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How to get curved (blue) tabs when running under e4? [message #1033936]

Thu, 04 April 2013 20:50

Phil Beauvoir is currently offline

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I'm trying to run my e3 based RCP app under Eclipse 4.3 M6 (therefore it's using the compatibility layer). It runs, though the problem is that all View parts and Editor parts have square white tabs rather than the usual curved tabs that are blue when they have the focus.

Thus, this doesn't work either:

PlatformUI.getPreferenceStore().setValue(IWorkbenchPreferenceConstants.SHOW_TRADITIONAL_STYLE_TABS, false);

Am I missing a step needed for e4 compatibility?

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Re: How to get curved (blue) tabs when running under e4? [message #1033947 is a reply to message #1033936]

Thu, 04 April 2013 21:09

Thomas Schindl is currently offline

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Tab-Rendering is defined via CSS and not through the old preferences.

Tom

On 04.04.13 22:50, Phil Beauvoir wrote:
> I'm trying to run my e3 based RCP app under Eclipse 4.3 M6 (therefore
> it's using the compatibility layer). It runs, though the problem is that
> all View parts and Editor parts have square white tabs rather than the
> usual curved tabs that are blue when they have the focus.
>
> Thus, this doesn't work either:
>
> PlatformUI.getPreferenceStore().setValue(IWorkbenchPreferenceConstants.SHOW_TRADITIONAL_STYLE_TABS,
> false);
>
> Am I missing a step needed for e4 compatibility?

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Re: How to get curved (blue) tabs when running under e4? [message #1033950 is a reply to message #1033947]

Thu, 04 April 2013 21:13

Phil Beauvoir is currently offline

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OK, so is there any information on how I would do the tab rendering via CSS? BTW - I though the compatibility layer might take care of this?

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Re: How to get curved (blue) tabs when running under e4? [message #1033955 is a reply to message #1033950]

Thu, 04 April 2013 21:22

Thomas Schindl is currently offline

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No - in reality it was the 3.x presentation which took care of the
rendering and we made clear from the start that the presentation API
will NOT be supported in 4.x!

Tom

On 04.04.13 23:13, Phil Beauvoir wrote:
> OK, so is there any information on how I would do the tab rendering via
> CSS? BTW - I though the compatibility layer might take care of this?

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Re: How to get curved (blue) tabs when running under e4? [message #1033956 is a reply to message #1033955]

Thu, 04 April 2013 21:24

Thomas Schindl is currently offline

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http://wiki.eclipse.org/E4/CSS/SWT_Mapping

Tom

On 04.04.13 23:22, Tom Schindl wrote:
> No - in reality it was the 3.x presentation which took care of the
> rendering and we made clear from the start that the presentation API
> will NOT be supported in 4.x!
>
> Tom
>
> On 04.04.13 23:13, Phil Beauvoir wrote:
>> OK, so is there any information on how I would do the tab rendering via
>> CSS? BTW - I though the compatibility layer might take care of this?
>

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Re: How to get curved (blue) tabs when running under e4? [message #1033963 is a reply to message #1033956]

Thu, 04 April 2013 21:33

Phil Beauvoir is currently offline

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I have no idea what any of what that mapping information means or what to do with it. But thanks anyway.

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Re: How to get curved (blue) tabs when running under e4? [message #1034006 is a reply to message #1033963]

Thu, 04 April 2013 22:54

Thomas Schindl is currently offline

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IIRC it is the simple attribute, if set to false you get curves.

Tom

On 04.04.13 23:33, Phil Beauvoir wrote:
> I have no idea what any of what that mapping information means or what
> to do with it. But thanks anyway.

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Re: How to get curved (blue) tabs when running under e4? [message #1034243 is a reply to message #1034006]

Fri, 05 April 2013 07:35

Christoph Keimel is currently offline

Christoph Keimel

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Hi Phil,

you need to set

.MPartStack {
  swt-simple: false;
}

in your CSS.

Hope that helps.

Christoph

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Re: How to get curved (blue) tabs when running under e4? [message #1034273 is a reply to message #1034243]

Fri, 05 April 2013 08:26

Phil Beauvoir is currently offline

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Thanks, but my app is a RCP app based on Eclipse 3 and so I have no CSS files or no code to read in CSS files. Is there a special location to create a CSS file and some command or extension to read it in?

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Re: How to get curved (blue) tabs when running under e4? [message #1034649 is a reply to message #1033936]

Fri, 05 April 2013 18:12

Phil Beauvoir is currently offline

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In the spirit of Eclipse development I spent many hours of trial and error and head-scratching and somehow figured it out by reverse engineering Eclipse 4 itself (the clues are in the org.eclipse.platform plug-in).

Here's what I did:

1. Copy over the "css" folder from the org.eclipse.platform plug-in to a "css" folder in my main application plug-in.

2. Copy over the "images" folder from the org.eclipse.platform plug-in to a "css/images" folder in my main application plug-in.

3. Add this required bundle to the RCP app's MANIFEST.MF:

   org.eclipse.e4.ui.css.swt.theme

4. Add the following to my plugin.xml file in the "org.eclipse.core.runtime.products" extension point to set the default theme:

     <property
           name="cssTheme"
           value="org.eclipse.e4.ui.css.theme.e4_default">
     </property>
     <property
           name="applicationCSSResources"
           value="platform:/plugin/uk.ac.bolton.archimate.editor/css/images/">
     </property>

5. Add following to my plugin.xml file to add the themes:

	<extension
   		point="org.eclipse.e4.ui.css.swt.theme">
	  	<theme
			basestylesheeturi="css/e4_default.css"
			id="org.eclipse.e4.ui.css.theme.e4_default.noos"
			label="Default Theme">
			</theme>
		<theme
			basestylesheeturi="css/e4_classic_winxp.css"
			id="org.eclipse.e4.ui.css.theme.e4_classic"
			label="Classic">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_gtk.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="GTK"
			os="linux">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_mac.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="Mac"
			os="macosx">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_win7.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="Windows 7"
			os="win32"
			os_version="6.1">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_winxp_blu.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="Windows XP Blue"
			os="win32">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_winxp_olv.css"
			id="org.eclipse.e4.ui.css.theme.e4_default.xpolive"
			label="Windows XP Olive"
			os="win32">
		</theme>
		<theme
			basestylesheeturi="css/e4_classic_win7.css"
			id="org.eclipse.e4.ui.css.theme.e4_classic"
			label="Windows 7 Classic"
			os="win32"
			os_version="6.1">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_gtk.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="Solaris"
			os="solaris">
		</theme>
		<theme
			basestylesheeturi="css/e4_default_gtk.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="AIX"
			os="aix">
		</theme>
		<theme
			basestylesheeturi="css/e4_classic_winxp.css"
			id="org.eclipse.e4.ui.css.theme.e4_default"
			label="HPUX"
			os="hpux">
		</theme>
	</extension>

To change the theme programmatically I use this:

    private IThemeEngine getThemeEngine() {
    	Bundle bundle = FrameworkUtil.getBundle(ArchimateEditorPlugin.class);
        BundleContext context = bundle.getBundleContext();
        ServiceReference<IThemeManager> ref = context.getServiceReference(IThemeManager.class);
        IThemeManager themeManager = context.getService(ref);
        return themeManager.getEngineForDisplay(Display.getCurrent());
    }

To allow the user change the theme I call:

	List<ITheme> themes = getThemeEngine().getThemes();

Then add these to a Combo box in my Preferences dialog.

Then to set the theme:

    ITheme theme = (ITheme)((IStructuredSelection)fThemeComboViewer.getSelection()).getFirstElement();
    getThemeEngine().setTheme(theme, true);

Hope this helps some lost soul like myself.

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Re: How to get curved (blue) tabs when running under e4? [message #1035222 is a reply to message #1034649]

Sat, 06 April 2013 14:29

Phil Beauvoir is currently offline

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Thinking further, if the "compatibility layer" in e4 were to truly offer 100% backward compatibility for e3 based RCP applications (and please remember, I'm not talking about plug-ins, I'm talking standalone RCP apps) then I would have thought a default e3 theme would be provided in e4? Or at the very least this could be documented so that developers would know what to do, rather than having to struggle the way I did.

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Re: How to get curved (blue) tabs when running under e4? [message #1133082 is a reply to message #1035222]

Fri, 11 October 2013 15:48

n m is currently offline

n m

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I followed your description on adding the themes and it seems to work fine when I launch from Eclipse but it doesn't work when I export the product. I checked the build.properties contains my css and images folder.

Can anyone help?

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Re: How to get curved (blue) tabs when running under e4? [message #1137411 is a reply to message #1133082]

Mon, 14 October 2013 13:22

n m is currently offline

n m

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I was able to fix it by adding the following to the basesheetstyleuri values

platform:/plugin/pluginname/css/e4_default.css

OR by making the plugin into a directory by adding the following to the MANIFEST.MF]

Eclipse-BundleShape: dir

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Re: How to get curved (blue) tabs when running under e4? [message #1604888 is a reply to message #1034649]

Sat, 07 February 2015 05:08

Al B is currently offline

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Messages: 47
Registered: June 2012

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When I try Phil's suggestion on, I get this error:

java.lang.IllegalArgumentException: A theme with the id 'org.eclipse.e4.ui.css.theme.e4_default' is already registered

PS: I'm using Kepler as the IDE for my RCP application.

[Updated on: Sat, 07 February 2015 05:09]

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Re: How to get curved (blue) tabs when running under e4? [message #1766869 is a reply to message #1033936]

Wed, 28 June 2017 11:56

Peter Pinnau is currently offline

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Messages: 10
Registered: October 2015

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I managed to enable one of the default themes in my Eclipse 3.X application in compatibility mode with the -cssTheme command line switch.

Here is an example:

-nl ${target.nl} -consoleLog -cssTheme org.eclipse.e4.ui.css.theme.e4_default

The bundle 'org.eclipse.ui.themes' and dependend bundles have to be added to the plugin.

Valid options for cssTheme are:

org.eclipse.e4.ui.css.theme.e4_classic
org.eclipse.e4.ui.css.theme.e4_default
org.eclipse.e4.ui.css.theme.e4_dark

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Re: How to get curved (blue) tabs when running under e4? [message #1774159 is a reply to message #1766869]

Wed, 11 October 2017 06:57

Santhosh Kumar is currently offline

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Registered: March 2011

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Thank you Phil Beauvoir, it worked perfectly.

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