began large scale restructure

app/widget/projectexplorer/CMakeLists.txt

@@ -0,0 +1,22 @@
+# Olive - Non-Linear Video Editor
+# Copyright (C) 2019 Olive Team
+#
+# 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 3 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.  If not, see <http://www.gnu.org/licenses/>.
+
+set(OLIVE_SOURCES
+  ${OLIVE_SOURCES}
+  widget/projectexplorer/projectexplorer.h
+  widget/projectexplorer/projectexplorer.cpp
+  PARENT_SCOPE
+)

app/widget/projectexplorer/projectexplorer.cpp

@@ -0,0 +1,17 @@
+#include "projectexplorer.h"
+
+ProjectExplorer::ProjectExplorer(QWidget *parent) :
+  QWidget(parent),
+  view_type_(TreeView)
+{
+}
+
+const ProjectExplorer::ViewType &ProjectExplorer::view_type()
+{
+  return view_type_;
+}
+
+void ProjectExplorer::set_view_type(const ProjectExplorer::ViewType &type)
+{
+  view_type_ = type;
+}

app/widget/projectexplorer/projectexplorer.h

@@ -0,0 +1,25 @@
+#ifndef PROJECTEXPLORER_H
+#define PROJECTEXPLORER_H
+
+#include <QWidget>
+
+class ProjectExplorer : public QWidget
+{
+public:
+  enum ViewType {
+    TreeView,
+    ListView,
+    IconView
+  };
+
+  ProjectExplorer(QWidget* parent);
+
+  const ViewType& view_type();
+  void set_view_type(const ViewType& type);
+
+private:
+  ViewType view_type_;
+
+};
+
+#endif // PROJECTEXPLORER_H