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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtUiTools>
+#include <QtGui>
+#include "textfinder.h"
+
+//! [0]
+def __init__(self, parent = None):
+ QWidget.__init__(self. parent)
+ formWidget = self.loadUiFile()
+
+//! [1]
+ self.ui_findButton = qFindChild(QPushButton, self, "findButton")
+ self.ui_textEdit = qFindChild(QTextEdit, self, "textEdit")
+ self.ui_lineEdit = qFindChild(QLineEdit, self, "lineEdit")
+//! [0] //! [1]
+
+//! [2]
+ QMetaObject.connectSlotsByName(self)
+//! [2]
+
+//! [3a]
+ self.loadTextFile()
+//! [3a]
+
+//! [3b]
+ layout = QVBoxLayout()
+ layout.addWidget(formWidget)
+ self.setLayout(layout)
+//! [3b]
+
+//! [3c]
+ self.setWindowTitle("Text Finder")
+ self.isFirstTime = True
+//! [3c]
+
+//! [4]
+def loadUiFile(self):
+ loader = QUiLoader()
+ return loader.load(":/forms/textfinder.ui", self)
+//! [4]
+
+//! [5]
+def loadTextFile(self):
+ inputFile = QFile(":/forms/input.txt")
+ inputFile.open(QIODevice.ReadOnly)
+ in = QTextStream(inputFile)
+ line = in.readAll()
+ inputFile.close()
+
+ self.ui_textEdit.append(line)
+ self.ui_textEdit.setUndoRedoEnabled(False)
+ self.ui_textEdit.setUndoRedoEnabled(True)
+//! [5]
+
+//! [6] //! [7]
+@Slot()
+def on_findButton_clicked(self):
+ searchString = self.ui_lineEdit.text()
+ document = self.ui_textEdit.document()
+
+ found = False
+
+ if not self.isFirstTime:
+ document.undo()
+
+ if not searchString:
+ QMessageBox.information(self, "Empty Search Field",
+ "The search field is empty. Please enter a word and click Find.")
+ else:
+ highlightCursor = QTextCursor(document)
+ cursor = QTextCursor(document)
+ cursor.beginEditBlock()
+//! [6]
+ plainFormat = QTextCharFormat(highlightCursor.charFormat())
+ colorFormat = QTextCharFormat(plainFormat)
+ colorFormat.setForeground(Qt.red)
+
+ while not highlightCursor.isNull() and not highlightCursor.atEnd():
+ highlightCursor = document.find(searchString, highlightCursor, QTextDocument.FindWholeWords)
+
+ if not highlightCursor.isNull():
+ found = True
+ highlightCursor.movePosition(QTextCursor.WordRight, QTextCursor.KeepAnchor)
+ highlightCursor.mergeCharFormat(colorFormat)
+//! [8]
+ cursor.endEditBlock()
+//! [7] //! [9]
+ self.isFirstTime = False
+
+ if not found:
+ QMessageBox.information(self, "Word Not Found", "Sorry, the word cannot be found.");
+//! [8] //! [9]