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/***************************************************************************
* Copyright (C) 2005 by David Saxton *
* [email protected] *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef PROBEPOSITIONER_H
#define PROBEPOSITIONER_H
#include <qwidget.h>
class ProbeData;
typedef QMap< int, ProbeData* > ProbeDataMap;
const float probeArrowWidth = 9;
const float probeArrowHeight = 12;
/**
Widget for positioning the output of Probes in the OscilloscopeView
@author David Saxton
*/
class ProbePositioner : public QWidget
{
Q_OBJECT
public:
ProbePositioner(QWidget *parent = 0, const char *name = 0);
~ProbePositioner();
/**
* Returns the amount of space (height in pixels) that a probe output
* takes up
*/
int probeOutputHeight() const;
/**
* Returns the probe position (from the top) in pixels that the probe
* with the given id should be displayed at, or -1 if probe with the
* given id couldn't be found
*/
int probePosition( ProbeData *probeData ) const;
/**
* Sets the probe position relative to the top of this widget (and hence
* relative to the top of the oscilloscope view) in pixels
*/
void setProbePosition( ProbeData *probeData, int position );
/**
* Returns the probe at the given position (plus or minus an an arrow),
* or NULL if none. Records the offset of the position from the mouse
* in m_probePosOffset.
*/
ProbeData* probeAtPosition( const QPoint &pos );
public slots:
void forceRepaint();
protected slots:
void slotProbeDataRegistered( int id, ProbeData *probe );
void slotProbeDataUnregistered( int id );
protected:
virtual void mousePressEvent( QMouseEvent * e );
virtual void mouseReleaseEvent( QMouseEvent * e );
virtual void mouseMoveEvent( QMouseEvent * e );
virtual void paintEvent( QPaintEvent *e );
virtual void resizeEvent( QResizeEvent *event );
ProbeDataMap m_probeDataMap;
ProbeData *p_draggedProbe;
int m_probePosOffset;
bool b_needRedraw;
QPixmap *m_pixmap;
};
#endif
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