source: trunk/examples/tools/regexp/regexpdialog.cpp

Last change on this file was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 7.3 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41#include <QtGui>
42
43#include "regexpdialog.h"
44
45RegExpDialog::RegExpDialog(QWidget *parent)
46 : QDialog(parent)
47{
48 patternComboBox = new QComboBox;
49 patternComboBox->setEditable(true);
50 patternComboBox->setSizePolicy(QSizePolicy::Expanding,
51 QSizePolicy::Preferred);
52
53 patternLabel = new QLabel(tr("&Pattern:"));
54 patternLabel->setBuddy(patternComboBox);
55
56 escapedPatternLineEdit = new QLineEdit;
57 escapedPatternLineEdit->setReadOnly(true);
58 QPalette palette = escapedPatternLineEdit->palette();
59 palette.setBrush(QPalette::Base,
60 palette.brush(QPalette::Disabled, QPalette::Base));
61 escapedPatternLineEdit->setPalette(palette);
62
63 escapedPatternLabel = new QLabel(tr("&Escaped Pattern:"));
64 escapedPatternLabel->setBuddy(escapedPatternLineEdit);
65
66 syntaxComboBox = new QComboBox;
67 syntaxComboBox->addItem(tr("Regular expression v1"), QRegExp::RegExp);
68 syntaxComboBox->addItem(tr("Regular expression v2"), QRegExp::RegExp2);
69 syntaxComboBox->addItem(tr("Wildcard"), QRegExp::Wildcard);
70 syntaxComboBox->addItem(tr("Fixed string"), QRegExp::FixedString);
71 syntaxComboBox->addItem(tr("W3C Xml Schema 1.1"), QRegExp::W3CXmlSchema11);
72
73 syntaxLabel = new QLabel(tr("&Pattern Syntax:"));
74 syntaxLabel->setBuddy(syntaxComboBox);
75
76 textComboBox = new QComboBox;
77 textComboBox->setEditable(true);
78 textComboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
79
80 textLabel = new QLabel(tr("&Text:"));
81 textLabel->setBuddy(textComboBox);
82
83 caseSensitiveCheckBox = new QCheckBox(tr("Case &Sensitive"));
84 caseSensitiveCheckBox->setChecked(true);
85 minimalCheckBox = new QCheckBox(tr("&Minimal"));
86
87 indexLabel = new QLabel(tr("Index of Match:"));
88 indexEdit = new QLineEdit;
89 indexEdit->setReadOnly(true);
90
91 matchedLengthLabel = new QLabel(tr("Matched Length:"));
92 matchedLengthEdit = new QLineEdit;
93 matchedLengthEdit->setReadOnly(true);
94
95 for (int i = 0; i < MaxCaptures; ++i) {
96 captureLabels[i] = new QLabel(tr("Capture %1:").arg(i));
97 captureEdits[i] = new QLineEdit;
98 captureEdits[i]->setReadOnly(true);
99 }
100 captureLabels[0]->setText(tr("Match:"));
101
102 QHBoxLayout *checkBoxLayout = new QHBoxLayout;
103 checkBoxLayout->addWidget(caseSensitiveCheckBox);
104 checkBoxLayout->addWidget(minimalCheckBox);
105 checkBoxLayout->addStretch(1);
106
107 QGridLayout *mainLayout = new QGridLayout;
108 mainLayout->addWidget(patternLabel, 0, 0);
109 mainLayout->addWidget(patternComboBox, 0, 1);
110 mainLayout->addWidget(escapedPatternLabel, 1, 0);
111 mainLayout->addWidget(escapedPatternLineEdit, 1, 1);
112 mainLayout->addWidget(syntaxLabel, 2, 0);
113 mainLayout->addWidget(syntaxComboBox, 2, 1);
114 mainLayout->addLayout(checkBoxLayout, 3, 0, 1, 2);
115 mainLayout->addWidget(textLabel, 4, 0);
116 mainLayout->addWidget(textComboBox, 4, 1);
117 mainLayout->addWidget(indexLabel, 5, 0);
118 mainLayout->addWidget(indexEdit, 5, 1);
119 mainLayout->addWidget(matchedLengthLabel, 6, 0);
120 mainLayout->addWidget(matchedLengthEdit, 6, 1);
121
122 for (int j = 0; j < MaxCaptures; ++j) {
123 mainLayout->addWidget(captureLabels[j], 7 + j, 0);
124 mainLayout->addWidget(captureEdits[j], 7 + j, 1);
125 }
126 setLayout(mainLayout);
127
128 connect(patternComboBox, SIGNAL(editTextChanged(QString)),
129 this, SLOT(refresh()));
130 connect(textComboBox, SIGNAL(editTextChanged(QString)),
131 this, SLOT(refresh()));
132 connect(caseSensitiveCheckBox, SIGNAL(toggled(bool)),
133 this, SLOT(refresh()));
134 connect(minimalCheckBox, SIGNAL(toggled(bool)), this, SLOT(refresh()));
135 connect(syntaxComboBox, SIGNAL(currentIndexChanged(int)),
136 this, SLOT(refresh()));
137
138 patternComboBox->addItem(tr("[A-Za-z_]+([A-Za-z_0-9]*)"));
139 textComboBox->addItem(tr("(10 + delta4) * 32"));
140
141 setWindowTitle(tr("RegExp"));
142 setFixedHeight(sizeHint().height());
143 refresh();
144}
145
146void RegExpDialog::refresh()
147{
148 setUpdatesEnabled(false);
149
150 QString pattern = patternComboBox->currentText();
151 QString text = textComboBox->currentText();
152
153 QString escaped = pattern;
154 escaped.replace("\\", "\\\\");
155 escaped.replace("\"", "\\\"");
156 escaped.prepend("\"");
157 escaped.append("\"");
158 escapedPatternLineEdit->setText(escaped);
159
160 QRegExp rx(pattern);
161 Qt::CaseSensitivity cs = Qt::CaseInsensitive;
162 if (caseSensitiveCheckBox->isChecked())
163 cs = Qt::CaseSensitive;
164 rx.setCaseSensitivity(cs);
165 rx.setMinimal(minimalCheckBox->isChecked());
166 QRegExp::PatternSyntax syntax = QRegExp::PatternSyntax(
167 syntaxComboBox->itemData(syntaxComboBox->currentIndex()).toInt());
168 rx.setPatternSyntax(syntax);
169
170 QPalette palette = patternComboBox->palette();
171 if (rx.isValid()) {
172 palette.setColor(QPalette::Text,
173 textComboBox->palette().color(QPalette::Text));
174 } else {
175 palette.setColor(QPalette::Text, Qt::red);
176 }
177 patternComboBox->setPalette(palette);
178
179 indexEdit->setText(QString::number(rx.indexIn(text)));
180 matchedLengthEdit->setText(QString::number(rx.matchedLength()));
181 for (int i = 0; i < MaxCaptures; ++i) {
182 captureLabels[i]->setEnabled(i <= rx.captureCount());
183 captureEdits[i]->setEnabled(i <= rx.captureCount());
184 captureEdits[i]->setText(rx.cap(i));
185 }
186
187 setUpdatesEnabled(true);
188}
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