Say hello to EncryptWidget.

src/modules/partition/CMakeLists.txt

@@ -31,11 +31,12 @@ calamares_add_plugin( partition
         core/PartitionIterator.cpp
         core/PartitionModel.cpp
         core/PartUtils.cpp
+        gui/BootInfoWidget.cpp
         gui/ChoicePage.cpp
         gui/CreatePartitionDialog.cpp
-        gui/EditExistingPartitionDialog.cpp
-        gui/BootInfoWidget.cpp
         gui/DeviceInfoWidget.cpp
+        gui/EditExistingPartitionDialog.cpp
+        gui/EncryptWidget.cpp
         gui/PartitionPage.cpp
         gui/PartitionBarsView.cpp
         gui/PartitionLabelsView.cpp
@@ -62,6 +63,7 @@ calamares_add_plugin( partition
         gui/CreatePartitionDialog.ui
         gui/CreatePartitionTableDialog.ui
         gui/EditExistingPartitionDialog.ui
+        gui/EncryptWidget.ui
         gui/PartitionPage.ui
         gui/ReplaceWidget.ui
     LINK_LIBRARIES

src/modules/partition/gui/EncryptWidget.cpp

@@ -0,0 +1,150 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2016, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "EncryptWidget.h"
+
+#include <utils/CalamaresUtilsGui.h>
+
+EncryptWidget::EncryptWidget( QWidget* parent )
+    : QWidget( parent )
+{
+    setupUi( this );
+
+    m_iconLabel->setFixedWidth( m_iconLabel->height() );
+    m_passphraseLineEdit->hide();
+    m_confirmLineEdit->hide();
+    m_iconLabel->hide();
+
+    connect( m_encryptCheckBox, &QCheckBox::stateChanged,
+             this, &EncryptWidget::onCheckBoxStateChanged );
+    connect( m_passphraseLineEdit, &QLineEdit::textEdited,
+             this, &EncryptWidget::onPassphraseEdited );
+    connect( m_confirmLineEdit, &QLineEdit::textEdited,
+             this, &EncryptWidget::onPassphraseEdited );
+
+    updateState();
+}
+
+
+EncryptWidget::State
+EncryptWidget::state() const
+{
+    return m_state;
+}
+
+
+QString
+EncryptWidget::passphrase() const
+{
+    if ( m_state == EncryptionConfirmed )
+        return m_passphraseLineEdit->text();
+    return QString();
+}
+
+
+void
+EncryptWidget::changeEvent( QEvent* e )
+{
+    QWidget::changeEvent( e );
+    switch ( e->type() )
+    {
+    case QEvent::LanguageChange:
+        retranslateUi( this );
+        break;
+    default:
+        break;
+    }
+}
+
+
+void
+EncryptWidget::updateState()
+{
+    State newState;
+    if ( m_encryptCheckBox->isChecked() )
+    {
+        if ( !m_passphraseLineEdit->text().isEmpty() &&
+             m_passphraseLineEdit->text() == m_confirmLineEdit->text() )
+        {
+            newState = EncryptionConfirmed;
+        }
+        else
+        {
+            newState = EncryptionUnconfirmed;
+        }
+    }
+    else
+    {
+        newState = EncryptionDisabled;
+    }
+
+    if ( newState != m_state )
+    {
+        m_state = newState;
+        emit stateChanged( m_state );
+    }
+}
+
+
+void
+EncryptWidget::onPassphraseEdited()
+{
+    if ( !m_iconLabel->isVisible() )
+        m_iconLabel->show();
+
+    QString p1 = m_passphraseLineEdit->text();
+    QString p2 = m_confirmLineEdit->text();
+
+    m_iconLabel->setToolTip( QString() );
+    if ( p1.isEmpty() && p2.isEmpty() )
+    {
+        m_iconLabel->clear();
+    }
+    else if ( p1 == p2 )
+    {
+        m_iconLabel->setFixedWidth( m_iconLabel->height() );
+        m_iconLabel->setPixmap( CalamaresUtils::defaultPixmap( CalamaresUtils::Yes,
+                                                               CalamaresUtils::Original,
+                                                               m_iconLabel->size() ) );
+    }
+    else
+    {
+        m_iconLabel->setFixedWidth( m_iconLabel->height() );
+        m_iconLabel->setPixmap( CalamaresUtils::defaultPixmap( CalamaresUtils::No,
+                                                               CalamaresUtils::Original,
+                                                               m_iconLabel->size() ) );
+        m_iconLabel->setToolTip( "Please enter the same passphrase in both boxes." );
+    }
+
+    updateState();
+}
+
+
+void
+EncryptWidget::onCheckBoxStateChanged( int state )
+{
+    m_passphraseLineEdit->setVisible( state );
+    m_confirmLineEdit->setVisible( state );
+    m_iconLabel->setVisible( state );
+    m_passphraseLineEdit->clear();
+    m_confirmLineEdit->clear();
+    m_iconLabel->clear();
+
+    updateState();
+}

src/modules/partition/gui/EncryptWidget.h

@@ -0,0 +1,57 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2016, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef ENCRYPTWIDGET_H
+#define ENCRYPTWIDGET_H
+
+#include "ui_EncryptWidget.h"
+
+class EncryptWidget : public QWidget, private Ui::EncryptWidget
+{
+    Q_OBJECT
+
+public:
+    enum State : unsigned short
+    {
+        EncryptionDisabled = 0,
+        EncryptionUnconfirmed,
+        EncryptionConfirmed
+    };
+
+    explicit EncryptWidget( QWidget* parent = nullptr );
+
+    State state() const;
+
+    QString passphrase() const;
+
+signals:
+    void stateChanged( State );
+
+protected:
+    void changeEvent( QEvent* e );
+
+private:
+    void updateState();
+    void onPassphraseEdited();
+    void onCheckBoxStateChanged( int state );
+
+    State m_state;
+};
+
+#endif // ENCRYPTWIDGET_H

src/modules/partition/gui/EncryptWidget.ui

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>EncryptWidget</class>
+ <widget class="QWidget" name="EncryptWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>822</width>
+    <height>59</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <item>
+    <widget class="QCheckBox" name="m_encryptCheckBox">
+     <property name="text">
+      <string>En&amp;crypt system</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLineEdit" name="m_passphraseLineEdit">
+     <property name="echoMode">
+      <enum>QLineEdit::Password</enum>
+     </property>
+     <property name="placeholderText">
+      <string>Passphrase</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLineEdit" name="m_confirmLineEdit">
+     <property name="echoMode">
+      <enum>QLineEdit::Password</enum>
+     </property>
+     <property name="placeholderText">
+      <string>Confirm passphrase</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="m_iconLabel">
+     <property name="text">
+      <string/>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignCenter</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>