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<?php |
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/** |
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* Copyright (C) 2015-2023 Graham Breach |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/** |
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* For more information, please contact <graham@goat1000.com> |
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*/ |
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|
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namespace Goat1000\SVGGraph; |
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|
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class DataLabels { |
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|
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protected $graph; |
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protected $have_filters = false; |
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private $labels = []; |
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private $max_values = []; |
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private $min_values = []; |
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private $start_indices = []; |
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private $end_indices = []; |
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private $peak_indices = []; |
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private $trough_indices = []; |
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private $directions = []; |
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private $last = []; |
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private $max_labels = 1000; |
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private $coords = null; |
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|
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private $semantic_classes; |
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private $units_before; |
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private $units; |
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private $filter; |
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private $same_size; |
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private $callback; |
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|
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/** |
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* Details of each label type |
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*/ |
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private $types_info = [ |
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'box' => ['shape' => 'boxLabel', 'tail' => false, 'pad' => true], |
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'bubble' => ['shape' => 'bubbleLabel', 'tail' => true, 'pad' => true], |
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'circle' => ['shape' => 'circleLabel', 'tail' => false, 'pad' => true], |
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'line' => ['shape' => 'lineLabel', 'tail' => true, 'pad' => false], |
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'line2' => ['shape' => 'lineLabel2', 'tail' => true, 'pad' => true], |
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'linebox' => ['shape' => 'boxLineLabel', 'tail' => true, 'pad' => true], |
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'linecircle' => ['shape' => 'circleLineLabel', 'tail' => true, 'pad' => true], |
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'linesquare' => ['shape' => 'squareLineLabel', 'tail' => true, 'pad' => true], |
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'plain' => ['shape' => null, 'tail' => false, 'pad' => false], |
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'square' => ['shape' => 'squareLabel', 'tail' => false, 'pad' => true], |
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]; |
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|
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/** |
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* Mapping between label style array members and options |
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*/ |
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protected $style_map = [ |
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'type' => 'data_label_type', |
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'font' => 'data_label_font', |
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'font_size' => 'data_label_font_size', |
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'font_adjust' => 'data_label_font_adjust', |
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'font_weight' => 'data_label_font_weight', |
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'colour' => 'data_label_colour', |
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'altcolour' => 'data_label_colour_outside', |
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'back_colour' => 'data_label_back_colour', |
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'back_altcolour' => 'data_label_back_colour_outside', |
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'space' => 'data_label_space', |
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'angle' => 'data_label_angle', |
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'pad_x' => 'data_label_padding_x', |
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'pad_y' => 'data_label_padding_y', |
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'round' => 'data_label_round', |
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'stroke' => 'data_label_outline_colour', |
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'stroke_width' => 'data_label_outline_thickness', |
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'fill' => 'data_label_fill', |
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'tail_width' => 'data_label_tail_width', |
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'tail_length' => 'data_label_tail_length', |
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'tail_end' => 'data_label_tail_end', |
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'tail_end_angle' => 'data_label_tail_end_angle', |
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'tail_end_width' => 'data_label_tail_end_width', |
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'shadow_opacity' => 'data_label_shadow_opacity', |
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'opacity' => 'data_label_opacity', |
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'line_spacing' => 'data_label_line_spacing', |
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'align' => 'data_label_align', |
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]; |
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|
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/** |
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* Options that are colours, so need translation |
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*/ |
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protected $colour_options = [ |
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'colour', 'altcolour', 'back_colour', 'back_altcolour', 'stroke', 'fill', |
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]; |
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|
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function __construct(&$graph) |
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{ |
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$this->graph =& $graph; |
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$this->filter = $graph->getOption('data_label_filter'); |
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$this->have_filters = (!empty($this->filter) && $this->filter !== 'all'); |
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|
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$max_labels = $graph->getOption('data_label_max_count'); |
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if($max_labels >= 1) |
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$this->max_labels = (int)$max_labels; |
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$this->semantic_classes = $graph->getOption('semantic_classes'); |
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$this->units_before = $graph->getOption('units_before_label'); |
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$this->units = $graph->getOption('units_label'); |
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$this->same_size = $graph->getOption('data_label_same_size'); |
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$this->callback = $graph->getOption('data_label_callback'); |
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} |
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|
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/** |
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* Adds a label to the list |
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*/ |
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public function addLabel($dataset, $index, &$item, $x, $y, $w, $h, |
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$id = null, $content = null, $fade_in = null, $click = null) |
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{ |
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if(!isset($this->labels[$dataset])) |
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$this->labels[$dataset] = []; |
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$this->labels[$dataset][$index] = [ |
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'item' => $item, 'id' => $id, 'content' => $content, |
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'x' => $x, 'y' => $y, 'width' => $w, 'height' => $h, |
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'fade' => $fade_in, 'click' => $click, |
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]; |
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|
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if($this->have_filters) |
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$this->setupFilters($dataset, $index, $item->value); |
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} |
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|
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/** |
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* Adds a content (non-data) label |
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*/ |
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public function addContentLabel($dataset, $index, $x, $y, $w, $h, $content) |
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{ |
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if(!isset($this->labels[$dataset])) |
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$this->labels[$dataset] = []; |
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$this->labels[$dataset][$index] = [ |
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'item' => null, 'id' => null, 'content' => $content, |
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'x' => $x, 'y' => $y, 'width' => $w, 'height' => $h, |
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'fade' => null, 'click' => null, |
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]; |
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} |
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|
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/** |
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* Adds a user-defined label from a label option |
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*/ |
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public function addUserLabel($label_array) |
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{ |
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if(!isset($this->labels['_user'])) |
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$this->labels['_user'] = []; |
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|
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if(!isset($label_array[0]) || !isset($label_array[1]) || !isset($label_array[2])) |
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throw new \Exception('Malformed label option - required fields missing'); |
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|
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$x = $label_array[0]; |
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$y = $label_array[1]; |
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$content = $label_array[2]; |
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$w = 0; |
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$h = 0; |
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// merge the options with required fields |
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$this->labels['_user'][] = array_merge($label_array, [ |
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'item' => null, 'id' => null, 'content' => $content, |
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'x' => $x, 'y' => $y, 'width' => $w, 'height' => $h, |
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'fade' => null, 'click' => null, |
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]); |
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} |
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|
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/** |
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* Returns label details |
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*/ |
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public function getLabel($dataset, $index) |
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{ |
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if(isset($this->labels[$dataset][$index])) |
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return $this->labels[$dataset][$index]; |
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return null; |
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} |
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|
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/** |
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* Updates filter information from label |
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*/ |
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protected function setupFilters($dataset, $index, $value) |
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{ |
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// set up filtering info |
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if(!isset($this->max_values[$dataset]) || |
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$this->max_values[$dataset] < $value) |
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$this->max_values[$dataset] = $value; |
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if(!isset($this->min_values[$dataset]) || |
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$this->min_values[$dataset] > $value) |
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$this->min_values[$dataset] = $value; |
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if(!isset($this->start_indices[$dataset]) || |
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$this->start_indices[$dataset] > $index) |
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$this->start_indices[$dataset] = $index; |
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if(!isset($this->end_indices[$dataset]) || |
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$this->end_indices[$dataset] < $index) |
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$this->end_indices[$dataset] = $index; |
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|
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// peaks and troughs are a bit more complicated |
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if(!isset($this->last[$dataset])) { |
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$this->last[$dataset] = [$index, $value]; |
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$this->directions[$dataset] = null; |
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$this->peak_indices[$dataset] = []; |
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$this->trough_indices[$dataset] = []; |
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return; |
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} |
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|
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if($this->last[$dataset][1] != $value) { |
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$last = $this->last[$dataset]; |
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$diff = $value - $last[1]; |
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$direction = ($diff > 0); |
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if($this->directions[$dataset] !== null && |
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$direction !== $this->directions[$dataset]) { |
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if($diff > 0) |
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$this->trough_indices[$dataset][] = $last[0]; |
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else |
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$this->peak_indices[$dataset][] = $last[0]; |
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} |
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$this->last[$dataset] = [$index, $value]; |
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$this->directions[$dataset] = $direction; |
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} |
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} |
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|
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|
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/** |
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* Load user-defined labels |
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*/ |
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public function load(&$settings) |
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{ |
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if(!is_array($settings['label']) || !isset($settings['label'][0])) |
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throw new \Exception('Malformed label option'); |
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|
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if(!is_array($settings['label'][0])) { |
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$this->addUserLabel($settings['label']); |
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$this->coords = new Coords($this->graph); |
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return; |
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} |
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$count = 0; |
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foreach($settings['label'] as $label) { |
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$this->addUserLabel($label); |
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++$count; |
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} |
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if($count) |
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$this->coords = new Coords($this->graph); |
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} |
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|
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/** |
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* Returns all the labels as a string |
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*/ |
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public function getLabels() |
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{ |
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$filter_count = is_array($this->filter) ? count($this->filter) : 1; |
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$label_list = []; |
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foreach($this->labels as $dataset => $label_set) { |
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|
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$set_filter = 'all'; |
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if(is_numeric($dataset)) { |
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$set_filter = is_array($this->filter) ? |
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$this->filter[$dataset % $filter_count] : $this->filter; |
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} |
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$count = 0; |
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foreach($label_set as $i => $label) { |
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if($this->filter($set_filter, $dataset, $label, $i)) { |
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$content = $this->getLabelText($dataset, $label); |
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if($content !== null && $content != '') { |
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|
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list($w, $h) = $this->measureLabel($content, $dataset, $i, $label); |
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|
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$label_list[] = compact('content', 'w', 'h', 'dataset', 'i', 'label'); |
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if(++$count >= $this->max_labels) |
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break; |
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} |
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} |
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} |
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} |
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|
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$this->setLabelSizes($label_list); |
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$labels = ''; |
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foreach($label_list as $l) { |
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$labels .= $this->drawLabel($l['content'], $l['w'], $l['h'], |
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$l['dataset'], $l['i'], $l['label']); |
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} |
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if($labels != '') { |
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$group = []; |
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if($this->semantic_classes) |
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$group['class'] = 'data-labels'; |
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$labels = $this->graph->element('g', $group, null, $labels); |
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} |
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return $labels; |
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} |
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|
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/** |
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* Adjusts the label sizes |
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*/ |
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protected function setLabelSizes(&$labels) |
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{ |
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if(!$this->same_size) |
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return; |
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|
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// globally equal sizes |
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if(!is_array($this->same_size)) { |
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$max_w = 0; |
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$max_h = 0; |
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foreach($labels as $l) { |
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if(is_numeric($l['dataset'])) { |
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if($l['w'] > $max_w) |
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$max_w = $l['w']; |
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if($l['h'] > $max_h) |
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$max_h = $l['h']; |
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} |
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} |
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|
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foreach($labels as $k => $l) { |
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if(is_numeric($l['dataset'])) { |
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$labels[$k]['w'] = $max_w; |
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$labels[$k]['h'] = $max_h; |
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} |
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} |
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return; |
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} |
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|
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// per-dataset maxima (20 datasets should be enough for anybody) |
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$max_w = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; |
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$max_h = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; |
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|
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foreach($labels as $l) { |
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$d = $l['dataset']; |
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if(is_numeric($d)) { |
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if($l['w'] > $max_w[$d]) |
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$max_w[$d] = $l['w']; |
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if($l['h'] > $max_h[$d]) |
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$max_h[$d] = $l['h']; |
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} |
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} |
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|
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foreach($labels as $k => $l) { |
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$d = $l['dataset']; |
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if(is_numeric($d) && |
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$this->graph->getOption(['data_label_same_size', $d])) { |
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$labels[$k]['w'] = $max_w[$d]; |
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$labels[$k]['h'] = $max_h[$d]; |
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} |
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} |
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} |
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|
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/** |
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* Returns the text for a label |
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*/ |
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protected function getLabelText($dataset, &$gobject) |
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{ |
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if($gobject['item'] === null && empty($gobject['content'])) |
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return ''; |
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|
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if($gobject['item'] === null) |
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return (string)$gobject['content']; |
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|
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if(is_callable($this->callback)) { |
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$content = call_user_func($this->callback, $dataset, |
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$gobject['item']->key, $gobject['item']->value); |
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return $content === null ? '' : $content; |
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} |
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|
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$content = $gobject['item']->label; |
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if($content !== null) |
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return $content; |
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|
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if($gobject['content'] !== null) |
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return $gobject['content']; |
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|
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$n = new Number($gobject['item']->value, $this->units, $this->units_before); |
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return $n->format(); |
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} |
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|
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/** |
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* Returns the style details for a label |
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*/ |
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protected function getStyle($dataset, $index, &$gobject) |
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{ |
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// global styles filled in by graph class |
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$style = $this->graph->dataLabelStyle($dataset, $index, $gobject['item']); |
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|
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// structured styles and user defined label styles |
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if($gobject['item'] !== null) |
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$this->itemStyles($style, $gobject['item'], $index, $dataset); |
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elseif($dataset === '_user') |
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$this->userStyles($style, $gobject); |
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|
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// deal with fill/fillColour |
| 393 |
foreach($this->colour_options as $s) { |
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if(isset($style[$s]) && is_string($style[$s]) && |
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strpos($style[$s], 'fill') !== false) { |
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$cg = new ColourGroup($this->graph, $gobject['item'], $index, $dataset, |
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$style[$s], null, null, true); |
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$style[$s] = $cg->stroke(); |
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} |
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} |
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return $style; |
| 402 |
} |
| 403 |
|
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/** |
| 405 |
* Returns the font size and line spacing for a style as an array |
| 406 |
*/ |
| 407 |
protected function getFontSize($style) |
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{ |
| 409 |
$font_size = $line_spacing = max(4, Number::units($style['font_size'])); |
| 410 |
if($style['line_spacing'] !== null) |
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$line_spacing = max(1, Number::units($style['line_spacing'])); |
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return [$font_size, $line_spacing]; |
| 413 |
} |
| 414 |
|
| 415 |
/** |
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* Returns size of a label as array (w, h) |
| 417 |
*/ |
| 418 |
protected function measureLabel($content, $dataset, $index, &$gobject) |
| 419 |
{ |
| 420 |
$style = $this->getStyle($dataset, $index, $gobject); |
| 421 |
|
| 422 |
// get size of text |
| 423 |
list($font_size, $line_spacing) = $this->getFontSize($style); |
| 424 |
$svg_text = new Text($this->graph, $style['font'], $style['font_adjust']); |
| 425 |
list($w, $h) = $svg_text->measure($content, $font_size, $style['angle'], |
| 426 |
$line_spacing); |
| 427 |
|
| 428 |
// if this label type uses padding, add it in |
| 429 |
if($this->getTypeInfo($style['type'], 'pad')) { |
| 430 |
$w += $style['pad_x'] * 2; |
| 431 |
$h += $style['pad_y'] * 2; |
| 432 |
} |
| 433 |
|
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return [$w, $h]; |
| 435 |
} |
| 436 |
|
| 437 |
/** |
| 438 |
* Returns some or all info about a type |
| 439 |
*/ |
| 440 |
protected function getTypeInfo($type, $field = null) |
| 441 |
{ |
| 442 |
if(!isset($this->types_info[$type])) |
| 443 |
$type = 'plain'; |
| 444 |
$type_info = $this->types_info[$type]; |
| 445 |
return $field === null ? $type_info : $type_info[$field]; |
| 446 |
} |
| 447 |
|
| 448 |
/** |
| 449 |
* Returns the foreground and background colours, dependent on relative |
| 450 |
* position |
| 451 |
*/ |
| 452 |
protected function getColours($hpos, $vpos, $style) |
| 453 |
{ |
| 454 |
// if the position is outside, use the alternative colours |
| 455 |
$colour = new Colour($this->graph, $style['colour']); |
| 456 |
$back_colour = new Colour($this->graph, $style['back_colour']); |
| 457 |
if(strpos($hpos . $vpos, 'o') !== false) { |
| 458 |
$alt = new Colour($this->graph, $style['altcolour']); |
| 459 |
$back_alt = new Colour($this->graph, $style['back_altcolour']); |
| 460 |
if(!$alt->isNone()) |
| 461 |
$colour = $alt; |
| 462 |
if(!$back_alt->isNone()) |
| 463 |
$back_colour = $back_alt; |
| 464 |
} |
| 465 |
return [$colour, $back_colour]; |
| 466 |
} |
| 467 |
|
| 468 |
/** |
| 469 |
* Draws a label |
| 470 |
*/ |
| 471 |
protected function drawLabel($content, $label_w, $label_h, $dataset, $index, |
| 472 |
&$gobject) |
| 473 |
{ |
| 474 |
$style = $this->getStyle($dataset, $index, $gobject); |
| 475 |
$style['target'] = [$gobject['x'], $gobject['y']]; |
| 476 |
|
| 477 |
$space = (float)$style['space']; |
| 478 |
$pos = null; |
| 479 |
if($dataset === '_user') { |
| 480 |
// user label, so convert coordinates |
| 481 |
$pos = isset($gobject['position']) ? $gobject['position'] : 'above'; |
| 482 |
$xy = $this->coords->transformCoords($gobject['x'], $gobject['y']); |
| 483 |
$gobject['x'] = $xy[0]; |
| 484 |
$gobject['y'] = $xy[1]; |
| 485 |
$style['target'] = [$gobject['x'], $gobject['y']]; |
| 486 |
} else { |
| 487 |
// try to get position from item |
| 488 |
if($gobject['item'] !== null) |
| 489 |
$pos = $gobject['item']->data_label_position; |
| 490 |
|
| 491 |
// find out from graph class where this label should go |
| 492 |
if($pos === null) { |
| 493 |
$label_wp = $label_w + $space * 2; |
| 494 |
$label_hp = $label_h + $space * 2; |
| 495 |
|
| 496 |
// get the label position and the target for tail |
| 497 |
list($pos, $target) = $this->graph->dataLabelPosition($dataset, |
| 498 |
$index, $gobject['item'], $gobject['x'], $gobject['y'], |
| 499 |
$gobject['width'], $gobject['height'], $label_wp, $label_hp); |
| 500 |
$style['target'] = $target; |
| 501 |
} |
| 502 |
} |
| 503 |
|
| 504 |
// convert position string to an actual location |
| 505 |
list($x, $y, $anchor, $hpos, $vpos) = Graph::relativePosition($pos, |
| 506 |
$gobject['y'], $gobject['x'], |
| 507 |
$gobject['y'] + $gobject['height'], $gobject['x'] + $gobject['width'], |
| 508 |
$label_w, $label_h, $space, true); |
| 509 |
|
| 510 |
list($colour, $back_colour) = $this->getColours($hpos, $vpos, $style); |
| 511 |
list($font_size, $line_spacing) = $this->getFontSize($style); |
| 512 |
$text = [ |
| 513 |
'font-family' => $style['font'], |
| 514 |
'font-size' => $font_size, |
| 515 |
'fill' => $colour, |
| 516 |
]; |
| 517 |
|
| 518 |
$label_markup = ''; |
| 519 |
$label_pad_x = $label_pad_y = 0; |
| 520 |
$type_info = $this->getTypeInfo($style['type']); |
| 521 |
if($type_info['pad']) { |
| 522 |
$label_pad_x = $style['pad_x']; |
| 523 |
$label_pad_y = $style['pad_y']; |
| 524 |
} |
| 525 |
|
| 526 |
// need text size without padding, rotation, etc. |
| 527 |
$svg_text = new Text($this->graph, $style['font'], $style['font_adjust']); |
| 528 |
list($tbw, $tbh) = $svg_text->measure($content, $font_size, 0, $line_spacing); |
| 529 |
$text_baseline = $svg_text->baseline($font_size); |
| 530 |
|
| 531 |
// allow overriding text alignment |
| 532 |
$align_map = ['left' => 'start', 'centre' => 'middle', 'right' => 'end']; |
| 533 |
if($style['align'] !== null && isset($align_map[$style['align']])) { |
| 534 |
$anchor_new = $align_map[$style['align']]; |
| 535 |
if($anchor_new != $anchor) { |
| 536 |
// adjust label position for new anchor |
| 537 |
$pos_remap = [ |
| 538 |
'middle' => ['start' => -0.5, 'end' => 0.5], |
| 539 |
'start' => ['middle' => 0.5, 'end' => 1.0], |
| 540 |
'end' => ['start' => -1.0, 'middle' => -0.5], |
| 541 |
]; |
| 542 |
|
| 543 |
$x += ($label_w * $pos_remap[$anchor][$anchor_new]); |
| 544 |
$anchor = $anchor_new; |
| 545 |
} |
| 546 |
} |
| 547 |
|
| 548 |
$text['y'] = $y + ($label_h - $tbh) / 2 + $text_baseline; |
| 549 |
if($style['angle'] != 0) { |
| 550 |
|
| 551 |
if($anchor == 'middle') { |
| 552 |
$text['x'] = $x; |
| 553 |
} elseif($anchor == 'start') { |
| 554 |
$text['x'] = $x + ($label_w - $tbw) / 2; |
| 555 |
} else { |
| 556 |
$text['x'] = $x - ($label_w - $tbw) / 2; |
| 557 |
} |
| 558 |
|
| 559 |
} else { |
| 560 |
|
| 561 |
if($anchor == 'start') { |
| 562 |
$text['x'] = $x + $label_pad_x; |
| 563 |
} elseif($anchor == 'end') { |
| 564 |
$text['x'] = $x - $label_pad_x; |
| 565 |
} else { |
| 566 |
$text['x'] = $x; |
| 567 |
} |
| 568 |
} |
| 569 |
|
| 570 |
// make x right for bounding box |
| 571 |
if($anchor == 'middle') { |
| 572 |
$x -= $label_w / 2; |
| 573 |
} elseif($anchor == 'end') { |
| 574 |
$x -= $label_w; |
| 575 |
} |
| 576 |
|
| 577 |
if($style['angle'] != 0) { |
| 578 |
// rotate text around centre of box |
| 579 |
$rx = $x + $label_w / 2; |
| 580 |
$ry = $y + $label_h / 2; |
| 581 |
$xform = new Transform; |
| 582 |
$xform->rotate($style['angle'], $rx, $ry); |
| 583 |
$text['transform'] = $xform; |
| 584 |
} |
| 585 |
|
| 586 |
if($anchor != 'start') |
| 587 |
$text['text-anchor'] = $anchor; |
| 588 |
if(!empty($style['font_weight']) && $style['font_weight'] != 'normal') |
| 589 |
$text['font-weight'] = $style['font_weight']; |
| 590 |
|
| 591 |
$surround = []; |
| 592 |
$element = null; |
| 593 |
$shape_func = null; |
| 594 |
$need_tail = false; |
| 595 |
|
| 596 |
if($type_info['shape']) { |
| 597 |
if($type_info['tail']) { |
| 598 |
$style['tail_direction'] = $this->graph->dataLabelTailDirection($dataset, |
| 599 |
$index, $hpos, $vpos); |
| 600 |
} |
| 601 |
|
| 602 |
// make the shape |
| 603 |
$element = $this->{$type_info['shape']}($x, $y, $label_w, $label_h, |
| 604 |
$style, $surround); |
| 605 |
if($element) { |
| 606 |
$surround['stroke'] = new Colour($this->graph, $style['stroke']); |
| 607 |
if($style['stroke_width'] != 1) |
| 608 |
$surround['stroke-width'] = (float)$style['stroke_width']; |
| 609 |
|
| 610 |
// add shadow if not completely transparent |
| 611 |
if($style['shadow_opacity'] > 0) { |
| 612 |
$shadow = $surround; |
| 613 |
$offset = 2 + floor($style['stroke_width'] / 2); |
| 614 |
$xform = new Transform; |
| 615 |
$xform->translate($offset, $offset); |
| 616 |
$shadow['transform'] = $xform; |
| 617 |
$shadow['fill'] = $shadow['stroke'] = '#000'; |
| 618 |
$shadow['opacity'] = $style['shadow_opacity']; |
| 619 |
$label_markup .= $this->graph->element($element, $shadow); |
| 620 |
} |
| 621 |
$label_markup .= $this->graph->element($element, $surround); |
| 622 |
} |
| 623 |
} |
| 624 |
|
| 625 |
//$back_colour = new Colour($this, $back_colour); |
| 626 |
if(!$back_colour->isNone()) { |
| 627 |
$outline = [ |
| 628 |
'stroke-width' => '3px', |
| 629 |
'stroke' => $back_colour, |
| 630 |
'stroke-linejoin' => 'round', |
| 631 |
]; |
| 632 |
$t1 = array_merge($outline, $text); |
| 633 |
$label_markup .= $svg_text->text($content, $line_spacing, $t1); |
| 634 |
} |
| 635 |
$label_markup .= $svg_text->text($content, $line_spacing, $text); |
| 636 |
|
| 637 |
$group = []; |
| 638 |
if(isset($gobject['id']) && $gobject['id'] !== null) |
| 639 |
$group['id'] = $gobject['id']; |
| 640 |
|
| 641 |
// opacity is required when set or using click-show-hide |
| 642 |
$opacity = max(0, min(1, $style['opacity'])); |
| 643 |
if($opacity < 1 || $gobject['click'] == 'show') |
| 644 |
$group['opacity'] = $opacity; |
| 645 |
elseif($gobject['click'] == 'hide' || $gobject['fade']) |
| 646 |
$group['opacity'] = 0; |
| 647 |
|
| 648 |
$label_markup = $this->graph->element('g', $group, null, $label_markup); |
| 649 |
return $label_markup; |
| 650 |
} |
| 651 |
|
| 652 |
/** |
| 653 |
* Returns the mapping between style members and option names |
| 654 |
*/ |
| 655 |
public function getStyleMap() |
| 656 |
{ |
| 657 |
return $this->style_map; |
| 658 |
} |
| 659 |
|
| 660 |
/** |
| 661 |
* Individual label styles from the structured data item |
| 662 |
*/ |
| 663 |
protected function itemStyles(&$style, &$item, $index, $dataset) |
| 664 |
{ |
| 665 |
// overwrite any style options that the item has set |
| 666 |
$v = $item->data_label_padding; |
| 667 |
if($v !== null) |
| 668 |
$style['pad_x'] = $style['pad_y'] = $v; |
| 669 |
foreach($this->style_map as $s => $k) { |
| 670 |
$v = $item->data($k); |
| 671 |
if($v !== null) |
| 672 |
$style[$s] = $v; |
| 673 |
} |
| 674 |
} |
| 675 |
|
| 676 |
/** |
| 677 |
* Styles from the label option |
| 678 |
*/ |
| 679 |
protected function userStyles(&$style, &$label_array) |
| 680 |
{ |
| 681 |
// pad_x and pad_y will override single padding option |
| 682 |
if(isset($label_array['padding'])) |
| 683 |
$style['pad_x'] = $style['pad_y'] = $label_array['padding']; |
| 684 |
foreach($this->style_map as $s => $k) { |
| 685 |
// remove the 'data_label_' part |
| 686 |
$o = substr($k, 11); |
| 687 |
if(isset($label_array[$o])) |
| 688 |
$style[$s] = $label_array[$o]; |
| 689 |
} |
| 690 |
} |
| 691 |
|
| 692 |
/** |
| 693 |
* Returns TRUE if the label should be shown |
| 694 |
*/ |
| 695 |
protected function filter($filter, $dataset, &$label, $index) |
| 696 |
{ |
| 697 |
// non-numeric datasets are for additional labels, |
| 698 |
// empty filter does nothing |
| 699 |
if(!is_numeric($dataset) || empty($filter)) |
| 700 |
return true; |
| 701 |
|
| 702 |
$item =& $label['item']; |
| 703 |
|
| 704 |
// if the item has a show_label member, use it |
| 705 |
$struct_show = $item->show_label; |
| 706 |
if($struct_show !== null) |
| 707 |
return $struct_show; |
| 708 |
|
| 709 |
// if 'all' is in the list, others don't matter |
| 710 |
$filters = explode(' ', $filter); |
| 711 |
if(in_array('all', $filters, true)) |
| 712 |
return true; |
| 713 |
|
| 714 |
// an array of closures for filter tests |
| 715 |
$tests = [ |
| 716 |
'start' => function() use ($index, $dataset) { |
| 717 |
return $index == $this->start_indices[$dataset]; }, |
| 718 |
'end' => function() use ($index, $dataset) { |
| 719 |
return $index == $this->end_indices[$dataset]; }, |
| 720 |
'max' => function() use (&$item, $dataset) { |
| 721 |
return $item->value == $this->max_values[$dataset]; }, |
| 722 |
'min' => function() use (&$item, $dataset) { |
| 723 |
return $item->value == $this->min_values[$dataset]; }, |
| 724 |
'peaks' => function() use ($index, $dataset) { |
| 725 |
return in_array($index, $this->peak_indices[$dataset], true); }, |
| 726 |
'troughs' => function() use ($index, $dataset) { |
| 727 |
return in_array($index, $this->trough_indices[$dataset], true); }, |
| 728 |
'nonzero' => function() use (&$item) { return $item->value != 0; }, |
| 729 |
'none' => function() use (&$item) { |
| 730 |
return $item->label !== null && $item->label !== ''; }, |
| 731 |
]; |
| 732 |
|
| 733 |
foreach($filters as $f) { |
| 734 |
|
| 735 |
if(isset($tests[$f]) && $tests[$f]()) |
| 736 |
return true; |
| 737 |
|
| 738 |
// integer step |
| 739 |
if(is_numeric($f) && $index % (int)$f == 0) { |
| 740 |
return true; |
| 741 |
} else { |
| 742 |
// step with offset |
| 743 |
$parts = explode('+', $f); |
| 744 |
if(count($parts) == 2 && |
| 745 |
is_numeric($parts[0]) && is_numeric($parts[1]) && |
| 746 |
$parts[0] > 1 && $parts[1] < $parts[0] && |
| 747 |
$index % (int)$parts[0] == $parts[1]) |
| 748 |
return true; |
| 749 |
} |
| 750 |
} |
| 751 |
|
| 752 |
// default is to show nothing |
| 753 |
return false; |
| 754 |
} |
| 755 |
|
| 756 |
|
| 757 |
/** |
| 758 |
* Straight line label style |
| 759 |
*/ |
| 760 |
protected function lineLabel($x, $y, $w, $h, &$style, &$surround) |
| 761 |
{ |
| 762 |
$w2 = $w / 2; |
| 763 |
$h2 = $h / 2; |
| 764 |
$a = $style['tail_direction'] * M_PI / 180; |
| 765 |
|
| 766 |
if($style['round']) { |
| 767 |
$bbradius = sqrt($w2 * $w2 + $h2 * $h2); |
| 768 |
$w2a = $bbradius * cos($a); |
| 769 |
$h2a = $bbradius * sin($a); |
| 770 |
} else { |
| 771 |
// start at edge of text bounding box |
| 772 |
$w2a = $w2; |
| 773 |
$h2a = $w2 * tan($a); |
| 774 |
if(abs($h2a) > $h2) { |
| 775 |
$h2a = $h2; |
| 776 |
$w2a = $h2 / tan($a); |
| 777 |
} |
| 778 |
} |
| 779 |
if(($a < M_PI && $h2a < 0) || ($a > M_PI && $h2a > 0)) { |
| 780 |
$h2a = -$h2a; |
| 781 |
$w2a = -$w2a; |
| 782 |
} |
| 783 |
|
| 784 |
$x1 = $x + $w2 + $w2a; |
| 785 |
$y1 = $y + $h2 + $h2a; |
| 786 |
if($style['tail_length'] == 'auto') { |
| 787 |
list($x2, $y2) = $style['target']; |
| 788 |
// check line is outside bbox |
| 789 |
if($style['round']) { |
| 790 |
$llen = sqrt(pow($x2 - $x - $w2, 2) + pow($y2 - $y - $h2, 2)); |
| 791 |
if($llen < $bbradius) |
| 792 |
return ''; |
| 793 |
} else { |
| 794 |
if($x2 > $x && $x2 < $x + $w && $y2 > $y && $y2 < $y + $h) |
| 795 |
return ''; |
| 796 |
} |
| 797 |
} else { |
| 798 |
// make sure line is long enough to not look like part of text |
| 799 |
list($font_size) = $this->getFontSize($style); |
| 800 |
$llen = max($font_size, $style['tail_length']); |
| 801 |
$x2 = $x1 + ($llen * cos($a)); |
| 802 |
$y2 = $y1 + ($llen * sin($a)); |
| 803 |
} |
| 804 |
$surround['d'] = new PathData('M', $x1, $y1, 'L', $x2, $y2); |
| 805 |
return 'path'; |
| 806 |
} |
| 807 |
|
| 808 |
/** |
| 809 |
* Simple box label style |
| 810 |
*/ |
| 811 |
protected function boxLabel($x, $y, $w, $h, &$style, &$surround) |
| 812 |
{ |
| 813 |
$surround['x'] = $x; |
| 814 |
$surround['y'] = $y; |
| 815 |
$surround['width'] = $w; |
| 816 |
$surround['height'] = $h; |
| 817 |
if($style['round']) |
| 818 |
$surround['rx'] = $surround['ry'] = min((float)$style['round'], |
| 819 |
$h / 2, $w / 2); |
| 820 |
$surround['fill'] = new Colour($this->graph, $style['fill']); |
| 821 |
return 'rect'; |
| 822 |
} |
| 823 |
|
| 824 |
/** |
| 825 |
* Speech bubble label style |
| 826 |
*/ |
| 827 |
protected function bubbleLabel($x, $y, $w, $h, &$style, &$surround) |
| 828 |
{ |
| 829 |
// can't be more round than this! |
| 830 |
$round = min((float)$style['round'], $h / 3, $w / 3); |
| 831 |
$drop = max(2, (float)$style['tail_length']); |
| 832 |
$spread = min(max(2, (float)$style['tail_width']), $w - $round * 2); |
| 833 |
|
| 834 |
$vert = $h - $round * 2; |
| 835 |
$horz = $w - $round * 2; |
| 836 |
$start = new PathData('M', ($x + $w - $round), $y); |
| 837 |
$t = new PathData('z'); |
| 838 |
$r = new PathData('v', $vert); |
| 839 |
$b = new PathData('h', -$horz); |
| 840 |
$l = new PathData('v', -$vert); |
| 841 |
$tr = new PathData; |
| 842 |
$br = new PathData; |
| 843 |
$bl = new PathData; |
| 844 |
$tl = new PathData; |
| 845 |
if($round) { |
| 846 |
$tr->add('a', $round, $round, 90, 0, 1, $round, $round); |
| 847 |
$br->add('a', $round, $round, 90, 0, 1, -$round, $round); |
| 848 |
$bl->add('a', $round, $round, 90, 0, 1, -$round, -$round); |
| 849 |
$tl->add('a', $round, $round, 90, 0, 1, $round, -$round); |
| 850 |
} |
| 851 |
|
| 852 |
$direction = floor(($style['tail_direction'] + 22.5) * 8 / 360) % 8; |
| 853 |
$ddrop = 0.707 * $drop; // cos 45 |
| 854 |
$p1 = $ddrop + $spread * 0.707; |
| 855 |
$s2 = $spread / 2; |
| 856 |
$vcropped = $vert - $spread * 0.707 + $round; |
| 857 |
$hcropped = $horz - $spread * 0.707 + $round; |
| 858 |
switch($direction) { |
| 859 |
case 0 : |
| 860 |
$bside = $h / 2 - $s2 - $round; |
| 861 |
$r = new PathData('v', $bside, 'l', $drop, $s2, 'l', -$drop, $s2, 'v', $bside); |
| 862 |
break; |
| 863 |
case 1 : |
| 864 |
$r = new PathData('v', $vcropped); |
| 865 |
$br = new PathData('l', $ddrop, $p1, 'l', -$p1, -$ddrop); |
| 866 |
$b = new PathData('h', -$hcropped); |
| 867 |
break; |
| 868 |
case 2 : |
| 869 |
$bside = $w / 2 - $s2 - $round; |
| 870 |
$b = new PathData('h', -$bside, 'l', -$s2, $drop, 'l', -$s2, -$drop, 'h', -$bside); |
| 871 |
break; |
| 872 |
case 3 : |
| 873 |
$l = new PathData('v', -$vcropped); |
| 874 |
$bl = new PathData('l', -$p1, $ddrop, 'l', $ddrop, -$p1); |
| 875 |
$b = new PathData('h', -$hcropped); |
| 876 |
break; |
| 877 |
case 4 : |
| 878 |
$bside = $h / 2 - $s2 - $round; |
| 879 |
$l = new PathData('v', -$bside, 'l', -$drop, -$s2, 'l', $drop, -$s2, 'v', -$bside); |
| 880 |
break; |
| 881 |
case 5 : |
| 882 |
$l = new PathData('v', -$vcropped); |
| 883 |
$tl = new PathData('l', -$ddrop, -$p1, 'l', $p1, $ddrop); |
| 884 |
break; |
| 885 |
case 6 : |
| 886 |
$bside = $w / 2 - $s2 - $round; |
| 887 |
$t = new PathData('h', $bside, 'l', $s2, -$drop, 'l', $s2, $drop, 'z'); |
| 888 |
break; |
| 889 |
case 7 : |
| 890 |
$start = new PathData('M', ($x + $hcropped + $round), $y); |
| 891 |
$r = new PathData('v', $vcropped); |
| 892 |
$tr = new PathData('l', $p1, -$ddrop, 'l', -$ddrop, $p1); |
| 893 |
break; |
| 894 |
} |
| 895 |
$start->add($tr); |
| 896 |
$start->add($r); |
| 897 |
$start->add($br); |
| 898 |
$start->add($b); |
| 899 |
$start->add($bl); |
| 900 |
$start->add($l); |
| 901 |
$start->add($tl); |
| 902 |
$start->add($t); |
| 903 |
$surround['d'] = $start; |
| 904 |
$surround['fill'] = new Colour($this->graph, $style['fill']); |
| 905 |
return 'path'; |
| 906 |
} |
| 907 |
|
| 908 |
/** |
| 909 |
* Returns the cx, cy and radius for a round label |
| 910 |
*/ |
| 911 |
protected function calcRoundLabel($x, $y, $w, $h) |
| 912 |
{ |
| 913 |
$w2 = $w / 2; |
| 914 |
$h2 = $h / 2; |
| 915 |
$r = sqrt($w2 * $w2 + $h2 * $h2); |
| 916 |
return [$x + $w2, $y + $h2, $r]; |
| 917 |
} |
| 918 |
|
| 919 |
/** |
| 920 |
* Circular label style |
| 921 |
*/ |
| 922 |
protected function circleLabel($x, $y, $w, $h, &$style, &$surround) |
| 923 |
{ |
| 924 |
$params = $this->calcRoundLabel($x, $y, $w, $h); |
| 925 |
$surround['cx'] = $params[0]; |
| 926 |
$surround['cy'] = $params[1]; |
| 927 |
$surround['r'] = $params[2]; |
| 928 |
$surround['fill'] = new Colour($this->graph, $style['fill']); |
| 929 |
return 'circle'; |
| 930 |
} |
| 931 |
|
| 932 |
/** |
| 933 |
* Returns the tail target coordinates, angle and length for a box label, |
| 934 |
* or NULL if the tail would end inside the label. |
| 935 |
* Return value is array(array($x, $y), $angle, $length) |
| 936 |
*/ |
| 937 |
protected function getBoxTailTarget(&$style, $x1, $y1, $x2, $y2) |
| 938 |
{ |
| 939 |
$target = null; |
| 940 |
$length = $style['tail_length']; |
| 941 |
$cx = ($x1 + $x2) / 2; |
| 942 |
$cy = ($y1 + $y2) / 2; |
| 943 |
$w2 = $cx - $x1; |
| 944 |
$h2 = $cy - $y1; |
| 945 |
if($length == 'auto') { |
| 946 |
// just use the defined target |
| 947 |
$target = $style['target']; |
| 948 |
|
| 949 |
// check that target is outside the label |
| 950 |
$tx = $target[0]; $ty = $target[1]; |
| 951 |
if($tx >= $x1 && $tx <= $x2 && $ty >= $y1 && $ty <= $y2) |
| 952 |
return null; |
| 953 |
|
| 954 |
if($tx > $x2) { |
| 955 |
$dx = $tx - $x2; |
| 956 |
} elseif($tx < $x1) { |
| 957 |
$dx = $x1 - $tx; |
| 958 |
} else { |
| 959 |
$dx = abs($tx - $cx); |
| 960 |
} |
| 961 |
if($ty > $y2) { |
| 962 |
$dy = $ty - $y2; |
| 963 |
} elseif($ty < $y1) { |
| 964 |
$dy = $y1 - $ty; |
| 965 |
} else { |
| 966 |
$dy = abs($ty - $cy); |
| 967 |
} |
| 968 |
$length = sqrt($dx * $dx + $dy * $dy); |
| 969 |
$angle = atan2($ty - $cy, $tx - $cx); |
| 970 |
} else { |
| 971 |
// target is radius + tail length away |
| 972 |
if($length <= 0) |
| 973 |
return null; |
| 974 |
$angle = $style['tail_direction'] * M_PI / 180; |
| 975 |
|
| 976 |
$lx = $length * cos($angle); |
| 977 |
$ly = $length * sin($angle); |
| 978 |
// compare tangent with box ratio |
| 979 |
if(abs(tan($angle)) > $h2 / $w2) { |
| 980 |
// out top or bottom |
| 981 |
$target = [ |
| 982 |
$cx + $lx, |
| 983 |
$ly > 0 ? $y2 + $ly : $y1 + $ly |
| 984 |
]; |
| 985 |
} else { |
| 986 |
// out left or right |
| 987 |
$target = [ |
| 988 |
$lx > 0 ? $x2 + $lx : $x1 + $lx, |
| 989 |
$cy + $ly |
| 990 |
]; |
| 991 |
} |
| 992 |
} |
| 993 |
return [$target, $angle, $length]; |
| 994 |
} |
| 995 |
|
| 996 |
/** |
| 997 |
* Returns the tail target coordinates, angle and length for a round label, |
| 998 |
* or NULL if the tail would end inside the label. |
| 999 |
* Return value is array(array($x, $y), $angle, $length) |
| 1000 |
*/ |
| 1001 |
protected function getRoundTailTarget(&$style, $cx, $cy, $radius) |
| 1002 |
{ |
| 1003 |
$target = null; |
| 1004 |
$length = $style['tail_length']; |
| 1005 |
if($length == 'auto') { |
| 1006 |
// just use the defined target |
| 1007 |
$target = $style['target']; |
| 1008 |
|
| 1009 |
// check that target is outside the label radius |
| 1010 |
$tx = $target[0] - $cx; |
| 1011 |
$ty = $target[1] - $cy; |
| 1012 |
$rt = sqrt($tx * $tx + $ty * $ty); |
| 1013 |
if($rt <= $radius) |
| 1014 |
return null; |
| 1015 |
$angle = atan2($ty, $tx); |
| 1016 |
$length = $rt - $radius; |
| 1017 |
} else { |
| 1018 |
// target is radius + tail length away |
| 1019 |
if($length <= 0) |
| 1020 |
return null; |
| 1021 |
$len = $radius + $length; |
| 1022 |
$angle = $style['tail_direction'] * M_PI / 180; |
| 1023 |
$target = [$cx + ($len * cos($angle)), $cy + ($len * sin($angle))]; |
| 1024 |
} |
| 1025 |
return [$target, $angle, $length]; |
| 1026 |
} |
| 1027 |
|
| 1028 |
/** |
| 1029 |
* Rotate and translate $x and $y, returning Point |
| 1030 |
*/ |
| 1031 |
private static function xForm($x, $y, $a, $tx, $ty) |
| 1032 |
{ |
| 1033 |
if($x == 0 && $y == 0) |
| 1034 |
return new Point($tx, $ty); |
| 1035 |
$sa = sin($a); |
| 1036 |
$ca = cos($a); |
| 1037 |
$x1 = $x * $ca - $y * $sa; |
| 1038 |
$y1 = $x * $sa + $y * $ca; |
| 1039 |
return new Point($tx + $x1, $ty + $y1); |
| 1040 |
} |
| 1041 |
|
| 1042 |
/** |
| 1043 |
* Returns the tail ending path fragment |
| 1044 |
*/ |
| 1045 |
protected function getTailEnding($x, $y, $langle, $lwidth, $dist, &$style) |
| 1046 |
{ |
| 1047 |
$a = max(5, min(80, $style['tail_end_angle'])); |
| 1048 |
$ewidth = max($lwidth, $style['tail_end_width']); |
| 1049 |
$eangle = M_PI * $a / 180; |
| 1050 |
|
| 1051 |
// first fallback is a tapering line |
| 1052 |
$fallback = new PathData('L', $x, $y); |
| 1053 |
$lw = $lwidth * 0.5; |
| 1054 |
$ew = $ewidth * 0.5; |
| 1055 |
$ll = $lw / tan($eangle); |
| 1056 |
$el = $ew / tan($eangle); |
| 1057 |
|
| 1058 |
// ends are defined pointing upwards |
| 1059 |
$langle -= M_PI * 0.5; |
| 1060 |
$type = $style['tail_end']; |
| 1061 |
|
| 1062 |
// 'point' style by default |
| 1063 |
$points = [ [-$lw, -$ll], [0, 0], [$lw, -$ll] ]; |
| 1064 |
|
| 1065 |
switch($type) |
| 1066 |
{ |
| 1067 |
default: |
| 1068 |
case 'flat' : |
| 1069 |
$points = [ [-$lw, 0], [$lw, 0] ]; |
| 1070 |
break; |
| 1071 |
case 'taper' : |
| 1072 |
return $fallback; |
| 1073 |
case 'point' : |
| 1074 |
if($dist <= $ll) |
| 1075 |
return $fallback; |
| 1076 |
break; |
| 1077 |
|
| 1078 |
case 'filled' : |
| 1079 |
if($dist <= $el) |
| 1080 |
return $fallback; |
| 1081 |
if($ew > $lw) { |
| 1082 |
$points = [ |
| 1083 |
[-$lw, -$el], [-$ew, -$el], [0, 0], [$ew, -$el], [$lw, -$el] |
| 1084 |
]; |
| 1085 |
} |
| 1086 |
break; |
| 1087 |
case 'arrow' : |
| 1088 |
$tip_w = $lwidth * sin($eangle); |
| 1089 |
$w1 = $ew - $tip_w; |
| 1090 |
$l2 = $el + $lwidth * cos($eangle); |
| 1091 |
$l1 = $l2 - ($ew - $tip_w - $lw) / tan($eangle); |
| 1092 |
if($dist < $l2) |
| 1093 |
return $fallback; |
| 1094 |
if($w1 > $lw) { |
| 1095 |
$points = [ |
| 1096 |
[-$lw, -$l1], [-$w1, -$l2], [-$ew, -$el], |
| 1097 |
[0, 0], |
| 1098 |
[$ew, -$el], [$w1, -$l2], [$lw, -$l1] |
| 1099 |
]; |
| 1100 |
break; |
| 1101 |
} |
| 1102 |
// fall through to diamond shape if not wide enough |
| 1103 |
|
| 1104 |
case 'diamond' : |
| 1105 |
$blen = 2 * $el - $ll; |
| 1106 |
if($dist <= $blen) |
| 1107 |
return $fallback; |
| 1108 |
if($ew > $lw) { |
| 1109 |
$points = [ |
| 1110 |
[-$lw, -$blen], [-$ew, -$el], [0,0], [$ew, -$el], [$lw, -$blen] |
| 1111 |
]; |
| 1112 |
} |
| 1113 |
break; |
| 1114 |
case 'tee' : |
| 1115 |
if($dist <= $lwidth) |
| 1116 |
return $fallback; |
| 1117 |
$points = [ |
| 1118 |
[-$lw, -$lwidth], [-$ew, -$lwidth], [-$ew, 0], |
| 1119 |
[$ew, 0], [$ew, -$lwidth], [$lw, -$lwidth] |
| 1120 |
]; |
| 1121 |
break; |
| 1122 |
case 'round' : |
| 1123 |
if($dist < $lw) |
| 1124 |
return $fallback; |
| 1125 |
$cradius = min($ew, max($lw, $dist / 2)); |
| 1126 |
$rlen = sqrt(($cradius * $cradius) - ($lw * $lw)); |
| 1127 |
$rdist = $cradius + $rlen; |
| 1128 |
$p1 = $this->xForm(-$lw, -$rdist, $langle, $x, $y); |
| 1129 |
$p2 = $this->xForm($lw, -$rdist, $langle, $x, $y); |
| 1130 |
return new PathData('L', $p1, 'A', $cradius, $cradius, 0, 1, 0, $p2); |
| 1131 |
} |
| 1132 |
|
| 1133 |
$path = new PathData; |
| 1134 |
foreach($points as $pair) { |
| 1135 |
$pt = $this->xForm($pair[0], $pair[1], $langle, $x, $y); |
| 1136 |
$path->add('L', $pt); |
| 1137 |
} |
| 1138 |
return $path; |
| 1139 |
} |
| 1140 |
|
| 1141 |
/** |
| 1142 |
* Returns the point where a line crosses an arc |
| 1143 |
*/ |
| 1144 |
private function lineCrossArc($x, $y, $angle, $cx, $cy, $radius, $corner) |
| 1145 |
{ |
| 1146 |
$h = $cx; |
| 1147 |
$k = $cy; |
| 1148 |
$r = $radius; |
| 1149 |
|
| 1150 |
// 90-degree angles are simpler |
| 1151 |
$cos = abs(cos($angle)); |
| 1152 |
$sin = abs(sin($angle)); |
| 1153 |
if($cos == 1 || $sin == 1) { |
| 1154 |
if($cos == 1) { |
| 1155 |
$rt = sqrt(-($y * $y) + (2 * $y * $k) - ($k * $k) + ($r * $r)); |
| 1156 |
$y1 = $y2 = $y; |
| 1157 |
$x1 = $h - $rt; |
| 1158 |
$x2 = $h + $rt; |
| 1159 |
} else { |
| 1160 |
$rt = sqrt(-($x * $x) + (2 * $x * $h) - ($h * $h) + ($r * $r)); |
| 1161 |
$x1 = $x2 = $x; |
| 1162 |
$y1 = $k - $rt; |
| 1163 |
$y2 = $k + $rt; |
| 1164 |
} |
| 1165 |
} else { |
| 1166 |
// y = mx + c |
| 1167 |
$m = tan($angle); |
| 1168 |
$c = $y - ($x * $m); |
| 1169 |
|
| 1170 |
// using quadratic formula |
| 1171 |
$disc = -($c * $c) - (2 * $c * $h * $m) + (2 * $c * $k) |
| 1172 |
- ($h * $h * $m * $m) + (2 * $h * $k * $m) - ($k * $k) |
| 1173 |
+ ($m * $m * $r * $r) + ($r * $r); |
| 1174 |
$rt = sqrt($disc); |
| 1175 |
$b = (-$c * $m) + $h + ($k * $m); |
| 1176 |
$d = ($m * $m) + 1; |
| 1177 |
|
| 1178 |
$x1 = (-$rt + $b) / $d; |
| 1179 |
$x2 = ($rt + $b) / $d; |
| 1180 |
|
| 1181 |
// y = mx + c again, using original x and y |
| 1182 |
$y1 = $m * $x1 + $c; |
| 1183 |
$y2 = $m * $x2 + $c; |
| 1184 |
} |
| 1185 |
|
| 1186 |
$use_first = false; |
| 1187 |
switch($corner) { |
| 1188 |
case 'tr' : |
| 1189 |
if($x1 > $cx && $y1 < $cy) |
| 1190 |
$use_first = true; |
| 1191 |
break; |
| 1192 |
case 'tl' : |
| 1193 |
if($x1 < $cx && $y1 < $cy) |
| 1194 |
$use_first = true; |
| 1195 |
break; |
| 1196 |
case 'br' : |
| 1197 |
if($x1 > $cx && $y1 > $cy) |
| 1198 |
$use_first = true; |
| 1199 |
break; |
| 1200 |
case 'bl' : |
| 1201 |
if($x1 < $cx && $y1 > $cy) |
| 1202 |
$use_first = true; |
| 1203 |
} |
| 1204 |
if($use_first) |
| 1205 |
return new Point($x1, $y1); |
| 1206 |
return new Point($x2, $y2); |
| 1207 |
} |
| 1208 |
|
| 1209 |
/** |
| 1210 |
* Filled line label |
| 1211 |
*/ |
| 1212 |
protected function lineLabel2($x, $y, $w, $h, &$style, &$surround) |
| 1213 |
{ |
| 1214 |
if($style['round']) { |
| 1215 |
list($cx, $cy, $bbradius) = $this->calcRoundLabel($x, $y, $w, $h); |
| 1216 |
list($target, $angle, $len) = $this->getRoundTailTarget($style, $cx, $cy, |
| 1217 |
$bbradius); |
| 1218 |
} else { |
| 1219 |
list($target, $angle, $len) = $this->getBoxTailTarget($style, $x, $y, $x + $w, |
| 1220 |
$y + $h); |
| 1221 |
} |
| 1222 |
if($target === null) |
| 1223 |
return null; |
| 1224 |
|
| 1225 |
if($style['round']) { |
| 1226 |
$t_width = max(1, min($style['tail_width'], $bbradius)); |
| 1227 |
$l_angle = asin($t_width * 0.5 / $bbradius); |
| 1228 |
$p1 = new Point($cx + $bbradius * cos($angle - $l_angle), |
| 1229 |
$cy + $bbradius * sin($angle - $l_angle)); |
| 1230 |
$p2 = new Point($cx + $bbradius * cos($angle + $l_angle), |
| 1231 |
$cy + $bbradius * sin($angle + $l_angle)); |
| 1232 |
} else { |
| 1233 |
|
| 1234 |
$h2 = $h * 0.5; $w2 = $w * 0.5; |
| 1235 |
$cx = $x + $w2; $cy = $y + $h2; |
| 1236 |
$t_width = max(1, min((float)$style['tail_width'], $w - 1, $h - 1)); |
| 1237 |
$sin = sin($angle); |
| 1238 |
$cos = cos($angle); |
| 1239 |
$xo = $yo = 0; |
| 1240 |
if(abs($sin) == 1) { |
| 1241 |
$py = $cy + $h2 * $sin; |
| 1242 |
$px = $cx; |
| 1243 |
$xo = $t_width * 0.5; |
| 1244 |
} elseif(abs($cos) == 1) { |
| 1245 |
$px = $cx + $w2 * $cos; |
| 1246 |
$py = $cy; |
| 1247 |
$yo = $t_width * 0.5; |
| 1248 |
} else { |
| 1249 |
$h1 = abs($w2 * tan($angle)); |
| 1250 |
if($h1 >= $h2) { |
| 1251 |
$h1 = ($sin < 0 ? -$h2 : $h2); |
| 1252 |
$w1 = $h1 * tan(M_PI * 0.5 - $angle); |
| 1253 |
} else { |
| 1254 |
$w1 = ($cos < 0 ? -$w2 : $w2); |
| 1255 |
$h1 = $w1 / tan(M_PI * 0.5 - $angle); |
| 1256 |
} |
| 1257 |
$px = $cx + $w1; |
| 1258 |
$py = $cy + $h1; |
| 1259 |
$xo = $t_width * 0.5 * $sin; |
| 1260 |
$yo = $t_width * -0.5 * $cos; |
| 1261 |
} |
| 1262 |
|
| 1263 |
$p1 = new Point($px + $xo, $py + $yo); |
| 1264 |
$p2 = new Point($px - $xo, $py - $yo); |
| 1265 |
$l1 = $px - $target[0]; |
| 1266 |
$l2 = $py - $target[1]; |
| 1267 |
$len = sqrt($l1 * $l1 + $l2 * $l2); |
| 1268 |
} |
| 1269 |
|
| 1270 |
$surround['fill'] = new Colour($this->graph, $style['fill']); |
| 1271 |
$path = new PathData('M', $p1, 'L', $p2); |
| 1272 |
$path->add($this->getTailEnding($target[0], $target[1], $angle, $t_width, |
| 1273 |
$len, $style)); |
| 1274 |
$path->add('z'); |
| 1275 |
$surround['d'] = $path; |
| 1276 |
return 'path'; |
| 1277 |
} |
| 1278 |
|
| 1279 |
/** |
| 1280 |
* Line and box label style |
| 1281 |
*/ |
| 1282 |
protected function boxLineLabel($x, $y, $w, $h, &$style, &$surround) |
| 1283 |
{ |
| 1284 |
$x1 = $x; $y1 = $y; |
| 1285 |
$x2 = $x + $w; $y2 = $y + $h; |
| 1286 |
list($target, $angle, $len) = $this->getBoxTailTarget($style, $x1, $y1, |
| 1287 |
$x2, $y2); |
| 1288 |
if($target === null) |
| 1289 |
return $this->boxLabel($x, $y, $w, $h, $style, $surround); |
| 1290 |
|
| 1291 |
$round = min((float)$style['round'], $h / 3, $w / 3); |
| 1292 |
$t_width = max(1, min((float)$style['tail_width'], $w - 1, $h - 1)); |
| 1293 |
$cx = ($x1 + $x2) / 2; |
| 1294 |
$cy = ($y1 + $y2) / 2; |
| 1295 |
|
| 1296 |
while($angle < 0) |
| 1297 |
$angle += M_PI * 2.0; |
| 1298 |
|
| 1299 |
// centre points of corner arcs |
| 1300 |
$x1c = $x1 + $round; |
| 1301 |
$x2c = $x2 - $round; |
| 1302 |
$y1c = $y1 + $round; |
| 1303 |
$y2c = $y2 - $round; |
| 1304 |
|
| 1305 |
// box corners |
| 1306 |
if($round) { |
| 1307 |
$arc = new PathData('a', $round, $round, 0, 0, 0); |
| 1308 |
$c_tl = new PathData('L', $x1c, $y1); |
| 1309 |
$c_tl->add($arc); |
| 1310 |
$c_tl->add(-$round, $round); |
| 1311 |
$c_tr = new PathData('L', $x2, $y1c); |
| 1312 |
$c_tr->add($arc); |
| 1313 |
$c_tr->add(-$round, -$round); |
| 1314 |
$c_bl = new PathData('L', $x1, $y2c); |
| 1315 |
$c_bl->add($arc); |
| 1316 |
$c_bl->add($round, $round); |
| 1317 |
$c_br = new PathData('L', $x2c, $y2); |
| 1318 |
$c_br->add($arc); |
| 1319 |
$c_br->add($round, -$round); |
| 1320 |
// this gets repeated a lot |
| 1321 |
$arc = new PathData('A', $round, $round, 0, 0, 0); |
| 1322 |
} else { |
| 1323 |
$c_tl = new PathData('L', $x1, $y1); |
| 1324 |
$c_tr = new PathData('L', $x2, $y1); |
| 1325 |
$c_bl = new PathData('L', $x1, $y2); |
| 1326 |
$c_br = new PathData('L', $x2, $y2); |
| 1327 |
} |
| 1328 |
$points = []; |
| 1329 |
$rangle = M_PI * 0.5 - $angle; |
| 1330 |
if(abs(tan($angle)) > $h / $w) { |
| 1331 |
// top or bottom |
| 1332 |
// $hoff = horizontal offset from centre of edge |
| 1333 |
// $wa = width at angle |
| 1334 |
$hoff = $h * 0.5 * tan($rangle); |
| 1335 |
$wa = $t_width * 0.5 / cos($rangle); |
| 1336 |
if($angle > M_PI) { |
| 1337 |
// top |
| 1338 |
$p1 = new Point($cx - $hoff + $wa, $y1); |
| 1339 |
if($p1->x < $x1) { |
| 1340 |
$p1->y = $y1 + ($x1 - $p1->x) * tan($angle); |
| 1341 |
$p1->x = $x1; |
| 1342 |
} |
| 1343 |
$p2 = new Point($cx - $hoff - $wa, $y1); |
| 1344 |
if($p2->x > $x2) { |
| 1345 |
$p2->y = $y1 - ($p2->x - $x2) * tan($angle); |
| 1346 |
$p2->x = $x2; |
| 1347 |
} |
| 1348 |
$start = new PathData('M', $p1); |
| 1349 |
$end = new PathData('L', $p2); |
| 1350 |
// if the line meets the side past the corner radius, there is no corner |
| 1351 |
if($p1->y > $y1c) |
| 1352 |
$c_tl->clear(); |
| 1353 |
if($p2->y > $y1c) |
| 1354 |
$c_tr->clear(); |
| 1355 |
if($round) { |
| 1356 |
if(!$c_tl->isEmpty() && $p1->x < $x1c) { |
| 1357 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x1c, $y1c, $round, 'tl'); |
| 1358 |
$start = new PathData('M'); |
| 1359 |
$start->add($cross); |
| 1360 |
$c_tl = new PathData($arc); |
| 1361 |
$c_tl->add($x1, $y1c); |
| 1362 |
if($p2->x < $x1c) { |
| 1363 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x1c, $y1c, $round, 'tl'); |
| 1364 |
$end = new PathData('L', $x1c, $y1); |
| 1365 |
$end->add($arc); |
| 1366 |
$end->add($cross); |
| 1367 |
} |
| 1368 |
} |
| 1369 |
if(!$c_tr->isEmpty() && $x2c < $p2->x) { |
| 1370 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x2c, $y1c, $round, 'tr'); |
| 1371 |
$end = new PathData($arc); |
| 1372 |
$end->add($cross); |
| 1373 |
$c_tr = new PathData('L', $x2, $y1c); |
| 1374 |
if($x2c < $p1->x) { |
| 1375 |
$cross = $this->lineCrossArc($p1->x, $p2->y, $angle, $x2c, $y1c, $round, 'tr'); |
| 1376 |
$start = new PathData('M'); |
| 1377 |
$start->add($cross); |
| 1378 |
$start->add($arc); |
| 1379 |
$start->add($x2c, $y1); |
| 1380 |
} |
| 1381 |
} |
| 1382 |
} |
| 1383 |
$points = [$start, $c_tl, $c_bl, $c_br, $c_tr, $end]; |
| 1384 |
$distance = $y1 - $target[1]; |
| 1385 |
} else { |
| 1386 |
// bottom |
| 1387 |
$p1 = new Point($cx + $hoff + $wa, $y2); |
| 1388 |
if($p1->x > $x2) { |
| 1389 |
$p1->y = $y2 - ($p1->x - $x2) * tan($angle); |
| 1390 |
$p1->x = $x2; |
| 1391 |
} |
| 1392 |
$p2 = new Point($cx + $hoff - $wa, $y2); |
| 1393 |
if($p2->x < $x1) { |
| 1394 |
$p2->y = $y2 + ($x1 - $p2->x) * tan($angle); |
| 1395 |
$p2->x = $x1; |
| 1396 |
} |
| 1397 |
$start = new PathData('M', $p1); |
| 1398 |
$end = new PathData('L', $p2); |
| 1399 |
if($p1->y < $y2c) |
| 1400 |
$c_br->clear(); |
| 1401 |
if($p2->y < $y2c) |
| 1402 |
$c_bl->clear(); |
| 1403 |
if($round) { |
| 1404 |
if(!$c_bl->isEmpty() && $p2->x < $x1c) { |
| 1405 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x1c, $y2c, $round, 'bl'); |
| 1406 |
$end = new PathData($arc); |
| 1407 |
$end->add($cross); |
| 1408 |
$c_bl = new PathData('L', $x1, $y2c); |
| 1409 |
if($p1->x < $x1c) { |
| 1410 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x1c, $y2c, $round, 'bl'); |
| 1411 |
$start = new PathData('M'); |
| 1412 |
$start->add($cross); |
| 1413 |
$start->add($arc); |
| 1414 |
$start->add($x1c, $y2); |
| 1415 |
} |
| 1416 |
} |
| 1417 |
if(!$c_br->isEmpty() && $x2c < $p1->x) { |
| 1418 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x2c, $y2c, $round, 'br'); |
| 1419 |
$start = new PathData('M'); |
| 1420 |
$start->add($cross); |
| 1421 |
$c_br = new PathData($arc); |
| 1422 |
$c_br->add($x2, $y2c); |
| 1423 |
if($x2c < $p2->x) { |
| 1424 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x2c, $y2c, $round, 'br'); |
| 1425 |
$end = new PathData('L', $x2c, $y2); |
| 1426 |
$end->add($arc); |
| 1427 |
$end->add($cross); |
| 1428 |
} |
| 1429 |
} |
| 1430 |
} |
| 1431 |
$points = [$start, $c_br, $c_tr, $c_tl, $c_bl, $end]; |
| 1432 |
$distance = $target[1] - $y2; |
| 1433 |
} |
| 1434 |
} else { |
| 1435 |
// either side |
| 1436 |
// $voff = vertical offset from centre of side |
| 1437 |
// $wa = width at angle |
| 1438 |
$voff = $w * 0.5 * tan($angle); |
| 1439 |
$wa = $t_width * 0.5 / cos($angle); |
| 1440 |
if($angle < M_PI * 0.5 || $angle > M_PI * 1.5) { |
| 1441 |
// right |
| 1442 |
$p1 = new Point($x2, $cy + $voff - $wa); |
| 1443 |
if($p1->y < $y1) { |
| 1444 |
$p1->x = $x2 + ($y1 - $p1->y) * tan($rangle); |
| 1445 |
$p1->y = $y1; |
| 1446 |
} |
| 1447 |
$p2 = new Point($x2, $cy + $voff + $wa); |
| 1448 |
if($p2->y > $y2) { |
| 1449 |
$p2->x = $x2 - ($p2->y - $y2) * tan($rangle); |
| 1450 |
$p2->y = $y2; |
| 1451 |
} |
| 1452 |
$start = new PathData('M', $p1); |
| 1453 |
$end = new PathData('L', $p2); |
| 1454 |
if($p1->x < $x2c) |
| 1455 |
$c_tr->clear(); |
| 1456 |
if($p2->x < $x2c) |
| 1457 |
$c_br->clear(); |
| 1458 |
if($round) { |
| 1459 |
if(!$c_br->isEmpty() && $y2c < $p2->y) { |
| 1460 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x2c, $y2c, $round, 'br'); |
| 1461 |
$end = new PathData($arc); |
| 1462 |
$end->add($cross); |
| 1463 |
$c_br = new PathData('L', $x2c, $y2); |
| 1464 |
if($y2c < $p1->y) { |
| 1465 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x2c, $y2c, $round, 'br'); |
| 1466 |
$start = new PathData('M'); |
| 1467 |
$start->add($cross); |
| 1468 |
$start->add($arc); |
| 1469 |
$start->add($x2, $y2c); |
| 1470 |
} |
| 1471 |
} |
| 1472 |
if(!$c_tr->isEmpty() && $p1->y < $y1c) { |
| 1473 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x2c, $y1c, $round, 'tr'); |
| 1474 |
$start = new PathData('M'); |
| 1475 |
$start->add($cross); |
| 1476 |
$c_tr = new PathData($arc); |
| 1477 |
$c_tr->add($x2c, $y1); |
| 1478 |
if($p2->y < $y1c) { |
| 1479 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x2c, $y1c, $round, 'tr'); |
| 1480 |
$end = new PathData('L', $x2, $y1c); |
| 1481 |
$end->add($arc); |
| 1482 |
$end->add($cross); |
| 1483 |
} |
| 1484 |
} |
| 1485 |
} |
| 1486 |
$points = [$start, $c_tr, $c_tl, $c_bl, $c_br, $end]; |
| 1487 |
$distance = $target[0] - $x2; |
| 1488 |
} else { |
| 1489 |
// left |
| 1490 |
$p1 = new Point($x1, $cy - $voff - $wa); |
| 1491 |
if($y2 < $p1->y) { |
| 1492 |
$p1->x = $x1 + ($y2 - $p1->y) * tan($rangle); |
| 1493 |
$p1->y = $y2; |
| 1494 |
} |
| 1495 |
$p2 = new Point($x1, $cy - $voff + $wa); |
| 1496 |
if($p2->y < $y1) { |
| 1497 |
$p2->x = $x1 - ($p2->y - $y1) * tan($rangle); |
| 1498 |
$p2->y = $y1; |
| 1499 |
} |
| 1500 |
$start = new PathData('M', $p1); |
| 1501 |
$end = new PathData('L', $p2); |
| 1502 |
if($p1->x > $x1c) |
| 1503 |
$c_bl->clear(); |
| 1504 |
if($p2->x > $x1c) |
| 1505 |
$c_tl->clear(); |
| 1506 |
if($round) { |
| 1507 |
if(!$c_bl->isEmpty() && $y2c < $p1->y) { |
| 1508 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x1c, $y2c, $round, 'bl'); |
| 1509 |
$start = new PathData('M'); |
| 1510 |
$start->add($cross); |
| 1511 |
$c_bl = new PathData($arc); |
| 1512 |
$c_bl->add($x1c, $y2); |
| 1513 |
if($y2c < $p2->y) { |
| 1514 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x1c, $y2c, $round, 'bl'); |
| 1515 |
$end = new PathData('L', $x1, $y2c); |
| 1516 |
$end->add($arc); |
| 1517 |
$end->add($cross); |
| 1518 |
} |
| 1519 |
} |
| 1520 |
if(!$c_tl->isEmpty() && $p2->y < $y1c) { |
| 1521 |
$cross = $this->lineCrossArc($p2->x, $p2->y, $angle, $x1c, $y1c, $round, 'tl'); |
| 1522 |
$end = new PathData($arc); |
| 1523 |
$end->add($cross); |
| 1524 |
$c_tl = new PathData('L', $x1c, $y1); |
| 1525 |
if($p1->y < $y1c) { |
| 1526 |
$cross = $this->lineCrossArc($p1->x, $p1->y, $angle, $x1c, $y1c, $round, 'tl'); |
| 1527 |
$start = new PathData('M'); |
| 1528 |
$start->add($cross); |
| 1529 |
$start->add($arc); |
| 1530 |
$start->add($x1, $y1c); |
| 1531 |
} |
| 1532 |
} |
| 1533 |
} |
| 1534 |
$points = [$start, $c_bl, $c_br, $c_tr, $c_tl, $end]; |
| 1535 |
$distance = $x1 - $target[0]; |
| 1536 |
} |
| 1537 |
} |
| 1538 |
$box_path = new PathData; |
| 1539 |
foreach($points as $pt) |
| 1540 |
$box_path->add($pt); |
| 1541 |
$box_path->add($this->getTailEnding($target[0], $target[1], $angle, |
| 1542 |
$t_width, $distance, $style)); |
| 1543 |
$box_path->add('z'); |
| 1544 |
|
| 1545 |
$surround['fill'] = new Colour($this->graph, $style['fill']); |
| 1546 |
$surround['d'] = $box_path; |
| 1547 |
return 'path'; |
| 1548 |
} |
| 1549 |
|
| 1550 |
/** |
| 1551 |
* Line and circle label style |
| 1552 |
*/ |
| 1553 |
protected function circleLineLabel($x, $y, $w, $h, &$style, &$surround) |
| 1554 |
{ |
| 1555 |
list($cx, $cy, $bbradius) = $this->calcRoundLabel($x, $y, $w, $h); |
| 1556 |
list($target, $angle, $len) = $this->getRoundTailTarget($style, $cx, $cy, |
| 1557 |
$bbradius); |
| 1558 |
if($target === null) |
| 1559 |
return $this->circleLabel($x, $y, $w, $h, $style, $surround); |
| 1560 |
|
| 1561 |
$t_width = max(1, min($style['tail_width'], $bbradius)); |
| 1562 |
$l_angle = asin($t_width * 0.5 / $bbradius); |
| 1563 |
$p1x = $cx + $bbradius * cos($angle - $l_angle); |
| 1564 |
$p1y = $cy + $bbradius * sin($angle - $l_angle); |
| 1565 |
$p2x = $cx + $bbradius * cos($angle + $l_angle); |
| 1566 |
$p2y = $cy + $bbradius * sin($angle + $l_angle); |
| 1567 |
|
| 1568 |
$surround['fill'] = new Colour($this->graph, $style['fill']); |
| 1569 |
$path = new PathData('M', $p1x, $p1y, 'A', $bbradius, $bbradius, 0, 1, 0, |
| 1570 |
$p2x, $p2y); |
| 1571 |
$path->add($this->getTailEnding($target[0], $target[1], $angle, $t_width, $len, $style)); |
| 1572 |
$path->add('z'); |
| 1573 |
$surround['d'] = $path; |
| 1574 |
return 'path'; |
| 1575 |
} |
| 1576 |
|
| 1577 |
/** |
| 1578 |
* Converts a rectangle to a square with same centre point |
| 1579 |
*/ |
| 1580 |
private static function makeSquare(&$x, &$y, &$w, &$h) |
| 1581 |
{ |
| 1582 |
if($w == $h) |
| 1583 |
return; |
| 1584 |
$w2 = $w / 2; |
| 1585 |
$h2 = $h / 2; |
| 1586 |
if($w > $h) { |
| 1587 |
$y -= ($w2 - $h2); |
| 1588 |
$h += ($w - $h); |
| 1589 |
return; |
| 1590 |
} |
| 1591 |
$x -= ($h2 - $w2); |
| 1592 |
$w += ($h - $w); |
| 1593 |
} |
| 1594 |
|
| 1595 |
/** |
| 1596 |
* Square label style |
| 1597 |
*/ |
| 1598 |
protected function squareLabel($x, $y, $w, $h, &$style, &$surround) |
| 1599 |
{ |
| 1600 |
$this->makeSquare($x, $y, $w, $h); |
| 1601 |
return $this->boxLabel($x, $y, $w, $h, $style, $surround); |
| 1602 |
} |
| 1603 |
|
| 1604 |
/** |
| 1605 |
* Line and square label style |
| 1606 |
*/ |
| 1607 |
protected function squareLineLabel($x, $y, $w, $h, &$style, &$surround) |
| 1608 |
{ |
| 1609 |
$this->makeSquare($x, $y, $w, $h); |
| 1610 |
return $this->boxLineLabel($x, $y, $w, $h, $style, $surround); |
| 1611 |
} |
| 1612 |
} |
| 1613 |
|
| 1614 |
|
