MainWindow: Keep column widths for each table in Browse Data tab

Store the column widths of the table view widget for each table/view
individually and restore them when changing back to the table/view.

Author: MKleusberg

src/MainWindow.cpp

@@ -116,6 +116,7 @@ void MainWindow::init()
     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(ui->dataTable->horizontalHeader(), SIGNAL(sectionResized(int,int,int)), this, SLOT(updateBrowseDataColumnWidth(int,int,int)));
     connect(editWin, SIGNAL(goingAway()), this, SLOT(editWinAway()));
     connect(editWin, SIGNAL(updateRecordText(int, int, QByteArray)), this, SLOT(updateRecordText(int, int, QByteArray)));
     connect(ui->dbTreeWidget->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(changeTreeSelection()));
@@ -293,6 +294,19 @@ void MainWindow::populateTable( const QString & tablename)
     m_browseTableModel->setTable(tablename);
     ui->dataTable->setColumnHidden(0, true);
 
+    // Restore column widths
+    QMap<QString, QMap<int, int> >::ConstIterator colWidthsIt;
+    if((colWidthsIt = browseTableColumnWidths.constFind(tablename)) != browseTableColumnWidths.constEnd())
+    {
+        // There are some column widths stored for this table
+        for(QMap<int, int>::ConstIterator it=colWidthsIt.value().constBegin();it!=colWidthsIt.value().constEnd();++it)
+            ui->dataTable->setColumnWidth(it.key(), it.value());
+    } else {
+        // There aren't any column widths stored for this table yet, so set default widths
+        for(int i=1;i<m_browseTableModel->columnCount();i++)
+            ui->dataTable->setColumnWidth(i, ui->dataTable->horizontalHeader()->defaultSectionSize());
+    }
+
     // Reset sorting
     curBrowseOrderByIndex = 0;
     curBrowseOrderByMode = Qt::AscendingOrder;
@@ -367,6 +381,9 @@ void MainWindow::fileClose()
     m_browseTableModel = new SqliteTableModel(this, &db, PreferencesDialog::getSettingsValue("db", "prefetchsize").toInt());
     connect(ui->dataTable->filterHeader(), SIGNAL(filterChanged(int,QString)), m_browseTableModel, SLOT(updateFilter(int,QString)));
 
+    // Remove all stored column widths for the browse data table
+    browseTableColumnWidths.clear();
+
     // Manually update the recordset label inside the Browse tab now
     setRecordsetLabel();
 
@@ -1662,3 +1679,8 @@ void MainWindow::on_actionWebsite_triggered()
 {
     QDesktopServices::openUrl(QUrl("http://sqlitebrowser.org"));
 }
+
+void MainWindow::updateBrowseDataColumnWidth(int section, int /*old_size*/, int new_size)
+{
+    browseTableColumnWidths[ui->comboBrowseTable->currentText()][section] = new_size;
+}

src/MainWindow.h

@@ -6,6 +6,7 @@
 
 #include <QMainWindow>
 #include <QStandardItemModel>
+#include <QMap>
 
 class QDragEnterEvent;
 class EditDialog;
@@ -84,6 +85,7 @@ class MainWindow : public QMainWindow
 
     int curBrowseOrderByIndex;
     Qt::SortOrder curBrowseOrderByMode;
+    QMap<QString, QMap<int, int> > browseTableColumnWidths;
 
     EditDialog* editWin;
     QIntValidator* gotoValidator;
@@ -171,6 +173,7 @@ private slots:
     void on_actionWiki_triggered();
     void on_actionBug_report_triggered();
     void on_actionWebsite_triggered();
+    void updateBrowseDataColumnWidth(int section, int /*old_size*/, int new_size);
 };
 
 #endif