2004-09-15 Chris Wiebe

	refactoring generic stuff out of browser/ and typeinfo-specific stuff back in
	* src/org/eclipse/cdt/internal/ui/CUIMessages.properties
	* src/org/eclipse/cdt/internal/ui/viewsupport/CUILabelProvider.java
	* src/org/eclipse/cdt/internal/ui/viewsupport/StatusBarUpdater.java
	* src/org/eclipse/cdt/internal/ui/viewsupport/StorageLabelProvider.java

5 files changed, 231 insertions, 14 deletions

diff --git a/core/org.eclipse.cdt.ui/ChangeLog b/core/org.eclipse.cdt.ui/ChangeLog
index 5667b788145..89b1b4b135c 100644
--- a/core/org.eclipse.cdt.ui/ChangeLog
+++ b/core/org.eclipse.cdt.ui/ChangeLog
@@ -1,3 +1,11 @@
+2004-09-15 Chris Wiebe
+
+	refactoring generic stuff out of browser/ and typeinfo-specific stuff back in
+	* src/org/eclipse/cdt/internal/ui/CUIMessages.properties
+	* src/org/eclipse/cdt/internal/ui/viewsupport/CUILabelProvider.java
+	* src/org/eclipse/cdt/internal/ui/viewsupport/StatusBarUpdater.java
+	* src/org/eclipse/cdt/internal/ui/viewsupport/StorageLabelProvider.java
+
 2004-09-14 Alain Magloire
 
 	Pr 73831. Tentative fix
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CUIMessages.properties b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CUIMessages.properties
index bbf8476d07e..8ff79b9a494 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CUIMessages.properties
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CUIMessages.properties
@@ -61,3 +61,4 @@ IndexerOptions.enablePreprocessor = Report &preprocessor problems
 IndexerOptions.enableSemantic = Report &semantic problems
 IndexerOptions.enableSyntactic = Report s&yntactic problems
 
+StatusBarUpdater.num_elements_selected={0} items selected
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CUILabelProvider.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CUILabelProvider.java
index 340b0f1e22a..8bc02661da9 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CUILabelProvider.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CUILabelProvider.java
@@ -12,22 +12,16 @@ package org.eclipse.cdt.internal.ui.viewsupport;
 
 import java.util.ArrayList;
 
-import org.eclipse.cdt.core.browser.ITypeInfo;
-import org.eclipse.cdt.internal.ui.browser.cbrowsing.StorageLabelProvider;
-import org.eclipse.cdt.ui.browser.typeinfo.TypeInfoLabelProvider;
 import org.eclipse.core.resources.IStorage;
-
-import org.eclipse.swt.graphics.Color;
-import org.eclipse.swt.graphics.Image;
-
 import org.eclipse.jface.viewers.IColorProvider;
 import org.eclipse.jface.viewers.ILabelDecorator;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.LabelProvider;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Image;
 
 public class CUILabelProvider extends LabelProvider implements IColorProvider {
 	
-	protected static final TypeInfoLabelProvider fTypeInfoLabelProvider = new TypeInfoLabelProvider(TypeInfoLabelProvider.SHOW_FULLY_QUALIFIED);
 	protected CElementImageProvider fImageLabelProvider;
 	protected StorageLabelProvider fStorageLabelProvider;
 	
@@ -130,9 +124,6 @@ public class CUILabelProvider extends LabelProvider implements IColorProvider {
 	 * @see ILabelProvider#getImage
 	 */
 	public Image getImage(Object element) {
-		if (element instanceof ITypeInfo)
-			return fTypeInfoLabelProvider.getImage(element);
-
 		Image result= fImageLabelProvider.getImageLabel(element, evaluateImageFlags(element));
 		if (result == null && (element instanceof IStorage)) {
 			result= fStorageLabelProvider.getImage(element);
@@ -156,9 +147,6 @@ public class CUILabelProvider extends LabelProvider implements IColorProvider {
 	 * @see ILabelProvider#getText
 	 */
 	public String getText(Object element) {
-		if (element instanceof ITypeInfo)
-			return fTypeInfoLabelProvider.getText(element);
-		
 		String result= CElementLabels.getTextLabel(element, evaluateTextFlags(element));
 		if (result.length() == 0 && (element instanceof IStorage)) {
 			result= fStorageLabelProvider.getText(element);
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/StatusBarUpdater.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/StatusBarUpdater.java
new file mode 100644
index 00000000000..2f8eb354627
--- /dev/null
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/StatusBarUpdater.java
@@ -0,0 +1,91 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.viewsupport;
+
+
+import org.eclipse.cdt.core.browser.ITypeInfo;
+import org.eclipse.cdt.core.model.ICElement;
+import org.eclipse.cdt.internal.ui.CUIMessages;
+import org.eclipse.cdt.ui.browser.typeinfo.TypeInfoLabelProvider;
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IResource;
+
+import org.eclipse.jface.action.IStatusLineManager;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+
+/**
+ * Add the <code>StatusBarUpdater</code> to your ViewPart to have the statusbar
+ * describing the selected elements.
+ */
+public class StatusBarUpdater implements ISelectionChangedListener {
+	
+	private final int LABEL_FLAGS= CElementLabels.DEFAULT_QUALIFIED | CElementLabels.ROOT_POST_QUALIFIED | CElementLabels.APPEND_ROOT_PATH |
+			CElementLabels.M_PARAMETER_TYPES | CElementLabels.M_PARAMETER_NAMES | CElementLabels.M_APP_RETURNTYPE | CElementLabels.M_EXCEPTIONS | 
+		 	CElementLabels.F_APP_TYPE_SIGNATURE;
+
+	private final TypeInfoLabelProvider fTypeInfoLabelProvider = new TypeInfoLabelProvider(TypeInfoLabelProvider.SHOW_FULLY_QUALIFIED + TypeInfoLabelProvider.SHOW_PATH);
+		 	
+	private IStatusLineManager fStatusLineManager;
+	
+	public StatusBarUpdater(IStatusLineManager statusLineManager) {
+		fStatusLineManager= statusLineManager;
+	}
+		
+	/*
+	 * @see ISelectionChangedListener#selectionChanged
+	 */
+	public void selectionChanged(SelectionChangedEvent event) {
+		String statusBarMessage= formatMessage(event.getSelection());
+		fStatusLineManager.setMessage(statusBarMessage);
+	}
+	
+	
+	protected String formatMessage(ISelection sel) {
+		if (sel instanceof IStructuredSelection && !sel.isEmpty()) {
+			IStructuredSelection selection= (IStructuredSelection) sel;
+			
+			int nElements= selection.size();
+			if (nElements > 1) {
+				return CUIMessages.getFormattedString("StatusBarUpdater.num_elements_selected", String.valueOf(nElements)); //$NON-NLS-1$
+			} else { 
+				Object elem= selection.getFirstElement();
+				if (elem instanceof ICElement) {
+					return formatCElementMessage((ICElement) elem);
+				} else if (elem instanceof ITypeInfo) {
+					return formatTypeInfoMessage((ITypeInfo) elem);
+				} else if (elem instanceof IResource) {
+					return formatResourceMessage((IResource) elem);
+				}
+			}
+		}
+		return "";  //$NON-NLS-1$
+	}
+		
+	private String formatCElementMessage(ICElement element) {
+		return CElementLabels.getElementLabel(element, LABEL_FLAGS);
+	}
+		
+	private String formatTypeInfoMessage(ITypeInfo info) {
+		return fTypeInfoLabelProvider.getText(info);
+	}
+
+	private String formatResourceMessage(IResource element) {
+		IContainer parent= element.getParent();
+		if (parent != null && parent.getType() != IResource.ROOT)
+			return element.getName() + CElementLabels.CONCAT_STRING + parent.getFullPath().makeRelative().toString();
+		else
+			return element.getName();
+	}	
+
+}
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/StorageLabelProvider.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/StorageLabelProvider.java
new file mode 100644
index 00000000000..2d6fb1af47b
--- /dev/null
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/StorageLabelProvider.java
@@ -0,0 +1,129 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.ui.viewsupport;
+
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import org.eclipse.core.resources.IStorage;
+import org.eclipse.core.runtime.IPath;
+
+import org.eclipse.swt.graphics.Image;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.LabelProvider;
+
+import org.eclipse.ui.IEditorRegistry;
+import org.eclipse.ui.IFileEditorMapping;
+import org.eclipse.ui.PlatformUI;
+
+/**
+ * Standard label provider for IStorage objects.
+ * Use this class when you want to present IStorage objects in a viewer.
+ */
+public class StorageLabelProvider extends LabelProvider {
+	
+	private IEditorRegistry fEditorRegistry= PlatformUI.getWorkbench().getEditorRegistry();
+	private Map fJarImageMap= new HashMap(10);
+	private Image fDefaultImage;
+
+	/* (non-Javadoc)
+	 * @see ILabelProvider#getImage
+	 */
+	public Image getImage(Object element) {
+		if (element instanceof IStorage) 
+			return getImageForJarEntry((IStorage)element);
+
+		return super.getImage(element);
+	}
+
+	/* (non-Javadoc)
+	 * @see ILabelProvider#getText
+	 */
+	public String getText(Object element) {
+		if (element instanceof IStorage)
+			return ((IStorage)element).getName();
+
+		return super.getText(element);
+	}
+
+	/* (non-Javadoc)
+	 * 
+	 * @see IBaseLabelProvider#dispose
+	 */
+	public void dispose() {
+		if (fJarImageMap != null) {
+			Iterator each= fJarImageMap.values().iterator();
+			while (each.hasNext()) {
+				Image image= (Image)each.next();
+				image.dispose();
+			}
+			fJarImageMap= null;
+		}
+		if (fDefaultImage != null)
+			fDefaultImage.dispose();
+		fDefaultImage= null;
+	}
+	
+	/*
+	 * Gets and caches an image for a JarEntryFile.
+	 * The image for a JarEntryFile is retrieved from the EditorRegistry.
+	 */ 
+	private Image getImageForJarEntry(IStorage element) {
+		if (fJarImageMap == null)
+			return getDefaultImage();
+
+		if (element == null || element.getName() == null)
+			return getDefaultImage();
+
+		// Try to find icon for full name
+		String name= element.getName();
+		Image image= (Image)fJarImageMap.get(name);
+		if (image != null) 
+			return image;
+		IFileEditorMapping[] mappings= fEditorRegistry.getFileEditorMappings();
+		int i= 0;
+		while (i < mappings.length) {
+			if (mappings[i].getLabel().equals(name))
+				break;
+			i++;
+		}
+		String key= name;
+		if (i == mappings.length) {
+			// Try to find icon for extension
+			IPath path= element.getFullPath();
+			if (path == null)
+				return getDefaultImage();
+			key= path.getFileExtension();
+			if (key == null)
+				return getDefaultImage();
+			image= (Image)fJarImageMap.get(key);
+			if (image != null) 
+				return image;
+		}
+
+		// Get the image from the editor registry	
+		ImageDescriptor desc= fEditorRegistry.getImageDescriptor(name);
+		image= desc.createImage();
+
+		fJarImageMap.put(key, image);
+
+		return image;
+	}
+	
+	private Image getDefaultImage() {
+		if (fDefaultImage == null)
+			fDefaultImage= fEditorRegistry.getImageDescriptor((String)null).createImage();
+		return fDefaultImage;
+	}
+}