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/******************************************************************************* |
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/******************************************************************************* |
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* Copyright (c) 2009, 2010 Avaloq Evolution AG and others. |
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* Copyright (c) 2009, 2012 Avaloq Evolution AG and others. |
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* All rights reserved. This program and the accompanying materials |
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* All rights reserved. This program and the accompanying materials |
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* are made available under the terms of the Eclipse Public License v1.0 |
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* are made available under the terms of the Eclipse Public License v1.0 |
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* which accompanies this distribution, and is available at |
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* which accompanies this distribution, and is available at |
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package org.eclipse.jface.internal.text; |
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package org.eclipse.jface.internal.text; |
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import java.util.Arrays; |
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import java.util.Arrays; |
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import org.eclipse.swt.custom.StyledText; |
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import org.eclipse.swt.graphics.GC; |
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import org.eclipse.core.runtime.Assert; |
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import org.eclipse.core.runtime.Assert; |
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Lines 216-222
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}; |
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}; |
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private final Implementation COLUMN_IMPLEMENTATION= new Implementation() { |
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private final Implementation COLUMN_IMPLEMENTATION= new Implementation() { |
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TextEdit replace(ISelection selection, String replacement) throws BadLocationException { |
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private TextEdit replace(ISelection selection, String replacement, boolean delete) throws BadLocationException { |
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try { |
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try { |
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MultiTextEdit root; |
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MultiTextEdit root; |
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IBlockTextSelection cts= (IBlockTextSelection)selection; |
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IBlockTextSelection cts= (IBlockTextSelection)selection; |
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Lines 244-250
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lastDelim= index[0] + delimiters[index[1]].length(); |
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lastDelim= index[0] + delimiters[index[1]].length(); |
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} |
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} |
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} |
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} |
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TextEdit replace= createReplaceEdit(line, visualStartColumn, visualEndColumn, string); |
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TextEdit replace= createReplaceEdit(line, visualStartColumn, visualEndColumn, string, delete); |
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root.addChild(replace); |
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root.addChild(replace); |
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} |
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} |
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while (lastDelim != -1) { |
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while (lastDelim != -1) { |
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Lines 261-267
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endLine++; |
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endLine++; |
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TextEdit edit; |
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TextEdit edit; |
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if (endLine < fDocument.getNumberOfLines()) { |
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if (endLine < fDocument.getNumberOfLines()) { |
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edit= createReplaceEdit(endLine, visualStartColumn, visualEndColumn, string); |
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edit= createReplaceEdit(endLine, visualStartColumn, visualEndColumn, string, delete); |
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} else { |
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} else { |
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// insertion reaches beyond the last line |
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// insertion reaches beyond the last line |
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int insertLocation= root.getExclusiveEnd(); |
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int insertLocation= root.getExclusiveEnd(); |
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Lines 279-284
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Assert.isTrue(false); |
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Assert.isTrue(false); |
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return null; |
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return null; |
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} |
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} |
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} |
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TextEdit replace(ISelection selection, String replacement) throws BadLocationException { |
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return replace(selection, replacement, false); |
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} |
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} |
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String getText(ISelection selection) throws BadLocationException { |
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String getText(ISelection selection) throws BadLocationException { |
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Lines 321-327
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IBlockTextSelection cts= (IBlockTextSelection)selection; |
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IBlockTextSelection cts= (IBlockTextSelection)selection; |
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selection= new BlockTextSelection(fDocument, cts.getStartLine(), cts.getStartColumn(), cts.getEndLine(), cts.getEndColumn() + 1, fTabWidth); |
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selection= new BlockTextSelection(fDocument, cts.getStartLine(), cts.getStartColumn(), cts.getEndLine(), cts.getEndColumn() + 1, fTabWidth); |
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} |
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} |
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return replace(selection, ""); //$NON-NLS-1$ |
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return replace(selection, "", true); //$NON-NLS-1$ |
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} |
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} |
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TextEdit backspace(ISelection selection) throws BadLocationException { |
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TextEdit backspace(ISelection selection) throws BadLocationException { |
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Lines 392-398
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return ts.getEndLine() - ts.getStartLine() + 1; |
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return ts.getEndLine() - ts.getStartLine() + 1; |
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} |
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} |
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private TextEdit createReplaceEdit(int line, int visualStartColumn, int visualEndColumn, String replacement) throws BadLocationException { |
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private TextEdit createReplaceEdit(int line, int visualStartColumn, int visualEndColumn, String replacement, boolean delete) throws BadLocationException { |
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IRegion info= fDocument.getLineInformation(line); |
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IRegion info= fDocument.getLineInformation(line); |
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int lineLength= info.getLength(); |
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int lineLength= info.getLength(); |
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String content= fDocument.get(info.getOffset(), lineLength); |
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String content= fDocument.get(info.getOffset(), lineLength); |
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Lines 400-410
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int endColumn= -1; |
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int endColumn= -1; |
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int visual= 0; |
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int visual= 0; |
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for (int offset= 0; offset < lineLength; offset++) { |
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for (int offset= 0; offset < lineLength; offset++) { |
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if (startColumn == -1 && visual >= visualStartColumn) |
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if (startColumn == -1) { |
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startColumn= offset; |
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if (visual == visualStartColumn) |
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if (visual >= visualEndColumn) { |
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if (!delete && isWider(content.charAt(offset), visual) && replacement.length() == 0) |
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endColumn= offset; |
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startColumn= offset - 1; |
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break; |
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else |
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startColumn= offset; |
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else if (visual > visualStartColumn) { |
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if (isWider(content.charAt(offset - 1), visual)) |
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startColumn= offset - 1; |
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else |
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startColumn= offset; |
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} |
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} |
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if (startColumn != -1) { |
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if (visual == visualEndColumn) { |
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endColumn= offset; |
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break; |
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} else if (visual > visualEndColumn) { |
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if (!delete && isWider(content.charAt(offset - 1), visual)) |
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endColumn= offset - 1; |
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else |
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endColumn= offset; |
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break; |
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} |
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} |
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} |
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visual+= visualSizeIncrement(content.charAt(offset), visual); |
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visual+= visualSizeIncrement(content.charAt(offset), visual); |
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} |
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} |
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Lines 476-481
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return lineLength + Math.max(0, visualColumn - visual); |
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return lineLength + Math.max(0, visualColumn - visual); |
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} |
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} |
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private boolean isWider(char character, int visual) { |
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return visualSizeIncrement(character, visual) > 1; |
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} |
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/** |
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/** |
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* Returns the increment in visual length represented by <code>character</code> given the |
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* Returns the increment in visual length represented by <code>character</code> given the |
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* current visual length. The visual length is <code>1</code> unless <code>character</code> |
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* current visual length. The visual length is <code>1</code> unless <code>character</code> |
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Lines 487-492
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* <code>[0,fTabWidth]</code> |
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* <code>[0,fTabWidth]</code> |
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*/ |
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*/ |
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private int visualSizeIncrement(char character, int visual) { |
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private int visualSizeIncrement(char character, int visual) { |
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if (character > 255 && fStyledText != null) { |
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GC gc= null; |
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try { |
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gc= new GC(fStyledText); |
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int charWidth= gc.stringExtent(new String(Character.toString(character))).x; |
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int singleCharWidth= gc.stringExtent(" ").x; //$NON-NLS-1$ |
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return (int)Math.ceil(charWidth / singleCharWidth); |
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} finally { |
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if (gc != null) |
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gc.dispose(); |
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} |
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} |
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if (character != '\t') |
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if (character != '\t') |
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return 1; |
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return 1; |
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if (fTabWidth <= 0) |
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if (fTabWidth <= 0) |
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Lines 503-508
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private ISelectionProvider fSelectionProvider; |
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private ISelectionProvider fSelectionProvider; |
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private StyledText fStyledText; |
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/** |
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/** |
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* Creates a new processor on the given viewer. |
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* Creates a new processor on the given viewer. |
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* |
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* |
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Lines 515-520
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fRewriteTarget= ext.getRewriteTarget(); |
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fRewriteTarget= ext.getRewriteTarget(); |
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} |
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} |
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fSelectionProvider= viewer.getSelectionProvider(); |
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fSelectionProvider= viewer.getSelectionProvider(); |
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fStyledText= viewer.getTextWidget(); |
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} |
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} |
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/** |
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/** |
