plugins/org.eclipse.actf.visualization.ui.report/src/org/eclipse/actf/visualization/ui/report/srcviewer/SrcViewer.java - gerrit/actf/org.eclipse.actf.visualization - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2008 IBM Corporation and Others
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Kentarou FUKUDA - initial API and implementation
  *******************************************************************************/
 package org.eclipse.actf.visualization.ui.report.srcviewer;

 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileReader;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.Vector;

 import org.eclipse.actf.util.JapaneseEncodingDetector;
 import org.eclipse.actf.visualization.Constants;
 import org.eclipse.actf.visualization.ui.report.internal.Messages;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.StyleRange;
 import org.eclipse.swt.custom.StyledText;
 import org.eclipse.swt.dnd.Clipboard;
 import org.eclipse.swt.dnd.TextTransfer;
 import org.eclipse.swt.dnd.Transfer;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.events.MouseAdapter;
 import org.eclipse.swt.events.MouseEvent;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.layout.FillLayout;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;


 public class SrcViewer {

     private Composite parentCom;

     private Display display;

     private StyledText styledText, lineText;

     private Text lineNo, columnNo;

     int start, end;

     Color hlFg, hlBg;

     Vector<Integer> startV, lenV;
     Vector<Color> fgV, bgV;

     private static Shell searchDlgShell;

     private String highLightedText = ""; //$NON-NLS-1$

     private boolean highlighted = false;

     private Button copyButton;

     /**
      *
      */
     public SrcViewer(Composite parent) {

         //TODO very old implimentation, use JFace SourceViewer

         parentCom = parent;
         display = parent.getDisplay();

         Composite composite = new Composite(parent, SWT.NONE);
         GridLayout gridLayout = new GridLayout();
         gridLayout.numColumns = 1;
         composite.setLayout(gridLayout);


         Composite composite2 = new Composite(composite, SWT.NONE);
         gridLayout = new GridLayout();
         gridLayout.numColumns = 6;
         gridLayout.marginHeight = gridLayout.marginWidth = 0;
         gridLayout.horizontalSpacing = gridLayout.verticalSpacing = 0;
         composite2.setLayout(gridLayout);

         GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
         gridData.horizontalAlignment = GridData.FILL;
         gridData.grabExcessHorizontalSpace = true;
         composite2.setLayoutData(gridData);

         Label label = new Label(composite2, SWT.NONE);
         label.setText(Messages.getString("SrcViewer.3")); //$NON-NLS-1$
         gridData = new GridData();
         gridData.horizontalIndent = 5;
         label.setLayoutData(gridData);

         lineNo = new Text(composite2, SWT.BORDER | SWT.RIGHT);
         gridData = new GridData();
         gridData.widthHint = 70;
         lineNo.setLayoutData(gridData);
         lineNo.addKeyListener(new KeyAdapter() {
             public void keyPressed(KeyEvent arg0) {
                 if (arg0.stateMask == SWT.CTRL && (arg0.keyCode == 'f' || arg0.keyCode == 'F')) {
                     openSearchDialog();
                 }
             }

             public void keyReleased(KeyEvent arg0) {
                 if (arg0.stateMask != SWT.NONE) {
                     return;
                 }
                 try {
                     clearHighlight(false);
                     int line = Integer.parseInt(lineNo.getText());
                     int lineCnt = styledText.getLineCount();
                     if (line < 1) {
                         line = 1;
                         lineNo.setText(String.valueOf(line));
                     } else if (line > lineCnt) {
                         line = lineCnt;
                         lineNo.setText(String.valueOf(line));
                     }
                     columnNo.setText("0"); //$NON-NLS-1$
                     highlight(line, 0, line + 1, 0, false);

                 } catch (NumberFormatException e) {
                     lineNo.setText(""); //$NON-NLS-1$
                 }

             }
         });

         label = new Label(composite2, SWT.NONE);
         label.setText(Messages.getString("SrcViewer.6")); //$NON-NLS-1$
         gridData = new GridData();
         gridData.horizontalIndent = 10;
         label.setLayoutData(gridData);

         columnNo = new Text(composite2, SWT.BORDER | SWT.RIGHT);
         gridData = new GridData();
         gridData.widthHint = 70;
         columnNo.setLayoutData(gridData);
         columnNo.addKeyListener(new KeyAdapter() {
             public void keyPressed(KeyEvent arg0) {
                 if (arg0.stateMask == SWT.CTRL && (arg0.keyCode == 'f' || arg0.keyCode == 'F')) {
                     openSearchDialog();
                 }
             }

             public void keyReleased(KeyEvent arg0) {
                 if (arg0.stateMask != SWT.NONE) {
                     return;
                 }

                 try {
                     clearHighlight(false);
                     int line = Integer.parseInt(lineNo.getText());
                     int colCnt;
                     if (line < styledText.getLineCount()) {
                         colCnt = styledText.getOffsetAtLine(line) - styledText.getOffsetAtLine(line - 1) - 1;
                     } else {
                         colCnt = styledText.getCharCount() - styledText.getOffsetAtLine(line - 1);

                     }
                     int column = Integer.parseInt(columnNo.getText());
                     if (column < 0) {
                         column = 0;
                         columnNo.setText(String.valueOf(column));
                     } else if (column >= colCnt) {
                         column = colCnt;
                         columnNo.setText(String.valueOf(column));
                     }
                     highlight(line, column, line + 1, 0, false);

                 } catch (NumberFormatException e) {
                     columnNo.setText(""); //$NON-NLS-1$
                 }

             }
         });

         Button searchButton = new Button(composite2, SWT.PUSH);
         searchButton.setText(Messages.getString("SrcViewer.8")); //$NON-NLS-1$
         gridData = new GridData();
         gridData.horizontalIndent = 20;
         searchButton.setLayoutData(gridData);
         searchButton.addSelectionListener(new SelectionAdapter() {
             public void widgetSelected(SelectionEvent arg0) {
                 openSearchDialog();
             }
         });

         copyButton = new Button(composite2, SWT.PUSH);
         copyButton.setText(Messages.getString("SrcViewer.9")); //$NON-NLS-1$
         gridData = new GridData();
         gridData.horizontalIndent = 10;
         copyButton.setLayoutData(gridData);
         copyButton.setEnabled(false);
         copyButton.addSelectionListener(new SelectionAdapter() {
             public void widgetSelected(SelectionEvent arg0) {
                 copyToClipBoard();
             }
         });

         Composite composite3 = new Composite(composite, SWT.NONE);
         gridLayout = new GridLayout();
         gridLayout.numColumns = 2;
         composite3.setLayout(gridLayout);

         gridData = new GridData(GridData.FILL_BOTH);
         gridData.horizontalAlignment = GridData.FILL;
         gridData.grabExcessHorizontalSpace = true;
         gridData.verticalAlignment = GridData.FILL;
         gridData.grabExcessVerticalSpace = true;
         composite3.setLayoutData(gridData);

         lineText = new StyledText(composite3, SWT.NONE);
         gridData = new GridData(GridData.VERTICAL_ALIGN_FILL);
         gridData.widthHint = 32;
         //gridData.horizontalAlignment=GridData.FILL;
         gridData.grabExcessVerticalSpace = true;
         lineText.setLayoutData(gridData);
         lineText.setEditable(false);

         styledText = new StyledText(composite3, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
         gridData = new GridData(GridData.FILL_BOTH);
         gridData.horizontalAlignment = GridData.FILL;
         gridData.grabExcessHorizontalSpace = true;
         gridData.verticalAlignment = GridData.FILL;
         gridData.grabExcessVerticalSpace = true;
         styledText.setLayoutData(gridData);

         styledText.addSelectionListener(new SelectionAdapter() {
             public void widgetSelected(SelectionEvent arg0) {
                 getSelectionLineCol();
                 setCopyButton();
             }
         });

         styledText.addMouseListener(new MouseAdapter() {
             public void mouseDown(MouseEvent arg0) {
                 getSelectionLineCol();
             }
         });

         styledText.setKeyBinding('C' | SWT.MOD1, SWT.NULL);
         styledText.setKeyBinding('X' | SWT.MOD1, SWT.NULL);

         styledText.addKeyListener(new KeyAdapter() {
             public void keyPressed(KeyEvent arg0) {
                 if (arg0.keyCode == SWT.PAGE_DOWN || arg0.keyCode == SWT.PAGE_UP || arg0.keyCode == SWT.HOME
                         || arg0.keyCode == SWT.END || arg0.keyCode == SWT.ARROW_DOWN || arg0.keyCode == SWT.ARROW_UP
                         || arg0.keyCode == SWT.ARROW_LEFT || arg0.keyCode == SWT.ARROW_RIGHT) {
                     getSelectionLineCol();
                     setLineText();
                 } else if (arg0.stateMask == SWT.CTRL) {
                     if (arg0.keyCode == 'f' || arg0.keyCode == 'F') {
                         openSearchDialog();
                     } else if (arg0.keyCode == 'c' || arg0.keyCode == 'C') {
                         copyToClipBoard();
                     }
                 }
             }
         });

         styledText.getVerticalBar().addSelectionListener(new SelectionAdapter() {
             public void widgetSelected(SelectionEvent arg0) {
                 setLineText();
             }
         });

         parentCom.addKeyListener(new KeyAdapter() {
             public void keyPressed(KeyEvent arg0) {
                 if (arg0.stateMask == SWT.CTRL) {
                     if (arg0.keyCode == 'f' || arg0.keyCode == 'F') {
                         openSearchDialog();
                     } else if (arg0.keyCode == 'c' || arg0.keyCode == 'C') {
                         copyToClipBoard();
                     }
                 }
             }
         });

         hlFg = styledText.getSelectionForeground();
         hlBg = styledText.getSelectionBackground();

         startV = new Vector<Integer>();
         lenV = new Vector<Integer>();
         fgV = new Vector<Color>();
         bgV = new Vector<Color>();
     }

     private void setCopyButton() {
         String selText = styledText.getSelectionText();
         if (selText.equals("") && highLightedText.equals("") //$NON-NLS-1$ //$NON-NLS-2$
                 || !selText.equals("") && highlighted) { //$NON-NLS-1$
             copyButton.setEnabled(false);
         } else {
             copyButton.setEnabled(true);
         }
     }

     private void copyToClipBoard() {
         if (!copyButton.getEnabled()) {
             return;
         }

         String strText;
         if (!highLightedText.equals("")) { //$NON-NLS-1$
             strText = highLightedText;
         } else {
             strText = styledText.getSelectionText();
         }

         Clipboard clipboard = new Clipboard(display);
         clipboard.setContents(new Object[] { strText }, new Transfer[] { TextTransfer.getInstance() });
     }

     private void openSearchDialog() {
         if (searchDlgShell == null || searchDlgShell.isDisposed()) {
             searchDlgShell = new Shell(parentCom.getShell(), SWT.DIALOG_TRIM | SWT.PRIMARY_MODAL);
             searchDlgShell.setSize(600, 170);
             searchDlgShell.setLayout(new FillLayout());
             new DialogTextSearch(searchDlgShell, this);
             searchDlgShell.open();

         } else {
             searchDlgShell.forceActive();
         }
     }

     private void setLineText() {
         StringBuffer strBuf = new StringBuffer();
         int len = lineText.getBounds().height / styledText.getLineHeight();
         int top = styledText.getTopIndex();
         for (int i = 0; i < len; i++) {
             strBuf.append(String.valueOf(top + i + 1) + "\r\n"); //$NON-NLS-1$
         }
         lineText.setText(strBuf.toString());
         styledText.setTopIndex(top);
     }

     public void setHighlightColor(Color hlFg, Color hlBg) {
         this.hlFg = hlFg;
         this.hlBg = hlBg;
     }

     public void getSelectionLineCol() {
         int pos = styledText.getSelectionRange().x;
         int line = styledText.getLineAtOffset(pos) + 1;// 1 base
         lineNo.setText(new Integer(line).toString());
         columnNo.setText(new Integer(pos - styledText.getOffsetAtLine(line - 1)).toString());

     }

     public void openFile(File target) {
         styledText.setText(""); //$NON-NLS-1$
         //TODO check
         try {
             String encoding = Constants.DEFAULT_ENCODING;

             JapaneseEncodingDetector JED = null;

             InputStreamReader isr = null;
             InputStream is = new FileInputStream(target);
             try {
                 JED = new JapaneseEncodingDetector(is);
                 encoding = JED.detect();
                 isr = new InputStreamReader(JED.getInputStream(), encoding);
             } catch (Exception e2) {
                 //e2.printStackTrace();
             }

             BufferedReader br = null;
             if (isr != null) {
                 br = new BufferedReader(isr);
             } else {
                 br = new BufferedReader(new FileReader(target));
             }
             String line = new String();
             try {
                 while ((line = br.readLine()) != null) {
                     styledText.append(line + "\n"); //$NON-NLS-1$
                 }
             } catch (Exception e) {
                 try {
                     isr = new InputStreamReader(JED.getInputStream(), "MS932"); //$NON-NLS-1$
                     styledText.setText(""); //$NON-NLS-1$
                     br = new BufferedReader(isr);
                     while ((line = br.readLine()) != null) {
                         styledText.append(line + "\n"); //$NON-NLS-1$
                     }
                 } catch (Exception e2) {
                     styledText.setText(Messages.getString("SrcViewer.0") + target.getName()); //$NON-NLS-1$
                 }
             }
             is.close();
             br.close();
             isr.close();
         } catch (Exception e) {
             //e.printStackTrace();
         }

         setLineText();
         initializeColor();
     }

     public void setText(String target) {
         styledText.setText(target);
         setLineText();
         initializeColor();
     }

     private void initializeColor() {
         startV.clear();
         lenV.clear();
         fgV.clear();
         bgV.clear();

         lineNo.setText(""); //$NON-NLS-1$
         columnNo.setText(""); //$NON-NLS-1$
     }

     public void selectByOffset(int start, int len) {
         clearHighlight();
         styledText.setSelection(start, start + len);
         getSelectionLineCol();
         setLineText();
     }

     private void setStyleByOffset(int start, int len, Color fgcolor, Color bgcolor) {
         StyleRange styleRange = new StyleRange();
         styleRange.start = start;
         styleRange.length = len;
         styleRange.foreground = fgcolor;
         styleRange.background = bgcolor;
         styledText.setStyleRange(styleRange);
     }

     public void clearColor() {
         styledText.setStyleRange(null);
         initializeColor();
     }

     public void setColor(int startLine, int startPos, int endLine, int endPos, Color fgcolor, Color bgcolor) {
         calculateStartEnd(startLine, startPos, endLine, endPos);
         setStyleByOffset(start, end - start, fgcolor, bgcolor);
         startV.add(new Integer(start));
         lenV.add(new Integer(end - start));
         fgV.add(fgcolor);
         bgV.add(bgcolor);
     }

     public void clearHighlight() {
         clearHighlight(true);
         highlighted = false;
         highLightedText = ""; //$NON-NLS-1$
         setCopyButton();
     }

     private void clearHighlight(boolean bUpdate) {

         styledText.setStyleRange(null);
         for (int i = 0; i < startV.size(); i++) {
             StyleRange styleRange = new StyleRange();
             styleRange.start = ((Integer) startV.get(i)).intValue();
             styleRange.length = ((Integer) lenV.get(i)).intValue();
             styleRange.foreground = fgV.get(i);
             styleRange.background = bgV.get(i);
             styledText.setStyleRange(styleRange);
         }

         if (bUpdate) {
             lineNo.setText(""); //$NON-NLS-1$
             columnNo.setText(""); //$NON-NLS-1$
         }

     }

     public void highlight(int startLine, int startPos, int endLine, int endPos) {
         highlight(startLine, startPos, endLine, endPos, true);
     }

     private void highlight(int startLine, int startPos, int endLine, int endPos, boolean bUpdate) {
         //Color oldFg=styledText.getSelectionForeground();
         //Color oldBg=styledText.getSelectionBackground();

         calculateStartEnd(startLine, startPos, endLine, endPos);

         //styledText.setSelectionForeground(new Color(null, 255, 255, 255));
         //styledText.setSelectionBackground(new Color(null, 0, 0, 0));

         styledText.setSelection(styledText.getText().length());
         styledText.setSelection(start);
         setLineText();

         //styledText.setSelectionRange(start, end - start);
         setStyleByOffset(start, end - start, hlFg, hlBg);
         if (end > start) {
             if (highlighted) {
                 highLightedText = ""; //$NON-NLS-1$
             } else {
                 highLightedText = styledText.getText(start, end);
                 highlighted = true;
             }
             setCopyButton();
         }

         //startV.add(new Integer(start));
         //lenV.add(new Integer(end - start));

         if (bUpdate) {
             lineNo.setText(new Integer(startLine).toString());
             columnNo.setText(new Integer(startPos).toString());
         }
         //styledText.setSelectionForeground(oldFg);
         //styledText.setSelectionBackground(oldBg);
     }

     public void highlightLine(int line) {
         highlightLines(line, line);
     }

     public void highlightLines(int start, int end) {
         highlight(start, 0, end + 1, 0);
     }

     private void calculateStartEnd(int startLine, int startPos, int endLine, int endPos) {
         if (startPos < 0) {
             startPos = 0;
         }
         if (endPos < 0) {
             endPos = 0;
         }

         try {
             start = styledText.getOffsetAtLine(startLine - 1) + startPos;
         } catch (Exception e) {
             start = styledText.getCharCount();
         }
         try {
             end = styledText.getOffsetAtLine(endLine - 1) + endPos;
         } catch (Exception e1) {
             end = styledText.getCharCount();
         }
         if (start > end) {
             start = end;
         }
     }

     public StyledText getStyledText() {
         return styledText;
     }

     public void closeSearchDlgShell() {
         if (searchDlgShell != null && !searchDlgShell.isDisposed()) {
             searchDlgShell.dispose();
         }
     }
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2008 IBM Corporation and Others
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Kentarou FUKUDA - initial API and implementation
	*******************************************************************************/
	package org.eclipse.actf.visualization.ui.report.srcviewer;

	import java.io.BufferedReader;
	import java.io.File;
	import java.io.FileInputStream;
	import java.io.FileReader;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.util.Vector;

	import org.eclipse.actf.util.JapaneseEncodingDetector;
	import org.eclipse.actf.visualization.Constants;
	import org.eclipse.actf.visualization.ui.report.internal.Messages;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.StyleRange;
	import org.eclipse.swt.custom.StyledText;
	import org.eclipse.swt.dnd.Clipboard;
	import org.eclipse.swt.dnd.TextTransfer;
	import org.eclipse.swt.dnd.Transfer;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.events.MouseAdapter;
	import org.eclipse.swt.events.MouseEvent;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.layout.FillLayout;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;


	public class SrcViewer {

	private Composite parentCom;

	private Display display;

	private StyledText styledText, lineText;

	private Text lineNo, columnNo;

	int start, end;

	Color hlFg, hlBg;

	Vector<Integer> startV, lenV;
	Vector<Color> fgV, bgV;

	private static Shell searchDlgShell;

	private String highLightedText = ""; //$NON-NLS-1$

	private boolean highlighted = false;

	private Button copyButton;

	/**
	*
	*/
	public SrcViewer(Composite parent) {

	//TODO very old implimentation, use JFace SourceViewer

	parentCom = parent;
	display = parent.getDisplay();

	Composite composite = new Composite(parent, SWT.NONE);
	GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 1;
	composite.setLayout(gridLayout);


	Composite composite2 = new Composite(composite, SWT.NONE);
	gridLayout = new GridLayout();
	gridLayout.numColumns = 6;
	gridLayout.marginHeight = gridLayout.marginWidth = 0;
	gridLayout.horizontalSpacing = gridLayout.verticalSpacing = 0;
	composite2.setLayout(gridLayout);

	GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
	gridData.horizontalAlignment = GridData.FILL;
	gridData.grabExcessHorizontalSpace = true;
	composite2.setLayoutData(gridData);

	Label label = new Label(composite2, SWT.NONE);
	label.setText(Messages.getString("SrcViewer.3")); //$NON-NLS-1$
	gridData = new GridData();
	gridData.horizontalIndent = 5;
	label.setLayoutData(gridData);

	lineNo = new Text(composite2, SWT.BORDER \| SWT.RIGHT);
	gridData = new GridData();
	gridData.widthHint = 70;
	lineNo.setLayoutData(gridData);
	lineNo.addKeyListener(new KeyAdapter() {
	public void keyPressed(KeyEvent arg0) {
	if (arg0.stateMask == SWT.CTRL && (arg0.keyCode == 'f' \|\| arg0.keyCode == 'F')) {
	openSearchDialog();
	}
	}

	public void keyReleased(KeyEvent arg0) {
	if (arg0.stateMask != SWT.NONE) {
	return;
	}
	try {
	clearHighlight(false);
	int line = Integer.parseInt(lineNo.getText());
	int lineCnt = styledText.getLineCount();
	if (line < 1) {
	line = 1;
	lineNo.setText(String.valueOf(line));
	} else if (line > lineCnt) {
	line = lineCnt;
	lineNo.setText(String.valueOf(line));
	}
	columnNo.setText("0"); //$NON-NLS-1$
	highlight(line, 0, line + 1, 0, false);

	} catch (NumberFormatException e) {
	lineNo.setText(""); //$NON-NLS-1$
	}

	}
	});

	label = new Label(composite2, SWT.NONE);
	label.setText(Messages.getString("SrcViewer.6")); //$NON-NLS-1$
	gridData = new GridData();
	gridData.horizontalIndent = 10;
	label.setLayoutData(gridData);

	columnNo = new Text(composite2, SWT.BORDER \| SWT.RIGHT);
	gridData = new GridData();
	gridData.widthHint = 70;
	columnNo.setLayoutData(gridData);
	columnNo.addKeyListener(new KeyAdapter() {
	public void keyPressed(KeyEvent arg0) {
	if (arg0.stateMask == SWT.CTRL && (arg0.keyCode == 'f' \|\| arg0.keyCode == 'F')) {
	openSearchDialog();
	}
	}

	public void keyReleased(KeyEvent arg0) {
	if (arg0.stateMask != SWT.NONE) {
	return;
	}

	try {
	clearHighlight(false);
	int line = Integer.parseInt(lineNo.getText());
	int colCnt;
	if (line < styledText.getLineCount()) {
	colCnt = styledText.getOffsetAtLine(line) - styledText.getOffsetAtLine(line - 1) - 1;
	} else {
	colCnt = styledText.getCharCount() - styledText.getOffsetAtLine(line - 1);

	}
	int column = Integer.parseInt(columnNo.getText());
	if (column < 0) {
	column = 0;
	columnNo.setText(String.valueOf(column));
	} else if (column >= colCnt) {
	column = colCnt;
	columnNo.setText(String.valueOf(column));
	}
	highlight(line, column, line + 1, 0, false);

	} catch (NumberFormatException e) {
	columnNo.setText(""); //$NON-NLS-1$
	}

	}
	});

	Button searchButton = new Button(composite2, SWT.PUSH);
	searchButton.setText(Messages.getString("SrcViewer.8")); //$NON-NLS-1$
	gridData = new GridData();
	gridData.horizontalIndent = 20;
	searchButton.setLayoutData(gridData);
	searchButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent arg0) {
	openSearchDialog();
	}
	});

	copyButton = new Button(composite2, SWT.PUSH);
	copyButton.setText(Messages.getString("SrcViewer.9")); //$NON-NLS-1$
	gridData = new GridData();
	gridData.horizontalIndent = 10;
	copyButton.setLayoutData(gridData);
	copyButton.setEnabled(false);
	copyButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent arg0) {
	copyToClipBoard();
	}
	});

	Composite composite3 = new Composite(composite, SWT.NONE);
	gridLayout = new GridLayout();
	gridLayout.numColumns = 2;
	composite3.setLayout(gridLayout);

	gridData = new GridData(GridData.FILL_BOTH);
	gridData.horizontalAlignment = GridData.FILL;
	gridData.grabExcessHorizontalSpace = true;
	gridData.verticalAlignment = GridData.FILL;
	gridData.grabExcessVerticalSpace = true;
	composite3.setLayoutData(gridData);

	lineText = new StyledText(composite3, SWT.NONE);
	gridData = new GridData(GridData.VERTICAL_ALIGN_FILL);
	gridData.widthHint = 32;
	//gridData.horizontalAlignment=GridData.FILL;
	gridData.grabExcessVerticalSpace = true;
	lineText.setLayoutData(gridData);
	lineText.setEditable(false);

	styledText = new StyledText(composite3, SWT.BORDER \| SWT.H_SCROLL \| SWT.V_SCROLL);
	gridData = new GridData(GridData.FILL_BOTH);
	gridData.horizontalAlignment = GridData.FILL;
	gridData.grabExcessHorizontalSpace = true;
	gridData.verticalAlignment = GridData.FILL;
	gridData.grabExcessVerticalSpace = true;
	styledText.setLayoutData(gridData);

	styledText.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent arg0) {
	getSelectionLineCol();
	setCopyButton();
	}
	});

	styledText.addMouseListener(new MouseAdapter() {
	public void mouseDown(MouseEvent arg0) {
	getSelectionLineCol();
	}
	});

	styledText.setKeyBinding('C' \| SWT.MOD1, SWT.NULL);
	styledText.setKeyBinding('X' \| SWT.MOD1, SWT.NULL);

	styledText.addKeyListener(new KeyAdapter() {
	public void keyPressed(KeyEvent arg0) {
	if (arg0.keyCode == SWT.PAGE_DOWN \|\| arg0.keyCode == SWT.PAGE_UP \|\| arg0.keyCode == SWT.HOME
	\|\| arg0.keyCode == SWT.END \|\| arg0.keyCode == SWT.ARROW_DOWN \|\| arg0.keyCode == SWT.ARROW_UP
	\|\| arg0.keyCode == SWT.ARROW_LEFT \|\| arg0.keyCode == SWT.ARROW_RIGHT) {
	getSelectionLineCol();
	setLineText();
	} else if (arg0.stateMask == SWT.CTRL) {
	if (arg0.keyCode == 'f' \|\| arg0.keyCode == 'F') {
	openSearchDialog();
	} else if (arg0.keyCode == 'c' \|\| arg0.keyCode == 'C') {
	copyToClipBoard();
	}
	}
	}
	});

	styledText.getVerticalBar().addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent arg0) {
	setLineText();
	}
	});

	parentCom.addKeyListener(new KeyAdapter() {
	public void keyPressed(KeyEvent arg0) {
	if (arg0.stateMask == SWT.CTRL) {
	if (arg0.keyCode == 'f' \|\| arg0.keyCode == 'F') {
	openSearchDialog();
	} else if (arg0.keyCode == 'c' \|\| arg0.keyCode == 'C') {
	copyToClipBoard();
	}
	}
	}
	});

	hlFg = styledText.getSelectionForeground();
	hlBg = styledText.getSelectionBackground();

	startV = new Vector<Integer>();
	lenV = new Vector<Integer>();
	fgV = new Vector<Color>();
	bgV = new Vector<Color>();
	}

	private void setCopyButton() {
	String selText = styledText.getSelectionText();
	if (selText.equals("") && highLightedText.equals("") //$NON-NLS-1$ //$NON-NLS-2$
	\|\| !selText.equals("") && highlighted) { //$NON-NLS-1$
	copyButton.setEnabled(false);
	} else {
	copyButton.setEnabled(true);
	}
	}

	private void copyToClipBoard() {
	if (!copyButton.getEnabled()) {
	return;
	}

	String strText;
	if (!highLightedText.equals("")) { //$NON-NLS-1$
	strText = highLightedText;
	} else {
	strText = styledText.getSelectionText();
	}

	Clipboard clipboard = new Clipboard(display);
	clipboard.setContents(new Object[] { strText }, new Transfer[] { TextTransfer.getInstance() });
	}

	private void openSearchDialog() {
	if (searchDlgShell == null \|\| searchDlgShell.isDisposed()) {
	searchDlgShell = new Shell(parentCom.getShell(), SWT.DIALOG_TRIM \| SWT.PRIMARY_MODAL);
	searchDlgShell.setSize(600, 170);
	searchDlgShell.setLayout(new FillLayout());
	new DialogTextSearch(searchDlgShell, this);
	searchDlgShell.open();

	} else {
	searchDlgShell.forceActive();
	}
	}

	private void setLineText() {
	StringBuffer strBuf = new StringBuffer();
	int len = lineText.getBounds().height / styledText.getLineHeight();
	int top = styledText.getTopIndex();
	for (int i = 0; i < len; i++) {
	strBuf.append(String.valueOf(top + i + 1) + "\r\n"); //$NON-NLS-1$
	}
	lineText.setText(strBuf.toString());
	styledText.setTopIndex(top);
	}

	public void setHighlightColor(Color hlFg, Color hlBg) {
	this.hlFg = hlFg;
	this.hlBg = hlBg;
	}

	public void getSelectionLineCol() {
	int pos = styledText.getSelectionRange().x;
	int line = styledText.getLineAtOffset(pos) + 1;// 1 base
	lineNo.setText(new Integer(line).toString());
	columnNo.setText(new Integer(pos - styledText.getOffsetAtLine(line - 1)).toString());

	}

	public void openFile(File target) {
	styledText.setText(""); //$NON-NLS-1$
	//TODO check
	try {
	String encoding = Constants.DEFAULT_ENCODING;

	JapaneseEncodingDetector JED = null;

	InputStreamReader isr = null;
	InputStream is = new FileInputStream(target);
	try {
	JED = new JapaneseEncodingDetector(is);
	encoding = JED.detect();
	isr = new InputStreamReader(JED.getInputStream(), encoding);
	} catch (Exception e2) {
	//e2.printStackTrace();
	}

	BufferedReader br = null;
	if (isr != null) {
	br = new BufferedReader(isr);
	} else {
	br = new BufferedReader(new FileReader(target));
	}
	String line = new String();
	try {
	while ((line = br.readLine()) != null) {
	styledText.append(line + "\n"); //$NON-NLS-1$
	}
	} catch (Exception e) {
	try {
	isr = new InputStreamReader(JED.getInputStream(), "MS932"); //$NON-NLS-1$
	styledText.setText(""); //$NON-NLS-1$
	br = new BufferedReader(isr);
	while ((line = br.readLine()) != null) {
	styledText.append(line + "\n"); //$NON-NLS-1$
	}
	} catch (Exception e2) {
	styledText.setText(Messages.getString("SrcViewer.0") + target.getName()); //$NON-NLS-1$
	}
	}
	is.close();
	br.close();
	isr.close();
	} catch (Exception e) {
	//e.printStackTrace();
	}

	setLineText();
	initializeColor();
	}

	public void setText(String target) {
	styledText.setText(target);
	setLineText();
	initializeColor();
	}

	private void initializeColor() {
	startV.clear();
	lenV.clear();
	fgV.clear();
	bgV.clear();

	lineNo.setText(""); //$NON-NLS-1$
	columnNo.setText(""); //$NON-NLS-1$
	}

	public void selectByOffset(int start, int len) {
	clearHighlight();
	styledText.setSelection(start, start + len);
	getSelectionLineCol();
	setLineText();
	}

	private void setStyleByOffset(int start, int len, Color fgcolor, Color bgcolor) {
	StyleRange styleRange = new StyleRange();
	styleRange.start = start;
	styleRange.length = len;
	styleRange.foreground = fgcolor;
	styleRange.background = bgcolor;
	styledText.setStyleRange(styleRange);
	}

	public void clearColor() {
	styledText.setStyleRange(null);
	initializeColor();
	}

	public void setColor(int startLine, int startPos, int endLine, int endPos, Color fgcolor, Color bgcolor) {
	calculateStartEnd(startLine, startPos, endLine, endPos);
	setStyleByOffset(start, end - start, fgcolor, bgcolor);
	startV.add(new Integer(start));
	lenV.add(new Integer(end - start));
	fgV.add(fgcolor);
	bgV.add(bgcolor);
	}

	public void clearHighlight() {
	clearHighlight(true);
	highlighted = false;
	highLightedText = ""; //$NON-NLS-1$
	setCopyButton();
	}

	private void clearHighlight(boolean bUpdate) {

	styledText.setStyleRange(null);
	for (int i = 0; i < startV.size(); i++) {
	StyleRange styleRange = new StyleRange();
	styleRange.start = ((Integer) startV.get(i)).intValue();
	styleRange.length = ((Integer) lenV.get(i)).intValue();
	styleRange.foreground = fgV.get(i);
	styleRange.background = bgV.get(i);
	styledText.setStyleRange(styleRange);
	}

	if (bUpdate) {
	lineNo.setText(""); //$NON-NLS-1$
	columnNo.setText(""); //$NON-NLS-1$
	}

	}

	public void highlight(int startLine, int startPos, int endLine, int endPos) {
	highlight(startLine, startPos, endLine, endPos, true);
	}

	private void highlight(int startLine, int startPos, int endLine, int endPos, boolean bUpdate) {
	//Color oldFg=styledText.getSelectionForeground();
	//Color oldBg=styledText.getSelectionBackground();

	calculateStartEnd(startLine, startPos, endLine, endPos);

	//styledText.setSelectionForeground(new Color(null, 255, 255, 255));
	//styledText.setSelectionBackground(new Color(null, 0, 0, 0));

	styledText.setSelection(styledText.getText().length());
	styledText.setSelection(start);
	setLineText();

	//styledText.setSelectionRange(start, end - start);
	setStyleByOffset(start, end - start, hlFg, hlBg);
	if (end > start) {
	if (highlighted) {
	highLightedText = ""; //$NON-NLS-1$
	} else {
	highLightedText = styledText.getText(start, end);
	highlighted = true;
	}
	setCopyButton();
	}

	//startV.add(new Integer(start));
	//lenV.add(new Integer(end - start));

	if (bUpdate) {
	lineNo.setText(new Integer(startLine).toString());
	columnNo.setText(new Integer(startPos).toString());
	}
	//styledText.setSelectionForeground(oldFg);
	//styledText.setSelectionBackground(oldBg);
	}

	public void highlightLine(int line) {
	highlightLines(line, line);
	}

	public void highlightLines(int start, int end) {
	highlight(start, 0, end + 1, 0);
	}

	private void calculateStartEnd(int startLine, int startPos, int endLine, int endPos) {
	if (startPos < 0) {
	startPos = 0;
	}
	if (endPos < 0) {
	endPos = 0;
	}

	try {
	start = styledText.getOffsetAtLine(startLine - 1) + startPos;
	} catch (Exception e) {
	start = styledText.getCharCount();
	}
	try {
	end = styledText.getOffsetAtLine(endLine - 1) + endPos;
	} catch (Exception e1) {
	end = styledText.getCharCount();
	}
	if (start > end) {
	start = end;
	}
	}

	public StyledText getStyledText() {
	return styledText;
	}

	public void closeSearchDlgShell() {
	if (searchDlgShell != null && !searchDlgShell.isDisposed()) {
	searchDlgShell.dispose();
	}
	}
	}