cleanup

[wxWidgets.git] / src / mac / carbon / clipbrd.cpp

diff --git a/src/mac/carbon/clipbrd.cpp b/src/mac/carbon/clipbrd.cpp
index 28a4b9ef3f793e2311c40ba9c4433c6c8ddfbf47..99a8fba35c5af8a98508d5c99755fa84a5778a73 100644 (file)
--- a/src/mac/carbon/clipbrd.cpp
+++ b/src/mac/carbon/clipbrd.cpp
@@ -1,236 +1,261 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        clipbrd.cpp
+// Name:        src/mac/carbon/clipbrd.cpp

 // Purpose:     Clipboard functionality
 // Purpose:     Clipboard functionality

-// Author:      AUTHOR
+// Author:      Stefan Csomor;
+//              Generalized clipboard implementation by Matthew Flatt

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     1998-01-01

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) Stefan Csomor
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation
-#pragma implementation "clipbrd.h"
+#include "wx/wxprec.h"
+
+#if wxUSE_CLIPBOARD
+
+#include "wx/clipbrd.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/utils.h"
+    #include "wx/frame.h"
+    #include "wx/bitmap.h"

 #endif
 
 #endif
 

-#include "wx/app.h"
-#include "wx/frame.h"
-#include "wx/bitmap.h"
-#include "wx/utils.h"

 #include "wx/metafile.h"
 #include "wx/metafile.h"

-#include "wx/clipbrd.h"
+
+#include "wx/mac/uma.h"
+
+#define wxUSE_DATAOBJ 1

 
 #include <string.h>
 
 
 #include <string.h>
 

-#if !USE_SHARED_LIBRARY
+
+// the trace mask we use with wxLogTrace() - call
+// wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here
+// (there will be a *lot* of them!)
+static const wxChar *TRACE_CLIPBOARD = wxT("clipboard");
+

 IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)
 IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)

-IMPLEMENT_ABSTRACT_CLASS(wxClipboardClient, wxObject)
-#endif

 
 

-bool wxOpenClipboard()
-{
-    return TRUE;
-}
+// in order to keep the binary interface the same this class
+// serves just to have a few additional member variables inside
+// the clipboard class

 
 

-bool wxCloseClipboard()
+class wxMacBinaryCompatHelper : public wxDataObject

 {
 {

-    return FALSE;
-}
+public :
+    wxMacBinaryCompatHelper() 
+    {
+        m_trueData = NULL;
+    }

 
 

-bool wxEmptyClipboard()
-{
-               ZeroScrap() ;
-    return FALSE;
-}
+    ~wxMacBinaryCompatHelper() 
+    {
+        if (m_trueData != NULL)
+    {
+            delete m_trueData;
+            m_trueData = NULL;
+        }
+    }
+
+    virtual wxDataFormat GetPreferredFormat(Direction dir = Get) const 
+        {
+        return wxDataFormat();
+    }
+
+    virtual size_t GetFormatCount(Direction dir = Get) const 
+                {
+        return 0;
+                    }
+
+    virtual void GetAllFormats(wxDataFormat *formats,
+                               Direction dir = Get) const
+                {
+    }
+
+    virtual size_t GetDataSize(const wxDataFormat& format) const
+    {
+        return 0;
+    }
+
+    virtual bool GetDataHere(const wxDataFormat& format, void *buf) const
+    {
+        return false;
+    }
+
+    // only relevant from here on
+
+    wxDataObject* m_trueData;
+    wxCFRef<PasteboardRef> m_pasteboard;
+};
+
+#define M_CLIPBOARD ((wxMacBinaryCompatHelper*)m_data)

 
 

-bool wxClipboardOpen()
+wxClipboard::wxClipboard()

 {
 {

-    // TODO
-    return FALSE;
+    m_open = false;
+    m_data = new wxMacBinaryCompatHelper() ;
+    PasteboardRef clipboard = 0;
+    OSStatus err = PasteboardCreate( kPasteboardClipboard, &clipboard );
+    if (err != noErr)
+    {
+        wxLogSysError( wxT("Failed to create the clipboard.") );
+    }
+    M_CLIPBOARD->m_pasteboard.reset(clipboard);

 }
 
 }
 

-bool wxIsClipboardFormatAvailable(int dataFormat)
+wxClipboard::~wxClipboard()

 {
 {

-    // TODO
-    return FALSE;
+    M_CLIPBOARD->m_pasteboard.reset((PasteboardRef)0);
+        delete m_data;

 }
 
 }
 

-bool wxSetClipboardData(int dataFormat, wxObject *obj, int width, int height)
+void wxClipboard::Clear()

 {
 {

-    // TODO
-    return FALSE;
+    if (M_CLIPBOARD->m_trueData != NULL)
+    {
+        delete M_CLIPBOARD->m_trueData;
+        M_CLIPBOARD->m_trueData = NULL;
+    }
+
+    OSStatus err = PasteboardClear( M_CLIPBOARD->m_pasteboard );
+    if (err != noErr)
+    {
+        wxLogSysError( wxT("Failed to empty the clipboard.") );
+    }

 }
 
 }
 

-wxObject *wxGetClipboardData(int dataFormat, long *len)
+bool wxClipboard::Flush()

 {
 {

-    // TODO
-    return NULL;
+    return false;

 }
 
 }
 

-int  wxEnumClipboardFormats(int dataFormat)
+bool wxClipboard::Open()

 {
 {

-    // TODO
-    return 0;
+    wxCHECK_MSG( !m_open, false, wxT("clipboard already open") );
+
+    m_open = true;
+
+    return true;

 }
 
 }
 

-int  wxRegisterClipboardFormat(char *formatName)
+bool wxClipboard::IsOpened() const

 {
 {

-    // TODO
-    return 0;
+    return m_open;

 }
 
 }
 

-bool wxGetClipboardFormatName(int dataFormat, char *formatName, int maxCount)
+bool wxClipboard::SetData( wxDataObject *data )

 {
 {

-    // TODO
-    return FALSE;
-}
+    if ( IsUsingPrimarySelection() )
+        return false;

 
 

-/*
- * Generalized clipboard implementation by Matthew Flatt
- */
+    wxCHECK_MSG( m_open, false, wxT("clipboard not open") );
+    wxCHECK_MSG( data, false, wxT("data is invalid") );

 
 

-wxClipboard *wxTheClipboard = NULL;
+    Clear();

 
 

-void wxInitClipboard()
-{
-  if (!wxTheClipboard)
-    wxTheClipboard = new wxClipboard;
+    // as we can only store one wxDataObject,
+    // this is the same in this implementation
+    return AddData( data );

 }
 
 }
 

-wxClipboard::wxClipboard()
+bool wxClipboard::AddData( wxDataObject *data )

 {
 {

-  clipOwner = NULL;
-  cbString = NULL;
-}
+    if ( IsUsingPrimarySelection() )
+        return false;

 
 

-wxClipboard::~wxClipboard()
-{
-  if (clipOwner)
-    clipOwner->BeingReplaced();
-  if (cbString)
-    delete[] cbString;
-}
+    wxCHECK_MSG( m_open, false, wxT("clipboard not open") );
+    wxCHECK_MSG( data, false, wxT("data is invalid") );

 
 

-static int FormatStringToID(char *str)
-{
-  if (!strcmp(str, "TEXT"))
-    return wxDF_TEXT;
+    // we can only store one wxDataObject
+    Clear();

 
 

-  return wxRegisterClipboardFormat(str);
-}
+    PasteboardSyncFlags syncFlags = PasteboardSynchronize( M_CLIPBOARD->m_pasteboard );
+    wxCHECK_MSG( !(syncFlags&kPasteboardModified), false, wxT("clipboard modified after clear") );
+    wxCHECK_MSG( (syncFlags&kPasteboardClientIsOwner), false, wxT("client couldn't own clipboard") );

 
 

-void wxClipboard::SetClipboardClient(wxClipboardClient *client, long time)
-{
-  bool got_selection;
-
-  if (clipOwner)
-    clipOwner->BeingReplaced();
-  clipOwner = client;
-  if (cbString) {
-    delete[] cbString;
-    cbString = NULL;
-  }
-
-  if (wxOpenClipboard()) {
-    char **formats, *data;
-         int i;
-    int ftype;
-    long size;
-
-    formats = clipOwner->formats.ListToArray(FALSE);
-    for (i = clipOwner->formats.Number(); i--; ) {
-      ftype = FormatStringToID(formats[i]);
-      data = clipOwner->GetData(formats[i], &size);
-      if (!wxSetClipboardData(ftype, (wxObject *)data, size, 1)) {
-        got_selection = FALSE;
-        break;
-      }
-    }
+    M_CLIPBOARD->m_trueData = data;

 
 

-    if (i < 0)
-      got_selection = wxCloseClipboard();
-  } else
-    got_selection = FALSE;
-  
-  got_selection = FALSE; // Assume another process takes over
-
-  if (!got_selection) {
-    clipOwner->BeingReplaced();
-         clipOwner = NULL;
-  }
+    data->AddToPasteboard( M_CLIPBOARD->m_pasteboard, 1 );
+
+    return true;

 }
 
 }
 

-wxClipboardClient *wxClipboard::GetClipboardClient()
+void wxClipboard::Close()

 {
 {

-  return clipOwner;
+    wxCHECK_RET( m_open, wxT("clipboard not open") );
+
+    m_open = false;
+
+    // Get rid of cached object.
+    // If this is not done, copying data from
+    // another application will only work once
+    if (M_CLIPBOARD->m_trueData)
+    {
+        delete M_CLIPBOARD->m_trueData;
+        M_CLIPBOARD->m_trueData = (wxDataObject*) NULL;
+    }

 }
 
 }
 

-void wxClipboard::SetClipboardString(char *str, long time)
-{/*
-  bool got_selection;
-
-  if (clipOwner) {
-    clipOwner->BeingReplaced();
-    clipOwner = NULL;
-  }
-  if (cbString)
-    delete[] cbString;
-
-  cbString = str;
-
-  if (wxOpenClipboard()) {
-    if (!wxSetClipboardData(wxDF_TEXT, (wxObject *)str))
-      got_selection = FALSE;
-    else
-                got_selection = wxCloseClipboard();
-  } else
-    got_selection = FALSE;
-
-  got_selection = FALSE; // Assume another process takes over
-
-  if (!got_selection) {
-    delete[] cbString;
-    cbString = NULL;
-  }
-  */
+bool wxClipboard::IsSupported( const wxDataFormat &dataFormat )
+{
+    if ( M_CLIPBOARD->m_trueData )
+        return M_CLIPBOARD->m_trueData->IsSupported( dataFormat );
+    return wxDataObject::IsFormatInPasteboard( M_CLIPBOARD->m_pasteboard, dataFormat );

 }
 
 }
 

-char *wxClipboard::GetClipboardString(long time)
+bool wxClipboard::GetData( wxDataObject& data )

 {
 {

-  char *str;
-  long length;
+    if ( IsUsingPrimarySelection() )
+        return false;
+
+    wxCHECK_MSG( m_open, false, wxT("clipboard not open") );
+
+    size_t formatcount = data.GetFormatCount() + 1;
+    wxDataFormat *array = new wxDataFormat[ formatcount ];
+    array[0] = data.GetPreferredFormat();
+    data.GetAllFormats( &array[1] );
+
+    bool transferred = false;
+
+    if ( M_CLIPBOARD->m_trueData )
+    {
+        for (size_t i = 0; !transferred && i < formatcount; i++)
+        {
+            wxDataFormat format = array[ i ];
+            if ( M_CLIPBOARD->m_trueData->IsSupported( format ) )
+            {
+                int dataSize = M_CLIPBOARD->m_trueData->GetDataSize( format );
+                transferred = true;
+
+                if (dataSize == 0)
+                {
+                    data.SetData( format, 0, 0 );
+                }
+                else
+                {
+                    char *d = new char[ dataSize ];
+                    M_CLIPBOARD->m_trueData->GetDataHere( format, (void*)d );
+                    data.SetData( format, dataSize, d );
+                    delete [] d;
+                }
+            }
+        }
+    }

 
 

-  str = GetClipboardData("TEXT", &length, time);
-  if (!str) {
-    str = new char[1];
-    *str = 0;
-  }
+    // get formats from wxDataObjects
+    if ( !transferred )
+    {
+        transferred = data.GetFromPasteboard( M_CLIPBOARD->m_pasteboard ) ;
+    }

 
 

-  return str;
-}
+    delete [] array;

 
 

-char *wxClipboard::GetClipboardData(char *format, long *length, long time)
-{
-  if (clipOwner)  {
-         if (clipOwner->formats.Member(format))
-      return clipOwner->GetData(format, length);
-    else
-      return NULL;
-  } else if (cbString) {
-    if (!strcmp(format, "TEXT"))
-      return copystring(cbString);
-    else
-      return NULL;
-  } else {
-    if (wxOpenClipboard()) {
-      receivedString = (char *)wxGetClipboardData(FormatStringToID(format), 
-                                                  length);
-      wxCloseClipboard();
-    } else
-      receivedString = NULL;
-
-    return receivedString;
-  }
+    return transferred;

 }
 
 }
 

+#endif