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[wxWidgets.git] / src / palmos / dir.cpp

diff --git a/src/palmos/dir.cpp b/src/palmos/dir.cpp
index 7fa7d61f862f14e55319013c671d21ddd7cde400..2883ef2649b5825bb3f8681facfea0134fdc0eeb 100644 (file)
--- a/src/palmos/dir.cpp
+++ b/src/palmos/dir.cpp
@@ -32,6 +32,8 @@
 #include "wx/dir.h"
 #include "wx/filefn.h"          // for wxDirExists()
 
+#include "pfall.h"
+
 // ----------------------------------------------------------------------------
 // define the types and functions used for file searching
 // ----------------------------------------------------------------------------
@@ -54,10 +56,148 @@
 // private classes
 // ----------------------------------------------------------------------------
 
+// this class stores everything we need to enumerate the files
+class wxDirData
+{
+public:
+    wxDirData(const wxString& dirname);
+    ~wxDirData();
+
+    bool IsOk() const { return m_dir != NULL; }
+
+    void SetFileSpec(const wxString& filespec) { m_filespec = filespec; }
+    void SetFlags(int flags) { m_flags = flags; }
+
+    void Close();
+    bool Read(wxString *filename);
+
+    const wxString& GetName() const { return m_dirname; }
+
+private:
+    void     *m_dir;
+
+    wxString m_dirname;
+    wxString m_filespec;
+
+    int      m_flags;
+};
+
 // ============================================================================
 // implementation
 // ============================================================================
 
+// ----------------------------------------------------------------------------
+// wxDirData
+// ----------------------------------------------------------------------------
+
+wxDirData::wxDirData(const wxString& dirname)
+         : m_dirname(dirname)
+{
+    m_dir = NULL;
+
+    // throw away the trailing slashes
+    size_t n = m_dirname.length();
+    wxCHECK_RET( n, _T("empty dir name in wxDir") );
+
+    while ( n > 0 && m_dirname[--n] == '/' )
+        ;
+
+    m_dirname.Truncate(n + 1);
+
+    // do open the dir
+    //m_dir = opendir(m_dirname.fn_str());
+}
+
+wxDirData::~wxDirData()
+{
+    Close ();
+}
+
+void wxDirData::Close()
+{
+    if ( m_dir )
+    {
+        if ( svfs_dir_endfind (m_dir) != 0 )
+        {
+            wxLogLastError(_T("svfs_dir_endfind"));
+        }
+        m_dir = NULL;
+    }
+}
+
+bool wxDirData::Read(wxString *filename)
+{
+    //dirent *de = NULL;    // just to silence compiler warnings
+    int ret;
+    char tmpbuf[300];
+    bool matches = false;
+    size_t flags_search;
+
+    // speed up string concatenation in the loop a bit
+    wxString path = m_dirname;
+    path += _T('/');
+    path.reserve(path.length() + 255);
+
+    wxString de_d_name;
+    de_d_name.reserve(500);
+    flags_search = 0;
+    if (wxDIR_DIRS & m_flags) {
+        flags_search |= SDIR_DIRS;
+    }
+    if (wxDIR_FILES & m_flags) {
+        flags_search |= SDIR_FILES;
+    }
+    if (NULL == m_dir) {
+#ifdef _PACC_VER
+// walk around the PalmOS pacc compiler bug
+        ret = svfs_dir_findfirst (m_dirname.fn_str().data(), &m_dir, tmpbuf, sizeof (tmpbuf), flags_search);
+#else
+         ret = svfs_dir_findfirst (m_dirname.fn_str(), &m_dir, tmpbuf, sizeof (tmpbuf), flags_search);
+#endif
+    } else {
+        ret = svfs_dir_findnext (m_dir, tmpbuf, sizeof (tmpbuf));
+    }
+    for (; ret > 0; ) {
+
+#if wxUSE_UNICODE
+        de_d_name = wxString(tmpbuf, *wxConvFileName);
+#else
+        de_d_name = tmpbuf;
+#endif
+
+        // don't return "." and ".." unless asked for
+        if ( tmpbuf[0] == '.' &&
+             ((tmpbuf[1] == '.' && tmpbuf[2] == '\0') ||
+              (tmpbuf[1] == '\0')) )
+        {
+            if ( !(m_flags & wxDIR_DOTDOT) )
+                continue;
+
+            // we found a valid match
+            break;
+        }
+
+        // check the name
+        if ( m_filespec.empty() )
+        {
+            matches = m_flags & wxDIR_HIDDEN ? true : tmpbuf[0] != '.';
+        }
+        else
+        {
+            // test against the pattern
+            matches = wxMatchWild(m_filespec, de_d_name,
+                                  !(m_flags & wxDIR_HIDDEN));
+        }
+        if (matches)
+            break;
+        ret = svfs_dir_findnext (m_dir, tmpbuf, sizeof (tmpbuf));
+    }
+
+    *filename = de_d_name;
+
+    return true;
+}
+
 // ----------------------------------------------------------------------------
 // wxDir helpers
 // ----------------------------------------------------------------------------
@@ -65,7 +205,7 @@
 /* static */
 bool wxDir::Exists(const wxString& dir)
 {
-    return false;
+    return wxDirExists(dir);
 }
 
 // ----------------------------------------------------------------------------
@@ -74,27 +214,42 @@ bool wxDir::Exists(const wxString& dir)
 
 wxDir::wxDir(const wxString& dirname)
 {
+    m_data = NULL;
+    (void)Open(dirname);
 }
 
 bool wxDir::Open(const wxString& dirname)
 {
-    return false;
+    delete M_DIR;
+    m_data = new wxDirData(dirname);
+
+    return true;
 }
 
 bool wxDir::IsOpened() const
 {
-    return false;
+    return m_data != NULL;
 }
 
 wxString wxDir::GetName() const
 {
     wxString name;
+    if ( m_data )
+    {
+        name = M_DIR->GetName();
+        if ( !name.empty() && (name.Last() == _T('/')) )
+        {
+            // chop off the last (back)slash
+            name.Truncate(name.length() - 1);
+        }
+    }
 
     return name;
 }
 
 wxDir::~wxDir()
 {
+    delete M_DIR;
 }
 
 // ----------------------------------------------------------------------------
@@ -105,11 +260,17 @@ bool wxDir::GetFirst(wxString *filename,
                      const wxString& filespec,
                      int flags) const
 {
-    return false;
+    wxCHECK_MSG( IsOpened(), false, _T("must wxDir::Open() first") );
+    M_DIR->Close();
+    M_DIR->SetFileSpec(filespec);
+    M_DIR->SetFlags(flags);
+    return GetNext(filename);
 }
 
 bool wxDir::GetNext(wxString *filename) const
 {
-    return false;
+    wxCHECK_MSG( IsOpened(), false, _T("must wxDir::Open() first") );
+    wxCHECK_MSG( filename, false, _T("bad pointer in wxDir::GetNext()") );
+    return M_DIR->Read(filename);
 }