Пример #1
0
void QGraph::DrawLegend(QPainter &painter, QPoint &Place, QFont &LegendFont, QColor &LegendColor)
{
	painter.save();
	int LegendSize, ypos;
	QString strong;

	LegendSize = 30;
	ypos = 12;

	painter.setFont(LegendFont);

	CCurve* pCurve;

	QPen TextPen(LegendColor);
	QPen LegendPen(Qt::gray);

	int npos = 0;
	for (int nc=0; nc< m_oaCurves.size(); nc++)
	{
		pCurve = (CCurve*) m_oaCurves[nc];
		if(pCurve->IsVisible())
		{
			pCurve->GetTitle(strong);
			if(pCurve->n>0 && strong.length())//is there anything to draw ?
			{

				LegendPen.setColor(pCurve->GetColor());
				LegendPen.setStyle(GetStyle(pCurve->GetStyle()));
				LegendPen.setWidth(pCurve->GetWidth());

				painter.setPen(LegendPen);

				painter.drawLine(Place.x(),                     Place.y() + ypos*npos,
								 Place.x() + (int)(LegendSize), Place.y() + ypos*npos);

				painter.setPen(TextPen);
				painter.drawText(Place.x() + (int)(1.5*LegendSize),    Place.y()  + ypos*npos+(int)(ypos/2),
								 strong);

				npos++;
			}
		}
	}

	painter.restore();

}
Пример #2
0
void QGraph::DrawCurve(int nIndex, QPainter &painter)
{
	painter.save();
	static double scaley;
	static int i, ptside;
	static QPoint From, To, Min, Max;
	static QRect rViewRect;

	ptside = 2;
	CCurve* pCurve = GetCurve(nIndex);

	scaley = m_scaley;

	QBrush FillBrush(m_BkColor);
	painter.setBrush(FillBrush);

	QPen CurvePen(pCurve->GetColor());
	CurvePen.setStyle(GetStyle(pCurve->GetStyle()));
	CurvePen.setWidth((int)pCurve->GetWidth());
	painter.setPen(CurvePen);

	Min.setX(int(xmin/m_scalex) +m_ptoffset.x());
	Min.setY(int(ymin/scaley) +m_ptoffset.y());
	Max.setX(int(xmax/m_scalex) +m_ptoffset.x());
	Max.setY(int(ymax/scaley) +m_ptoffset.y());
	rViewRect.setTopLeft(Min);
	rViewRect.setBottomRight(Max);

	if(pCurve->n>=1)
	{
		From.setX(int(pCurve->x[0]/m_scalex+m_ptoffset.x()));
		From.setY(int(pCurve->y[0]/scaley  +m_ptoffset.y()));

		if(pCurve->IsVisible())
		{
			for (i=1; i<pCurve->n;i++)
			{
				To.setX(int(pCurve->x[i]/m_scalex+m_ptoffset.x()));
				To.setY(int(pCurve->y[i]/scaley  +m_ptoffset.y()));
				painter.drawLine(From, To);
	
				From = To;
			}
		}

		if(pCurve->PointsVisible())
		{
			for (i=0; i<pCurve->n;i++)
			{
				if(pCurve->GetSelected() !=i)
					painter.drawRect(int(pCurve->x[i]/m_scalex+m_ptoffset.x())-ptside,
									 int(pCurve->y[i]/  scaley+m_ptoffset.y())-ptside,
									 2*ptside,2*ptside);
			}
		}
	}

	if(m_bHighlightPoint)
	{
		int point = pCurve->GetSelected();
		if(point>=0)
		{
			//highlight
			QColor HighColor(0,40, 150);
			CurvePen.setWidth((int)pCurve->GetWidth());
			CurvePen.setColor(HighColor);
			painter.setPen(CurvePen);
			To.setX(int(pCurve->x[point]/m_scalex+m_ptoffset.x()));
			To.setY(int(pCurve->y[point]/scaley  +m_ptoffset.y()));
			painter.drawRect(To.x()-ptside-1,To.y()-ptside-1, 2*(ptside+1),2*(ptside+1));
		}
	}
	painter.restore();
}