// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
// data
//-----------------------------------------------------------------------------
-wxClipboard *wxTheClipboard = (wxClipboard*) NULL;
-
GdkAtom g_clipboardAtom = 0;
GdkAtom g_targetsAtom = 0;
GdkAtom selection;
GdkAtom target;
GdkAtom type;
- gint format;
+ gint format;
guchar *data;
- gint length;
+ gint length;
};
*/
#if (GTK_MINOR_VERSION > 0)
guint32 WXUNUSED(time),
#endif
- wxClipboard *clipboard )
+ wxClipboard *clipboard )
{
if (!wxTheClipboard)
{
clipboard->m_waiting = FALSE;
return;
}
+
+/*
+ wxDataFormat clip( selection_data->selection );
+ wxLogDebug( wxT("selection received for targets, clipboard %s"), clip.GetId().c_str() );
+*/
// the atoms we received, holding a list of targets (= formats)
GdkAtom *atoms = (GdkAtom *)selection_data->data;
for (unsigned int i=0; i<selection_data->length/sizeof(GdkAtom); i++)
{
+ wxDataFormat format( atoms[i] );
+
/*
- char *name = gdk_atom_name (atoms[i]);
- if (name) printf( "Format available: %s.\n", name ); */
-
- if (atoms[i] == clipboard->m_targetRequested)
+ wxLogDebug( wxT("selection received for targets, format %s"), format.GetId().c_str() );
+*/
+
+ if (format == clipboard->m_targetRequested)
{
clipboard->m_waiting = FALSE;
clipboard->m_formatSupported = TRUE;
#if (GTK_MINOR_VERSION > 0)
guint32 WXUNUSED(time),
#endif
- wxClipboard *clipboard )
+ wxClipboard *clipboard )
{
if (!wxTheClipboard)
{
/* make sure we got the data in the correct form (selection type).
if so, copy data to target object */
-
- switch (format.GetType())
+ if (selection_data->type != GDK_SELECTION_TYPE_STRING)
{
- case wxDF_TEXT:
- {
- if (selection_data->type != GDK_SELECTION_TYPE_STRING)
- {
- clipboard->m_waiting = FALSE;
- return;
- }
-
- wxTextDataObject *text_object = (wxTextDataObject *) data_object;
-
- wxString text = (const char*) selection_data->data;
-
- text_object->SetText( text );
-
- break;
- }
-
- case wxDF_BITMAP:
- {
- if (selection_data->type != GDK_SELECTION_TYPE_STRING)
- {
- clipboard->m_waiting = FALSE;
- return;
- }
-
- wxBitmapDataObject *bitmap_object = (wxBitmapDataObject *) data_object;
-
- bitmap_object->SetData( (size_t) selection_data->length, (const void*) selection_data->data );
-
- break;
- }
-
- case wxDF_PRIVATE:
- {
- if (selection_data->type != GDK_SELECTION_TYPE_STRING)
- {
- clipboard->m_waiting = FALSE;
- return;
- }
-
- data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data );
-
- break;
- }
-
- default:
- {
- clipboard->m_waiting = FALSE;
- return;
- }
+ clipboard->m_waiting = FALSE;
+ return;
}
+
+ data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data );
wxTheClipboard->m_formatSupported = TRUE;
clipboard->m_waiting = FALSE;
{
/* the clipboard is no longer in our hands. we can the delete clipboard data. */
if (wxTheClipboard->m_data)
- {
- delete wxTheClipboard->m_data;
- wxTheClipboard->m_data = (wxDataObject*) NULL;
- }
+ {
+ wxLogDebug( wxT("wxClipboard will get cleared" ) );
+
+ delete wxTheClipboard->m_data;
+ wxTheClipboard->m_data = (wxDataObject*) NULL;
+ }
}
wxTheClipboard->m_waiting = FALSE;
if (!data->IsSupportedFormat( format )) return;
+ /* this will fail for composite formats */
if (format.GetType() == wxDF_TEXT)
{
- wxTextDataObject *text_object = (wxTextDataObject*) data;
- wxString text( text_object->GetText() );
+ wxTextDataObject *text_object = (wxTextDataObject*) data;
+ wxString text( text_object->GetText() );
#if wxUSE_UNICODE
- const wxWX2MBbuf s = text.mbc_str();
- int len = strlen(s);
+ const wxWX2MBbuf s = text.mbc_str();
+ int len = strlen(s);
#else // more efficient in non-Unicode
- const char *s = text.c_str();
- int len = (int) text.Length();
+ const char *s = text.c_str();
+ int len = (int) text.Length();
#endif
gtk_selection_data_set(
selection_data,
- GDK_SELECTION_TYPE_STRING,
- 8*sizeof(gchar),
- (unsigned char*) (const char*) s,
+ GDK_SELECTION_TYPE_STRING,
+ 8*sizeof(gchar),
+ (unsigned char*) (const char*) s,
len );
-
- return;
- }
-
- if (format.GetType() == wxDF_BITMAP)
- {
- wxBitmapDataObject *bitmap_object = (wxBitmapDataObject*) data;
-
- if (bitmap_object->GetDataSize() == 0) return;
-
- gtk_selection_data_set(
- selection_data,
- GDK_SELECTION_TYPE_STRING,
- 8*sizeof(gchar),
- (unsigned char*) bitmap_object->GetPngData(),
- (int) bitmap_object->GetDataSize() );
-
- return;
+
+ return;
}
int size = data->GetDataSize( format );
gtk_selection_data_set(
selection_data,
- GDK_SELECTION_TYPE_STRING,
- 8*sizeof(gchar),
- (unsigned char*) d,
- size );
+ GDK_SELECTION_TYPE_STRING,
+ 8*sizeof(gchar),
+ (unsigned char*) d,
+ size );
}
//-----------------------------------------------------------------------------
gtk_signal_connect( GTK_OBJECT(m_targetsWidget),
"selection_received",
- GTK_SIGNAL_FUNC( targets_selection_received ),
- (gpointer) this );
-
+ GTK_SIGNAL_FUNC( targets_selection_received ),
+ (gpointer) this );
+
/* we use m_clipboardWidget to get and to offer data */
m_clipboardWidget = gtk_window_new( GTK_WINDOW_POPUP );
gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),
"selection_received",
- GTK_SIGNAL_FUNC( selection_received ),
- (gpointer) this );
+ GTK_SIGNAL_FUNC( selection_received ),
+ (gpointer) this );
gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),
"selection_clear_event",
- GTK_SIGNAL_FUNC( selection_clear_clip ),
- (gpointer) NULL );
-
+ GTK_SIGNAL_FUNC( selection_clear_clip ),
+ (gpointer) NULL );
+
if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE );
if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE);
if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window)
{
m_waiting = TRUE;
-
+
gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, GDK_CURRENT_TIME );
-
+
while (m_waiting) gtk_main_iteration();
}
if (gdk_selection_owner_get( GDK_SELECTION_PRIMARY ) == m_clipboardWidget->window)
{
m_waiting = TRUE;
-
+
gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME );
-
+
while (m_waiting) gtk_main_iteration();
}
if (m_data)
{
- delete m_data;
- m_data = (wxDataObject*) NULL;
- }
-
+ delete m_data;
+ m_data = (wxDataObject*) NULL;
+ }
+
#if wxUSE_THREADS
/* re-enable GUI threads */
wxapp_install_thread_wakeup();
m_data = data;
- /* This should happen automatically, but to be on the safe side */
- m_ownsClipboard = FALSE;
- m_ownsPrimarySelection = FALSE;
-
/* get formats from wxDataObjects */
wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
m_data->GetAllFormats( array );
+
+ /* primary selection or clipboard */
+ GdkAtom clipboard = m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
+ : g_clipboardAtom;
+
for (size_t i = 0; i < m_data->GetFormatCount(); i++)
{
- GdkAtom atom = array[i];
- wxLogDebug( wxT("Clipboard Supported atom %s"), gdk_atom_name( atom ) );
-
- /* Add handlers if someone requests data. We currently always
- offer data to the clipboard and the primary selection. Maybe
- we should make that depend on the usePrimary flag */
-
- gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
- GDK_SELECTION_PRIMARY,
- atom,
- 0 ); /* what is info ? */
-
- gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
- g_clipboardAtom,
- atom,
- 0 ); /* what is info ? */
+ wxLogDebug( wxT("wxClipboard now supports atom %s"), array[i].GetId().c_str() );
+
+ gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
+ clipboard,
+ array[i],
+ 0 ); /* what is info ? */
}
delete[] array;
-
+
gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),
"selection_get",
- GTK_SIGNAL_FUNC(selection_handler),
- (gpointer) NULL );
+ GTK_SIGNAL_FUNC(selection_handler),
+ (gpointer) NULL );
#if wxUSE_THREADS
- /* disable GUI threads */
- wxapp_uninstall_thread_wakeup();
+ /* disable GUI threads */
+ wxapp_uninstall_thread_wakeup();
#endif
/* Tell the world we offer clipboard data */
- if (!gtk_selection_owner_set( m_clipboardWidget,
- g_clipboardAtom,
- GDK_CURRENT_TIME ))
- {
-#if wxUSE_THREADS
- /* re-enable GUI threads */
- wxapp_install_thread_wakeup();
-#endif
- return FALSE;
- }
- m_ownsClipboard = TRUE;
+ bool res = (gtk_selection_owner_set( m_clipboardWidget,
+ clipboard,
+ GDK_CURRENT_TIME ));
- if (!gtk_selection_owner_set( m_clipboardWidget,
- GDK_SELECTION_PRIMARY,
- GDK_CURRENT_TIME ))
- {
-#if wxUSE_THREADS
- /* re-enable GUI threads */
- wxapp_install_thread_wakeup();
-#endif
- return FALSE;
- }
- m_ownsPrimarySelection = TRUE;
+ if (m_usePrimary)
+ m_ownsPrimarySelection = res;
+ else
+ m_ownsClipboard = res;
#if wxUSE_THREADS
/* re-enable GUI threads */
wxapp_install_thread_wakeup();
#endif
-
- return TRUE;
+
+ return res;
}
void wxClipboard::Close()
m_open = FALSE;
}
+bool wxClipboard::IsOpened() const
+{
+ return m_open;
+}
+
bool wxClipboard::IsSupported( const wxDataFormat& format )
{
- /* store requested format to be asked for by callbacks */
+ /* reentrance problems */
+ if (m_open) return TRUE;
+ /* store requested format to be asked for by callbacks */
m_targetRequested = format;
wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
m_waiting = TRUE;
gtk_selection_convert( m_targetsWidget,
- m_usePrimary ? GDK_SELECTION_PRIMARY : g_clipboardAtom,
- g_targetsAtom,
- GDK_CURRENT_TIME );
+ m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
+ : g_clipboardAtom,
+ g_targetsAtom,
+ GDK_CURRENT_TIME );
while (m_waiting) gtk_main_iteration();
for (size_t i = 0; i < data.GetFormatCount(); i++)
{
+ wxDataFormat format( array[i] );
+
+ wxLogDebug( wxT("wxClipboard::GetData: requested format: %s"), format.GetId().c_str() );
+
/* is data supported by clipboard ? */
- if (!IsSupported( array[i] ))
- continue;
+
+ /* store requested format to be asked for by callbacks */
+ m_targetRequested = format;
+
+ wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
+
+ m_formatSupported = FALSE;
+
+ /* perform query. this will set m_formatSupported to
+ TRUE if m_targetRequested is supported.
+ also, we have to wait for the "answer" from the
+ clipboard owner which is an asynchronous process.
+ therefore we set m_waiting = TRUE here and wait
+ until the callback "targets_selection_received"
+ sets it to FALSE */
+
+ m_waiting = TRUE;
+
+ gtk_selection_convert( m_targetsWidget,
+ m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
+ : g_clipboardAtom,
+ g_targetsAtom,
+ GDK_CURRENT_TIME );
+
+ while (m_waiting) gtk_main_iteration();
+
+ if (!m_formatSupported) continue;
/* store pointer to data object to be filled up by callbacks */
m_receivedData = &data;
/* store requested format to be asked for by callbacks */
- m_targetRequested = array[i];
+ m_targetRequested = format;
wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
m_waiting = TRUE;
+ wxLogDebug( wxT("wxClipboard::GetData: format found, start convert") );
+
gtk_selection_convert( m_clipboardWidget,
- m_usePrimary ? GDK_SELECTION_PRIMARY : g_clipboardAtom,
- m_targetRequested,
- GDK_CURRENT_TIME );
+ m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
+ : g_clipboardAtom,
+ m_targetRequested,
+ GDK_CURRENT_TIME );
while (m_waiting) gtk_main_iteration();
/* this is a true error as we checked for the presence of such data before */
wxCHECK_MSG( m_formatSupported, FALSE, wxT("error retrieving data from clipboard") );
-
- /* return success */
+
+ /* return success */
delete[] array;
return TRUE;
}
+ wxLogDebug( wxT("wxClipboard::GetData: format not found") );
+
/* return failure */
delete[] array;
return FALSE;
projects / wxWidgets.git / blobdiff