Chris@1295: var draw_gantt = null;
Chris@1295: var draw_top;
Chris@1295: var draw_right;
Chris@1295: var draw_left;
Chris@1295: 
Chris@1295: var rels_stroke_width = 2;
Chris@1295: 
Chris@1295: function setDrawArea() {
Chris@1295:   draw_top   = $("#gantt_draw_area").position().top;
Chris@1295:   draw_right = $("#gantt_draw_area").width();
Chris@1295:   draw_left  = $("#gantt_area").scrollLeft();
Chris@1295: }
Chris@1295: 
Chris@1295: function getRelationsArray() {
Chris@1295:   var arr = new Array();
Chris@1295:   $.each($('div.task_todo[data-rels]'), function(index_div, element) {
Chris@1295:     var element_id = $(element).attr("id");
Chris@1295:     if (element_id != null) {
Chris@1295:       var issue_id = element_id.replace("task-todo-issue-", "");
Chris@1295:       var data_rels = $(element).data("rels");
Chris@1295:       for (rel_type_key in data_rels) {
Chris@1295:         $.each(data_rels[rel_type_key], function(index_issue, element_issue) {
Chris@1295:           arr.push({issue_from: issue_id, issue_to: element_issue,
Chris@1295:                     rel_type: rel_type_key});
Chris@1295:         });
Chris@1295:       }
Chris@1295:     }
Chris@1295:   });
Chris@1295:   return arr;
Chris@1295: }
Chris@1295: 
Chris@1295: function drawRelations() {
Chris@1295:   var arr = getRelationsArray();
Chris@1295:   $.each(arr, function(index_issue, element_issue) {
Chris@1295:     var issue_from = $("#task-todo-issue-" + element_issue["issue_from"]);
Chris@1295:     var issue_to   = $("#task-todo-issue-" + element_issue["issue_to"]);
Chris@1295:     if (issue_from.size() == 0 || issue_to.size() == 0) {
Chris@1295:       return;
Chris@1295:     }
Chris@1295:     var issue_height = issue_from.height();
Chris@1295:     var issue_from_top   = issue_from.position().top  + (issue_height / 2) - draw_top;
Chris@1295:     var issue_from_right = issue_from.position().left + issue_from.width();
Chris@1295:     var issue_to_top   = issue_to.position().top  + (issue_height / 2) - draw_top;
Chris@1295:     var issue_to_left  = issue_to.position().left;
Chris@1295:     var color = issue_relation_type[element_issue["rel_type"]]["color"];
Chris@1295:     var landscape_margin = issue_relation_type[element_issue["rel_type"]]["landscape_margin"];
Chris@1295:     var issue_from_right_rel = issue_from_right + landscape_margin;
Chris@1295:     var issue_to_left_rel    = issue_to_left    - landscape_margin;
Chris@1295:     draw_gantt.path(["M", issue_from_right + draw_left,     issue_from_top,
Chris@1295:                      "L", issue_from_right_rel + draw_left, issue_from_top])
Chris@1295:                    .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:     if (issue_from_right_rel < issue_to_left_rel) {
Chris@1295:       draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_from_top,
Chris@1295:                        "L", issue_from_right_rel + draw_left, issue_to_top])
Chris@1295:                      .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:       draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_to_top,
Chris@1295:                        "L", issue_to_left + draw_left,        issue_to_top])
Chris@1295:                      .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:     } else {
Chris@1295:       var issue_middle_top = issue_to_top +
Chris@1295:                                 (issue_height *
Chris@1295:                                    ((issue_from_top > issue_to_top) ? 1 : -1));
Chris@1295:       draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_from_top,
Chris@1295:                        "L", issue_from_right_rel + draw_left, issue_middle_top])
Chris@1295:                      .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:       draw_gantt.path(["M", issue_from_right_rel + draw_left, issue_middle_top,
Chris@1295:                        "L", issue_to_left_rel + draw_left,    issue_middle_top])
Chris@1295:                      .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:       draw_gantt.path(["M", issue_to_left_rel + draw_left, issue_middle_top,
Chris@1295:                        "L", issue_to_left_rel + draw_left, issue_to_top])
Chris@1295:                      .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:       draw_gantt.path(["M", issue_to_left_rel + draw_left, issue_to_top,
Chris@1295:                        "L", issue_to_left + draw_left,     issue_to_top])
Chris@1295:                      .attr({stroke: color,
Chris@1295:                           "stroke-width": rels_stroke_width
Chris@1295:                           });
Chris@1295:     }
Chris@1295:     draw_gantt.path(["M", issue_to_left + draw_left, issue_to_top,
Chris@1295:                      "l", -4 * rels_stroke_width, -2 * rels_stroke_width,
Chris@1295:                      "l", 0, 4 * rels_stroke_width, "z"])
Chris@1295:                    .attr({stroke: "none",
Chris@1295:                           fill: color,
Chris@1295:                           "stroke-linecap": "butt",
Chris@1295:                           "stroke-linejoin": "miter"
Chris@1295:                           });
Chris@1295:   });
Chris@1295: }
Chris@1295: 
Chris@1295: function getProgressLinesArray() {
Chris@1295:   var arr = new Array();
Chris@1295:   var today_left = $('#today_line').position().left;
Chris@1295:   arr.push({left: today_left, top: 0});
Chris@1295:   $.each($('div.issue-subject, div.version-name'), function(index, element) {
Chris@1295:     var t = $(element).position().top - draw_top ;
Chris@1295:     var h = ($(element).height() / 9);
Chris@1295:     var element_top_upper  = t - h;
Chris@1295:     var element_top_center = t + (h * 3);
Chris@1295:     var element_top_lower  = t + (h * 8);
Chris@1295:     var issue_closed   = $(element).children('span').hasClass('issue-closed');
Chris@1295:     var version_closed = $(element).children('span').hasClass('version-closed');
Chris@1295:     if (issue_closed || version_closed) {
Chris@1295:       arr.push({left: today_left, top: element_top_center});
Chris@1295:     } else {
Chris@1295:       var issue_done = $("#task-done-" + $(element).attr("id"));
Chris@1295:       var is_behind_start = $(element).children('span').hasClass('behind-start-date');
Chris@1295:       var is_over_end     = $(element).children('span').hasClass('over-end-date');
Chris@1295:       if (is_over_end) {
Chris@1295:         arr.push({left: draw_right, top: element_top_upper, is_right_edge: true});
Chris@1295:         arr.push({left: draw_right, top: element_top_lower, is_right_edge: true, none_stroke: true});
Chris@1295:       } else if (issue_done.size() > 0) {
Chris@1295:         var done_left = issue_done.first().position().left +
Chris@1295:                            issue_done.first().width();
Chris@1295:         arr.push({left: done_left, top: element_top_center});
Chris@1295:       } else if (is_behind_start) {
Chris@1295:         arr.push({left: 0 , top: element_top_upper, is_left_edge: true});
Chris@1295:         arr.push({left: 0 , top: element_top_lower, is_left_edge: true, none_stroke: true});
Chris@1295:       } else {
Chris@1295:         var todo_left = today_left;
Chris@1295:         var issue_todo = $("#task-todo-" + $(element).attr("id"));
Chris@1295:         if (issue_todo.size() > 0){
Chris@1295:           todo_left = issue_todo.first().position().left;
Chris@1295:         }
Chris@1295:         arr.push({left: Math.min(today_left, todo_left), top: element_top_center});
Chris@1295:       }
Chris@1295:     }
Chris@1295:   });
Chris@1295:   return arr;
Chris@1295: }
Chris@1295: 
Chris@1295: function drawGanttProgressLines() {
Chris@1295:   var arr = getProgressLinesArray();
Chris@1295:   var color = $("#today_line")
Chris@1295:                     .css("border-left-color");
Chris@1295:   var i;
Chris@1295:   for(i = 1 ; i < arr.length ; i++) {
Chris@1295:     if (!("none_stroke" in arr[i]) &&
Chris@1295:         (!("is_right_edge" in arr[i - 1] && "is_right_edge" in arr[i]) &&
Chris@1295:          !("is_left_edge"  in arr[i - 1] && "is_left_edge"  in arr[i]))
Chris@1295:         ) {
Chris@1295:       var x1 = (arr[i - 1].left == 0) ? 0 : arr[i - 1].left + draw_left;
Chris@1295:       var x2 = (arr[i].left == 0)     ? 0 : arr[i].left     + draw_left;
Chris@1295:       draw_gantt.path(["M", x1, arr[i - 1].top,
Chris@1295:                        "L", x2, arr[i].top])
Chris@1295:                    .attr({stroke: color, "stroke-width": 2});
Chris@1295:     }
Chris@1295:   }
Chris@1295: }
Chris@1295: 
Chris@1295: function drawGanttHandler() {
Chris@1295:   var folder = document.getElementById('gantt_draw_area');
Chris@1295:   if(draw_gantt != null)
Chris@1295:     draw_gantt.clear();
Chris@1295:   else
Chris@1295:     draw_gantt = Raphael(folder);
Chris@1295:   setDrawArea();
Chris@1295:   if ($("#draw_progress_line").attr('checked'))
Chris@1295:     drawGanttProgressLines();
Chris@1295:   if ($("#draw_rels").attr('checked'))
Chris@1295:     drawRelations();
Chris@1295: }