dialog_canvas.html 28.6 KB
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<!DOCTYPE html>
<html>
  <head>
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    <meta charset="UTF-8">
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    <link id="page_style" rel="stylesheet" type="text/css" href="css/default.css">
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    <title>Canvas Dialog</title>
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  </head>
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  <body class="dialog_body">
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    <div class="container noselect">
    <form> 

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      <fieldset class="canvas"> 
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        <legend data-i18n="canvas.prop.heading.gop"></legend> 

        <table class="pairs">
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          <tr class="prop no_scroll hidden" data-i18n="[title]canvas.prop.no_scroll_tt">
            <td colspan="2">
              <label>
                <input type="checkbox" name="no_scroll" value="off">
                <span data-i18n="canvas.prop.no_scroll"></span>
              </label>
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            </td>
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          </tr>
          <tr class="prop no_menu hidden" data-i18n="[title]canvas.prop.no_menu_tt">
            <td colspan="2">
              <label>
                <input type="checkbox" name="no_menu" value="off">
                <span data-i18n="canvas.prop.no_menu"></span>
              </label>
            </td>
          </tr>
          <tr class="display_flags prop hidden" data-i18n="[title]canvas.prop.gop_tt">
            <td colspan="2">
              <label>
                <input type="checkbox" name="gop" value="on">
                <span data-i18n="canvas.prop.gop"></span>
              </label>
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            </td>
          </tr>
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          <tr class="x_pix prop hidden">
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            <td>
            </td>
            <td>
              <table>
                <tr>
                  <td> 
                    <label class="gop_opt" data-i18n="[title]canvas.prop.x_pix_tt">
                      <span data-i18n="canvas.prop.x_pix"></span>
                    </label>
                  </td>
                  <td data-i18n="[title]canvas.prop.x_pix_tt">
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                    <input class="gop_opt" type="text" name="x_pix">
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                  </td>
                  <td>
                    <label class="gop_opt" data-i18n="[title]canvas.prop.y_pix_tt">
                      <span data-i18n="canvas.prop.y_pix"></span>
                    </label>
                  </td>
                  <td data-i18n="[title]canvas.prop.y_pix_tt">
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                    <input class="gop_opt" type="text" name="y_pix">
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                  </td>
                </tr>
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                <tr class="x_margin prop hidden">
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                  <td>
                    <label class="gop_opt" data-i18n="[title]canvas.prop.x_margin_tt">
                      <span data-i18n="canvas.prop.x_margin"></span>
                    </label>
                  </td>
                  <td data-i18n="[title]canvas.prop.x_margin_tt">
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                    <input class="gop_opt" type="text" name="x_margin">
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                  </td>
                  <td>
                    <label class="gop_opt" data-i18n="[title]canvas.prop.y_margin_tt">
                      <span data-i18n="canvas.prop.y_margin"></span>
                    </label>
                  </td>
                  <td data-i18n="[title]canvas.prop.y_margin_tt">
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                    <input class="gop_opt" type="text" name="y_margin">
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                  </td>
                </tr>
              </table>
            </td>
          </tr>
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          <tr class="display_flags prop hide_name_row">
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            <td>
            </td>
            <td>
              <label class="gop_opt" data-i18n="[title]canvas.prop.hide_name_tt">
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                <input class="gop_opt" type="checkbox" name="hide_name" value="on">
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                <span data-i18n="canvas.prop.hide_name"></span>
              </label>
            </td>
          </tr>
        </table>
      </fieldset> 

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      <fieldset class="canvas"> 
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        <legend data-i18n="canvas.prop.heading.data_scaling"></legend> 
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<div style="display: inline-block; align: left;">
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          <div class="x_scale prop hidden">
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            <nobr>
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            <label class="no_gop_opt" data-i18n="[title]canvas.prop.x_scale_tt">
              <span data-i18n="canvas.prop.x_scale"></span>
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              <input class="no_gop_opt" type="text" name="x_scale">
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            </label>
            <label class="no_gop_opt" data-i18n="[title]canvas.prop.y_scale_tt">
              <span data-i18n="canvas.prop.y_scale"></span>
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              <input class="no_gop_opt" type="text" name="y_scale">
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            </label>
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            </nobr>
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          </div>

    <div class="gop-range">
        <div class="y1 prop hidden">
          <label class="gop_opt" data-i18n="[title]canvas.prop.y1_tt">
            <span data-i18n="canvas.prop.y1"></span>
            <br>
          <input class="gop_opt" type="text" name="y1">
          </label>
          <br>
        </div>

        <div class="x1 prop hidden">
          <label class="gop_opt" data-i18n="[title]canvas.prop.x1_tt">
            <span data-i18n="canvas.prop.x1"></span>
            <input class="gop_opt" type="text" name="x1">
          </label>
          <label class="gop_opt" data-i18n="[title]canvas.prop.x2_tt">
            <input class="gop_opt" type="text" name="x2">
            <span data-i18n="canvas.prop.x2"></span>
          </label>
          <br>
       </div>

       <div class="y2">
         <label class="gop_opt" data-i18n="[title]canvas.prop.y2_tt">
           <input class="gop_opt" type="text" name="y2">
           <br>
           <span data-i18n="canvas.prop.y2"></span>
         </label>
       </div>
    </div>
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</div>
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      </fieldset> 


      <fieldset id="arrays" class="hidden">
        <legend data-i18n="canvas.prop.heading.arrays"></legend> 

        <label class="arrays" data-i18n="[title]canvas.prop.array_name">
          <select id="arrays_select" class="hidden"></select>
        </label>

          <div class="array-name prop">
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            <label class="array-name"
                   data-i18n="[title]canvas.prop.array_name_tt">
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              <span data-i18n="canvas.prop.array_name"></span>
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              <input onchange="update_array_attr(this);"
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                     class="array-name"
                     type="text"
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                     name="array_name"
                     id="array_name_input">
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            </label>
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            <label class="array-size"
                   data-i18n="[title]canvas.prop.array_size_tt">
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              <span data-i18n="canvas.prop.array_size"></span>
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              <input onchange="update_array_attr(this);"
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                     class="array-size"
                     type="text"
                     name="array_size">
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            </label>
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            <br/>
            <label class="array-save"
                   data-i18n="[title]canvas.prop.array_save_tt">
              <input onchange="flag_change(this);"
                     type="checkbox"
                     name="array_save"
                     value="on">
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              <span data-i18n="canvas.prop.array_save"></span>
            </label>
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            <br/>
            <label class="array-jump"
                   data-i18n="[title]canvas.prop.array_jump_tt">
              <input onchange="flag_change(this);"
                     type="checkbox" name="array_jump" value="on">
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              <span data-i18n="canvas.prop.array_jump"></span>
            </label>
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            <br/>
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            <span data-i18n="canvas.prop.array_style"></span>
            <br/>
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            <table class="array_style">
              <tr>
                <td>
                  <label class="polygon"
                         data-i18n="[title]canvas.prop.array_polygon_tt">
                    <input class="array-style"
                           type="radio"
                           id="polygon"
                           value="0"
                           name="array_style"
                           onchange="flag_change(this);">
                    <span data-i18n="canvas.prop.array_polygon"></span>
                  </label>
                </td>
                <td>
                  <label class="points"
                         data-i18n="[title]canvas.prop.array_points_tt">
                    <input class="array-style"
                           type="radio"
                           id="points"
                           value="1"
                           name="array_style"
                           onchange="flag_change(this);">
                    <span data-i18n="canvas.prop.array_points"></span>
                  </label>
                </td>
              </tr>
              <tr>
                <td>
                  <label class="bezier-curve"
                         data-i18n="[title]canvas.prop.array_bezier_tt">
                    <input class="array-style"
                           type="radio"
                           id="bezier"
                           value="2"
                           name="array_style"
                           onchange="flag_change(this);">
                    <span data-i18n="canvas.prop.array_bezier"></span>
                  </label>
                </td>
                <td>
                  <label class="bar-graph"
                         data-i18n="[title]canvas.prop.array_bars_tt">
                    <input class="array-style"
                           type="radio"
                           id="bar-graph"
                           value="3"
                           name="array_style"
                           onchange="flag_change(this);">
                    <span data-i18n="canvas.prop.array_bars"></span>
                  </label>
                </td>
              </tr>
            </table>
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          </div>

      <div class="array-fill">
        <label data-i18n="[title]canvas.prop.array_fill_tt">
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          <input onchange="update_array_attr(this);"
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                 type="color"
                 name="array_fill">
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          <span data-i18n="canvas.prop.array_fill"></span>
        </label>
        <br>
      </div>

      <div class="array-outline">
        <label data-i18n="[title]canvas.prop.array_outline_tt">
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          <input onchange="update_array_attr(this);"
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                 type="color"
                 name="array_outline">
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          <span data-i18n="canvas.prop.array_outline"></span>
        </label>
        <br>
      </div>

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      <div class="array_in_existing_graph">
        <label class="array-in-existing-graph"
               data-i18n="[title]canvas.prop.array_in_existing_graph_tt">
          <input onchange="flag2_change(this);"
                 type="checkbox"
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                 id="array_in_existing_graph"
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                 name="array_in_existing_graph"
                 value="on">
          <span data-i18n="canvas.prop.array_in_existing_graph"></span>
        </label>
      </div>
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      <div class="array_delete">
        <label class="array-delete"
               data-i18n="[title]canvas.prop.array_delete_tt">
          <input onchange="array_delete_change(this);"
                 type="checkbox"
                 id="array_delete"
                 name="array_delete"
                 value="on">
          <span data-i18n="canvas.prop.array_delete"></span>
        </label>
      </div>
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      </fieldset> 

    <div class="submit_buttons">
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      <button type="button" id="ok_button" onClick="ok()" data-i18n="[title]iem.prop.ok_tt">
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        <span data-i18n="iem.prop.ok"></span>
      </button>
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      <button type="button" id="apply_button" onClick="apply()" data-i18n="[title]iem.prop.apply_tt">
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        <span data-i18n="iem.prop.apply"></span>
      </button>
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      <button type="button" onClick="cancel()" data-i18n="[title]iem.prop.close_tt">
        <span data-i18n="iem.prop.close"></span>
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      </button>
    </div>

  </form> 
  </div>      

  <script>
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"use strict";
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var gui = require("nw.gui");
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var pdgui = require("./pdgui.js");
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// For translations
var l = pdgui.get_local_string;
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// gui preset
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pdgui.skin.apply(window);
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var pd_object_callback;
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// nested arrays of attributes for each garray
// in this canvas
var pd_garray_attrs;
var new_array_dialog;
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function ok() {
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    // Put the focus on the "ok" button, to make sure we call the change
    // method for an attribute. For some reason I don't need to do this
    // in the iemgui dialog, but I haven't looked close to figure out why.
    // A lot of this could probably be abstracted out, but I'm not sure of
    // the best way to do that yet.
    document.getElementById("ok_button").focus();
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    apply();
    cancel();
}
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function toggle_fill_color(value) {
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    var fill_color_div =  document.getElementsByClassName("array-fill")[0];
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    if (value === 3) {
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        fill_color_div.classList.remove("hidden");
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    } else {
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        fill_color_div.classList.add("hidden");
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    }
}

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function flag_change(elem) {
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    var array_attr, arrays_select, name, value, flag;
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    arrays_select = document.getElementById("arrays_select");
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    array_attr = pd_garray_attrs[arrays_select.value];
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    name = elem.name;
    // get value from radio group, checked from checkboxes
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    if (name === "array_style") {
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        value = document.querySelector('input[name="array_style"]:checked').value;
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        // Toggle visibility of the fill color button-- only show for bar
        // graph style (= 3)
        toggle_fill_color(+value);
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    } else {
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        // "+" for casting boolean to number
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        value = +elem.checked;
    }
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    //pdgui.post("value is " + value);
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    flag = array_attr.array_flags;
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    switch (name) {
        case "array_save":
            flag &= ~1;    // clear the save bit
            flag |= value; // set it
            break;
        case "array_style":
            flag &= ~(1 << 2); // clear style bit 2...
            flag &= ~(1 << 1); // ... and style bit 1 ...
            flag += (2 * value); // set them
            break;
        case "array_jump":
            flag &= ~(1 << 4);
            flag += (16 * value);
            break;
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    }
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    array_attr.array_flags = flag;
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}
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function flag2_change(elem) {
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    var array_attr, arrays_select, name, value, flag;
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    arrays_select = document.getElementById("arrays_select");
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    array_attr = pd_garray_attrs[arrays_select.value];
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    name = elem.name;
    // get value from radio group, checked from checkboxes
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    // "+" for casting boolean to number
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    value = +elem.checked;
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    array_attr[name] = value;
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}
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function array_delete_change(elem) {
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    var arrays_select = document.getElementById("arrays_select"),
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        array_attr = pd_garray_attrs[arrays_select.value];
    array_attr.array_delete = elem.checked;
}

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// Placeholder for updating gop margins and coords when the dialog window
// is open. Ideally we want to keep a record of all changes so that clicking
// "Cancel" will undo all of the changes made inside the dialog. However this
// is non-trivial with the canvas dialog because of all the state changes
// one can make to an array in the same dialog. For that reason we replace the
// "Cancel" button with one called "Close".
// The function in pdgui to update the form fields when a user drags the
// dimensions and margins is also used for iemguis, which *do* have a "Cancel"
// button. So we just set up a dummy function here to adhere to that interface.
function update_attr(elem) {
    // do nothing for now...
}

function update_array_attr(elem) {
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    var array_index, array_attr, arrays_select, name;
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    arrays_select = document.getElementById("arrays_select");
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    array_attr = pd_garray_attrs[arrays_select.value];
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    name = elem.name;
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    array_attr[name] = elem.value;
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    if (elem.name === "array-fill") {
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        // Not sure what this was for...
        //array-fill
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    }
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}
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function array_choose(array_index) {
    var i, name, value, elem, style_index, style_opts,
        array_attr = pd_garray_attrs[array_index];
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    for (name in array_attr) {
        if (array_attr.hasOwnProperty(name)) {
            value = array_attr[name];
            switch (name) {
                case "array_gfxstub": break;
                case "array_flags":
                    // save contents
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                    elem = document.getElementsByName("array_save")[0];
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                    elem.checked = (value & 1) != 0;
                    // jump on click
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                    elem = document.getElementsByName("array_jump")[0];
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                    elem.checked = (value & 16) != 0;
                    // draw style
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                    style_opts = document.getElementsByName("array_style");
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                    style_index = (value & 6) >> 1;
                    elem = style_opts[style_index];
                    elem.checked = true;
                      // hide "fill" color if we're a bar graph style (= 3)
                    toggle_fill_color(style_index);
                    break;
                default:
                    // name, size, fill, and outline
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                    //pdgui.post("name is " + name);
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                    elem = document.getElementsByName(name)[0];
                    elem.value = value;
                    break;
            }
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        }
    }
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}
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var arrays_select = document.getElementById("arrays_select");
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arrays_select.addEventListener("change", function(evt) {
    array_choose(evt.target.value);
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});

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var gop_button = document.getElementsByName("gop")[0];
gop_button.addEventListener("click", function(evt) {
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    set_gop(this.checked);
});

function update_gop_form(opts, state) {
    var elem, i;
    for(i = 0; i < opts.length; i++) {
        elem = opts[i];
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        if (elem.type === "checkbox" ||
            elem.type === "text") {
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            elem.disabled = state ? false : true;
        }
        if (state) {
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            elem.classList.remove("disabled");
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        } else {
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            elem.classList.add("disabled");
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        }
    }
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}
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var gop_click_count = 0;

function show_sane_defaults() {
    var w, h, xoff, yoff;
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    w = document.getElementsByName("x_pix")[0];
    h = document.getElementsByName("y_pix")[0];
    xoff = document.getElementsByName("x_margin")[0];
    yoff = document.getElementsByName("y_margin")[0];
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    if (w.value === "0" && h.value === "0") {
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        w.value = 85;
        h.value = 60;
        xoff.value = 100;
        yoff.value = 100;
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    }
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    gop_click_count++;
}
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function show_gop_name_and_args_checkbutton(flag) {
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    var row = document.getElementsByClassName("hide_name_row")[0];
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    row.style.setProperty("visibility", flag ? "visible" : "hidden");
}

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function set_gop(state) {
    var gop_opts, no_gop_opts;
    if (state === true && gop_click_count === 0) {
        show_sane_defaults();
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    }
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    gop_opts = document.getElementsByClassName("gop_opt");
    no_gop_opts = document.getElementsByClassName("no_gop_opt");
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    update_gop_form(gop_opts, state);
    update_gop_form(no_gop_opts, state === false);
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    // Hide or show the "hide_name" row
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    show_gop_name_and_args_checkbutton(state);
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}
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function substitute_space(arg) {
    var fake_space = String.fromCharCode(11);
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    return arg.split(" ").join(fake_space);
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}
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function get_input(name) {
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    var elem = document.getElementsByName(name)[0];
    return (elem.type === "checkbox") ? elem.checked : elem.value;
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}
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// get a value from the garray attr array
function get_array_value(name, attrs) {
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    return attrs[name];
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}

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// for a new array, slot 4 is:
//   "0" to create the array in a new graph
//   "1" to create the array in existing graph
// for a graph with more than one array in it, slot 4 is:
//   "0" to do nothing
//   "1" to delete the array when the dialog is finished
// The deletion interface is bad, but it is also an obscure
// feature probably not worth improving.
function get_array_slot_4(attrs) {
    if (new_array_dialog) {
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        return document.getElementById("array_in_existing_graph").checked ?
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            "1" : "0";
    } else if (pd_garray_attrs.length > 1) {
        return attrs.array_delete ? "1" : "0";
    } else {
        return "0";
    }
}

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function apply() {
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    var gop, hide_name, slot_4;
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    // If this is a dialog to create a new array
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    // skip the canvas dialog callback
    if (!new_array_dialog) {
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        gop = +get_input("gop");
        hide_name = +get_input("hide_name");
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        pdgui.pdsend(pd_object_callback, "donecanvasdialog",
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            +get_input("x_scale"),
            +get_input("y_scale"),
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            (gop ? gop + 2 * hide_name : 0), // No hide_name bit if gop is off
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            +get_input("x1"),
            +get_input("y1"),
            +get_input("x2"),
            +get_input("y2"),
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            +get_input("x_pix"),
            +get_input("y_pix"),
            +get_input("x_margin"),
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            +get_input("y_margin"),
            +get_input("no_scroll"),
            +get_input("no_menu")
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        );
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    }
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    // Now send the array properties, in a separate
    // message for each array
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    pd_garray_attrs.forEach(function(attrs) {
        var i;
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        name = get_array_value("array_name", attrs);
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        var arr = name.split("");
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        // This is a bit too complicated-- isn't there a standardized
        // interface for doing this?
        for (i = 0; i < arr.length; i++) {
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            if (arr[i] === "$" && i+1 < arr.length &&
                arr[i+1] >= "0" && arr[i+1] <= "9") {
                arr[i] = "#";
            }
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        }
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        name = arr.join("");
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        pdgui.pdsend(
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            get_array_value("array_gfxstub", attrs),
            "arraydialog",
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            name,
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            get_array_value("array_size", attrs),
            get_array_value("array_flags", attrs),
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            get_array_slot_4(attrs),
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            0, // xdraw-- not sure if this is still used
            0, // ydraw-- not sure if this is still used
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            get_array_value("array_fill", attrs),
            get_array_value("array_outline", attrs)
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        );
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    });
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}
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function cancel() {
    var i, attrs, gfxstub;
    //window.close(true);
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    pdgui.pdsend(pd_object_callback, "cancel");
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    for (i = 0; i < pd_garray_attrs.length; i++) {
        attrs = pd_garray_attrs[i];
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        gfxstub = attrs.array_gfxstub;
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        pdgui.pdsend(gfxstub, "cancel");
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    }
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}
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function populate_array_form(objects) {
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    var arrays_select = document.getElementById("arrays_select"),
        a_field = document.getElementById("arrays"),
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        opt, i;
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    a_field.classList.remove("hidden");
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    if (objects.length > 1) {
        // show the select element if there's more than one array
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        arrays_select.classList.remove("hidden");
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    }
    for (i = 0; i < objects.length; i++) {
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        opt = document.createElement("option");
        opt.setAttribute("value", i);
        opt.textContent = "Array #" + (i+1);
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        arrays_select.appendChild(opt);
    }
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    // The "array in existing graph" interface is horrible. There should
    // just be a button in the graph dialog to create an additional array
    // if the user really wants to do that. Nevertheless, I just added a
    // color key for multi-array graphs. So I guess it should be "discoverable"
    // through this horrible interface.
    if (!new_array_dialog) {
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        document.getElementsByClassName("array_in_existing_graph")[0]
            .classList.add("hidden");
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    }
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    // Hide the "delete this array" button if we don't have
    // more than one array
    if (new_array_dialog || objects.length < 2) {
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        document.getElementsByClassName("array_delete")[0].classList.add("hidden");
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    }
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    array_choose(0);
}
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// Set up arrays in an object
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function init_arrays(attr_objects) {
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    if (attr_objects.length) {
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        // populate form with first array
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        populate_array_form(attr_objects);
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        // hide x1 and x2 for garrays-- they
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        // automatically get set to the array size
        document.getElementsByName("x1")[0].disabled = true;
        document.getElementsByName("x2")[0].disabled = true;
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    }
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}
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// This gets called from the nw_create_window function in index.html
// It provides us with our window id from the C side.  Once we have it
// we can create the menu and register event callbacks
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function register_window_id(gfxstub, attr_objects) {
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    pd_object_callback = gfxstub;
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    var canvas_fieldsets, i, prop;
    // attr_objects[0]: canvas properties
    // attr_objects[1...n-1]: array properties
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    add_events(gfxstub);
    // not sure that we need this for properties windows...
    // pdgui.canvas_map(gfxstub);
    translate_form();
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    // If this is a new array dialog we might not have any canvas
    // properties to set. If so, just show the array form elements
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    if (attr_objects[0].hasOwnProperty("array_gfxstub")) {
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        pd_garray_attrs = attr_objects;
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        new_array_dialog = true; // this is a new array dialog
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        canvas_fieldsets = document.getElementsByClassName("canvas");
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        for (i = 0; i < canvas_fieldsets.length; i++) {
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            canvas_fieldsets[i].classList.add("hidden");
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        }
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        // Hide the "Apply" button, as it doesn't make sense for
        // creating a new array
        document.getElementById("apply_button").style.setProperty("display",
            "none");
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    } else {
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        pd_garray_attrs = attr_objects.slice(1);
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        new_array_dialog = false; // this is a canvas/array props dialog
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        populate_form(attr_objects[0]);
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    }
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        init_arrays(pd_garray_attrs);
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    // Disabling the menus does not yet work, so we hide that button for
    // the moment
    document.getElementsByClassName("no_menu")[0].style.setProperty("display",
        "none");
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    // We don't turn on rendering of the "container" div until
    // We've finished displaying all the spans and populating the
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    // labels and form elements.  That makes it snappier, at least
    // on older machines.
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    document.getElementsByClassName("container")[0].style.setProperty("display", "inline");
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    pdgui.resize_window(pd_object_callback);
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}

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function tr_text(id) {
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    var elem = document.getElementById("iem.prop." + id);
    elem.textContent = l("iem.prop." + id);
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}

// Stop-gap translator
function translate_form() {
    var i
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    var elements = document.querySelectorAll("[data-i18n]");
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    for (i = 0; i < elements.length; i++) {
        var data = elements[i].dataset.i18n;
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        if (data.slice(0,7) === "[title]") {
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            elements[i].title = l(data.slice(7));
        } else {
            elements[i].textContent = l(data);
        }
    }
}

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function populate_form(attr_object) {
    var prop;
    for (prop in attr_object) {
        if (attr_object.hasOwnProperty(prop)) {
            // Unhide the span with the class with the same name as the id
            var prop_group = document.getElementsByClassName(prop)[0];
            if (prop_group !== undefined) {
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                prop_group.classList.remove("hidden");
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            }
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            if (prop === "display_flags") {
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                // reminder: "!!" forces Boolean, "+" forces Number type
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                var flag = +attr_object[prop];
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                document.getElementsByName("gop")[0].checked = !!flag;
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                document.getElementsByName("hide_name")[0].checked = !!(flag & 2);
                // set visibility of the "hide_name" checkbox based on
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                // the gop flag. This way users don't get the idea that it
                // can be set independently of gop.
                show_gop_name_and_args_checkbutton(!!flag);
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                // Set the gop-related parts of the form to be
                // enabled/disabled based on state
                set_gop(!!flag);
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            }
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            var elem = document.getElementsByName(prop);
            if (elem.length > 0) {
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                if(prop.slice(-5) === "color") {
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                    var hex_string = Number(attr_object[prop]).toString(16);
                    var color_string = "#" +
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                        (hex_string === "0" ? "000000" : hex_string);
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                    elem[0].value = color_string;
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                } else if (elem[0].type === "checkbox") {
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                    // The attr here is a string, so we need to
                    // force it to number, hence the "+" below
                    elem[0].checked = +attr_object[prop];
                } else {
                    elem[0].value = attr_object[prop];
                }
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            }
        }
    }
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    // Some special cases for hiding options for garray dialogs
    if (pd_garray_attrs.length > 0) {
        // Graph-on-parent toggle
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        document.getElementsByClassName("display_flags")[0]
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            .classList.add("hidden");
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        // Graph-on-parent flag for hiding object name/args
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        document.getElementsByClassName("display_flags")[1]
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            .classList.add("hidden");
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        // GOP-rect margins don't make sense for garrays, so hide them
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        document.getElementsByClassName("x_margin")[0]
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            .classList.add("hidden");
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        // X/Y scaling-- garray is always in a gop so not needed
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        document.getElementsByClassName("x_scale")[0]
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            .classList.add("hidden");
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        // scrollbars and menu
        document.getElementsByClassName("no_scroll")[0]
            .classList.add("hidden");
         document.getElementsByClassName("no_menu")[0]
            .classList.add("hidden");
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    }
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}

function add_events(name) {
    // closing the Window
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    gui.Window.get().on("close", function() {
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        // this needs to do whatever the "cancel" button does
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        cancel();
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    });
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    pdgui.dialog_bindings(name);
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}

  </script>
  </body>
</html>