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authorgweltas <gweltas@piwigo.org>2004-09-26 21:24:49 +0000
committergweltas <gweltas@piwigo.org>2004-09-26 21:24:49 +0000
commit1d4238055a7fbb86bdb901f09eb5de90026ba431 (patch)
treea3273603e2a8c4e859bded7f992c02a8ba101270 /admin/images/phpBarGraph.php
parentbb8189ea750fdde2b489abd563034e0efb32db20 (diff)
-First draft of history display
git-svn-id: http://piwigo.org/svn/trunk@537 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to '')
-rw-r--r--admin/images/phpBarGraph.php391
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);
+ }
+
+
+
+ }
+}
+
+
+?>