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- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
- * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
- * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- package com.dmdirc;
-
- import com.dmdirc.interfaces.Connection;
- import com.dmdirc.interfaces.GroupChat;
- import com.dmdirc.interfaces.PrivateChat;
- import com.dmdirc.interfaces.WindowModel;
-
- import java.io.Serializable;
- import java.util.Comparator;
-
- import static com.google.common.base.Preconditions.checkNotNull;
-
- /**
- * Compares FrameContainers by name.
- */
- public class WindowModelComparator implements Comparator<WindowModel>, Serializable {
-
- /** A version number for this class. */
- private static final long serialVersionUID = 1;
-
- /**
- * Compares two frame containers names.
- *
- * @param item1 The first container to compare
- * @param item2 The second container to compare
- *
- * @return -1 if item1 is before item2, 0 if they're equal, +1 if item1 is after item2.
- */
- @Override
- @Precondition({
- "item1 is non-null",
- "item2 is non-null",
- "item1.toString() returns a non-null value",
- "item2.toString() returns a non-null value"
- })
- public int compare(final WindowModel item1, final WindowModel item2) {
- checkNotNull(item1);
- checkNotNull(item2);
- checkNotNull(item1.getName());
- checkNotNull(item2.getName());
-
- if (sortBefore(item1, item2)) {
- return -1;
- } else if (sortAfter(item1, item2)) {
- return 1;
- } else {
- final int position = item1.getName()
- .compareToIgnoreCase(item2.getName());
- if (position == 0) {
- return Integer.valueOf(item1.hashCode()).compareTo(item2.hashCode());
- } else {
- return position;
- }
- }
- }
-
- /**
- * Compares frame container types and checks order preferences.
- *
- * @param item1 The new container to be tested
- * @param item2 The existing container to test against
- *
- * @return True iff the new container should be before the old container
- */
- private static boolean sortBefore(
- final WindowModel item1,
- final WindowModel item2) {
- return getPosition(item1) < getPosition(item2);
- }
-
- /**
- * Compares frame container types and checks order preferences.
- *
- * @param item1 The new container to be tested
- * @param item2 The existing container to test against
- *
- * @return True iff the new container should be after the old container
- */
- private static boolean sortAfter(final WindowModel item1,
- final WindowModel item2) {
- return getPosition(item1) > getPosition(item2);
- }
-
- /**
- * Returns an integer corresponding to the expected order of a frame container.
- *
- * @param item The frame container to be tested
- *
- * @return Position of the frame container
- */
- private static int getPosition(final WindowModel item) {
- // TODO: At some point theses will be separate from WindowModels.
- if (item instanceof GlobalWindow) {
- return 0;
- } else if (item instanceof Connection) {
- return 1;
- } else if (item instanceof GroupChat) {
- return 2;
- } else if (item instanceof PrivateChat) {
- return 3;
- } else {
- return 4;
- }
- }
-
- }
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