--- /dev/null
+<?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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projects / timetracker.git / blobdiff