mirror of
https://github.com/apache/cloudstack.git
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93 lines
2.5 KiB
Java
93 lines
2.5 KiB
Java
/**
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* Copyright (C) 2010 Cloud.com, Inc. All rights reserved.
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*
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* This software is licensed under the GNU General Public License v3 or later.
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*
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* It is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package com.cloud.console;
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import java.awt.Rectangle;
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import java.util.ArrayList;
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import java.util.List;
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public class Region {
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private Rectangle bound;
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private List<Rectangle> rectList;
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public Region() {
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bound = new Rectangle(0, 0, 0, 0);
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rectList = new ArrayList<Rectangle>();
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}
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public Region(Rectangle rect) {
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bound = new Rectangle(rect.x, rect.y, rect.width, rect.height);
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rectList = new ArrayList<Rectangle>();
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rectList.add(rect);
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}
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public Rectangle getBound() {
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return bound;
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}
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public void clearBound() {
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assert(rectList.size() == 0);
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bound.x = bound.y = bound.width = bound.height = 0;
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}
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public List<Rectangle> getRectangles() {
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return rectList;
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}
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public boolean add(Rectangle rect) {
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if(bound.isEmpty()) {
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assert(rectList.size() == 0);
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bound.x = rect.x;
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bound.y = rect.y;
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bound.width = rect.width;
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bound.height = rect.height;
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rectList.add(rect);
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return true;
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}
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Rectangle rcInflated = new Rectangle(rect.x - 1, rect.y- 1, rect.width + 2, rect.height + 2);
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if(!bound.intersects(rcInflated))
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return false;
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for(Rectangle r : rectList) {
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if(r.intersects(rcInflated)) {
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if(!r.contains(rect)) {
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enlargeBound(rect);
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rectList.add(rect);
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return true;
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}
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}
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}
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return false;
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}
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private void enlargeBound(Rectangle rect) {
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int boundLeft = Math.min(bound.x, rect.x);
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int boundTop = Math.min(bound.y, rect.y);
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int boundRight = Math.max(bound.x + bound.width, rect.x + rect.width);
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int boundBottom = Math.max(bound.y + bound.height, rect.y + rect.height);
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bound.x = boundLeft;
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bound.y = boundTop;
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bound.width = boundRight - boundLeft;
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bound.height = boundBottom - boundTop;
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}
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}
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