litesoft
@ 948
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// This Source Code is in the Public Domain per: http://unlicense.org package org.litesoft.GWT.client.widgets.nonpublic; import org.litesoft.commonfoundation.html.*; import com.google.gwt.user.client.*; import com.google.gwt.user.client.ui.*; /** * Derived from com.google.gwt.user.client.ui.TabBar * because they did not allow direct access to the underlying HorizontalPanel. * <p/> * A horizontal bar of folder-style tabs, most commonly used as part of a * {@link com.google.gwt.user.client.ui.TabPanel}. * <p/> * <img class='gallery' src='TabBar.png'/> * </p> * <h3>CSS Style Rules</h3> * <ul class='css'> * <li>.gwt-TabBar { the tab bar itself }</li> * <li>.gwt-TabBar .gwt-TabBarFirst { the left edge of the bar }</li> * <li>.gwt-TabBar .gwt-TabBarRest { the right edge of the bar }</li> * <li>.gwt-TabBar .gwt-TabBarItem { unselected tabs }</li> * <li>.gwt-TabBar .gwt-TabBarItem-selected { additional style for selected * tabs } </li> * </ul> * <p/> * </p> */ public class WidgetTabBar extends Composite implements SourcesTabEvents, ClickListener { private HorizontalPanel panel = new HorizontalPanel(); private Widget selectedTab; private TabListenerCollection tabListeners; /** * Creates an empty tab bar. */ public WidgetTabBar() { initWidget( panel ); sinkEvents( Event.ONCLICK ); //noinspection GWTStyleCheck setStyleName( "gwt-TabBar" ); panel.setVerticalAlignment( HasVerticalAlignment.ALIGN_BOTTOM ); HTML first = new HTML( HTMLConstants.NBSP, true ), rest = new HTML( HTMLConstants.NBSP, true ); //noinspection GWTStyleCheck first.setStyleName( "gwt-TabBarFirst" ); //noinspection GWTStyleCheck rest.setStyleName( "gwt-TabBarRest" ); // first.setHeight( "100%" ); // rest.setHeight( "100%" ); panel.add( first ); panel.add( rest ); // first.setHeight( "100%" ); panel.setCellHeight( first, "100%" ); panel.setCellWidth( rest, "100%" ); } /** * Adds a new tab with the specified text. * * @param text the new tab's text */ public void addTab( String text ) { insertTab( text, getTabCount() ); } /** * Adds a new tab with the specified text. * * @param text the new tab's text * @param asHTML <code>true</code> to treat the specified text as html */ public void addTab( String text, boolean asHTML ) { insertTab( text, asHTML, getTabCount() ); } @Override public void addTabListener( TabListener listener ) { if ( tabListeners == null ) { tabListeners = new TabListenerCollection(); } tabListeners.add( listener ); } /** * Gets the tab that is currently selected. * * @return the selected tab */ public int getSelectedTab() { if ( selectedTab == null ) { return -1; } return panel.getWidgetIndex( selectedTab ) - 1; } /** * Gets the number of tabs present. * * @return the tab count */ public int getTabCount() { return panel.getWidgetCount() - 2; } /** * Gets the specified tab's HTML. * * @param index the index of the tab whose HTML is to be retrieved * * @return the tab's HTML */ public String getTabHTML( int index ) { if ( index >= getTabCount() ) { return null; } Widget widget = panel.getWidget( index + 1 ); if ( widget instanceof HTML ) { return ((HTML) widget).getHTML(); } else { return ((Label) widget).getText(); } } public Widget getWidget( int pIndex ) { return panel.getWidget( pIndex + 1 ); } /** * Inserts a new tab at the specified index. * * @param text the new tab's text * @param asHTML <code>true</code> to treat the specified text as HTML * @param beforeIndex the index before which this tab will be inserted */ public void insertTab( String text, boolean asHTML, int beforeIndex ) { if ( (beforeIndex < 0) || (beforeIndex > getTabCount()) ) { throw new IndexOutOfBoundsException( String.valueOf( beforeIndex ) ); } Label item; if ( asHTML ) { item = new HTML( text ); } else { item = new Label( text ); } item.setWordWrap( false ); item.addClickListener( this ); //noinspection GWTStyleCheck item.setStyleName( "gwt-TabBarItem" ); item.addStyleName( "gwt-TabBarItem-NonError" ); panel.insert( item, beforeIndex + 1 ); } /** * Inserts a new tab at the specified index. * * @param text the new tab's text * @param beforeIndex the index before which this tab will be inserted */ public void insertTab( String text, int beforeIndex ) { insertTab( text, false, beforeIndex ); } @Override public void onClick( Widget sender ) { for ( int i = 1; i < panel.getWidgetCount() - 1; ++i ) { if ( panel.getWidget( i ) == sender ) { selectTab( i - 1 ); return; } } } /** * Removes the tab at the specified index. * * @param index the index of the tab to be removed */ public void removeTab( int index ) { checkTabIndex( index ); // (index + 1) to account for 'first' placeholder widget. Widget toRemove = panel.getWidget( index + 1 ); if ( toRemove == selectedTab ) { selectedTab = null; } panel.remove( toRemove ); } @Override public void removeTabListener( TabListener listener ) { if ( tabListeners != null ) { tabListeners.remove( listener ); } } /** * Programmatically selects the specified tab. Use index -1 to specify that no * tab should be selected. * * @param index the index of the tab to be selected. * * @return <code>true</code> if successful, <code>false</code> if the * change is denied by the {@link TabListener}. */ public boolean selectTab( int index ) { checkTabIndex( index ); if ( tabListeners != null ) { if ( !tabListeners.fireBeforeTabSelected( this, index ) ) { return false; } } // Check for -1. setSelectionStyle( selectedTab, false ); if ( index == -1 ) { selectedTab = null; return true; } selectedTab = panel.getWidget( index + 1 ); setSelectionStyle( selectedTab, true ); if ( tabListeners != null ) { tabListeners.fireTabSelected( this, index ); } return true; } private void checkTabIndex( int index ) { if ( (index < -1) || (index >= getTabCount()) ) { throw new IndexOutOfBoundsException( String.valueOf( index ) ); } } private void setSelectionStyle( Widget item, boolean selected ) { if ( item != null ) { if ( selected ) { //noinspection GWTStyleCheck item.addStyleName( "gwt-TabBarItem-selected" ); } else { //noinspection GWTStyleCheck item.removeStyleName( "gwt-TabBarItem-selected" ); } } } } |
Commits for litesoft/trunk/Java/GWT/Client/src/org/litesoft/GWT/client/widgets/nonpublic/WidgetTabBar.java
Revision | Author | Commited | Message |
---|---|---|---|
948 Diff | GeorgeS | Sat 07 Jun, 2014 23:42:39 +0000 | Jusefuls Formatter Updated to New Code Format |
947 Diff | GeorgeS | Fri 06 Jun, 2014 23:36:56 +0000 | Correct Spelling of package! |
942 Diff | GeorgeS | Mon 02 Jun, 2014 23:41:46 +0000 | Extracting commonfoundation |
712 Diff | GeorgeS | Sat 09 Jun, 2012 22:46:04 +0000 | Move PAV stuff into LiteSoft |
49 Diff | GeorgeS | Mon 12 Apr, 2010 02:59:10 +0000 | License Text |
23 Diff | GeorgeS | Wed 24 Feb, 2010 00:34:32 +0000 | |
2 | GeorgeS | Sun 07 Feb, 2010 12:50:58 +0000 |