More encapsulation and add new class Signal for handling custom events.

src/GUI/DirectoryBrowser.cpp

@@ -0,0 +1,44 @@
+#include "GUI/DirectoryBrowser.hpp"
+#include "Utility/Paths.hpp"
+#include "Utility/ControlIDs.hpp"
+#include "Utility/Log.hpp"
+
+#include <wx/dataobj.h>
+#include <wx/dnd.h>
+
+cDirectoryBrowser::cDirectoryBrowser(wxWindow* window)
+    : wxGenericDirCtrl(window, BC_DirCtrl, wxDirDialogDefaultFolderStr, wxDefaultPosition,
+                       wxDefaultSize, wxDIRCTRL_SHOW_FILTERS,
+                       _("All files|*|Ogg files (*.ogg)|*.ogg|Wav files (*.wav)|*.wav|"
+                         "Flac files (*.flac)|*.flac"), 0)
+{
+    SetPath(USER_HOME_DIR);
+
+    Bind(wxEVT_DIRCTRL_FILEACTIVATED, &cDirectoryBrowser::OnClickDirCtrl, this, BC_DirCtrl);
+    Bind(wxEVT_TREE_BEGIN_DRAG, &cDirectoryBrowser::OnDragFromDirCtrl, this, this->GetTreeCtrl()->GetId());
+}
+
+void cDirectoryBrowser::OnClickDirCtrl(wxCommandEvent& event)
+{
+    wxArrayString path;
+    path.push_back(this->GetFilePath());
+
+    // TODO
+    // AddSamples(path);
+}
+
+void cDirectoryBrowser::OnDragFromDirCtrl(wxTreeEvent& event)
+{
+    wxFileDataObject file_data;
+    file_data.AddFile(this->GetPath(event.GetItem()));
+
+    wxDropSource drop_source(this);
+    drop_source.SetData(file_data);
+
+    // LogDragResult(drop_source.DoDragDrop());
+}
+
+cDirectoryBrowser::~cDirectoryBrowser()
+{
+
+}