add image hover

nittka · Aug 29, 2018 · 269c292 · 269c292
1 parent 309b5f7
commit 269c292
Show file tree

Hide file tree

Showing 4 changed files with 77 additions and 0 deletions.
diff --git a/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/JtagFileURIs.java b/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/JtagFileURIs.java
@@ -1,7 +1,11 @@
 package de.nittka.tooling.jtag.ui;
 
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.IPath;
 import org.eclipse.emf.common.util.URI;
 
+import de.nittka.tooling.jtag.jtag.File;
 import de.nittka.tooling.jtag.jtag.FileName;
 
 public class JtagFileURIs {
@@ -15,6 +19,17 @@ public static URI getReferencedResourceURI(FileName file){
 		}
 	}
 
+	public static String getImageLocation(File file){
+		IResource wsFile = ResourcesPlugin.getWorkspace().getRoot().findMember(file.eResource().getURI().toPlatformString(true));
+		if(wsFile.exists()){
+			FileName name = file.getFileName();
+			IPath folder = wsFile.getLocation().removeLastSegments(1);
+			IPath fileLocation = folder.append(name.getFileName()).addFileExtension(name.getExtension());
+			return fileLocation.toString();
+		}
+		return null;
+	}
+
 //	public static IFile getJtagFile(IFile file){
 //		if("jtag".equals(file.getFileExtension())){
 //			throw new IllegalArgumentException(file+" is already an Jtag file");

diff --git a/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/JtagUiModule.java b/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/JtagUiModule.java
@@ -7,8 +7,12 @@
 import org.eclipse.xtext.resource.ILocationInFileProvider;
 import org.eclipse.xtext.ui.editor.XtextEditor;
 import org.eclipse.xtext.ui.editor.findrefs.FindReferencesHandler;
+import org.eclipse.xtext.ui.editor.hover.html.DefaultEObjectHoverProvider;
+import org.eclipse.xtext.ui.editor.hover.html.IEObjectHoverDocumentationProvider;
 import org.eclipse.xtext.ui.editor.hyperlinking.IHyperlinkHelper;
 
+import de.nittka.tooling.jtag.ui.hover.JTagEObjectHover;
+import de.nittka.tooling.jtag.ui.hover.JtagHoverProvider;
 import de.nittka.tooling.jtag.ui.linking.JtagFindReferencesHandler;
 import de.nittka.tooling.jtag.ui.linking.JtagHyperlinkHelper;
 import de.nittka.tooling.jtag.ui.linking.JtagLocationInFileProvider;
@@ -55,6 +59,14 @@ public Class<? extends FindReferencesHandler> bindXarchiveReferenceFinder(){
 		return JtagFindReferencesHandler.class;
 	}
 
+	public Class<? extends DefaultEObjectHoverProvider> bindEHoverProvider(){
+		return JtagHoverProvider.class;
+	}
+
+	public Class<? extends IEObjectHoverDocumentationProvider> bindEObjectHover(){
+		return JTagEObjectHover.class;
+	}
+
 //	public Class<? extends XtextTemplateContextType> bindTemplateContextType() {
 //		return XarchiveTemplateContextType.class;
 //}

diff --git a/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/hover/JTagEObjectHover.java b/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/hover/JTagEObjectHover.java
@@ -0,0 +1,25 @@
+package de.nittka.tooling.jtag.ui.hover;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.xtext.ui.editor.hover.html.DefaultHoverDocumentationProvider;
+
+import de.nittka.tooling.jtag.jtag.File;
+import de.nittka.tooling.jtag.jtag.FileName;
+import de.nittka.tooling.jtag.ui.JtagFileURIs;
+
+public class JTagEObjectHover extends DefaultHoverDocumentationProvider {
+
+	private static String SPACING_POSTFIX="<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>";
+
+	@Override
+	public String getDocumentation(EObject object) {
+		if(object instanceof FileName){
+			String location=JtagFileURIs.getImageLocation((File)object.eContainer());
+			if(location!=null){
+				String folder=new java.io.File(location).getParent();
+				return "<img src=\"file://"+location+"\" height=120px><br>"+folder+SPACING_POSTFIX;
+			}
+		}
+		return super.getDocumentation(object);
+	}
+}
diff --git a/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/hover/JtagHoverProvider.java b/de.nittka.tooling.jtag.ui/src/de/nittka/tooling/jtag/ui/hover/JtagHoverProvider.java
@@ -0,0 +1,25 @@
+package de.nittka.tooling.jtag.ui.hover;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.xtext.ui.editor.hover.html.DefaultEObjectHoverProvider;
+
+import de.nittka.tooling.jtag.jtag.FileName;
+
+public class JtagHoverProvider extends DefaultEObjectHoverProvider {
+
+	@Override
+	protected boolean hasHover(EObject o) {
+		if(o instanceof FileName){
+			return true;
+		}
+		return super.hasHover(o);
+	}
+
+	@Override
+	protected String getFirstLine(EObject o) {
+		if(o instanceof FileName){
+			return "<b>"+getLabel(o)+"</b>";
+		}
+		return super.getFirstLine(o);
+	}
+}