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path: root/libs/sparkline/lib/Sparkline.php
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-rw-r--r--libs/sparkline/lib/Sparkline.php494
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diff --git a/libs/sparkline/lib/Sparkline.php b/libs/sparkline/lib/Sparkline.php
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-<?php
-/*
- * Sparkline PHP Graphing Library
- * Copyright 2004 James Byers <jbyers@gmail.com>
- * http://sparkline.org
- *
- * Dual-licensed under the BSD (LICENSE-BSD.txt) and GPL (LICENSE-GPL.txt)
- * licenses.
- *
- * $Id: Sparkline.php,v 1.10 2008/03/11 19:12:49 jbyers Exp $
- *
- */
-
-define('TEXT_TOP', 1);
-define('TEXT_RIGHT', 2);
-define('TEXT_BOTTOM', 3);
-define('TEXT_LEFT', 4);
-
-define('FONT_1', 1);
-define('FONT_2', 2);
-define('FONT_3', 3);
-define('FONT_4', 4);
-define('FONT_5', 5);
-
-require_once dirname(__FILE__).'/SparklineObject.php';
-
-class Sparkline extends SparklineObject {
-
- var $imageX;
- var $imageY;
- var $imageHandle;
- var $graphAreaPx;
- var $graphAreaPt;
- var $colorList;
- var $colorBackground;
- var $lineSize;
-
- ////////////////////////////////////////////////////////////////////////////
- // constructor
- //
- function __construct($catch_errors = true) {
- parent::__construct($catch_errors);
-
- $this->colorList = array();
- $this->colorBackground = 'white';
- $this->lineSize = 1;
- $this->graphAreaPx = array(array(0, 0), array(0, 0)); // px(L, B), px(R, T)
- }
-
- ////////////////////////////////////////////////////////////////////////////
- // init
- //
- function Init($x, $y) {
- $this->Debug("Sparkline :: Init($x, $y)", DEBUG_CALLS);
-
- $this->imageX = $x;
- $this->imageY = $y;
-
- // Set functions may have already set graphAreaPx offsets; add image dimensions
- //
- $this->graphAreaPx = array(array($this->graphAreaPx[0][0],
- $this->graphAreaPx[0][1]),
- array($this->graphAreaPx[1][0] + $x - 1,
- $this->graphAreaPx[1][1] + $y - 1));
-
- $this->imageHandle = $this->CreateImageHandle($x, $y);
-
- // load default colors; set all color handles
- //
- $this->SetColorDefaults();
- while (list($k, $v) = each($this->colorList)) {
- $this->SetColorHandle($k, $this->DrawColorAllocate($k));
- }
- reset($this->colorList);
-
- return !$this->IsError();
- }
-
- ////////////////////////////////////////////////////////////////////////////
- // color, drawing setup functions
- //
- function SetColor($name, $r, $g, $b) {
- $this->Debug("Sparkline :: SetColor('$name', $r, $g, $b)", DEBUG_SET);
- $name = strtolower($name);
- $this->colorList[$name] = array('rgb' => array($r, $g, $b));
- }
-
- function SetColorHandle($name, $handle) {
- $this->Debug("Sparkline :: SetColorHandle('$name', $handle)", DEBUG_SET);
- $name = strtolower($name);
- if (array_key_exists($name, $this->colorList)) {
- $this->colorList[$name]['handle'] = $handle;
- return true;
- }
- return false;
- }
-
- function SetColorHex($name, $r, $g, $b) {
- $this->Debug("Sparkline :: SetColorHex('$name', $r, $g, $b)", DEBUG_SET);
- $this->SetColor($name, hexdec($r), hexdec($g), hexdec($b));
- }
-
- function SetColorHtml($name, $rgb) {
- $this->Debug("Sparkline :: SetColorHtml('$name', '$rgb')", DEBUG_SET);
- $rgb = trim($rgb, '#');
- $this->SetColor($name, hexdec(substr($rgb, 0, 2)), hexdec(substr($rgb, 2, 2)), hexdec(substr($rgb, 4, 2)));
- }
-
- function SetColorBackground($name) {
- $this->Debug("Sparkline :: SetColorBackground('$name')", DEBUG_SET);
- $this->colorBackground = $name;
- }
-
- function GetColor($name) {
- $name = strtolower($name);
- if (array_key_exists($name, $this->colorList)) {
- return $this->colorList[$name]['rgb'];
- } else {
- return false;
- }
- }
-
- function GetColorHandle($name) {
- $name = strtolower($name);
- if (array_key_exists($name, $this->colorList)) {
- return $this->colorList[$name]['handle'];
- } else {
- $this->Debug("Sparkline :: GetColorHandle color '$name' not set", DEBUG_WARNING);
- return false;
- }
- }
-
- function SetColorDefaults() {
- $this->Debug("Sparkline :: SetColorDefaults()", DEBUG_SET);
- $colorDefaults = array(array('aqua', '#00FFFF'),
- array('black', '#010101'), // TODO failure if 000000?
- array('blue', '#0000FF'),
- array('fuscia', '#FF00FF'),
- array('gray', '#808080'),
- array('grey', '#808080'),
- array('green', '#008000'),
- array('lime', '#00FF00'),
- array('maroon', '#800000'),
- array('navy', '#000080'),
- array('olive', '#808000'),
- array('purple', '#800080'),
- array('red', '#FF0000'),
- array('silver', '#C0C0C0'),
- array('teal', '#008080'),
- array('white', '#FFFFFF'),
- array('yellow', '#FFFF00'));
- while (list(, $v) = each($colorDefaults)) {
- if (!array_key_exists($v[0], $this->colorList)) {
- $this->SetColorHtml($v[0], $v[1]);
- }
- }
- }
-
- function SetLineSize($size) {
- $this->Debug("Sparkline :: SetLineSize($size)", DEBUG_CALLS);
- $this->lineSize = $size;
- }
-
- function GetLineSize() {
- return($this->lineSize);
- }
-
- function SetPadding($T, $R = null, $B = null, $L = null) {
- $this->Debug("Sparkline :: SetPadding($T, $R, $B, $L)", DEBUG_CALLS);
- if (null == $R &&
- null == $B &&
- null == $L) {
- $this->graphAreaPx = array(array($this->graphAreaPx[0][0] + $T,
- $this->graphAreaPx[0][1] + $T),
- array($this->graphAreaPx[1][0] - $T,
- $this->graphAreaPx[1][1] - $T));
- } else {
- $this->graphAreaPx = array(array($this->graphAreaPx[0][0] + $L,
- $this->graphAreaPx[0][1] + $B),
- array($this->graphAreaPx[1][0] - $R,
- $this->graphAreaPx[1][1] - $T));
- }
- }
-
- ////////////////////////////////////////////////////////////////////////////
- // canvas setup
- //
- function CreateImageHandle($x, $y) {
- $this->Debug("Sparkline :: CreateImageHandle($x, $y)", DEBUG_CALLS);
-
- $handle = @imagecreatetruecolor($x, $y);
- if (!is_resource($handle)) {
- $handle = @imagecreate($x, $y);
- $this->Debug('imagecreatetruecolor unavailable', DEBUG_WARNING);
- }
-
- if (!is_resource($handle)) {
- $this->Debug('imagecreate unavailable', DEBUG_WARNING);
- $this->Error('could not create image; GD imagecreate functions unavailable');
- }
-
- return $handle;
- }
-
- ////////////////////////////////////////////////////////////////////////////
- // drawing primitives
- //
- // NB: all drawing primitives use the coordinate system where (0,0)
- // corresponds to the bottom left of the image, unlike y-inverted
- // PHP gd functions
- //
- function DrawBackground($handle = false) {
- $this->Debug("Sparkline :: DrawBackground()", DEBUG_DRAW);
-
- if (!$this->IsError()) {
- if ($handle === false) $handle = $this->imageHandle;
- return $this->DrawRectangleFilled(0,
- 0,
- imagesx($handle) - 1,
- imagesy($handle) - 1,
- $this->colorBackground,
- $handle);
- }
- }
-
- function DrawColorAllocate($color, $handle = false) {
- $this->Debug("Sparkline :: DrawColorAllocate('$color')", DEBUG_DRAW);
- if (!$this->IsError() &&
- $colorRGB = $this->GetColor($color)) {
- if ($handle === false) $handle = $this->imageHandle;
- return imagecolorallocate($handle,
- $colorRGB[0],
- $colorRGB[1],
- $colorRGB[2]);
- }
- }
-
- function DrawFill($x, $y, $color, $handle = false) {
- $this->Debug("Sparkline :: DrawFill($x, $y, '$color')", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- if ($handle === false) $handle = $this->imageHandle;
- return imagefill($handle,
- $x,
- $this->TxGDYToSLY($y, $handle),
- $colorHandle);
- }
- }
-
- function DrawLine($x1, $y1, $x2, $y2, $color, $thickness = 1, $handle = false) {
- $this->Debug("Sparkline :: DrawLine($x1, $y1, $x2, $y2, '$color', $thickness)", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- if ($handle === false) $handle = $this->imageHandle;
-
- imagesetthickness($handle, $thickness);
- $result = imageline($handle,
- $x1,
- $this->TxGDYToSLY($y1, $handle),
- $x2,
- $this->TxGDYToSLY($y2, $handle),
- $colorHandle);
- imagesetthickness($handle, 1);
- return $result;
- }
- }
-
- function DrawPoint($x, $y, $color, $handle = false) {
- $this->Debug("Sparkline :: DrawPoint($x, $y, '$color')", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- if ($handle === false) $handle = $this->imageHandle;
- return imagesetpixel($handle,
- $x,
- $this->TxGDYToSLY($y, $handle),
- $colorHandle);
- }
- }
-
- function DrawRectangle($x1, $y1, $x2, $y2, $color, $handle = false) {
- $this->Debug("Sparkline :: DrawRectangle($x1, $y1, $x2, $y2 '$color')", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- if ($handle === false) $handle = $this->imageHandle;
- return imagerectangle($handle,
- $x1,
- $this->TxGDYToSLY($y1, $handle),
- $x2,
- $this->TxGDYToSLY($y2, $handle),
- $colorHandle);
- }
- }
-
- function DrawRectangleFilled($x1, $y1, $x2, $y2, $color, $handle = false) {
- $this->Debug("Sparkline :: DrawRectangleFilled($x1, $y1, $x2, $y2 '$color')", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- // NB: switch y1, y2 post conversion
- //
- if ($y1 < $y2) {
- $yt = $y1;
- $y1 = $y2;
- $y2 = $yt;
- }
-
- if ($handle === false) $handle = $this->imageHandle;
- return imagefilledrectangle($handle,
- $x1,
- $this->TxGDYToSLY($y1, $handle),
- $x2,
- $this->TxGDYToSLY($y2, $handle),
- $colorHandle);
- }
- }
-
- function DrawCircleFilled($x, $y, $diameter, $color, $handle = false) {
- $this->Debug("Sparkline :: DrawCircleFilled($x, $y, $diameter, '$color')", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- if ($handle === false) $handle = $this->imageHandle;
- return imagefilledellipse($handle,
- $x,
- $this->TxGDYToSLY($y, $handle),
- $diameter,
- $diameter,
- $colorHandle);
- }
- }
-
- function DrawText($string, $x, $y, $color, $font = FONT_1, $handle = false) {
- $this->Debug("Sparkline :: DrawText('$string', $x, $y, '$color', $font)", DEBUG_DRAW);
-
- if (!$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- // adjust for font height so x,y corresponds to bottom left of font
- //
- if ($handle === false) $handle = $this->imageHandle;
- return imagestring($handle,
- $font,
- $x,
- $this->TxGDYToSLY($y + imagefontheight($font), $handle),
- $string,
- $colorHandle);
- }
- }
-
- function DrawTextRelative($string, $x, $y, $color, $position, $padding = 2, $font = FONT_1, $handle = false) {
- $this->Debug("Sparkline :: DrawTextRelative('$string', $x, $y, '$color', $position, $font, $padding)", DEBUG_DRAW);
-
- if (!empty($string) && !$this->IsError() &&
- $colorHandle = $this->GetColorHandle($color)) {
- if ($handle === false) $handle = $this->imageHandle;
-
- // rendered text width, height
- //
- $textHeight = imagefontheight($font);
- $textWidth = imagefontwidth($font) * strlen($string);
-
- // set (pxX, pxY) based on position and point
- //
- switch($position) {
- case TEXT_TOP:
- $x = $x - round($textWidth / 2);
- $y = $y + $padding;
- break;
-
- case TEXT_RIGHT:
- $x = $x + $padding;
- $y = $y - round($textHeight / 2);
- break;
-
- case TEXT_BOTTOM:
- $x = $x - round($textWidth / 2);
- $y = $y - $padding - $textHeight;
- break;
-
- case TEXT_LEFT:
- default:
- $x = $x - $padding - $textWidth;
- $y = $y - round($textHeight / 2);
- break;
- }
-
- // truncate bounds based on string size in pixels, image bounds
- // order: TRBL
- //
- $y = min($y, $this->GetImageHeight() - $textHeight);
- $x = min($x, $this->GetImageWidth() - $textWidth);
- $y = max($y, 0);
- $x = max($x, 0);
-
- return $this->DrawText($string,
- $x,
- $y,
- $color,
- $font,
- $handle);
- }
- }
-
- function DrawImageCopyResampled($dhandle, $shandle, $dx, $dy, $sx, $sy, $dw, $dh, $sw, $sh) {
- $this->Debug("Sparkline :: DrawImageCopyResampled($dhandle, $shandle, $dx, $dy, $sx, $sy, $dw, $dh, $sw, $sh)", DEBUG_DRAW);
- if (!$this->IsError()) {
- return imagecopyresampled($dhandle, // dest handle
- $shandle, // src handle
- $dx, $dy, // dest x, y
- $sx, $sy, // src x, y
- $dw, $dh, // dest w, h
- $sw, $sh); // src w, h
- }
- }
-
- ////////////////////////////////////////////////////////////////////////////
- // coordinate system functions
- // world coordinates are referenced as points or pt
- // graph coordinates are referenced as pixels or px
- // sparkline inverts GD Y pixel coordinates; the bottom left of the
- // image rendering area is px(0,0)
- // all coordinate transformation functions are prefixed with Tx
- // all coordinate transformation functions depend on a valid image handle
- // and will only return valid results after all Set* calls are performed
- //
- function TxGDYToSLY($gdY, $handle) {
- return imagesy($handle) - 1 - $gdY;
- }
-
- function TxPxToPt($pxX, $pxY, $handle) {
- // TODO; must occur after data series conversion
- }
-
- function TxPtToPx($ptX, $ptY, $handle) {
- // TODO; must occur after data series conversion
- }
-
- function GetGraphWidth() {
- return $this->graphAreaPx[1][0] - $this->graphAreaPx[0][0];
- }
-
- function GetGraphHeight() {
- return $this->graphAreaPx[1][1] - $this->graphAreaPx[0][1];
- }
-
- function GetImageWidth() {
- return $this->imageX;
- }
-
- function GetImageHeight() {
- return $this->imageY;
- }
-
- ////////////////////////////////////////////////////////////////////////////
- // image output
- //
- function Output($file = '') {
- $this->Debug("Sparkline :: Output($file)", DEBUG_CALLS);
-
- if ($this->IsError()) {
- $colorError = imagecolorallocate($this->imageHandle, 0xFF, 0x00, 0x00);
- imagestring($this->imageHandle,
- 1,
- ($this->imageX / 2) - (5 * imagefontwidth(1) / 2),
- ($this->imageY / 2) - (imagefontheight(1) / 2),
- "ERROR",
- $colorError);
- }
-
- if ($file == '') {
- header('Content-type: image/png');
- imagepng($this->imageHandle);
- } else {
- imagepng($this->imageHandle, $file);
- }
-
- $this->Debug('Sparkline :: Output - total execution time: ' . round($this->microTimer() - $this->startTime, 4) . ' seconds', DEBUG_STATS);
- }
-
- function OutputToFile($file) {
- $this->Output($file);
- }
-
- function OutputToDataURI() {
- ob_start(null, 4096);
- $this->Output();
- return "data:image/png;base64,".base64_encode(ob_get_clean());
- }
-}
-
-?>
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