New DeviceInfoWidget to educate the user.

src/modules/partition/CMakeLists.txt

@@ -35,6 +35,7 @@ calamares_add_plugin( partition
         gui/CreatePartitionDialog.cpp
         gui/EditExistingPartitionDialog.cpp
         gui/AlongsidePage.cpp
+        gui/DeviceInfoWidget.cpp
         gui/PartitionPage.cpp
         gui/PartitionPreview.cpp
         gui/PartitionSizeController.cpp

src/modules/partition/gui/DeviceInfoWidget.cpp

@@ -0,0 +1,130 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2015, 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 "DeviceInfoWidget.h"
+
+#include <utils/CalamaresUtilsGui.h>
+#include <JobQueue.h>
+#include <GlobalStorage.h>
+
+#include <QDir>
+#include <QLabel>
+#include <QHBoxLayout>
+
+DeviceInfoWidget::DeviceInfoWidget( QWidget* parent )
+    : QWidget( parent )
+    , m_bootIcon( new QLabel )
+    , m_bootLabel( new QLabel )
+    , m_ptIcon( new QLabel )
+    , m_ptLabel( new QLabel )
+{
+    QHBoxLayout* mainLayout = new QHBoxLayout;
+    setLayout( mainLayout );
+
+    CalamaresUtils::unmarginLayout( mainLayout );
+
+    mainLayout->addWidget( m_bootIcon );
+    mainLayout->addWidget( m_bootLabel );
+    mainLayout->addWidget( m_ptIcon );
+    mainLayout->addWidget( m_ptLabel );
+
+    bool isEfi = false;
+    if ( QDir( "/sys/firmware/efi/efivars" ).exists() )
+        isEfi = true;
+
+    if ( isEfi )
+        m_bootLabel->setText( "EFI " );
+    else
+        m_bootLabel->setText( "BIOS" );
+
+    QSize iconSize = QSize( CalamaresUtils::defaultFontHeight(),
+                            CalamaresUtils::defaultFontHeight() );
+
+    m_bootIcon->setMargin( 0 );
+    m_bootIcon->setFixedSize( iconSize );
+    m_bootIcon->setPixmap( CalamaresUtils::defaultPixmap( CalamaresUtils::BootEnvironment,
+                                                          CalamaresUtils::Original,
+                                                          iconSize ) );
+    m_ptIcon->setMargin( 0 );
+    m_ptIcon->setFixedSize( iconSize );
+    m_ptIcon->setPixmap( CalamaresUtils::defaultPixmap( CalamaresUtils::PartitionTable,
+                                                        CalamaresUtils::Original,
+                                                        iconSize ) );
+
+    QFontMetrics fm = QFontMetrics( QFont() );
+    m_ptLabel->setMinimumWidth( fm.boundingRect( "MSDOS" ).width() +2 );
+    m_bootLabel->setMinimumWidth( fm.boundingRect( "BIOS" ).width() +2 );
+    m_ptLabel->setAlignment( Qt::AlignCenter );
+    m_bootLabel->setAlignment( Qt::AlignCenter );
+
+    QPalette palette;
+    palette.setBrush( QPalette::Foreground, QColor( "#4D4D4D" ) ); //dark grey
+
+    m_ptLabel->setPalette( palette );
+    m_bootLabel->setPalette( palette );
+
+    m_bootIcon->setToolTip( tr( "The <strong>boot environment</strong> of this system.<br><br>"
+                                "Older x86 systems only support <strong>BIOS</strong>.<br>"
+                                "Modern systems usually use <strong>EFI</strong>, but "
+                                "may also show up as BIOS if the boot "
+                                "environment runs in compatibility mode.<br>"
+                                "Relevant entries in the system setup utility "
+                                "include: CSM, compatibility support module, "
+                                "Legacy boot, BIOS boot, etc." ) );
+    m_ptIcon->setToolTip( tr( "The type of <strong>partition table</strong> currently "
+                              "present on the selected storage device.<br><br>"
+                              "Common values on x86-compatible systems include "
+                              "<strong>GPT</strong> and <strong>MSDOS</strong>.<br>"
+                              "Some systems may use other, less common partition table "
+                              "types, like BSD or Sun."
+                              "The only way to change the partition table type is to "
+                              "erase and recreate the partition table from scratch, "
+                              "which destroys all data on the storage device.<br>"
+                              "This installer will keep the current partition table "
+                              "unless you explicitly choose otherwise.<br>"
+                              "If unsure, on modern systems GPT is preferred." ) );
+}
+
+
+void
+DeviceInfoWidget::setPartitionTableType( PartitionTable::TableType type )
+{
+    QString typeString = PartitionTable::tableTypeToName( type ).toUpper();
+    // fix up if the name shouldn't be uppercase:
+    switch ( type )
+    {
+    case PartitionTable::loop:
+        typeString = "loop";
+        break;
+    case PartitionTable::mac:
+        typeString = "Mac";
+        break;
+    case PartitionTable::amiga:
+        typeString = "Amiga";
+        break;
+    case PartitionTable::sun:
+        typeString = "Sun";
+        break;
+    case PartitionTable::unknownTableType:
+        typeString = " ? ";
+    }
+
+    m_ptLabel->setText( typeString );
+}
+

src/modules/partition/gui/DeviceInfoWidget.h

@@ -0,0 +1,44 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2015, 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 DEVICEINFOWIDGET_H
+#define DEVICEINFOWIDGET_H
+
+#include <kpmcore/core/partitiontable.h>
+
+#include <QWidget>
+
+class QLabel;
+
+class DeviceInfoWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit DeviceInfoWidget( QWidget* parent = nullptr );
+
+    void setPartitionTableType( PartitionTable::TableType type );
+
+private:
+    QLabel* m_bootIcon;
+    QLabel* m_bootLabel;
+    QLabel* m_ptIcon;
+    QLabel* m_ptLabel;
+};
+
+#endif // DEVICEINFOWIDGET_H