Re-organise the code a little...

support/pathrequester.cpp

@@ -0,0 +1,60 @@
+/*
+ * Cantata
+ *
+ * Copyright (c) 2011-2013 Craig Drummond <craig.p.drummond@gmail.com>
+ *
+ * ----
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "pathrequester.h"
+#include "icon.h"
+#include "localize.h"
+#include "utils.h"
+#include <QFileDialog>
+#include <QHBoxLayout>
+
+PathRequester::PathRequester(QWidget *parent)
+    : QWidget(parent)
+{
+    QHBoxLayout *layout=new QHBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    edit=new LineEdit(this);
+    btn=new QToolButton(this);
+    layout->addWidget(edit);
+    layout->addWidget(btn);
+    btn->setAutoRaise(true);
+    btn->setIcon(Icon("document-open"));
+    connect(btn, SIGNAL(clicked(bool)), SLOT(choose()));
+    connect(edit, SIGNAL(textChanged(const QString &)), SIGNAL(textChanged(const QString &)));
+}
+
+void PathRequester::choose()
+{
+    QString item=dirMode
+                    ? QFileDialog::getExistingDirectory(this, i18n("Select Folder"), edit->text())
+                    : QFileDialog::getOpenFileName(this, i18n("Select File"), Utils::getDir(edit->text()), filter);
+    if (!item.isEmpty()) {
+        edit->setText(item);
+    }
+}
+
+void PathRequester::setEnabled(bool e)
+{
+    edit->setEnabled(e);
+    btn->setEnabled(e);
+}