--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/util.cpp	Sat Jun 08 16:21:40 2019 +0900
@@ -0,0 +1,69 @@
+// Filename   : util.cpp
+// Last Change: 2019-06-07 ‹à 12:32:39.
+//
+#include "util.h"
+
+/*** Utility Class ***/
+// FileList Class
+FileList::FileList()
+{
+}
+
+FileList::~FileList()
+{
+}
+
+wxArrayString FileList::Update( void )
+{
+    unsigned int m = wxDir::GetAllFiles( m_dir, &m_files, wxT("*.jpg"), wxDIR_FILES );
+    for ( int i = 0; i < m; i++ ) {
+        //wxFileName filename( m_files[i] );
+    }
+	return m_files;
+}
+
+
+/*** Utility Function ***/
+void MsgBox( wxString msg )
+{
+    wxMessageBox( msg );
+}
+
+void MsgBox( int n )
+{
+    wxMessageBox( wxString::Format( "%d", n ) );
+}
+
+
+wxRect Geo2Rect( wxString geo )
+{
+    long w, h, x, y;
+    wxString sw = geo.BeforeFirst( 'x' );
+    wxString sh = geo.AfterFirst( 'x' ).BeforeFirst( '+' );
+    wxString sx = geo.AfterFirst( '+' ).BeforeFirst( '+' );
+    wxString sy = geo.AfterLast( '+' );
+
+    sw.ToLong( &w, 10 );
+    sh.ToLong( &h, 10 );
+    sx.ToLong( &x, 10 );
+    sy.ToLong( &y, 10 );
+
+    return wxRect( (int)x, (int)y, (int)w, (int)h );
+}
+
+wxString Rect2Geo( wxRect rect )
+{
+	return wxString::Format( "%dx%d+%d+%d", rect.width, rect.height, rect.x, rect.y );
+}
+
+void MaskRect( wxImage image, wxRect rect, int r, int g, int b )
+{
+}
+
+bool IsBlack( int r, int g, int b ) 
+{
+    int th = 38;
+    if ( r < th && g < th && b < th ) return true;
+    return false;
+}
+