File Source for BarPlot.class.php

<?php
/*
* This work is hereby released into the Public Domain.
* To view a copy of the public domain dedication,
* visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
* Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
*
*/
require_once dirname(__FILE__)."/Plot.class.php";
/**
* BarPlot
*
* @package linea21.externals
* @subpackage artichow
*/
class awBarPlot extends awPlot {
/**
* Labels on your bar plot
*
* @var Label
*/
var $label;
/**
* Bar plot identifier
*
* @var int
*/
var $identifier;
/**
* Bar plot number
*
* @var int
*/
var $number;
/**
* Bar plot depth
*
* @var int
*/
var $depth;
/**
* For moving bars
*
* @var int
*/
var $move;
/**
* Bars shadow
*
* @var Shadow
*/
var $barShadow;
/**
* Bars border
*
* @var Border
*/
var $barBorder;
/**
* Bars padding
*
* @var Side
*/
var $barPadding;
/**
* Bars space
*
* @var int
*/
var $barSpace = 0;
/**
* Bars background
*
* @var Color, Gradient
*/
var $barBackground;
/**
* Construct a new awBarPlot
*
* @param array $values Some numeric values for Y axis
* @param int $identifier Plot identifier
* @param int $number Bar plot number
* @param int $depth Bar plot depth in pixels
*/
function awBarPlot($values, $identifier = 1, $number = 1, $depth = 0) {
parent::awPlot();
$this->label = new awLabel;
$this->barPadding = new awSide(0.08, 0.08, 0, 0);
$this->barShadow = new awShadow(SHADOW_RIGHT_TOP);
$this->barBorder = new awBorder;
$this->setValues($values);
$this->identifier = (int)$identifier;
$this->number = (int)$number;
$this->depth = (int)$depth;
$this->move = new awSide;
// Hide vertical grid
$this->grid->hideVertical(TRUE);
}
/**
* Change bars padding
* This method is not compatible with awBarPlot::setBarPadding()
*
* @param float $left Left padding (between 0 and 1)
* @param float $right Right padding (between 0 and 1)
*/
function setBarPadding($left = NULL, $right = NULL) {
$this->barPadding->set($left, $right);
}
/**
* Change bars size
* This method is not compatible with awBarPlot::setBarPadding()
*
* @param int $width Bars size (between 0 and 1)
*/
function setBarSize($size) {
$padding = (1 - $size) / 2;
$this->barPadding->set($padding, $padding);
}
/**
* Move bars
*
* @param int $x
* @param int $y
*/
function move($x, $y) {
$this->move->set($x, NULL, $y, NULL);
}
/**
* Change bars space
*
* @param int $space Space in pixels
*/
function setBarSpace($space) {
$this->barSpace = (int)$space;
}
/**
* Change line background color
*
* @param $color
*/
function setBarColor($color) {
$this->barBackground = $color;
}
/**
* Change line background gradient
*
* @param $gradient
*/
function setBarGradient($gradient) {
$this->barBackground = $gradient;
}
/**
* Get the line thickness
*
* @return int
*/
function getLegendLineThickness() {
}
/**
* Get the line type
*
* @return int
*/
function getLegendLineStyle() {
}
/**
* Get the color of line
*
* @return Color
*/
function getLegendLineColor() {
}
/**
* Get the background color or gradient of an element of the component
*
* @return Color, Gradient
*/
function getLegendBackground() {
return $this->barBackground;
}
/**
* Get a mark object
*
* @return Mark
*/
function getLegendMark() {
}
function drawComponent($driver, $x1, $y1, $x2, $y2, $aliasing) {
$count = count($this->datay);
$max = $this->getRealYMax(NULL);
$min = $this->getRealYMin(NULL);
// Find zero for bars
if($this->xAxisZero and $min <= 0 and $max >= 0) {
$zero = 0;
} else if($max < 0) {
$zero = $max;
} else {
$zero = $min;
}
// Get base position
$zero = awAxis::toPosition($this->xAxis, $this->yAxis, new awPoint(0, $zero));
// Distance between two values on the graph
$distance = $this->xAxis->getDistance(0, 1);
// Compute paddings
$leftPadding = $this->barPadding->left * $distance;
$rightPadding = $this->barPadding->right * $distance;
$padding = $leftPadding + $rightPadding;
$space = $this->barSpace * ($this->number - 1);
$barSize = ($distance - $padding - $space) / $this->number;
$barPosition = $leftPadding + $barSize * ($this->identifier - 1);
for($key = 0; $key < $count; $key++) {
$value = $this->datay[$key];
if($value !== NULL) {
$position = awAxis::toPosition(
$this->xAxis,
$this->yAxis,
new awPoint($key, $value)
);
$barStart = $barPosition + ($this->identifier - 1) * $this->barSpace + $position->x;
$barStop = $barStart + $barSize;
$t1 = min($zero->y, $position->y);
$t2 = max($zero->y, $position->y);
if(round($t2 - $t1) == 0) {
continue;
}
$p1 = new awPoint(
round($barStart) + $this->depth + $this->move->left,
round($t1) - $this->depth + $this->move->top
);
$p2 = new awPoint(
round($barStop) + $this->depth + $this->move->left,
round($t2) - $this->depth + $this->move->top
);
$this->drawBar($driver, $p1, $p2);
}
}
// Draw labels
foreach($this->datay as $key => $value) {
if($value !== NULL) {
$position = awAxis::toPosition(
$this->xAxis,
$this->yAxis,
new awPoint($key, $value)
);
$point = new awPoint(
$barPosition + ($this->identifier - 1) * $this->barSpace + $position->x + $barSize / 2 + 1 + $this->depth,
$position->y - $this->depth
);
$this->label->draw($driver, $point, $key);
}
}
}
function getXAxisNumber() {
return count($this->datay) + 1;
}
// ça bidouille à fond ici !
function getXMax() {
return array_max($this->datax) + 1;
}
function getXCenter() {
return TRUE;
}
function drawBar($driver, $p1, $p2) {
// Draw shadow
$this->barShadow->draw(
$driver,
$p1,
$p2,
SHADOW_OUT
);
if(abs($p2->y - $p1->y) > 1) {
$this->barBorder->rectangle(
$driver,
$p1,
$p2
);
if($this->barBackground !== NULL) {
$size = $this->barBorder->visible() ? 1 : 0;
$b1 = $p1->move($size, $size);
$b2 = $p2->move(-1 * $size, -1 * $size);
// Draw background
$driver->filledRectangle(
$this->barBackground,
new awLine($b1, $b2)
);
}
}
}
}
registerClass('BarPlot');
?>

Source for file BarPlot.class.php