X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d345e841da6719c3de9de784220aafafb5eb1e93..866592d872daa1f4e3d44948d7d3a6c90b0af9d0:/src/gtk/clipbrd.cpp diff --git a/src/gtk/clipbrd.cpp b/src/gtk/clipbrd.cpp index 1e061e3201..d3cd53bc4e 100644 --- a/src/gtk/clipbrd.cpp +++ b/src/gtk/clipbrd.cpp @@ -15,17 +15,27 @@ #if wxUSE_CLIPBOARD +#include "wx/utils.h" + #include "glib.h" #include "gdk/gdk.h" #include "gtk/gtk.h" +//----------------------------------------------------------------------------- +// thread system +//----------------------------------------------------------------------------- + +#if wxUSE_THREADS +extern void wxapp_install_thread_wakeup(); +extern void wxapp_uninstall_thread_wakeup(); +#endif + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- wxClipboard *wxTheClipboard = (wxClipboard*) NULL; -GdkAtom g_textAtom = 0; GdkAtom g_clipboardAtom = 0; GdkAtom g_targetsAtom = 0; @@ -61,30 +71,47 @@ struct _GtkSelectionData static void targets_selection_received( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data, +#if (GTK_MINOR_VERSION > 0) + guint32 WXUNUSED(time), +#endif wxClipboard *clipboard ) { - if (!wxTheClipboard) return; - - if (selection_data->length <= 0) return; + if (!wxTheClipboard) + { + clipboard->m_waiting = FALSE; + return; + } - // make sure we got the data in the correct form - if (selection_data->type != GDK_SELECTION_TYPE_ATOM) return; + if (selection_data->length <= 0) + { + clipboard->m_waiting = FALSE; + return; + } + + /* make sure we got the data in the correct form */ + if (selection_data->type != GDK_SELECTION_TYPE_ATOM) + { + clipboard->m_waiting = FALSE; + return; + } // 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++) { - char *name = gdk_atom_name (atoms[i]); - if (name) printf( "Format available: %s.\n", name ); +/* char *name = gdk_atom_name (atoms[i]); + if (name) printf( "Format available: %s.\n", name ); */ if (atoms[i] == clipboard->m_targetRequested) { + clipboard->m_waiting = FALSE; clipboard->m_formatSupported = TRUE; return; } } + clipboard->m_waiting = FALSE; return; } @@ -95,28 +122,50 @@ targets_selection_received( GtkWidget *WXUNUSED(widget), static void selection_received( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data, +#if (GTK_MINOR_VERSION > 0) + guint32 WXUNUSED(time), +#endif wxClipboard *clipboard ) { - if (!wxTheClipboard) return; + if (!wxTheClipboard) + { + clipboard->m_waiting = FALSE; + return; + } wxDataObject *data_object = clipboard->m_receivedData; - if (!data_object) return; + if (!data_object) + { + clipboard->m_waiting = FALSE; + return; + } - if (selection_data->length <= 0) return; + if (selection_data->length <= 0) + { + clipboard->m_waiting = FALSE; + return; + } - // make sure we got the data in the correct format - - if (data_object->GetFormat().GetAtom() != selection_data->target) return; - - // make sure we got the data in the correct form (selection type). - // if so, copy data to target object + /* make sure we got the data in the correct format */ + if (data_object->GetFormat().GetAtom() != selection_data->target) + { + clipboard->m_waiting = FALSE; + return; + } + + /* make sure we got the data in the correct form (selection type). + if so, copy data to target object */ switch (data_object->GetFormat().GetType()) { case wxDF_TEXT: { - if (selection_data->type != GDK_SELECTION_TYPE_STRING) return; + if (selection_data->type != GDK_SELECTION_TYPE_STRING) + { + clipboard->m_waiting = FALSE; + return; + } wxTextDataObject *text_object = (wxTextDataObject *) data_object; @@ -129,16 +178,26 @@ selection_received( GtkWidget *WXUNUSED(widget), case wxDF_BITMAP: { - if (selection_data->type != GDK_SELECTION_TYPE_BITMAP) return; + if (selection_data->type != GDK_SELECTION_TYPE_STRING) + { + clipboard->m_waiting = FALSE; + return; + } - return; + wxBitmapDataObject *bitmap_object = (wxBitmapDataObject *) data_object; + + bitmap_object->SetPngData( (const char*) selection_data->data, (size_t) selection_data->length ); break; } case wxDF_PRIVATE: { - if (selection_data->type != GDK_SELECTION_TYPE_STRING) return; + if (selection_data->type != GDK_SELECTION_TYPE_STRING) + { + clipboard->m_waiting = FALSE; + return; + } wxPrivateDataObject *private_object = (wxPrivateDataObject *) data_object; @@ -149,11 +208,13 @@ selection_received( GtkWidget *WXUNUSED(widget), default: { + clipboard->m_waiting = FALSE; return; } } wxTheClipboard->m_formatSupported = TRUE; + clipboard->m_waiting = FALSE; } //----------------------------------------------------------------------------- @@ -176,14 +237,14 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) } else { + wxTheClipboard->m_waiting = FALSE; return FALSE; } if ((!wxTheClipboard->m_ownsPrimarySelection) && (!wxTheClipboard->m_ownsClipboard)) { - /* the clipboard is no longer in our hands. we can the clipboard data. */ - + /* the clipboard is no longer in our hands. we can the delete clipboard data. */ if (wxTheClipboard->m_dataBroker) { delete wxTheClipboard->m_dataBroker; @@ -191,6 +252,7 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event ) } } + wxTheClipboard->m_waiting = FALSE; return TRUE; } @@ -210,11 +272,11 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data while (node) { wxDataObject *data_object = (wxDataObject *)node->Data(); - + if (data_object->GetFormat().GetAtom() != selection_data->target) { node = node->Next(); - break; + continue; } switch (data_object->GetFormat().GetType()) @@ -225,14 +287,19 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data wxString text = text_object->GetText(); - char *s = WXSTRINGCAST text; +#if wxUSE_UNICODE + 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(); +#endif gtk_selection_data_set( selection_data, GDK_SELECTION_TYPE_STRING, 8*sizeof(gchar), - (unsigned char*) s, + (unsigned char*) (const char*) s, len ); break; @@ -240,10 +307,17 @@ selection_handler( GtkWidget *WXUNUSED(widget), GtkSelectionData *selection_data case wxDF_BITMAP: { - // wxBitmapDataObject *private_object = (wxBitmapDataObject*) data_object; + wxBitmapDataObject *bitmap_object = (wxBitmapDataObject*) data_object; - // how do we do that ? - + if (bitmap_object->GetSize() == 0) return; + + gtk_selection_data_set( + selection_data, + GDK_SELECTION_TYPE_STRING, + 8*sizeof(gchar), + (unsigned char*) bitmap_object->GetData(), + (int) bitmap_object->GetSize() ); + break; } @@ -286,20 +360,38 @@ wxClipboard::wxClipboard() m_receivedData = (wxDataObject*) NULL; + /* we use m_targetsWidget to query what formats are available */ + + m_targetsWidget = gtk_window_new( GTK_WINDOW_POPUP ); + gtk_widget_realize( m_targetsWidget ); + + gtk_signal_connect( GTK_OBJECT(m_targetsWidget), + "selection_received", + 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_widget_realize( m_clipboardWidget ); + gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), + "selection_received", + 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 ); if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE ); - if (!g_textAtom) g_textAtom = gdk_atom_intern( "TEXT", FALSE ); if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE); m_formatSupported = FALSE; m_targetRequested = 0; + + m_usePrimary = FALSE; } wxClipboard::~wxClipboard() @@ -307,23 +399,36 @@ wxClipboard::~wxClipboard() Clear(); if (m_clipboardWidget) gtk_widget_destroy( m_clipboardWidget ); + if (m_targetsWidget) gtk_widget_destroy( m_targetsWidget ); } void wxClipboard::Clear() { if (m_dataBroker) { +#if wxUSE_THREADS + /* disable GUI threads */ + wxapp_uninstall_thread_wakeup(); +#endif + /* As we have data we also own the clipboard. Once we no longer own it, clear_selection is called which will set m_data to zero */ - 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_dataBroker) @@ -331,6 +436,11 @@ void wxClipboard::Clear() delete m_dataBroker; m_dataBroker = (wxDataBroker*) NULL; } + +#if wxUSE_THREADS + /* re-enable GUI threads */ + wxapp_install_thread_wakeup(); +#endif } m_targetRequested = 0; @@ -340,18 +450,18 @@ void wxClipboard::Clear() bool wxClipboard::Open() { - wxCHECK_MSG( !m_open, FALSE, "clipboard already open" ); + wxCHECK_MSG( !m_open, FALSE, _T("clipboard already open") ); m_open = TRUE; - + return TRUE; } bool wxClipboard::SetData( wxDataObject *data ) { - wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); + wxCHECK_MSG( m_open, FALSE, _T("clipboard not open") ); - wxCHECK_MSG( data, FALSE, "data is invalid" ); + wxCHECK_MSG( data, FALSE, _T("data is invalid") ); Clear(); @@ -360,31 +470,26 @@ bool wxClipboard::SetData( wxDataObject *data ) bool wxClipboard::AddData( wxDataObject *data ) { - wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); + wxCHECK_MSG( m_open, FALSE, _T("clipboard not open") ); - wxCHECK_MSG( data, FALSE, "data is invalid" ); + wxCHECK_MSG( data, FALSE, _T("data is invalid") ); /* if clipboard has been cleared before, create new data broker */ - if (!m_dataBroker) m_dataBroker = new wxDataBroker(); /* add new data to list of offered data objects */ - m_dataBroker->Add( data ); /* get native format id of new data object */ - GdkAtom format = data->GetFormat().GetAtom(); - wxCHECK_MSG( format, FALSE, "data has invalid format" ); + wxCHECK_MSG( format, FALSE, _T("data has invalid format") ); /* This should happen automatically, but to be on the safe side */ - m_ownsClipboard = FALSE; m_ownsPrimarySelection = FALSE; /* Add handlers if someone requests data */ - #if (GTK_MINOR_VERSION > 0) @@ -417,13 +522,21 @@ bool wxClipboard::AddData( wxDataObject *data ) selection_handler, (gpointer) NULL ); #endif - + +#if wxUSE_THREADS + /* 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; @@ -432,51 +545,58 @@ bool wxClipboard::AddData( wxDataObject *data ) GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME )) { +#if wxUSE_THREADS + /* re-enable GUI threads */ + wxapp_install_thread_wakeup(); +#endif return FALSE; } m_ownsPrimarySelection = TRUE; + +#if wxUSE_THREADS + /* re-enable GUI threads */ + wxapp_install_thread_wakeup(); +#endif return TRUE; } void wxClipboard::Close() { - wxCHECK_RET( m_open, "clipboard not open" ); + wxCHECK_RET( m_open, _T("clipboard not open") ); m_open = FALSE; } bool wxClipboard::IsSupported( wxDataFormat format ) { - wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); + wxCHECK_MSG( m_open, FALSE, _T("clipboard not open") ); /* store requested format to be asked for by callbacks */ m_targetRequested = format.GetAtom(); - wxCHECK_MSG( m_targetRequested, FALSE, "invalid clipboard format" ); + wxCHECK_MSG( m_targetRequested, FALSE, _T("invalid clipboard format") ); - /* add handler for target (= format) query */ - - gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), - "selection_received", - GTK_SIGNAL_FUNC( targets_selection_received ), - (gpointer) this ); - m_formatSupported = FALSE; /* perform query. this will set m_formatSupported to - * TRUE if m_targetRequested is supported */ - - gtk_selection_convert( m_clipboardWidget, - g_clipboardAtom, + TRUE if m_targetRequested is supported. + alsom 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?GDK_SELECTION_PRIMARY:g_clipboardAtom, g_targetsAtom, GDK_CURRENT_TIME ); - gtk_signal_disconnect_by_func( GTK_OBJECT(m_clipboardWidget), - GTK_SIGNAL_FUNC( targets_selection_received ), - (gpointer) this ); - + while (m_waiting) gtk_main_iteration(); + if (!m_formatSupported) return FALSE; return TRUE; @@ -484,7 +604,7 @@ bool wxClipboard::IsSupported( wxDataFormat format ) bool wxClipboard::GetData( wxDataObject *data ) { - wxCHECK_MSG( m_open, FALSE, "clipboard not open" ); + wxCHECK_MSG( m_open, FALSE, _T("clipboard not open") ); /* is data supported by clipboard ? */ @@ -498,31 +618,33 @@ bool wxClipboard::GetData( wxDataObject *data ) m_targetRequested = data->GetFormat().GetAtom(); - wxCHECK_MSG( m_targetRequested, FALSE, "invalid clipboard format" ); + wxCHECK_MSG( m_targetRequested, FALSE, _T("invalid clipboard format") ); /* start query */ m_formatSupported = FALSE; - gtk_signal_connect( GTK_OBJECT(m_clipboardWidget), - "selection_received", - GTK_SIGNAL_FUNC( selection_received ), - (gpointer) this ); + /* ask for clipboard contents. 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 */ - /* ask for clipboard contents */ + m_waiting = TRUE; gtk_selection_convert( m_clipboardWidget, - g_clipboardAtom, + m_usePrimary?GDK_SELECTION_PRIMARY:g_clipboardAtom, m_targetRequested, GDK_CURRENT_TIME ); - gtk_signal_disconnect_by_func( GTK_OBJECT(m_clipboardWidget), - GTK_SIGNAL_FUNC( selection_received ), - (gpointer) this ); + 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, "error retrieving data from clipboard" ); + wxCHECK_MSG( m_formatSupported, FALSE, _T("error retrieving data from clipboard") ); return TRUE; }