X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/timetracker.git/blobdiff_plain/098a79f0819ebb89b7d48df4a6b154af4560f68e..9a23a8c0a51b7ec38a96f525484134f3cb85dc7e:/WEB-INF/lib/libchart/classes/view/plot/Plot.php

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+<?php
+	/* Libchart - PHP chart library
+	 * Copyright (C) 2005-2008 Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
+	 * 
+	 * 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, either version 3 of the License, or
+	 * (at your option) any later version.
+	 * 
+	 * 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, see <http://www.gnu.org/licenses/>.
+	 * 
+	 */
+	
+	/**
+	 * The plot holds graphical attributes, and is responsible for computing the layout of the graph.
+	 * The layout is quite simple right now, with 4 areas laid out like that:
+	 * (of course this is subject to change in the future).
+	 *
+	 * output area------------------------------------------------|
+	 * |  (outer padding)                                         |
+	 * |  image area--------------------------------------------| |
+	 * |  | (title padding)                                     | |
+	 * |  | title area----------------------------------------| | |
+	 * |  | |-------------------------------------------------| | |
+	 * |  |                                                     | |
+	 * |  | (graph padding)              (caption padding)      | |
+	 * |  | graph area----------------|  caption area---------| | |
+	 * |  | |                         |  |                    | | |
+	 * |  | |                         |  |                    | | |
+	 * |  | |                         |  |                    | | |
+	 * |  | |                         |  |                    | | |
+	 * |  | |                         |  |                    | | |
+	 * |  | |-------------------------|  |--------------------| | |
+	 * |  |                                                     | |
+	 * |  |-----------------------------------------------------| |
+	 * |                                                          |
+	 * |----------------------------------------------------------|
+	 *
+	 * All area dimensions are known in advance , and the optional logo is drawn in absolute coordinates.
+	 *
+	 * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
+	 * Created on 27 july 2007
+	 */
+	class Plot {
+		// Style properties
+		protected $title;
+		protected $logoFileName;
+		
+		// Outer area, whose dimension is the same as the PNG returned
+		protected $outputArea;
+		
+		// Outer padding surrounding the whole image, everything outside is blank
+		protected $outerPadding;
+		
+		// Coordinates of the area inside the outer padding
+		protected $imageArea;
+		
+		// Fixed title height in pixels
+		protected $titleHeight;
+		
+		// Padding of the title area
+		protected $titlePadding;
+		
+		// Coordinates of the title area
+		protected $titleArea;
+		
+		// True if the plot has a caption
+		protected $hasCaption;
+		
+		// Ratio of graph/caption in width
+		protected $graphCaptionRatio;
+		
+		// Padding of the graph area
+		protected $graphPadding;
+		
+		// Coordinates of the graph area
+		protected $graphArea;
+		
+		// Padding of the caption area
+		protected $captionPadding;
+		
+		// Coordinates of the caption area
+		protected $captionArea;
+		
+		/**
+		 * Text writer.
+		 */
+		protected $text;
+		
+		/**
+		 * Color palette.
+		 */
+		protected $palette;
+		
+		/**
+		 * GD image
+		 */
+		protected $img;
+
+		/**
+		 * Drawing primitives
+		 */
+		protected $primitive;
+
+		protected $backGroundColor;
+		protected $textColor;
+
+		/**
+		 * Constructor of Plot.
+		 *
+		 * @param integer width of the image
+		 * @param integer height of the image
+		 */
+		public function Plot($width, $height) {
+			$this->width = $width;
+			$this->height = $height;
+
+			$this->text = new Text();
+			$this->palette = new Palette();
+			
+			// Default layout
+			$this->outputArea = new Rectangle(0, 0, $width - 1, $height - 1);
+			$this->outerPadding = new Padding(5);
+			$this->titleHeight = 26;
+			$this->titlePadding = new Padding(5);
+			$this->hasCaption = false;
+			$this->graphCaptionRatio = 0.50;
+			$this->graphPadding = new Padding(50);
+			$this->captionPadding = new Padding(15);
+		}
+
+		/**
+		 * Compute the area inside the outer padding (outside is white).
+		 */
+		private function computeImageArea() {
+			$this->imageArea = $this->outputArea->getPaddedRectangle($this->outerPadding);
+		}
+		
+		/**
+		 * Compute the title area.
+		 */
+		private function computeTitleArea() {
+			$titleUnpaddedBottom = $this->imageArea->y1 + $this->titleHeight + $this->titlePadding->top + $this->titlePadding->bottom;
+			$titleArea = new Rectangle(
+					$this->imageArea->x1,
+					$this->imageArea->y1,
+					$this->imageArea->x2,
+					$titleUnpaddedBottom - 1
+			);
+			$this->titleArea = $titleArea->getPaddedRectangle($this->titlePadding);
+		}
+		
+		/**
+		 * Compute the graph area.
+		 */
+		private function computeGraphArea() {
+			$titleUnpaddedBottom = $this->imageArea->y1 + $this->titleHeight + $this->titlePadding->top + $this->titlePadding->bottom;
+			$graphArea = null;
+			if ($this->hasCaption) {
+				$graphUnpaddedRight = $this->imageArea->x1 + ($this->imageArea->x2 - $this->imageArea->x1) * $this->graphCaptionRatio
+						+ $this->graphPadding->left + $this->graphPadding->right;
+				$graphArea = new Rectangle(
+						$this->imageArea->x1,
+						$titleUnpaddedBottom,
+						$graphUnpaddedRight - 1,
+						$this->imageArea->y2
+				);
+			} else {
+				$graphArea = new Rectangle(
+						$this->imageArea->x1,
+						$titleUnpaddedBottom,
+						$this->imageArea->x2,
+						$this->imageArea->y2
+				);
+			}
+			$this->graphArea = $graphArea->getPaddedRectangle($this->graphPadding);
+		}
+		
+		/**
+		 * Compute the caption area.
+		 */
+		private function computeCaptionArea() {
+			$graphUnpaddedRight = $this->imageArea->x1 + ($this->imageArea->x2 - $this->imageArea->x1) * $this->graphCaptionRatio
+					+ $this->graphPadding->left + $this->graphPadding->right;
+			$titleUnpaddedBottom = $this->imageArea->y1 + $this->titleHeight + $this->titlePadding->top + $this->titlePadding->bottom;
+			$captionArea = new Rectangle(
+					$graphUnpaddedRight,
+					$titleUnpaddedBottom,
+					$this->imageArea->x2,
+					$this->imageArea->y2
+			);
+			$this->captionArea = $captionArea->getPaddedRectangle($this->captionPadding);
+		}
+		
+		/**
+		 * Compute the layout of all areas of the graph.
+		 */
+		public function computeLayout() {
+			$this->computeImageArea();
+			$this->computeTitleArea();
+			$this->computeGraphArea();
+			if ($this->hasCaption) {
+				$this->computeCaptionArea();
+			}
+		}
+		
+		/**
+		 * Creates and initialize the image.
+		 */
+		public function createImage() {
+			$this->img = imagecreatetruecolor($this->width, $this->height);
+			
+			$this->primitive = new Primitive($this->img);
+
+			$this->backGroundColor = new Color(255, 255, 255);
+			$this->textColor = new Color(0, 0, 0);
+
+			// White background
+			imagefilledrectangle($this->img, 0, 0, $this->width - 1, $this->height - 1, $this->backGroundColor->getColor($this->img));
+			
+			//imagerectangle($this->img, $this->imageArea->x1, $this->imageArea->y1, $this->imageArea->x2, $this->imageArea->y2, $this->palette->red->getColor($this->img));
+		}
+
+		/**
+		 * Print the title to the image.
+		 */
+		public function printTitle() {
+			$yCenter = $this->titleArea->y1 + ($this->titleArea->y2 - $this->titleArea->y1) / 2;
+			$this->text->printCentered($this->img, $yCenter, $this->textColor, $this->title, $this->text->fontCondensedBold);
+		}
+
+		/**
+		 * Print the logo image to the image.
+		 */
+		public function printLogo() {
+			@$logoImage = imageCreateFromPNG($this->logoFileName);
+
+			if ($logoImage) {
+				imagecopymerge($this->img, $logoImage, 2 * $this->outerPadding->left, $this->outerPadding->top, 0, 0, imagesx($logoImage), imagesy($logoImage), 100);
+			}
+		}
+
+		/**
+		 * Renders to a file or to standard output.
+		 *
+		 * @param fileName File name (optional)
+		 */
+		public function render($fileName) {
+			if (isset($fileName)) {
+				imagepng($this->img, $fileName);
+			} else {
+				imagepng($this->img);
+			}
+		}
+
+		/**
+		 * Sets the title.
+		 *
+		 * @param string New title
+		 */
+		public function setTitle($title) {
+			$this->title = $title;
+		}
+
+		/**
+		 * Sets the logo image file name.
+		 *
+		 * @param string New logo image file name
+		 */
+		public function setLogoFileName($logoFileName) {
+			$this->logoFileName = $logoFileName;
+		}
+
+		/**
+		 * Return the GD image.
+		 *
+		 * @return GD Image
+		 */
+		public function getImg() {
+			return $this->img;
+		}
+
+		/**
+		 * Return the palette.
+		 *
+		 * @return palette
+		 */
+		public function getPalette() {
+			return $this->palette;
+		}
+
+		/**
+		 * Return the text.
+		 *
+		 * @return text
+		 */
+		public function getText() {
+			return $this->text;
+		}
+
+		/**
+		 * Return the primitive.
+		 *
+		 * @return primitive
+		 */
+		public function getPrimitive() {
+			return $this->primitive;
+		}
+
+		/**
+		 * Return the outer padding.
+		 *
+		 * @param integer Outer padding value in pixels
+		 */
+		public function getOuterPadding() {
+			return $outerPadding;
+		}
+
+		/**
+		 * Set the outer padding.
+		 *
+		 * @param integer Outer padding value in pixels
+		 */
+		public function setOuterPadding($outerPadding) {
+			$this->outerPadding = $outerPadding;
+		}
+
+		/**
+		 * Return the title height.
+		 *
+		 * @param integer title height
+		 */
+		public function setTitleHeight($titleHeight) {
+			$this->titleHeight = $titleHeight;
+		}
+
+		/**
+		 * Return the title padding.
+		 *
+		 * @param integer title padding
+		 */
+		public function setTitlePadding($titlePadding) {
+			$this->titlePadding = $titlePadding;
+		}
+
+		/**
+		 * Return the graph padding.
+		 *
+		 * @param integer graph padding
+		 */
+		public function setGraphPadding($graphPadding) {
+			$this->graphPadding = $graphPadding;
+		}
+
+		/**
+		 * Set if the graph has a caption.
+		 *
+		 * @param boolean graph has a caption
+		 */
+		public function setHasCaption($hasCaption) {
+			$this->hasCaption = $hasCaption;
+		}
+
+		/**
+		 * Set the caption padding.
+		 *
+		 * @param integer caption padding
+		 */
+		public function setCaptionPadding($captionPadding) {
+			$this->captionPadding = $captionPadding;
+		}
+
+		/**
+		 * Set the graph/caption ratio.
+		 *
+		 * @param integer caption padding
+		 */
+		public function setGraphCaptionRatio($graphCaptionRatio) {
+			$this->graphCaptionRatio = $graphCaptionRatio;
+		}
+
+		/**
+		 * Return the graph area.
+		 *
+		 * @return graph area
+		 */
+		public function getGraphArea() {
+			return $this->graphArea;
+		}
+
+		/**
+		 * Return the caption area.
+		 *
+		 * @return caption area
+		 */
+		public function getCaptionArea() {
+			return $this->captionArea;
+		}
+
+		/**
+		 * Return the text color.
+		 *
+		 * @return text color
+		 */
+		public function getTextColor() {
+			return $this->textColor;
+		}
+	}
+?>
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