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added wxFileSystem::FindFirst and FindNext

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4280 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
1999-10-31 22:05:10 +00:00
parent 6836465999
commit aaa66113df
6 changed files with 301 additions and 56 deletions
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70
include/wx/filesys.h
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@@ -3,6 +3,7 @@
// Purpose: class for opening files - virtual file system
// Author: Vaclav Slavik
// Copyright: (c) 1999 Vaclav Slavik
// RCS-ID: $Id$
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
@@ -93,6 +94,12 @@ class WXDLLEXPORT wxFileSystemHandler : public wxObject
// Returns NULL if opening failed.
// The location is always absolute path.
virtual wxString FindFirst(const wxString& spec, int flags = 0);
virtual wxString FindNext();
// Finds first/next file that matches spec wildcard. flags can be wxDIR for restricting
// the query to directories or wxFILE for files only or 0 for either.
// Returns filename or empty string if no more matching file exists
protected:
wxString GetProtocol(const wxString& location) const;
// returns protocol ("file", "http", "tar" etc.) The last (most right)
@@ -141,6 +148,40 @@ class WXDLLEXPORT wxFileSystem : public wxObject
{
DECLARE_DYNAMIC_CLASS(wxFileSystem)
public:
wxFileSystem() : wxObject() {m_Path = m_LastName = wxEmptyString; m_Handlers.DeleteContents(TRUE); m_FindFileHandler = NULL;}
void ChangePathTo(const wxString& location, bool is_dir = FALSE);
// sets the current location. Every call to OpenFile is
// relative to this location.
// NOTE !!
// unless is_dir = TRUE 'location' is *not* the directory but
// file contained in this directory
// (so ChangePathTo("dir/subdir/xh.htm") sets m_Path to "dir/subdir/")
wxString GetPath() const {return m_Path;}
wxFSFile* OpenFile(const wxString& location);
// opens given file and returns pointer to input stream.
// Returns NULL if opening failed.
// It first tries to open the file in relative scope
// (based on ChangePathTo()'s value) and then as an absolute
// path.
wxString FindFirst(const wxString& spec, int flags = 0);
wxString FindNext();
// Finds first/next file that matches spec wildcard. flags can be wxDIR for restricting
// the query to directories or wxFILE for files only or 0 for either.
// Returns filename or empty string if no more matching file exists
static void AddHandler(wxFileSystemHandler *handler);
// Adds FS handler.
// In fact, this class is only front-end to the FS hanlers :-)
static void CleanUpHandlers();
// remove all items from the m_Handlers list
private:
wxString m_Path;
// the path (location) we are currently in
@@ -151,33 +192,8 @@ class WXDLLEXPORT wxFileSystem : public wxObject
// name of last opened file (full path)
static wxList m_Handlers;
// list of FS handlers
public:
wxFileSystem() : wxObject() {m_Path = m_LastName = wxEmptyString; m_Handlers.DeleteContents(TRUE);}
void ChangePathTo(const wxString& location, bool is_dir = FALSE);
// sets the current location. Every call to OpenFile is
// relative to this location.
// NOTE !!
// unless is_dir = TRUE 'location' is *not* the directory but
// file contained in this directory
// (so ChangePathTo("dir/subdir/xh.htm") sets m_Path to "dir/subdir/")
wxString GetPath() const {return m_Path;}
wxFSFile* OpenFile(const wxString& location);
// opens given file and returns pointer to input stream.
// Returns NULL if opening failed.
// It first tries to open the file in relative scope
// (based on ChangePathTo()'s value) and then as an absolute
// path.
static void AddHandler(wxFileSystemHandler *handler);
// Adds FS handler.
// In fact, this class is only front-end to the FS hanlers :-)
static void CleanUpHandlers();
// remove all items from the m_Handlers list
wxFileSystemHandler *m_FindFileHandler;
// handler that succeed in FindFirst query
};