|
|
#include "xygrid_p.h"
|
|
|
#include "xylinechart_p.h"
|
|
|
#include <QPainter>
|
|
|
|
|
|
QCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
XYGrid::XYGrid(const XYLineChart* const chart, QGraphicsItem* parent):QGraphicsItem(parent),
|
|
|
m_chart(chart)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
XYGrid::~XYGrid()
|
|
|
{
|
|
|
// TODO Auto-generated destructor stub
|
|
|
}
|
|
|
|
|
|
void XYGrid::setSize(const QSizeF& size) {
|
|
|
m_rect.setSize(size.toSize());
|
|
|
}
|
|
|
|
|
|
|
|
|
QRectF XYGrid::boundingRect() const
|
|
|
{
|
|
|
return m_rect;
|
|
|
}
|
|
|
|
|
|
void XYGrid::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget)
|
|
|
{
|
|
|
if (!m_rect.isValid())
|
|
|
return;
|
|
|
|
|
|
const XYPlotData& plotData = m_chart->xyPlotData();
|
|
|
|
|
|
const qreal deltaX = (m_rect.width() -1) / plotData.ticksX();
|
|
|
const qreal deltaY = (m_rect.height() - 1) / plotData.ticksY();
|
|
|
|
|
|
for (int i = 0; i <= plotData.ticksX(); ++i) {
|
|
|
|
|
|
int x = i * deltaX + m_rect.left();
|
|
|
qreal label = plotData.m_minX + (i * plotData.spanX()
|
|
|
/ plotData.ticksX());
|
|
|
painter->drawLine(x, m_rect.top()+1, x, m_rect.bottom());
|
|
|
//painter->drawLine(x, m_rect.bottom(), x, m_rect.bottom() + 5);
|
|
|
|
|
|
painter->drawText(x - 50, m_rect.bottom() + 5, 100, 20,
|
|
|
Qt::AlignHCenter | Qt::AlignTop,
|
|
|
QString::number(label));
|
|
|
}
|
|
|
|
|
|
for (int j = 0; j <= plotData.ticksY(); ++j) {
|
|
|
|
|
|
int y = j * -deltaY + m_rect.bottom();
|
|
|
qreal label = plotData.m_minY + (j * plotData.spanY()
|
|
|
/ plotData.ticksY());
|
|
|
|
|
|
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));
|
|
|
}
|
|
|
|
|
|
//painter->drawRect(m_rect.adjusted(0, 0, -1, -1));
|
|
|
}
|
|
|
|
|
|
QCHART_END_NAMESPACE
|
|
|
|
