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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
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 15:39:28 +0000