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Filename : gis_data_editor_form.twig
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<form id="gis_data_editor_form" action="{{ url('/gis-data-editor') }}" method="post">
    <input type="hidden" id="themeImagePath" value="{{ theme_image_path }}">
    <div id="gis_data_editor">
        <h3>{{ 'Value for the column "%s"'|trans|format(field) }}</h3>

        <input type="hidden" name="field" value="{{ field }}">
        {# The input field to which the final result should be added and corresponding null checkbox #}
        {% if input_name is not null %}
            <input type="hidden" name="input_name" value="{{ input_name }}">
        {% endif %}
        {{ get_hidden_inputs() }}

        {# Visualization section #}
        <div id="placeholder"{{ srid != 0 ? ' class="hide"' }}>
            {{ visualization|raw }}
        </div>

        <div id="openlayersmap" style="width: {{width}}px; height: {{height}}px;"{{ srid == 0 ? ' class="hide"' }}></div>

        <div class="choice floatright">
            <input type="checkbox" id="choice" value="useBaseLayer"{{ srid != 0 ? ' checked="checked"' }}>
            <label for="choice">{% trans "Use OpenStreetMaps as Base Layer" %}</label>
        </div>

        <script language="javascript" type="text/javascript">{{ open_layers|raw }}</script>
        {# End of visualization section #}

        {# Header section - Inclueds GIS type selector and input field for SRID #}
        <div id="gis_data_header">
            <select name="gis_data[gis_type]" class="gis_type">
                {% for gis_type in gis_types %}
                    <option value="{{ gis_type }}"{{ geom_type == gis_type ? ' selected="selected"' }}>
                        {{ gis_type }}
                    </option>
                {% endfor %}
            </select>

            <label for="srid">{% trans %}SRID:{% context %}Spatial Reference System Identifier{% endtrans %}</label>
            <input name="gis_data[srid]" type="text" value="{{ srid }}">
        </div>
        {# End of header section #}

        {# Data section #}
        <div id="gis_data">
            {% if geom_type == 'GEOMETRYCOLLECTION' %}
                <input type="hidden" name="gis_data[GEOMETRYCOLLECTION][geom_count]" value="{{ geom_count }}">
            {% endif %}

            {% for a in 0..geom_count - 1 %}
              {% if gis_data[a] is not null %}
                {% if geom_type == 'GEOMETRYCOLLECTION' %}
                    <br><br>
                    {{ 'Geometry %d:'|trans|format(a + 1) }}
                    <br>
                    {% if gis_data[a]['gis_type'] is not null %}
                        {% set type = gis_data[a]['gis_type'] %}
                    {% else %}
                        {% set type = gis_types[0] %}
                    {% endif %}
                    <select name="gis_data[{{ a }}][gis_type]" class="gis_type">
                        {% for gis_type in gis_types|slice(0, 6) %}
                            <option value="{{ gis_type }}"{{ type == gis_type ? ' selected="selected"' }}>
                                {{ gis_type }}
                            </option>
                        {% endfor %}
                    </select>
                {% else %}
                    {% set type = geom_type %}
                {% endif %}

                {% if type == 'POINT' %}
                    <br>
                    {% trans 'Point:' %}
                    <label for="x">{% trans 'X' %}</label>
                    <input name="gis_data[{{ a }}][POINT][x]" type="text" value="{{ gis_data[a]['POINT']['x'] }}">
                    <label for="y">{% trans 'Y' %}</label>
                    <input name="gis_data[{{ a }}][POINT][y]" type="text" value="{{ gis_data[a]['POINT']['y'] }}">
                {% elseif type == 'MULTIPOINT' or type == 'LINESTRING' %}
                    {% set no_of_points = gis_data[a][type]['no_of_points'] ?? 1 %}
                    {% if type == 'LINESTRING' and no_of_points < 2 %}
                        {% set no_of_points = 2 %}
                    {% endif %}
                    {% if type == 'MULTIPOINT' and no_of_points < 1 %}
                        {% set no_of_points = 1 %}
                    {% endif %}
                    {% if gis_data[a][type]['add_point'] is not null %}
                        {% set no_of_points = no_of_points + 1 %}
                    {% endif %}
                    <input type="hidden" value="{{ no_of_points }}" name="gis_data[{{ a }}][{{ type }}][no_of_points]">

                    {% for i in 0..no_of_points - 1 %}
                        <br>
                        {{ 'Point %d:'|trans|format(i + 1) }}
                        <label for="x">{% trans 'X' %}</label>
                        <input type="text" name="gis_data[{{ a }}][{{ type }}][{{ i }}][x]" value="{{ gis_data[a][type][i]['x'] }}">
                        <label for="y">{% trans 'Y' %}</label>
                        <input type="text" name="gis_data[{{ a }}][{{ type }}][{{ i }}][y]" value="{{ gis_data[a][type][i]['y'] }}">
                    {% endfor %}
                    <input type="submit" name="gis_data[{{ a }}][{{ type }}][add_point]" class="btn btn-secondary add addPoint" value="{% trans 'Add a point' %}">
                {% elseif type == 'MULTILINESTRING' or type == 'POLYGON' %}
                    {% set no_of_lines = gis_data[a][type]['no_of_lines'] ?? 1 %}
                    {% if no_of_lines < 1 %}
                        {% set no_of_lines = 1 %}
                    {% endif %}
                    {% if gis_data[a][type]['add_line'] is not null %}
                        {% set no_of_lines = no_of_lines + 1 %}
                    {% endif %}
                    <input type="hidden" value="{{ no_of_lines }}" name="gis_data[{{ a }}][{{ type }}][no_of_lines]">

                    {% for i in 0..no_of_lines - 1 %}
                        <br>
                        {% if type == 'MULTILINESTRING' %}
                            {{ 'Linestring %d:'|trans|format(i + 1) }}
                        {% elseif i == 0 %}
                            {% trans 'Outer ring:' %}
                        {% else %}
                            {{ 'Inner ring %d:'|trans|format(i) }}
                        {% endif %}

                        {% set no_of_points = gis_data[a][type][i]['no_of_points'] ?? 2 %}
                        {% if type == 'MULTILINESTRING' and no_of_points < 2 %}
                            {% set no_of_points = 2 %}
                        {% endif %}
                        {% if type == 'POLYGON' and no_of_points < 4 %}
                            {% set no_of_points = 4 %}
                        {% endif %}
                        {% if gis_data[a][type][i]['add_point'] is not null %}
                            {% set no_of_points = no_of_points + 1 %}
                        {% endif %}
                        <input type="hidden" value="{{ no_of_points }}" name="gis_data[{{ a }}][{{ type }}][{{ i }}][no_of_points]">

                        {% for j in 0..no_of_points - 1 %}
                            <br>
                            {{ 'Point %d:'|trans|format(j + 1) }}
                            <label for="x">{% trans 'X' %}</label>
                            <input type="text" name="gis_data[{{ a }}][{{ type }}][{{ i }}][{{ j }}][x]" value="{{ gis_data[a][type][i][j]['x'] }}">
                            <label for="y">{% trans 'Y' %}</label>
                            <input type="text" name="gis_data[{{ a }}][{{ type }}][{{ i }}][{{ j }}][y]" value="{{ gis_data[a][type][i][j]['y'] }}">
                        {% endfor %}
                        <input type="submit" name="gis_data[{{ a }}][{{ type }}][{{ i }}][add_point]" class="btn btn-secondary add addPoint" value="{% trans 'Add a point' %}">
                    {% endfor %}
                    <br>
                    <input type="submit" name="gis_data[{{ a }}][{{ type }}][add_line]" class="btn btn-secondary add addLine" value="
                        {{- type == 'MULTILINESTRING' ? 'Add a linestring'|trans : 'Add an inner ring'|trans }}">
                {% elseif type == 'MULTIPOLYGON' %}
                    {% set no_of_polygons = gis_data[a][type]['no_of_polygons'] ?? 1 %}
                    {% if no_of_polygons < 1 %}
                        {% set no_of_polygons = 1 %}
                    {% endif %}
                    {% if gis_data[a][type]['add_polygon'] is not null %}
                        {% set no_of_polygons = no_of_polygons + 1 %}
                    {% endif %}
                    <input type="hidden" name="gis_data[{{ a }}][{{ type }}][no_of_polygons]" value="{{ no_of_polygons }}">

                    {% for k in 0..no_of_polygons - 1 %}
                        <br>
                        {{ 'Polygon %d:'|trans|format(k + 1) }}
                        {% set no_of_lines = gis_data[a][type][k]['no_of_lines'] ?? 1 %}
                        {% if no_of_lines < 1 %}
                            {% set no_of_lines = 1 %}
                        {% endif %}
                        {% if gis_data[a][type][k]['add_line'] is not null %}
                            {% set no_of_lines = no_of_lines + 1 %}
                        {% endif %}
                        <input type="hidden" name="gis_data[{{ a }}][{{ type }}][{{ k }}][no_of_lines]" value="{{ no_of_lines }}">

                        {% for i in 0..no_of_lines - 1 %}
                            <br><br>
                            {% if i == 0 %}
                                {% trans 'Outer ring:' %}
                            {% else %}
                                {{ 'Inner ring %d:'|trans|format(i) }}
                            {% endif %}

                            {% set no_of_points = gis_data[a][type][k][i]['no_of_points'] ?? 4 %}
                            {% if no_of_points < 4 %}
                                {% set no_of_points = 4 %}
                            {% endif %}
                            {% if gis_data[a][type][k][i]['add_point'] is not null %}
                                {% set no_of_points = no_of_points + 1 %}
                            {% endif %}
                            <input type="hidden" name="gis_data[{{ a }}][{{ type }}][{{ k }}][{{ i }}][no_of_points]" value="{{ no_of_points }}">

                            {% for j in 0..no_of_points - 1 %}
                                <br>
                                {{ 'Point %d:'|trans|format(j + 1) }}
                                <label for="x">{% trans 'X' %}</label>
                                <input type="text" name="gis_data[{{ a }}][{{ type }}][{{ k }}][{{ i }}][{{ j }}][x]" value="{{ gis_data[a][type][k][i][j]['x'] }}">
                                <label for="y">{% trans 'Y' %}</label>
                                <input type="text" name="gis_data[{{ a }}][{{ type }}][{{ k }}][{{ i }}][{{ j }}][y]" value="{{ gis_data[a][type][k][i][j]['y'] }}">
                            {% endfor %}
                            <input type="submit" name="gis_data[{{ a }}][{{ type }}][{{ k }}][{{ i }}][add_point]" class="btn btn-secondary add addPoint" value="{% trans 'Add a point' %}">
                        {% endfor %}
                        <br>
                        <input type="submit" name="gis_data[{{ a }}][{{ type }}][{{ k }}][add_line]" class="btn btn-secondary add addLine" value="{% trans 'Add an inner ring' %}">
                        <br>
                    {% endfor %}
                    <br>
                    <input type="submit" name="gis_data[{{ a }}][{{ type }}][add_polygon]" class="btn btn-secondary add addPolygon" value="{% trans 'Add a polygon' %}">
                {% endif %}
              {% endif %}
            {% endfor %}
            {% if geom_type == 'GEOMETRYCOLLECTION' %}
                <br><br>
                <input type="submit" name="gis_data[GEOMETRYCOLLECTION][add_geom]" class="btn btn-secondary add addGeom" value="{% trans 'Add geometry' %}">
            {% endif %}
        </div>
        {# End of data section #}

        <br>
        <input class="btn btn-primary" type="submit" name="gis_data[save]" value="{% trans 'Go' %}">

        <div id="gis_data_output">
            <h3>{% trans 'Output' %}</h3>
            <p>
                {% trans 'Choose "GeomFromText" from the "Function" column and paste the string below into the "Value" field.' %}
            </p>
            <textarea id="gis_data_textarea" cols="95" rows="5">{{ result }}</textarea>
        </div>
    </div>
</form>