Initial repo created

[timetracker.git] / WEB-INF / lib / libchart / classes / view / text / Text.php

diff --git a/WEB-INF/lib/libchart/classes/view/text/Text.php b/WEB-INF/lib/libchart/classes/view/text/Text.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/>.
+        * 
+        */
+       
+       /**
+        * Text drawing helper
+        *
+        * @author Jean-Marc Trémeaux (jm.tremeaux at gmail.com)
+        */
+       class Text {
+               public $HORIZONTAL_LEFT_ALIGN = 1;
+               public $HORIZONTAL_CENTER_ALIGN = 2;
+               public $HORIZONTAL_RIGHT_ALIGN = 4;
+               public $VERTICAL_TOP_ALIGN = 8;
+               public $VERTICAL_CENTER_ALIGN = 16;
+               public $VERTICAL_BOTTOM_ALIGN = 32;
+
+               /**
+                * Creates a new text drawing helper.
+                */
+               public function Text() {
+                       $baseDir = dirname(__FILE__) . "/../../../";
+               
+                       // Free low-res fonts based on Bitstream Vera <http://dejavu.sourceforge.net/wiki/>
+                       $this->fontCondensed = $baseDir . "fonts/DejaVuSansCondensed.ttf";
+                       $this->fontCondensedBold = $baseDir . "fonts/DejaVuSansCondensed-Bold.ttf";
+               }
+
+               /**
+                * Print text.
+                *
+                * @param Image GD image
+                * @param integer text coordinate (x)
+                * @param integer text coordinate (y)
+                * @param Color text color
+                * @param string text value
+                * @param string font file name
+                * @param bitfield text alignment
+                */
+               public function printText($img, $px, $py, $color, $text, $fontFileName, $align = 0) {
+                       if (!($align & $this->HORIZONTAL_CENTER_ALIGN) && !($align & $this->HORIZONTAL_RIGHT_ALIGN)) {
+                               $align |= $this->HORIZONTAL_LEFT_ALIGN;
+                       }
+
+                       if (!($align & $this->VERTICAL_CENTER_ALIGN) && !($align & $this->VERTICAL_BOTTOM_ALIGN)) {
+                               $align |= $this->VERTICAL_TOP_ALIGN;
+                       }
+
+                       $fontSize = 8;
+                       $lineSpacing = 1;
+
+                       list ($llx, $lly, $lrx, $lry, $urx, $ury, $ulx, $uly) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing));
+
+                       $textWidth = $lrx - $llx;
+                       $textHeight = $lry - $ury;
+
+                       $angle = 0;
+
+                       if ($align & $this->HORIZONTAL_CENTER_ALIGN) {
+                               $px -= $textWidth / 2;
+                       }
+
+                       if ($align & $this->HORIZONTAL_RIGHT_ALIGN) {
+                               $px -= $textWidth;
+                       }
+
+                       if ($align & $this->VERTICAL_CENTER_ALIGN) {
+                               $py += $textHeight / 2;
+                       }
+
+                       if ($align & $this->VERTICAL_TOP_ALIGN) {
+                               $py += $textHeight;
+                       }
+
+                       imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text);
+               }
+               
+               /**
+                * Print text centered horizontally on the image.
+                *
+                * @param Image GD image
+                * @param integer text coordinate (y)
+                * @param Color text color
+                * @param string text value
+                * @param string font file name
+                */
+               public function printCentered($img, $py, $color, $text, $fontFileName) {
+                       $this->printText($img, imagesx($img) / 2, $py, $color, $text, $fontFileName, $this->HORIZONTAL_CENTER_ALIGN | $this->VERTICAL_CENTER_ALIGN);
+               }
+
+               /**
+                * Print text in diagonal.
+                *
+                * @param Image GD image
+                * @param integer text coordinate (x)
+                * @param integer text coordinate (y)
+                * @param Color text color
+                * @param string text value
+                */
+               public function printDiagonal($img, $px, $py, $color, $text) {
+                       $fontSize = 8;
+                       $fontFileName = $this->fontCondensed;
+
+                       $lineSpacing = 1;
+
+                       list ($lx, $ly, $rx, $ry) = imageftbbox($fontSize, 0, $fontFileName, $text, array("linespacing" => $lineSpacing));
+                       $textWidth = $rx - $lx;
+
+                       $angle = -45;
+
+                       imagettftext($img, $fontSize, $angle, $px, $py, $color->getColor($img), $fontFileName, $text);
+               }
+       }
+?>
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