areachartitem.cpp
112 lines
| 2.4 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r421 | #include "areachartitem_p.h" | ||
| #include "qareaseries.h" | ||||
| #include "qlineseries.h" | ||||
| #include <QPainter> | ||||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| //TODO: optimize : remove points which are not visible | ||||
|
Michal Klocek
|
r439 | AreaChartItem::AreaChartItem(QAreaSeries* areaSeries,QGraphicsItem *parent):ChartItem(parent), | ||
|
Michal Klocek
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r421 | m_series(areaSeries), | ||
| m_upper(0), | ||||
| m_lower(0) | ||||
| { | ||||
| //m_items.setZValue(ChartPresenter::LineChartZValue); | ||||
|
Michal Klocek
|
r439 | m_upper = new AreaBoundItem(this,m_series->upperSeries()); | ||
|
Michal Klocek
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r421 | if(m_series->lowerSeries()){ | ||
|
Michal Klocek
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r439 | m_lower = new AreaBoundItem(this,m_series->lowerSeries()); | ||
|
Michal Klocek
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r421 | } | ||
| QObject::connect(areaSeries,SIGNAL(updated()),this,SLOT(handleUpdated())); | ||||
| handleUpdated(); | ||||
| } | ||||
| AreaChartItem::~AreaChartItem() | ||||
| { | ||||
| delete m_upper; | ||||
| delete m_lower; | ||||
| }; | ||||
| QRectF AreaChartItem::boundingRect() const | ||||
| { | ||||
| return m_rect; | ||||
| } | ||||
| QPainterPath AreaChartItem::shape() const | ||||
| { | ||||
| return m_path; | ||||
| } | ||||
| void AreaChartItem::setPen(const QPen& pen) | ||||
| { | ||||
| m_pen = pen; | ||||
| } | ||||
| void AreaChartItem::setBrush(const QBrush& brush) | ||||
| { | ||||
| m_brush = brush; | ||||
| } | ||||
| void AreaChartItem::updatePath() | ||||
| { | ||||
| QPainterPath path; | ||||
| path.connectPath(m_upper->shape()); | ||||
| if(m_lower){ | ||||
| path.connectPath(m_lower->shape().toReversed()); | ||||
| } | ||||
| else{ | ||||
| QPointF first = path.pointAtPercent(0); | ||||
| QPointF last = path.pointAtPercent(1); | ||||
| path.lineTo(last.x(),m_clipRect.bottom()); | ||||
| path.lineTo(first.x(),m_clipRect.bottom()); | ||||
| } | ||||
| path.closeSubpath(); | ||||
| prepareGeometryChange(); | ||||
| m_path=path; | ||||
| m_rect=path.boundingRect(); | ||||
| update(); | ||||
| } | ||||
| void AreaChartItem::handleUpdated() | ||||
| { | ||||
| setPen(m_series->pen()); | ||||
| setBrush(m_series->brush()); | ||||
| update(); | ||||
| } | ||||
|
Michal Klocek
|
r439 | void AreaChartItem::handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY) | ||
|
Michal Klocek
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r421 | { | ||
|
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r439 | m_upper->handleDomainChanged(minX,maxX,minY,maxY); | ||
|
Michal Klocek
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r421 | if(m_lower) | ||
|
Michal Klocek
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r439 | m_lower->handleDomainChanged(minX,maxX,minY,maxY); | ||
|
Michal Klocek
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r421 | } | ||
| void AreaChartItem::handleGeometryChanged(const QRectF& rect) | ||||
| { | ||||
| m_clipRect=rect.translated(-rect.topLeft()); | ||||
| setPos(rect.topLeft()); | ||||
| m_upper->handleGeometryChanged(rect); | ||||
| if(m_lower) | ||||
| m_lower->handleGeometryChanged(rect); | ||||
| } | ||||
| //painter | ||||
| void AreaChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||||
| { | ||||
| Q_UNUSED(widget); | ||||
| Q_UNUSED(option); | ||||
| painter->save(); | ||||
| painter->setPen(m_pen); | ||||
| painter->setBrush(m_brush); | ||||
| painter->setClipRect(m_clipRect); | ||||
| painter->drawPath(m_path); | ||||
| painter->restore(); | ||||
| } | ||||
| #include "moc_areachartitem_p.cpp" | ||||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||