Eclipse 4 Plug-in RCP supports CSS switching

Eclipe more than 4 plug-in support for CSS theme switching features

Plugin.xml extension points org.eclipse.core.runtime.products, org.eclipse.e4.ui.css.swt.theme

<extension id= "Product" point= "org.eclipse.core.runtime.products" > <product appli               cation= "org.eclipse.e4.ui.examples.css.rcp.application" name= "CSS Mail Example" > <property               Name= "Abouttext" value= "CSS RCP Mail Template" > </property> <property                Name= "Windowimages" value= "Icons/sample2.gif" > </property> <property Name= "Aboutimage" value= "Icons/alt_about.gif" > </property> <prope Rty name= "AppName" value= "CSS Mail Example" > </property> <!--start specifying css--> <span style= "color: #ff0000;" ><strong><!--<property name= "applicationcss" value= "platform:/plugin/org.eclipse.e4.u I.examples.css.rcp/css/colorful.css "> </property>--></strong></span>      </product> </extension> <extension point= "Org.eclipse.e4.ui.css.swt.theme" > <! --basestylesheeturi indicates the location of the bound CSS--<theme basestylesheeturi= "<strong><span style=" color: #ff 0000; " >css/default.css</span></strong> "id=" ORG.ECLIPSE.E4.UI.EXAMPLES.CSS.RCP "label=" rcp Example Theme "> </theme> <theme basestylesheeturi=" <span style= "color: #ff0000;"            ><strong>css/colorful.css</strong></span> "id=" org.eclipse.e4.ui.examples.css.colorful " Label= "Colorful Example" > </theme> </extension>

The Themehelperl class is used to generate the theme engine (for switching between different CSS)

Import Org.eclipse.core.runtime.platform;import Org.eclipse.e4.ui.css.swt.theme.ithemeengine;import Org.eclipse.e4.ui.css.swt.theme.ithememanager;import Org.eclipse.e4.ui.examples.css.rcp.activator;import Org.eclipse.swt.widgets.display;import Org.eclipse.ui.platformui;import Org.osgi.framework.bundle;import Org.osgi.framework.bundlecontext;import org.osgi.framework.servicereference;/** * Provides access to theme engine * @author Administrator * * /@SuppressWarnings ("Restriction") public class Themehelper {private static Ithemeengine engine = Null;private static Bundle bundle = Platform.getbundle (activator.plugin_id);p ublic static Ithemeengine getengine () {if (engine = = null) {Engi NE = Getthemeengine ();} return engine;} private static Ithemeengine Getthemeengine () {Bundlecontext context = Bundle.getbundlecontext (); ServiceReference ref = Context.getservicereference (IThemeManager.class.getName ()); Ithememanager manager = ( Ithememanager) Context.getservice (ref), Return Manager.getenginefordisplay (platformui.getworkbeNch (). Getactiveworkbenchwindow () = = null? Display.getcurrent (): Platformui.getworkbench (). Getactiveworkbenchwindow (). Getshell (). Getdisplay ());}}

Actions for switching themes

Import Org.eclipse.core.commands.abstracthandler;import Org.eclipse.core.commands.executionevent;import Org.eclipse.core.commands.executionexception;import org.eclipse.e4.ui.examples.css.rcp.theme.themehelper;/** * Toggle Theme Implementation Class * @author Administrator * */public class Switchtheme extends Abstracthandler {private Boolean reset = False;priva Te final static String User_css_default = "ORG.ECLIPSE.E4.UI.EXAMPLES.CSS.RCP"; topic idprivate final static in//plugin.xml String user_css_colorful = "org.eclipse.e4.ui.examples.css.colorful";p ublic Object Execute (executionevent event) Throws Executionexception {String Themeid = "", if (reset) {//Toggle functionality of the menu Itemthemeid = User_css_def Ault;} else {Themeid = user_css_colorful;} reset =!reset; Themehelper.getengine (). SetTheme (Themeid, true); return null;}}

Command set in Plugin.xml

<extension point= "org.eclipse.ui.commands" ><!--User Add menu item to the appropriate location--<command Defau Lthandler= "Org.eclipse.e4.ui.examples.css.rcp.handler.SwitchTheme" id= "ORG.ECLIPSE.E4.UI.EXAMPLES.CSS.RCP.SWITC Htheme "name=" switch Theme ><!--switch Themes-</command> </extension><extension&nbs P        point= "Org.eclipse.ui.menus" >      <menuContribution            allpopups= "false"             locationuri= "Menu:o Rg.eclipse.ui.main.menu >         <menu              &N Bsp;label= "Styling" >            <command            &NBS P     commandid= "Org.eclipse.e4.ui.examples.css.rcp.switchtheme"                   label= "Switch styling"   &nbsp               style= "push" >            &LT;/COMMAND&GT ;         </menu>      </menuContribution>   </ Extension>

Bind the command to the menu bar

<extension         point= "Org.eclipse.ui.menus" >      <menucontribution            allpopups= "false"            locationuri= "Menu:org.eclipse.ui.main.menu" >         <menu               label= "Styling" >            <command                  Commandid= "Org.eclipse.e4.ui.examples.css.rcp.switchtheme"                  label= "Switch styling"                  style= "Push" >            </command>         </menu>      </menuContribution>   </extension>

Applicationworkbenchadvisor You can specify a topic from the beginning of the code

public void Initialize (Iworkbenchconfigurer configurer) {super.initialize (configurer);/** set default theme style for system */bundle B = Frameworkutil.getbundle (GetClass ()); Bundlecontext context = B.getbundlecontext (); ServiceReference serviceref = context.getservicereference (IThemeManager.class.getName ()); Ithememanager Thememanager = (Ithememanager) context.getservice (SERVICEREF); final Ithemeengine engine = Thememanager.getenginefordisplay (Display.getcurrent ()); Engine.settheme ("ORG.ECLIPSE.E4.UI.EXAMPLES.CSS.RCP", true); if (serviceref! = null) {serviceref = null;} if (Thememanager! = null) {Thememanager = null;}}

CSS style Colorful.css

Ctabitem, Label, Tree, Text {font-family: "Arial";} Shell {font-size:12;} Ctabitem, ToolBar, Button, Cbanner, CoolBar {font-size:9;background-color:green;} Ctabfolder, Ctabitem {    background-color:red;} ctabitem:selected {    background-color:blue;} Text {font-size:11;color: #666666; background-color:red;} #navigation {font-size:8;color:orange;background-color:blue;}. Messagebanner {    background-color:yellow;}. Messagebanner Composite, Label, Link {    background-color:pink;}. Messagesender {color: #3e9cfa; font-size:11;}. messagedate {color: #808080; font-size:9;}. messagesubjectunread {    font-size:14;font-style:italic;    font-weight:bold;color:red;}. messagesubjectread {    font-size:12;font-style:normal;    Font-weight:normal;color:green;}

Project Download: http://download.csdn.net/detail/luoww1/7425369