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added the webui to the tarball
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SJ
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<?php
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/* Libchart - PHP chart library
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* Copyright (C) 2005-2010 Jean-Marc Tr<54>meaux (jm.tremeaux at gmail.com)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Chart composed of vertical bars.
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*
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* @author Jean-Marc Tr<54>meaux (jm.tremeaux at gmail.com)
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*/
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class VerticalBarChart extends BarChart {
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/**
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* Ratio of empty space beside the bars.
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*/
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private $emptyToFullRatio;
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/**
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* Creates a new vertical bar chart
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*
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* @param integer width of the image
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* @param integer height of the image
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*/
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public function VerticalBarChart($width = 600, $height = 250) {
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parent::BarChart($width, $height);
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$this->emptyToFullRatio = 1 / 5;
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$this->plot->setGraphPadding(new Padding(5, 30, 50, 50));
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}
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/**
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* Computes the layout.
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*/
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protected function computeLayout() {
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if ($this->hasSeveralSerie) {
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$this->plot->setHasCaption(true);
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}
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$this->plot->computeLayout();
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}
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/**
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* Print the horizontal and veritcal axis.
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*/
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protected function printAxis() {
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$minValue = $this->axis->getLowerBoundary();
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$maxValue = $this->axis->getUpperBoundary();
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$stepValue = $this->axis->getTics();
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// Get graphical obects
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$img = $this->plot->getImg();
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$palette = $this->plot->getPalette();
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$text = $this->plot->getText();
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// Get the graph area
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$graphArea = $this->plot->getGraphArea();
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// Vertical axis
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for ($value = $minValue; $value <= $maxValue; $value += $stepValue) {
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$y = $graphArea->y2 - ($value - $minValue) * ($graphArea->y2 - $graphArea->y1) / ($this->axis->displayDelta);
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imagerectangle($img, $graphArea->x1 - 3, $y, $graphArea->x1 - 2, $y + 1, $palette->axisColor[0]->getColor($img));
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imagerectangle($img, $graphArea->x1 - 1, $y, $graphArea->x1, $y + 1, $palette->axisColor[1]->getColor($img));
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$text->printText($img, $graphArea->x1 - 5, $y, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->HORIZONTAL_RIGHT_ALIGN | $text->VERTICAL_CENTER_ALIGN);
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}
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// Get first serie of a list
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$pointList = $this->getFirstSerieOfList();
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// Horizontal Axis
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$pointCount = count($pointList);
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reset($pointList);
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$columnWidth = ($graphArea->x2 - $graphArea->x1) / $pointCount;
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for ($i = 0; $i <= $pointCount; $i++) {
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$x = $graphArea->x1 + $i * $columnWidth;
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imagerectangle($img, $x - 1, $graphArea->y2 + 2, $x, $graphArea->y2 + 3, $palette->axisColor[0]->getColor($img));
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imagerectangle($img, $x - 1, $graphArea->y2, $x, $graphArea->y2 + 1, $palette->axisColor[1]->getColor($img));
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if ($i < $pointCount) {
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$point = current($pointList);
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next($pointList);
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$label = $point->getX();
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$text->printDiagonal($img, $x + $columnWidth * 1 / 3, $graphArea->y2 + 10, $this->plot->getTextColor(), $label);
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}
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}
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}
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/**
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* Print the bars.
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*/
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protected function printBar() {
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// Get the data as a list of series for consistency
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$serieList = $this->getDataAsSerieList();
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// Get graphical obects
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$img = $this->plot->getImg();
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$palette = $this->plot->getPalette();
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$text = $this->plot->getText();
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// Get the graph area
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$graphArea = $this->plot->getGraphArea();
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$barColorSet = $palette->barColorSet;
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$barColorSet->reset();
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$minValue = $this->axis->getLowerBoundary();
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$maxValue = $this->axis->getUpperBoundary();
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$stepValue = $this->axis->getTics();
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$serieCount = count($serieList);
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for ($j = 0; $j < $serieCount; $j++) {
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$serie = $serieList[$j];
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$pointList = $serie->getPointList();
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$pointCount = count($pointList);
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reset($pointList);
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// Get the next color
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$color = $barColorSet->currentColor();
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$shadowColor = $barColorSet->currentShadowColor();
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$barColorSet->next();
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$columnWidth = ($graphArea->x2 - $graphArea->x1) / $pointCount;
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for ($i = 0; $i < $pointCount; $i++) {
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$x = $graphArea->x1 + $i * $columnWidth;
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$point = current($pointList);
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next($pointList);
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$value = $point->getY();
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$ymin = $graphArea->y2 - ($value - $minValue) * ($graphArea->y2 - $graphArea->y1) / ($this->axis->displayDelta);
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// Bar dimensions
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$xWithMargin = $x + $columnWidth * $this->emptyToFullRatio;
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$columnWidthWithMargin = $columnWidth * (1 - $this->emptyToFullRatio * 2);
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$barWidth = $columnWidthWithMargin / $serieCount;
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$barOffset = $barWidth * $j;
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$x1 = $xWithMargin + $barOffset;
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$x2 = $xWithMargin + $barWidth + $barOffset - 1;
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// Text
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$text->printText($img, $x1 + $barWidth / 2 , $ymin - 5, $this->plot->getTextColor(), $value, $text->fontCondensed, $text->HORIZONTAL_CENTER_ALIGN | $text->VERTICAL_BOTTOM_ALIGN);
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// Vertical bar
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imagefilledrectangle($img, $x1, $ymin, $x2, $graphArea->y2 - 1, $shadowColor->getColor($img));
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// Prevents drawing a small box when y = 0
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if ($ymin != $graphArea->y2) {
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imagefilledrectangle($img, $x1 + 1, $ymin + 1, $x2 - 4, $graphArea->y2 - 1, $color->getColor($img));
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}
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}
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}
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}
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/**
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* Renders the caption.
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*/
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protected function printCaption() {
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// Get the list of labels
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$labelList = $this->dataSet->getTitleList();
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// Create the caption
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$caption = new Caption();
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$caption->setPlot($this->plot);
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$caption->setLabelList($labelList);
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$palette = $this->plot->getPalette();
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$barColorSet = $palette->barColorSet;
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$caption->setColorSet($barColorSet);
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// Render the caption
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$caption->render();
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}
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/**
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* Render the chart image.
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*
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* @param string name of the file to render the image to (optional)
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*/
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public function render($fileName = null) {
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// Check the data model
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$this->checkDataModel();
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$this->bound->computeBound($this->dataSet);
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$this->computeAxis();
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$this->computeLayout();
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$this->createImage();
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$this->plot->printLogo();
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$this->plot->printTitle();
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if (!$this->isEmptyDataSet(1)) {
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$this->printAxis();
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$this->printBar();
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if ($this->hasSeveralSerie) {
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$this->printCaption();
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}
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}
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$this->plot->render($fileName);
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}
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}
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?>
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