source: trunk/examples/tools/regexp/regexpdialog.cpp@ 44

Last change on this file since 44 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 7.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the examples of the Qt Toolkit.
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15** GNU Lesser General Public License Usage
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19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
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28** GNU General Public License Usage
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30** General Public License version 3.0 as published by the Free Software
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40****************************************************************************/
41
42#include <QtGui>
43
44#include "regexpdialog.h"
45
46RegExpDialog::RegExpDialog(QWidget *parent)
47 : QDialog(parent)
48{
49 patternComboBox = new QComboBox;
50 patternComboBox->setEditable(true);
51 patternComboBox->setSizePolicy(QSizePolicy::Expanding,
52 QSizePolicy::Preferred);
53
54 patternLabel = new QLabel(tr("&Pattern:"));
55 patternLabel->setBuddy(patternComboBox);
56
57 escapedPatternLineEdit = new QLineEdit;
58 escapedPatternLineEdit->setReadOnly(true);
59 QPalette palette = escapedPatternLineEdit->palette();
60 palette.setBrush(QPalette::Base,
61 palette.brush(QPalette::Disabled, QPalette::Base));
62 escapedPatternLineEdit->setPalette(palette);
63
64 escapedPatternLabel = new QLabel(tr("&Escaped Pattern:"));
65 escapedPatternLabel->setBuddy(escapedPatternLineEdit);
66
67 syntaxComboBox = new QComboBox;
68 syntaxComboBox->addItem(tr("Regular expression v1"), QRegExp::RegExp);
69 syntaxComboBox->addItem(tr("Regular expression v2"), QRegExp::RegExp2);
70 syntaxComboBox->addItem(tr("Wildcard"), QRegExp::Wildcard);
71 syntaxComboBox->addItem(tr("Fixed string"), QRegExp::FixedString);
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(const QString &)),
129 this, SLOT(refresh()));
130 connect(textComboBox, SIGNAL(editTextChanged(const 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.numCaptures());
183 captureEdits[i]->setEnabled(i <= rx.numCaptures());
184 captureEdits[i]->setText(rx.cap(i));
185 }
186
187 setUpdatesEnabled(true);
188}
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