Added Column dialog for selecting visible columns. Selection is stored to settings.

core/columndialog.cpp

@@ -0,0 +1,59 @@
+#include "columndialog.h"
+#include "ui_columndialog.h"
+
+#include <QTableWidgetItem>
+#include <QHeaderView>
+
+ColumnDialog::ColumnDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::ColumnDialog)
+{
+    ui->setupUi(this);
+}
+
+ColumnDialog::~ColumnDialog()
+{
+    delete ui;
+}
+
+void ColumnDialog::setTable(QTableView *table)
+{
+    ui->tableWidget->clear();
+    ui->tableWidget->setColumnCount(1);
+    ui->tableWidget->setHorizontalHeaderItem(0, new QTableWidgetItem("Column"));
+    ui->tableWidget->setRowCount(table->model()->columnCount());
+    for (int i = 0; i < table->model()->columnCount(); i++)
+    {
+        QVariant data = table->model()->headerData(i, Qt::Horizontal);
+        QTableWidgetItem *item = new QTableWidgetItem(data.toString());
+
+        if (table->isColumnHidden(i))
+        {
+            item->setCheckState(Qt::Unchecked);
+        }
+        else
+        {
+            item->setCheckState(Qt::Checked);
+        }
+        ui->tableWidget->setItem(i, 0, item);
+    }
+
+    QHeaderView *horzHdr = ui->tableWidget->horizontalHeader();
+    horzHdr->setStretchLastSection(true);
+}
+
+QList<int> ColumnDialog::columnsToHide()
+{
+    QList<int> list;
+
+    for (int i = 0; i < ui->tableWidget->rowCount(); i++)
+    {
+        if (ui->tableWidget->item(i, 0)->checkState() == Qt::Unchecked)
+        {
+            list.append(i);
+        }
+    }
+
+    return list;
+}
+