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authorChris Buechler <cmb@pfsense.org>2011-01-25 05:20:28 -0500
committerChris Buechler <cmb@pfsense.org>2011-01-25 05:21:06 -0500
commit7af18d10dc23084ae8390241c2e9951d530248f7 (patch)
treebba85a3958c7c11a8ce0bc8d6b0addad3a24c2f1 /config/archive/dspam/pear/Image/Graph/Element.php
parentdc3d5f22067dd659e4e8bd407e0745f78769fc85 (diff)
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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Image_Graph - Main class for the graph creation.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: 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., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ *
+ * @category Images
+ * @package Image_Graph
+ * @author Jesper Veggerby <pear.nosey@veggerby.dk>
+ * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
+ * @version CVS: $Id$
+ * @link http://pear.php.net/package/Image_Graph
+ */
+
+/**
+ * Include file Common.php
+ */
+require_once 'Image/Graph/Common.php';
+
+/**
+ * Representation of a element.
+ *
+ * The Image_Graph_Element can be drawn on the canvas, ie it has coordinates,
+ * {@link Image_Graph_Line}, {@link Image_Graph_Fill}, border and background -
+ * although not all of these may apply to all children.
+ *
+ * @category Images
+ * @package Image_Graph
+ * @author Jesper Veggerby <pear.nosey@veggerby.dk>
+ * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
+ * @version Release: @package_version@
+ * @link http://pear.php.net/package/Image_Graph
+ * @abstract
+ */
+class Image_Graph_Element extends Image_Graph_Common
+{
+
+ /**
+ * The leftmost pixel of the element on the canvas
+ * @var int
+ * @access private
+ */
+ var $_left = 0;
+
+ /**
+ * The topmost pixel of the element on the canvas
+ * @var int
+ * @access private
+ */
+ var $_top = 0;
+
+ /**
+ * The rightmost pixel of the element on the canvas
+ * @var int
+ * @access private
+ */
+ var $_right = 0;
+
+ /**
+ * The bottommost pixel of the element on the canvas
+ * @var int
+ * @access private
+ */
+ var $_bottom = 0;
+
+ /**
+ * Background of the element. Default: None
+ * @var FillStyle
+ * @access private
+ */
+ var $_background = null;
+
+ /**
+ * Borderstyle of the element. Default: None
+ * @var LineStyle
+ * @access private
+ */
+ var $_borderStyle = null;
+
+ /**
+ * Line style of the element. Default: None
+ * @var LineStyle
+ * @access private
+ */
+ var $_lineStyle = 'black';
+
+ /**
+ * Fill style of the element. Default: None
+ * @var FillStyle
+ * @access private
+ */
+ var $_fillStyle = 'white';
+
+ /**
+ * Font of the element. Default: Standard font - FONT
+ * @var Font
+ * @access private
+ * @see $IMAGE_GRAPH_FONT
+ */
+ var $_font = null;
+
+ /**
+ * Font options
+ * @var array
+ * @access private
+ */
+ var $_fontOptions = array();
+
+ /**
+ * Default font options
+ *
+ * This option is included for performance reasons. The value is calculated
+ * before output and reused in default cases to avoid unnecessary recursive
+ * calls.
+ *
+ * @var array
+ * @access private
+ */
+ var $_defaultFontOptions = false;
+
+ /**
+ * Shadows options of the element
+ * @var mixed
+ * @access private
+ */
+ var $_shadow = false;
+
+ /**
+ * The padding displayed on the element
+ * @var int
+ * @access private
+ */
+ var $_padding = array('left' => 0, 'top' => 0, 'right' => 0, 'bottom' => 0);
+
+ /**
+ * Sets the background fill style of the element
+ *
+ * @param Image_Graph_Fill $background The background
+ * @see Image_Graph_Fill
+ */
+ function setBackground(& $background)
+ {
+ if (!is_a($background, 'Image_Graph_Fill')) {
+ $this->_error(
+ 'Could not set background for ' . get_class($this) . ': ' .
+ get_class($background), array('background' => &$background)
+ );
+ } else {
+ $this->_background =& $background;
+ $this->add($background);
+ }
+ }
+
+ /**
+ * Shows shadow on the element
+ */
+ function showShadow($color = 'black@0.2', $size = 5)
+ {
+ $this->_shadow = array(
+ 'color' => $color,
+ 'size' => $size
+ );
+ }
+
+ /**
+ * Sets the background color of the element.
+ *
+ * See colors.txt in the docs/ folder for a list of available named colors.
+ *
+ * @param mixed $color The color
+ */
+ function setBackgroundColor($color)
+ {
+ $this->_background = $color;
+ }
+
+ /**
+ * Gets the background fill style of the element
+ *
+ * @return int A GD fillstyle representing the background style
+ * @see Image_Graph_Fill
+ * @access private
+ */
+ function _getBackground()
+ {
+ if (is_object($this->_background)) {
+ $this->_canvas->setFill($this->_background->_getFillStyle());
+ } elseif ($this->_background != null) {
+ $this->_canvas->setFill($this->_background);
+ } else {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Sets the border line style of the element
+ *
+ * @param Image_Graph_Line $borderStyle The line style of the border
+ * @see Image_Graph_Line
+ */
+ function setBorderStyle(& $borderStyle)
+ {
+ if (!is_a($borderStyle, 'Image_Graph_Line')) {
+ $this->_error(
+ 'Could not set border style for ' . get_class($this) . ': ' .
+ get_class($borderStyle), array('borderstyle' => &$borderStyle)
+ );
+ } else {
+ $this->_borderStyle =& $borderStyle;
+ $this->add($borderStyle);
+ }
+ }
+
+ /**
+ * Sets the border color of the element.
+ *
+ * See colors.txt in the docs/ folder for a list of available named colors.
+ * @param mixed $color The color
+ */
+ function setBorderColor($color)
+ {
+ $this->_borderStyle = $color;
+ }
+
+ /**
+ * Gets the border line style of the element
+ *
+ * @return int A GD linestyle representing the borders line style
+ * @see Image_Graph_Line
+ * @access private
+ */
+ function _getBorderStyle()
+ {
+ if (is_object($this->_borderStyle)) {
+ $result = $this->_borderStyle->_getLineStyle();
+ $this->_canvas->setLineThickness($result['thickness']);
+ $this->_canvas->setLineColor($result['color']);
+ } elseif ($this->_borderStyle != null) {
+ $this->_canvas->setLineThickness(1);
+ $this->_canvas->setLineColor($this->_borderStyle);
+ } else {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Sets the line style of the element
+ *
+ * @param Image_Graph_Line $lineStyle The line style of the element
+ * @see Image_Graph_Line
+ */
+ function setLineStyle(& $lineStyle)
+ {
+ if (!is_object($lineStyle)) {
+ $this->_error(
+ 'Could not set line style for ' . get_class($this) . ': ' .
+ get_class($lineStyle), array('linestyle' => &$lineStyle)
+ );
+ } else {
+ $this->_lineStyle =& $lineStyle;
+ $this->add($lineStyle);
+ }
+ }
+
+ /**
+ * Sets the line color of the element.
+ *
+ * See colors.txt in the docs/ folder for a list of available named colors.
+ *
+ * @param mixed $color The color
+ */
+ function setLineColor($color)
+ {
+ $this->_lineStyle = $color;
+ }
+
+ /**
+ * Gets the line style of the element
+ *
+ * @return int A GD linestyle representing the line style
+ * @see Image_Graph_Line
+ * @access private
+ */
+ function _getLineStyle($ID = false)
+ {
+ if (is_object($this->_lineStyle)) {
+ $result = $this->_lineStyle->_getLineStyle($ID);
+ if (is_array($result)) {
+ $this->_canvas->setLineThickness($result['thickness']);
+ $this->_canvas->setLineColor($result['color']);
+ } else {
+ $this->_canvas->setLineThickness(1);
+ $this->_canvas->setLineColor($result);
+ }
+ } elseif ($this->_lineStyle != null) {
+ $this->_canvas->setLineThickness(1);
+ $this->_canvas->setLineColor($this->_lineStyle);
+ } else {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Sets the fill style of the element
+ *
+ * @param Image_Graph_Fill $fillStyle The fill style of the element
+ * @see Image_Graph_Fill
+ */
+ function setFillStyle(& $fillStyle)
+ {
+ if (!is_a($fillStyle, 'Image_Graph_Fill')) {
+ $this->_error(
+ 'Could not set fill style for ' . get_class($this) . ': ' .
+ get_class($fillStyle), array('fillstyle' => &$fillStyle)
+ );
+ } else {
+ $this->_fillStyle =& $fillStyle;
+ $this->add($fillStyle);
+ }
+ }
+
+ /**
+ * Sets the fill color of the element.
+ *
+ * See colors.txt in the docs/ folder for a list of available named colors.
+ *
+ * @param mixed $color The color
+ */
+ function setFillColor($color)
+ {
+ $this->_fillStyle = $color;
+ }
+
+
+ /**
+ * Gets the fill style of the element
+ *
+ * @return int A GD filestyle representing the fill style
+ * @see Image_Graph_Fill
+ * @access private
+ */
+ function _getFillStyle($ID = false)
+ {
+ if (is_object($this->_fillStyle)) {
+ $this->_canvas->setFill($this->_fillStyle->_getFillStyle($ID));
+ } elseif ($this->_fillStyle != null) {
+ $this->_canvas->setFill($this->_fillStyle);
+ } else {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Gets the font of the element.
+ *
+ * If not font has been set, the parent font is propagated through it's
+ * children.
+ *
+ * @return array An associated array used for canvas
+ * @access private
+ */
+ function _getFont($options = false)
+ {
+ if (($options === false) && ($this->_defaultFontOptions !== false)) {
+ return $this->_defaultFontOptions;
+ }
+
+ if ($options === false) {
+ $saveDefault = true;
+ } else {
+ $saveDefault = false;
+ }
+
+ if ($options === false) {
+ $options = $this->_fontOptions;
+ } else {
+ $options = array_merge($this->_fontOptions, $options);
+ }
+
+ if ($this->_font == null) {
+ $result = $this->_parent->_getFont($options);
+ } else {
+ $result = $this->_font->_getFont($options);
+ }
+
+ if ((isset($result['size'])) && (isset($result['size_rel']))) {
+ $result['size'] += $result['size_rel'];
+ unset($result['size_rel']);
+ }
+
+ if ($saveDefault) {
+ $this->_defaultFontOptions = $result;
+ }
+
+ return $result;
+ }
+
+ /**
+ * Sets the font of the element
+ *
+ * @param Image_Graph_Font $font The font of the element
+ * @see Image_Graph_Font
+ */
+ function setFont(& $font)
+ {
+ if (!is_a($font, 'Image_Graph_Font')) {
+ $this->_error('Invalid font set on ' . get_class($this));
+ } else {
+ $this->_font =& $font;
+ $this->add($font);
+ }
+ }
+
+ /**
+ * Sets the font size
+ *
+ * @param int $size The size of the font
+ */
+ function setFontSize($size)
+ {
+ $this->_fontOptions['size'] = $size;
+ }
+
+ /**
+ * Sets the font angle
+ *
+ * @param int $angle The angle of the font
+ */
+ function setFontAngle($angle)
+ {
+ if ($angle == 'vertical') {
+ $this->_fontOptions['vertical'] = true;
+ $this->_fontOptions['angle'] = 90;
+ } else {
+ $this->_fontOptions['angle'] = $angle;
+ }
+ }
+
+ /**
+ * Sets the font color
+ *
+ * @param mixed $color The color of the font
+ */
+ function setFontColor($color)
+ {
+ $this->_fontOptions['color'] = $color;
+ }
+
+ /**
+ * Clip the canvas to the coordinates of the element
+ *
+ * @param $enable bool Whether clipping should be enabled or disabled
+ * @access protected
+ */
+ function _clip($enable)
+ {
+ $this->_canvas->setClipping(
+ ($enable ?
+ array(
+ 'x0' => min($this->_left, $this->_right),
+ 'y0' => min($this->_top, $this->_bottom),
+ 'x1' => max($this->_left, $this->_right),
+ 'y1' => max($this->_top, $this->_bottom)
+ )
+ : false
+ )
+ );
+ }
+
+ /**
+ * Sets the coordinates of the element
+ *
+ * @param int $left The leftmost pixel of the element on the canvas
+ * @param int $top The topmost pixel of the element on the canvas
+ * @param int $right The rightmost pixel of the element on the canvas
+ * @param int $bottom The bottommost pixel of the element on the canvas
+ * @access private
+ */
+ function _setCoords($left, $top, $right, $bottom)
+ {
+ if ($left === false) {
+ $left = $this->_left;
+ }
+
+ if ($top === false) {
+ $top = $this->_top;
+ }
+
+ if ($right === false) {
+ $right = $this->_right;
+ }
+
+ if ($bottom === false) {
+ $bottom = $this->_bottom;
+ }
+
+ $this->_left = min($left, $right);
+ $this->_top = min($top, $bottom);
+ $this->_right = max($left, $right);
+ $this->_bottom = max($top, $bottom);
+ }
+
+ /**
+ * Moves the element
+ *
+ * @param int $deltaX Number of pixels to move the element to the right
+ * (negative values move to the left)
+ * @param int $deltaY Number of pixels to move the element downwards
+ * (negative values move upwards)
+ * @access private
+ */
+ function _move($deltaX, $deltaY)
+ {
+ $this->_left += $deltaX;
+ $this->_right += $deltaX;
+ $this->_top += $deltaY;
+ $this->_bottom += $deltaY;
+ }
+
+ /**
+ * Sets the width of the element relative to the left side
+ *
+ * @param int $width Number of pixels the element should be in width
+ * @access private
+ */
+ function _setWidth($width)
+ {
+ $this->_right = $this->_left + $width;
+ }
+
+ /**
+ * Sets the height of the element relative to the top
+ *
+ * @param int $width Number of pixels the element should be in height
+ * @access private
+ */
+ function _setHeight($height)
+ {
+ $this->_bottom = $this->_top + $height;
+ }
+
+ /**
+ * Sets padding of the element
+ *
+ * @param mixed $padding Number of pixels the element should be padded with
+ * or an array of paddings (left, top, right and bottom as index)
+ */
+ function setPadding($padding)
+ {
+ if (is_array($padding)) {
+ $this->_padding = array();
+ $this->_padding['left'] = (isset($padding['left']) ? $padding['left'] : 0);
+ $this->_padding['top'] = (isset($padding['top']) ? $padding['top'] : 0);
+ $this->_padding['right'] = (isset($padding['right']) ? $padding['right'] : 0);
+ $this->_padding['bottom'] = (isset($padding['bottom']) ? $padding['bottom'] : 0);
+ }
+ else {
+ $this->_padding = array(
+ 'left' => $padding,
+ 'top' => $padding,
+ 'right' => $padding,
+ 'bottom' => $padding
+ );
+ }
+ }
+
+ /**
+ * The width of the element on the canvas
+ *
+ * @return int Number of pixels representing the width of the element
+ */
+ function width()
+ {
+ return abs($this->_right - $this->_left) + 1;
+ }
+
+ /**
+ * The height of the element on the canvas
+ *
+ * @return int Number of pixels representing the height of the element
+ */
+ function height()
+ {
+ return abs($this->_bottom - $this->_top) + 1;
+ }
+
+ /**
+ * Left boundary of the background fill area
+ *
+ * @return int Leftmost position on the canvas
+ * @access private
+ */
+ function _fillLeft()
+ {
+ return $this->_left + $this->_padding['left'];
+ }
+
+ /**
+ * Top boundary of the background fill area
+ *
+ * @return int Topmost position on the canvas
+ * @access private
+ */
+ function _fillTop()
+ {
+ return $this->_top + $this->_padding['top'];
+ }
+
+ /**
+ * Right boundary of the background fill area
+ *
+ * @return int Rightmost position on the canvas
+ * @access private
+ */
+ function _fillRight()
+ {
+ return $this->_right - $this->_padding['right'];
+ }
+
+ /**
+ * Bottom boundary of the background fill area
+ *
+ * @return int Bottommost position on the canvas
+ * @access private
+ */
+ function _fillBottom()
+ {
+ return $this->_bottom - $this->_padding['bottom'];
+ }
+
+ /**
+ * Returns the filling width of the element on the canvas
+ *
+ * @return int Filling width
+ * @access private
+ */
+ function _fillWidth()
+ {
+ return $this->_fillRight() - $this->_fillLeft() + 1;
+ }
+
+ /**
+ * Returns the filling height of the element on the canvas
+ *
+ * @return int Filling height
+ * @access private
+ */
+ function _fillHeight()
+ {
+ return $this->_fillBottom() - $this->_fillTop() + 1;
+ }
+
+ /**
+ * Draws a shadow 'around' the element
+ *
+ * Not implemented yet.
+ *
+ * @access private
+ */
+ function _displayShadow()
+ {
+ if (is_array($this->_shadow)) {
+ $this->_canvas->startGroup(get_class($this) . '_shadow');
+ $this->_canvas->setFillColor($this->_shadow['color']);
+ $this->_canvas->addVertex(array('x' => $this->_right + 1, 'y' => $this->_top + $this->_shadow['size']));
+ $this->_canvas->addVertex(array('x' => $this->_right + $this->_shadow['size'], 'y' => $this->_top + $this->_shadow['size']));
+ $this->_canvas->addVertex(array('x' => $this->_right + $this->_shadow['size'], 'y' => $this->_bottom + $this->_shadow['size']));
+ $this->_canvas->addVertex(array('x' => $this->_left + $this->_shadow['size'], 'y' => $this->_bottom + $this->_shadow['size']));
+ $this->_canvas->addVertex(array('x' => $this->_left + $this->_shadow['size'], 'y' => $this->_bottom + 1));
+ $this->_canvas->addVertex(array('x' => $this->_right + 1, 'y' => $this->_bottom + 1));
+ $this->_canvas->polygon(array('connect' => true));
+ $this->_canvas->endGroup();
+ }
+ }
+
+ /**
+ * Writes text to the canvas.
+ *
+ * @param int $x The x position relative to alignment
+ * @param int $y The y position relative to alignment
+ * @param string $text The text
+ * @param int $alignmen The text alignment (both vertically and horizontally)
+ */
+ function write($x, $y, $text, $alignment = false, $font = false)
+ {
+ if (($font === false) && ($this->_defaultFontOptions !== false)) {
+ $font = $this->_defaultFontOptions;
+ } else {
+ $font = $this->_getFont($font);
+ }
+
+ if ($alignment === false) {
+ $alignment = IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_TOP;
+ }
+
+ $align = array();
+
+ if (($alignment & IMAGE_GRAPH_ALIGN_TOP) != 0) {
+ $align['vertical'] = 'top';
+ } else if (($alignment & IMAGE_GRAPH_ALIGN_BOTTOM) != 0) {
+ $align['vertical'] = 'bottom';
+ } else {
+ $align['vertical'] = 'center';
+ }
+
+ if (($alignment & IMAGE_GRAPH_ALIGN_LEFT) != 0) {
+ $align['horizontal'] = 'left';
+ } else if (($alignment & IMAGE_GRAPH_ALIGN_RIGHT) != 0) {
+ $align['horizontal'] = 'right';
+ } else {
+ $align['horizontal'] = 'center';
+ }
+
+ $this->_canvas->setFont($font);
+ $this->_canvas->addText(array('x' => $x, 'y' => $y, 'text' => $text, 'alignment' => $align));
+ }
+
+ /**
+ * Output the element to the canvas
+ *
+ * @return bool Was the output 'good' (true) or 'bad' (false).
+ * @see Image_Graph_Common
+ * @access private
+ */
+ function _done()
+ {
+ $background = $this->_getBackground();
+ $border = $this->_getBorderStyle();
+ if (($background) || ($border)) {
+ $this->_canvas->rectangle(array('x0' => $this->_left, 'y0' => $this->_top, 'x1' => $this->_right, 'y1' => $this->_bottom));
+ }
+
+ $result = parent::_done();
+
+ if ($this->_shadow !== false) {
+ $this->_displayShadow();
+ }
+
+ return $result;
+ }
+
+}
+?> \ No newline at end of file