git://git.uio.no / ifi-stolz-refaktor.git / blame
| Commit | Line | Data |
|---|---|---|
| 1b2798f6 EK |
1 | /******************************************************************************* |
| 2 | * Copyright (c) 2000, 2011 IBM Corporation and others. | |
| 3 | * All rights reserved. This program and the accompanying materials | |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 | * which accompanies this distribution, and is available at | |
| 6 | * http://www.eclipse.org/legal/epl-v10.html | |
| 7 | * | |
| 8 | * Contributors: | |
| 9 | * IBM Corporation - initial API and implementation | |
| 10 | *******************************************************************************/ | |
| 11 | package org.eclipse.jdt.internal.ui.refactoring.nls; | |
| 12 | ||
| 13 | import org.eclipse.swt.widgets.Composite; | |
| 14 | import org.eclipse.swt.widgets.Control; | |
| 15 | ||
| 16 | import org.eclipse.core.runtime.Assert; | |
| 17 | ||
| 18 | import org.eclipse.jface.viewers.CellEditor; | |
| 19 | ||
| 20 | ||
| 21 | public class MultiStateCellEditor extends CellEditor { | |
| 22 | ||
| 23 | private int fValue; | |
| 24 | private final int fStateCount; | |
| 25 | ||
| 26 | /** | |
| 27 | * @param parent the parent | |
| 28 | * @param stateCount must be > 1 | |
| 29 | * @param initialValue initialValue | |
| 30 | */ | |
| 31 | public MultiStateCellEditor(Composite parent, int stateCount, int initialValue) { | |
| 32 | super(parent); | |
| 33 | Assert.isTrue(stateCount > 1, "incorrect state count"); //$NON-NLS-1$ | |
| 34 | fStateCount= stateCount; | |
| 35 | ||
| 36 | Assert.isTrue(initialValue >= 0 && initialValue < stateCount, "incorrect initial value"); //$NON-NLS-1$ | |
| 37 | fValue= initialValue; | |
| 38 | ||
| 39 | setValueValid(true); | |
| 40 | } | |
| 41 | ||
| 42 | /* | |
| 43 | * @see org.eclipse.jface.viewers.CellEditor#activate() | |
| 44 | */ | |
| 45 | @Override | |
| 46 | public void activate() { | |
| 47 | fValue= getNextValue(fStateCount, fValue); | |
| 48 | fireApplyEditorValue(); | |
| 49 | } | |
| 50 | ||
| 51 | public static int getNextValue(int stateCount, int currentValue){ | |
| 52 | Assert.isTrue(stateCount > 1, "incorrect state count"); //$NON-NLS-1$ | |
| 53 | Assert.isTrue(currentValue >= 0 && currentValue < stateCount, "incorrect initial value"); //$NON-NLS-1$ | |
| 54 | return (currentValue + 1) % stateCount; | |
| 55 | } | |
| 56 | ||
| 57 | /* | |
| 58 | * @see org.eclipse.jface.viewers.CellEditor#createControl(org.eclipse.swt.widgets.Composite) | |
| 59 | */ | |
| 60 | @Override | |
| 61 | protected Control createControl(Composite parent) { | |
| 62 | return null; | |
| 63 | } | |
| 64 | ||
| 65 | /* | |
| 66 | * @see org.eclipse.jface.viewers.CellEditor#doGetValue() | |
| 67 | * @return the Integer value | |
| 68 | */ | |
| 69 | @Override | |
| 70 | protected Object doGetValue() { | |
| 71 | return new Integer(fValue); | |
| 72 | } | |
| 73 | ||
| 74 | /* | |
| 75 | * @see org.eclipse.jface.viewers.CellEditor#doSetFocus() | |
| 76 | */ | |
| 77 | @Override | |
| 78 | protected void doSetFocus() { | |
| 79 | // ignore | |
| 80 | } | |
| 81 | ||
| 82 | /* | |
| 83 | * @see org.eclipse.jface.viewers.CellEditor#doSetValue(java.lang.Object) | |
| 84 | * @param value an Integer value | |
| 85 | * must be >=0 and < stateCount (value passed in the constructor) | |
| 86 | */ | |
| 87 | @Override | |
| 88 | protected void doSetValue(Object value) { | |
| 89 | Assert.isTrue(value instanceof Integer, "value must be Integer"); //$NON-NLS-1$ | |
| 90 | fValue = ((Integer) value).intValue(); | |
| 91 | Assert.isTrue(fValue >= 0 && fValue < fStateCount, "invalid value"); //$NON-NLS-1$ | |
| 92 | } | |
| 93 | } |