---

VisCSCPlotWidgetAxisX Class Reference

#include <VisReco/VisMuonCSC/interface/VisCSCPlotWidgetAxisX.h>

List of all members.

Public Member Functions
QSize	minimumSizeHint () const
QSize	sizeHint () const
	VisCSCPlotWidgetAxisX (const int nbins, QWidget *parent=0, const char *name=0)
	~VisCSCPlotWidgetAxisX (void)
Protected Member Functions
void	paintEvent (QPaintEvent *)
Private Attributes
int	m_bins

---

Detailed Description

Definition at line 5 of file VisCSCPlotWidgetAxisX.h.

---

Constructor & Destructor Documentation

VisCSCPlotWidgetAxisX::VisCSCPlotWidgetAxisX	(	const int	nbins,
		QWidget *	parent = 0,
		const char *	name = 0
	)

Definition at line 7 of file VisCSCPlotWidgetAxisX.cc.

References m_bins.

                                                                                              : QWidget(parent, name), 
m_bins(nbins)
{
        assert(m_bins>0);
}

VisCSCPlotWidgetAxisX::~VisCSCPlotWidgetAxisX

(

void

)

Definition at line 13 of file VisCSCPlotWidgetAxisX.cc.

{
}

---

Member Function Documentation

QSize VisCSCPlotWidgetAxisX::minimumSizeHint

(

)

const

Definition at line 16 of file VisCSCPlotWidgetAxisX.cc.

{
        // minimumSizeHint/sizeHint must be coordinated with y axis/VisCSCPlotWidget 
        return QSize( 80, 40 );
}

void VisCSCPlotWidgetAxisX::paintEvent

(

QPaintEvent *

)

[protected]

Definition at line 25 of file VisCSCPlotWidgetAxisX.cc.

References i, int, j, label, m_bins, scale, and width.

{
        QPainter painter(this);
        painter.setPen(Qt::blue);
        QFont sansFont( "Helvetica", 9 );
        painter.setFont( sansFont );
        QFontMetrics fm( sansFont );

        // assume every five bins is a good choice: change to 16 for CSC
        const int bin_spacing = 16;
        QPointArray scale( 4 * int(floor(float(m_bins) / bin_spacing)) );
        int yoffset = 2;
        int tickHeight = 4;

        // don't forget that the last pixel is width()-1
        for (int i = bin_spacing, j = 0; i <= m_bins; i += bin_spacing )
        {
                // labels go under center of bin before tick marks
                QString label = QString("%1").arg(i);
                int labelWidth = fm.width(label);
                int xtext = int(floor( (i - 0.5F)*width()/m_bins - labelWidth/2.F + 0.5F) );
                // check to see last label doesn't stick over the edge
                if (xtext > width()-1 - fm.width(label))
                {
                        xtext = width()-1 - fm.width(label);
                }
                painter.drawText( xtext, fm.height(), label );
                // draw tick marks
                scale.setPoint(j++, int(float(i - bin_spacing)*(width()-1)/m_bins + 0.5F), yoffset+tickHeight );
                scale.setPoint(j++, int(float(i - bin_spacing)*(width()-1)/m_bins + 0.5F), yoffset );
                scale.setPoint(j++, int(float(i              )*(width()-1)/m_bins + 0.5F), yoffset );
                scale.setPoint(j++, int(float(i              )*(width()-1)/m_bins + 0.5F), yoffset+tickHeight );
        }       
        painter.drawPolyline(scale);
}

QSize VisCSCPlotWidgetAxisX::sizeHint

(

void

)

const

Definition at line 21 of file VisCSCPlotWidgetAxisX.cc.

{
        return QSize( 400, 50 );
}

---

Member Data Documentation

int VisCSCPlotWidgetAxisX::m_bins [private]

Definition at line 16 of file VisCSCPlotWidgetAxisX.h.

Referenced by paintEvent(), and VisCSCPlotWidgetAxisX().

---

The documentation for this class was generated from the following files:

• VisReco/VisMuonCSC/interface/VisCSCPlotWidgetAxisX.h
• VisReco/VisMuonCSC/src/VisCSCPlotWidgetAxisX.cc

---