatorsRect,
|
|
series->color());
|
|
} else {
|
|
drawVerticalLegendItem(painter, i, series->name(), indicatorSize, indicatorsRect,
|
|
series->color());
|
|
}
|
|
}
|
|
} else if (m_chartItem->itemMode() == DesignMode) {
|
|
for (int i = 0; i < m_designLabels.size(); ++i) {
|
|
if (isHorizontal) {
|
|
drawHorizontalLegendItem(painter, i, m_designLabels.at(i), indicatorSize,
|
|
indicatorsRect, color_map[i]);
|
|
} else {
|
|
drawVerticalLegendItem(painter, i, m_designLabels.at(i), indicatorSize,
|
|
indicatorsRect, color_map[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void AbstractBarChart::drawVerticalLegendItem(QPainter* painter, int i, const QString& text,
|
|
int indicatorSize, const QRectF& indicatorsRect,
|
|
const QColor& indicatorColor)
|
|
{
|
|
const qreal y = i * painter->fontMetrics().height();
|
|
painter->drawText(indicatorsRect.adjusted(indicatorSize + indicatorSize * 1.5, y, 0, 0), text);
|
|
switch (m_chartItem->legendStyle()) {
|
|
case ChartItem::LegendPoints: {
|
|
painter->setBrush(indicatorColor);
|
|
painter->drawEllipse(indicatorsRect.adjusted(
|
|
0, y + indicatorSize / 2, -(indicatorsRect.width() - indicatorSize),
|
|
-(indicatorsRect.height() - (y + indicatorSize + indicatorSize / 2))));
|
|
break;
|
|
}
|
|
case ChartItem::LegendLines: {
|
|
const QPen tmpPen = painter->pen();
|
|
QPen indicatorPen(indicatorColor);
|
|
indicatorPen.setWidth(4);
|
|
painter->setPen(indicatorPen);
|
|
const QPointF linePos = QPointF(
|
|
indicatorsRect.left(), indicatorsRect.top() + y + painter->fontMetrics().height() / 2);
|
|
painter->drawLine(linePos, linePos + QPointF(indicatorSize, 0));
|
|
painter->setPen(tmpPen);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void AbstractBarChart::drawHorizontalLegendItem(QPainter* painter, int i, const QString& text,
|
|
int indicatorSize, const QRectF& indicatorsRect,
|
|
const QColor& indicatorColor)
|
|
{
|
|
const QVector<qreal>& columnWidths = legendColumnWidths();
|
|
if (columnWidths.isEmpty())
|
|
return;
|
|
const int column = i % columnWidths.size();
|
|
const int row = std::floor(i / columnWidths.size());
|
|
const qreal halfTextSize = painter->fontMetrics().height() / 2;
|
|
|
|
const qreal x = indicatorsRect.x()
|
|
+ std::accumulate(columnWidths.cbegin(), columnWidths.cbegin() + column, 0.0);
|
|
const qreal y = indicatorsRect.y() + (row + 1) * painter->fontMetrics().height();
|
|
painter->drawText(QPointF(x + indicatorSize * 1.5, y), text);
|
|
switch (m_chartItem->legendStyle()) {
|
|
case ChartItem::LegendPoints: {
|
|
painter->setBrush(indicatorColor);
|
|
painter->drawEllipse(x, y - halfTextSize, indicatorSize, indicatorSize);
|
|
break;
|
|
}
|
|
case ChartItem::LegendLines: {
|
|
const QPen tmpPen = painter->pen();
|
|
QPen indicatorPen(indicatorColor);
|
|
indicatorPen.setWidth(4);
|
|
painter->setPen(indicatorPen);
|
|
painter->drawLine(x, y - halfTextSize * 0.7, x + indicatorSize, y - halfTextSize * 0.7);
|
|
painter->setPen(tmpPen);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace LimeReport
|