/*******************************************************************************
* Copyright (c) 2000, 2010 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
* Anton Leherbauer (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.preferences;
import com.ibm.icu.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
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.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.cdt.ui.PreferenceConstants;
import org.eclipse.cdt.utils.ui.controls.ControlFactory;
import org.eclipse.cdt.internal.ui.ICHelpContextIds;
import org.eclipse.cdt.internal.ui.wizards.dialogfields.Separator;
public class ScalabilityPreferencePage extends PreferencePage implements
IWorkbenchPreferencePage {
// Files with this number of lines will trigger scalability mode
private IntegerFieldEditor fLinesToTrigger;
private Button fEnableAll;
private Button fReconciler;
private Button fSyntaxColor;
private Button fSemanticHighlighting;
private Button fContentAssist;
private Button fContentAssistAutoActivation;
private Map<Object, String> fCheckBoxes= new HashMap<Object, String>();
/**
* List of master/slave listeners when there's a dependency.
*
* @see #createDependency(Button, String, Control)
*/
private ArrayList<Object> fMasterSlaveListeners= new ArrayList<Object>();
public ScalabilityPreferencePage() {
setPreferenceStore(PreferenceConstants.getPreferenceStore());
setDescription(PreferencesMessages.ScalabilityPreferencePage_description);
}
/**
* Creates a button with the given label and sets the default configuration data.
*/
private Button createCheckButton( Composite parent, String label, String key ) {
Button button = new Button( parent, SWT.CHECK | SWT.LEFT );
button.setText( label );
// FieldEditor GridData
GridData data = new GridData();
button.setLayoutData( data );
fCheckBoxes.put(button, key);
return button;
}
private void initFields() {
IPreferenceStore prefs=getPreferenceStore();
Iterator<Object> iter= fCheckBoxes.keySet().iterator();
while (iter.hasNext()) {
Button b= (Button) iter.next();
String key= fCheckBoxes.get(b);
b.setSelection(prefs.getBoolean(key));
}
// Update slaves
iter= fMasterSlaveListeners.iterator();
while (iter.hasNext()) {
SelectionListener listener= (SelectionListener)iter.next();
listener.widgetSelected(null);
}
fLinesToTrigger.setStringValue(Integer.toString(prefs.getInt(PreferenceConstants.SCALABILITY_NUMBER_OF_LINES)));
}
/*
* @see PreferencePage#createControl(Composite)
*/
@Override
public void createControl(Composite parent) {
super.createControl(parent);
PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), ICHelpContextIds.SCALABILITY_PREFERENCE_PAGE);
}
/*
* @see PreferencePage#createContents(Composite)
*/
@Override
protected Control createContents(Composite parent) {
initializeDialogUnits(parent);
int nColumns= 1;
Composite composite= new Composite(parent, SWT.NONE);
GridLayout layout= new GridLayout();
layout.marginHeight= convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
layout.marginWidth= 0;
layout.numColumns= nColumns;
composite.setLayout(layout);
GridData data = new GridData();
data.verticalAlignment = GridData.FILL;
data.horizontalAlignment = GridData.FILL;
composite.setLayoutData( data );
createDetectionSettings(composite);
new Separator().doFillIntoGrid(composite, nColumns);
createScalabilityModeSettings(composite);
new Separator().doFillIntoGrid(composite, nColumns);
String noteTitle= PreferencesMessages.ScalabilityPreferencePage_note;
String noteMessage= PreferencesMessages.ScalabilityPreferencePage_preferenceOnlyForNewEditors;
Composite noteControl= createNoteComposite(JFaceResources.getDialogFont(), composite, noteTitle, noteMessage);
GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
gd.horizontalSpan= 2;
noteControl.setLayoutData(gd);
initFields();
Dialog.applyDialogFont(composite);
return composite;
}
/**
* Creates composite group and sets the default layout data.
*
* @param parent
* the parent of the new composite
* @param numColumns
* the number of columns for the new composite
* @param labelText
* the text label of the new composite
* @return the newly-created composite
*/
private Composite createGroupComposite( Composite parent, int numColumns, String labelText ) {
return ControlFactory.createGroup( parent, labelText, numColumns );
}
/**
* Create the view setting preferences composite widget
*/
private void createDetectionSettings( Composite parent ) {
Composite group = createGroupComposite( parent, 1, PreferencesMessages.ScalabilityPreferencePage_detection_group_label );
createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_detection_label,PreferenceConstants.SCALABILITY_ALERT);
Composite comp= new Composite(group, SWT.NONE);
fLinesToTrigger = new IntegerFieldEditor( PreferenceConstants.SCALABILITY_NUMBER_OF_LINES, PreferencesMessages.ScalabilityPreferencePage_trigger_lines_label, comp);
GridData data = (GridData)fLinesToTrigger.getTextControl( comp ).getLayoutData();
data.horizontalAlignment = GridData.BEGINNING;
data.widthHint = convertWidthInCharsToPixels( 11 );
fLinesToTrigger.setPage( this );
fLinesToTrigger.setValidateStrategy( StringFieldEditor.VALIDATE_ON_KEY_STROKE );
fLinesToTrigger.setValidRange( 1, Integer.MAX_VALUE );
String minValue = Integer.toString( 1 );
String maxValue = Integer.toString( Integer.MAX_VALUE );
fLinesToTrigger.setErrorMessage( MessageFormat.format(PreferencesMessages.ScalabilityPreferencePage_error, new Object[] {minValue, maxValue}) );
fLinesToTrigger.load();
fLinesToTrigger.setPropertyChangeListener( new IPropertyChangeListener() {
public void propertyChange( PropertyChangeEvent event ) {
if ( event.getProperty().equals( FieldEditor.IS_VALID ) )
setValid( fLinesToTrigger.isValid() );
}
} );
}
/**
* Create the view setting preferences composite widget
*/
private void createScalabilityModeSettings( Composite parent ) {
Composite group = createGroupComposite( parent, 1, PreferencesMessages.ScalabilityPreferencePage_scalabilityMode_group_label );
fEnableAll = createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_scalabilityMode_label, PreferenceConstants.SCALABILITY_ENABLE_ALL);
fReconciler = createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_reconciler_label, PreferenceConstants.SCALABILITY_RECONCILER);
createDependency(fEnableAll, PreferenceConstants.SCALABILITY_ENABLE_ALL, fReconciler, true);
fSemanticHighlighting = createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_semanticHighlighting_label, PreferenceConstants.SCALABILITY_SEMANTIC_HIGHLIGHT);
createDependency(fEnableAll, PreferenceConstants.SCALABILITY_ENABLE_ALL, fSemanticHighlighting, true);
fSyntaxColor = createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_syntaxColor_label, PreferenceConstants.SCALABILITY_SYNTAX_COLOR);
createDependency(fEnableAll, PreferenceConstants.SCALABILITY_ENABLE_ALL, fSyntaxColor, true);
fContentAssist = createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_contentAssist_label, PreferenceConstants.SCALABILITY_PARSER_BASED_CONTENT_ASSIST);
createDependency(fEnableAll, PreferenceConstants.SCALABILITY_ENABLE_ALL, fContentAssist, true);
fContentAssistAutoActivation = createCheckButton(group, PreferencesMessages.ScalabilityPreferencePage_contentAssist_autoActivation, PreferenceConstants.SCALABILITY_CONTENT_ASSIST_AUTO_ACTIVATION);
createDependency(fContentAssist, PreferenceConstants.SCALABILITY_PARSER_BASED_CONTENT_ASSIST, fContentAssistAutoActivation, true);
createDependency(fEnableAll, PreferenceConstants.SCALABILITY_ENABLE_ALL, fContentAssistAutoActivation, false);
}
private static void indent(Control control, GridData masterLayoutData) {
GridData gridData= new GridData();
gridData.horizontalIndent= masterLayoutData.horizontalIndent + 20;
control.setLayoutData(gridData);
}
private void createDependency(final Button master, String masterKey, final Control slave, boolean indent) {
if (indent) {
indent(slave, (GridData)master.getLayoutData());
}
boolean masterState= getPreferenceStore().getBoolean(masterKey);
slave.setEnabled(!masterState);
if (masterState) {
((Button)slave).setSelection(masterState);
}
SelectionListener listener= new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
slave.setEnabled(!master.getSelection());
if (master.getSelection()) {
((Button)slave).setSelection(master.getSelection());
}
}
public void widgetDefaultSelected(SelectionEvent e) {}
};
master.addSelectionListener(listener);
fMasterSlaveListeners.add(listener);
}
/*
* @see IWorkbenchPreferencePage#init(IWorkbench)
*/
public void init(IWorkbench workbench) {
}
/*
* @see IPreferencePage#performOk()
*/
@Override
public boolean performOk() {
IPreferenceStore prefs= getPreferenceStore();
Iterator<Object> iter= fCheckBoxes.keySet().iterator();
while (iter.hasNext()) {
Button b= (Button) iter.next();
String key= fCheckBoxes.get(b);
prefs.setValue(key, b.getSelection());
}
prefs.setValue(PreferenceConstants.SCALABILITY_NUMBER_OF_LINES, fLinesToTrigger.getIntValue());
return super.performOk();
}
/*
* @see PreferencePage#performDefaults()
*/
@Override
protected void performDefaults() {
IPreferenceStore prefs= getPreferenceStore();
Iterator<Object> iter= fCheckBoxes.keySet().iterator();
while (iter.hasNext()) {
Button b= (Button) iter.next();
String key= fCheckBoxes.get(b);
b.setSelection(prefs.getDefaultBoolean(key));
}
// Update slaves
iter= fMasterSlaveListeners.iterator();
while (iter.hasNext()) {
SelectionListener listener= (SelectionListener)iter.next();
listener.widgetSelected(null);
}
fLinesToTrigger.setStringValue(Integer.toString(prefs.getDefaultInt(PreferenceConstants.SCALABILITY_NUMBER_OF_LINES)));
}
}