X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b068c4e8a1f4919360329c345eae36ff95ab5a10..106f039552385de4d8b7c2e530a00057e9b78208:/src/gtk/clipbrd.cpp diff --git a/src/gtk/clipbrd.cpp b/src/gtk/clipbrd.cpp index 1304b0ddf1..229cfd3e13 100644 --- a/src/gtk/clipbrd.cpp +++ b/src/gtk/clipbrd.cpp @@ -4,7 +4,7 @@ // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ @@ -36,8 +36,6 @@ extern void wxapp_uninstall_thread_wakeup(); // data //----------------------------------------------------------------------------- -wxClipboard *wxTheClipboard = (wxClipboard*) NULL; - GdkAtom g_clipboardAtom = 0; GdkAtom g_targetsAtom = 0; @@ -59,9 +57,9 @@ struct _GtkSelectionData GdkAtom selection; GdkAtom target; GdkAtom type; - gint format; + gint format; guchar *data; - gint length; + gint length; }; */ @@ -76,7 +74,7 @@ targets_selection_received( GtkWidget *WXUNUSED(widget), #if (GTK_MINOR_VERSION > 0) guint32 WXUNUSED(time), #endif - wxClipboard *clipboard ) + wxClipboard *clipboard ) { if (!wxTheClipboard) { @@ -96,17 +94,24 @@ targets_selection_received( GtkWidget *WXUNUSED(widget), 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; ilength/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; @@ -128,7 +133,7 @@ selection_received( GtkWidget *WXUNUSED(widget), #if (GTK_MINOR_VERSION > 0) guint32 WXUNUSED(time), #endif - wxClipboard *clipboard ) + wxClipboard *clipboard ) { if (!wxTheClipboard) { @@ -161,60 +166,13 @@ selection_received( GtkWidget *WXUNUSED(widget), /* 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; @@ -249,10 +207,12 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) { /* 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; @@ -276,42 +236,27 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data 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 ); @@ -324,10 +269,10 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data 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 ); } //----------------------------------------------------------------------------- @@ -353,9 +298,9 @@ wxClipboard::wxClipboard() 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 ); @@ -363,14 +308,14 @@ wxClipboard::wxClipboard() 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); @@ -402,27 +347,29 @@ void wxClipboard::Clear() if (gdk_selection_owner_get( g_clipboardAtom ) == m_clipboardWidget->window) { m_waiting = TRUE; - - gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, GDK_CURRENT_TIME ); - + + gtk_selection_owner_set( (GtkWidget*) NULL, g_clipboardAtom, + (guint32) 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 ); - + + gtk_selection_owner_set( (GtkWidget*) NULL, GDK_SELECTION_PRIMARY, + (guint32) 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(); @@ -464,77 +411,53 @@ bool wxClipboard::AddData( wxDataObject *data ) 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, + (guint32) 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() @@ -544,10 +467,17 @@ 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") ); @@ -565,9 +495,10 @@ bool wxClipboard::IsSupported( const wxDataFormat& 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, + (guint32) GDK_CURRENT_TIME ); while (m_waiting) gtk_main_iteration(); @@ -586,15 +517,44 @@ bool wxClipboard::GetData( wxDataObject& data ) 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, + (guint32) 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") ); @@ -612,21 +572,26 @@ bool wxClipboard::GetData( wxDataObject& data ) 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, + (guint32) 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;