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added subclassing

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This commit is contained in:
Joshua Seigler 2016-06-30 23:41:19 -04:00
parent 04369adbb3
commit dcc0459d93
3 changed files with 75 additions and 68 deletions
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1
.gitignore vendored
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@ -4,3 +4,4 @@
/bower_components/ /bower_components/
/node_modules/ /node_modules/
.brackets.json .brackets.json
/vendor/

69
src/NeatCharts/LineChart.php
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@ -1,70 +1,6 @@
<?php <?php
namespace NeatCharts { namespace NeatCharts {
class LineChart { class LineChart extends NeatChart {
private $options = [
'width' => 800,
'height' => 250,
'lineColor' => '#000',
'labelColor' => '#000',
'smoothed' => false,
'fontSize' => 15
];
private $width;
private $height;
private $output;
private $xMin;
private $xMax;
private $xRange;
private $yMin;
private $yMax;
private $yRange;
private $padding = ['top'=>10, 'right'=>10, 'bottom'=>10, 'left'=>10];
private function arrayGet($array, $key, $default = NULL)
{
return isset($array[$key]) ? $array[$key] : $default;
}
private function labelFormat($float, $places, $minPlaces = 0) {
$value = number_format($float, max($minPlaces, $places));
// add a trailing space if there's no decimal
return (strpos($value, '.') === false ? $value . '.' : $value);
}
/* Transform data coords to chart coords */
/* Transform data coords to chart coords */
private function transformX($x) {
return round(
($x - $this->xMin) / $this->xRange * $this->width
, 2);
}
private function transformY($y) {
return round(
// SVG has y axis reversed, 0 is at the top
($this->yMax - $y) / $this->yRange * $this->height
, 2);
}
private function getPrecision($value) { // thanks http://stackoverflow.com/a/21788335/5402566
if (!is_numeric($value)) { return false; }
$decimal = $value - floor($value); //get the decimal portion of the number
if ($decimal == 0) { return 0; } //if it's a whole number
$precision = strlen(trim(number_format($decimal,10),'0')) - 1; //-2 to account for '0.'
return $precision;
}
public function __construct($chartData, $options = []) {
$this->setOptions($options);
$this->setData($chartData);
}
public function setOptions($options) {
$this->options = array_replace($this->options, $options);
$this->padding['left'] = $this->options['fontSize'] * 5;
$this->padding['top'] = $this->padding['bottom'] = $this->options['fontSize'];
}
public function setData($chartData) { public function setData($chartData) {
// we assume $chartData is sorted by key and keys and values are all numeric // we assume $chartData is sorted by key and keys and values are all numeric
$previousX = $previousY = null; $previousX = $previousY = null;
@ -263,8 +199,5 @@ namespace NeatCharts {
</g> </g>
</svg>'; </svg>';
} }
public function render() {
return $this->output;
}
} }
} }

73
src/NeatCharts/NeatChart.php Normal file
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@ -0,0 +1,73 @@
<?php
namespace NeatCharts {
abstract class NeatChart {
protected $options = [
'width' => 800,
'height' => 250,
'lineColor' => '#000',
'labelColor' => '#000',
'smoothed' => false,
'fontSize' => 15
];
protected $width;
protected $height;
protected $output;
protected $xMin;
protected $xMax;
protected $xRange;
protected $yMin;
protected $yMax;
protected $yRange;
protected $padding = ['top'=>10, 'right'=>10, 'bottom'=>10, 'left'=>10];
protected function arrayGet($array, $key, $default = NULL)
{
return isset($array[$key]) ? $array[$key] : $default;
}
protected function labelFormat($float, $places, $minPlaces = 0) {
$value = number_format($float, max($minPlaces, $places));
// add a trailing space if there's no decimal
return (strpos($value, '.') === false ? $value . '.' : $value);
}
/* Transform data coords to chart coords */
/* Transform data coords to chart coords */
protected function transformX($x) {
return round(
($x - $this->xMin) / $this->xRange * $this->width
, 2);
}
protected function transformY($y) {
return round(
// SVG has y axis reversed, 0 is at the top
($this->yMax - $y) / $this->yRange * $this->height
, 2);
}
protected function getPrecision($value) { // thanks http://stackoverflow.com/a/21788335/5402566
if (!is_numeric($value)) { return false; }
$decimal = $value - floor($value); //get the decimal portion of the number
if ($decimal == 0) { return 0; } //if it's a whole number
$precision = strlen(trim(number_format($decimal,10),'0')) - 1; //-2 to account for '0.'
return $precision;
}
public function __construct($chartData, $options = []) {
$this->setOptions($options);
$this->setData($chartData);
}
public function setOptions($options) {
$this->options = array_replace($this->options, $options);
$this->padding['left'] = $this->options['fontSize'] * 5;
$this->padding['top'] = $this->padding['bottom'] = $this->options['fontSize'];
}
public abstract function setData($chartData);
public function render() {
return $this->output;
}
}
}