Add basic and shaky pragma editing

Since quite a few problems are fixed by now and the program is moving
towards rudeimentary usability again it's time to add some new features
and problems!

src/MainWindow.cpp

@@ -81,6 +81,7 @@ MainWindow::MainWindow(QWidget* parent)
     setAcceptDrops(true);
 
     (void)statusBar();
+    activateFields(false);
     init();
 }
 
@@ -166,6 +167,8 @@ void MainWindow::fileOpen(const QString & fileName)
         }
         populateStructure();
         resetBrowser();
+        if(ui->mainTab->currentIndex() == 2)
+            loadPragmas();
     }
 }
 
@@ -322,6 +325,7 @@ void MainWindow::fileClose()
     this->setWindowTitle(QApplication::applicationName());
     resetBrowser();
     populateStructure();
+    loadPragmas();
     activateFields(false);
 }
 
@@ -895,6 +899,8 @@ void MainWindow::mainTabSelected(int tabindex)
         populateStructure();
     else if(tabindex == 1)
         resetBrowser();
+    else if(tabindex == 2)
+        loadPragmas();
 }
 
 void MainWindow::importTableFromCSV()
@@ -1316,6 +1322,12 @@ void MainWindow::activateFields(bool enable)
     ui->buttonNext->setEnabled(enable);
     ui->buttonPrevious->setEnabled(enable);
     ui->executeQueryButton->setEnabled(enable);
+    ui->scrollareaPragmas->setEnabled(enable);
+    ui->buttonGoto->setEnabled(enable);
+    ui->editGoto->setEnabled(enable);
+    ui->buttonRefresh->setEnabled(enable);
+    ui->buttonDeleteRecord->setEnabled(enable);
+    ui->buttonNewRecord->setEnabled(enable);
 }
 
 void MainWindow::browseTableHeaderClicked(int logicalindex)
@@ -1334,3 +1346,59 @@ void MainWindow::resizeEvent(QResizeEvent*)
 {
     setRecordsetLabel();
 }
+
+void MainWindow::loadPragmas()
+{
+    ui->comboboxPragmaAutoVacuum->setCurrentIndex(db.getPragma("auto_vacuum").toInt());
+    ui->checkboxPragmaAutomaticIndex->setChecked(db.getPragma("automatic_index").toInt());
+    ui->spinPragmaBusyTimeout->setValue(db.getPragma("busy_timeout").toInt());
+    ui->spinPragmaCacheSize->setValue(db.getPragma("cache_size").toInt());
+    ui->checkboxPragmaCheckpointFullFsync->setChecked(db.getPragma("checkpoint_fullfsync").toInt());
+    ui->comboboxPragmaEncoding->setCurrentIndex(db.getPragma("encoding").toInt());
+    ui->checkboxPragmaForeignKeys->setChecked(db.getPragma("foreign_keys").toInt());
+    ui->checkboxPragmaFullFsync->setChecked(db.getPragma("fullfsync").toInt());
+    ui->checkboxPragmaIgnoreCheckConstraints->setChecked(db.getPragma("ignore_check_constraints").toInt());
+    ui->comboboxPragmaJournalMode->setCurrentIndex(db.getPragma("journal_mode").toInt());
+    ui->spinPragmaJournalSizeLimit->setValue(db.getPragma("journal_size_limit").toInt());
+    ui->checkboxPragmaLegacyFileFormat->setChecked(db.getPragma("legacy_file_format").toInt());
+    ui->comboboxPragmaLockingMode->setCurrentIndex(db.getPragma("locking_mode").toInt());
+    ui->spinPragmaMaxPageCount->setValue(db.getPragma("max_page_count").toInt());
+    ui->spinPragmaPageSize->setValue(db.getPragma("page_size").toInt());
+    ui->checkboxPragmaReadUncommitted->setChecked(db.getPragma("read_uncommitted").toInt());
+    ui->checkboxPragmaRecursiveTriggers->setChecked(db.getPragma("recursive_triggers").toInt());
+    ui->checkboxPragmaReverseUnorderedSelects->setChecked(db.getPragma("reverse_unordered_selects").toInt());
+    ui->spinPragmaSchemaVersion->setValue(db.getPragma("schema_version").toInt());
+    ui->checkboxPragmaSecureDelete->setChecked(db.getPragma("secure_delete").toInt());
+    ui->comboboxPragmaSynchronous->setCurrentIndex(db.getPragma("synchronous").toInt());
+    ui->comboboxPragmaTempStore->setCurrentIndex(db.getPragma("temp_store").toInt());
+    ui->spinPragmaUserVersion->setValue(db.getPragma("user_version").toInt());
+    ui->spinPragmaWalAutoCheckpoint->setValue(db.getPragma("wal_autocheckpoint").toInt());
+}
+
+void MainWindow::savePragmas()
+{
+    db.setPragma("auto_vacuum", QString::number(ui->comboboxPragmaAutoVacuum->currentIndex()));
+    db.setPragma("automatic_index", QString::number(ui->checkboxPragmaAutomaticIndex->isChecked()));
+    db.setPragma("busy_timeout", QString::number(ui->spinPragmaBusyTimeout->value()));
+    db.setPragma("cache_size", QString::number(ui->spinPragmaCacheSize->value()));
+    db.setPragma("checkpoint_fullfsync", QString::number(ui->checkboxPragmaCheckpointFullFsync->isChecked()));
+    db.setPragma("encoding", QString::number(ui->comboboxPragmaEncoding->currentIndex()));
+    db.setPragma("foreign_keys", QString::number(ui->checkboxPragmaForeignKeys->isChecked()));
+    db.setPragma("fullfsync", QString::number(ui->checkboxPragmaFullFsync->isChecked()));
+    db.setPragma("ignore_check_constraints", QString::number(ui->checkboxPragmaIgnoreCheckConstraints->isChecked()));
+    db.setPragma("journal_mode", QString::number(ui->comboboxPragmaJournalMode->currentIndex()));
+    db.setPragma("journal_size_limit", QString::number(ui->spinPragmaJournalSizeLimit->value()));
+    db.setPragma("legacy_file_format", QString::number(ui->checkboxPragmaLegacyFileFormat->isChecked()));
+    db.setPragma("locking_mode", QString::number(ui->comboboxPragmaLockingMode->currentIndex()));
+    db.setPragma("max_page_count", QString::number(ui->spinPragmaMaxPageCount->value()));
+    db.setPragma("page_size", QString::number(ui->spinPragmaPageSize->value()));
+    db.setPragma("read_uncommitted", QString::number(ui->checkboxPragmaReadUncommitted->isChecked()));
+    db.setPragma("recursive_triggers", QString::number(ui->checkboxPragmaRecursiveTriggers->isChecked()));
+    db.setPragma("reverse_unordered_selects", QString::number(ui->checkboxPragmaReverseUnorderedSelects->isChecked()));
+    db.setPragma("schema_version", QString::number(ui->spinPragmaSchemaVersion->value()));
+    db.setPragma("secure_delete", QString::number(ui->checkboxPragmaSecureDelete->isChecked()));
+    db.setPragma("synchronous", QString::number(ui->comboboxPragmaSynchronous->currentIndex()));
+    db.setPragma("temp_store", QString::number(ui->comboboxPragmaTempStore->currentIndex()));
+    db.setPragma("user_version", QString::number(ui->spinPragmaUserVersion->value()));
+    db.setPragma("wal_autocheckpoint", QString::number(ui->spinPragmaWalAutoCheckpoint->value()));
+}

src/MainWindow.h

@@ -117,6 +117,8 @@ public slots:
     virtual void openPreferences();
     virtual void updatePreferences();
     virtual void openRecentFile();
+    virtual void loadPragmas();
+    virtual void savePragmas();
 
 protected:
     DBBrowserDB db;

src/MainWindow.ui

@@ -276,6 +276,549 @@
      </item>
     </layout>
    </widget>
+   <widget class="QWidget" name="pragmas">
+    <attribute name="title">
+     <string>Edit &amp;Pragmas</string>
+    </attribute>
+    <layout class="QVBoxLayout" name="verticalLayout_4">
+     <item>
+      <widget class="QScrollArea" name="scrollareaPragmas">
+       <property name="widgetResizable">
+        <bool>true</bool>
+       </property>
+       <widget class="QWidget" name="scrollAreaWidgetContents">
+        <property name="geometry">
+         <rect>
+          <x>0</x>
+          <y>-165</y>
+          <width>763</width>
+          <height>653</height>
+         </rect>
+        </property>
+        <layout class="QFormLayout" name="formLayout">
+         <property name="fieldGrowthPolicy">
+          <enum>QFormLayout::ExpandingFieldsGrow</enum>
+         </property>
+         <item row="0" column="0">
+          <widget class="QLabel" name="labelPragmaAutoVacuum">
+           <property name="text">
+            <string>Auto Vacuum</string>
+           </property>
+           <property name="buddy">
+            <cstring>comboboxPragmaAutoVacuum</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QComboBox" name="comboboxPragmaAutoVacuum">
+           <item>
+            <property name="text">
+             <string>None</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Full</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Incremental</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="labelPragmaAutomaticIndex">
+           <property name="text">
+            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Automatic Index&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaAutomaticIndex</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaAutomaticIndex">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="0">
+          <widget class="QLabel" name="labelPragmaBusyTimeout">
+           <property name="text">
+            <string>Busy Timeout</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaBusyTimeout</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="3" column="0">
+          <widget class="QLabel" name="labelPragmaCacheSize">
+           <property name="text">
+            <string>Cache Size</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaCacheSize</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="4" column="0">
+          <widget class="QLabel" name="labelPragmaCheckpointFullFsync">
+           <property name="text">
+            <string>Checkpoint Full FSYNC</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaCheckpointFullFsync</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="4" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaCheckpointFullFsync">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="5" column="0">
+          <widget class="QLabel" name="labelPragmaEncoding">
+           <property name="text">
+            <string>Encoding</string>
+           </property>
+           <property name="buddy">
+            <cstring>comboboxPragmaEncoding</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="6" column="0">
+          <widget class="QLabel" name="labelPragmaForeignKeys">
+           <property name="text">
+            <string>Foreign Keys</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaForeignKeys</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="6" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaForeignKeys">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="7" column="0">
+          <widget class="QLabel" name="labelPragmaFullFsync">
+           <property name="text">
+            <string>Full FSYNC</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaFullFsync</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="7" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaFullFsync">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="8" column="0">
+          <widget class="QLabel" name="labelPragmaIgnoreCheckConstraints">
+           <property name="text">
+            <string>Ignore Check Constraints</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaIgnoreCheckConstraints</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="8" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaIgnoreCheckConstraints">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="9" column="0">
+          <widget class="QLabel" name="labelPragmaJournalMode">
+           <property name="text">
+            <string>Journal Mode</string>
+           </property>
+           <property name="buddy">
+            <cstring>comboboxPragmaJournalMode</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="9" column="1">
+          <widget class="QComboBox" name="comboboxPragmaJournalMode">
+           <item>
+            <property name="text">
+             <string>Delete</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Truncate</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Persist</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Memory</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>WAL</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Off</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+         <item row="10" column="0">
+          <widget class="QLabel" name="labelJournalSizeLimit">
+           <property name="text">
+            <string>Journal Size Limit</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaJournalSizeLimit</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="11" column="0">
+          <widget class="QLabel" name="labelPragmaLegacyFileFormat">
+           <property name="text">
+            <string>Legacy File Format</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaLegacyFileFormat</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="11" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaLegacyFileFormat">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="12" column="0">
+          <widget class="QLabel" name="labelPragmaLockingMode">
+           <property name="text">
+            <string>Locking Mode</string>
+           </property>
+           <property name="buddy">
+            <cstring>comboboxPragmaLockingMode</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="12" column="1">
+          <widget class="QComboBox" name="comboboxPragmaLockingMode">
+           <item>
+            <property name="text">
+             <string>Normal</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Exclusive</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+         <item row="13" column="0">
+          <widget class="QLabel" name="labelPragmaMaxPageCount">
+           <property name="text">
+            <string>Max Page Count</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaMaxPageCount</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="14" column="0">
+          <widget class="QLabel" name="labelPragmaPageSize">
+           <property name="text">
+            <string>Page Size</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaPageSize</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="15" column="0">
+          <widget class="QLabel" name="labelPragmaReadUncommitted">
+           <property name="text">
+            <string>Read Uncommitted</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaReadUncommitted</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="15" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaReadUncommitted">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="16" column="0">
+          <widget class="QLabel" name="labelPragmaRecursiveTriggers">
+           <property name="text">
+            <string>Recursive Triggers</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaRecursiveTriggers</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="16" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaRecursiveTriggers">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="17" column="0">
+          <widget class="QLabel" name="labelPragmaReverseUnorderedSelects">
+           <property name="text">
+            <string>Reverse Unordered Selects</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaReverseUnorderedSelects</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="17" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaReverseUnorderedSelects">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="18" column="0">
+          <widget class="QLabel" name="labelPragmaSchemaVersion">
+           <property name="text">
+            <string>Schema Version</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaSchemaVersion</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="19" column="0">
+          <widget class="QLabel" name="labelPragmaSecureDelete">
+           <property name="text">
+            <string>Secure Delete</string>
+           </property>
+           <property name="buddy">
+            <cstring>checkboxPragmaSecureDelete</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="19" column="1">
+          <widget class="QCheckBox" name="checkboxPragmaSecureDelete">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+         <item row="20" column="0">
+          <widget class="QLabel" name="labelPragmaSynchronous">
+           <property name="text">
+            <string>Synchronous</string>
+           </property>
+           <property name="buddy">
+            <cstring>comboboxPragmaSynchronous</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="20" column="1">
+          <widget class="QComboBox" name="comboboxPragmaSynchronous">
+           <item>
+            <property name="text">
+             <string>Off</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Normal</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Full</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+         <item row="21" column="0">
+          <widget class="QLabel" name="labelPragmaTempStore">
+           <property name="text">
+            <string>Temp Store</string>
+           </property>
+           <property name="buddy">
+            <cstring>comboboxPragmaTempStore</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="21" column="1">
+          <widget class="QComboBox" name="comboboxPragmaTempStore">
+           <item>
+            <property name="text">
+             <string>Default</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>File</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>Memory</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+         <item row="22" column="0">
+          <widget class="QLabel" name="labelPragmaUserVersion">
+           <property name="text">
+            <string>User Version</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaUserVersion</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="23" column="0">
+          <widget class="QLabel" name="labelPragmaWalAutoCheckpoint">
+           <property name="text">
+            <string>WAL Auto Checkpoint</string>
+           </property>
+           <property name="buddy">
+            <cstring>spinPragmaWalAutoCheckpoint</cstring>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="QSpinBox" name="spinPragmaBusyTimeout">
+           <property name="maximum">
+            <number>10000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="3" column="1">
+          <widget class="QSpinBox" name="spinPragmaCacheSize">
+           <property name="minimum">
+            <number>-100000</number>
+           </property>
+           <property name="maximum">
+            <number>100000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="5" column="1">
+          <widget class="QComboBox" name="comboboxPragmaEncoding">
+           <item>
+            <property name="text">
+             <string>UTF-8</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>UTF-16</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>UTF-16le</string>
+            </property>
+           </item>
+           <item>
+            <property name="text">
+             <string>UTF-16be</string>
+            </property>
+           </item>
+          </widget>
+         </item>
+         <item row="10" column="1">
+          <widget class="QSpinBox" name="spinPragmaJournalSizeLimit">
+           <property name="minimum">
+            <number>-1</number>
+           </property>
+           <property name="maximum">
+            <number>100000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="13" column="1">
+          <widget class="QSpinBox" name="spinPragmaMaxPageCount">
+           <property name="maximum">
+            <number>2000000000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="14" column="1">
+          <widget class="QSpinBox" name="spinPragmaPageSize">
+           <property name="minimum">
+            <number>512</number>
+           </property>
+           <property name="maximum">
+            <number>65536</number>
+           </property>
+          </widget>
+         </item>
+         <item row="18" column="1">
+          <widget class="QSpinBox" name="spinPragmaSchemaVersion">
+           <property name="maximum">
+            <number>10000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="22" column="1">
+          <widget class="QSpinBox" name="spinPragmaUserVersion">
+           <property name="maximum">
+            <number>10000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="23" column="1">
+          <widget class="QSpinBox" name="spinPragmaWalAutoCheckpoint">
+           <property name="maximum">
+            <number>10000</number>
+           </property>
+          </widget>
+         </item>
+         <item row="24" column="1">
+          <widget class="QDialogButtonBox" name="buttonBoxPragmas">
+           <property name="standardButtons">
+            <set>QDialogButtonBox::Cancel|QDialogButtonBox::Save</set>
+           </property>
+           <property name="centerButtons">
+            <bool>false</bool>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+      </widget>
+     </item>
+    </layout>
+   </widget>
    <widget class="QWidget" name="query">
     <attribute name="title">
      <string>E&amp;xecute SQL</string>
@@ -874,6 +1417,32 @@
   <tabstop>executeQueryButton</tabstop>
   <tabstop>queryErrorLineEdit</tabstop>
   <tabstop>queryResultTableView</tabstop>
+  <tabstop>scrollareaPragmas</tabstop>
+  <tabstop>comboboxPragmaAutoVacuum</tabstop>
+  <tabstop>checkboxPragmaAutomaticIndex</tabstop>
+  <tabstop>spinPragmaBusyTimeout</tabstop>
+  <tabstop>spinPragmaCacheSize</tabstop>
+  <tabstop>checkboxPragmaCheckpointFullFsync</tabstop>
+  <tabstop>comboboxPragmaEncoding</tabstop>
+  <tabstop>checkboxPragmaForeignKeys</tabstop>
+  <tabstop>checkboxPragmaFullFsync</tabstop>
+  <tabstop>checkboxPragmaIgnoreCheckConstraints</tabstop>
+  <tabstop>comboboxPragmaJournalMode</tabstop>
+  <tabstop>spinPragmaJournalSizeLimit</tabstop>
+  <tabstop>checkboxPragmaLegacyFileFormat</tabstop>
+  <tabstop>comboboxPragmaLockingMode</tabstop>
+  <tabstop>spinPragmaMaxPageCount</tabstop>
+  <tabstop>spinPragmaPageSize</tabstop>
+  <tabstop>checkboxPragmaReadUncommitted</tabstop>
+  <tabstop>checkboxPragmaRecursiveTriggers</tabstop>
+  <tabstop>checkboxPragmaReverseUnorderedSelects</tabstop>
+  <tabstop>spinPragmaSchemaVersion</tabstop>
+  <tabstop>checkboxPragmaSecureDelete</tabstop>
+  <tabstop>comboboxPragmaSynchronous</tabstop>
+  <tabstop>comboboxPragmaTempStore</tabstop>
+  <tabstop>spinPragmaUserVersion</tabstop>
+  <tabstop>spinPragmaWalAutoCheckpoint</tabstop>
+  <tabstop>buttonBoxPragmas</tabstop>
  </tabstops>
  <resources>
   <include location="icons/icons.qrc"/>
@@ -1503,6 +2072,38 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>buttonBoxPragmas</sender>
+   <signal>rejected()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>loadPragmas()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>243</x>
+     <y>551</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>-1</x>
+     <y>470</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBoxPragmas</sender>
+   <signal>accepted()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>savePragmas()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>715</x>
+     <y>550</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>802</x>
+     <y>522</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
  <slots>
   <slot>fileOpen()</slot>
@@ -1543,5 +2144,7 @@
   <slot>fileNew()</slot>
   <slot>helpAbout()</slot>
   <slot>on_delete_field()</slot>
+  <slot>loadPragmas()</slot>
+  <slot>savePragmas()</slot>
  </slots>
 </ui>

src/sqlitedb.cpp

@@ -778,7 +778,122 @@ QStringList DBBrowserDB::decodeCSV(const QString & csvfilename, char sep, char q
     return result;
 }
 
+QString DBBrowserDB::getPragma(QString pragma)
+{
+    if(!isOpen())
+        return "";
 
+    QString sql = QString("PRAGMA %1").arg(pragma);
+    sqlite3_stmt* vm;
+    const char* tail;
+    QString retval = "";
 
+    // Get value from DB
+    int err = sqlite3_prepare(_db, sql.toStdString().c_str(), sql.length(), &vm, &tail);
+    if(err == SQLITE_OK){
+        logSQL(sql, kLogMsg_App);
+        if(sqlite3_step(vm) == SQLITE_ROW)
+        {
+            retval = QString((const char *) sqlite3_column_text(vm, 0));
+            sqlite3_finalize(vm);
+        } else {
+            sqlite3_finalize(vm);
+            qDebug("didn't receive any output from pragma %s", pragma.toStdString().c_str());
+        }
+    } else {
+        qDebug ("could not execute pragma command: %d, %s", err, sqlite3_errmsg(_db));
+    }
 
+    // Make changes to the value when needed
+    if(pragma == "journal_mode")
+    {
+        retval = retval.toLower();
+        if(retval == "delete")
+            retval = "0";
+        else if(retval == "truncate")
+            retval = "1";
+        else if(retval == "persist")
+            retval = "2";
+        else if(retval == "memory")
+            retval = "3";
+        else if(retval == "wal")
+            retval = "4";
+        else if(retval == "off")
+            retval = "5";
+        else
+            retval = "0";
+    } else if(pragma == "locking_mode") {
+        retval = retval.toLower();
+        if(retval == "normal")
+            retval = "0";
+        else if(retval == "exclusive")
+            retval = "1";
+        else
+            retval = "0";
+    } else if(pragma == "encoding") {
+        retval = retval.toLower();
+        if(retval == "utf-8")
+            retval = "0";
+        else if(retval == "utf-16")
+            retval = "1";
+        else if(retval == "utf-16le")
+            retval = "2";
+        else if(retval == "utf-16be")
+            retval = "3";
+        else
+            retval = "0";
+    }
 
+    // Return it
+    return retval;
+}
+
+bool DBBrowserDB::setPragma(QString pragma, QString value)
+{
+    // Make changes to the value when needed
+    if(pragma == "journal_mode")
+    {
+        if(value == "0")
+            value = "delete";
+        else if(value == "1")
+            value = "truncate";
+        else if(value == "2")
+            value = "persist";
+        else if(value == "3")
+            value = "memory";
+        else if(value == "4")
+            value = "wal";
+        else if(value == "5")
+            value = "off";
+        else
+            value = "delete";
+    } else if(value == "locking_mode") {
+        if(value == "0")
+            value = "normal";
+        else if(value == "1")
+            value = "exclusive";
+        else
+            value = "normal";
+    } else if(pragma == "encoding") {
+        if(value == "0")
+            value = "\"utf-8\"";
+        else if(value == "1")
+            value = "\"utf-16\"";
+        else if(value == "2")
+            value = "\"utf-16le\"";
+        else if(value == "3")
+            value = "\"utf-16be\"";
+        else
+            value = "\"utf-8\"";
+    }
+
+    // Set the pragma value
+    QString sql = QString("PRAGMA %1 = %2;").arg(pragma).arg(value);
+    if(!executeSQL(sql))
+    {
+        qDebug("Error setting pragma %s to %s: %s", pragma.toStdString().c_str(), value.toStdString().c_str(), lastErrorMessage.toStdString().c_str());
+        return false;
+    } else {
+        return true;
+    }
+}

src/sqlitedb.h

@@ -120,6 +120,8 @@ public:
     char * GetEncodedQStringAsPointer( const QString & input);
     QString GetEncodedQString( const QString & input);
     QString GetDecodedQString( const QString & input);
+    QString getPragma(QString pragma);
+    bool setPragma(QString pragma, QString value);
     sqlite3 * _db;