From: Juergen Spitzmueller <spitz@lyx.org>
Date: Sat, 30 Mar 2019 10:32:06 +0000 (+0100)
Subject: GuiSelectionManager: properly handle de-selecting items
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=b34b364a3c50c25b9145fa2a64e7d6ab7b6703d0;p=features.git

GuiSelectionManager: properly handle de-selecting items

When an item is de-selected with the mouse, and thus no item selected
anymore, disable add, up, down and delete buttons.
---

diff --git a/src/frontends/qt4/GuiSelectionManager.cpp b/src/frontends/qt4/GuiSelectionManager.cpp
index 3b802081b6..ed2c640e4f 100644
--- a/src/frontends/qt4/GuiSelectionManager.cpp
+++ b/src/frontends/qt4/GuiSelectionManager.cpp
@@ -71,9 +71,15 @@ GuiSelectionManager::GuiSelectionManager(QObject * parent,
 	connect(availableLV->selectionModel(),
 	        SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 	        this, SLOT(availableChanged(QItemSelection, QItemSelection)));
+	connect(availableLV->selectionModel(),
+		SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
+		this, SLOT(updateButtons()));
 	connect(selectedLV->selectionModel(),
 	        SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 	        this, SLOT(selectedChanged(QItemSelection, QItemSelection)));
+	connect(selectedLV->selectionModel(),
+		SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
+		this, SLOT(updateButtons()));
 	connect(selectedLV->itemDelegate(), SIGNAL(commitData(QWidget*)),
 		this, SLOT(selectedEdited()));
 	connect(addPB, SIGNAL(clicked()),
@@ -101,6 +107,13 @@ void GuiSelectionManager::update()
 }
 
 
+void GuiSelectionManager::updateButtons()
+{
+	update();
+	updateHook();
+}
+
+
 QModelIndex GuiSelectionManager::getSelectedIndex(int const c) const
 {
 	QModelIndexList avail = availableLV->selectionModel()->selectedIndexes();
diff --git a/src/frontends/qt4/GuiSelectionManager.h b/src/frontends/qt4/GuiSelectionManager.h
index 68339ff162..c0b4ccc4c0 100644
--- a/src/frontends/qt4/GuiSelectionManager.h
+++ b/src/frontends/qt4/GuiSelectionManager.h
@@ -132,6 +132,8 @@ protected Q_SLOTS:
 	void availableLV_doubleClicked(const QModelIndex &);
 	///
 	bool eventFilter(QObject *, QEvent *);
+	///
+	void updateButtons();
 
 private:
 	///