automatically restart gpg4usb after changing keydb path (and add note that restart is done)

git-svn-id: http://cpunk.de/svn/src/gpg4usb/trunk@914 34ebc366-c3a9-4b3c-9f84-69acf7962910

4 files changed, 125 insertions, 4 deletions

diff --git a/gpgcontext.cpp b/gpgcontext.cpp
index 5884c14..7d0fbf2 100644
--- a/gpgcontext.cpp
+++ b/gpgcontext.cpp
@@ -71,7 +71,18 @@ GpgContext::GpgContext()
 #else
     QString gpgBin = appPath + "/bin/gpg";
 #endif
-    QString gpgKeys = appPath + "/keydb";
+
+    QSettings settings;
+    QString accKeydbPath = settings.value("gpgpaths/keydbpath").toString();
+    QString gpgKeys = appPath + "/keydb/"+accKeydbPath;
+
+    if (accKeydbPath != "") {
+        if (!QDir(gpgKeys).exists()) {
+            QMessageBox::critical(0,tr("keydb path"),tr("Didn't find keydb directory. Switching to gpg4usb's default keydb directory for this session."));
+            gpgKeys = appPath + "/keydb";
+        }
+    }
+
     /*    err = gpgme_ctx_set_engine_info(mCtx, GPGME_PROTOCOL_OpenPGP,
                                         gpgBin.toUtf8().constData(),
                                         gpgKeys.toUtf8().constData());*/
@@ -81,6 +92,14 @@ GpgContext::GpgContext()
                                     gpgKeys.toLocal8Bit().constData());
     checkErr(err);
 #endif
+    gpgme_engine_info_t engineInfo;
+    engineInfo = gpgme_ctx_get_engine_info(mCtx);
+
+
+    while (engineInfo !=NULL ) {
+        qDebug() << gpgme_get_protocol_name(engineInfo->protocol);
+        engineInfo=engineInfo->next;
+    }
 
     /** Setting the output type must be done at the beginning */
     /** think this means ascii-armor --> ? */
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 522fe46..2064b48 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -918,6 +918,7 @@ void MainWindow::openSettingsDialog()
 {
 
     QString preLang = settings.value("int/lang").toString();
+    QString preKeydbPath = settings.value("gpgpaths/keydbpath").toString();
 
     new SettingsDialog(this);
     // Iconsize
@@ -939,8 +940,8 @@ void MainWindow::openSettingsDialog()
         closeAttachmentDock();
     }
 
-    // restart mainwindow if langugage changed
-    if(preLang != settings.value("int/lang").toString()) {
+    // restart mainwindow if langugage or keydbpath changed
+    if((preLang != settings.value("int/lang").toString()) || preKeydbPath != settings.value("gpgpaths/keydbpath").toString()) {
         if(edit->maybeSaveAnyTab()) {
             saveSettings();
             qApp->exit(RESTART_CODE);
diff --git a/settingsdialog.cpp b/settingsdialog.cpp
index ffdb5b5..d4cd9cf 100755
--- a/settingsdialog.cpp
+++ b/settingsdialog.cpp
@@ -30,11 +30,13 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     mimeTab = new MimeTab;
     keyserverTab = new KeyserverTab;
     advancedTab = new AdvancedTab;
+    gpgPathsTab = new GpgPathsTab;
 
     tabWidget->addTab(generalTab, tr("General"));
     tabWidget->addTab(appearanceTab, tr("Appearance"));
     tabWidget->addTab(mimeTab, tr("PGP/Mime"));
     tabWidget->addTab(keyserverTab, tr("Keyserver"));
+    tabWidget->addTab(gpgPathsTab, tr("Gpg paths"));
     tabWidget->addTab(advancedTab, tr("Advanced"));
 
     buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
@@ -60,6 +62,7 @@ void SettingsDialog::accept()
     appearanceTab->applySettings();
     keyserverTab->applySettings();
     advancedTab->applySettings();
+    gpgPathsTab->applySettings();
     close();
 }
 
@@ -139,6 +142,7 @@ GeneralTab::GeneralTab(QWidget *parent)
     }
 
     langBoxLayout->addWidget(langSelectBox);
+    langBoxLayout->addWidget(new QLabel(tr("<b>NOTE: </b> Gpg4usb will restart automatically if you change the language!")));
     langBox->setLayout(langBoxLayout);
 
     QVBoxLayout *mainLayout = new QVBoxLayout;
@@ -472,3 +476,79 @@ void AdvancedTab::applySettings()
     QSettings settings;
     settings.setValue("advanced/steganography", steganoCheckBox->isChecked());
 }
+
+GpgPathsTab::GpgPathsTab(QWidget *parent)
+    : QWidget(parent)
+{
+    setSettings();
+
+    /*****************************************
+     * Keydb Box
+     *****************************************/
+    QGroupBox *keydbBox = new QGroupBox(tr("Relative path to keydb"));
+    QGridLayout *keydbBoxLayout = new QGridLayout();
+
+    // Label containing the current keydbpath relative to default keydb path
+    keydbLabel = new QLabel(accKeydbPath,this);
+
+    QPushButton *keydbButton = new QPushButton("Choose keydb path",this);
+    connect(keydbButton, SIGNAL(clicked()), this, SLOT(chooseKeydbDir()));
+    QPushButton *keydbDefaultButton = new QPushButton("Set keydb to default path",this);
+    connect(keydbDefaultButton, SIGNAL(clicked()), this, SLOT(setKeydbPathToDefault()));
+
+    keydbBox->setLayout(keydbBoxLayout);
+    keydbBoxLayout->addWidget(keydbLabel,1,1);
+    keydbBoxLayout->addWidget(keydbButton,1,2);
+    keydbBoxLayout->addWidget(keydbDefaultButton,2,2);
+    keydbBoxLayout->addWidget(new QLabel(tr("<b>NOTE: </b> Gpg4usb will restart automatically if you change the keydb path!")),3,1);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addWidget(keydbBox);
+    mainLayout->addStretch(1);
+    setLayout(mainLayout);
+}
+
+QString GpgPathsTab::getRelativePath(const QString dir1,const QString dir2)
+{
+    QDir dir(dir1);
+    QString s;
+
+    s = dir.relativeFilePath(dir2);
+    qDebug() << "relative path: " << s;
+    if (s.isEmpty()) {
+        s = ".";
+    }
+    return s;
+}
+
+void GpgPathsTab::setKeydbPathToDefault()
+{
+    accKeydbPath = ".";
+    keydbLabel->setText(".");
+}
+
+QString GpgPathsTab::chooseKeydbDir()
+{
+    QString dir = QFileDialog::getExistingDirectory(this,tr ("Choose keydb directory"),accKeydbPath,QFileDialog::ShowDirsOnly);
+
+    accKeydbPath = getRelativePath(defKeydbPath, dir);
+    keydbLabel->setText(accKeydbPath);
+    return "";
+}
+
+void GpgPathsTab::setSettings()
+{
+    defKeydbPath = qApp->applicationDirPath() + "/keydb";
+
+    QSettings settings;
+    accKeydbPath = settings.value("gpgpaths/keydbpath").toString();
+    if (accKeydbPath.isEmpty()) {
+        accKeydbPath = ".";
+    }
+}
+
+void GpgPathsTab::applySettings()
+{
+    QSettings settings;
+    settings.setValue("gpgpaths/keydbpath",accKeydbPath);
+}
diff --git a/settingsdialog.h b/settingsdialog.h
index 4fb668e..1f257a6 100755
--- a/settingsdialog.h
+++ b/settingsdialog.h
@@ -130,7 +130,27 @@ private slots:
 
  };
 
-class SettingsDialog : public QDialog
+ class GpgPathsTab : public QWidget
+ {
+     Q_OBJECT
+ public:
+     GpgPathsTab(QWidget *parent = 0);
+     void applySettings();
+
+private:
+    QString getRelativePath(const QString dir1,const QString dir2);
+    QString defKeydbPath; /** The default keydb path used by gpg4usb */
+    QString accKeydbPath; /** The currently used keydb path */
+    QLabel *keydbLabel;
+    void setSettings();
+
+ private slots:
+     QString chooseKeydbDir();
+     void setKeydbPathToDefault();
+
+ };
+
+ class SettingsDialog : public QDialog
 {
     Q_OBJECT
 
@@ -141,6 +161,7 @@ public:
     AppearanceTab *appearanceTab;
     KeyserverTab *keyserverTab;
     AdvancedTab *advancedTab;
+    GpgPathsTab *gpgPathsTab;
     static QHash<QString, QString> listLanguages();