Java tutorial
package com.intuit.tank.tools.debugger; /* * #%L * Intuit Tank Agent Debugger * %% * Copyright (C) 2011 - 2015 Intuit Inc. * %% * 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 * #L% */ import java.awt.Dimension; import java.awt.FontMetrics; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.Insets; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JComboBox; import javax.swing.JDialog; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.border.TitledBorder; import org.apache.commons.lang.StringUtils; import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; public class FindReplaceDialog extends JDialog implements ActionListener { private static final long serialVersionUID = 1L; public enum DialogType { SEARCH, // Defines a search only dialog REPLACE // Defines a search and replace dialog } // Private declarations private AgentDebuggerFrame parent; private JComboBox cbSearch; private JComboBox cbReplace; private JTextField tfSearchEditor; private JTextField tfReplaceEditor; private JButton btnFind; private JButton btnReplace; private JButton btnReplaceAll; private JButton btnCancel; private JCheckBox checkboxMatchCase; private JCheckBox checkboxRegexp; private JCheckBox checkboxWrap; private int currentLine; private int initialLine; private int initialRunningStep; /** * Constructs a new find dialog according to the specified type of dialog requested. The dialog can be either a FIND * dialog, either a REPLACE dialog. In both cases, components displayed remain the sames, but the ones specific to * replace feature are grayed out. * * @param parent * The window holder * @param type * The type of the dialog: FindReplace.FIND or FindReplace.REPLACE * @param modal * Displays dialog as a modal window if true */ public FindReplaceDialog(AgentDebuggerFrame parent, DialogType type) { super(parent, type == DialogType.REPLACE ? "Replace" : "Find", true); this.parent = parent; cbSearch = new JComboBox(); cbSearch.setEditable(true); cbReplace = new JComboBox(); cbReplace.setEditable(true); KeyHandler handler = new KeyHandler(); tfSearchEditor = (JTextField) cbSearch.getEditor().getEditorComponent(); tfSearchEditor.addKeyListener(handler); tfReplaceEditor = (JTextField) cbReplace.getEditor().getEditorComponent(); tfReplaceEditor.addKeyListener(handler); GridBagLayout gridbag = new GridBagLayout(); GridBagConstraints constraints = new GridBagConstraints(); getContentPane().setLayout(gridbag); ((JPanel) getContentPane()).setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4)); int gridX = 0; int gridY = 0; JLabel findLabel = new JLabel("Find"); buildConstraints(constraints, gridX, gridY, 1, 1, 0, 0); constraints.anchor = GridBagConstraints.WEST; gridbag.setConstraints(findLabel, constraints); getContentPane().add(findLabel); gridX++; buildConstraints(constraints, gridX, gridY, 1, 1, 100, 0); constraints.fill = GridBagConstraints.HORIZONTAL; constraints.anchor = GridBagConstraints.CENTER; gridbag.setConstraints(cbSearch, constraints); getContentPane().add(cbSearch); gridX++; btnFind = new JButton("Find"); btnFind.setToolTipText("Find text in scripts"); btnFind.setMnemonic('F'); btnFind.addActionListener(this); buildConstraints(constraints, gridX, gridY, 1, 1, 0, 0); constraints.anchor = GridBagConstraints.CENTER; gridbag.setConstraints(btnFind, constraints); getContentPane().add(btnFind); getRootPane().setDefaultButton(btnFind); gridX++; btnCancel = new JButton("Cancel"); btnCancel.setMnemonic('C'); btnCancel.addActionListener(this); buildConstraints(constraints, gridX, gridY, 1, 1, 0, 0); constraints.anchor = GridBagConstraints.CENTER; gridbag.setConstraints(btnCancel, constraints); getContentPane().add(btnCancel); gridY++; gridX = 0; if (type == DialogType.REPLACE) { JLabel replaceLabel = new JLabel("Replace"); buildConstraints(constraints, gridX, gridY, 1, 1, 0, 0); constraints.anchor = GridBagConstraints.WEST; gridbag.setConstraints(replaceLabel, constraints); getContentPane().add(replaceLabel); gridX++; buildConstraints(constraints, gridX, gridY, 1, 1, 100, 0); constraints.fill = GridBagConstraints.HORIZONTAL; constraints.anchor = GridBagConstraints.CENTER; gridbag.setConstraints(cbReplace, constraints); getContentPane().add(cbReplace); gridX++; btnReplace = new JButton("Replace"); btnReplace.setToolTipText("REplace in script"); btnReplace.setMnemonic('R'); btnReplace.addActionListener(this); buildConstraints(constraints, gridX, gridY, 1, 1, 0, 0); constraints.anchor = GridBagConstraints.CENTER; gridbag.setConstraints(btnReplace, constraints); getContentPane().add(btnReplace); gridX++; btnReplaceAll = new JButton("Replace All"); btnReplaceAll.addActionListener(this); buildConstraints(constraints, gridX, gridY, 1, 1, 0, 0); constraints.anchor = GridBagConstraints.CENTER; gridbag.setConstraints(btnReplaceAll, constraints); getContentPane().add(btnReplaceAll); btnReplace.addKeyListener(handler); btnReplaceAll.addKeyListener(handler); gridY++; gridX = 0; } TitledBorder border = new TitledBorder("Options"); JPanel panel = new JPanel(new GridLayout(1, 4)); panel.setBorder(border); checkboxWrap = new JCheckBox("Wrap Search"); panel.add(checkboxWrap); checkboxMatchCase = new JCheckBox("Case sensitive"); panel.add(checkboxMatchCase); checkboxRegexp = new JCheckBox("Regular expressions"); panel.add(checkboxRegexp); buildConstraints(constraints, gridX, gridY, 4, 1, 100, 100); constraints.anchor = GridBagConstraints.WEST; gridbag.setConstraints(panel, constraints); getContentPane().add(panel); FontMetrics fm = getFontMetrics(getFont()); cbSearch.setPreferredSize(new Dimension(18 * fm.charWidth('m'), (int) cbSearch.getPreferredSize().height)); cbReplace .setPreferredSize(new Dimension(18 * fm.charWidth('m'), (int) cbReplace.getPreferredSize().height)); pack(); // setResizable(false); WindowUtil.centerOnParent(this); // patch by MJB 8/1/2002 btnFind.addKeyListener(handler); btnCancel.addKeyListener(handler); checkboxMatchCase.addKeyListener(handler); checkboxRegexp.addKeyListener(handler); } @Override public void setVisible(boolean b) { tfSearchEditor.setText(""); if (tfReplaceEditor != null) { tfReplaceEditor.setText(""); } RSyntaxTextArea ta = parent.getScriptEditorTA(); if (b) { currentLine = ta.getCaretLineNumber(); initialRunningStep = parent.getCurrentRunningStep(); initialLine = ta.getCaretLineNumber(); tfSearchEditor.requestFocusInWindow(); } else { // if (initialRunningStep >= 0 && initialRunningStep < ta.getLineCount() -1) { // ta.setActiveLineRange(initialRunningStep + 1, initialRunningStep + 1); // } else { // ta.setActiveLineRange(-1, -1); // } // parent.fireStepChanged(initialRunningStep); // ta.setCurrentLine(initialLine); // parent.repaint(); } super.setVisible(b); } // Catch the action performed and then look for its source // According to the source object we call appropriate methods public void actionPerformed(ActionEvent evt) { Object source = evt.getSource(); if (source == btnCancel) { setVisible(false); } else if (source == btnFind) { doFind(); } else if (source == btnReplace) { doReplace(); } else if (source == btnReplaceAll) { doReplaceAll(); } } // replace all the occurences of search pattern by // the replace one. If 'All Files' is checked, this is // done in all the opened file in the component 'parent' private void doReplaceAll() { addReplaceHistory(); addSearchHistory(); // try { // JextTextArea textArea = parent.getTextArea(); // setSettings(); // if (Search.replaceAll(textArea, 0, textArea.getLength()) == 0) { // Utilities.beep(); // } // // } catch (Exception e) { // // nothing // } finally { // Utilities.setCursorOnWait(this, false); // } } // replaces specified search pattern by the replace one. // this is done only if a match is found. private void doReplace() { addReplaceHistory(); addSearchHistory(); // // try { // // JextTextArea textArea = parent.getTextArea(); // setSettings(); // // if (!Search.replace(textArea)) // { // Utilities.beep(); // } else // find(textArea); // // } catch (Exception e) { // // nothing // } finally { // Utilities.setCursorOnWait(this, false); // } } // finds the next occurence of current search pattern // the search is done in current text area private void doFind() { addSearchHistory(); find(parent.getScriptEditorTA()); } // finds the next occurence of the search pattern in a // a given text area. if match is not found, and if user // don't ask to start over from beginning, then the method // calls itself by specifying next opened text area. private void find(RSyntaxTextArea textArea) { try { int offset = currentLine < textArea.getLineCount() ? textArea.getLineStartOffset(currentLine) : 0; String searchTerm = tfSearchEditor.getText(); String text = textArea.getText(); int foundIndex = -1; int flags = (checkboxRegexp.isSelected() ? 0 : Pattern.LITERAL) | (checkboxMatchCase.isSelected() ? 0 : Pattern.CASE_INSENSITIVE); Pattern p = Pattern.compile(searchTerm, flags); Matcher matcher = p.matcher(text); matcher.region(offset, text.length()); if (matcher.find()) { foundIndex = matcher.start(); } else if (checkboxWrap.isSelected() && offset > 0) { matcher.region(0, offset); if (matcher.find()) { foundIndex = matcher.start(); } } if (foundIndex != -1) { int lineOfOffset = textArea.getLineOfOffset(foundIndex); // textArea.setActiveLineRange(lineOfOffset, lineOfOffset); textArea.setCurrentLine(lineOfOffset); // textArea.setCaretPosition(foundIndex + searchTerm.length()); parent.repaint(); parent.fireStepChanged(lineOfOffset); currentLine = lineOfOffset + 1; } else { JOptionPane.showMessageDialog(parent, "Search String not found."); } } catch (Exception e) { e.printStackTrace(); } } /** * adds current search pattern in the search history list */ private void addSearchHistory() { addSearchHistory(tfSearchEditor.getText()); } /** * adds a pattern in the search history list * * @param c * the pattern to be added */ private void addSearchHistory(String c) { if (StringUtils.isBlank(c)) { return; } for (int i = 0; i < cbSearch.getItemCount(); i++) { if (((String) cbSearch.getItemAt(i)).equals(c)) { return; } } cbSearch.insertItemAt(c, 0); if (cbSearch.getItemCount() > 25) { for (int i = 25; i < cbSearch.getItemCount();) cbSearch.removeItemAt(i); } tfSearchEditor.setText((String) cbSearch.getItemAt(0)); } /** * adds current replace pattern in the replace history list */ private void addReplaceHistory() { addReplaceHistory(tfReplaceEditor.getText()); } /** * adds a pattern in the replace history list * * @param c * the pattern to be added */ private void addReplaceHistory(String c) { if (StringUtils.isBlank(c)) { return; } for (int i = 0; i < cbReplace.getItemCount(); i++) { if (((String) cbReplace.getItemAt(i)).equals(c)) { return; } } cbReplace.insertItemAt(c, 0); if (cbReplace.getItemCount() > 25) { for (int i = 25; i < cbReplace.getItemCount();) cbReplace.removeItemAt(i); } tfReplaceEditor.setText((String) cbReplace.getItemAt(0)); } private void buildConstraints(GridBagConstraints agbc, int agx, int agy, int agw, int agh, int awx, int awy) { agbc.gridx = agx; agbc.gridy = agy; agbc.gridwidth = agw; agbc.gridheight = agh; agbc.weightx = awx; agbc.weighty = awy; agbc.insets = new Insets(2, 2, 2, 2); } class KeyHandler extends KeyAdapter { public void keyPressed(KeyEvent evt) { switch (evt.getKeyCode()) { case KeyEvent.VK_ENTER: if (evt.getSource() == tfSearchEditor) { doFind(); } else if (evt.getSource() == tfReplaceEditor) { doReplace(); } break; case KeyEvent.VK_ESCAPE: setVisible(false); break; } } } }