/**
* @return Chart
*/
public function buildGraph()
{
$graph = new Chart($this->width, $this->height);
$graph->SetScale("datlin");
$graph->title->Set($this->title);
$graph->subtitle->Set($this->description);
$colors = $graph->getThemedColors();
$graph->xaxis->SetTickLabels($this->burndown_data->getHumanReadableDates());
$remaining_effort = new LinePlot($this->burndown_data->getRemainingEffort());
$remaining_effort->SetColor($colors[1] . ':0.7');
$remaining_effort->SetWeight(2);
$remaining_effort->SetLegend('Remaining effort');
$remaining_effort->mark->SetType(MARK_FILLEDCIRCLE);
$remaining_effort->mark->SetColor($colors[1] . ':0.7');
$remaining_effort->mark->SetFillColor($colors[1]);
$remaining_effort->mark->SetSize(3);
$graph->Add($remaining_effort);
$ideal_burndown = new LinePlot($this->burndown_data->getIdealEffort());
$ideal_burndown->SetColor($colors[0] . ':1.25');
$ideal_burndown->SetLegend('Ideal Burndown');
$graph->Add($ideal_burndown);
return $graph;
}
public function getBurndownData(Tracker_Artifact $artifact, User $user, $start_date, $duration)
{
$field = $this->getBurndownRemainingEffortField($artifact, $user);
$time_period = new Tracker_Chart_Data_BurndownTimePeriod($start_date, $duration);
$burndown_data = new Tracker_Chart_Data_Burndown($time_period);
$tonight = mktime(23, 59, 59, date('n'), date('j'), date('Y'));
foreach ($time_period->getDayOffsets() as $day_offset) {
$timestamp = strtotime("+{$day_offset} day 23 hours 59 minutes 59 seconds", $start_date);
if ($timestamp <= $tonight) {
$remaining_effort = $field->getComputedValue($user, $artifact, $timestamp);
$burndown_data->pushRemainingEffort($remaining_effort);
}
}
return $burndown_data;
}
public function itHasNoIdealBurndown()
{
$burndown_data = new Tracker_Chart_Data_Burndown($this->time_period);
$this->assertIdentical($burndown_data->getIdealEffort(), array(0, 0, 0));
}
private function addRemainingEffortData(Tracker_Chart_Data_Burndown $burndown_data, TimePeriod $time_period, Tracker_Artifact $artifact, PFUser $user, $start_date)
{
$field = $this->getBurndownRemainingEffortField($artifact, $user);
if (!$field) {
return;
}
$tonight = mktime(23, 59, 59, date('n'), date('j'), date('Y'));
foreach ($time_period->getDayOffsets() as $day_offset) {
$timestamp = strtotime("+{$day_offset} day 23 hours 59 minutes 59 seconds", $start_date);
if ($timestamp <= $tonight) {
$remaining_effort = $this->getCachedValueOrComputeValue($field, $user, $artifact, $timestamp);
$burndown_data->addEffortAt($day_offset, $remaining_effort);
}
}
}
public function burndown_data()
{
return $this->burndown_data->getJsonRepresentation();
}
