added alpha channel support to wxDFB's wxBitmap

[wxWidgets.git] / include / wx / filesys.h

diff --git a/include/wx/filesys.h b/include/wx/filesys.h
index b819282152100c16e615336fcb0d349f1fee994f..02ae931a03de2da180c6f744e9ba8a4e9e02ae3b 100644 (file)
--- a/include/wx/filesys.h
+++ b/include/wx/filesys.h
@@ -1,20 +1,16 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        filesys.h
+// Name:        wx/filesys.h

 // Purpose:     class for opening files - virtual file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // RCS-ID:      $Id$
 // Purpose:     class for opening files - virtual file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 1999 Vaclav Slavik
 // RCS-ID:      $Id$

-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __FILESYS_H__
 #define __FILESYS_H__
 
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef __FILESYS_H__
 #define __FILESYS_H__
 

-#if defined(__GNUG__) && !defined(__APPLE__)
-#pragma interface "filesys.h"
-#endif
-
-#include "wx/setup.h"
+#include "wx/defs.h"

 
 #if !wxUSE_STREAMS
 #error You cannot compile virtual file systems without wxUSE_STREAMS
 
 #if !wxUSE_STREAMS
 #error You cannot compile virtual file systems without wxUSE_STREAMS


@@ -27,12 +23,13 @@
 #if wxUSE_FILESYSTEM
 
 #include "wx/stream.h"
 #if wxUSE_FILESYSTEM
 
 #include "wx/stream.h"

-#include "wx/url.h"

 #include "wx/datetime.h"
 #include "wx/datetime.h"

+#include "wx/filename.h"
+#include "wx/hashmap.h"

 
 

-class wxFSFile;
-class wxFileSystemHandler;
-class wxFileSystem;
+class WXDLLIMPEXP_BASE wxFSFile;
+class WXDLLIMPEXP_BASE wxFileSystemHandler;
+class WXDLLIMPEXP_BASE wxFileSystem;

 
 //--------------------------------------------------------------------------------
 // wxFSFile
 
 //--------------------------------------------------------------------------------
 // wxFSFile


@@ -41,43 +38,68 @@ class wxFileSystem;
 //                  (in 'index.htm#chapter2', 'chapter2' is anchor)
 //--------------------------------------------------------------------------------
 
 //                  (in 'index.htm#chapter2', 'chapter2' is anchor)
 //--------------------------------------------------------------------------------
 

-class WXDLLEXPORT wxFSFile : public wxObject
+class WXDLLIMPEXP_BASE wxFSFile : public wxObject

 {
 public:
     wxFSFile(wxInputStream *stream, const wxString& loc,
 {
 public:
     wxFSFile(wxInputStream *stream, const wxString& loc,

-             const wxString& mimetype, const wxString& anchor,
-             wxDateTime modif)
+             const wxString& mimetype, const wxString& anchor
+#if wxUSE_DATETIME
+             , wxDateTime modif
+#endif // wxUSE_DATETIME
+             )

     {
         m_Stream = stream;
         m_Location = loc;
     {
         m_Stream = stream;
         m_Location = loc;

-        m_MimeType = mimetype; m_MimeType.MakeLower();
+        m_MimeType = mimetype.Lower();

         m_Anchor = anchor;
         m_Anchor = anchor;

+#if wxUSE_DATETIME

         m_Modif = modif;
         m_Modif = modif;

+#endif // wxUSE_DATETIME
+    }
+
+    virtual ~wxFSFile() { delete m_Stream; }
+
+    // returns stream. This doesn't give away ownership of the stream object.
+    wxInputStream *GetStream() const { return m_Stream; }
+
+    // gives away the ownership of the current stream.
+    wxInputStream *DetachStream()
+    {
+        wxInputStream *stream = m_Stream;
+        m_Stream = NULL;
+        return stream;

     }
     }

-    virtual ~wxFSFile() { if (m_Stream) delete m_Stream; }

 
 

-    // returns stream. This doesn't _create_ stream, it only returns
-    // pointer to it!!
-    wxInputStream *GetStream() const {return m_Stream;}
+    // deletes the current stream and takes ownership of another.
+    void SetStream(wxInputStream *stream)
+    {
+        delete m_Stream;
+        m_Stream = stream;
+    }

 
     // returns file's mime type
 
     // returns file's mime type

-    const wxString& GetMimeType() const {return m_MimeType;}
+    const wxString& GetMimeType() const;

 
     // returns the original location (aka filename) of the file
 
     // returns the original location (aka filename) of the file

-    const wxString& GetLocation() const {return m_Location;}
+    const wxString& GetLocation() const { return m_Location; }

 
 

-    const wxString& GetAnchor() const {return m_Anchor;}
+    const wxString& GetAnchor() const { return m_Anchor; }

 
 

-    wxDateTime GetModificationTime() const {return m_Modif;}
+#if wxUSE_DATETIME
+    wxDateTime GetModificationTime() const { return m_Modif; }
+#endif // wxUSE_DATETIME

 
 private:
     wxInputStream *m_Stream;
     wxString m_Location;
     wxString m_MimeType;
     wxString m_Anchor;
 
 private:
     wxInputStream *m_Stream;
     wxString m_Location;
     wxString m_MimeType;
     wxString m_Anchor;

+#if wxUSE_DATETIME

     wxDateTime m_Modif;
     wxDateTime m_Modif;

+#endif // wxUSE_DATETIME

 
     DECLARE_ABSTRACT_CLASS(wxFSFile)
 
     DECLARE_ABSTRACT_CLASS(wxFSFile)

+    DECLARE_NO_COPY_CLASS(wxFSFile)

 };
 
 
 };
 
 


@@ -91,12 +113,12 @@ private:
 //                  kinds of files (HTPP, FTP, local, tar.gz etc..)
 //--------------------------------------------------------------------------------
 
 //                  kinds of files (HTPP, FTP, local, tar.gz etc..)
 //--------------------------------------------------------------------------------
 

-class WXDLLEXPORT wxFileSystemHandler : public wxObject
+class WXDLLIMPEXP_BASE wxFileSystemHandler : public wxObject

 {
 public:
     wxFileSystemHandler() : wxObject() {}
 
 {
 public:
     wxFileSystemHandler() : wxObject() {}
 

-    // returns TRUE if this handler is able to open given location
+    // returns true if this handler is able to open given location

     virtual bool CanOpen(const wxString& location) = 0;
 
     // opens given file and returns pointer to input stream.
     virtual bool CanOpen(const wxString& location) = 0;
 
     // opens given file and returns pointer to input stream.


@@ -110,28 +132,28 @@ public:
     virtual wxString FindFirst(const wxString& spec, int flags = 0);
     virtual wxString FindNext();
 
     virtual wxString FindFirst(const wxString& spec, int flags = 0);
     virtual wxString FindNext();
 

+    // Returns MIME type of the file - w/o need to open it
+    // (default behaviour is that it returns type based on extension)
+    static wxString GetMimeTypeFromExt(const wxString& location);
+

 protected:
     // returns protocol ("file", "http", "tar" etc.) The last (most right)
     // protocol is used:
     // {it returns "tar" for "file:subdir/archive.tar.gz#tar:/README.txt"}
 protected:
     // returns protocol ("file", "http", "tar" etc.) The last (most right)
     // protocol is used:
     // {it returns "tar" for "file:subdir/archive.tar.gz#tar:/README.txt"}

-    wxString GetProtocol(const wxString& location) const;
+    static wxString GetProtocol(const wxString& location);

 
     // returns left part of address:
     // {it returns "file:subdir/archive.tar.gz" for "file:subdir/archive.tar.gz#tar:/README.txt"}
 
     // returns left part of address:
     // {it returns "file:subdir/archive.tar.gz" for "file:subdir/archive.tar.gz#tar:/README.txt"}

-    wxString GetLeftLocation(const wxString& location) const;
+    static wxString GetLeftLocation(const wxString& location);

 
     // returns anchor part of address:
     // {it returns "anchor" for "file:subdir/archive.tar.gz#tar:/README.txt#anchor"}
     // NOTE:  anchor is NOT a part of GetLeftLocation()'s return value
 
     // returns anchor part of address:
     // {it returns "anchor" for "file:subdir/archive.tar.gz#tar:/README.txt#anchor"}
     // NOTE:  anchor is NOT a part of GetLeftLocation()'s return value

-    wxString GetAnchor(const wxString& location) const;
+    static wxString GetAnchor(const wxString& location);

 
     // returns right part of address:
     // {it returns "/README.txt" for "file:subdir/archive.tar.gz#tar:/README.txt"}
 
     // returns right part of address:
     // {it returns "/README.txt" for "file:subdir/archive.tar.gz#tar:/README.txt"}

-    wxString GetRightLocation(const wxString& location) const;
-
-    // Returns MIME type of the file - w/o need to open it
-    // (default behaviour is that it returns type based on extension)
-    wxString GetMimeTypeFromExt(const wxString& location);
+    static wxString GetRightLocation(const wxString& location);

 
     DECLARE_ABSTRACT_CLASS(wxFileSystemHandler)
 };
 
     DECLARE_ABSTRACT_CLASS(wxFileSystemHandler)
 };


@@ -145,18 +167,27 @@ protected:
 //                  kinds of files (HTPP, FTP, local, tar.gz etc..)
 //--------------------------------------------------------------------------------
 
 //                  kinds of files (HTPP, FTP, local, tar.gz etc..)
 //--------------------------------------------------------------------------------
 

-class WXDLLEXPORT wxFileSystem : public wxObject
+// Open Bit Flags
+enum {
+    wxFS_READ = 1,      // Open for reading
+    wxFS_SEEKABLE = 4   // Returned stream will be seekable
+};
+
+WX_DECLARE_VOIDPTR_HASH_MAP_WITH_DECL(wxFileSystemHandler*, wxFSHandlerHash, class WXDLLIMPEXP_BASE);
+
+class WXDLLIMPEXP_BASE wxFileSystem : public wxObject

 {
 public:
 {
 public:

-    wxFileSystem() : wxObject() {m_Path = m_LastName = wxEmptyString; m_Handlers.DeleteContents(TRUE); m_FindFileHandler = NULL;}
+    wxFileSystem() : wxObject() { m_FindFileHandler = NULL;}
+    virtual ~wxFileSystem();

 
     // sets the current location. Every call to OpenFile is
     // relative to this location.
     // NOTE !!
 
     // sets the current location. Every call to OpenFile is
     // relative to this location.
     // NOTE !!

-    // unless is_dir = TRUE 'location' is *not* the directory but
+    // 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/")
     // file contained in this directory
     // (so ChangePathTo("dir/subdir/xh.htm") sets m_Path to "dir/subdir/")

-    void ChangePathTo(const wxString& location, bool is_dir = FALSE);
+    void ChangePathTo(const wxString& location, bool is_dir = false);

 
     wxString GetPath() const {return m_Path;}
 
 
     wxString GetPath() const {return m_Path;}
 


@@ -165,7 +196,7 @@ public:
     // It first tries to open the file in relative scope
     // (based on ChangePathTo()'s value) and then as an absolute
     // path.
     // It first tries to open the file in relative scope
     // (based on ChangePathTo()'s value) and then as an absolute
     // path.

-    wxFSFile* OpenFile(const wxString& location);
+    wxFSFile* OpenFile(const wxString& location, int flags = wxFS_READ);

 
     // 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.
 
     // 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.


@@ -173,21 +204,33 @@ public:
     wxString FindFirst(const wxString& spec, int flags = 0);
     wxString FindNext();
 
     wxString FindFirst(const wxString& spec, int flags = 0);
     wxString FindNext();
 

+    // find a file in a list of directories, returns false if not found
+    bool FindFileInPath(wxString *pStr,
+                        const wxString& path, const wxString& file);
+

     // Adds FS handler.
     // Adds FS handler.

-    // In fact, this class is only front-end to the FS hanlers :-)
+    // In fact, this class is only front-end to the FS handlers :-)

     static void AddHandler(wxFileSystemHandler *handler);
 
     static void AddHandler(wxFileSystemHandler *handler);
 

+    // Removes FS handler
+    static wxFileSystemHandler* RemoveHandler(wxFileSystemHandler *handler);
+
+    // Returns true if there is a handler which can open the given location.
+    static bool HasHandlerForPath(const wxString& location);
+

     // remove all items from the m_Handlers list
     static void CleanUpHandlers();
 
     // Returns the native path for a file URL
     // remove all items from the m_Handlers list
     static void CleanUpHandlers();
 
     // Returns the native path for a file URL

-    static wxString URLToNativePath( const wxString& url );
+    static wxFileName URLToFileName(const wxString& url);

 
     // Returns the file URL for a native path
 
     // Returns the file URL for a native path

-    static wxString NativePathToURL( const wxString& path );
+    static wxString FileNameToURL(const wxFileName& filename);

 
 
 protected:
 
 
 protected:

+    wxFileSystemHandler *MakeLocal(wxFileSystemHandler *h);
+

     wxString m_Path;
             // the path (location) we are currently in
             // this is path, not file!
     wxString m_Path;
             // the path (location) we are currently in
             // this is path, not file!


@@ -199,8 +242,11 @@ protected:
             // list of FS handlers
     wxFileSystemHandler *m_FindFileHandler;
             // handler that succeed in FindFirst query
             // list of FS handlers
     wxFileSystemHandler *m_FindFileHandler;
             // handler that succeed in FindFirst query

+    wxFSHandlerHash m_LocalHandlers;
+            // Handlers local to this instance

 
     DECLARE_DYNAMIC_CLASS(wxFileSystem)
 
     DECLARE_DYNAMIC_CLASS(wxFileSystem)

+    DECLARE_NO_COPY_CLASS(wxFileSystem)

 };
 
 
 };
 
 


@@ -228,7 +274,7 @@ special characters :
 */
 
 
 */
 
 

-class wxLocalFSHandler : public wxFileSystemHandler
+class WXDLLIMPEXP_BASE wxLocalFSHandler : public wxFileSystemHandler

 {
 public:
     virtual bool CanOpen(const wxString& location);
 {
 public:
     virtual bool CanOpen(const wxString& location);