001: /*--
002:
003: Copyright (C) 2002 Anthony Eden.
004: All rights reserved.
005:
006: Redistribution and use in source and binary forms, with or without
007: modification, are permitted provided that the following conditions
008: are met:
009:
010: 1. Redistributions of source code must retain the above copyright
011: notice, this list of conditions, and the following disclaimer.
012:
013: 2. Redistributions in binary form must reproduce the above copyright
014: notice, this list of conditions, and the disclaimer that follows
015: these conditions in the documentation and/or other materials
016: provided with the distribution.
017:
018: 3. The names "OBE" and "Open Business Engine" must not be used to
019: endorse or promote products derived from this software without prior
020: written permission. For written permission, please contact
021: me@anthonyeden.com.
022:
023: 4. Products derived from this software may not be called "OBE" or
024: "Open Business Engine", nor may "OBE" or "Open Business Engine"
025: appear in their name, without prior written permission from
026: Anthony Eden (me@anthonyeden.com).
027:
028: In addition, I request (but do not require) that you include in the
029: end-user documentation provided with the redistribution and/or in the
030: software itself an acknowledgement equivalent to the following:
031: "This product includes software developed by
032: Anthony Eden (http://www.anthonyeden.com/)."
033:
034: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
035: WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
036: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
037: DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
038: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
039: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
040: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
041: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
042: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
043: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
044: POSSIBILITY OF SUCH DAMAGE.
045:
046: For more information on OBE, please see <http://obe.sourceforge.net/>.
047:
048: */
049:
050: package org.obe.designer.util;
051:
052: /** Class which represents a zoom scale.
053:
054: @author Anthony Eden
055: */
056:
057: public class Scale {
058:
059: public static final Scale[] DEFAULT_SET = { new Scale(2.0),
060: new Scale(1.75), new Scale(1.5), new Scale(1.25),
061: new Scale(1.0), new Scale(0.75), new Scale(0.5),
062: new Scale(0.25) };
063:
064: private double value;
065:
066: public Scale(double value) {
067: this .value = value;
068: }
069:
070: public double getValue() {
071: return value;
072: }
073:
074: public String toString() {
075: return (int) (value * 100) + "%";
076: }
077:
078: public boolean equals(Object object) {
079: if (object instanceof Scale) {
080: return ((Scale) object).getValue() == value;
081: }
082: return false;
083: }
084:
085: /** Parse the given String to create a Scale object. The given String can
086: either be a percentage value such as 110%, or it can be a double such
087: as 1.10.
088:
089: @param scale The scale String
090: @return The Scale object
091: @throws NumberFormatException
092: */
093:
094: public static Scale parseScale(String scale)
095: throws NumberFormatException {
096: scale = scale.trim();
097: if (scale.endsWith("%")) {
098: return new Scale(Double.parseDouble(scale.substring(0,
099: scale.length() - 1)) / 100);
100: } else {
101: return new Scale(Double.parseDouble(scale));
102: }
103: }
104:
105: }
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