restructuring of boca's git

1 files changed, 172 insertions, 0 deletions

diff --git a/src/libchart/classes/BarChart.php b/src/libchart/classes/BarChart.php
new file mode 100644
index 0000000..5b658ca
--- /dev/null
+++ b/src/libchart/classes/BarChart.php
@@ -0,0 +1,172 @@
+<?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
+	* 
+	*/
+	
+	/**
+	* Base bar chart class (horizontal or vertical)
+	*
+	* @author   Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
+	* @abstract
+	*/
+
+	class BarChart extends Chart
+	{
+		/**
+		* Creates a new bar chart
+		*
+		* @access	protected
+    		* @param	integer		width of the image
+    		* @param	integer		height of the image
+		*/
+		
+		function BarChart($width, $height)
+		{
+			parent::Chart($width, $height);
+
+			$this->setMargin(5);
+			$this->setLowerBound(0);
+		}
+
+		/**
+		* Compute the boundaries on the axis
+		*
+		* @access	protected
+		*/
+		
+		function computeBound()
+		{
+			// Compute lower and upper bound on the value axis
+
+			$point = current($this->point);
+			
+			// Check if some points were defined
+			
+			if(!$point)
+			{
+				$yMin = 0;
+				$yMax = 1;
+			}
+			else
+			{
+				$yMax = $yMin = $point->getY();
+	
+				foreach($this->point as $point)
+				{
+					$y = $point->getY();
+	
+					if($y < $yMin)
+						$yMin = $y;
+	
+					if($y > $yMax)
+						$yMax = $y;
+				}
+			}
+
+			$this->yMinValue = isset($this->lowerBound) ? $this->lowerBound : $yMin;
+			$this->yMaxValue = isset($this->upperBound) ? $this->upperBound : $yMax;
+			
+			// Compute boundaries on the sample axis
+
+			$this->sampleCount = count($this->point);
+		}
+
+		/**
+		* Set manually the lower boundary value (overrides the automatic formatting)
+		* Typical usage is to set the bars starting from zero
+		*
+		* @access	public
+		* @param	double		lower boundary value
+		*/
+		
+		function setLowerBound($lowerBound)
+		{
+			$this->lowerBound = $lowerBound;
+		}
+
+		/**
+		* Set manually the upper boundary value (overrides the automatic formatting)
+		*
+		* @access	public
+		* @param	double		upper boundary value
+		*/
+		
+		function setUpperBound($upperBound)
+		{
+			$this->upperBound = $upperBound;
+		}
+
+		/**
+		* Compute the image layout
+		*
+		* @access	protected
+		*/
+		
+		function computeLabelMargin()
+		{
+			$this->axis = new Axis($this->yMinValue, $this->yMaxValue);
+			$this->axis->computeBoundaries();
+
+			$this->graphTLX = $this->margin + $this->labelMarginLeft;
+			$this->graphTLY = $this->margin + $this->labelMarginTop;
+			$this->graphBRX = $this->width - $this->margin - $this->labelMarginRight;
+			$this->graphBRY = $this->height - $this->margin - $this->labelMarginBottom;
+		}
+
+		/**
+		* Create the image
+		*
+		* @access	protected
+		*/
+		
+		function createImage()
+		{
+			parent::createImage();
+
+			$this->axisColor1 = new Color(201, 201, 201);
+			$this->axisColor2 = new Color(158, 158, 158);
+
+			$this->aquaColor1 = new Color(242, 242, 242);
+			$this->aquaColor2 = new Color(231, 231, 231);
+			$this->aquaColor3 = new Color(239, 239, 239);
+			$this->aquaColor4 = new Color(253, 253, 253);
+
+			$this->barColor1 = new Color(42, 71, 181);
+			$this->barColor2 = new Color(33, 56, 143);
+
+			$this->barColor3 = new Color(172, 172, 210);
+			$this->barColor4 = new Color(117, 117, 143);
+			
+			// Aqua-like background
+
+			$aquaColor = Array($this->aquaColor1, $this->aquaColor2, $this->aquaColor3, $this->aquaColor4);
+
+			for($i = $this->graphTLY; $i < $this->graphBRY; $i++)
+			{
+				$color = $aquaColor[($i + 3) % 4];
+				$this->primitive->line($this->graphTLX, $i, $this->graphBRX, $i, $color);
+			}
+
+			// Axis
+
+			imagerectangle($this->img, $this->graphTLX - 1, $this->graphTLY, $this->graphTLX, $this->graphBRY, $this->axisColor1->getColor($this->img));
+			imagerectangle($this->img, $this->graphTLX - 1, $this->graphBRY, $this->graphBRX, $this->graphBRY + 1, $this->axisColor1->getColor($this->img));
+		}
+	}
+?>