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Diffstat (limited to 'src/libchart/classes/Chart.php')
| -rw-r--r-- | src/libchart/classes/Chart.php | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/src/libchart/classes/Chart.php b/src/libchart/classes/Chart.php new file mode 100644 index 0000000..639eabd --- /dev/null +++ b/src/libchart/classes/Chart.php @@ -0,0 +1,213 @@ +<?php + /** Libchart - PHP chart library + * + * Copyright (C) 2005-2006 Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + + /*! \mainpage Libchart + * + * This is the reference API, automatically compiled by <a href="http://www.stack.nl/~dimitri/doxygen/">Doxygen</a>. + * You can find here information that is not covered by the <a href="../samplecode/">tutorial</a>. + * + */ + + /** + * Base chart class + * + * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com) + * @abstract + */ + + class Chart + { + /** + * Creates a new chart + * + * @access protected + * @param integer width of the image + * @param integer height of the image + */ + + function chart($width, $height) + { + $this->width = $width; + $this->height = $height; + + $this->reset(); + } + + /** + * Initialize the chart + * + * @access private + */ + + function reset() + { + $this->text = new Text(); + $this->point = array(); + + unset($this->lowerBound); + unset($this->upperBound); + + $this->setTitle("Untitled chart"); + $this->setLogo(dirname(__FILE__) . "/../images/PoweredBy.png"); + } + + /** + * Add a new sampling point to the chart + * + * @access public + * @param Point sampling point to add + */ + + function addPoint($point) + { + array_push($this->point, $point); + } + + /** + * Sets the title + * + * @access public + * @param string new title + */ + + function setTitle($title) + { + $this->title = $title; + } + + /** + * Sets the logo image file name + * + * @access public + * @param string new logo image file name + */ + + function setLogo($logoFileName) + { + $this->logoFileName = $logoFileName; + } + + /** + * Print the title to the image + * + * @access private + */ + + function printTitle() + { + $this->text->printCentered($this->img, ($this->labelMarginTop + $this->margin) / 2, $this->textColor, $this->title, $this->text->fontCondensedBold); + } + + /** + * Print the logo image to the image + * + * @access private + */ + + function printLogo() + { + @$logoImage = imageCreateFromPNG($this->logoFileName); + + if($logoImage) + imagecopymerge($this->img, $logoImage, 2*$this->margin, $this->margin, 0, 0, imagesx($logoImage), imagesy($logoImage), 100); + } + + /** + * Set the outer margin + * + * @access public + * @param integer outer margin value in pixels + */ + + function setMargin($margin) + { + $this->margin = $margin; + } + + /** + * Set the label left margin + * + * @access public + * @param integer label left margin value in pixels + */ + + function setLabelMarginLeft($labelMarginLeft) + { + $this->labelMarginLeft = $labelMarginLeft; + } + + /** + * Set the label right margin + * + * @access public + * @param integer label right margin value in pixels + */ + + function setLabelMarginRight($labelMarginRight) + { + $this->labelMarginRight = $labelMarginRight; + } + + /** + * Set the label top margin + * + * @access public + * @param integer label top margin value in pixels + */ + + function setLabelMarginTop($labelMarginTop) + { + $this->labelMarginTop = $labelMarginTop; + } + + /** + * Set the label bottom margin + * + * @access public + * @param integer label bottom margin value in pixels + */ + + function setLabelMarginBottom($labelMarginBottom) + { + $this->labelMarginBottom = $labelMarginBottom; + } + + /** + * Creates and initialize the image + * + * @access protected + */ + + function createImage() + { + $this->img = imagecreatetruecolor($this->width, $this->height); + + $this->primitive = new Primitive($this->img); + + $this->backGroundColor = new Color(255, 255, 255); + $this->textColor = new Color(0, 0, 0); + + // White background + + imagefilledrectangle($this->img, 0, 0, $this->width - 1, $this->height - 1, $this->backGroundColor->getColor($this->img)); + } + } +?> |