Home » Modeling » TMF (Xtext) » help - Don't get how to extend Syntax coloring
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| Re: help - Don't get how to extend Syntax coloring [message #494859 is a reply to message #494840] |
Mon, 02 November 2009 23:02   |
 Henrik Lindberg
Messages: 2509
Registered: July 2009 |
Senior Member |
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By experimenting, I think I can answer my own question.
Basically, I wrote this:
public class BeeLangTokenToAttributeIdMapper extends
DefaultAntlrTokenToAttributeIdMapper {
@Override
protected String calculateId(String tokenName, int tokenType) {
if("RULE_DOCUMENTATION".equals(tokenName)) {
return DefaultLexicalHighlightingConfiguration.STRING_ID;
}
return super.calculateId(tokenName, tokenType);
}
}
and registered this class like this:
public class BeeLangUiModule extends
org.eclipse.b3.AbstractBeeLangUiModule {
public Class<? extends AbstractAntlrTokenToAttributeIdMapper>
bindTokenToAttributeIdMapper() {
return BeeLangTokenToAttributeIdMapper.class;
}
}
What I found confusing is that there is no method called
"bindTokenToAttributeIdMapper" on the
org.eclipse.b3.AbstractBeeLangUiModule.
Are there many other things not found as bindXXX methods on the
generated superclass that could be registered like this? How can one
find out what they are?
Regards
- henrik
On 11/2/09 10:42 PM, Henrik Lindberg wrote:
> Hi,
> I have a hard time figuring out how to add more syntax coloring. I
> understand the difference between lexical and model based highlighting,
> and I understand the code that is in the documentation (well, enough to
> write something that would perform the highlighting I want).
>
> But how to "register" what needs to be registered baffles me. The
> documentation does not mention this at all - simply that something
> should be registered... but not where or how this is done.
>
> I am happy to describe how it is done if I am given some pointers in the
> right direction...
>
> I am currently looking at the generated MyLangUiModule - but I am not
> sure which of the bind methods to override... or, am I in the wrong
> place...
>
> confused, but otherwise an happy xtext user... :)
> Regards
> - henrik
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| Re: help - Don't get how to extend Syntax coloring [message #494993 is a reply to message #494990] |
Tue, 03 November 2009 13:47 |
Henrik Lindberg
Messages: 2509
Registered: July 2009 |
Senior Member |
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This is what I implemented:
private void highlightObject(EObject semantic, String highlightID,
IHighlightedPositionAcceptor acceptor) {
NodeAdapter adapter = NodeUtil.getNodeAdapter(semantic);
if(adapter == null) {
// TODO: WARNING - Could not find node
return;
}
CompositeNode node = adapter.getParserNode();
if(node == null) {
// TODO: WARNING - Could not find node
return;
}
acceptor.addPosition(node.getOffset(), node.getLength(), highlightID);
}
This works fine, except that recoloring is a bit too lazy :). If an
element is inserted into the highlighted element it gets its coloring
from the lexical coloring, the semantic coloring is not re-triggered. I
have to delete/insert the element, or reopen the editor to trigger it.
Is this a bug, or am I required to find all the leafs under the object
and color them individually?
Regards
- henrik
On 11/3/09 2:35 PM, Henrik Lindberg wrote:
> Thanks Alex,
>
> On 11/3/09 8:28 AM, Alexander Nittka wrote:
> > regarding semantic highlighting you may want to have a look at this blog
> > post which contains some code snippets that may serve as starter (it
> > misses some null-checks though).
> >
> > http://blogs.itemis.de/stundzig/archives/467
>
> the blog post was very helpful. I managed to get the highlighting
> working by traversing the ecore tree, and then finding the corresponding
> node. I implemented a method similar to highlightFirstFeature (shown in
> the blog post), but that colors an entire composite node (as that was I
> needed in this case).
>
>> Binding: The name of the bind-Methods does not matter (it has to start
>> with bind). Sometimes you want to override existing bind-methods
>> (exchanging an implementation bound there) in other cases you introduce
>> new ones (e.g. if you want to modify the XtextEditor itself, you can
>> bind an implementation extending it).
>
> ok, that makes sense, but how do I know what meaningful things I can
> extend the XtextEditor with? I mean, if I bind an implementation of
> IHamburgerBar there is nothing that would know how to use it to order a
> burger :).
>
> - henrik
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| Re: help - Don't get how to extend Syntax coloring [message #495000 is a reply to message #494840] |
Tue, 03 November 2009 14:01 |
Tim 
Messages: 21
Registered: August 2009 |
Junior Member |
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Hi Hendrik,
I'm also trying to get the syntax coloring to work. My thought was easy, implement a copy of the default hyghlightingconfiguration and change some colors.
Original file: http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.tmf/org .eclipse.xtext/plugins/org.eclipse.xtext.ui.common/src/org/e clipse/xtext/ui/common/editor/syntaxcoloring/DefaultLexicalH ighlightingConfiguration.java?root=Modeling_Project&view =co
My implementation below, but it seems like it is not implemented at all???? No colors have changed after I generate everything with the MWE Workflow. How did you manage to get it to work?
../ide/v07/APAPLUiModule.java
package nl.uu.cs.apapl.ide.v07;
public class APAPLUiModule extends nl.uu.cs.apapl.ide.v07.AbstractAPAPLUiModule {
public Class bindSemanticConfig() {
return MySemanticHighlightingConfiguration.class;
}
}
../ide/v07/MySemanticHighlightingConfiguration.java
package nl.uu.cs.apapl.ide.v07;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.xtext.ui.common.editor.syntaxcoloring.*;
import org.eclipse.xtext.ui.core.editor.utils.TextStyle;
public class MySemanticHighlightingConfiguration implements ILexicalHighlightingConfiguration {
public static final String KEYWORD_ID = "keyword";
public static final String PUNCTUATION_ID = "punctuation";
public static final String COMMENT_ID = "comment";
public static final String STRING_ID = "string";
public static final String NUMBER_ID = "number";
public static final String DEFAULT_ID = "default";
public static final String INVALID_TOKEN_ID = "error";
public void configure(IHighlightingConfigurationAcceptor acceptor) {
acceptor.acceptDefaultHighlighting(KEYWORD_ID, "Keyword", keywordTextStyle());
acceptor.acceptDefaultHighlighting(PUNCTUATION_ID, "Punctuation character", punctuationTextStyle());
acceptor.acceptDefaultHighlighting(COMMENT_ID, "Comment", commentTextStyle());
acceptor.acceptDefaultHighlighting(STRING_ID, "String", stringTextStyle());
acceptor.acceptDefaultHighlighting(NUMBER_ID, "Number", numberTextStyle());
acceptor.acceptDefaultHighlighting(DEFAULT_ID, "Default", defaultTextStyle());
acceptor.acceptDefaultHighlighting(INVALID_TOKEN_ID, "Invalid Symbol", errorTextStyle());
}
public TextStyle defaultTextStyle() {
TextStyle textStyle = new TextStyle();
textStyle.setBackgroundColor(new RGB(255, 255, 255));
textStyle.setColor(new RGB(100, 100, 50));
return textStyle;
}
public TextStyle keywordTextStyle() {
TextStyle textStyle = defaultTextStyle().copy();
textStyle.setColor(new RGB(127, 0, 85));
textStyle.setStyle(SWT.BOLD);
return textStyle;
}
// all the text styles here..............
}[Updated on: Tue, 03 November 2009 14:02] Report message to a moderator |
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| Re: help - Don't get how to extend Syntax coloring [message #495045 is a reply to message #495000] |
Tue, 03 November 2009 16:01 |
Henrik Lindberg
Messages: 2509
Registered: July 2009 |
Senior Member |
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You need to register things in the UI "module".
Here are the things I have registered:
public class BeeLangUiModule extends
org.eclipse.b3.AbstractBeeLangUiModule {
public Class<? extends AbstractAntlrTokenToAttributeIdMapper>
bindTokenToAttributeIdMapper() {
return BeeLangTokenToAttributeIdMapper.class;
}
public Class<? extends ILexicalHighlightingConfiguration>
bindILexicalHighlightingConfiguration() {
return BeeLangLexicalHighlightConfiguration.class;
}
public Class<? extends ISemanticHighlightingConfiguration>
bindISemanticHighlightingConfiguration() {
return BeeLangSemanticHighligtConfiuration.class;
}
public Class<? extends ISemanticHighlightingCalculator>
bindISemanticHighlightingCalculator() {
return BeeLangSemanticHighlightingCalculator.class;
}
}
Do something comparable...
Regards
- henrik
On 11/3/09 3:01 PM, Tim wrote:
> Hi Hendrik,
>
> I'm also trying to get the syntax coloring to work. My thought was easy,
> implement a copy of the default hyghlightingconfiguration and change
> some colors.
>
> Original file:
> http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.tmf/org .eclipse.xtext/plugins/org.eclipse.xtext.ui.common/src/org/e clipse/xtext/ui/common/editor/syntaxcoloring/DefaultLexicalH ighlightingConfiguration.java?root=Modeling_Project&view =co
>
>
> My implementation below, but it seems like it is not implemented at
> all???? No colors have changed after I generate everything with the MWE
> Workflow. How did you manage to get it to work?
>
> ./ide/v07/APAPLUiModule.java
> public class APAPLUiModule extends
> nl.uu.cs.apapl.ide.v07.AbstractAPAPLUiModule {
> public Class bindSemanticConfig() {
> return MySemanticHighlightingConfiguration.class;
> }
> }
> ./ide/v07/MySemanticHighlightingConfiguration.java
> package nl.uu.cs.apapl.ide.v07;
>
> import org.eclipse.swt.SWT;
> import org.eclipse.swt.graphics.RGB;
> import org.eclipse.xtext.ui.common.editor.syntaxcoloring.*;
> import org.eclipse.xtext.ui.core.editor.utils.TextStyle;
>
> public class MySemanticHighlightingConfiguration implements
> ILexicalHighlightingConfiguration {
>
> public static final String KEYWORD_ID = "keyword";
> public static final String PUNCTUATION_ID = "punctuation";
> public static final String COMMENT_ID = "comment";
> public static final String STRING_ID = "string";
> public static final String NUMBER_ID = "number";
> public static final String DEFAULT_ID = "default";
> public static final String INVALID_TOKEN_ID = "error";
>
> public void configure(IHighlightingConfigurationAcceptor acceptor) {
> acceptor.acceptDefaultHighlighting(KEYWORD_ID, "Keyword",
> keywordTextStyle());
> acceptor.acceptDefaultHighlighting(PUNCTUATION_ID, "Punctuation
> character", punctuationTextStyle());
> acceptor.acceptDefaultHighlighting(COMMENT_ID, "Comment",
> commentTextStyle());
> acceptor.acceptDefaultHighlighting(STRING_ID, "String", stringTextStyle());
> acceptor.acceptDefaultHighlighting(NUMBER_ID, "Number", numberTextStyle());
> acceptor.acceptDefaultHighlighting(DEFAULT_ID, "Default",
> defaultTextStyle());
> acceptor.acceptDefaultHighlighting(INVALID_TOKEN_ID, "Invalid Symbol",
> errorTextStyle());
> }
>
> public TextStyle defaultTextStyle() {
> TextStyle textStyle = new TextStyle();
> textStyle.setBackgroundColor(new RGB(255, 255, 255));
> textStyle.setColor(new RGB(100, 100, 50));
> return textStyle;
> }
>
> public TextStyle keywordTextStyle() {
> TextStyle textStyle = defaultTextStyle().copy();
> textStyle.setColor(new RGB(127, 0, 85));
> textStyle.setStyle(SWT.BOLD);
> return textStyle;
> }
>
> // all the text styles here..............
>
> }
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