bug 339015: Preference "Show source roots at the top of project" should also apply for Make Target View

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/internal/ui/dnd/AbstractContainerAreaDropAdapter.java

@@ -12,6 +12,7 @@
 package org.eclipse.cdt.make.internal.ui.dnd;
 
 import org.eclipse.cdt.make.core.IMakeTarget;
+import org.eclipse.cdt.make.ui.TargetSourceContainer;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.jface.util.TransferDropTargetListener;
 import org.eclipse.swt.dnd.DND;
@@ -257,6 +258,9 @@ public abstract class AbstractContainerAreaDropAdapter implements TransferDropTa
 			return ((IMakeTarget) dropTarget).getContainer();
 		} else if (dropTarget instanceof IContainer) {
 			return (IContainer) dropTarget;
+		} else if (dropTarget instanceof TargetSourceContainer) {
+			IContainer dropContainer = ((TargetSourceContainer) dropTarget).getContainer();
+			return dropContainer;
 		}
 		return null;
 	}

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/MakeContentProvider.java

@@ -7,19 +7,33 @@
  *
  * Contributors:
  *     QNX Software Systems - Initial API and implementation
+ *     Andrew Gvozdev - some improvements such as adding source folders bug 339015
  *******************************************************************************/
 package org.eclipse.cdt.make.ui;
 
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
+import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.core.model.CoreModel;
+import org.eclipse.cdt.core.settings.model.CProjectDescriptionEvent;
+import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
+import org.eclipse.cdt.core.settings.model.ICDescriptionDelta;
+import org.eclipse.cdt.core.settings.model.ICProjectDescription;
+import org.eclipse.cdt.core.settings.model.ICProjectDescriptionListener;
+import org.eclipse.cdt.core.settings.model.ICProjectDescriptionManager;
+import org.eclipse.cdt.core.settings.model.ICSettingObject;
+import org.eclipse.cdt.core.settings.model.ICSourceEntry;
 import org.eclipse.cdt.make.core.IMakeTarget;
 import org.eclipse.cdt.make.core.IMakeTargetListener;
 import org.eclipse.cdt.make.core.MakeCorePlugin;
 import org.eclipse.cdt.make.core.MakeTargetEvent;
 import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceChangeEvent;
 import org.eclipse.core.resources.IResourceChangeListener;
@@ -27,7 +41,6 @@ import org.eclipse.core.resources.IResourceDelta;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.jface.viewers.AbstractTreeViewer;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.StructuredViewer;
@@ -36,63 +49,132 @@ import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Display;
 
 /**
+ * Content provider for Make Targets view and for Make Targets dialog from
+ * "Make Targets"->"Build..." in project context menu.
+ * 
  * @noextend This class is not intended to be subclassed by clients.
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
-public class MakeContentProvider implements ITreeContentProvider, IMakeTargetListener, IResourceChangeListener {
+public class MakeContentProvider implements ITreeContentProvider, IMakeTargetListener, IResourceChangeListener, ICProjectDescriptionListener {
+	/** presentation of the content, i.e. for MakeView tree of for BuildTargetDialog table */
 	protected boolean bFlatten;
 
 	protected StructuredViewer viewer;
 
 	/**
-	 * Constructor for MakeContentProvider
+	 * Default constructor.
 	 */
 	public MakeContentProvider() {
 		this(false);
 	}
 
+	/**
+	 * Constructor.
+	 * 
+	 * @param flat - {@code true} for "flat" representation for a table
+	 *    or {@code false} to represent as a tree.
+	 */
 	public MakeContentProvider(boolean flat) {
 		bFlatten = flat;
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
+	 */
 	public Object[] getChildren(Object obj) {
 		if (obj instanceof IWorkspaceRoot) {
 			try {
 				return MakeCorePlugin.getDefault().getTargetManager().getTargetBuilderProjects();
 			} catch (CoreException e) {
-				// ignore
+				MakeCorePlugin.log(e);
 			}
 		} else if (obj instanceof IContainer) {
-			ArrayList<IAdaptable> children = new ArrayList<IAdaptable>();
+			IContainer container = (IContainer)obj;
+			ArrayList<Object> children = new ArrayList<Object>();
+			
+			boolean isAddingSourceRoots = !bFlatten && (container instanceof IProject) && CCorePlugin.showSourceRootsAtTopOfProject();
+			
+			// add source roots if necessary
+			if (isAddingSourceRoots) {
+				IProject project = (IProject) container;
+				ICSourceEntry[] srcEntries = getSourceEntries(project);
+				for (ICSourceEntry srcEntry : srcEntries) {
+					if (!srcEntry.getFullPath().equals(project.getFullPath())) {
+						children.add(new TargetSourceContainer(srcEntry));
+					}
+				}
+			}
+			
+			// add regular folders
 			try {
-				IResource[] resource = ((IContainer)obj).members();
+				IResource[] resources = container.members();
-				for (int i = 0; i < resource.length; i++) {
+				for (IResource rc : resources) {
-					if (resource[i] instanceof IContainer) {
+					if (rc instanceof IContainer) {
-						children.add(resource[i]);
+						if (!(isAddingSourceRoots && isSourceEntry(rc))) {
+							children.add(rc);
+						}
 					}
 				}
-				children.addAll(Arrays.asList(MakeCorePlugin.getDefault().getTargetManager().getTargets((IContainer)obj)));
 			} catch (CoreException e) {
-				// ignore
+				MakeCorePlugin.log(e);
+			}
+				
+			// finally add targets
+			try {
+				IMakeTarget[] targets = MakeCorePlugin.getDefault().getTargetManager().getTargets(container);
+				children.addAll(Arrays.asList(targets));
+			} catch (CoreException e) {
+				MakeCorePlugin.log(e);
+			}
+			return children.toArray();
+			
+		} else if (obj instanceof TargetSourceContainer) {
+			ArrayList<Object> children = new ArrayList<Object>();
+			try {
+				IContainer container = ((TargetSourceContainer) obj).getContainer();
+				IResource[] resources = container.members();
+				for (IResource rc : resources) {
+					if (rc instanceof IContainer) {
+						children.add(rc);
+					}
+				}
+				children.addAll(Arrays.asList(MakeCorePlugin.getDefault().getTargetManager().getTargets(container)));
+			} catch (CoreException e) {
+				MakeCorePlugin.log(e);
 			}
 			return children.toArray();
 		}
 		return new Object[0];
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
+	 */
 	public Object getParent(Object obj) {
 		if (obj instanceof IMakeTarget) {
+			// this is ambiguous as make target can sit in 2 places, in its container
+			// or source folder represented by TargetSourceContainer
 			return ((IMakeTarget)obj).getContainer();
 		} else if (obj instanceof IContainer) {
 			return ((IContainer)obj).getParent();
+		} else if (obj instanceof TargetSourceContainer) {
+			IContainer container = ((TargetSourceContainer)obj).getContainer();
+			// TargetSourceContainer sits at project root
+			return container.getProject();
 		}
 		return null;
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
+	 */
 	public boolean hasChildren(Object obj) {
 		return getChildren(obj).length > 0;
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.viewers.ITreeContentProvider#getElements(java.lang.Object)
+	 */
 	public Object[] getElements(Object obj) {
 		if (bFlatten) {
 			List<Object> list = new ArrayList<Object>();
@@ -106,12 +188,18 @@ public class MakeContentProvider implements ITreeContentProvider, IMakeTargetLis
 		return getChildren(obj);
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
+	 */
 	public void dispose() {
 		if (viewer != null) {
 			MakeCorePlugin.getDefault().getTargetManager().removeListener(this);
 		}
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
+	 */
 	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		if (this.viewer == null) {
 			MakeCorePlugin.getDefault().getTargetManager().addListener(this);
@@ -123,22 +211,32 @@ public class MakeContentProvider implements ITreeContentProvider, IMakeTargetLis
 			oldWorkspace = (IWorkspace) oldInput;
 		} else if (oldInput instanceof IContainer) {
 			oldWorkspace = ((IContainer) oldInput).getWorkspace();
+		} else if (oldInput instanceof TargetSourceContainer) {
+			oldWorkspace = ((TargetSourceContainer) oldInput).getContainer().getWorkspace();
 		}
 		if (newInput instanceof IWorkspace) {
 			newWorkspace = (IWorkspace) newInput;
 		} else if (newInput instanceof IContainer) {
 			newWorkspace = ((IContainer) newInput).getWorkspace();
+		} else if (newInput instanceof TargetSourceContainer) {
+			newWorkspace = ((TargetSourceContainer) newInput).getContainer().getWorkspace();
 		}
 		if (oldWorkspace != newWorkspace) {
+			ICProjectDescriptionManager mngr = CoreModel.getDefault().getProjectDescriptionManager();
 			if (oldWorkspace != null) {
 				oldWorkspace.removeResourceChangeListener(this);
+				mngr.removeCProjectDescriptionListener(this);
 			}
 			if (newWorkspace != null) {
 				newWorkspace.addResourceChangeListener(this, IResourceChangeEvent.POST_CHANGE);
+				mngr.addCProjectDescriptionListener(this, CProjectDescriptionEvent.APPLIED);
 			}
 		}
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.cdt.make.core.IMakeTargetListener#targetChanged(org.eclipse.cdt.make.core.MakeTargetEvent)
+	 */
 	public void targetChanged(final MakeTargetEvent event) {
 		final Control ctrl = viewer.getControl();
 		if (ctrl != null && !ctrl.isDisposed()) {
@@ -166,24 +264,31 @@ public class MakeContentProvider implements ITreeContentProvider, IMakeTargetLis
 								} else {
 									//We can't just call refresh on the container target that
 									//has been created since it may be that the container has
-									//been filtered out and the fiters in the viewer don't know
+									//been filtered out and the filters in the viewer don't know
 									//any better how to call out to the filter selection again.
-									//Instead we walk to the root container and refresh it.
+									//Instead we walk to the root project container and refresh it.
-									IContainer container = event.getTarget().getContainer();
+									Set<IContainer> containers = new HashSet<IContainer>();
-									while(container.getParent() != null) {
+									IMakeTarget[] targets = event.getTargets();
+									for (IMakeTarget target : targets) {
+										IContainer container = target.getContainer();
+										while(!(container instanceof IProject) && container.getParent()!=null) {
 											container = container.getParent();
 										}
+										containers.add(container);
+									}
+									for (IContainer container : containers) {
 										viewer.refresh(container);
 									}
 								}
 							}
+						}
 					});
 					break;
 			}
 		}
 	}
 
-	void processDelta(IResourceDelta delta) {
+	private void processDelta(IResourceDelta delta) {
 		// Bail out if the widget was disposed.
 		Control ctrl = viewer.getControl();
 		if (ctrl == null || ctrl.isDisposed() || delta == null) {
@@ -256,10 +361,83 @@ public class MakeContentProvider implements ITreeContentProvider, IMakeTargetLis
 		}
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent)
+	 */
 	public void resourceChanged(IResourceChangeEvent event) {
 		final IResourceDelta delta = event.getDelta();
 		Control ctrl = viewer.getControl();
 		if (ctrl != null && !ctrl.isDisposed())
 			processDelta(delta);
 	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 * @since 7.1
+	 */
+	public void handleEvent(final CProjectDescriptionEvent event) {
+		Display display = Display.getDefault();
+		display.asyncExec(new Runnable() {
+			public void run() {
+				ICDescriptionDelta delta = event.getDefaultSettingCfgDelta();
+				if (delta==null)
+					return;
+				
+				int flags = delta.getChangeFlags();
+				if ( ((flags & ICDescriptionDelta.SOURCE_ADDED) != 0) ||
+					 ((flags & ICDescriptionDelta.SOURCE_REMOVED) != 0) ) {
+					
+					IProject project = null;
+					ICSettingObject setting = delta.getOldSetting();
+					if (setting==null)
+						setting = delta.getNewSetting();
+					
+					if (setting instanceof ICConfigurationDescription)
+						project = ((ICConfigurationDescription) setting).getProjectDescription().getProject();
+					
+					if (project!=null)
+						viewer.refresh(project);
+					else
+						viewer.refresh();
+				}
+			}
+		});
+	}
+
+	/**
+	 * Get source entries for default setting configuration (i.e. configuration shown in UI).
+	 */
+	private static ICSourceEntry[] getSourceEntries(IProject project) {
+		ICProjectDescriptionManager mgr = CCorePlugin.getDefault().getProjectDescriptionManager();
+		ICProjectDescription prjDescription = mgr.getProjectDescription(project, false);
+		if (prjDescription!=null) {
+			ICConfigurationDescription cfgDescription = prjDescription.getDefaultSettingConfiguration();
+			if (cfgDescription!=null) {
+				ICSourceEntry[] srcEntries = cfgDescription.getResolvedSourceEntries();
+				return srcEntries;
+			}
+		}
+		
+		return new ICSourceEntry[0];
+	}
+
+	/**
+	 * Check if the resource is in the list of source entries.
+	
+	 * @param rc - resource to check.
+	 * @return {@code true} if the resource is a source folder, {@code false} otherwise.
+	 * 
+	 * @since 7.1
+	 */
+	public static boolean isSourceEntry(IResource rc) {
+		IProject project = rc.getProject();
+		ICSourceEntry[] srcEntries = getSourceEntries(project);
+		for (ICSourceEntry srcEntry : srcEntries) {
+			if (srcEntry.getFullPath().equals(rc.getFullPath()))
+				return true;
+		}
+		return false;
+	}
+
 }

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/MakeLabelProvider.java

@@ -7,13 +7,16 @@
  *
  * Contributors:
  *     QNX Software Systems - Initial API and implementation
+ *     Andrew Gvozdev - some improvements such as adding source folders bug 339015
  *******************************************************************************/
 package org.eclipse.cdt.make.ui;
 
 
 import org.eclipse.cdt.make.core.IMakeTarget;
 import org.eclipse.cdt.make.internal.ui.MakeUIImages;
+import org.eclipse.cdt.ui.CDTSharedImages;
 import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ITableLabelProvider;
@@ -22,13 +25,15 @@ import org.eclipse.swt.graphics.Image;
 import org.eclipse.ui.model.WorkbenchLabelProvider;
 
 /**
+ * Label provider for Make Targets view and for Make Targets dialog from
+ * "Make Targets"->"Build..." in project context menu.
+ * 
  * @noextend This class is not intended to be subclassed by clients.
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 public class MakeLabelProvider extends LabelProvider implements ITableLabelProvider {
 	private IPath pathPrefix;
-
+	private WorkbenchLabelProvider fLableProvider = new WorkbenchLabelProvider();
-	WorkbenchLabelProvider fLableProvider = new WorkbenchLabelProvider();
 
 	public MakeLabelProvider() {
 		this(null);
@@ -43,10 +48,14 @@ public class MakeLabelProvider extends LabelProvider implements ITableLabelProvi
 	@Override
 	public Image getImage(Object obj) {
 		Image image = null;
-		if (obj instanceof IMakeTarget) {
+		if (obj instanceof TargetSourceContainer) {
-			return MakeUIImages.getImage(MakeUIImages.IMG_OBJS_BUILD_TARGET);
+			return CDTSharedImages.getImage(CDTSharedImages.IMG_OBJS_SOURCE_ROOT);
 		} else if (obj instanceof IContainer) {
+			if (!(obj instanceof IProject) && MakeContentProvider.isSourceEntry((IContainer) obj))
+				return CDTSharedImages.getImage(CDTSharedImages.IMG_OBJS_SOURCE_ROOT);
 			return fLableProvider.getImage(obj);
+		} else if (obj instanceof IMakeTarget) {
+			return MakeUIImages.getImage(MakeUIImages.IMG_OBJS_BUILD_TARGET);
 		}
 		return image;
 	}
@@ -56,10 +65,16 @@ public class MakeLabelProvider extends LabelProvider implements ITableLabelProvi
 	 */
 	@Override
 	public String getText(Object obj) {
-		if (obj instanceof IMakeTarget) {
+		if (obj instanceof TargetSourceContainer) {
-			return ((IMakeTarget) obj).getName();
+			IContainer container = ((TargetSourceContainer) obj).getContainer();
+			IPath path = container.getFullPath();
+			// remove leading project name
+			path = path.removeFirstSegments(1);
+			return path.toString();
 		} else if (obj instanceof IContainer) {
 			return fLableProvider.getText(obj);
+		} else if (obj instanceof IMakeTarget) {
+			return ((IMakeTarget) obj).getName();
 		}
 		return ""; //$NON-NLS-1$
 	}

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/TargetSourceContainer.java

@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * Copyright (c) 2011, 2011 Andrew Gvozdev.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Andrew Gvozdev - Initial implementation
+ *******************************************************************************/
+
+package org.eclipse.cdt.make.ui;
+
+import org.eclipse.cdt.core.settings.model.ICSourceEntry;
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IWorkspaceRoot;
+import org.eclipse.core.resources.ResourcesPlugin;
+
+/**
+ * A class to represent source folders added to Make Targets View on top.
+ * 
+ * @noextend This class is not intended to be subclassed by clients.
+ * @noinstantiate This class is not intended to be instantiated by clients.
+ *
+ * @since 7.1
+ */
+public class TargetSourceContainer {
+	private IContainer container;
+	
+	/**
+	 * Constructor.
+	 * 
+	 * @param srcEntry - source entry backing the container.
+	 */
+	public TargetSourceContainer(ICSourceEntry srcEntry) {
+		IWorkspaceRoot wspRoot = ResourcesPlugin.getWorkspace().getRoot();
+		container = wspRoot.getFolder(srcEntry.getFullPath());
+	}
+	
+	/**
+	 * Returns resource container associated with the source entry.
+	 * 
+	 * @return resource container.
+	 */
+	public IContainer getContainer() {
+		return container;
+	}
+
+	@Override
+	public int hashCode() {
+		return container.hashCode();
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj instanceof TargetSourceContainer)
+			return container.equals(((TargetSourceContainer) obj).container);
+		return false;
+	}
+
+}

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/actions/AbstractTargetAction.java

@@ -17,6 +17,7 @@ import org.eclipse.cdt.core.model.ICProject;
 import org.eclipse.cdt.make.core.IMakeTarget;
 import org.eclipse.cdt.make.core.MakeCorePlugin;
 import org.eclipse.cdt.make.internal.ui.MakeUIPlugin;
+import org.eclipse.cdt.make.ui.TargetSourceContainer;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IResource;
@@ -84,6 +85,8 @@ public abstract class AbstractTargetAction
 				} else {
 					fContainer = ((IResource)obj).getParent();
 				}
+			} else if (obj instanceof TargetSourceContainer) {
+				fContainer = ((TargetSourceContainer)obj).getContainer();
 			} else if (obj instanceof IMakeTarget) {
 				fContainer = ((IMakeTarget)obj).getContainer();
 			} else {

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/views/AddTargetAction.java

@@ -15,6 +15,7 @@ import org.eclipse.cdt.make.core.IMakeTarget;
 import org.eclipse.cdt.make.internal.ui.MakeUIImages;
 import org.eclipse.cdt.make.internal.ui.MakeUIPlugin;
 import org.eclipse.cdt.make.internal.ui.dnd.MakeTargetDndUtil;
+import org.eclipse.cdt.make.ui.TargetSourceContainer;
 import org.eclipse.cdt.make.ui.dialogs.MakeTargetDialog;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.runtime.CoreException;
@@ -43,12 +44,20 @@ public class AddTargetAction extends SelectionListenerAction {
 	public void run() {
 		Object selection = getSelectedElement();
 		try {
-			if (selection instanceof IContainer) {
+			if (selection instanceof IMakeTarget) {
-				MakeTargetDialog dialog = new MakeTargetDialog(shell, (IContainer) selection);
-				dialog.open();
-			} else if (selection instanceof IMakeTarget) {
 				IMakeTarget makeTarget = (IMakeTarget)selection;
 				MakeTargetDndUtil.copyOneTarget(makeTarget, makeTarget.getContainer(), DND.DROP_COPY, shell, false);
+			} else {
+				IContainer container = null;
+				if (selection instanceof TargetSourceContainer) {
+					container = ((TargetSourceContainer) selection).getContainer();
+				} else if (selection instanceof IContainer) {
+					container = (IContainer) selection;
+				}
+				if (container!=null) {
+					MakeTargetDialog dialog = new MakeTargetDialog(shell, container);
+					dialog.open();
+				}
 			}
 		} catch (CoreException e) {
 			MakeUIPlugin.errorDialog(shell, MakeUIPlugin.getResourceString("AddTargetAction.exception.title"), //$NON-NLS-1$
@@ -65,7 +74,7 @@ public class AddTargetAction extends SelectionListenerAction {
 	private Object getSelectedElement() {
 		if (getStructuredSelection().size()==1) {
 			Object element = getStructuredSelection().getFirstElement();
-			if (element instanceof IContainer || element instanceof IMakeTarget) {
+			if (element instanceof IContainer || element instanceof TargetSourceContainer || element instanceof IMakeTarget) {
 				return element;
 			}
 		}

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/views/FilterEmtpyFoldersAction.java

@@ -11,11 +11,15 @@
 
 package org.eclipse.cdt.make.ui.views;
 
+import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.make.core.IMakeTarget;
 import org.eclipse.cdt.make.core.MakeCorePlugin;
 import org.eclipse.cdt.make.internal.ui.MakeUIImages;
 import org.eclipse.cdt.make.internal.ui.MakeUIPlugin;
-import org.eclipse.core.resources.IFolder;
+import org.eclipse.cdt.make.ui.MakeContentProvider;
+import org.eclipse.cdt.make.ui.TargetSourceContainer;
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IResourceProxy;
 import org.eclipse.core.resources.IResourceProxyVisitor;
@@ -57,7 +61,7 @@ public class FilterEmtpyFoldersAction extends Action {
 			//Check the make targets of the specified container, and if they don't exist, run
 			//through the children looking for the first match that we can find that contains
 			//a make target.
-			private boolean hasMakeTargets(IFolder container) throws CoreException {
+			private boolean hasMakeTargets(IContainer container) throws CoreException {
 				IMakeTarget [] targets = MakeCorePlugin.getDefault().getTargetManager().getTargets(container);
 				if(targets != null && targets.length > 0) {
 					return true;
@@ -74,7 +78,14 @@ public class FilterEmtpyFoldersAction extends Action {
 						if(proxy.getType() != IResource.FOLDER) {
 							return true;	//We only look at folders for content
 						}
-						IFolder folder = (IFolder) proxy.requestResource();
+						IContainer folder = (IContainer) proxy.requestResource();
+						if (CCorePlugin.showSourceRootsAtTopOfProject() && !(folder instanceof IProject)) {
+							boolean isSourceEntry = MakeContentProvider.isSourceEntry(folder);
+							if (isSourceEntry)
+								return false;
+						}
+
+						
 						IMakeTarget [] targets = MakeCorePlugin.getDefault().getTargetManager().getTargets(folder);
 						if(targets != null && targets.length > 0) {
 							haveTargets[0] = true;
@@ -88,20 +99,40 @@ public class FilterEmtpyFoldersAction extends Action {
 				return haveTargets[0];
 			}
 
+			/* (non-Javadoc)
+			 * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
+			 */
 			@Override
 			public boolean select(Viewer viewer, Object parentElement, Object element) {
-				if (isChecked() && element instanceof IFolder) {
+				if (isChecked()) {
+					IContainer container = null;
+					if (element instanceof IContainer) {
+						container = (IContainer)element;
+						if (!(container instanceof IProject)) {
+							// under subfolders do not show source roots second time (when filtered)
+							if (CCorePlugin.showSourceRootsAtTopOfProject() && MakeContentProvider.isSourceEntry(container))
+								return false;
+						}
+					} else if (element instanceof TargetSourceContainer) {
+						container = ((TargetSourceContainer) element).getContainer();
+					}
+
+					if (container!=null) {
 						try {
-						return hasMakeTargets((IFolder)element);
+							return hasMakeTargets(container);
 						} catch(Exception ex) {
 							return false;
 						}
 					}
+				}
 				return true;
 			}
 		});
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.jface.action.Action#run()
+	 */
 	@Override
 	public void run() {
 		fViewer.refresh();

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/views/MakeView.java

@@ -26,6 +26,7 @@ import org.eclipse.cdt.make.internal.ui.dnd.TextTransferDropTargetListener;
 import org.eclipse.cdt.make.ui.IMakeHelpContextIds;
 import org.eclipse.cdt.make.ui.MakeContentProvider;
 import org.eclipse.cdt.make.ui.MakeLabelProvider;
+import org.eclipse.cdt.make.ui.TargetSourceContainer;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.jface.action.IMenuListener;
@@ -64,11 +65,12 @@ import org.eclipse.ui.part.DrillDownAdapter;
 import org.eclipse.ui.part.ViewPart;
 
 /**
+ * Implementation of Make Target View.
+ * 
  * @noextend This class is not intended to be subclassed by clients.
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 public class MakeView extends ViewPart {
-
 	private static final String TARGET_BUILD_LAST_COMMAND = "org.eclipse.cdt.make.ui.targetBuildLastCommand"; //$NON-NLS-1$
 
 	private Clipboard clipboard;
@@ -129,13 +131,14 @@ public class MakeView extends ViewPart {
 		});
 
 		fViewer.setSorter(new ViewerSorter() {
-
 			@Override
 			public int category(Object element) {
-				if (element instanceof IResource) {
+				if (element instanceof TargetSourceContainer) {
-					return 0;
-				}
 					return 1;
+				} else if (element instanceof IResource) {
+					return 2;
+				}
+				return 3;
 			}
 		});
 		fViewer.setInput(ResourcesPlugin.getWorkspace().getRoot());

build/org.eclipse.cdt.make.ui/src/org/eclipse/cdt/make/ui/views/PasteTargetAction.java

@@ -18,6 +18,7 @@ import org.eclipse.cdt.make.internal.ui.dnd.MakeTargetTransfer;
 import org.eclipse.cdt.make.internal.ui.dnd.MakeTargetTransferData;
 import org.eclipse.cdt.make.internal.ui.dnd.MakeTargetTransferDropTargetListener;
 import org.eclipse.cdt.make.internal.ui.dnd.TextTransferDropTargetListener;
+import org.eclipse.cdt.make.ui.TargetSourceContainer;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.swt.dnd.Clipboard;
@@ -146,6 +147,10 @@ public class PasteTargetAction extends SelectionListenerAction {
 			return dropContainer;
 		}
 
+		if (first instanceof TargetSourceContainer) {
+			return ((TargetSourceContainer) first).getContainer();
+		}
+
 		return null;
 	}