/*******************************************************************************
* Copyright (c) 2004, 2007 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
*******************************************************************************/
package org.eclipse.ui.internal.presentations.r33;
import org.eclipse.jface.resource.FontRegistry;
import org.eclipse.jface.util.Geometry;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.IWorkbenchThemeConstants;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.presentations.util.PartInfo;
import org.eclipse.ui.internal.presentations.util.WidgetTabItem;
import org.eclipse.ui.internal.util.Util;
import com.ibm.icu.text.MessageFormat;
/**
* @since 3.1
*/
public class DefaultTabItem extends WidgetTabItem {
public static String DIRTY_PREFIX = "*"; //$NON-NLS-1$
private boolean busy = false;
private boolean bold = false;
private Font lastFont = null;
private String shortName = Util.ZERO_LENGTH_STRING;
private String longName = Util.ZERO_LENGTH_STRING;
public DefaultTabItem(CTabFolder parent, int index, int flags) {
super(getTab(parent, index, flags));
updateFont();
}
/**
* Get a new tab for the receiver.
*
* @return CTabItem
*/
private static CTabItem getTab(CTabFolder parent, int index, int flags) {
return new CTabItem(parent, flags, index);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.internal.presentations.util.AbstractTabItem#getBounds()
*/
public Rectangle getBounds() {
return Geometry.toDisplay(getItem().getParent(), getItem().getBounds());
}
public CTabItem getItem() {
return (CTabItem) getWidget();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.internal.presentations.util.AbstractTabItem#isShowing()
*/
public boolean isShowing() {
return getItem().isShowing();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.internal.presentations.util.AbstractTabItem#setInfo(org.eclipse.ui.internal.presentations.util.PartInfo)
*/
public void setInfo(PartInfo info) {
CTabItem tabItem = getItem();
shortName = computeShortName(info);
longName = computeLongName(info);
updateTabText();
if (tabItem.getImage() != info.image) {
tabItem.setImage(info.image);
}
String toolTipText = info.toolTip;
if (toolTipText.equals(Util.ZERO_LENGTH_STRING)) {
toolTipText = null;
}
if (!Util.equals(toolTipText, tabItem.getToolTipText())) {
tabItem.setToolTipText(toolTipText);
}
}
public void updateTabText() {
CTabItem tabItem = getItem();
String newName = tabItem.getParent().getSingle() ? longName : shortName;
newName = escapeAmpersands(newName);
if (!Util.equals(newName, tabItem.getText())) {
tabItem.setText(newName);
}
}
/**
* Escapes all the ampersands in the given string such that they can be
* displayed verbatim in an SWT label rather than treated as accelerators.
*
* @since 3.1
*
* @return a string where all ampersands are escaped
*/
public static String escapeAmpersands(String input) {
StringBuffer title = new StringBuffer(input.length());
for (int i = 0; i < input.length(); i++) {
char character = input.charAt(i);
title.append(character);
if (character == '&') {
title.append(character); // escape ampersand
}
}
return title.toString();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.internal.presentations.util.AbstractTabItem#setBold(boolean)
*/
public void setBold(boolean bold) {
this.bold = bold;
super.setBold(bold);
updateFont();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.internal.presentations.util.AbstractTabItem#setBusy(boolean)
*/
public void setBusy(boolean busy) {
this.busy = busy;
super.setBusy(busy);
updateFont();
}
private void updateFont() {
CTabItem tabItem = getItem();
// Set the font if necessary
FontRegistry registry = PlatformUI.getWorkbench().getThemeManager()
.getCurrentTheme().getFontRegistry();
// Determine the parent font. We will set the tab's font
Font targetFont = null;
if (busy) {
targetFont = registry
.getItalic(IWorkbenchThemeConstants.TAB_TEXT_FONT);
} else {
if (bold) {
targetFont = registry
.getBold(IWorkbenchThemeConstants.TAB_TEXT_FONT);
}
}
if (lastFont != targetFont) {
tabItem.setFont(targetFont);
lastFont = targetFont;
}
}
private static String computeShortName(PartInfo info) {
String text = info.name;
if (info.dirty) {
text = DIRTY_PREFIX + text;
}
return text;
}
private static String computeLongName(PartInfo info) {
String text = info.name;
String contentDescription = info.contentDescription;
if (contentDescription.equals("")) { //$NON-NLS-1$
String titleTooltip = info.toolTip.trim();
if (titleTooltip.endsWith(info.name)) {
titleTooltip = titleTooltip.substring(0,
titleTooltip.lastIndexOf(info.name)).trim();
}
if (titleTooltip.endsWith("\\")) { //$NON-NLS-1$
titleTooltip = titleTooltip.substring(0,
titleTooltip.lastIndexOf("\\")).trim(); //$NON-NLS-1$
}
if (titleTooltip.endsWith("/")) { //$NON-NLS-1$
titleTooltip = titleTooltip.substring(0,
titleTooltip.lastIndexOf("/")).trim(); //$NON-NLS-1$
}
contentDescription = titleTooltip;
}
if (!contentDescription.equals("")) { //$NON-NLS-1$
text = MessageFormat.format(
WorkbenchMessages.EditorPart_AutoTitleFormat, new String[] {
text, contentDescription });
}
if (info.dirty) {
text = DIRTY_PREFIX + text;
}
return text;
}
}