xref: /webtrees/app/Module/HourglassChartModule.php (revision db3aeb3eb846bb233f34557aedb1559aadf9275a) 
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;
29
30/**
31 * Class HourglassChartModule
32 */
33class HourglassChartModule extends AbstractModule implements ModuleChartInterface
34{
35    use ModuleChartTrait;
36
37    // Defaults
38    private const DEFAULT_GENERATIONS         = '3';
39    private const DEFAULT_MAXIMUM_GENERATIONS = '9';
40
41    // Limits
42    private const MAXIMUM_GENERATIONS = 10;
43    private const MINIMUM_GENERATIONS = 2;
44
45    /**
46     * How should this module be labelled on tabs, menus, etc.?
47     *
48     * @return string
49     */
50    public function title(): string
51    {
52        /* I18N: Name of a module/chart */
53        return I18N::translate('Hourglass chart');
54    }
55
56    /**
57     * A sentence describing what this module does.
58     *
59     * @return string
60     */
61    public function description(): string
62    {
63        /* I18N: Description of the “HourglassChart” module */
64        return I18N::translate('An hourglass chart of an individual’s ancestors and descendants.');
65    }
66
67    /**
68     * CSS class for the URL.
69     *
70     * @return string
71     */
72    public function chartMenuClass(): string
73    {
74        return 'menu-chart-hourglass';
75    }
76
77    /**
78     * Return a menu item for this chart - for use in individual boxes.
79     *
80     * @param Individual $individual
81     *
82     * @return Menu|null
83     */
84    public function chartBoxMenu(Individual $individual): ?Menu
85    {
86        return $this->chartMenu($individual);
87    }
88
89    /**
90     * A form to request the chart parameters.
91     *
92     * @param Request       $request
93     * @param Tree          $tree
94     * @param UserInterface $user
95     *
96     * @return Response
97     */
98    public function getChartAction(Request $request, Tree $tree, UserInterface $user): Response
99    {
100        $ajax       = (bool) $request->get('ajax');
101        $xref       = $request->get('xref', '');
102        $individual = Individual::getInstance($xref, $tree);
103
104        Auth::checkIndividualAccess($individual);
105        Auth::checkComponentAccess($this, 'chart', $tree, $user);
106
107        $generations = (int) $request->get('generations', self::DEFAULT_GENERATIONS);
108
109        $generations = min($generations, self::MAXIMUM_GENERATIONS);
110        $generations = max($generations, self::MINIMUM_GENERATIONS);
111
112        $show_spouse = (bool) $request->get('show_spouse');
113
114        if ($ajax) {
115            return $this->chart($individual, $generations, $show_spouse);
116        }
117
118        $ajax_url = $this->chartUrl($individual, [
119            'ajax' => true,
120        ]);
121
122        return $this->viewResponse('modules/hourglass-chart/page', [
123            'ajax_url'            => $ajax_url,
124            'generations'         => $generations,
125            'individual'          => $individual,
126            'maximum_generations' => self::MAXIMUM_GENERATIONS,
127            'minimum_generations' => self::MINIMUM_GENERATIONS,
128            'module_name'         => $this->name(),
129            'show_spouse'         => $show_spouse,
130            'title'               => $this->chartTitle($individual),
131        ]);
132    }
133
134    /**
135     * Generate the initial generations of the chart
136     *
137     * @param Individual $individual
138     * @param int        $generations
139     * @param bool       $show_spouse
140     *
141     * @return Response
142     */
143    protected function chart(Individual $individual, int $generations, bool $show_spouse): Response
144    {
145        ob_start();
146        $this->printDescendency($individual, 1, $generations, $show_spouse, true);
147        $descendants = ob_get_clean();
148
149        ob_start();
150        $this->printPersonPedigree($individual, 1, $generations, $show_spouse);
151        $ancestors = ob_get_clean();
152
153        return new Response(view('modules/hourglass-chart/chart', [
154            'descendants' => $descendants,
155            'ancestors'   => $ancestors,
156            'bhalfheight' => (int) (app(ModuleThemeInterface::class)->parameter('chart-box-y') / 2),
157            'module_name' => $this->name(),
158        ]));
159    }
160
161    /**
162     * @param Request $request
163     * @param Tree    $tree
164     *
165     * @return Response
166     */
167    public function postAncestorsAction(Request $request, Tree $tree): Response
168    {
169        $xref       = $request->get('xref', '');
170        $individual = Individual::getInstance($xref, $tree);
171
172        Auth::checkIndividualAccess($individual);
173
174        $show_spouse = (bool) $request->get('show_spouse');
175
176        ob_start();
177        $this->printPersonPedigree($individual, 0, 1, $show_spouse);
178        $html = ob_get_clean();
179
180        return new Response($html);
181    }
182
183    /**
184     * @param Request $request
185     * @param Tree    $tree
186     *
187     * @return Response
188     */
189    public function postDescendantsAction(Request $request, Tree $tree): Response
190    {
191        $xref       = $request->get('xref', '');
192        $individual = Individual::getInstance($xref, $tree);
193
194        $show_spouse = (bool) $request->get('show_spouse');
195
196        ob_start();
197        $this->printDescendency($individual, 1, 2, $show_spouse, false);
198        $html = ob_get_clean();
199
200        return new Response($html);
201    }
202
203    /**
204     * Prints descendency of passed in person
205     *
206     * @param Individual $individual  Show descendants of this individual
207     * @param int        $generation  The current generation number
208     * @param int        $generations Show this number of generations
209     * @param bool       $show_spouse
210     * @param bool       $show_menu
211     *
212     * @return void
213     */
214    private function printDescendency(Individual $individual, int $generation, int $generations, bool $show_spouse, bool $show_menu)
215    {
216        static $lastGenSecondFam = false;
217
218        if ($generation > $generations) {
219            return;
220        }
221        $pid         = $individual->xref();
222        $tablealign  = 'right';
223        $otablealign = 'left';
224        if (I18N::direction() === 'rtl') {
225            $tablealign  = 'left';
226            $otablealign = 'right';
227        }
228
229        //-- put a space between families on the last generation
230        if ($generation == $generations - 1) {
231            if ($lastGenSecondFam) {
232                echo '<br>';
233            }
234            $lastGenSecondFam = true;
235        }
236        echo '<table cellspacing="0" cellpadding="0" border="0" id="table_' . e($pid) . '" class="hourglassChart" style="float:' . $tablealign . '">';
237        echo '<tr>';
238        echo '<td style="text-align:' . $tablealign . '">';
239        $families = $individual->spouseFamilies();
240        $children = [];
241        if ($generation < $generations) {
242            // Put all of the children in a common array
243            foreach ($families as $family) {
244                foreach ($family->children() as $child) {
245                    $children[] = $child;
246                }
247            }
248
249            $ct = count($children);
250            if ($ct > 0) {
251                echo '<table cellspacing="0" cellpadding="0" border="0" style="position: relative; top: auto; float: ' . $tablealign . ';">';
252                for ($i = 0; $i < $ct; $i++) {
253                    $individual2 = $children[$i];
254                    $chil        = $individual2->xref();
255                    echo '<tr>';
256                    echo '<td id="td_', e($chil), '" class="', I18N::direction(), '" style="text-align:', $otablealign, '">';
257                    $this->printDescendency($individual2, $generation + 1, $generations, $show_spouse, false);
258                    echo '</td>';
259
260                    // Print the lines
261                    if ($ct > 1) {
262                        if ($i == 0) {
263                            // First child
264                            echo '<td style="vertical-align:bottom"><img alt="" role="presentation" class="line1 tvertline" id="vline_' . $chil . '" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>';
265                        } elseif ($i == $ct - 1) {
266                            // Last child
267                            echo '<td style="vertical-align:top"><img alt="" role="presentation" class="bvertline" id="vline_' . $chil . '" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>';
268                        } else {
269                            // Middle child
270                            echo '<td style="background:url(' . e('"' . asset('css/images/vline.png') . '"') . ');"><img alt="" role="presentation" src="' . e(asset('css/images/spacer.png')) . '" width="3"></td>';
271                        }
272                    }
273                    echo '</tr>';
274                }
275                echo '</table>';
276            }
277            echo '</td>';
278            echo '<td class="myCharts" width="', app(ModuleThemeInterface::class)->parameter('chart-box-x'), '">';
279        }
280
281        // Print the descendency expansion arrow
282        if ($generation == $generations) {
283            $tbwidth = app(ModuleThemeInterface::class)->parameter('chart-box-x') + 16;
284            for ($j = $generation; $j < $generations; $j++) {
285                echo "<div style='width: ", $tbwidth, "px;'><br></div></td><td style='width:", app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px'>";
286            }
287            $kcount = 0;
288            foreach ($families as $family) {
289                $kcount += $family->numberOfChildren();
290            }
291            if ($kcount == 0) {
292                echo "</td><td style='width:", app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px'>";
293            } else {
294                echo '<a href="#" title="' . I18N::translate('Children') . '" data-route="Descendants" data-xref="' .  e($pid) . '" data-spouses="' .  e($show_spouse) . '" data-tree="' .  e($individual->tree()->name()) . '">' . view('icons/arrow-left') . '</a>';
295
296                //-- move the arrow up to line up with the correct box
297                if ($show_spouse) {
298                    echo str_repeat('<br><br><br>', count($families));
299                }
300                echo "</td><td style='width:", app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px'>";
301            }
302        }
303
304        echo '<table cellspacing="0" cellpadding="0" border="0" id="table2_' . $pid . '"><tr><td> ';
305        echo FunctionsPrint::printPedigreePerson($individual);
306        echo '</td><td> <img alt="" role="presentation" class="lineh1" src="' . e(asset('css/images/hline.png')) . '" width="7" height="3">';
307
308        //----- Print the spouse
309        if ($show_spouse) {
310            foreach ($families as $family) {
311                echo "</td></tr><tr><td style='text-align:$otablealign'>";
312                echo FunctionsPrint::printPedigreePerson($family->spouse($individual));
313                echo '</td><td> </td>';
314            }
315            //-- add offset divs to make things line up better
316            if ($generation == $generations) {
317                echo "<tr><td colspan '2'><div style='height:", (app(ModuleThemeInterface::class)->parameter('chart-box-y') / 4), 'px; width:', app(ModuleThemeInterface::class)->parameter('chart-box-x'), "px;'><br></div>";
318            }
319        }
320        echo '</td></tr></table>';
321
322        // For the root individual, print a down arrow that allows changing the root of tree
323        if ($show_menu && $generation == 1) {
324            echo '<div class="text-center" id="childarrow" style="position:absolute; width:', app(ModuleThemeInterface::class)->parameter('chart-box-x'), 'px;">';
325            echo '<a href="#" title="' . I18N::translate('Family') . '" id="spouse-child-links">' . view('icons/arrow-down') . '</a>';
326            echo '<div id="childbox">';
327            echo '<table cellspacing="0" cellpadding="0" border="0" class="person_box"><tr><td> ';
328
329            foreach ($individual->spouseFamilies() as $family) {
330                echo "<span class='name1'>" . I18N::translate('Family') . '</span>';
331                $spouse = $family->spouse($individual);
332                if ($spouse !== null) {
333                    echo '<a href="' . e(route('hourglass', [
334                            'xref'        => $spouse->xref(),
335                            'generations' => $generations,
336                            'show_spouse' => (int) $show_spouse,
337                            'ged'         => $spouse->tree()->name(),
338                        ])) . '" class="name1">' . $spouse->fullName() . '</a>';
339                }
340                foreach ($family->children() as $child) {
341                    echo '<a href="' . e(route('hourglass', [
342                            'xref'        => $child->xref(),
343                            'generations' => $generations,
344                            'show_spouse' => (int) $show_spouse,
345                            'ged'         => $child->tree()->name(),
346                        ])) . '" class="name1">' . $child->fullName() . '</a>';
347                }
348            }
349
350            //-- print the siblings
351            foreach ($individual->childFamilies() as $family) {
352                if ($family->husband() || $family->wife()) {
353                    echo "<span class='name1'>" . I18N::translate('Parents') . '</span>';
354                    $husb = $family->husband();
355                    if ($husb) {
356                        echo '<a href="' . e(route('hourglass', [
357                                'xref'        => $husb->xref(),
358                                'generations' => $generations,
359                                'show_spouse' => (int) $show_spouse,
360                                'ged'         => $husb->tree()->name(),
361                            ])) . '" class="name1">' . $husb->fullName() . '</a>';
362                    }
363                    $wife = $family->wife();
364                    if ($wife) {
365                        echo '<a href="' . e(route('hourglass', [
366                                'xref'        => $wife->xref(),
367                                'generations' => $generations,
368                                'show_spouse' => (int) $show_spouse,
369                                'ged'         => $wife->tree()->name(),
370                            ])) . '" class="name1">' . $wife->fullName() . '</a>';
371                    }
372                }
373
374                // filter out root person from children array so only siblings remain
375                $siblings       = $family->children()->filter(function (Individual $x) use ($individual): bool {
376                    return $x !== $individual;
377                });
378
379                if ($siblings->count() > 0) {
380                    echo '<span class="name1">';
381                    echo $siblings->count() > 1 ? I18N::translate('Siblings') : I18N::translate('Sibling');
382                    echo '</span>';
383                    foreach ($siblings as $child) {
384                        echo '<a href="' . e(route('hourglass', [
385                                'xref'        => $child->xref(),
386                                'generations' => $generations,
387                                'show_spouse' => (int) $show_spouse,
388                                'ged'         => $child->tree()->name(),
389                            ])) . '" class="name1">' . $child->fullName() . '</a>';
390                    }
391                }
392            }
393            echo '</td></tr></table>';
394            echo '</div>';
395            echo '</div>';
396        }
397        echo '</td></tr></table>';
398    }
399
400    /**
401     * Prints pedigree of the person passed in. Which is the descendancy
402     *
403     * @param Individual $individual  Show the pedigree of this individual
404     * @param int        $generation  Current generation number
405     * @param int        $generations Show this number of generations
406     * @param bool       $show_spouse
407     *
408     * @return void
409     */
410    private function printPersonPedigree(Individual $individual, int $generation, int $generations, bool $show_spouse)
411    {
412        if ($generation >= $generations) {
413            return;
414        }
415
416        // handle pedigree n generations lines
417        $genoffset = $generations;
418
419        $family = $individual->primaryChildFamily();
420
421        if ($family === null) {
422            // Prints empty table columns for children w/o parents up to the max generation
423            // This allows vertical line spacing to be consistent
424            echo '<table><tr><td> ' . app(ModuleThemeInterface::class)->individualBoxEmpty() . '</td>';
425            echo '<td> ';
426            // Recursively get the father’s family
427            $this->printPersonPedigree($individual, $generation + 1, $generations, $show_spouse);
428            echo '</td></tr>';
429            echo '<tr><td> ' . app(ModuleThemeInterface::class)->individualBoxEmpty() . '</td>';
430            echo '<td> ';
431            // Recursively get the mother’s family
432            $this->printPersonPedigree($individual, $generation + 1, $generations, $show_spouse);
433            echo '</td><td> </tr></table>';
434        } else {
435            echo '<table cellspacing="0" cellpadding="0" border="0"  class="hourglassChart">';
436            echo '<tr>';
437            echo '<td style="vertical-align:bottom"><img alt="" role="presnentation" class="line3 pvline" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>';
438            echo '<td> <img alt="" role="presentation" class="lineh2" src="' . e(asset('css/images/hline.png')) . '" width="7" height="3"></td>';
439            echo '<td class="myCharts"> ';
440            //-- print the father box
441            echo FunctionsPrint::printPedigreePerson($family->husband());
442            echo '</td>';
443            if ($family->husband()) {
444                $ARID = $family->husband()->xref();
445                echo '<td id="td_' . e($ARID) . '">';
446
447                if ($generation == $generations - 1 && $family->husband()->childFamilies()) {
448                    echo '<a href="#" title="' . I18N::translate('Parents') . '" data-route="Ancestors" data-xref="' .  e($ARID) . '" data-spouses="' .  e($show_spouse) . '" data-tree="' .  e($family->husband()->tree()->name()) . '">' . view('icons/arrow-right') . '</a>';
449                }
450
451                $this->printPersonPedigree($family->husband(), $generation + 1, $generations, $show_spouse);
452                echo '</td>';
453            } else {
454                echo '<td> ';
455                if ($generation < $genoffset - 1) {
456                    echo '<table>';
457                    for ($i = $generation; $i < ((2 ** (($genoffset - 1) - $generation)) / 2) + 2; $i++) {
458                        echo app(ModuleThemeInterface::class)->individualBoxEmpty();
459                        echo '</tr>';
460                        echo app(ModuleThemeInterface::class)->individualBoxEmpty();
461                        echo '</tr>';
462                    }
463                    echo '</table>';
464                }
465            }
466            echo
467            '</tr><tr>',
468                '<td style="vertical-align:top"><img alt="" role="presentation" class="pvline" src="' . e(asset('css/images/vline.png')) . '" width="3"></td>',
469                '<td> <img alt="" role="presentation" class="lineh3" src="' . e(asset('css/images/hline.png')) . '" width="7" height="3"></td>',
470            '<td class="myCharts"> ';
471
472            echo FunctionsPrint::printPedigreePerson($family->wife());
473            echo '</td>';
474            if ($family->wife()) {
475                $ARID = $family->wife()->xref();
476                echo '<td id="td_' . e($ARID) . '">';
477
478                if ($generation == $generations - 1 && $family->wife()->childFamilies()) {
479                    echo '<a href="#" title="' . I18N::translate('Parents') . '" data-route="Ancestors" data-xref="' .  e($ARID) . '" data-spouses="' .  e($show_spouse) . '" data-tree="' .  e($family->wife()->tree()->name()) . '">' . view('icons/arrow-right') . '</a>';
480                }
481
482                $this->printPersonPedigree($family->wife(), $generation + 1, $generations, $show_spouse);
483                echo '</td>';
484            }
485            echo '</tr></table>';
486        }
487    }
488}
489