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42 lines
930 B
C++
42 lines
930 B
C++
#include <QPainter>
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#include "griditem.h"
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#define GRID_WIDTH 0
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void GridItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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QWidget *widget)
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{
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Q_UNUSED(option);
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Q_UNUSED(widget);
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QBrush brush(Qt::gray);
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QPen pen = QPen(brush, GRID_WIDTH, Qt::DotLine);
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painter->setRenderHint(QPainter::Antialiasing, false);
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painter->setPen(pen);
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for (int i = 0; i < _xTicks.size(); i++)
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painter->drawLine(_xTicks.at(i), 0, _xTicks.at(i),
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-_boundingRect.height());
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for (int i = 0; i < _yTicks.size(); i++)
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painter->drawLine(0, -_yTicks.at(i), boundingRect().width(),
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-_yTicks.at(i));
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//painter->setPen(Qt::red);
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//painter->drawRect(boundingRect());
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}
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void GridItem::setTicks(const QList<qreal> &x, const QList<qreal> &y)
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{
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_xTicks = x; _yTicks = y;
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update();
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}
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void GridItem::setSize(const QSizeF &size)
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{
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prepareGeometryChange();
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_boundingRect = QRectF(QPointF(0, -size.height()), size);
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}
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