DefaultTimeAxisDecorator.cc
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/*
* DefaultTimeAxisDecorator.cc
*
* Created on: Dec 17, 2013
* Author: amdadev
*/
#include "DefaultTimeAxisDecorator.hh"
#include "plplot/plplot.h"
#include "plplot/plstream.h"
#include "PlotLogger.hh"
#include "TimeAxis.hh"
#include "TimePlot.hh"
#include "PlPlotUtil.hh"
namespace plot {
void DefaultTimeAxisDecorator::updatePlotArea( PanelPlotOutput* pplot_,Axis* axis_, const Bounds& /*panelBounds_*/, Bounds& bounds_){
TimeAxis* pAxis = static_cast<TimeAxis*> (axis_);
Font font(pplot_->_panel->getFont());
PlPlotUtil::setPlFont(font);
CharSize lCharSizePanel = PlPlotUtil::getCharacterSizeInPlPage(pplot_->_panel->_page);
double panelCharHeight = lCharSizePanel.second;
double lBottomSpace = 0;
if (pAxis->_visible == true) {
if (pAxis->_position == PlotCommon::Position::POS_TOP) {
// When X axis is at top edge of plot area, there is only room for tick.
// So add space for start date
lBottomSpace += panelCharHeight * 2;
} else {
// Add space to have start date visible.
// Otherwise, space was calculated to draw legend and so space is sufficient to draw start date.
// Only if panel font size is not twice time high than legend font size.
if ((pAxis->_showLegend == true) &&
(pAxis->_showTickMark == true) &&
(pAxis->_legend.isEmpty() == true)) {
lBottomSpace += panelCharHeight * 2;
}
}
} else {
// when axis is not visible PanelPlotOutput set at least one character height by default.
// So we just have to push two character height (for text and space bottom).
lBottomSpace = panelCharHeight * 2;
}
// update y and height; x and width are left unchanged.
bounds_._y += lBottomSpace;
bounds_._height -= lBottomSpace;
}
void DefaultTimeAxisDecorator::configure
(
PanelPlotOutput* pplot_,
Axis* axis_,
double start_,
double stop_,
std::map<std::string, ParameterData> *pParameterValues
)
{
_pParameterValues = pParameterValues;
// retrieve time axis
TimeAxis* timeAxis = static_cast<TimeAxis*> (axis_);
// configure x axis range
timeAxis->setRange( start_, stop_ );
// store plplot format
setPlFormat( getPlTimeFormat(
timeAxis->_timeFormat,
timeAxis->getRange().getMin(),
timeAxis->getRange().getMax(),
getMajorTickNumber( timeAxis,
timeAxis->getRange().getMin(),
timeAxis->getRange().getMax())) );
// install label generator
installLabelGenerator(pplot_, timeAxis);
}
void DefaultTimeAxisDecorator::draw( PanelPlotOutput* /*pplot_*/,Axis* /*axis_*/, std::shared_ptr<plstream> /*pls_*/){
// nothing to draw...
}
void DefaultTimeAxisDecorator::installLabelGenerator(PanelPlotOutput* /*pplot_*/, TimeAxis* timeAxis_) {
// setup a custom labeler for time axis, give it time format and
// min time to not display this min time on axis label
std::ostringstream data;
data << std::setprecision(10) << std::min(timeAxis_->getRange().getMin(), timeAxis_->getRange().getMax()) << "#"
<< getPlFormat();
_timeFormat->assign(data.str());
timeAxis_->_labelGenerator->_data = _timeFormat.get();
if (timeAxis_->_showTickMark == true) {
timeAxis_->_labelGenerator->_function = generateDefaultTimeLabel;
} else {
timeAxis_->_labelGenerator->_function = generateNoTimeLabel;
}
}
/***************************** EXTERNAL METHODS ********************************/
void generateDefaultTimeLabel(PLINT axis, PLFLT value, char *label, PLINT length,
PLPointer data) {
if (axis == PL_X_AXIS) {
// get time format and min value
// if value equals min, display an empty string
// otherwise, format time and display formatted time
std::string* dataStr =(std::string*) data;
if( dataStr == nullptr ){
std::cout << "WARNING NO FORMAT FOUND !!!" << std::endl;
}
size_t sharpIndex = dataStr->find("#");
double min = atof(dataStr->substr(0, sharpIndex).c_str());
if (value == min) {
// do not display min value label
// but display title :
snprintf(label, length, "%s", "");
} else {
// display formatted time
std::string timeFormatstr = dataStr->substr(sharpIndex + 1).c_str();
char *timeFormat = new char[timeFormatstr.length() + 1];
strcpy(timeFormat, timeFormatstr.c_str());
if (TimePlot::qsasconfig == NULL) {
configqsas(1. / 86400., 0., 0., 0x0, 1, 1970, 0, 1, 0, 0, 0.,
&TimePlot::qsasconfig);
}
char formattedTime[40];
strfqsas(formattedTime, 40, timeFormat, (double) value, TimePlot::qsasconfig);
delete[] timeFormat;
snprintf(label, length, "%s", formattedTime);
}
}
}
void generateNoTimeLabel(PLINT /*axis*/, PLFLT /*value*/, char *label, PLINT /*length*/, PLPointer /*data*/) {
// Builds an empty Time label
label [0] = 0;
}
} /* namespace plot */