Move filter header from window to table widget and show sort indicators

Move the FilterTableHeader object from the MainWindow to the
ExtendedTableWidget class because it actually is a part of the latter,
not the former.

Show sort order arrows in the table header of the Browse Data tab after
clicking it.

src/ExtendedTableWidget.cpp

@@ -1,5 +1,6 @@
 #include "ExtendedTableWidget.h"
 #include "sqlitetablemodel.h"
+#include "FilterTableHeader.h"
 
 #include <QApplication>
 #include <QClipboard>
@@ -14,6 +15,10 @@ ExtendedTableWidget::ExtendedTableWidget(QWidget* parent) :
     setHorizontalScrollMode(ExtendedTableWidget::ScrollPerPixel);
 
     connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(vscrollbarChanged(int)));
+
+    // Set up filter row
+    m_tableHeader = new FilterTableHeader(this);
+    setHorizontalHeader(m_tableHeader);
 }
 
 void ExtendedTableWidget::copy()

src/ExtendedTableWidget.h

@@ -2,6 +2,7 @@
 #define __EXTENDEDTABLEWIDGET_H__
 
 #include <QTableView>
+#include "FilterTableHeader.h"
 
 class ExtendedTableWidget : public QTableView
 {
@@ -10,6 +11,8 @@ class ExtendedTableWidget : public QTableView
 public:
     explicit ExtendedTableWidget(QWidget* parent = 0);
 
+    FilterTableHeader* filterHeader() { return m_tableHeader; }
+
 private:
     void copy();
     int numVisibleRows();
@@ -20,6 +23,8 @@ private slots:
 protected:
     virtual void keyPressEvent(QKeyEvent* event);
     virtual void updateGeometries();
+
+    FilterTableHeader* m_tableHeader;
 };
 
 #endif

src/FilterTableHeader.cpp

@@ -14,6 +14,8 @@ FilterTableHeader::FilterTableHeader(QTableView* parent) :
     setClickable(true);
 #endif
 
+    setSortIndicatorShown(true);
+
     // Do some connects: Basically just resize and reposition the input widgets whenever anything changes
     connect(this, SIGNAL(sectionResized(int,int,int)), this, SLOT(adjustPositions()));
     connect(parent->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(adjustPositions()));

src/MainWindow.cpp

@@ -11,7 +11,6 @@
 #include "SQLiteSyntaxHighlighter.h"
 #include "sqltextedit.h"
 #include "sqlitetablemodel.h"
-#include "FilterTableHeader.h"
 #include "SqlExecutionArea.h"
 #include "VacuumDialog.h"
 #include "DbStructureModel.h"
@@ -78,10 +77,6 @@ void MainWindow::init()
     ui->dbTreeWidget->setColumnHidden(1, true);
     ui->dbTreeWidget->setColumnWidth(0, 300);
 
-    // Set up filter row
-    m_tableHeader = new FilterTableHeader(ui->dataTable);
-    ui->dataTable->setHorizontalHeader(m_tableHeader);
-
     // Create the actions for the recently opened dbs list
     for(int i = 0; i < MaxRecentFiles; ++i) {
         recentFileActs[i] = new QAction(this);
@@ -118,8 +113,8 @@ void MainWindow::init()
     ui->statusbar->addPermanentWidget(statusEncodingLabel);
 
     // Connect some more signals and slots
-    connect(m_tableHeader, SIGNAL(filterChanged(int,QString)), this, SLOT(setRecordsetLabel()));
-    connect(m_tableHeader, SIGNAL(sectionClicked(int)), this, SLOT(browseTableHeaderClicked(int)));
+    connect(ui->dataTable->filterHeader(), SIGNAL(filterChanged(int,QString)), this, SLOT(setRecordsetLabel()));
+    connect(ui->dataTable->filterHeader(), SIGNAL(sectionClicked(int)), this, SLOT(browseTableHeaderClicked(int)));
     connect(ui->dataTable->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(setRecordsetLabel()));
     connect(editWin, SIGNAL(goingAway()), this, SLOT(editWinAway()));
     connect(editWin, SIGNAL(updateRecordText(int, int, QByteArray)), this, SLOT(updateRecordText(int, int, QByteArray)));
@@ -302,6 +297,7 @@ void MainWindow::populateTable( const QString & tablename)
     curBrowseOrderByIndex = 0;
     curBrowseOrderByMode = Qt::AscendingOrder;
     m_browseTableModel->sort(curBrowseOrderByIndex, curBrowseOrderByMode);
+    ui->dataTable->filterHeader()->setSortIndicator(curBrowseOrderByIndex, curBrowseOrderByMode);
 
     // Update the filter row
     qobject_cast<FilterTableHeader*>(ui->dataTable->horizontalHeader())->generateFilters(m_browseTableModel->columnCount());
@@ -369,7 +365,7 @@ void MainWindow::fileClose()
     // Delete the model for the Browse tab and create a new one
     delete m_browseTableModel;
     m_browseTableModel = new SqliteTableModel(this, &db, PreferencesDialog::getSettingsValue("db", "prefetchsize").toInt());
-    connect(m_tableHeader, SIGNAL(filterChanged(int,QString)), m_browseTableModel, SLOT(updateFilter(int,QString)));
+    connect(ui->dataTable->filterHeader(), SIGNAL(filterChanged(int,QString)), m_browseTableModel, SLOT(updateFilter(int,QString)));
 
     // Manually update the recordset label inside the Browse tab now
     setRecordsetLabel();

src/MainWindow.h

@@ -19,7 +19,6 @@ class DbStructureModel;
 class QNetworkReply;
 class QNetworkAccessManager;
 class QTreeWidgetItem;
-class FilterTableHeader;
 
 namespace Ui {
 class MainWindow;
@@ -69,7 +68,6 @@ private:
 
     SqliteTableModel* m_browseTableModel;
     SqliteTableModel* m_currentPlotModel;
-    FilterTableHeader* m_tableHeader;
     QMenu *popupTableMenu;
     QMenu *recentFilesMenu;
 

src/MainWindow.ui

@@ -174,6 +174,9 @@
           <property name="editTriggers">
            <set>QAbstractItemView::NoEditTriggers</set>
           </property>
+          <attribute name="horizontalHeaderShowSortIndicator" stdset="0">
+           <bool>true</bool>
+          </attribute>
          </widget>
         </item>
         <item>