RSS news reader; initially copied from "all the news"

[phpeclipse.git] / archive / net.sourceforge.phpeclipse.news / src / net / sourceforge / phpeclipse / news / view / NewsTreeViewerProvider.java

diff --git a/archive/net.sourceforge.phpeclipse.news/src/net/sourceforge/phpeclipse/news/view/NewsTreeViewerProvider.java b/archive/net.sourceforge.phpeclipse.news/src/net/sourceforge/phpeclipse/news/view/NewsTreeViewerProvider.java
new file mode 100644 (file)
index 0000000..8b225b3
--- /dev/null
+++ b/archive/net.sourceforge.phpeclipse.news/src/net/sourceforge/phpeclipse/news/view/NewsTreeViewerProvider.java
@@ -0,0 +1,130 @@
+/*
+ * Created on 16 mai 2004
+ * Copyright 2004 Jérôme Nègre
+ */
+package net.sourceforge.phpeclipse.news.view;
+
+import net.sourceforge.phpeclipse.news.Channel;
+import net.sourceforge.phpeclipse.news.IconManager;
+import net.sourceforge.phpeclipse.news.Item;
+import net.sourceforge.phpeclipse.news.Plugin;
+
+import org.eclipse.jface.viewers.ILabelProvider;
+import org.eclipse.jface.viewers.ILabelProviderListener;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.swt.graphics.Image;
+
+/**
+ * @author Jérôme Nègre
+ */
+public class NewsTreeViewerProvider
+               implements
+                       ITreeContentProvider,
+                       ILabelProvider {
+
+       public Object[] getChildren(Object parentElement) {
+               if(parentElement instanceof Channel) {
+                       return ((Channel)parentElement).getItems().toArray();
+               } else {
+                       return null;
+               }
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
+        */
+       public Object getParent(Object element) {
+               // TODO Auto-generated method stub
+               return null;
+       }
+
+       public boolean hasChildren(Object element) {
+               if(element instanceof Channel) {
+                       return !((Channel)element).getItems().isEmpty();
+               } else {
+                       return false;
+               }
+       }
+
+       public Object[] getElements(Object inputElement) {
+               return ((Plugin)inputElement).getChannelList().toArray();
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jface.viewers.IContentProvider#dispose()
+        */
+       public void dispose() {
+               // TODO Auto-generated method stub
+               
+       }
+
+       /* (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) {
+               // TODO Auto-generated method stub
+       }
+
+       public Image getImage(Object element) {
+
+               String iconId;
+               
+               if(element instanceof Channel) {
+                       Channel channel = (Channel)element;
+                       if(channel.isRefreshing()) {
+                               iconId = IconManager.ICON_STATUS_REFRESH;
+                       } else if(channel.getErrorMessage()!=null) {
+                               iconId = IconManager.ICON_STATUS_ERROR;
+                       } else if(channel.isUnread()) {
+                               iconId = IconManager.ICON_STATUS_UNREAD;
+                       } else {
+                               iconId = IconManager.ICON_STATUS_READ;
+                       }
+               } else if(element instanceof Item) {
+                       Item item = (Item)element;
+                       if(item.isReadFlag()) {
+                               iconId = IconManager.ICON_STATUS_READ;
+                       } else {
+                               iconId = IconManager.ICON_STATUS_UNREAD;
+                       }
+               } else {
+                       return null;
+               }
+               return Plugin.getDefault().getImageRegistry().getDescriptor(iconId).createImage();
+       }
+
+       public String getText(Object element) {
+               if(element instanceof Channel) {
+                       return ((Channel)element).getTitle();
+               } else if(element instanceof Item) {
+                       return ((Item)element).getUsableTitle();
+               } else {
+                       return "Unexpected object: "+element;
+               }
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
+        */
+       public void addListener(ILabelProviderListener listener) {
+               // TODO Auto-generated method stub
+               
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
+        */
+       public boolean isLabelProperty(Object element, String property) {
+               // TODO Auto-generated method stub
+               return false;
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
+        */
+       public void removeListener(ILabelProviderListener listener) {
+               // TODO Auto-generated method stub
+               
+       }
+}