001: /* ====================================================================
002: * The JRefactory License, Version 1.0
003: *
004: * Copyright (c) 2001 JRefactory. 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 following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * 3. The end-user documentation included with the redistribution,
019: * if any, must include the following acknowledgment:
020: * "This product includes software developed by the
021: * JRefactory (http://www.sourceforge.org/projects/jrefactory)."
022: * Alternately, this acknowledgment may appear in the software itself,
023: * if and wherever such third-party acknowledgments normally appear.
024: *
025: * 4. The names "JRefactory" must not be used to endorse or promote
026: * products derived from this software without prior written
027: * permission. For written permission, please contact seguin@acm.org.
028: *
029: * 5. Products derived from this software may not be called "JRefactory",
030: * nor may "JRefactory" appear in their name, without prior written
031: * permission of Chris Seguin.
032: *
033: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
034: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
035: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
036: * DISCLAIMED. IN NO EVENT SHALL THE CHRIS SEGUIN OR
037: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
038: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
039: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
040: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
041: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
042: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
043: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
044: * SUCH DAMAGE.
045: * ====================================================================
046: *
047: * This software consists of voluntary contributions made by many
048: * individuals on behalf of JRefactory. For more information on
049: * JRefactory, please see
050: * <http://www.sourceforge.org/projects/jrefactory>.
051: */
052: package org.acm.seguin.ide.elixir;
053:
054: import com.elixirtech.fx.*;
055: import com.elixirtech.ide.edit.*;
056:
057: /**
058: * Handles all the diagram zooming for Elixir IDE
059: *
060: *@author Chris Seguin
061: *@created October 18, 2001
062: */
063: public class ZoomDiagram {
064:
065: /**
066: * Gets the Manager attribute of the ZoomDiagram class
067: *
068: *@return The Manager value
069: */
070: private static ViewManager getManager() {
071: FrameManager fm = FrameManager.current();
072: if (fm == null) {
073: return null;
074: }
075: if (fm.getViewSite() == null) {
076: return null;
077: }
078: return (ViewManager) fm.getViewSite().getCurrentViewManager();
079: }
080:
081: /**
082: * Scales to 50%
083: */
084: public static void fiftyPercent() {
085: work(0.5);
086: }
087:
088: /**
089: * Scales to 100%
090: */
091: public static void fullSize() {
092: work(1.0);
093: }
094:
095: /**
096: * Scales the diagram
097: *
098: *@param manager the manager
099: *@param scaleFactor the amount to scale
100: */
101: private static void scale(UMLViewManager manager, double scaleFactor) {
102: manager.getDiagram().scale(scaleFactor);
103: manager.getDiagram().repaint();
104: }
105:
106: /**
107: * Scales to 10%
108: */
109: public static void tenPercent() {
110: work(0.1);
111: }
112:
113: /**
114: * Scales to 25%
115: */
116: public static void twentyfivePercent() {
117: work(0.25);
118: }
119:
120: /**
121: * actually performs the scaling if it is appropriate
122: *
123: *@param scaleFactor The amount to scale the diagram by
124: */
125: private static void work(double scaleFactor) {
126: ViewManager bvm = getManager();
127: if ((bvm != null) && (bvm instanceof UMLViewManager)) {
128: scale((UMLViewManager) bvm, scaleFactor);
129: }
130: }
131: }
132: // EOF
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