| 1 | /* |
| 2 | * Copyright (C) 2010 Keith Kildare |
| 3 | * |
| 4 | * This file is part of SimplyDo. |
| 5 | * |
| 6 | * SimplyDo is free software: you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation, either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * SimplyDo is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with SimplyDo. If not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | package kdk.android.simplydo; |
| 21 | |
| 22 | import java.util.Collections; |
| 23 | import java.util.Comparator; |
| 24 | import java.util.List; |
| 25 | |
| 26 | import android.util.Log; |
| 27 | |
| 28 | public class ItemListSorter |
| 29 | { |
| 30 | public static final String PREF_NONE = "none"; |
| 31 | public static final String PREF_STARRED = "starred"; |
| 32 | public static final String PREF_ACTIVE_STARRED = "activityStarred"; |
| 33 | |
| 34 | private static final int NONE = 0; |
| 35 | private static final int STARRED = 1; |
| 36 | private static final int ACTIVE_STARRED = 2; |
| 37 | |
| 38 | private int sortingMode; |
| 39 | |
| 40 | private Comparator<ItemDesc> idCompare; |
| 41 | private Comparator<ItemDesc> starredCompare; |
| 42 | private Comparator<ItemDesc> activeStarredCompare; |
| 43 | |
| 44 | |
| 45 | public ItemListSorter() |
| 46 | { |
| 47 | idCompare = new Comparator<ItemDesc>() { |
| 48 | @Override |
| 49 | public int compare(ItemDesc object1, ItemDesc object2) |
| 50 | { |
| 51 | return object2.getId() - object1.getId(); |
| 52 | } |
| 53 | }; |
| 54 | |
| 55 | starredCompare = new Comparator<ItemDesc>() { |
| 56 | @Override |
| 57 | public int compare(ItemDesc o1, ItemDesc o2) |
| 58 | { |
| 59 | int w1 = o1.isStar()?1:0; |
| 60 | int w2 = o2.isStar()?1:0; |
| 61 | if(w2 == w1) |
| 62 | { |
| 63 | return o1.getLabel().compareToIgnoreCase(o2.getLabel()); |
| 64 | } |
| 65 | else |
| 66 | { |
| 67 | return w2 - w1; |
| 68 | } |
| 69 | } |
| 70 | }; |
| 71 | |
| 72 | activeStarredCompare = new Comparator<ItemDesc>() { |
| 73 | @Override |
| 74 | public int compare(ItemDesc o1, ItemDesc o2) |
| 75 | { |
| 76 | int w1 = (o1.isStar()?1:0) + (o1.isActive()?0:-2); |
| 77 | int w2 = (o2.isStar()?1:0) + (o2.isActive()?0:-2); |
| 78 | if(w2 == w1) |
| 79 | { |
| 80 | return o1.getLabel().compareToIgnoreCase(o2.getLabel()); |
| 81 | } |
| 82 | else |
| 83 | { |
| 84 | return w2 - w1; |
| 85 | } |
| 86 | } |
| 87 | }; |
| 88 | } |
| 89 | |
| 90 | public void setSortingMode(String mode) |
| 91 | { |
| 92 | if(PREF_NONE.equals(mode)) |
| 93 | { |
| 94 | sortingMode = NONE; |
| 95 | } |
| 96 | else if(PREF_STARRED.equals(mode)) |
| 97 | { |
| 98 | sortingMode = STARRED; |
| 99 | } |
| 100 | else if(PREF_ACTIVE_STARRED.equals(mode)) |
| 101 | { |
| 102 | sortingMode = ACTIVE_STARRED; |
| 103 | } |
| 104 | else |
| 105 | { |
| 106 | sortingMode = NONE; |
| 107 | Log.w(L.TAG, "Unknown item sorting mode " + mode); |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | |
| 112 | public void markEditUpdate(ItemDesc item) |
| 113 | { |
| 114 | switch(sortingMode) |
| 115 | { |
| 116 | case ACTIVE_STARRED: |
| 117 | case STARRED: |
| 118 | item.setSorted(false); |
| 119 | break; |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | |
| 124 | public void markActivityUpdate(ItemDesc item) |
| 125 | { |
| 126 | switch(sortingMode) |
| 127 | { |
| 128 | case ACTIVE_STARRED: |
| 129 | item.setSorted(false); |
| 130 | break; |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | |
| 135 | public void markStarredUpdate(ItemDesc item) |
| 136 | { |
| 137 | switch(sortingMode) |
| 138 | { |
| 139 | case ACTIVE_STARRED: |
| 140 | case STARRED: |
| 141 | item.setSorted(false); |
| 142 | break; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | |
| 147 | public void sort(List<ItemDesc> list) |
| 148 | { |
| 149 | if(list == null) |
| 150 | { |
| 151 | return; |
| 152 | } |
| 153 | |
| 154 | switch(sortingMode) |
| 155 | { |
| 156 | default: |
| 157 | Log.w(L.TAG, "Unknown item sorting enum " + sortingMode); |
| 158 | // fall through |
| 159 | case NONE: |
| 160 | // actually sorted by db id |
| 161 | Collections.sort(list, idCompare); |
| 162 | break; |
| 163 | case STARRED: |
| 164 | Collections.sort(list, starredCompare); |
| 165 | break; |
| 166 | case ACTIVE_STARRED: |
| 167 | Collections.sort(list, activeStarredCompare); |
| 168 | break; |
| 169 | } |
| 170 | |
| 171 | markAsSorted(list); |
| 172 | } |
| 173 | |
| 174 | private void markAsSorted(List<ItemDesc> items) |
| 175 | { |
| 176 | for(ItemDesc item : items) |
| 177 | { |
| 178 | item.setSorted(true); |
| 179 | } |
| 180 | } |
| 181 | } |