preserve type when loaded image is rescaled, #11543

[wxWidgets.git] / src / motif / dataobj.cpp

diff --git a/src/motif/dataobj.cpp b/src/motif/dataobj.cpp
index 465bc56741fb601985a530487ea743a54a8ef3f2..c96ec26e1541eaf55772e7622a0496cf5fcf3a82 100644 (file)
--- a/src/motif/dataobj.cpp
+++ b/src/motif/dataobj.cpp
@@ -1,69 +1,183 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        dataobj.cpp
+// Name:        src/motif/dataobj.cpp

 // Purpose:     wxDataObject class
 // Author:      Julian Smart
 // Id:          $Id$
 // Copyright:   (c) 1998 Julian Smart
 // Purpose:     wxDataObject class
 // Author:      Julian Smart
 // Id:          $Id$
 // Copyright:   (c) 1998 Julian Smart

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

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

-#ifdef __GNUG__
-#pragma implementation "dataobj.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_CLIPBOARD

 
 #include "wx/dataobj.h"
 
 #include "wx/dataobj.h"

-#include "wx/app.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/utils.h"
+#endif
+
+#ifdef __VMS__
+#pragma message disable nosimpint
+#endif
+#include <Xm/Xm.h>
+#ifdef __VMS__
+#pragma message enable nosimpint
+#endif
+
+#include "wx/motif/private.h"

 
 //-------------------------------------------------------------------------
 
 //-------------------------------------------------------------------------

-// wxDataObject
+// global data

 //-------------------------------------------------------------------------
 
 //-------------------------------------------------------------------------
 

-IMPLEMENT_ABSTRACT_CLASS( wxDataObject, wxObject )
+Atom  g_textAtom        = 0;
+Atom  g_bitmapAtom      = 0;
+Atom  g_fileAtom        = 0;

 
 

-// ----------------------------------------------------------------------------
-// wxTextDataObject
-// ----------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+// wxDataFormat
+//-------------------------------------------------------------------------
+
+wxDataFormat::wxDataFormat()
+{
+    // do *not* call PrepareFormats() from here for 2 reasons:
+    //
+    // 1. we will have time to do it later because some other Set function
+    //    must be called before we really need them
+    //
+    // 2. doing so prevents us from declaring global wxDataFormats because
+    //    calling PrepareFormats (and thus gdk_atom_intern) before GDK is
+    //    initialised will result in a crash
+    m_type = wxDF_INVALID;
+    m_format = (Atom) 0;
+}
+
+wxDataFormat::wxDataFormat( wxDataFormatId type )
+{
+    PrepareFormats();
+    SetType( type );
+}
+
+wxDataFormat::wxDataFormat( const wxString &id )
+{
+    PrepareFormats();
+    SetId( id );
+}
+
+wxDataFormat::wxDataFormat( NativeFormat format )
+{
+    PrepareFormats();
+    SetId( format );
+}
+
+void wxDataFormat::SetType( wxDataFormatId type )
+{
+    PrepareFormats();
+    m_type = type;
+
+    if (m_type == wxDF_TEXT)
+        m_format = g_textAtom;
+    else
+    if (m_type == wxDF_BITMAP)
+        m_format = g_bitmapAtom;
+    else
+    if (m_type == wxDF_FILENAME)
+        m_format = g_fileAtom;
+    else
+    {
+       wxFAIL_MSG( wxT("invalid dataformat") );
+    }
+}
+
+wxDataFormatId wxDataFormat::GetType() const
+{
+    return m_type;
+}
+
+wxString wxDataFormat::GetId() const
+{
+    char *t = XGetAtomName ((Display*) wxGetDisplay(), m_format);
+    wxString ret( t );  // this will convert from ascii to Unicode
+    if (t)
+        XFree( t );
+    return ret;
+}
+
+void wxDataFormat::SetId( NativeFormat format )
+{
+    PrepareFormats();
+    m_format = format;
+
+    if (m_format == g_textAtom)
+        m_type = wxDF_TEXT;
+    else
+    if (m_format == g_bitmapAtom)
+        m_type = wxDF_BITMAP;
+    else
+    if (m_format == g_fileAtom)
+        m_type = wxDF_FILENAME;
+    else
+        m_type = wxDF_PRIVATE;
+}
+
+void wxDataFormat::SetId( const wxString& id )
+{
+    PrepareFormats();
+    m_type = wxDF_PRIVATE;
+    m_format = XInternAtom( wxGlobalDisplay(),
+                            id.mbc_str(), False );
+}

 
 

-IMPLEMENT_DYNAMIC_CLASS( wxTextDataObject, wxDataObject )
+void wxDataFormat::PrepareFormats()
+{
+    if (!g_textAtom)
+        g_textAtom = XInternAtom( wxGlobalDisplay(), "STRING", False );
+    if (!g_bitmapAtom)
+        g_bitmapAtom = XInternAtom( wxGlobalDisplay(), "PIXMAP", False );
+    if (!g_fileAtom)
+        g_fileAtom = XInternAtom( wxGlobalDisplay(), "file:ALL", False );
+}

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// wxFileDataObject
+// wxDataObject

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS( wxFileDataObject, wxDataObject )
+wxDataObject::~wxDataObject()
+{
+}

 
 // ----------------------------------------------------------------------------
 // wxBitmapDataObject
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // wxBitmapDataObject
 // ----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS( wxBitmapDataObject, wxDataObject )
+size_t wxBitmapDataObject::GetDataSize() const
+{
+    return sizeof(Pixmap);
+}

 
 

-// ----------------------------------------------------------------------------
-// wxPrivateDataObject
-// ----------------------------------------------------------------------------
+bool wxBitmapDataObject::GetDataHere(void* buf) const
+{
+    if( !GetBitmap().Ok() )
+        return false;

 
 

-IMPLEMENT_DYNAMIC_CLASS( wxPrivateDataObject, wxDataObject )
+    (*(Pixmap*)buf) = (Pixmap)GetBitmap().GetDrawable();

 
 

-wxPrivateDataObject::wxPrivateDataObject() 
-{ 
-    m_size = 0; 
-    m_data = (char*) NULL; 
-    m_id = wxTheApp->GetAppName();
-}
-    
-wxPrivateDataObject::~wxPrivateDataObject()
-{ 
-    if (m_data) delete[] m_data; 
+    return true;

 }
 }

-  
-void wxPrivateDataObject::SetData( const char *data, size_t size )
+
+bool wxBitmapDataObject::SetData(size_t len, const void* buf)

 {
 {

-    m_size = size;
-    
-    if (m_data) delete[] m_data;
-    
-    m_data = new char[size];
+    if( len != sizeof(Pixmap) )
+        return false;
+
+    WXPixmap pixmap = (WXPixmap)*(Pixmap*)buf;
+
+    m_bitmap.Create( pixmap );

 
 

-    memcpy( m_data, data, size );  
+    return true;

 }
 
 }
 

+#endif // wxUSE_CLIPBOARD