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diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -2664,6 +2664,7 @@
'PhabricatorChartAxis' => 'applications/fact/chart/PhabricatorChartAxis.php',
'PhabricatorChartDataQuery' => 'applications/fact/chart/PhabricatorChartDataQuery.php',
'PhabricatorChartDataset' => 'applications/fact/chart/PhabricatorChartDataset.php',
+ 'PhabricatorChartDisplayData' => 'applications/fact/chart/PhabricatorChartDisplayData.php',
'PhabricatorChartEngine' => 'applications/fact/engine/PhabricatorChartEngine.php',
'PhabricatorChartFunction' => 'applications/fact/chart/PhabricatorChartFunction.php',
'PhabricatorChartFunctionArgument' => 'applications/fact/chart/PhabricatorChartFunctionArgument.php',
@@ -8681,6 +8682,7 @@
'PhabricatorChartAxis' => 'Phobject',
'PhabricatorChartDataQuery' => 'Phobject',
'PhabricatorChartDataset' => 'Phobject',
+ 'PhabricatorChartDisplayData' => 'Phobject',
'PhabricatorChartEngine' => 'Phobject',
'PhabricatorChartFunction' => 'Phobject',
'PhabricatorChartFunctionArgument' => 'Phobject',
diff --git a/src/applications/fact/chart/PhabricatorChartDataset.php b/src/applications/fact/chart/PhabricatorChartDataset.php
--- a/src/applications/fact/chart/PhabricatorChartDataset.php
+++ b/src/applications/fact/chart/PhabricatorChartDataset.php
@@ -66,11 +66,12 @@
);
}
- final public function getWireFormat(PhabricatorChartDataQuery $data_query) {
- return $this->newWireFormat($data_query);
+ final public function getChartDisplayData(
+ PhabricatorChartDataQuery $data_query) {
+ return $this->newChartDisplayData($data_query);
}
- abstract protected function newWireFormat(
+ abstract protected function newChartDisplayData(
PhabricatorChartDataQuery $data_query);
diff --git a/src/applications/fact/chart/PhabricatorChartDisplayData.php b/src/applications/fact/chart/PhabricatorChartDisplayData.php
new file mode 100644
--- /dev/null
+++ b/src/applications/fact/chart/PhabricatorChartDisplayData.php
@@ -0,0 +1,27 @@
+<?php
+
+final class PhabricatorChartDisplayData
+ extends Phobject {
+
+ private $wireData;
+ private $range;
+
+ public function setWireData(array $wire_data) {
+ $this->wireData = $wire_data;
+ return $this;
+ }
+
+ public function getWireData() {
+ return $this->wireData;
+ }
+
+ public function setRange(PhabricatorChartInterval $range) {
+ $this->range = $range;
+ return $this;
+ }
+
+ public function getRange() {
+ return $this->range;
+ }
+
+}
diff --git a/src/applications/fact/chart/PhabricatorChartStackedAreaDataset.php b/src/applications/fact/chart/PhabricatorChartStackedAreaDataset.php
--- a/src/applications/fact/chart/PhabricatorChartStackedAreaDataset.php
+++ b/src/applications/fact/chart/PhabricatorChartStackedAreaDataset.php
@@ -5,7 +5,8 @@
const DATASETKEY = 'stacked-area';
- protected function newWireFormat(PhabricatorChartDataQuery $data_query) {
+ protected function newChartDisplayData(
+ PhabricatorChartDataQuery $data_query) {
$functions = $this->getFunctions();
$function_points = array();
@@ -93,6 +94,9 @@
ksort($function_points[$function_idx]);
}
+ $range_min = null;
+ $range_max = null;
+
$series = array();
$baseline = array();
foreach ($function_points as $function_idx => $points) {
@@ -117,6 +121,16 @@
if (isset($raw_points[$function_idx][$x])) {
$raw_points[$function_idx][$x]['y1'] = $y1;
}
+
+ if ($range_min === null) {
+ $range_min = $y0;
+ }
+ $range_min = min($range_min, $y0, $y1);
+
+ if ($range_max === null) {
+ $range_max = $y1;
+ }
+ $range_max = max($range_max, $y0, $y1);
}
$series[] = $bounds;
@@ -147,7 +161,9 @@
'labels' => $wire_labels,
);
- return $result;
+ return id(new PhabricatorChartDisplayData())
+ ->setWireData($result)
+ ->setRange(new PhabricatorChartInterval($range_min, $range_max));
}
diff --git a/src/applications/fact/engine/PhabricatorChartRenderingEngine.php b/src/applications/fact/engine/PhabricatorChartRenderingEngine.php
--- a/src/applications/fact/engine/PhabricatorChartRenderingEngine.php
+++ b/src/applications/fact/engine/PhabricatorChartRenderingEngine.php
@@ -145,20 +145,22 @@
->setLimit(2000);
$wire_datasets = array();
+ $ranges = array();
foreach ($datasets as $dataset) {
- $wire_datasets[] = $dataset->getWireFormat($data_query);
+ $display_data = $dataset->getChartDisplayData($data_query);
+
+ $ranges[] = $display_data->getRange();
+ $wire_datasets[] = $display_data->getWireData();
}
- // TODO: Figure these out from the datasets again.
- $y_min = -2;
- $y_max = 20;
+ $range = $this->getRange($ranges);
$chart_data = array(
'datasets' => $wire_datasets,
'xMin' => $domain->getMin(),
'xMax' => $domain->getMax(),
- 'yMin' => $y_min,
- 'yMax' => $y_max,
+ 'yMin' => $range->getMin(),
+ 'yMax' => $range->getMax(),
);
return $chart_data;
@@ -186,4 +188,22 @@
return $domain;
}
+ private function getRange(array $ranges) {
+ $range = PhabricatorChartInterval::newFromIntervalList($ranges);
+
+ // Start the Y axis at 0 unless the chart has negative values.
+ $min = $range->getMin();
+ if ($min === null || $min >= 0) {
+ $range->setMin(0);
+ }
+
+ // If there's no maximum value, just pick a plausible default.
+ $max = $range->getMax();
+ if ($max === null) {
+ $range->setMax($range->getMin() + 100);
+ }
+
+ return $range;
+ }
+
}

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