styles = []; $this->colors = []; $this->fonts = []; if ($width !== 0 && $height !== 0) { $this->gd = imagecreate($width, $height); $this->_getColor('white'); } $this->format = $format; $this->width = $width; $this->height = $height; } public function addLink($target, $left, $top, $right, $bottom, $title = null) // {{{2 { $this->_convertPosition($left, $top); $this->_convertPosition($right, $bottom); $target = htmlspecialchars($target); $title = htmlspecialchars($title); $this->imageMap .= "\n"; } public function drawLine($x1, $y1, $x2, $y2, $style) // {{{2 { $this->_convertPosition($x1, $y1); $this->_convertPosition($x2, $y2); imagesetthickness($this->gd, $style['line-width']); imageline($this->gd, $x1, $y1, $x2, $y2, $style['line']); } public function drawRectangle($left, $top, $right, $bottom, $style) // {{{2 { if ($top > $bottom) { // Filled rect has a problem when coordinates are inverted. $a = $top; $top = $bottom; $bottom = $a; } if ($left > $right) { // Filled rect has a problem when coordinates are inverted. $a = $left; $left = $right; $right = $a; } $this->_convertPosition($left, $top); $this->_convertPosition($right, $bottom); if (isset($style['fill'])) { imagefilledrectangle($this->gd, $left, $top, $right, $bottom, $style['fill']); } imagesetthickness($this->gd, $style['line-width']); imagerectangle($this->gd, $left, $top, $right, $bottom, $style['line']); } public function drawPie($centerX, $centerY, $radius, $begin, $end, $style) // {{{2 { $radius = $radius * 2; if ($begin != 0 || $end != 360) { $tmp = -$begin; $begin = -$end; $end = $tmp; } $this->_convertPosition($centerX, $centerY); $radius = $radius * min($this->width, $this->height); imagefilledarc($this->gd, $centerX, $centerY, $radius, $radius, $begin, $end, $style['fill'], IMG_ARC_PIE); imagesetthickness($this->gd, $style['line-width']); imagefilledarc($this->gd, $centerX, $centerY, $radius, $radius, $begin, $end, $style['line'], IMG_ARC_NOFILL | IMG_ARC_EDGED); } public function drawText($text, $left, $right, $height, $style) // {{{2 { $h = $height; // Creating duplicate (temp) $this->_convertPosition($left, $height); $this->_convertPosition($right, $h); switch ($style['align']) { case 'left': $this->_drawLeftText($text, $left, $height, $style); break; case 'center': $this->_drawCenterText($text, $left, $right, $height, $style); break; case 'right': $this->_drawRightText($text, $right, $height, $style); break; } } public function getTextWidth($text, $style) // {{{2 { return imagefontwidth($style['font']) * strlen($text) / $this->width; } public function getTextHeight($style) // {{{2 { return imagefontheight($style['font']) / $this->height; } public function getStyle($name) // {{{2 { if (isset($this->styles[$name])) { return $this->styles[$name]; } return $this->styles[$name] = $this->_findStyle($name); } public function httpOutput($filename) // {{{2 { switch ($this->format) { case 'png': header("Content-type: image/png"); imagepng($this->gd); break; case 'jpg': header("Content-type: image/jpeg"); imagejpeg($this->gd); break; default: echo "Unknown Format: {$this->format}\n"; } imagedestroy($this->gd); } public function writeToStream($stream) // {{{2 { ob_start(); switch ($this->format) { case 'png': imagepng($this->gd); break; case 'jpg': imagejpeg($this->gd); break; default: echo "Unknown Format: {$this->format}\n"; } fwrite($stream, ob_get_contents()); ob_end_clean(); imagedestroy($this->gd); } public function getMapContent() // {{{2 { return $this->imageMap; } public function _convertLength($value, $type) // {{{2 { // $type is either 'width' or 'height' // $value is a 0-1 float return floor($value * $this->$type); } public function _convertPosition(&$x, &$y) // {{{2 { // Parameters passed by ref! $x = $this->_convertLength($x, 'width'); $y = $this->_convertLength($y, 'height'); } public function _findStyle($name) // {{{2 { $parts = explode('-', $name); $style = []; switch ($parts[0]) { case 'Thin': $style['line-width'] = 1; array_shift($parts); break; case 'Bold': $style['line-width'] = 2; array_shift($parts); break; case 'Bolder': $style['line-width'] = 3; array_shift($parts); break; case 'Large': $style['font'] = 5; array_shift($parts); break; case 'Small': $style['font'] = 2; array_shift($parts); break; case 'Normal': array_shift($parts); break; default: if ($parts[0] == 'Text') { $style['font'] = 4; } else { $style['line-width'] = 1; } break; } switch ($parts[0]) { case 'LineStroke': $style['line'] = $this->_getColor($parts[1]); break; case 'FillStroke': $style['fill'] = $this->_getColor($parts[1]); $style['line'] = $this->_getColor('Black'); break; case 'Text': if (! isset($parts[1])) { $parts[1] = null; } switch ($parts[1]) { case 'Center': $style['align'] = 'center'; break; case 'Right': $style['align'] = 'right'; break; case 'Left': default: $style['align'] = 'left'; break; } break; default: return GRenderer::getStyle($name); } return $style; } public function _getColor($name) // {{{2 { $name = strtolower($name); if (isset($this->colors[$name])) { return $this->colors[$name]; } return $this->colors[$name] = $this->_findColor($name); } public function _findColor($name) // {{{2 { $color = $this->_getRawColor($name); return imagecolorallocate($this->gd, (int)$color['r'], (int)$color['g'], (int)$color['b']); } public function _drawLeftText($string, $left, $height, $style) // {{{2 { imagestring($this->gd, $style['font'], $left, $height, $string, $this->_getColor('Black')); } public function _drawCenterText($string, $left, $right, $height, $style) // {{{2 { $width = imagefontwidth($style['font']) * strlen($string); $x = ( $right - $left ) / 2 + $left - $width / 2; imagestring($this->gd, $style['font'], $x, $height, $string, $this->_getColor('Black')); } public function _drawRightText($string, $right, $height, $style) // {{{2 { $width = imagefontwidth($style['font']) * strlen($string); $x = $right - $width; imagestring($this->gd, $style['font'], $x, $height, $string, $this->_getColor('Black')); } }