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added and documented wxDir::HasFiles/SubDirs(), use the latter in wxDirDialog - it is several orders of magniture faster than wxFindFirstFile!

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11161 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2001-07-23 13:28:39 +00:00
parent 8f99a08fc0
commit d9ff0f91fb
3 changed files with 37 additions and 24 deletions
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11
include/wx/dir.h
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@@ -103,10 +103,17 @@ public:
const wxString& filespec = wxEmptyString,
int flags = wxDIR_DEFAULT) const;
// get next file in the enumeration started with either GetFirst() or
// GetFirstNormal()
// get next file in the enumeration started with GetFirst()
bool GetNext(wxString *filename) const;
// return true if this directory has any files in it
bool HasFiles(const wxString& spec = wxEmptyString)
{ wxString s; return GetFirst(&s, spec, wxDIR_FILES | wxDIR_HIDDEN); }
// return true if this directory has any subdirectories
bool HasSubDirs(const wxString& spec = wxEmptyString)
{ wxString s; return GetFirst(&s, spec, wxDIR_DIRS | wxDIR_HIDDEN); }
// enumerate all files in this directory and its subdirectories
//
// return the number of files found