-First draft of history display

git-svn-id: http://piwigo.org/svn/trunk@537 68402e56-0260-453c-a942-63ccdbb3a9ee

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);
+      }
+
+
+       
+   }
+}
+
+
+?>