/*******************************************************************************
* Copyright (c) 2014, 2015 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
* Moshe Wajnberg - <wajnberg@il.ibm.com> -
******************************************************************************/
package org.eclipse.ui.internal.dialogs;
import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.LayoutConstants;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.util.BidiUtils;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.IPreferenceConstants;
import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchPlugin;
import org.eclipse.ui.internal.util.PrefUtil;
/**
* Globalization preference page.
*/
public class GlobalizationPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
private Combo layoutDirectionCombo;
private Button bidiSupportClickButton;
private Combo textDirectionCombo;
private StringFieldEditor nlExtensionsField;
private int layoutDirection;
private boolean bidiSupport;
private String textDirection;
private static final String DEFAULT_DIR = WorkbenchMessages.GlobalizationPreference_defaultDirection;
private static final String LTR_DIR = WorkbenchMessages.GlobalizationPreference_ltrDirection;
private static final String AUTO_DIR = WorkbenchMessages.GlobalizationPreference_autoDirection;
private static final String RTL_DIR = WorkbenchMessages.GlobalizationPreference_rtlDirection;
@Override
protected Control createContents(Composite parent) {
PlatformUI.getWorkbench().getHelpSystem()
.setHelp(parent, IWorkbenchHelpContextIds.GLOBALIZATION_PREFERENCE_PAGE);
Composite composite = createComposite(parent);
createNlsExtensionsGroup(composite);
createSpace(composite);
createBidiPreferencesGroup(composite);
applyDialogFont(composite);
return composite;
}
/**
* Creates the composite which will contain all the preference controls for
* this page.
*
* @param parent
* the parent composite
* @return the composite for this page
*/
private static Composite createComposite(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout(2, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
composite.setLayout(layout);
composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL
| GridData.HORIZONTAL_ALIGN_FILL));
return composite;
}
private void createNlsExtensionsGroup(Composite parent) {
nlExtensionsField = new StringFieldEditor(IPreferenceConstants.NL_EXTENSIONS,
WorkbenchMessages.GlobalizationPreference_nlExtensions, parent);
nlExtensionsField.setPreferenceStore(getPreferenceStore());
nlExtensionsField.setPage(this);
nlExtensionsField.load();
}
private void createBidiPreferencesGroup(Composite composite) {
layoutDirectionCombo = addComboBox(composite,
WorkbenchMessages.GlobalizationPreference_layoutDirection, 0);
layoutDirectionCombo.setItems(new String[] { DEFAULT_DIR, LTR_DIR, RTL_DIR });
layoutDirectionCombo.select(getLayoutDirectionIndex(layoutDirection));
layoutDirectionCombo.addSelectionListener(widgetSelectedAdapter(
e -> layoutDirection = getLayoutDirectionInteger(layoutDirectionCombo.getSelectionIndex())));
createSpace(composite);
bidiSupportClickButton = new Button(composite, SWT.CHECK | SWT.LEFT);
bidiSupportClickButton.setLayoutData(GridDataFactory.swtDefaults().span(2, 1).create());
bidiSupportClickButton.setText(WorkbenchMessages.GlobalizationPreference_bidiSupport);
bidiSupportClickButton.setSelection(bidiSupport);
bidiSupportClickButton.addSelectionListener(widgetSelectedAdapter(e -> selectClickMode(bidiSupportClickButton.getSelection())));
textDirectionCombo = addComboBox(composite,
WorkbenchMessages.GlobalizationPreference_textDirection,
LayoutConstants.getIndent());
textDirectionCombo.setItems(new String[] { DEFAULT_DIR, LTR_DIR, AUTO_DIR, RTL_DIR });
textDirectionCombo.setEnabled(bidiSupport);
textDirectionCombo.select(getTextDirectionIndex(textDirection));
textDirectionCombo.addSelectionListener(widgetSelectedAdapter(e -> textDirection = getTextDirectionString(textDirectionCombo.getSelectionIndex())));
createSpace(composite);
Font font = composite.getFont();
Composite note = createNoteComposite(font, composite, WorkbenchMessages.Preference_note,
WorkbenchMessages.GlobalizationPreference_restartWidget);
note.setLayoutData(GridDataFactory.swtDefaults().span(2, 1).create());
}
private void selectClickMode(boolean singleClick) {
bidiSupport = singleClick;
textDirectionCombo.setEnabled(bidiSupport);
}
private int getTextDirectionIndex(String textDirection) {
int index;
if (textDirection.equals(BidiUtils.LEFT_TO_RIGHT)) {
index = textDirectionCombo.indexOf(LTR_DIR);
} else if (textDirection.equals(BidiUtils.RIGHT_TO_LEFT)) {
index = textDirectionCombo.indexOf(RTL_DIR);
} else if (textDirection.equals(BidiUtils.AUTO)) {
index = textDirectionCombo.indexOf(AUTO_DIR);
} else {
index = textDirectionCombo.indexOf(DEFAULT_DIR);
}
return index;
}
private String getTextDirectionString(int index) {
String textDir;
if (index == textDirectionCombo.indexOf(LTR_DIR)) {
textDir = BidiUtils.LEFT_TO_RIGHT;
} else if (index == textDirectionCombo.indexOf(AUTO_DIR)) {
textDir = BidiUtils.AUTO;
} else if (index == textDirectionCombo.indexOf(RTL_DIR)) {
textDir = BidiUtils.RIGHT_TO_LEFT;
} else {
textDir = ""; //$NON-NLS-1$
}
return textDir;
}
private int getLayoutDirectionIndex(int layoutDirection) {
int index;
if (layoutDirection == SWT.LEFT_TO_RIGHT) {
index = layoutDirectionCombo.indexOf(LTR_DIR);
} else if (layoutDirection == SWT.RIGHT_TO_LEFT) {
index = layoutDirectionCombo.indexOf(RTL_DIR);
} else {
index = layoutDirectionCombo.indexOf(DEFAULT_DIR);
}
return index;
}
private int getLayoutDirectionInteger(int index) {
int layoutDir;
if (index == layoutDirectionCombo.indexOf(LTR_DIR)) {
layoutDir = SWT.LEFT_TO_RIGHT;
} else if (index == layoutDirectionCombo.indexOf(RTL_DIR)) {
layoutDir = SWT.RIGHT_TO_LEFT;
} else {
layoutDir = SWT.NONE;
}
return layoutDir;
}
private static Combo addComboBox(Composite parent, String label, int indent) {
Label labelControl = new Label(parent, SWT.LEFT);
GridData gd = new GridData();
gd.horizontalIndent = indent;
labelControl.setLayoutData(gd);
labelControl.setText(label);
Combo comboBox = new Combo(parent, SWT.READ_ONLY);
return comboBox;
}
private static void createSpace(Composite parent) {
Label vfiller = new Label(parent, SWT.LEFT);
GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
gridData.horizontalSpan= 2;
GC gc = new GC(parent);
gridData.heightHint = Dialog.convertHeightInCharsToPixels(gc.getFontMetrics(), 1) / 2;
gc.dispose();
vfiller.setLayoutData(gridData);
}
@Override
protected IPreferenceStore doGetPreferenceStore() {
return WorkbenchPlugin.getDefault().getPreferenceStore();
}
/**
* @see IWorkbenchPreferencePage
*/
@Override
public void init(IWorkbench aWorkbench) {
IPreferenceStore store = getPreferenceStore();
layoutDirection = store.getInt(IPreferenceConstants.LAYOUT_DIRECTION);
bidiSupport = store.getBoolean(IPreferenceConstants.BIDI_SUPPORT);
textDirection = store.getString(IPreferenceConstants.TEXT_DIRECTION);
}
/**
* The default button has been pressed.
*/
@Override
protected void performDefaults() {
IPreferenceStore store = getPreferenceStore();
nlExtensionsField
.setStringValue(store.getDefaultString(IPreferenceConstants.NL_EXTENSIONS));
layoutDirection = store.getDefaultInt(IPreferenceConstants.LAYOUT_DIRECTION);
bidiSupport = store.getDefaultBoolean(IPreferenceConstants.BIDI_SUPPORT);
textDirection = store.getDefaultString(IPreferenceConstants.TEXT_DIRECTION);
layoutDirectionCombo.select(getLayoutDirectionIndex(layoutDirection));
bidiSupportClickButton.setSelection(bidiSupport);
textDirectionCombo.select(getTextDirectionIndex(textDirection));
textDirectionCombo.setEnabled(bidiSupport);
super.performDefaults();
}
/**
* The user has pressed Ok. Store/apply this page's values appropriately.
*/
@Override
public boolean performOk() {
IPreferenceStore store = getPreferenceStore();
store.setValue(IPreferenceConstants.NL_EXTENSIONS, nlExtensionsField.getStringValue());
store.setValue(IPreferenceConstants.LAYOUT_DIRECTION, layoutDirection);
store.setValue(IPreferenceConstants.BIDI_SUPPORT, bidiSupport);
store.setValue(IPreferenceConstants.TEXT_DIRECTION, textDirection);
Window.setDefaultOrientation(layoutDirection);
BidiUtils.setBidiSupport(bidiSupport);
BidiUtils.setTextDirection(textDirection.isEmpty() ? null : textDirection);
PrefUtil.savePrefs();
return true;
}
}