120 lines
4.1 KiB
C++
120 lines
4.1 KiB
C++
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#include "gtl_gui_chart_marker_line.h"
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namespace gtl
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{
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namespace gui
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{
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chart_marker_line::chart_marker_line(::chart::series::series *parent, int idx, bool is_label_visible, Qt::Orientation orientation)
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: chart_line(parent, orientation)
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, _width(15)
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, _idx(idx)
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, _is_label_visible(is_label_visible)
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{
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setZValue(1);
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}
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void chart_marker_line::set_idx(int idx)
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{
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prepareGeometryChange();
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_idx = idx;
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}
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int chart_marker_line::idx() const
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{
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return _idx;
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}
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void chart_marker_line::set_label_visible(bool value)
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{
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prepareGeometryChange();
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_is_label_visible = value;
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}
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void chart_marker_line::set_label(QString label)
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{
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prepareGeometryChange();
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_lbl_rect.setWidth(100);
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_label = label;
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}
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QRectF chart_marker_line::boundingRect() const
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{
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QRectF rect = chart::instrument::primitive::line::boundingRect();
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QRectF lbl_rect = _lbl_rect;
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if(_orientation == Qt::Vertical)
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{
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if(rect.center().x() - lbl_rect.width() - 3 > 0)
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lbl_rect.moveTo(rect.center().x() - lbl_rect.width() - 3, rect.top());
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else
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lbl_rect.moveTo(rect.center().x() + 3, rect.top());
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return QRectF(rect.center().x() - _width / 2, rect.top(), _width, rect.height()).united(lbl_rect);
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}
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else
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{
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if(rect.center().y() - lbl_rect.height() - 3 > 0)
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lbl_rect.moveTo(rect.right() - lbl_rect.width() - 3, rect.center().y() - lbl_rect.height() - 3);
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else
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lbl_rect.moveTo(rect.right() - lbl_rect.width() - 3, rect.center().y() + 3);
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return QRectF(rect.left(), rect.center().y() - _width / 2, rect.width(), _width).united(lbl_rect);
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}
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}
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void chart_marker_line::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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::chart::instrument::primitive::line::paint(painter, option, widget);
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if(_is_label_visible)
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{
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QString lbl = _label;
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if(_label.isEmpty())
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lbl = QString::number(_idx + 1);
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QRectF rect = /*boundingRect()*/chart::instrument::primitive::line::boundingRect();
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_lbl_rect = painter->fontMetrics().boundingRect(lbl);
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if(_orientation == Qt::Vertical)
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{
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if(rect.center().x() - _lbl_rect.width() - 3 > 0)
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_lbl_rect.moveTo(rect.center().x() - _lbl_rect.width() - 3, rect.top());
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else
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_lbl_rect.moveTo(rect.center().x() + 3, rect.top());
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}
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else
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{
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if(rect.center().y() - _lbl_rect.height() - 3 > 0)
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_lbl_rect.moveTo(rect.right() - _lbl_rect.width() - 3, rect.center().y() - _lbl_rect.height() - 3);
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else
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_lbl_rect.moveTo(rect.right() - _lbl_rect.width() - 3, rect.center().y() + 3);
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}
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painter->drawText(_lbl_rect, Qt::AlignCenter, lbl);
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}
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qreal dx = _width / 2.0;
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qreal dy = _width / 2.0;
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QVariantList data;
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emit get_series_data(pos(), true, data);
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for(int i = 0;i < data.size(); i += 2)
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{
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if(data[i].toDouble() == qQNaN())
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continue;
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qreal y = /*_series->axis_y()->map_to_widget(*/data[i].toDouble()/*)*/;
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qreal x = _series->axis_x()->map_to_widget(pos());
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painter->setPen(QPen(data[i + 1].value<QColor>(), 0));
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painter->drawLine((QPointF(x - dx, y - dy)), (QPointF(x + dx, y + dy)));
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painter->drawLine((QPointF(x - dx, y + dy)), (QPointF(x + dx, y - dy)));
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}
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}
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}
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}
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