//////////////////////////////////////////////////////////////////////
// Called when a mouse button is pressed
//////////////////////////////////////////////////////////////////////
void CPlotter::mousePressEvent(QMouseEvent * event)
{
QPoint pt = event->pos();
if (NONE == m_CursorCaptured)
{
if (IsPointCloseTo(pt.x(), m_DemodFreqX, m_CursorCaptureDelta))
{ //in move demod box center frequency region
m_CursorCaptured = CENTER;
m_GrabPosition = pt.x()-m_DemodFreqX;
}
else if (IsPointCloseTo(pt.x(), m_DemodLowCutFreqX, m_CursorCaptureDelta))
{ // filter low cut
m_CursorCaptured = LEFT;
m_GrabPosition = pt.x()-m_DemodLowCutFreqX;
}
else if (IsPointCloseTo(pt.x(), m_DemodHiCutFreqX, m_CursorCaptureDelta))
{ // filter high cut
m_CursorCaptured = RIGHT;
m_GrabPosition = pt.x()-m_DemodHiCutFreqX;
}
else
{
if (event->buttons() == Qt::LeftButton)
{
//if cursor not captured set demod frequency and start demod box capture
m_DemodCenterFreq = RoundFreq(FreqfromX(pt.x()),m_ClickResolution );
emit NewDemodFreq(m_DemodCenterFreq, m_DemodCenterFreq-m_CenterFreq);
//save initial grab postion from m_DemodFreqX
//setCursor(QCursor(Qt::CrossCursor));
m_CursorCaptured = CENTER;
m_GrabPosition = 1;
//m_GrabPosition = pt.x()-m_DemodFreqX;
DrawOverlay();
}
else if (event->buttons() == Qt::MiddleButton)
{
// set center freq
m_CenterFreq = RoundFreq(FreqfromX(pt.x()), m_ClickResolution);
m_DemodCenterFreq = m_CenterFreq;
emit NewCenterFreq(m_CenterFreq);
emit NewDemodFreq(m_DemodCenterFreq, m_DemodCenterFreq-m_CenterFreq);
}
}
}
else
{
if (m_CursorCaptured == YAXIS)
// get ready for moving Y axis
m_Yzero = pt.y();
else if (m_CursorCaptured == XAXIS)
m_Xzero = pt.x();
}
}
//////////////////////////////////////////////////////////////////////
// Called when mouse moves and does different things depending
//on the state of the mouse buttons for dragging the demod bar or
// filter edges.
//////////////////////////////////////////////////////////////////////
void CPlotter::mouseMoveEvent(QMouseEvent* event)
{
QPoint pt = event->pos();
/* mouse enter / mouse leave events */
if (m_OverlayPixmap.rect().contains(pt))
{ //is in Overlay bitmap region
if (event->buttons() == Qt::NoButton)
{ //if no mouse button monitor grab regions and change cursor icon
if (IsPointCloseTo(pt.x(), m_DemodFreqX, m_CursorCaptureDelta))
{ //in move demod box center frequency region
if (CENTER != m_CursorCaptured)
setCursor(QCursor(Qt::CrossCursor));
m_CursorCaptured = CENTER;
}
else if (IsPointCloseTo(pt.x(), m_DemodHiCutFreqX, m_CursorCaptureDelta))
{ //in move demod hicut region
if (RIGHT != m_CursorCaptured)
setCursor(QCursor(Qt::SizeHorCursor));
m_CursorCaptured = RIGHT;
}
else if (IsPointCloseTo(pt.x(), m_DemodLowCutFreqX, m_CursorCaptureDelta))
{ //in move demod lowcut region
if (LEFT != m_CursorCaptured)
setCursor(QCursor(Qt::SizeHorCursor));
m_CursorCaptured = LEFT;
}
else if (IsPointCloseTo(pt.x(), m_YAxisWidth/2, m_YAxisWidth/2))
{
if (YAXIS != m_CursorCaptured)
setCursor(QCursor(Qt::OpenHandCursor));
m_CursorCaptured = YAXIS;
}
else if (IsPointCloseTo(pt.y(), m_XAxisYCenter, m_CursorCaptureDelta+5))
{
if (XAXIS != m_CursorCaptured)
setCursor(QCursor(Qt::OpenHandCursor));
m_CursorCaptured = XAXIS;
}
else
{ //if not near any grab boundaries
if (NONE != m_CursorCaptured)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
m_GrabPosition = 0;
}
}
else
{ //not in Overlay region
if (event->buttons() == Qt::NoButton)
{
if (NONE != m_CursorCaptured)
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
m_GrabPosition = 0;
}
}
// process mouse moves while in cursor capture modes
if (YAXIS == m_CursorCaptured)
{
if (event->buttons() & Qt::LeftButton)
{
setCursor(QCursor(Qt::ClosedHandCursor));
// move Y scale up/down
int delta_px = m_Yzero - pt.y();
int delta_db = delta_px * abs(m_MindB-m_MaxdB)/m_OverlayPixmap.height();
m_MindB -= delta_db;
m_MaxdB -= delta_db;
if (m_Running)
m_DrawOverlay = true;
else
DrawOverlay();
m_Yzero = pt.y();
}
}
else if (XAXIS == m_CursorCaptured)
{
if (event->buttons() & (Qt::LeftButton | Qt::MiddleButton))
{
setCursor(QCursor(Qt::ClosedHandCursor));
// pan viewable range or move center frequency
int delta_px = m_Xzero - pt.x();
qint64 delta_hz = delta_px * m_Span / m_OverlayPixmap.width();
if (event->buttons() & Qt::MiddleButton)
{
m_CenterFreq += delta_hz;
m_DemodCenterFreq += delta_hz;
emit NewCenterFreq(m_CenterFreq);
}
else
{
m_FftCenter += delta_hz;
}
if (m_Running)
m_DrawOverlay = true;
else
DrawOverlay();
m_Xzero = pt.x();
}
}
else if (LEFT == m_CursorCaptured)
{ // moving in demod lowcut region
if (event->buttons() & (Qt::LeftButton|Qt::RightButton))
{ //moving in demod lowcut region with left button held
if (m_GrabPosition != 0)
{
m_DemodLowCutFreq = FreqfromX(pt.x()-m_GrabPosition ) - m_DemodCenterFreq;
m_DemodLowCutFreq = RoundFreq(m_DemodLowCutFreq, m_FilterClickResolution);
if (m_symetric && (event->buttons() & Qt::LeftButton)) // symetric adjustment
{
m_DemodHiCutFreq = -m_DemodLowCutFreq;
}
ClampDemodParameters();
emit NewFilterFreq(m_DemodLowCutFreq, m_DemodHiCutFreq);
if (m_Running)
m_DrawOverlay = true; // schedule update of overlay during draw()
else
DrawOverlay(); // not running so update oiverlay now
}
else
{ //save initial grab postion from m_DemodFreqX
m_GrabPosition = pt.x()-m_DemodLowCutFreqX;
}
}
else if (event->buttons() & ~Qt::NoButton)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
else if (RIGHT == m_CursorCaptured)
{ // moving in demod highcut region
if (event->buttons() & (Qt::LeftButton|Qt::RightButton))
{ // moving in demod highcut region with right button held
if (m_GrabPosition != 0)
{
m_DemodHiCutFreq = FreqfromX( pt.x()-m_GrabPosition ) - m_DemodCenterFreq;
m_DemodHiCutFreq = RoundFreq(m_DemodHiCutFreq, m_FilterClickResolution);
if (m_symetric && (event->buttons() & Qt::LeftButton)) // symetric adjustment
{
m_DemodLowCutFreq = -m_DemodHiCutFreq;
}
ClampDemodParameters();
emit NewFilterFreq(m_DemodLowCutFreq, m_DemodHiCutFreq);
if (m_Running)
m_DrawOverlay = true; // schedule update of overlay during draw()
else
DrawOverlay(); // not running so update oiverlay now
}
else
{ //save initial grab postion from m_DemodFreqX
m_GrabPosition = pt.x()-m_DemodHiCutFreqX;
}
}
else if (event->buttons() & ~Qt::NoButton)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
else if (CENTER == m_CursorCaptured)
{ // moving inbetween demod lowcut and highcut region
if (event->buttons() & Qt::LeftButton)
{ // moving inbetween demod lowcut and highcut region with left button held
if (m_GrabPosition != 0)
{
m_DemodCenterFreq = RoundFreq(FreqfromX(pt.x()-m_GrabPosition), m_ClickResolution );
emit NewDemodFreq(m_DemodCenterFreq, m_DemodCenterFreq-m_CenterFreq);
if (m_Running)
m_DrawOverlay = true; // schedule update of overlay during draw()
else
DrawOverlay(); // not running so update oiverlay now
}
else
{ //save initial grab postion from m_DemodFreqX
m_GrabPosition = pt.x()-m_DemodFreqX;
}
}
else if (event->buttons() & ~Qt::NoButton)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
else //if cursor not captured
{
m_GrabPosition = 0;
}
if (!this->rect().contains(pt))
{
if(NONE != m_CursorCaptured)
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
//////////////////////////////////////////////////////////////////////
// Called when mouse moves and does different things depending
//on the state of the mouse buttons for dragging the demod bar or
// filter edges.
//////////////////////////////////////////////////////////////////////
void CPlotter::mouseMoveEvent(QMouseEvent* event)
{
QPoint pt = event->pos();
/* mouse enter / mouse leave events */
if (m_OverlayPixmap.rect().contains(pt))
{ //is in Overlay bitmap region
if (event->buttons() == Qt::NoButton)
{ //if no mouse button monitor grab regions and change cursor icon
if (IsPointCloseTo(pt.x(), (m_DemodHiCutFreqX+m_DemodLowCutFreqX)/2, m_CursorCaptureDelta))
{ //in move demod box center frequency region
if (CENTER != m_CursorCaptured)
setCursor(QCursor(Qt::SizeHorCursor));
m_CursorCaptured = CENTER;
}
else if (IsPointCloseTo(pt.x(), m_DemodHiCutFreqX, m_CursorCaptureDelta))
{ //in move demod hicut region
if (RIGHT != m_CursorCaptured)
setCursor(QCursor(Qt::SizeHorCursor));
m_CursorCaptured = RIGHT;
}
else if (IsPointCloseTo(pt.x(), m_DemodLowCutFreqX, m_CursorCaptureDelta))
{ //in move demod lowcut region
if (LEFT != m_CursorCaptured)
setCursor(QCursor(Qt::SizeHorCursor));
m_CursorCaptured = LEFT;
}
else
{ //if not near any grab boundaries
if (NONE != m_CursorCaptured)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
m_GrabPosition = 0;
}
}
else
{ //not in Overlay region
if (event->buttons() == Qt::NoButton)
{
if (NONE != m_CursorCaptured)
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
m_GrabPosition = 0;
}
}
//process mouse moves while in cursor capture modes
if (LEFT == m_CursorCaptured)
{ //moving in demod lowcut region
if (event->buttons() & Qt::LeftButton)
{ //moving in demod lowcut region with left button held
if (m_GrabPosition != 0)
{
m_DemodLowCutFreq = FreqfromX(pt.x()-m_GrabPosition ) - m_DemodCenterFreq;
m_DemodLowCutFreq = RoundFreq(m_DemodLowCutFreq, m_FilterClickResolution);
//DrawOverlay();
if (m_symetric)
{
m_DemodHiCutFreq = -m_DemodLowCutFreq;
//emit NewHighCutFreq(m_DemodHiCutFreq);
}
//emit NewLowCutFreq(m_DemodLowCutFreq);
emit NewFilterFreq(m_DemodLowCutFreq, m_DemodHiCutFreq);
DrawOverlay();
}
else
{ //save initial grab postion from m_DemodFreqX
m_GrabPosition = pt.x()-m_DemodLowCutFreqX;
}
}
else if (event->buttons() & ~Qt::NoButton)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
else if (RIGHT == m_CursorCaptured)
{ //moving in demod highcut region
if (event->buttons() & Qt::LeftButton)
{ //moving in demod highcut region with right button held
if (m_GrabPosition != 0)
{
m_DemodHiCutFreq = FreqfromX( pt.x()-m_GrabPosition ) - m_DemodCenterFreq;
m_DemodHiCutFreq = RoundFreq(m_DemodHiCutFreq, m_FilterClickResolution);
DrawOverlay();
if (m_symetric)
{
m_DemodLowCutFreq = -m_DemodHiCutFreq;
//emit NewLowCutFreq(m_DemodLowCutFreq);
}
//emit NewHighCutFreq(m_DemodHiCutFreq);
emit NewFilterFreq(m_DemodLowCutFreq, m_DemodHiCutFreq);
}
else
{ //save initial grab postion from m_DemodFreqX
m_GrabPosition = pt.x()-m_DemodHiCutFreqX;
}
}
else if (event->buttons() & ~Qt::NoButton)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
else if (CENTER == m_CursorCaptured)
{ //moving inbetween demod lowcut and highcut region
if (event->buttons() & Qt::LeftButton)
{//moving inbetween demod lowcut and highcut region with left button held
if (m_GrabPosition != 0)
{
m_DemodCenterFreq = RoundFreq(FreqfromX(pt.x()-m_GrabPosition), m_ClickResolution );
emit NewDemodFreq(m_DemodCenterFreq, m_DemodCenterFreq-m_CenterFreq);
DrawOverlay();
}
else
{ //save initial grab postion from m_DemodFreqX
m_GrabPosition = pt.x()-m_DemodFreqX;
}
}
else if (event->buttons() & ~Qt::NoButton)
{
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
else //if cursor not captured
{
m_GrabPosition = 0;
}
if (!this->rect().contains(pt))
{
if(NONE != m_CursorCaptured)
setCursor(QCursor(Qt::ArrowCursor));
m_CursorCaptured = NONE;
}
}
