xygrid.cpp
70 lines
| 1.8 KiB
| text/x-c
|
CppLexer
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r12 | #include "xygrid_p.h" | ||
#include <QPainter> | ||||
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r21 | #include <QDebug> | ||
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r12 | |||
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r30 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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r12 | |||
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r21 | XYGrid::XYGrid(QGraphicsItem* parent):QGraphicsItem(parent) | ||
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r12 | { | ||
} | ||||
XYGrid::~XYGrid() | ||||
{ | ||||
// TODO Auto-generated destructor stub | ||||
} | ||||
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r21 | void XYGrid::setSize(const QSizeF& size) | ||
{ | ||||
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r12 | m_rect.setSize(size.toSize()); | ||
} | ||||
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r25 | void XYGrid::setXYPlotData(const XYPlotDomain& xyPlotData) | ||
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r21 | { | ||
m_xyPlotData = xyPlotData; | ||||
} | ||||
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r12 | |||
QRectF XYGrid::boundingRect() const | ||||
{ | ||||
return m_rect; | ||||
} | ||||
void XYGrid::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget) | ||||
{ | ||||
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r21 | if (!m_rect.isValid()) | ||
return; | ||||
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r12 | |||
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r21 | const qreal deltaX = (m_rect.width() -1) / m_xyPlotData.ticksX(); | ||
const qreal deltaY = (m_rect.height() - 1) / m_xyPlotData.ticksY(); | ||||
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r12 | |||
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r21 | for (int i = 0; i <= m_xyPlotData.ticksX(); ++i) { | ||
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r12 | |||
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r21 | int x = i * deltaX + m_rect.left(); | ||
qreal label = m_xyPlotData.m_minX + (i * m_xyPlotData.spanX() | ||||
/ m_xyPlotData.ticksX()); | ||||
painter->drawLine(x, m_rect.top()+1, x, m_rect.bottom()); | ||||
//painter->drawLine(x, m_rect.bottom(), x, m_rect.bottom() + 5); | ||||
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r12 | |||
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r21 | painter->drawText(x - 50, m_rect.bottom() + 5, 100, 20, | ||
Qt::AlignHCenter | Qt::AlignTop, | ||||
QString::number(label)); | ||||
} | ||||
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r12 | |||
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r21 | for (int j = 0; j <= m_xyPlotData.ticksY(); ++j) { | ||
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r12 | |||
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r21 | int y = j * -deltaY + m_rect.bottom(); | ||
qreal label = m_xyPlotData.m_minY + (j * m_xyPlotData.spanY() | ||||
/ m_xyPlotData.ticksY()); | ||||
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r12 | |||
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r21 | painter->drawLine(m_rect.left(), y, m_rect.right()-1, y); | ||
//painter->drawLine(m_rect.left() - 5, y, m_rect.left(), y); | ||||
//TODO : margin = 50 ; | ||||
painter->drawText(m_rect.left() - 50, y - 10, 50 - 5, 20, | ||||
Qt::AlignRight | Qt::AlignVCenter, | ||||
QString::number(label)); | ||||
} | ||||
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r12 | |||
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r21 | //painter->drawRect(m_rect.adjusted(0, 0, -1, -1)); | ||
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r12 | } | ||
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r30 | QTCOMMERCIALCHART_END_NAMESPACE | ||