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Diffstat (limited to 'library/Icinga/Chart/Render/LayoutBox.php')
| -rw-r--r-- | library/Icinga/Chart/Render/LayoutBox.php | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/library/Icinga/Chart/Render/LayoutBox.php b/library/Icinga/Chart/Render/LayoutBox.php new file mode 100644 index 0000000..fa49461 --- /dev/null +++ b/library/Icinga/Chart/Render/LayoutBox.php @@ -0,0 +1,200 @@ +<?php +/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */ + +namespace Icinga\Chart\Render; + +use Icinga\Chart\Format; + +/** + * Layout class encapsulating size, padding and margin information + */ +class LayoutBox +{ + /** + * Padding index for top padding + */ + const PADDING_TOP = 0; + + /** + * Padding index for right padding + */ + const PADDING_RIGHT = 1; + + /** + * Padding index for bottom padding + */ + const PADDING_BOTTOM = 2; + + /** + * Padding index for left padding + */ + const PADDING_LEFT = 3; + + /** + * The height of this layout element + * + * @var int + */ + private $height; + + /** + * The width of this layout element + * + * @var int + */ + private $width; + + /** + * The x position of this layout + * + * @var int + */ + private $x; + + /** + * The y position of this layout + * + * @var int + */ + private $y; + + /** + * The padding of this layout + * + * @var array + */ + private $padding = array(0, 0, 0, 0); + + /** + * Create this layout box + * + * Note that x, y, width and height are relative: x with 0 means leftmost, x with 100 means rightmost + * + * @param int $x The relative x coordinate + * @param int $y The relative y coordinate + * @param int $width The optional, relative width + * @param int $height The optional, relative height + */ + public function __construct($x, $y, $width = null, $height = null) + { + $this->height = $height ? $height : 100; + $this->width = $width ? $width : 100; + $this->x = $x; + $this->y = $y; + } + + /** + * Set a padding to all four sides uniformly + * + * @param int $padding The padding to set for all four sides + */ + public function setUniformPadding($padding) + { + $this->padding = array($padding, $padding, $padding, $padding); + } + + /** + * Set the padding for this LayoutBox + * + * @param int $top The top side padding + * @param int $right The right side padding + * @param int $bottom The bottom side padding + * @param int $left The left side padding + */ + public function setPadding($top, $right, $bottom, $left) + { + $this->padding = array($top, $right, $bottom, $left); + } + + /** + * Return a string containing the SVG transform attribute values for the padding + * + * @param RenderContext $ctx The context to determine the translation coordinates + * + * @return string The transformation string + */ + public function getInnerTransform(RenderContext $ctx) + { + list($translateX, $translateY) = $ctx->toAbsolute( + $this->padding[self::PADDING_LEFT] + $this->getX(), + $this->padding[self::PADDING_TOP] + $this->getY() + ); + list($scaleX, $scaleY) = $ctx->paddingToScaleFactor($this->padding); + + $scaleX *= $this->getWidth()/100; + $scaleY *= $this->getHeight()/100; + return sprintf( + 'translate(%s, %s) scale(%s, %s)', + Format::formatSVGNumber($translateX), + Format::formatSVGNumber($translateY), + Format::formatSVGNumber($scaleX), + Format::formatSVGNumber($scaleY) + ); + } + + /** + * String representation for this Layout, for debug purposes + * + * @return string A string containing the bounds of this LayoutBox + */ + public function __toString() + { + return sprintf( + 'Rectangle: x: %s y: %s, height: %s, width: %s', + $this->x, + $this->y, + $this->height, + $this->width + ); + } + + /** + * Return a four element array with the padding + * + * @return array The padding of this LayoutBox + */ + public function getPadding() + { + return $this->padding; + } + + /** + * Return the height of this LayoutBox + * + * @return int The height of this box + */ + public function getHeight() + { + return $this->height; + } + + /** + * Return the width of this LayoutBox + * + * @return int The width of this box + */ + public function getWidth() + { + return $this->width; + } + + /** + * Return the x position of this LayoutBox + * + * @return int The x position of this box + */ + public function getX() + { + return $this->x; + } + + /** + * Return the y position of this LayoutBox + * + * @return int The y position of this box + */ + public function getY() + { + return $this->y; + } +} |