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regularexpression example: Add raw string literal display

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Factor out the line edit displaying the code to a class and add
another instance for displaying raw string literals.

Task-number: QTBUG-60635
Change-Id: I4614e4a56e355bad5158523c58edf784868dbf4d
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
This commit is contained in:
Friedemann Kleint 2017-12-04 09:24:56 +01:00
parent 63c7a8e725
commit f6f40014c4
2 changed files with 35 additions and 24 deletions
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57
examples/widgets/tools/regularexpression/regularexpressiondialog.cpp
View File

@ -77,6 +77,13 @@
Q_DECLARE_METATYPE(QRegularExpression::MatchType)
static QString rawStringLiteral(QString pattern)
{
pattern.prepend(QLatin1String("R\"RX("));
pattern.append(QLatin1String(")RX\""));
return pattern;
}
static QString patternToCode(QString pattern)
{
pattern.replace(QLatin1String("\\"), QLatin1String("\\\\"));
@ -173,6 +180,29 @@ void PatternLineEdit::contextMenuEvent(QContextMenuEvent *event)
menu->popup(event->globalPos());
}
class DisplayLineEdit : public QLineEdit
{
public:
explicit DisplayLineEdit(QWidget *parent = nullptr);
};
DisplayLineEdit::DisplayLineEdit(QWidget *parent) : QLineEdit(parent)
{
setReadOnly(true);
QPalette disabledPalette = palette();
disabledPalette.setBrush(QPalette::Base, disabledPalette.brush(QPalette::Disabled, QPalette::Base));
setPalette(disabledPalette);
#if QT_CONFIG(clipboard)
QAction *copyAction = new QAction(this);
copyAction->setText(RegularExpressionDialog::tr("Copy to clipboard"));
copyAction->setIcon(QIcon(QStringLiteral(":/images/copy.png")));
connect(copyAction, &QAction::triggered, this,
[this] () { QGuiApplication::clipboard()->setText(text()); });
addAction(copyAction, QLineEdit::TrailingPosition);
#endif
}
RegularExpressionDialog::RegularExpressionDialog(QWidget *parent)
: QDialog(parent)
{
@ -230,6 +260,7 @@ void RegularExpressionDialog::refresh()
offsetSpinBox->setMaximum(qMax(0, text.length() - 1));
escapedPatternLineEdit->setText(patternToCode(pattern));
rawStringLiteralLineEdit->setText(rawStringLiteral(pattern));
setTextColor(patternLineEdit, subjectTextEdit->palette().color(QPalette::Text));
matchDetailsTreeWidget->clear();
@ -322,15 +353,6 @@ void RegularExpressionDialog::refresh()
setUpdatesEnabled(true);
}
void RegularExpressionDialog::copyEscapedPatternToClipboard()
{
#if QT_CONFIG(clipboard)
QClipboard *clipboard = QGuiApplication::clipboard();
if (clipboard)
clipboard->setText(escapedPatternLineEdit->text());
#endif
}
void RegularExpressionDialog::setupUi()
{
QWidget *leftHalfContainer = setupLeftUi();
@ -363,20 +385,9 @@ QWidget *RegularExpressionDialog::setupLeftUi()
patternLineEdit->setClearButtonEnabled(true);
layout->addRow(tr("&Pattern:"), patternLineEdit);
escapedPatternLineEdit = new QLineEdit;
escapedPatternLineEdit->setReadOnly(true);
QPalette palette = escapedPatternLineEdit->palette();
palette.setBrush(QPalette::Base, palette.brush(QPalette::Disabled, QPalette::Base));
escapedPatternLineEdit->setPalette(palette);
#if QT_CONFIG(clipboard)
QAction *copyEscapedPatternAction = new QAction(this);
copyEscapedPatternAction->setText(tr("Copy to clipboard"));
copyEscapedPatternAction->setIcon(QIcon(QStringLiteral(":/images/copy.png")));
connect(copyEscapedPatternAction, &QAction::triggered, this, &RegularExpressionDialog::copyEscapedPatternToClipboard);
escapedPatternLineEdit->addAction(copyEscapedPatternAction, QLineEdit::TrailingPosition);
#endif
rawStringLiteralLineEdit = new DisplayLineEdit;
layout->addRow(tr("&Raw string literal:"), rawStringLiteralLineEdit);
escapedPatternLineEdit = new DisplayLineEdit;
layout->addRow(tr("&Escaped pattern:"), escapedPatternLineEdit);
subjectTextEdit = new QPlainTextEdit;

2
examples/widgets/tools/regularexpression/regularexpressiondialog.h
View File

@ -74,13 +74,13 @@ public:
private:
void refresh();
void copyEscapedPatternToClipboard();
void setupUi();
QWidget *setupLeftUi();
QWidget *setupRightUi();
void setResultUiEnabled(bool enabled);
QLineEdit *patternLineEdit;
QLineEdit *rawStringLiteralLineEdit;
QLineEdit *escapedPatternLineEdit;
QPlainTextEdit *subjectTextEdit;