axisitem.cpp
318 lines
| 7.5 KiB
| text/x-c
|
CppLexer
/ src / axisitem.cpp
Michal Klocek
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r67 | #include "axisitem_p.h" | ||
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r140 | #include "qchartaxis.h" | ||
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r67 | #include <QPainter> | ||
| #include <QDebug> | ||||
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r176 | static int label_padding = 5; | ||
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r85 | |||
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r67 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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r176 | AxisItem::AxisItem(AxisType type,QGraphicsItem* parent) : | ||
| ChartItem(parent), | ||||
| m_ticks(4), | ||||
| m_type(type), | ||||
| m_labelsAngle(0), | ||||
| m_shadesEnabled(true), | ||||
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r184 | m_grid(parent), | ||
| m_shades(parent), | ||||
| m_labels(parent) | ||||
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r67 | { | ||
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r145 | //initial initialization | ||
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r184 | m_shades.setZValue(0); | ||
| m_grid.setZValue(2); | ||||
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r176 | createItems(); | ||
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r67 | } | ||
| AxisItem::~AxisItem() | ||||
| { | ||||
| } | ||||
| QRectF AxisItem::boundingRect() const | ||||
| { | ||||
| return m_rect; | ||||
| } | ||||
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r176 | void AxisItem::createItems() | ||
| { | ||||
| for (int i = 0; i <= m_ticks; ++i) { | ||||
| m_grid.addToGroup(new QGraphicsLineItem(this)); | ||||
| m_labels.addToGroup(new QGraphicsSimpleTextItem(this)); | ||||
| if(i%2) m_shades.addToGroup(new QGraphicsRectItem(this)); | ||||
| } | ||||
| } | ||||
| void AxisItem::clear() | ||||
| { | ||||
| foreach(QGraphicsItem* item , m_shades.childItems()) { | ||||
| delete item; | ||||
| } | ||||
| foreach(QGraphicsItem* item , m_grid.childItems()) { | ||||
| delete item; | ||||
| } | ||||
| foreach(QGraphicsItem* item , m_labels.childItems()) { | ||||
| delete item; | ||||
| } | ||||
| } | ||||
| void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) | ||||
| { | ||||
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r103 | |||
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r176 | } | ||
| void AxisItem::updateDomain() | ||||
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r67 | { | ||
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r176 | QList<QGraphicsItem *> lines = m_grid.childItems(); | ||
| QList<QGraphicsItem *> labels = m_labels.childItems(); | ||||
| QList<QGraphicsItem *> shades = m_shades.childItems(); | ||||
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r67 | |||
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r176 | switch (m_type) | ||
| { | ||||
| case X_AXIS: | ||||
| { | ||||
| const qreal deltaX = m_rect.width() / m_ticks; | ||||
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r85 | |||
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r184 | m_axis.setLine(m_rect.left(), m_rect.bottom(), m_rect.right(), m_rect.bottom()); | ||
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r176 | for (int i = 0; i <= m_ticks; ++i) { | ||
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r85 | |||
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r176 | int x = i * deltaX + m_rect.left(); | ||
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r67 | |||
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r176 | qreal label = m_domain.m_minX + (i * m_domain.spanX()/ m_ticks); | ||
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r67 | |||
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r176 | QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(lines.at(i)); | ||
| lineItem->setLine(x, m_rect.top(), x, m_rect.bottom()); | ||||
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r67 | |||
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r176 | QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem*>(labels.at(i)); | ||
| labelItem->setText(QString::number(label)); | ||||
| QPointF center = labelItem->boundingRect().center(); | ||||
| labelItem->setTransformOriginPoint(center.x(), center.y()); | ||||
| labelItem->setPos(x - center.x(), m_rect.bottom() + label_padding); | ||||
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r67 | |||
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r176 | if(i%2){ | ||
| QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem*>(shades.at(i/2)); | ||||
| rectItem->setRect(x,m_rect.top(),deltaX,m_rect.height()); | ||||
| } | ||||
| } | ||||
| } | ||||
| break; | ||||
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r67 | |||
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r176 | case Y_AXIS: | ||
| { | ||||
| const qreal deltaY = m_rect.height()/ m_ticks; | ||||
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r67 | |||
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r184 | m_axis.setLine(m_rect.left() , m_rect.top(), m_rect.left(), m_rect.bottom()); | ||
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r176 | for (int i = 0; i <= m_ticks; ++i) { | ||
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r67 | |||
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r176 | int y = i * -deltaY + m_rect.bottom(); | ||
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r67 | |||
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r176 | qreal label = m_domain.m_minY + (i * m_domain.spanY()/ m_ticks); | ||
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r85 | |||
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r176 | QGraphicsLineItem *lineItem = static_cast<QGraphicsLineItem*>(lines.at(i)); | ||
| lineItem->setLine(m_rect.left() , y, m_rect.right(), y); | ||||
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r85 | |||
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r176 | QGraphicsSimpleTextItem *labelItem = static_cast<QGraphicsSimpleTextItem*>(labels.at(i)); | ||
| labelItem->setText(QString::number(label)); | ||||
| QPointF center = labelItem->boundingRect().center(); | ||||
| labelItem->setTransformOriginPoint(center.x(), center.y()); | ||||
| labelItem->setPos(m_rect.left() - labelItem->boundingRect().width() - label_padding , y-center.y()); | ||||
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r67 | |||
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r176 | |||
| if(i%2){ | ||||
| QGraphicsRectItem *rectItem = static_cast<QGraphicsRectItem*>(shades.at(i/2)); | ||||
| rectItem->setRect(m_rect.left(),y,m_rect.width(),deltaY); | ||||
| } | ||||
| } | ||||
| } | ||||
| break; | ||||
| default: | ||||
| qDebug()<<"Unknown axis type"; | ||||
| break; | ||||
| } | ||||
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r85 | } | ||
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r176 | |||
| void AxisItem::handleAxisChanged(const QChartAxis& axis) | ||||
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r85 | { | ||
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r184 | if(axis.isAxisVisible()) { | ||
| setAxisOpacity(100); | ||||
| } | ||||
| else { | ||||
| setAxisOpacity(0); | ||||
| } | ||||
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r176 | if(axis.isGridVisible()) { | ||
| setGridOpacity(100); | ||||
| } | ||||
| else { | ||||
| setGridOpacity(0); | ||||
| } | ||||
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r85 | |||
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r176 | if(axis.isLabelsVisible()) | ||
| { | ||||
| setLabelsOpacity(100); | ||||
| } | ||||
| else { | ||||
| setLabelsOpacity(0); | ||||
| } | ||||
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r85 | |||
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r176 | if(axis.isShadesVisible()) { | ||
| setShadesOpacity(100); | ||||
| } | ||||
| else { | ||||
| setShadesOpacity(0); | ||||
| } | ||||
| switch(axis.labelsOrientation()) | ||||
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r145 | { | ||
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r176 | case QChartAxis::LabelsOrientationHorizontal: | ||
| setLabelsAngle(0); | ||||
| break; | ||||
| case QChartAxis::LabelsOrientationVertical: | ||||
| setLabelsAngle(90); | ||||
| break; | ||||
| case QChartAxis::LabelsOrientationSlide: | ||||
| setLabelsAngle(-45); | ||||
| break; | ||||
| default: | ||||
| break; | ||||
| } | ||||
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r85 | |||
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r184 | setAxisPen(axis.axisPen()); | ||
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r176 | setLabelsPen(axis.labelsPen()); | ||
| setLabelsBrush(axis.labelsBrush()); | ||||
| setLabelsFont(axis.labelFont()); | ||||
| setGridPen(axis.gridPen()); | ||||
| setShadesPen(axis.shadesPen()); | ||||
| setShadesBrush(axis.shadesBrush()); | ||||
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r85 | |||
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r176 | } | ||
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r85 | |||
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r176 | void AxisItem::handleDomainChanged(const Domain& domain) | ||
| { | ||||
| m_domain = domain; | ||||
| updateDomain(); | ||||
| update(); | ||||
| } | ||||
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r85 | |||
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r176 | void AxisItem::handleGeometryChanged(const QRectF& rect) | ||
| { | ||||
| m_rect = rect; | ||||
| updateDomain(); | ||||
| update(); | ||||
| } | ||||
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r85 | |||
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r184 | void AxisItem::setAxisOpacity(qreal opacity) | ||
| { | ||||
| m_axis.setOpacity(opacity); | ||||
| } | ||||
| qreal AxisItem::axisOpacity() const | ||||
| { | ||||
| return m_axis.opacity(); | ||||
| } | ||||
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r176 | void AxisItem::setGridOpacity(qreal opacity) | ||
| { | ||||
| m_grid.setOpacity(opacity); | ||||
| } | ||||
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r85 | |||
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r176 | qreal AxisItem::gridOpacity() const | ||
| { | ||||
| return m_grid.opacity(); | ||||
| } | ||||
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r85 | |||
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r176 | void AxisItem::setLabelsOpacity(qreal opacity) | ||
| { | ||||
| m_labels.setOpacity(opacity); | ||||
| } | ||||
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r85 | |||
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r176 | qreal AxisItem::labelsOpacity() const | ||
| { | ||||
| return m_labels.opacity(); | ||||
| } | ||||
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r85 | |||
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r176 | void AxisItem::setShadesOpacity(qreal opacity) | ||
| { | ||||
| m_shades.setOpacity(opacity); | ||||
| } | ||||
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r85 | |||
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r176 | qreal AxisItem::shadesOpacity() const | ||
| { | ||||
| return m_shades.opacity(); | ||||
| } | ||||
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r67 | |||
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r176 | void AxisItem::setLabelsAngle(int angle) | ||
| { | ||||
| foreach(QGraphicsItem* item , m_labels.childItems()) { | ||||
| QPointF center = item->boundingRect().center(); | ||||
| item->setRotation(angle); | ||||
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r145 | } | ||
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r176 | |||
| m_labelsAngle=angle; | ||||
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r67 | } | ||
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r176 | void AxisItem::setLabelsPen(const QPen& pen) | ||
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r140 | { | ||
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r176 | foreach(QGraphicsItem* item , m_labels.childItems()) { | ||
| static_cast<QGraphicsSimpleTextItem*>(item)->setPen(pen); | ||||
| } | ||||
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r140 | } | ||
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r176 | void AxisItem::setLabelsBrush(const QBrush& brush) | ||
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r140 | { | ||
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r176 | foreach(QGraphicsItem* item , m_labels.childItems()) { | ||
| static_cast<QGraphicsSimpleTextItem*>(item)->setBrush(brush); | ||||
| } | ||||
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r140 | } | ||
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r176 | void AxisItem::setLabelsFont(const QFont& font) | ||
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r140 | { | ||
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r176 | foreach(QGraphicsItem* item , m_labels.childItems()) { | ||
| static_cast<QGraphicsSimpleTextItem*>(item)->setFont(font); | ||||
| } | ||||
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r140 | } | ||
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r176 | void AxisItem::setShadesBrush(const QBrush& brush) | ||
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r140 | { | ||
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r176 | foreach(QGraphicsItem* item , m_shades.childItems()) { | ||
| static_cast<QGraphicsRectItem*>(item)->setBrush(brush); | ||||
| } | ||||
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r140 | } | ||
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r176 | void AxisItem::setShadesPen(const QPen& pen) | ||
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r140 | { | ||
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r176 | foreach(QGraphicsItem* item , m_shades.childItems()) { | ||
| static_cast<QGraphicsRectItem*>(item)->setPen(pen); | ||||
| } | ||||
| } | ||||
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r184 | void AxisItem::setAxisPen(const QPen& pen) | ||
| { | ||||
| m_axis.setPen(pen); | ||||
| } | ||||
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r176 | void AxisItem::setGridPen(const QPen& pen) | ||
| { | ||||
| foreach(QGraphicsItem* item , m_grid.childItems()) { | ||||
| static_cast<QGraphicsLineItem*>(item)->setPen(pen); | ||||
| } | ||||
| } | ||||
| void AxisItem::setTicks(int count) | ||||
| { | ||||
| if(count!=m_ticks){ | ||||
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r140 | clear(); | ||
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r176 | m_ticks=count; | ||
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r140 | createItems(); | ||
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r176 | } | ||
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r140 | } | ||
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r67 | //TODO "nice numbers algorithm" | ||
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r140 | #include "moc_axisitem_p.cpp" | ||
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r67 | |||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||