Eliminate a warning

[wxWidgets.git] / src / common / dircmn.cpp

diff --git a/src/common/dircmn.cpp b/src/common/dircmn.cpp
index 801e2d1f9f9b059c89490de38bc91286ea6f64f3..8b5b453db056951d39ca9031bfac3e2f2025c909 100644 (file)
--- a/src/common/dircmn.cpp
+++ b/src/common/dircmn.cpp
@@ -17,12 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-/* this is done in platform-specific files
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "dir.h"
-#endif
-*/
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -35,9 +29,11 @@
     #include "wx/log.h"
     #include "wx/intl.h"
     #include "wx/filefn.h"
+    #include "wx/arrstr.h"
 #endif //WX_PRECOMP
 
 #include "wx/dir.h"
+#include "wx/filename.h"
 
 // ============================================================================
 // implementation
@@ -59,16 +55,16 @@ wxDirTraverser::OnOpenError(const wxString& WXUNUSED(dirname))
 
 // dumb generic implementation
 
-bool wxDir::HasFiles(const wxString& spec)
+bool wxDir::HasFiles(const wxString& spec) const
 {
     wxString s;
     return GetFirst(&s, spec, wxDIR_FILES | wxDIR_HIDDEN);
 }
 
 // we have a (much) faster version for Unix
-#if (defined(__CYGWIN__) && defined(__WINDOWS__)) || !defined(__UNIX_LIKE__) || defined(__WXMAC__)
+#if (defined(__CYGWIN__) && defined(__WINDOWS__)) || !defined(__UNIX_LIKE__) || defined(__EMX__) || defined(__WINE__)
 
-bool wxDir::HasSubDirs(const wxString& spec)
+bool wxDir::HasSubDirs(const wxString& spec) const
 {
     wxString s;
     return GetFirst(&s, spec, wxDIR_DIRS | wxDIR_HIDDEN);
@@ -98,9 +94,9 @@ size_t wxDir::Traverse(wxDirTraverser& sink,
     if ( flags & wxDIR_DIRS )
     {
         wxString dirname;
-        for ( bool cont = GetFirst(&dirname, _T(""), wxDIR_DIRS | wxDIR_HIDDEN);
+        for ( bool cont = GetFirst(&dirname, wxEmptyString, wxDIR_DIRS | (flags & wxDIR_HIDDEN) );
               cont;
-              cont = GetNext(&dirname) )
+              cont = cont && GetNext(&dirname) )
         {
             const wxString fulldirname = prefix + dirname;
 
@@ -242,3 +238,123 @@ size_t wxDir::GetAllFiles(const wxString& dirname,
     return nFiles;
 }
 
+// ----------------------------------------------------------------------------
+// wxDir::FindFirst()
+// ----------------------------------------------------------------------------
+
+class wxDirTraverserFindFirst : public wxDirTraverser
+{
+public:
+    wxDirTraverserFindFirst() { }
+
+    virtual wxDirTraverseResult OnFile(const wxString& filename)
+    {
+        m_file = filename;
+        return wxDIR_STOP;
+    }
+
+    virtual wxDirTraverseResult OnDir(const wxString& WXUNUSED(dirname))
+    {
+        return wxDIR_CONTINUE;
+    }
+
+    const wxString& GetFile() const
+    {
+        return m_file;
+    }
+
+private:
+    wxString m_file;
+
+    DECLARE_NO_COPY_CLASS(wxDirTraverserFindFirst)
+};
+
+/* static */
+wxString wxDir::FindFirst(const wxString& dirname,
+                          const wxString& filespec,
+                          int flags)
+{
+    wxDir dir(dirname);
+    if ( dir.IsOpened() )
+    {
+        wxDirTraverserFindFirst traverser;
+
+        dir.Traverse(traverser, filespec, flags | wxDIR_FILES);
+        return traverser.GetFile();
+    }
+
+    return wxEmptyString;
+}
+
+
+// ----------------------------------------------------------------------------
+// wxDir::GetTotalSize()
+// ----------------------------------------------------------------------------
+
+#if wxUSE_LONGLONG
+
+class wxDirTraverserSumSize : public wxDirTraverser
+{
+public:
+    wxDirTraverserSumSize() { }
+
+    virtual wxDirTraverseResult OnFile(const wxString& filename)
+    {
+        wxULongLong sz = wxFileName::GetSize(filename);
+
+        // wxFileName::GetSize won't use this class again as
+        // we're passing it a file and not a directory;
+        // thus we are sure to avoid an endless loop
+        if (sz == wxInvalidSize)
+        {
+            // if the GetSize() failed (this can happen because e.g. a
+            // file is locked by another process), we can proceed but
+            // we need to at least warn the user that the resulting
+            // final size could be not reliable (if e.g. the locked
+            // file is very big).
+            m_skippedFiles.Add(filename);
+            return wxDIR_CONTINUE;
+        }
+
+        m_sz += sz;
+        return wxDIR_CONTINUE;
+    }
+
+    virtual wxDirTraverseResult OnDir(const wxString& WXUNUSED(dirname))
+    {
+        return wxDIR_CONTINUE;
+    }
+
+    wxULongLong GetTotalSize() const
+        { return m_sz; }
+    wxArrayString &FilesSkipped()
+        { return m_skippedFiles; }
+
+protected:
+    wxULongLong m_sz;
+    wxArrayString m_skippedFiles;
+};
+
+wxULongLong wxDir::GetTotalSize(const wxString &dirname, wxArrayString *filesSkipped)
+{
+    if (!wxDirExists(dirname))
+        return wxInvalidSize;
+
+    // to get the size of this directory and its contents we need
+    // to recursively walk it...
+    wxDir dir(dirname);
+    if ( !dir.IsOpened() )
+        return wxInvalidSize;
+
+    wxDirTraverserSumSize traverser;
+    if (dir.Traverse(traverser) == (size_t)-1 ||
+        traverser.GetTotalSize() == 0)
+        return wxInvalidSize;
+
+    if (filesSkipped)
+        *filesSkipped = traverser.FilesSkipped();
+
+    return traverser.GetTotalSize();
+}
+
+#endif // wxUSE_LONGLONG