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

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/actions/RTrimAction.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/actions/RTrimAction.java
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+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/actions/RTrimAction.java
@@ -0,0 +1,153 @@
+/*
+ * Created on Oct 15, 2004
+ *
+ * The MIT License
+ * Copyright (c) 2004 Stephen Milligan
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a 
+ * copy of this software and associated documentation files (the "Software"), 
+ * to deal in the Software without restriction, including without limitation 
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+ * and/or sell copies of the Software, and to permit persons to whom the Software 
+ * is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in 
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
+ * SOFTWARE.
+ */
+package net.sourceforge.phpeclipse.phpeditor.actions;
+
+import org.eclipse.jface.action.IAction;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.ITextSelection;
+import org.eclipse.jface.text.TextSelection;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.ui.IEditorActionDelegate;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+/**
+ * @author Stephen Milligan
+ */
+public class RTrimAction implements IEditorActionDelegate {
+
+	ITextEditor editor = null;
+
+	/**
+	 * 
+	 */
+	public RTrimAction() {
+		super();
+	}
+
+	public void setActiveEditor(IAction action, IEditorPart targetEditor) {
+
+		if (targetEditor instanceof ITextEditor) {
+			editor = (ITextEditor) targetEditor;
+		}
+	}
+
+	/**
+	 * this gets called for every action
+	 */
+	public void run(IAction action) {
+		IDocument doc = editor.getDocumentProvider().getDocument(
+				editor.getEditorInput());
+		ITextSelection sel = (ITextSelection) editor.getSelectionProvider()
+				.getSelection();
+
+		int currentLine = 0;
+		int originalCursorOffset = sel.getOffset();
+		int cursorOffset = originalCursorOffset;
+		int originalSelectionLength = sel.getLength();
+		int selectionLength = originalSelectionLength;
+		String oldText;
+		int lineEnd;
+
+		try {
+
+			while (currentLine < doc.getNumberOfLines()) {
+				int offset = doc.getLineOffset(currentLine);
+				int length = doc.getLineLength(currentLine);
+				oldText = doc.get(offset, length);
+				String lineDelimiter = doc.getLineDelimiter(currentLine);
+				if (lineDelimiter == null) lineDelimiter = "";
+
+				// -- Starts at the end of the line, looking for the first
+				// non-first 'white space'
+				// -- it then breaks out. No point in carrying on, as we have
+				// found our true line end
+				for (lineEnd = oldText.length() - lineDelimiter.length(); lineEnd > 0; --lineEnd) {
+					if (oldText.charAt(lineEnd - 1) != '\t'
+							&& oldText.charAt(lineEnd - 1) != ' ') {
+						break;
+					}
+				}
+
+				// -- Only replace the line if the lengths are different
+				if (lineEnd != oldText.length() - lineDelimiter.length()) {
+					String newText = oldText.substring(0, lineEnd) + lineDelimiter;
+					doc.replace(offset, length, newText);
+
+//					if (offset + length <= cursorOffset) {
+//						if (oldText.length() != newText.length()) {
+//							cursorOffset -= oldText.length() - newText.length();
+//						}
+//					} else if (offset <= cursorOffset + selectionLength
+//							&& selectionLength > 0) {
+//						selectionLength -= oldText.length() - newText.length();
+//					} else if (offset + length == cursorOffset + 2) {
+//						// Check if the cursor is at the end of the line.
+//						cursorOffset -= 2;
+//					}
+
+					int oldEndOffset = offset + length - lineDelimiter.length();
+					int newEndOffset = offset + lineEnd;
+
+					if (cursorOffset >= oldEndOffset) {
+						cursorOffset -= oldText.length() - newText.length();
+					} else if (cursorOffset >= newEndOffset) {
+						cursorOffset = newEndOffset;
+					}
+					if (selectionLength > 0) {
+						int selectionEndOffset = cursorOffset + selectionLength;
+						if (selectionEndOffset >= oldEndOffset) {
+							if (cursorOffset <= newEndOffset) {
+								// full overlap
+								selectionLength -= oldText.length() - newText.length();
+							} else {
+								// starts inside
+								selectionLength -= oldEndOffset - cursorOffset;
+							}
+						} else if (selectionEndOffset >= newEndOffset) {
+							if (cursorOffset <= newEndOffset) {
+								// ends inside
+								selectionLength -= selectionEndOffset - newEndOffset;
+							} else {
+								// full inside
+								selectionLength = 0;
+							}
+						}
+					}
+				}
+				currentLine++;
+			}
+
+			TextSelection selection = new TextSelection(doc, cursorOffset,
+					selectionLength);
+			editor.getSelectionProvider().setSelection(selection);
+		} catch (Exception blx) {
+			blx.printStackTrace();
+		}
+	}
+
+	public void selectionChanged(IAction action, ISelection selection) {
+	}
+}
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