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improved RSGraph class. Used it for Turtle statistics and bandwidth statistics as well

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7612 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2014-10-15 22:00:49 +00:00
parent bd96859704
commit 8c1bf3cf8d
16 changed files with 267 additions and 145 deletions
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58
retroshare-gui/src/gui/common/RSGraphWidget.cpp
View file

@ -65,6 +65,32 @@ void RSGraphSource::start()
int RSGraphSource::n_values() const { return _points.size() ; }
QString RSGraphSource::displayName(int i) const
{
std::map<std::string,std::list<std::pair<qint64,float> > >::const_iterator it = _points.begin();
int n=0;
for(it = _points.begin();it!=_points.end() && n<i;++it,++n) ;
if(n != i)
return QString("[error]");
return QString::fromStdString(it->first) ;
}
QString RSGraphSource::displayValue(float v) const
{
return QString::number(v,'g',2) + " " + unitName() ;
}
void RSGraphSource::getCurrentValues(std::vector<float>& vals) const
{
std::map<std::string,std::list<std::pair<qint64,float> > >::const_iterator it = _points.begin();
for(it = _points.begin();it!=_points.end();++it)
vals.push_back(it->second.back().second) ;
}
void RSGraphSource::getDataPoints(int index,std::vector<QPointF>& pts) const
{
pts.clear() ;
@ -222,6 +248,9 @@ void RSGraphWidget::paintEvent(QPaintEvent *)
/* Paint the rsDHT/allDHT totals */
paintTotals();
if(_flags & RSGRAPH_FLAGS_SHOW_LEGEND)
paintLegend() ;
/* Stop the painter */
_painter->end();
}
@ -229,7 +258,7 @@ void RSGraphWidget::paintEvent(QPaintEvent *)
QColor RSGraphWidget::getColor(int i)
{
// shuffle the colors a little bit
int h = (i*44497)%359 ;
int h = (i*86243)%359 ;
return QColor::fromHsv(h,128+127*(i&1),255) ;
}
@ -430,8 +459,10 @@ void RSGraphWidget::paintScale()
scale = pixelsToValue(i * paintStep);
QString text = _source->displayValue(scale) ;
_painter->setPen(SCALE_COLOR);
_painter->drawText(QPointF(5, pos+0.5*FONT_SIZE), tr("%1 %2").arg(scale, 0, 'f', _precision_digits).arg(unit_name));
_painter->drawText(QPointF(5, pos+0.5*FONT_SIZE), text);
_painter->setPen(GRID_COLOR);
_painter->drawLine(QPointF(SCALE_WIDTH, pos), QPointF(_rec.width(), pos));
}
@ -440,3 +471,26 @@ void RSGraphWidget::paintScale()
_painter->drawLine(SCALE_WIDTH, top, SCALE_WIDTH, bottom);
}
void RSGraphWidget::paintLegend()
{
int bottom = _rec.height();
std::vector<float> vals ;
_source->getCurrentValues(vals) ;
for(uint i=0;i<vals.size();++i)
{
qreal paintStep = 4+FONT_SIZE;
qreal pos = 20+i*paintStep;
QString text = _source->displayName(i) + " (" + _source->displayValue(vals[i]) + " )";
QPen oldPen = _painter->pen();
_painter->setPen(QPen(getColor(i), Qt::SolidLine));
_painter->drawLine(QPointF(SCALE_WIDTH+10.0, pos), QPointF(SCALE_WIDTH+30.0, pos));
_painter->setPen(oldPen);
_painter->setPen(SCALE_COLOR);
_painter->drawText(QPointF(SCALE_WIDTH + 40,pos + 0.5*FONT_SIZE), text) ;
}
}

19
retroshare-gui/src/gui/common/RSGraphWidget.h
View file

@ -59,19 +59,29 @@ public:
void stop() ;
void clear() ;
virtual int n_values() const ;
virtual QString unitName() const { return "" ; }// overload to give your own unit name (KB/s, Users, etc)
int n_values() const ;
// Might be overloaded in order to show a fancy digit number with adaptive units.
// The default is to return v + unitName()
virtual QString displayValue(float v) const ;
// return the vector of last values up to date
virtual void getCurrentValues(std::vector<float>& vals) const ;
// Returns the n^th interpolated value at the given time in floating point seconds backward.
virtual void getDataPoints(int index, std::vector<QPointF>& pts) const ;
// returns the name to give to the nth entry in the graph
virtual QString displayName(int index) const ;
// Sets the maximum time for keeping values. Units=seconds.
void setCollectionTimeLimit(qint64 msecs) ;
// Sets the time period for collecting new values. Units=milliseconds.
void setCollectionTimePeriod(qint64 msecs) ;
virtual QString unitName() const =0;// overload to give your own unit name (KB/s, Users, etc)
protected slots:
// Calls the internal source for a new data points; called by the timer. You might want to overload this
// if the collection system needs it. Otherwise, the default method will call getValues()
@ -102,6 +112,7 @@ class RSGraphWidget: public QFrame
static const uint32_t RSGRAPH_FLAGS_LOG_SCALE_Y = 0x0002 ;// log scale in Y
static const uint32_t RSGRAPH_FLAGS_ALWAYS_COLLECT = 0x0004 ;// keep collecting while not displayed
static const uint32_t RSGRAPH_FLAGS_PAINT_STYLE_PLAIN = 0x0008 ;// use plain / line drawing style
static const uint32_t RSGRAPH_FLAGS_SHOW_LEGEND = 0x0010 ;// show legend in the graph
/** Bandwidth graph style. */
enum GraphStyle
@ -149,6 +160,8 @@ class RSGraphWidget: public QFrame
/** Paints the rsdht/alldht totals. */
void paintTotals();
/** Paints the scale in the graph. */
void paintLegend();
/** Paints the scale in the graph. */
void paintScale();
QColor getColor(int i) ;