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/*******************************************************************************
* Copyright (c) 2001, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.sse.ui.preferences.ui;
import org.eclipse.jface.preference.FieldEditor;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.IntegerFieldEditor;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Assert;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.help.WorkbenchHelp;
import org.eclipse.wst.sse.ui.internal.SSEUIPlugin;
import org.eclipse.wst.sse.ui.internal.editor.IHelpContextIds;
import org.eclipse.wst.sse.ui.preferences.CommonEditorPreferenceNames;
public class TranslucencyPreferenceTab implements IPreferenceTab {
private PreferencePage fMainPreferencePage;
private IntegerFieldEditor fTranslucencyScale = null;
private final int MAX_PERCENTAGE = 100;
private IPropertyChangeListener validityChangeListener = new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
if (event.getProperty().equals(FieldEditor.IS_VALID))
updateValidState();
}
};
/**
*
*/
public TranslucencyPreferenceTab() {
super();
}
public TranslucencyPreferenceTab(PreferencePage mainPreferencePage) {
Assert.isNotNull(mainPreferencePage);
setMainPreferencePage(mainPreferencePage);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.sse.ui.preferences.ui.IPreferenceTab#createContents(org.eclipse.swt.widgets.Composite)
*/
public Control createContents(Composite tabFolder) {
Composite composite = new Composite(tabFolder, SWT.NULL);
GridLayout layout = new GridLayout();
layout.numColumns = 2;
composite.setLayout(layout);
String text = SSEUIPlugin.getResourceString("%TranslucencyPreferenceTab.1"); //$NON-NLS-1$
fTranslucencyScale = new IntegerFieldEditor(CommonEditorPreferenceNames.READ_ONLY_FOREGROUND_SCALE, text, composite);
fTranslucencyScale.setErrorMessage(JFaceResources.getString("StringFieldEditor.errorMessage"));//$NON-NLS-1$
fTranslucencyScale.setPreferenceStore(getPreferenceStore());
fTranslucencyScale.setPreferencePage(getMainPreferencePage());
fTranslucencyScale.setTextLimit(Integer.toString(MAX_PERCENTAGE).length());
fTranslucencyScale.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE);
fTranslucencyScale.setValidRange(0, MAX_PERCENTAGE);
fTranslucencyScale.load();
fTranslucencyScale.setPropertyChangeListener(validityChangeListener);
WorkbenchHelp.setHelp(composite, IHelpContextIds.PREFWEBX_READONLY_HELPID);
return composite;
}
/**
* @return Returns the fMainPreferencePage.
*/
private PreferencePage getMainPreferencePage() {
return fMainPreferencePage;
}
/**
* @return Returns the preference store used in this tab
*/
private IPreferenceStore getPreferenceStore() {
return SSEUIPlugin.getDefault().getPreferenceStore();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.sse.ui.preferences.ui.IPreferenceTab#getTitle()
*/
public String getTitle() {
return SSEUIPlugin.getResourceString("%TranslucencyPreferenceTab.0"); //$NON-NLS-1$
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.sse.ui.preferences.ui.IPreferenceTab#performApply()
*/
public void performApply() {
fTranslucencyScale.store();
SSEUIPlugin.getDefault().savePluginPreferences();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.sse.ui.preferences.ui.IPreferenceTab#performDefaults()
*/
public void performDefaults() {
fTranslucencyScale.loadDefault();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.wst.sse.ui.preferences.ui.IPreferenceTab#performOk()
*/
public void performOk() {
performApply();
}
/**
* @param mainPreferencePage
* The fMainPreferencePage to set.
*/
private void setMainPreferencePage(PreferencePage mainPreferencePage) {
fMainPreferencePage = mainPreferencePage;
}
private void updateValidState() {
if (getMainPreferencePage() != null) {
getMainPreferencePage().setValid(fTranslucencyScale.isValid());
}
}
}
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