1 | package org.expeditee.agents;
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2 |
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3 | import java.util.ArrayList;
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4 | import java.util.Collections;
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5 | import java.util.Comparator;
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6 | import java.util.List;
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7 |
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8 | import org.expeditee.gui.Frame;
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9 | import org.expeditee.gui.FrameGraphics;
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10 | import org.expeditee.gui.FrameUtils;
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11 | import org.expeditee.items.Item;
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12 |
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13 | /**
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14 | * A simple formatting agent that aligns all non-annotation Items on the given
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15 | * Frame by the X and Y axis of the first Item on the Frame. This agent
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16 | * separates the items into columns, the actual alignment is done by
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17 | * FrameUtils.Align()
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18 | *
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19 | * @author jdm18
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20 | *
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21 | */
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22 | public class Format extends DefaultAgent {
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23 | // whether the Items could be formatted successfully
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24 | private boolean _success = true;
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25 |
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26 | // adjustmen from the default format spacing
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27 | private int _adjust = 0;
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28 |
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29 | public Format() {
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30 | }
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31 |
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32 | public Format(String param) {
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33 | try {
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34 | if (param.startsWith("+"))
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35 | param = param.substring(1);
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36 | _adjust = Integer.parseInt(param);
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37 | } catch (Exception e) {
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38 | e.printStackTrace();
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39 | }
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40 | }
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41 |
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42 | @Override
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43 | public Frame process(Frame start) {
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44 | ArrayList<Item> columnHeads = new ArrayList<Item>();
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45 |
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46 | ArrayList<ArrayList<Item>> columns = new ArrayList<ArrayList<Item>>();
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47 |
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48 | for (Item t : start.getBodyTextItems(true)) {
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49 | int col = findColumn(columnHeads, t);
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50 | // if this is the head of a new column
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51 | if (col < 0) {
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52 | columnHeads.add(t);
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53 | columns.add(new ArrayList<Item>());
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54 | // otherwise the column for this item has already been
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55 | // found set the column to be the one we just added...
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56 | col = columns.size() - 1;
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57 | } else
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58 | columns.get(col).add(t);
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59 | }
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60 |
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61 | // check for empty columns
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62 | int[] clear = new int[columnHeads.size()];
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63 | for (int i = 0; i < columns.size(); i++)
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64 | clear[i] = columns.get(i).size();
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65 |
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66 | // remove empty columns
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67 | for (int i = (clear.length - 1); i >= 0; i--)
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68 | if (clear[i] == 0) {
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69 | columns.remove(i);
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70 | columnHeads.remove(i);
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71 | }
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72 |
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73 | // if there are no columns to align, we are done
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74 | if (columns.size() == 0)
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75 | return null;
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76 |
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77 | // sort the column heads by X position
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78 | Collections.sort(columnHeads, new Comparator<Item>() {
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79 | public int compare(Item o1, Item o2) {
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80 | return o1.getX() - o2.getX();
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81 | }
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82 |
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83 | });
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84 |
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85 | // sort lists by their X axis
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86 | Collections.sort(columns, new Comparator<ArrayList<Item>>() {
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87 | public int compare(ArrayList<Item> o1, ArrayList<Item> o2) {
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88 | if (o2.size() == 0)
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89 | return -10;
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90 |
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91 | if (o1.size() == 0)
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92 | return 10;
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93 |
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94 | Item i1 = o1.get(0);
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95 | Item i2 = o2.get(0);
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96 |
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97 | return (i1.getX() - i2.getX());
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98 | }
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99 |
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100 | });
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101 |
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102 | int res = FrameUtils.Align(columns.get(0), true, _adjust);
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103 | _success = _success && (res >= 0);
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104 |
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105 | for (int i = 0; i < columns.size() - 1; i++) {
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106 | List<Item> list = columns.get(i);
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107 |
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108 | int maxX = 0;
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109 | int maxY = 0;
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110 | for (Item item : list) {
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111 | maxX = Math.max(maxX, item.getX() + item.getBoundsWidth());
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112 | maxY = Math.max(maxY, item.getY() + item.getBoundsHeight());
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113 | }
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114 |
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115 | int xCheck = maxX;
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116 | for (Item item : columns.get(i + 1))
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117 | xCheck = Math.max(xCheck, maxX
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118 | + /* item.getX() + */item.getBoundsWidth());
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119 |
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120 | if (xCheck < FrameGraphics.getMaxSize().width) {
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121 | if (columnHeads.get(i + 1).getX() < maxX
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122 | && columnHeads.get(i + 1).getY() < maxY)
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123 | columnHeads.get(i + 1).setX(maxX);
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124 |
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125 | for (Item item : columns.get(i + 1))
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126 | if (item.getX() < maxX && item.getY() < maxY)
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127 | item.setX(maxX);
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128 | }
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129 |
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130 | res = FrameUtils.Align(columns.get(i + 1), true, _adjust);
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131 | _success = _success && (res >= 0);
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132 | }
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133 |
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134 | // align all the separate columns
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135 | /*
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136 | * for(ArrayList<Item> l : columns){ int res = FrameUtils.Align(l,
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137 | * true); _success = _success && (res >= 0); }
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138 | */
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139 | start.setChanged(true);
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140 | FrameGraphics.Repaint();
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141 | return null;
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142 | }
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143 |
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144 | /**
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145 | * Finds which column contains the given Item, and returns the index to the
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146 | * column in the start & end lists. Returns -1 if no column is found that
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147 | * contains the given Item.
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148 | *
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149 | * @param toFind
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150 | * The Item to determine the correct column for
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151 | * @return The index of the column in the lists, or -1 if no column is found
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152 | */
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153 | private int findColumn(ArrayList<Item> columnHeads, Item toFind) {
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154 | for (Item top : columnHeads)
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155 | if (FrameUtils.inSameColumn(top, toFind))
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156 | return columnHeads.indexOf(top);
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157 |
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158 | return -1;
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159 | }
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160 |
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161 | @Override
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162 | protected void finalise(Frame start) {
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163 | if (_success)
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164 | overwriteMessage("Formatting complete.");
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165 | }
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166 |
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167 | @Override
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168 | protected void message(String message) {
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169 | }
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170 |
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171 | @Override
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172 | protected void overwriteMessage(String message) {
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173 | }
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174 |
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175 | }
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