From 37ada91000dc14e0d154e1a3f4fd7f1f842ce956 Mon Sep 17 00:00:00 2001
From: Tomaz Canabrava <tcanabrava@kde.org>
Date: Tue, 21 May 2013 16:51:49 -0300
Subject: Added code for handling of show / hide of columns.

The code also remembers to save in the config file.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
---
 qt-ui/divelistview.cpp | 37 +++++++++++++++++++++++++++++++++++--
 qt-ui/divelistview.h   |  4 +++-
 2 files changed, 38 insertions(+), 3 deletions(-)

(limited to 'qt-ui')

diff --git a/qt-ui/divelistview.cpp b/qt-ui/divelistview.cpp
index 5c8a93ff0..248a29634 100644
--- a/qt-ui/divelistview.cpp
+++ b/qt-ui/divelistview.cpp
@@ -10,8 +10,10 @@
 #include <QApplication>
 #include <QHeaderView>
 #include <QDebug>
+#include <QSettings>
 #include <QKeyEvent>
 #include <QSortFilterProxyModel>
+#include <QAction>
 
 
 DiveListView::DiveListView(QWidget *parent) : QTreeView(parent), mouseClickSelection(false)
@@ -20,6 +22,7 @@ DiveListView::DiveListView(QWidget *parent) : QTreeView(parent), mouseClickSelec
 	setItemDelegateForColumn(TreeItemDT::RATING, new StarWidgetsDelegate());
 	QSortFilterProxyModel *model = new QSortFilterProxyModel(this);
 	setModel(model);
+	header()->setContextMenuPolicy(Qt::ActionsContextMenu);
 }
 
 void DiveListView::reload()
@@ -37,11 +40,41 @@ void DiveListView::reload()
 		else
 			setCurrentIndex(firstDiveOrTrip);
 	}
+	// Populate the context menu of the headers that will show
+	// the menu to show / hide columns.
+	if (!header()->actions().size()){
+		QAction *visibleAction = new QAction("Visible:", header());
+		header()->addAction(visibleAction);
+		QSettings s;
+		s.beginGroup("DiveListColumnState");
+		for(int i = 0; i < model()->columnCount(); i++){
+			QString title = QString("show %1").arg( model()->headerData( i, Qt::Horizontal).toString());
+			QAction *a = new QAction(title, header());
+			a->setCheckable(true);
+			a->setChecked( s.value(title, true).toBool());
+			a->setProperty("index", i);
+			connect(a, SIGNAL(triggered(bool)), this, SLOT(hideColumnByIndex()));
+			header()->addAction(a);
+		}
+		s.endGroup();
+	}
 }
 
-void DiveListView::setModel(QAbstractItemModel* model)
+void DiveListView::hideColumnByIndex()
 {
-	QTreeView::setModel(model);
+	QAction *action = qobject_cast<QAction*>(sender());
+	if (!action)
+		return;
+
+	QSettings s;
+	s.beginGroup("DiveListColumnState");
+	s.setValue(action->text(), action->isChecked());
+	s.endGroup();
+
+	if (action->isChecked())
+		showColumn(action->property("index").toInt());
+	else
+		hideColumn(action->property("index").toInt());
 }
 
 void DiveListView::setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags command)
diff --git a/qt-ui/divelistview.h b/qt-ui/divelistview.h
index 09830b7b5..6cbcd8319 100644
--- a/qt-ui/divelistview.h
+++ b/qt-ui/divelistview.h
@@ -23,7 +23,6 @@ public:
 	DiveListView(QWidget *parent = 0);
 	void selectionChanged(const QItemSelection& selected, const QItemSelection& deselected);
 	void currentChanged(const QModelIndex& current, const QModelIndex& previous);
-	void setModel(QAbstractItemModel* model);
 	void mousePressEvent(QMouseEvent* event);
 	void mouseReleaseEvent(QMouseEvent* event);
 	void keyPressEvent(QKeyEvent* event);
@@ -31,6 +30,9 @@ public:
 	void setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags command);
 	void reload();
 
+public slots:
+	void hideColumnByIndex();
+
 Q_SIGNALS:
 	void currentDiveChanged(int divenr);
 private:
-- 
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