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Diffstat (limited to 'admin/images/phpBarGraph.php')
| -rw-r--r-- | admin/images/phpBarGraph.php | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/admin/images/phpBarGraph.php b/admin/images/phpBarGraph.php new file mode 100644 index 000000000..7b5fba243 --- /dev/null +++ b/admin/images/phpBarGraph.php @@ -0,0 +1,391 @@ +<?php +// +-----------------------------------------------------------------------+ +// | phpBarGraph.php | +// +-----------------------------------------------------------------------+ +// | application : PhpWebGallery <http://phpwebgallery.net> | +// | branch : BSF (Best So Far) | +// +-----------------------------------------------------------------------+ +// | file : $RCSfile$ +// | last update : $Date$ +// | last modifier : $Author$ +// | revision : $Revision$ +// +-----------------------------------------------------------------------+ +// | This program is free software; you can redistribute it and/or modify | +// | it under the terms of the GNU General Public License as published by | +// | the Free Software Foundation | +// | | +// | This program 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 | +// | General Public License for more details. | +// | | +// | You should have received a copy of the GNU General Public License | +// | along with this program; if not, write to the Free Software | +// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | +// | USA. | +// +-----------------------------------------------------------------------+ + +// Original PhpBarGraph Version 2.3 +// Written By TJ Hunter (tjhunter@ruistech.com) +// http://www.ruistech.com/phpBarGraph +// This class has been adapted to fill phpWG requirements + +class PhpBarGraph +{ + /* -------------------------------- */ + /* Preference Variables */ + /* -------------------------------- */ + var $_debug; + var $_image; // The image to print the bargraph too. + var $_x; // The starting column of the bargraph + var $_y; // The starting row of the bargraph + var $_width; // The width of the bargraph + var $_height; // The height of the bargraph + var $_startBarColorHex; // The top color of the bargraph + var $_endBarColorHex; // The bottom color of the bargraph + var $_lineColorHex; // The color of the lines and text + var $_barSpacing; // The spacing width in between each bar + var $_numOfValueTicks; // The number of horizontal rule ticks + var $_values; // An array of arrays of the values of each bargraph and it's label + var $_showLabels; // If true, print the labels to the image + var $_showValues; // If true, print the values to the image + var $_showBarBorder; // If true, draws a box of around each bar + var $_showFade; // If true, draws each bar with a gradient + var $_showOuterBox; // If true, draws the box on the outside of the bargraph + + /* -------------------------------- */ + /* Private Variables */ + /* -------------------------------- */ + var $_topMargin; + var $_bottomMargin; + var $_leftMargin; + var $_rightMargin; + var $_barWidth; + var $_minBarHeight; + var $_maxBarHeight; + var $_realMinBarHeight; + var $_realMaxBarHeight; + var $_buffer; + + function PhpBarGraph() + { + $this->_debug = false; + $this->_values = array(); + $this->_startBarColorHex = "0000ff"; + $this->_endBarColorHex = "ffffff"; + $this->_lineColorHex = "000000"; + $this->_barSpacing = 10; + $this->_numOfValueTicks = 4; + $this->_buffer = .5; + $this->_showLabels = true; + $this->_showValues = true; + $this->_showBarBorder = true; + $this->_showFade = true; + $this->_showOuterBox = true; + } + + function AddValue($labelName, $theValue) + { + array_push($this->_values, array("label" => $labelName, "value" => $theValue)); + } + + function SetDebug($debug) + { + $this->_debug = $debug; + } + + function SetX($x) + { + $this->_x = $x; + } + + function SetY($y) + { + $this->_y = $y; + } + + function SetWidth($width) + { + $this->_width = $width; + } + + function SetHeight($height) + { + $this->_height = $height; + } + + function SetStartBarColor($color) + { + $this->_startBarColorHex = $color; + } + + function SetEndBarColor($color) + { + $this->_endBarColorHex = $color; + } + + function SetLineColor($color) + { + $this->_lineColorHex = $color; + } + + function SetBarSpacing($barSpacing) + { + $this->_barSpacing = $barSpacing; + } + + function SetNumOfValueTicks($ticks) + { + $this->_numOfValueTicks = $ticks; + } + + function SetShowLabels($labels) + { + $this->_showLabels = $labels; + } + + function SetShowValues($values) + { + $this->_showValues = $values; + } + + function SetBarBorder($border) + { + $this->_showBarBorder = $border; + } + + function SetShowFade($fade) + { + $this->_showFade = $fade; + } + + function SetShowOuterBox($box) + { + $this->_showOuterBox = $box; + } + + + function RGBColor($hexColor) // Returns an array of decimal values from a hex color + { + $r = hexdec(substr($hexColor, 0, 2)); + $g = hexdec(substr($hexColor, 2, 2)); + $b = hexdec(substr($hexColor, 4, 2)); + + $RGBColors = array("red" => $r, "green" => $g, "blue" => $b); + + return $RGBColors; + } + + function DebugPrint() // Prints a bunch of debug information. + { + foreach($this->_values as $value) + { + echo $value["label"] . "=" . $value["value"] . "<br>\n"; + } + + $startColor = $this->RGBColor($this->_startBarColorHex); + echo "StartColor: " . $startColor["red"] . ", " . $startColor["green"] . ", " . $startColor["blue"] . "<br>\n"; + + $endColor = $this->RGBColor($this->_endBarColorHex); + echo "EndColor: " . $endColor["red"] . ", " . $endColor["green"] . ", " . $endColor["blue"] . "<br>\n"; + + $lineColor = $this->RGBColor($this->_lineColorHex); + echo "LineColor: " . $lineColor["red"] . ", " . $lineColor["green"] . ", " . $lineColor["blue"] . "<br>\n"; + + echo "x=" . $this->_x . "<br>\n"; + echo "y=" . $this->_y . "<br>\n"; + echo "width=" . $this->_width . "<br>\n"; + echo "height=" . $this->_height . "<br>\n"; + echo "startBarColorHex=" . $this->_startBarColorHex . "<br>\n"; + echo "endBarColorHex=" . $this->_endBarColorHex . "<br>\n"; + echo "lineColorHex=" . $this->_lineColorHex . "<br>\n"; + echo "barSpacing=" . $this->_barSpacing . "<br>\n"; + echo "numOfValueTicks=" . $this->_numOfValueTicks . "<br>\n"; + + } + + function dif ($start,$end) + { + if ($start >= $end) + $dif = $start - $end; + else + $dif = $end - $start; + + return $dif; + } + + function draw($start,$end,$pos,$step_width) + { + if ($start > $end) + $color = $start - $step_width * $pos; + else + $color = $start + $step_width * $pos; + + return $color; + } + + function fadeBar($image, $x1, $y1, $x2, $y2, $colorsStart, $colorsEnd, $height, $width) // Draws a rectangle with a gradient + { + $startColor = $this->RGBColor($colorsStart); + $red_start = $startColor["red"]; + $green_start = $startColor["green"]; + $blue_start = $startColor["blue"]; + + $endColor = $this->RGBColor($colorsEnd); + $red_end = $endColor["red"]; + $green_end = $endColor["green"]; + $blue_end = $endColor["blue"]; + + // difference between start and end + $dif_red = $this->dif($red_start,$red_end); + $dif_green = $this->dif($green_start,$green_end); + $dif_blue = $this->dif($blue_start,$blue_end); + + $height = $height + 1; + + // width of one color step + $step_red = $dif_red / $height; + $step_green = $dif_green / $height; + $step_blue = $dif_blue / $height; + $width = $width - 1; + + + for ($pos=0; $pos<=$height; $pos++) + { + $color = imagecolorexact ($image, $this->draw($red_start,$red_end,$pos,$step_red), + $this->draw($green_start,$green_end,$pos,$step_green), + $this->draw($blue_start,$blue_end,$pos,$step_blue)); + if ($color == -1) // If this color is already allocatated, don't allocate it again. + { + $color = ImageColorAllocate($image,$this->draw($red_start,$red_end,$pos,$step_red), + $this->draw($green_start,$green_end,$pos,$step_green), + $this->draw($blue_start,$blue_end,$pos,$step_blue)); + } + imageline($image,$x1,$pos+$y1,$x1+$width,$pos+$y1,$color); + + } + + } + + function DrawBarGraph($image) + { + if ($this->_debug) + $this->DebugPrint(); + + // Setup the margins + $this->_topMargin = 0; + $this->_bottomMargin = 30; + $this->_leftMargin = 20; + $this->_rightMargin = $this->_barSpacing + 1 + 10; + + // setup the color for the lines + $tempLineColor = $this->RGBColor($this->_lineColorHex); + $lineColor = ImageColorAllocate($image, $tempLineColor["red"], $tempLineColor["green"], $tempLineColor["blue"]); + + $tempStartColor = $this->RGBColor($this->_startBarColorHex); + $startColor = ImageColorAllocate($image, $tempStartColor["red"], $tempStartColor["green"], $tempStartColor["blue"]); + + // Figure out how wide each bar is going to be. + $this->_barWidth = ($this->_width - ($this->_leftMargin + $this->_rightMargin + 1) - (count($this->_values) * $this->_barSpacing)) / count($this->_values); + + // Find out what the smallest and largest amount is. + $this->_minBarHeight = $this->_values[0]["value"]; + $this->_maxBarHeight = $this->_values[0]["value"]; + for ($i=1; $i < count($this->_values); $i++) + { + if ($this->_minBarHeight > $this->_values[$i]["value"]) + { + $this->_minBarHeight = $this->_values[$i]["value"]; + } + if ($this->_maxBarHeight < $this->_values[$i]["value"]) + { + $this->_maxBarHeight = $this->_values[$i]["value"]; + } + } + + if ($this->_minBarHeight == 0 && $this->_maxBarHeight > 0) // Having the min value as 0 looks funny + { + $this->_minBarHeight = 1; + } + $buff = 1; + // Figure out how tall the tallest and smallest bar are going to be. + $this->_realMinBarHeight = $this->_minBarHeight - ($this->_minBarHeight * $buff + 1); + $this->_realMaxBarHeight = $this->_maxBarHeight * ($this->_buffer + 1); + $workArea = $this->_height - $this->_bottomMargin - $this->_topMargin - 1; + + // Print out all the ticks + if ($this->_numOfValueTicks > $this->_maxBarHeight) + { + $this->_numOfValueTicks = $this->_maxBarHeight; + } + + for ($i=1; $i<=$this->_numOfValueTicks; $i++) + { + $thisBarValue = floor((($this->_maxBarHeight - $this->_minBarHeight) / $this->_numOfValueTicks) * $i) + $this->_minBarHeight; + $myTickheight = ($workArea / ($this->_maxBarHeight - $this->_realMinBarHeight) * ($thisBarValue - $this->_realMinBarHeight)); + + // Figure out where we're going to put this tick.. + $y1 = $this->_height - $this->_bottomMargin - 1 - ($myTickheight); + + if ($thisBarValue >= $this->_minBarHeight) + { + imageline($image, $this->_leftMargin - 5 + $this->_x, $y1 + $this->_y, $this->_width - $this->_rightMargin + $this->_barSpacing + $this->_x, $y1 + $this->_y, $lineColor); + Imagestring($image, 1, $this->_leftMargin + $this->_x - 15, $y1 + $this->_y + 2, $thisBarValue, $lineColor); + } + } + + // Print out all the bars + for ($i=1; $i<=count($this->_values); $i++) + { + // Get the bar height for this bar. + $myBarheight = ($workArea / ($this->_maxBarHeight - $this->_realMinBarHeight) * ($this->_values[$i-1]["value"] - $this->_realMinBarHeight)); + + // Figure out where we're going to put this bar.. + $x1 = $this->_leftMargin + 1 + (($i-1) * $this->_barWidth) + ($i * $this->_barSpacing); + $y1 = $this->_height - $this->_bottomMargin - 1 - ($myBarheight); + $x2 = $this->_leftMargin + (($i-1) * $this->_barWidth) + ($i * $this->_barSpacing) + $this->_barWidth; + $y2 = $this->_height - $this->_bottomMargin - 1; + + if ($this->_values[$i-1]["value"] != 0) // Don't print a bar if the value is 0 + { + // Print the bar + if ($this->_showFade) + { + $this->fadeBar($image, $x1 + $this->_x, $y1 + $this->_y, $x2 + $this->_x, $y2 + $this->_y, $this->_startBarColorHex, $this->_endBarColorHex, $myBarheight, $this->_barWidth); + } + else + { + ImageFilledRectangle($image, $x1 + $this->_x, $y1 + $this->_y, $x2 + $this->_x, $y2 + $this->_y, $startColor); + } + + if ($this->_showBarBorder) + { + ImageRectangle($image, $x1 + $this->_x, $y1 + $this->_y, $x2 + $this->_x, $y2 + $this->_y + 1, $lineColor); + } + } + // Print the amount of the bar + if ($this->_showValues) + { + Imagestring($image, 2, $x1 + $this->_x, $this->_height-($this->_bottomMargin/2)-10 + $this->_y, $this->_values[$i-1]["value"], $lineColor); + } + + // Print out the label of the bar. + if ($this->_showLabels) + { + Imagestring($image, 2, $x1 + $this->_x, $this->_height-($this->_bottomMargin/2) + $this->_y, $this->_values[$i-1]["label"], $lineColor); + } + } + + // draw the border box + if ($this->_showOuterBox) + { + ImageRectangle($image, $this->_leftMargin + $this->_x, $this->_topMargin + $this->_y, $this->_width - $this->_rightMargin + $this->_barSpacing + $this->_x, $this->_height - $this->_bottomMargin + $this->_y, $lineColor); + } + + + + } +} + + +?> |