xref: /webtrees/app/Module/HourglassChartModule.php (revision 8af3e5c1dbbe831c0125b68edb9f9b9d290d1974) 
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2019 webtrees development team
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16declare(strict_types=1);
17
18namespace Fisharebest\Webtrees\Module;
19
20use Fisharebest\Webtrees\Auth;
21use Fisharebest\Webtrees\Contracts\UserInterface;
22use Fisharebest\Webtrees\Functions\FunctionsPrint;
23use Fisharebest\Webtrees\I18N;
24use Fisharebest\Webtrees\Individual;
25use Fisharebest\Webtrees\Menu;
26use Fisharebest\Webtrees\Tree;
27use Symfony\Component\HttpFoundation\Request;
28use Symfony\Component\HttpFoundation\Response;
29use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
30
31/**
32 * Class HourglassChartModule
33 */
34class HourglassChartModule extends AbstractModule implements ModuleChartInterface
35{
36    use ModuleChartTrait;
37
38    // Defaults
39    private const DEFAULT_GENERATIONS         = '3';
40    private const DEFAULT_MAXIMUM_GENERATIONS = '9';
41
42    // Limits
43    private const MAXIMUM_GENERATIONS = 10;
44    private const MINIMUM_GENERATIONS = 2;
45
46    /**
47     * How should this module be identified in the control panel, etc.?
48     *
49     * @return string
50     */
51    public function title(): string
52    {
53        /* I18N: Name of a module/chart */
54        return I18N::translate('Hourglass chart');
55    }
56
57    /**
58     * A sentence describing what this module does.
59     *
60     * @return string
61     */
62    public function description(): string
63    {
64        /* I18N: Description of the “HourglassChart” module */
65        return I18N::translate('An hourglass chart of an individual’s ancestors and descendants.');
66    }
67
68    /**
69     * CSS class for the URL.
70     *
71     * @return string
72     */
73    public function chartMenuClass(): string
74    {
75        return 'menu-chart-hourglass';
76    }
77
78    /**
79     * Return a menu item for this chart - for use in individual boxes.
80     *
81     * @param Individual $individual
82     *
83     * @return Menu|null
84     */
85    public function chartBoxMenu(Individual $individual): ?Menu
86    {
87        return $this->chartMenu($individual);
88    }
89
90    /**
91     * A form to request the chart parameters.
92     *
93     * @param Request       $request
94     * @param Tree          $tree
95     * @param UserInterface $user
96     *
97     * @return Response
98     */
99    public function getChartAction(Request $request, Tree $tree, UserInterface $user): Response
100    {
101        $ajax       = (bool) $request->get('ajax');
102        $xref       = $request->get('xref', '');
103        $individual = Individual::getInstance($xref, $tree);
104
105        Auth::checkIndividualAccess($individual);
106        Auth::checkComponentAccess($this, 'chart', $tree, $user);
107
108        $generations = (int) $request->get('generations', self::DEFAULT_GENERATIONS);
109
110        $generations = min($generations, self::MAXIMUM_GENERATIONS);
111        $generations = max($generations, self::MINIMUM_GENERATIONS);
112
113        $show_spouse = (bool) $request->get('show_spouse');
114
115        if ($ajax) {
116            return $this->chart($individual, $generations, $show_spouse);
117        }
118
119        $ajax_url = $this->chartUrl($individual, [
120            'ajax' => true,
121        ]);
122
123        return $this->viewResponse('modules/hourglass-chart/page', [
124            'ajax_url'            => $ajax_url,
125            'generations'         => $generations,
126            'individual'          => $individual,
127            'maximum_generations' => self::MAXIMUM_GENERATIONS,
128            'minimum_generations' => self::MINIMUM_GENERATIONS,
129            'module_name'         => $this->name(),
130            'show_spouse'         => $show_spouse,
131            'title'               => $this->chartTitle($individual),
132        ]);
133    }
134
135    /**
136     * Generate the initial generations of the chart
137     *
138     * @param Individual $individual
139     * @param int        $generations
140     * @param bool       $show_spouse
141     *
142     * @return Response
143     */
144    protected function chart(Individual $individual, int $generations, bool $show_spouse): Response
145    {
146        ob_start();
147        $this->printDescendency($individual, 1, $generations, $show_spouse, true);
148        $descendants = ob_get_clean();
149
150        ob_start();
151        $this->printPersonPedigree($individual, 1, $generations, $show_spouse);
152        $ancestors = ob_get_clean();
153
154        return new Response(view('modules/hourglass-chart/chart', [
155            'descendants' => $descendants,
156            'ancestors'   => $ancestors,
157            'bhalfheight' => (int) (app(ModuleThemeInterface::class)->parameter('chart-box-y') / 2),
158            'module_name' => $this->name(),
159        ]));
160    }
161
162    /**
163     * @param Request $request
164     * @param Tree    $tree
165     *
166     * @return Response
167     */
168    public function postAncestorsAction(Request $request, Tree $tree): Response
169    {
170        $xref       = $request->get('xref', '');
171        $individual = Individual::getInstance($xref, $tree);
172
173        Auth::checkIndividualAccess($individual);
174
175        $show_spouse = (bool) $request->get('show_spouse');
176
177        ob_start();
178        $this->printPersonPedigree($individual, 0, 1, $show_spouse);
179        $html = ob_get_clean();
180
181        return new Response($html);
182    }
183
184    /**
185     * @param Request $request
186     * @param Tree    $tree
187     *
188     * @return Response
189     */
190    public function postDescendantsAction(Request $request, Tree $tree): Response
191    {
192        $show_spouse = (bool) $request->get('show_spouse');
193        $xref       = $request->get('xref', '');
194        $individual = Individual::getInstance($xref, $tree);
195
196        if ($individual === null) {
197            throw new NotFoundHttpException();
198        }
199
200        ob_start();
201        $this->printDescendency($individual, 1, 2, $show_spouse, false);
202        $html = ob_get_clean();
203
204        return new Response($html);
205    }
206
207    /**
208     * Prints descendency of passed in person
209     *
210     * @param Individual $individual  Show descendants of this individual
211     * @param int        $generation  The current generation number
212     * @param int        $generations Show this number of generations
213     * @param bool       $show_spouse
214     * @param bool       $show_menu
215     *
216     * @return void
217     */
218    private function printDescendency(Individual $individual, int $generation, int $generations, bool $show_spouse, bool $show_menu): void
219    {
220        static $lastGenSecondFam = false;
221
222        if ($generation > $generations) {
223            return;
224        }
225        $pid         = $individual->xref();
226        $tablealign  = 'right';
227        $otablealign = 'left';
228        if (I18N::direction() === 'rtl') {
229            $tablealign  = 'left';
230            $otablealign = 'right';
231        }
232
233        //-- put a space between families on the last generation
234        if ($generation == $generations - 1) {
235            if ($lastGenSecondFam) {
236                echo '<br>';
237            }
238            $lastGenSecondFam = true;
239        }
240        echo '<table cellspacing="0" cellpadding="0" border="0" id="table_' . e($pid) . '" class="hourglassChart" style="float:' . $tablealign . '">';
241        echo '<tr>';
242        echo '<td style="text-align:' . $tablealign . '">';
243        $families = $individual->spouseFamilies();
244        $children = [];
245        if ($generation < $generations) {
246            // Put all of the children in a common array
247            foreach ($families as $family) {
248                foreach ($family->children() as $child) {
249                    $children[] = $child;
250                }
251            }
252
253            $ct = count($children);
254            if ($ct > 0) {
255                echo '<table cellspacing="0" cellpadding="0" border="0" style="position: relative; top: auto; float: ' . $tablealign . ';">';
256                for ($i = 0; $i < $ct; $i++) {
257                    $individual2 = $children[$i];
258                    $chil        = $individual2->xref();
259                    echo '<tr>';
260                    echo '<td id="td_', e($chil), '" class="', I18N::direction(), '" style="text-align:', $otablealign, '">';
261                    $this->printDescendency($individual2, $generation + 1, $generations, $show_spouse, false);
262                    echo '</td>';
263
264                    // Print the lines
265                    if ($ct > 1) {
266                        if ($i == 0) {
267                            // First child
268                            echo '<td style="vertical-align:bottom"><img alt="" role="presentation" class="line1 tvertline" id="vline_' . $chil . '" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>';
269                        } elseif ($i == $ct - 1) {
270                            // Last child
271                            echo '<td style="vertical-align:top"><img alt="" role="presentation" class="bvertline" id="vline_' . $chil . '" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>';
272                        } else {
273                            // Middle child
274                            echo '<td style="background:url(' . e('"' . asset('css/images/vline.png') . '"') . ');"><img alt="" role="presentation" src="' . e(asset('css/images/spacer.png')) . '" width="3"></td>';
275                        }
276                    }
277                    echo '</tr>';
278                }
279                echo '</table>';
280            }
281            echo '</td>';
282            echo '<td class="myCharts" width="', app(ModuleThemeInterface::class)->parameter('chart-box-x'), '">';
283        }
284
285        // Print the descendency expansion arrow
286        if ($generation === $generations) {
287            $tbwidth = app(ModuleThemeInterface::class)->parameter('chart-box-x') + 16;
288            for ($j = $generation; $j < $generations; $j++) {
289                echo "<div style='width: ", $tbwidth, "px;'><br></div></td><td style='width:", app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px'>";
290            }
291            $kcount = 0;
292            foreach ($families as $family) {
293                $kcount += $family->numberOfChildren();
294            }
295            if ($kcount == 0) {
296                echo "</td><td style='width:", app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px'>";
297            } else {
298                echo '<a href="#" title="' . I18N::translate('Children') . '" data-route="Descendants" data-xref="' .  e($pid) . '" data-spouses="' .  e($show_spouse) . '" data-tree="' .  e($individual->tree()->name()) . '">' . view('icons/arrow-left') . '</a>';
299
300                //-- move the arrow up to line up with the correct box
301                if ($show_spouse) {
302                    echo str_repeat('<br><br><br>', count($families));
303                }
304                echo "</td><td style='width:", app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px'>";
305            }
306        }
307
308        echo '<table cellspacing="0" cellpadding="0" border="0" id="table2_' . $pid . '"><tr><td> ';
309        echo FunctionsPrint::printPedigreePerson($individual);
310        echo '</td><td> <img alt="" role="presentation" class="lineh1" src="' . e(asset('css/images/hline.png')) . '" width="7" height="3">';
311
312        //----- Print the spouse
313        if ($show_spouse) {
314            foreach ($families as $family) {
315                echo "</td></tr><tr><td style='text-align:$otablealign'>";
316                echo FunctionsPrint::printPedigreePerson($family->spouse($individual));
317                echo '</td><td> </td>';
318            }
319            //-- add offset divs to make things line up better
320            if ($generation == $generations) {
321                echo "<tr><td colspan '2'><div style='height:", (app(ModuleThemeInterface::class)->parameter('chart-box-y') / 4), 'px; width:', app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px;'><br></div>";
322            }
323        }
324        echo '</td></tr></table>';
325
326        // For the root individual, print a down arrow that allows changing the root of tree
327        if ($show_menu && $generation == 1) {
328            echo '<div class="text-center" id="childarrow" style="position:absolute; width:', app(ModuleThemeInterface::class)->parameter('chart-box-x'), 'px;">';
329            echo '<a href="#" title="' . I18N::translate('Family') . '" id="spouse-child-links">' . view('icons/arrow-down') . '</a>';
330            echo '<div id="childbox">';
331            echo '<table cellspacing="0" cellpadding="0" border="0" class="person_box"><tr><td> ';
332
333            foreach ($individual->spouseFamilies() as $family) {
334                echo "<span class='name1'>" . I18N::translate('Family') . '</span>';
335                $spouse = $family->spouse($individual);
336                if ($spouse !== null) {
337                    echo '<a href="' . e(route('hourglass', [
338                            'xref'        => $spouse->xref(),
339                            'generations' => $generations,
340                            'show_spouse' => (int) $show_spouse,
341                            'ged'         => $spouse->tree()->name(),
342                        ])) . '" class="name1">' . $spouse->fullName() . '</a>';
343                }
344                foreach ($family->children() as $child) {
345                    echo '<a href="' . e(route('hourglass', [
346                            'xref'        => $child->xref(),
347                            'generations' => $generations,
348                            'show_spouse' => (int) $show_spouse,
349                            'ged'         => $child->tree()->name(),
350                        ])) . '" class="name1">' . $child->fullName() . '</a>';
351                }
352            }
353
354            //-- print the siblings
355            foreach ($individual->childFamilies() as $family) {
356                if ($family->husband() || $family->wife()) {
357                    echo "<span class='name1'>" . I18N::translate('Parents') . '</span>';
358                    $husb = $family->husband();
359                    if ($husb) {
360                        echo '<a href="' . e(route('hourglass', [
361                                'xref'        => $husb->xref(),
362                                'generations' => $generations,
363                                'show_spouse' => (int) $show_spouse,
364                                'ged'         => $husb->tree()->name(),
365                            ])) . '" class="name1">' . $husb->fullName() . '</a>';
366                    }
367                    $wife = $family->wife();
368                    if ($wife) {
369                        echo '<a href="' . e(route('hourglass', [
370                                'xref'        => $wife->xref(),
371                                'generations' => $generations,
372                                'show_spouse' => (int) $show_spouse,
373                                'ged'         => $wife->tree()->name(),
374                            ])) . '" class="name1">' . $wife->fullName() . '</a>';
375                    }
376                }
377
378                // filter out root person from children array so only siblings remain
379                $siblings       = $family->children()->filter(function (Individual $x) use ($individual): bool {
380                    return $x !== $individual;
381                });
382
383                if ($siblings->count() > 0) {
384                    echo '<span class="name1">';
385                    echo $siblings->count() > 1 ? I18N::translate('Siblings') : I18N::translate('Sibling');
386                    echo '</span>';
387                    foreach ($siblings as $child) {
388                        echo '<a href="' . e(route('hourglass', [
389                                'xref'        => $child->xref(),
390                                'generations' => $generations,
391                                'show_spouse' => (int) $show_spouse,
392                                'ged'         => $child->tree()->name(),
393                            ])) . '" class="name1">' . $child->fullName() . '</a>';
394                    }
395                }
396            }
397            echo '</td></tr></table>';
398            echo '</div>';
399            echo '</div>';
400        }
401        echo '</td></tr></table>';
402    }
403
404    /**
405     * Prints pedigree of the person passed in. Which is the descendancy
406     *
407     * @param Individual $individual  Show the pedigree of this individual
408     * @param int        $generation  Current generation number
409     * @param int        $generations Show this number of generations
410     * @param bool       $show_spouse
411     *
412     * @return void
413     */
414    private function printPersonPedigree(Individual $individual, int $generation, int $generations, bool $show_spouse): void
415    {
416        if ($generation >= $generations) {
417            return;
418        }
419
420        // handle pedigree n generations lines
421        $genoffset = $generations;
422
423        $family = $individual->primaryChildFamily();
424
425        if ($family === null) {
426            // Prints empty table columns for children w/o parents up to the max generation
427            // This allows vertical line spacing to be consistent
428            echo '<table><tr><td> ' . app(ModuleThemeInterface::class)->individualBoxEmpty() . '</td>';
429            echo '<td> ';
430            // Recursively get the father’s family
431            $this->printPersonPedigree($individual, $generation + 1, $generations, $show_spouse);
432            echo '</td></tr>';
433            echo '<tr><td> ' . app(ModuleThemeInterface::class)->individualBoxEmpty() . '</td>';
434            echo '<td> ';
435            // Recursively get the mother’s family
436            $this->printPersonPedigree($individual, $generation + 1, $generations, $show_spouse);
437            echo '</td><td> </tr></table>';
438        } else {
439            echo '<table cellspacing="0" cellpadding="0" border="0"  class="hourglassChart">';
440            echo '<tr>';
441            echo '<td style="vertical-align:bottom"><img alt="" role="presnentation" class="line3 pvline" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>';
442            echo '<td> <img alt="" role="presentation" class="lineh2" src="' . e(asset('css/images/hline.png')) . '" width="7" height="3"></td>';
443            echo '<td class="myCharts"> ';
444            //-- print the father box
445            echo FunctionsPrint::printPedigreePerson($family->husband());
446            echo '</td>';
447            if ($family->husband()) {
448                $ARID = $family->husband()->xref();
449                echo '<td id="td_' . e($ARID) . '">';
450
451                if ($generation == $generations - 1 && $family->husband()->childFamilies()) {
452                    echo '<a href="#" title="' . I18N::translate('Parents') . '" data-route="Ancestors" data-xref="' .  e($ARID) . '" data-spouses="' .  e($show_spouse) . '" data-tree="' .  e($family->husband()->tree()->name()) . '">' . view('icons/arrow-right') . '</a>';
453                }
454
455                $this->printPersonPedigree($family->husband(), $generation + 1, $generations, $show_spouse);
456                echo '</td>';
457            } else {
458                echo '<td> ';
459                if ($generation < $genoffset - 1) {
460                    echo '<table>';
461                    for ($i = $generation; $i < ((2 ** (($genoffset - 1) - $generation)) / 2) + 2; $i++) {
462                        echo app(ModuleThemeInterface::class)->individualBoxEmpty();
463                        echo '</tr>';
464                        echo app(ModuleThemeInterface::class)->individualBoxEmpty();
465                        echo '</tr>';
466                    }
467                    echo '</table>';
468                }
469            }
470            echo
471            '</tr><tr>',
472                '<td style="vertical-align:top"><img alt="" role="presentation" class="pvline" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>',
473                '<td> <img alt="" role="presentation" class="lineh3" src="' . e(asset('css/images/hline.png')) . '" width="7" height="3"></td>',
474            '<td class="myCharts"> ';
475
476            echo FunctionsPrint::printPedigreePerson($family->wife());
477            echo '</td>';
478            if ($family->wife()) {
479                $ARID = $family->wife()->xref();
480                echo '<td id="td_' . e($ARID) . '">';
481
482                if ($generation == $generations - 1 && $family->wife()->childFamilies()) {
483                    echo '<a href="#" title="' . I18N::translate('Parents') . '" data-route="Ancestors" data-xref="' .  e($ARID) . '" data-spouses="' .  e($show_spouse) . '" data-tree="' .  e($family->wife()->tree()->name()) . '">' . view('icons/arrow-right') . '</a>';
484                }
485
486                $this->printPersonPedigree($family->wife(), $generation + 1, $generations, $show_spouse);
487                echo '</td>';
488            }
489            echo '</tr></table>';
490        }
491    }
492}
493