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@ -6,17 +6,25 @@
@@ -6,17 +6,25 @@
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#include <QMessageBox> |
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#include <QPushButton> |
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#include <QKeyEvent> |
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AskPassphraseDialog::AskPassphraseDialog(Mode mode, QWidget *parent) : |
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QDialog(parent), |
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ui(new Ui::AskPassphraseDialog), |
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mode(mode), |
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model(0) |
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model(0), |
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fCapsLock(false) |
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{ |
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ui->setupUi(this); |
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ui->passEdit1->setMaxLength(MAX_PASSPHRASE_SIZE); |
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ui->passEdit2->setMaxLength(MAX_PASSPHRASE_SIZE); |
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ui->passEdit3->setMaxLength(MAX_PASSPHRASE_SIZE); |
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// Setup Caps Lock detection.
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ui->passEdit1->installEventFilter(this); |
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ui->passEdit2->installEventFilter(this); |
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ui->passEdit3->installEventFilter(this); |
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ui->capsLabel->clear(); |
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switch(mode) |
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{ |
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@ -188,3 +196,46 @@ void AskPassphraseDialog::textChanged()
@@ -188,3 +196,46 @@ void AskPassphraseDialog::textChanged()
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} |
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ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(acceptable); |
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} |
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bool AskPassphraseDialog::event(QEvent *event) |
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{ |
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// Detect Caps Lock key press.
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if (event->type() == QEvent::KeyPress) { |
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QKeyEvent *ke = static_cast<QKeyEvent *>(event); |
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if (ke->key() == Qt::Key_CapsLock) { |
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fCapsLock = !fCapsLock; |
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} |
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if (fCapsLock) { |
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ui->capsLabel->setText(tr("Warning: The Caps Lock key is on.")); |
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} else { |
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ui->capsLabel->clear(); |
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} |
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} |
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return QWidget::event(event); |
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} |
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bool AskPassphraseDialog::eventFilter(QObject *, QEvent *event) |
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{ |
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/* Detect Caps Lock.
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* There is no good OS-independent way to check a key state in Qt, but we |
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* can detect Caps Lock by checking for the following condition: |
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* Shift key is down and the result is a lower case character, or |
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* Shift key is not down and the result is an upper case character. |
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*/ |
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if (event->type() == QEvent::KeyPress) { |
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QKeyEvent *ke = static_cast<QKeyEvent *>(event); |
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QString str = ke->text(); |
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if (str.length() != 0) { |
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const QChar *psz = str.unicode(); |
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bool fShift = (ke->modifiers() & Qt::ShiftModifier) != 0; |
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if ((fShift && psz->isLower()) || (!fShift && psz->isUpper())) { |
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fCapsLock = true; |
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ui->capsLabel->setText(tr("Warning: The Caps Lock key is on.")); |
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} else if (psz->isLetter()) { |
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fCapsLock = false; |
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ui->capsLabel->clear(); |
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} |
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} |
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} |
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return false; |
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} |
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