SoundSoftware Code Site

var draw_gantt = null;

var draw_top;

var draw_right;

var draw_left;

var rels_stroke_width = 2;

function setDrawArea() {

  draw_top   = $("#gantt_draw_area").position().top;

  draw_right = $("#gantt_draw_area").width();

  draw_left  = $("#gantt_area").scrollLeft();

}

function getRelationsArray() {

  var arr = new Array();

  $.each($('div.task_todo[data-rels]'), function(index_div, element) {

    var element_id = $(element).attr("id");

    if (element_id != null) {

      var issue_id = element_id.replace("task-todo-issue-", "");

      var data_rels = $(element).data("rels");

      for (rel_type_key in data_rels) {

        $.each(data_rels[rel_type_key], function(index_issue, element_issue) {

          arr.push({issue_from: issue_id, issue_to: element_issue,

                    rel_type: rel_type_key});

        });

      }

    }

  });

  return arr;

}

function drawRelations() {

  var arr = getRelationsArray();

  $.each(arr, function(index_issue, element_issue) {

    var issue_from = $("#task-todo-issue-" + element_issue["issue_from"]);

    var issue_to   = $("#task-todo-issue-" + element_issue["issue_to"]);

    if (issue_from.size() == 0 || issue_to.size() == 0) {

      return;

    }

    var issue_height = issue_from.height();

    var issue_from_top   = issue_from.position().top  + (issue_height / 2) - draw_top;

    var issue_from_right = issue_from.position().left + issue_from.width();

    var issue_to_top   = issue_to.position().top  + (issue_height / 2) - draw_top;

    var issue_to_left  = issue_to.position().left;

    var color = issue_relation_type[element_issue["rel_type"]]["color"];

    var landscape_margin = issue_relation_type[element_issue["rel_type"]]["landscape_margin"];

    var issue_from_right_rel = issue_from_right + landscape_margin;

    var issue_to_left_rel    = issue_to_left    - landscape_margin;

    draw_gantt.path(["M", issue_from_right + draw_left,     issue_from_top,

                     "L", issue_from_right_rel + draw_left, issue_from_top])

                   .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

    if (issue_from_right_rel < issue_to_left_rel) {

      draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_from_top,

                       "L", issue_from_right_rel + draw_left, issue_to_top])

                     .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

      draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_to_top,

                       "L", issue_to_left + draw_left,        issue_to_top])

                     .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

    } else {

      var issue_middle_top = issue_to_top +

                                (issue_height *

                                   ((issue_from_top > issue_to_top) ? 1 : -1));

      draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_from_top,

                       "L", issue_from_right_rel + draw_left, issue_middle_top])

                     .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

      draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_middle_top,

                       "L", issue_to_left_rel + draw_left,    issue_middle_top])

                     .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

      draw_gantt.path(["M", issue_to_left_rel + draw_left, issue_middle_top,

                       "L", issue_to_left_rel + draw_left, issue_to_top])

                     .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

      draw_gantt.path(["M", issue_to_left_rel + draw_left, issue_to_top,

                       "L", issue_to_left + draw_left,     issue_to_top])

                     .attr({stroke: color,

                          "stroke-width": rels_stroke_width

                          });

    }

    draw_gantt.path(["M", issue_to_left + draw_left, issue_to_top,

                     "l", -4 * rels_stroke_width, -2 * rels_stroke_width,

                     "l", 0, 4 * rels_stroke_width, "z"])

                   .attr({stroke: "none",

                          fill: color,

                          "stroke-linecap": "butt",

                          "stroke-linejoin": "miter"

                          });

  });

}

function getProgressLinesArray() {

  var arr = new Array();

  var today_left = $('#today_line').position().left;

  arr.push({left: today_left, top: 0});

  $.each($('div.issue-subject, div.version-name'), function(index, element) {

    var t = $(element).position().top - draw_top ;

    var h = ($(element).height() / 9);

    var element_top_upper  = t - h;

    var element_top_center = t + (h * 3);

    var element_top_lower  = t + (h * 8);

    var issue_closed   = $(element).children('span').hasClass('issue-closed');

    var version_closed = $(element).children('span').hasClass('version-closed');

    if (issue_closed || version_closed) {

      arr.push({left: today_left, top: element_top_center});

    } else {

      var issue_done = $("#task-done-" + $(element).attr("id"));

      var is_behind_start = $(element).children('span').hasClass('behind-start-date');

      var is_over_end     = $(element).children('span').hasClass('over-end-date');

      if (is_over_end) {

        arr.push({left: draw_right, top: element_top_upper, is_right_edge: true});

        arr.push({left: draw_right, top: element_top_lower, is_right_edge: true, none_stroke: true});

      } else if (issue_done.size() > 0) {

        var done_left = issue_done.first().position().left +

                           issue_done.first().width();

        arr.push({left: done_left, top: element_top_center});

      } else if (is_behind_start) {

        arr.push({left: 0 , top: element_top_upper, is_left_edge: true});

        arr.push({left: 0 , top: element_top_lower, is_left_edge: true, none_stroke: true});

      } else {

        var todo_left = today_left;

        var issue_todo = $("#task-todo-" + $(element).attr("id"));

        if (issue_todo.size() > 0){

          todo_left = issue_todo.first().position().left;

        }

        arr.push({left: Math.min(today_left, todo_left), top: element_top_center});

      }

    }

  });

  return arr;

}

function drawGanttProgressLines() {

  var arr = getProgressLinesArray();

  var color = $("#today_line")

                    .css("border-left-color");

  var i;

  for(i = 1 ; i < arr.length ; i++) {

    if (!("none_stroke" in arr[i]) &&

        (!("is_right_edge" in arr[i - 1] && "is_right_edge" in arr[i]) &&

         !("is_left_edge"  in arr[i - 1] && "is_left_edge"  in arr[i]))

        ) {

      var x1 = (arr[i - 1].left == 0) ? 0 : arr[i - 1].left + draw_left;

      var x2 = (arr[i].left == 0)     ? 0 : arr[i].left     + draw_left;

      draw_gantt.path(["M", x1, arr[i - 1].top,

                       "L", x2, arr[i].top])

                   .attr({stroke: color, "stroke-width": 2});

    }

  }

}

function drawGanttHandler() {

  var folder = document.getElementById('gantt_draw_area');

  if(draw_gantt != null)

    draw_gantt.clear();

  else

    draw_gantt = Raphael(folder);

  setDrawArea();

  if ($("#draw_progress_line").attr('checked'))

    drawGanttProgressLines();

  if ($("#draw_rels").attr('checked'))

    drawRelations();

}