Implement expand and collapse for DB view

Sounds easy, right? It is, if you don't try to create a QIcon from a
QChar. That took me a while...

First, it's not a good idea to fill the QPixmap for the QIcon with
transparency. That gives you a random background. Fill it with palette
color instead.

Then there's QFont's pixelSize(). I have absolutely no idea how it
corresponds to the pixmap's size, but roughly double the width of the
pixmap is a good guess...

1 files changed, 14 insertions, 0 deletions

diff --git a/helper.h b/helper.h
new file mode 100644
index 0000000..9b4a5c9
--- /dev/null
+++ b/helper.h
@@ -0,0 +1,14 @@
+#ifndef HELPER_H
+#define HELPER_H
+
+#include <QIcon>
+#include <QChar>
+
+class QAction;
+
+namespace Helper {
+    QIcon iconFromQChar(const QChar &c, int pixelSize);
+    QAction* createSeparator(QObject *parent);
+}
+
+#endif // HELPER_H