X-Git-Url: http://git.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPContentOutlinePage.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPContentOutlinePage.java
new file mode 100644
index 0000000..d7ab260
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPContentOutlinePage.java
@@ -0,0 +1,251 @@
+package net.sourceforge.phpeclipse.phpeditor;
+
+/**********************************************************************
+Copyright (c) 2000, 2002 IBM Corp. 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 implementation
+    Klaus Hartlage - www.eclipseproject.de
+**********************************************************************/
+
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.BadPositionCategoryException;
+import org.eclipse.jface.text.DefaultPositionUpdater;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IPositionUpdater;
+import org.eclipse.jface.text.Position;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.LabelProvider;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.jface.viewers.Viewer;
+
+import org.eclipse.ui.texteditor.IDocumentProvider;
+import org.eclipse.ui.texteditor.ITextEditor;
+import org.eclipse.ui.views.contentoutline.ContentOutlinePage;
+
+/**
+ * A content outline page which always represents the content of the
+ * connected editor in 10 segments.
+ */
+public class PHPContentOutlinePage extends ContentOutlinePage {
+
+	/**
+	 * A segment element.
+	 */
+	protected static class Segment {
+		public String name;
+		public Position position;
+
+		public Segment(String name, Position position) {
+			this.name= name;
+			this.position= position;
+		}
+
+		public String toString() {
+			return name;
+		}
+	};
+
+	/**
+	 * Divides the editor's document into ten segments and provides elements for them.
+	 */
+	protected class ContentProvider implements ITreeContentProvider {
+
+		protected final static String SEGMENTS= "__java_segments"; //$NON-NLS-1$
+		protected IPositionUpdater fPositionUpdater= new DefaultPositionUpdater(SEGMENTS);
+		protected List fContent= new ArrayList(10);
+
+		protected void parse(IDocument document) {
+
+			int lines= document.getNumberOfLines();
+			int increment= Math.max(Math.round((float) (lines / 10)), 10);
+
+			for (int line= 0; line < lines; line += increment) {
+
+				int length= increment;
+				if (line + increment > lines)
+					length= lines - line;
+
+				try {
+
+					int offset= document.getLineOffset(line);
+					int end= document.getLineOffset(line + length);
+					length= end - offset;
+					Position p= new Position(offset, length);
+					document.addPosition(SEGMENTS, p);
+					fContent.add(new Segment(MessageFormat.format(PHPEditorMessages.getString("OutlinePage.segment.title_pattern"), new Object[] { new Integer(offset) }), p)); //$NON-NLS-1$
+
+				} catch (BadPositionCategoryException x) {
+				} catch (BadLocationException x) {
+				}
+			}
+		}
+
+		/*
+		 * @see IContentProvider#inputChanged(Viewer, Object, Object)
+		 */
+		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+			if (oldInput != null) {
+				IDocument document= fDocumentProvider.getDocument(oldInput);
+				if (document != null) {
+					try {
+						document.removePositionCategory(SEGMENTS);
+					} catch (BadPositionCategoryException x) {
+					}
+					document.removePositionUpdater(fPositionUpdater);
+				}
+			}
+
+			fContent.clear();
+
+			if (newInput != null) {
+				IDocument document= fDocumentProvider.getDocument(newInput);
+				if (document != null) {
+					document.addPositionCategory(SEGMENTS);
+					document.addPositionUpdater(fPositionUpdater);
+
+					parse(document);
+				}
+			}
+		}
+
+		/*
+		 * @see IContentProvider#dispose
+		 */
+		public void dispose() {
+			if (fContent != null) {
+				fContent.clear();
+				fContent= null;
+			}
+		}
+
+		/*
+		 * @see IContentProvider#isDeleted(Object)
+		 */
+		public boolean isDeleted(Object element) {
+			return false;
+		}
+
+		/*
+		 * @see IStructuredContentProvider#getElements(Object)
+		 */
+		public Object[] getElements(Object element) {
+			return fContent.toArray();
+		}
+
+		/*
+		 * @see ITreeContentProvider#hasChildren(Object)
+		 */
+		public boolean hasChildren(Object element) {
+			return element == fInput;
+		}
+
+		/*
+		 * @see ITreeContentProvider#getParent(Object)
+		 */
+		public Object getParent(Object element) {
+			if (element instanceof Segment)
+				return fInput;
+			return null;
+		}
+
+		/*
+		 * @see ITreeContentProvider#getChildren(Object)
+		 */
+		public Object[] getChildren(Object element) {
+			if (element == fInput)
+				return fContent.toArray();
+			return new Object[0];
+		}
+	};
+
+	protected Object fInput;
+	protected IDocumentProvider fDocumentProvider;
+	protected ITextEditor fTextEditor;
+
+	/**
+	 * Creates a content outline page using the given provider and the given editor.
+	 */
+	public PHPContentOutlinePage(IDocumentProvider provider, ITextEditor editor) {
+		super();
+		fDocumentProvider= provider;
+		fTextEditor= editor;
+	}
+	
+	/* (non-Javadoc)
+	 * Method declared on ContentOutlinePage
+	 */
+	public void createControl(Composite parent) {
+
+		super.createControl(parent);
+
+		TreeViewer viewer= getTreeViewer();
+		viewer.setContentProvider(new ContentProvider());
+		viewer.setLabelProvider(new LabelProvider());
+		viewer.addSelectionChangedListener(this);
+
+		if (fInput != null)
+			viewer.setInput(fInput);
+	}
+	
+	/* (non-Javadoc)
+	 * Method declared on ContentOutlinePage
+	 */
+	public void selectionChanged(SelectionChangedEvent event) {
+
+		super.selectionChanged(event);
+
+		ISelection selection= event.getSelection();
+		if (selection.isEmpty())
+			fTextEditor.resetHighlightRange();
+		else {
+			Segment segment= (Segment) ((IStructuredSelection) selection).getFirstElement();
+			int start= segment.position.getOffset();
+			int length= segment.position.getLength();
+			try {
+				fTextEditor.setHighlightRange(start, length, true);
+			} catch (IllegalArgumentException x) {
+				fTextEditor.resetHighlightRange();
+			}
+		}
+	}
+	
+	/**
+	 * Sets the input of the outline page
+	 */
+	public void setInput(Object input) {
+		fInput= input;
+		update();
+	}
+	
+	/**
+	 * Updates the outline page.
+	 */
+	public void update() {
+		TreeViewer viewer= getTreeViewer();
+
+		if (viewer != null) {
+			Control control= viewer.getControl();
+			if (control != null && !control.isDisposed()) {
+				control.setRedraw(false);
+				viewer.setInput(fInput);
+				viewer.expandAll();
+				control.setRedraw(true);
+			}
+		}
+	}
+}