X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e3e65dac0c4e7ad19e3c270caa1e0eea138e5d8d..c626a8b797d2819e1e14110d77c04a530fd3b6b4:/src/gtk/dnd.cpp?ds=inline diff --git a/src/gtk/dnd.cpp b/src/gtk/dnd.cpp index 896763a93c..5ea4529238 100644 --- a/src/gtk/dnd.cpp +++ b/src/gtk/dnd.cpp @@ -2,8 +2,9 @@ // Name: dnd.cpp // Purpose: wxDropTarget class // Author: Robert Roebling -// Copyright: Robert Roebling -// Licence: wxWindows license +// Id: $Id$ +// Copyright: (c) 1998 Robert Roebling +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ @@ -11,10 +12,17 @@ #endif #include "wx/dnd.h" + +#if wxUSE_DRAG_AND_DROP + #include "wx/window.h" #include "wx/app.h" #include "wx/gdicmn.h" +#include "wx/intl.h" +#include "wx/utils.h" +#include "gdk/gdk.h" +#include "gtk/gtk.h" #include "gdk/gdkprivate.h" #include @@ -25,78 +33,189 @@ extern bool g_blockEventsOnDrag; +#ifdef NEW_GTK_DND_CODE + +#include "gtk/gtkdnd.h" +#include "gtk/gtkselection.h" + // ---------------------------------------------------------------------------- -// wxDropTarget +// "drag_leave" // ---------------------------------------------------------------------------- -wxDropTarget::wxDropTarget() +static void target_drag_leave( GtkWidget *WXUNUSED(widget), + GdkDragContext *WXUNUSED(context), + guint WXUNUSED(time) ) { -}; + printf( "leave.\n" ); +} -wxDropTarget::~wxDropTarget() +// ---------------------------------------------------------------------------- +// "drag_motion" +// ---------------------------------------------------------------------------- + +static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), + GdkDragContext *context, + gint WXUNUSED(x), + gint WXUNUSED(y), + guint time ) { -}; + printf( "motion.\n" ); + gdk_drag_status( context, context->suggested_action, time ); + return TRUE; +} + +// ---------------------------------------------------------------------------- +// "drag_drop" +// ---------------------------------------------------------------------------- + +static gboolean target_drag_drop( GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + guint time ) +{ + printf( "drop at: %d,%d.\n", x, y ); + + if (context->targets) + { + gtk_drag_get_data( widget, + context, + GPOINTER_TO_INT (context->targets->data), + time ); + } + return FALSE; +} + +// ---------------------------------------------------------------------------- +// "drag_data_received" +// ---------------------------------------------------------------------------- -void wxDropTarget::Drop( GdkEvent *event, int x, int y ) +static void target_drag_data_received( GtkWidget *WXUNUSED(widget), + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *data, + guint WXUNUSED(info), + guint time ) { - printf( "Drop data is of type %s.\n", event->dropdataavailable.data_type ); + printf( "data receive at: %d,%d.\n", x, y ); + + if ((data->length >= 0) && (data->format == 8)) + { + wxString str = (const char*)data->data; + printf( "Received %s\n.", WXSTRINGCAST str ); + gtk_drag_finish( context, TRUE, FALSE, time ); + return; + } - OnDrop( x, y, (char *)event->dropdataavailable.data); -}; + gtk_drag_finish (context, FALSE, FALSE, time); +} + +// ---------------------------------------------------------------------------- +// wxDropTarget +// ---------------------------------------------------------------------------- + +wxDropTarget::wxDropTarget() +{ +} + +wxDropTarget::~wxDropTarget() +{ +} void wxDropTarget::UnregisterWidget( GtkWidget *widget ) { - if (!widget) return; + wxCHECK_RET( widget != NULL, "unregister widget is NULL" ); - gtk_widget_dnd_drop_set( widget, FALSE, NULL, 0, FALSE ); -}; + gtk_drag_dest_set( widget, + (GtkDestDefaults) 0, + (GtkTargetEntry*) NULL, + 0, + (GdkDragAction) 0 ); + + gtk_signal_disconnect_by_func( GTK_OBJECT(widget), + GTK_SIGNAL_FUNC(target_drag_leave), (gpointer) this ); + + gtk_signal_disconnect_by_func( GTK_OBJECT(widget), + GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this ); + + gtk_signal_disconnect_by_func( GTK_OBJECT(widget), + GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this ); + + gtk_signal_disconnect_by_func( GTK_OBJECT(widget), + GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this ); +} void wxDropTarget::RegisterWidget( GtkWidget *widget ) { - wxString formats; - int valid = 0; + wxCHECK_RET( widget != NULL, "register widget is NULL" ); - for ( uint i = 0; i < GetFormatCount(); i++ ) + GtkTargetEntry format; + format.info = 0; + format.flags = 0; + char buf[100]; + + int valid = 0; + for ( size_t i = 0; i < GetFormatCount(); i++ ) { wxDataFormat df = GetFormat( i ); switch (df) { case wxDF_TEXT: - if (i > 0) formats += ";"; - formats += "text/plain"; + format.target = "text/plain"; valid++; break; case wxDF_FILENAME: - if (i > 0) formats += ";"; - formats += "url:any"; + format.target = "file:ALL"; valid++; break; + case wxDF_PRIVATE: + wxPrivateDropTarget *pdt = (wxPrivateDropTarget *)this; + strcpy( buf, WXSTRINGCAST pdt->GetID() ); + format.target = buf; + valid++; default: break; - }; + } } - char *str = WXSTRINGCAST formats; + wxASSERT_MSG( valid != 0, "No valid DnD format supported." ); - gtk_widget_dnd_drop_set( widget, TRUE, &str, valid, FALSE ); -}; + gtk_drag_dest_set( widget, + GTK_DEST_DEFAULT_ALL, + &format, + 1, + (GdkDragAction)(GDK_ACTION_COPY | GDK_ACTION_MOVE) ); + + gtk_signal_connect( GTK_OBJECT(widget), "drag_leave", + GTK_SIGNAL_FUNC(target_drag_leave), (gpointer) this ); + + gtk_signal_connect( GTK_OBJECT(widget), "drag_motion", + GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this ); + + gtk_signal_connect( GTK_OBJECT(widget), "drag_drop", + GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this ); + + gtk_signal_connect( GTK_OBJECT(widget), "drag_data_received", + GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this ); +} // ---------------------------------------------------------------------------- // wxTextDropTarget // ---------------------------------------------------------------------------- -bool wxTextDropTarget::OnDrop( long x, long y, const void *pData ) +bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) ) { - OnDropText( x, y, (const char*)pData ); + OnDropText( x, y, (const char*)data ); return TRUE; -}; +} bool wxTextDropTarget::OnDropText( long x, long y, const char *psz ) { printf( "Got dropped text: %s.\n", psz ); printf( "At x: %d, y: %d.\n", (int)x, (int)y ); return TRUE; -}; +} size_t wxTextDropTarget::GetFormatCount() const { @@ -112,18 +231,43 @@ wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const // wxFileDropTarget // ---------------------------------------------------------------------------- -bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const WXUNUSED(aszFiles)[] ) +bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] ) { printf( "Got %d dropped files.\n", (int)nFiles ); printf( "At x: %d, y: %d.\n", (int)x, (int)y ); + for (size_t i = 0; i < nFiles; i++) + { + printf( aszFiles[i] ); + printf( "\n" ); + } return TRUE; } -bool wxFileDropTarget::OnDrop(long x, long y, const void *WXUNUSED(pData) ) +bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size ) { - char *str = "/this/is/a/path.txt"; + size_t number = 0; + size_t i; + char *text = (char*) data; + for (i = 0; i < size; i++) + if (text[i] == 0) number++; - return OnDropFiles(x, y, 1, &str ); + if (number == 0) return TRUE; + + char **files = new char*[number]; + + text = (char*) data; + for (i = 0; i < number; i++) + { + files[i] = text; + int len = strlen( text ); + text += len+1; + } + + bool ret = OnDropFiles( x, y, 1, files ); + + free( files ); + + return ret; } size_t wxFileDropTarget::GetFormatCount() const @@ -140,22 +284,6 @@ wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const // wxDropSource //------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -// drag request - -void gtk_drag_callback( GtkWidget *widget, GdkEvent *event, wxDataObject *data ) -{ - printf( "Data requested for dropping.\n" ); - - uint size = data->GetDataSize(); - char *ptr = new char[size]; - data->GetDataHere( ptr ); - - gtk_widget_dnd_data_set( widget, event, ptr, size ); - - delete ptr; -}; - wxDropSource::wxDropSource( wxWindow *win ) { g_blockEventsOnDrag = TRUE; @@ -164,11 +292,12 @@ wxDropSource::wxDropSource( wxWindow *win ) m_widget = win->m_widget; if (win->m_wxwindow) m_widget = win->m_wxwindow; - m_data = NULL; + m_data = (wxDataObject *) NULL; + m_retValue = wxDragCancel; m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); m_goaheadCursor = wxCursor( wxCURSOR_HAND ); -}; +} wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win ) { @@ -177,85 +306,43 @@ wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win ) m_window = win; m_widget = win->m_widget; if (win->m_wxwindow) m_widget = win->m_wxwindow; + m_retValue = wxDragCancel; m_data = &data; m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); m_goaheadCursor = wxCursor( wxCURSOR_HAND ); -}; +} void wxDropSource::SetData( wxDataObject &data ) { m_data = &data; -}; +} wxDropSource::~wxDropSource(void) { // if (m_data) delete m_data; g_blockEventsOnDrag = FALSE; -}; +} -wxDropSource::DragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) +wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) { - if (gdk_dnd.dnd_grabbed) return None; - if (gdk_dnd.drag_really) return None; + wxASSERT_MSG( m_data, "wxDragSource: no data" ); - if (!m_data) return None; - if (m_data->GetDataSize() == 0) return None; - - GdkWindowPrivate *wp = (GdkWindowPrivate*) m_widget->window; + if (!m_data) return (wxDragResult) wxDragNone; + if (m_data->GetDataSize() == 0) return (wxDragResult) wxDragNone; RegisterWindow(); - gdk_dnd.drag_perhaps = TRUE; - - gdk_dnd.dnd_drag_start.x = 5; - gdk_dnd.dnd_drag_start.y = 5; - gdk_dnd.real_sw = wp; - - if (gdk_dnd.drag_startwindows) - { - g_free( gdk_dnd.drag_startwindows ); - gdk_dnd.drag_startwindows = NULL; - }; - gdk_dnd.drag_numwindows = gdk_dnd.drag_really = 0; - - XWindowAttributes dnd_winattr; - XGetWindowAttributes( gdk_display, wp->xwindow, &dnd_winattr ); - wp->dnd_drag_savedeventmask = dnd_winattr.your_event_mask; - - gdk_dnd_drag_addwindow( m_widget->window ); - - GdkEventDragBegin ev; - ev.type = GDK_DRAG_BEGIN; - ev.window = m_widget->window; - ev.u.allflags = 0; - ev.u.flags.protocol_version = DND_PROTOCOL_VERSION; - - gdk_event_put( (GdkEvent*)&ev ); - - XGrabPointer( gdk_display, wp->xwindow, False, - ButtonMotionMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask, - GrabModeAsync, GrabModeAsync, gdk_root_window, None, CurrentTime ); - - gdk_dnd_set_drag_cursors( m_defaultCursor.GetCursor(), m_goaheadCursor.GetCursor() ); - - gdk_dnd.dnd_grabbed = TRUE; - gdk_dnd.drag_really = 1; - - int x = 0; - int y = 0; - gdk_window_get_pointer( m_widget->window, &x, &y, NULL ); - - gdk_dnd_display_drag_cursor( x, y, FALSE, TRUE ); - - while (gdk_dnd.drag_really || gdk_dnd.drag_perhaps) wxYield(); + // TODO UnregisterWindow(); - return Copy; -}; + g_blockEventsOnDrag = FALSE; + + return m_retValue; +} void wxDropSource::RegisterWindow(void) { @@ -271,7 +358,7 @@ void wxDropSource::RegisterWindow(void) formats += "text/plain"; break; case wxDF_FILENAME: - formats += "url:any"; + formats += "file:ALL"; break; default: break; @@ -279,17 +366,797 @@ void wxDropSource::RegisterWindow(void) char *str = WXSTRINGCAST formats; - gtk_widget_dnd_drag_set( m_widget, TRUE, &str, 1 ); - - gtk_signal_connect( GTK_OBJECT(m_widget), "drag_request_event", - GTK_SIGNAL_FUNC(gtk_drag_callback), (gpointer)m_data ); -}; + // TODO +} void wxDropSource::UnregisterWindow(void) { if (!m_widget) return; - gtk_widget_dnd_drag_set( m_widget, FALSE, NULL, 0 ); + // TODO +} + + +#else // NEW_CODE + +GtkWidget *shape_create_icon ( const wxIcon &shape, + gint x, + gint y, + gint px, + gint py, + gint window_type); + +/* XPM */ +static char * gv_xpm[] = { +"40 34 3 1", +" s None c None", +". c black", +"X c white", +" ", +" ", +" ...... ", +" ..XXXXXX.. ", +" .XXXXXXXXXX. ", +" .XXXXXXXXXXXX. ", +" .XXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXX. ", +" .XXX..XXXX..XXX. ", +" ....XX....XX....XX. ", +" .XXX.XXX..XXXX..XXX.... ", +" .XXXXXXXXXXXXXXXXXXX.XXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXXX. ", +" ..XXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXX... ", +" ..XXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXX.XXXXXXX. ", +" .XXXXXXX.XXXXXXX.XXXXXXX. ", +" .XXXXXXXX.XXXXXXX.XXXXXXX. ", +" .XXXXXXX...XXXXX...XXXXX. ", +" .XXXXXXX. ..... ..... ", +" ..XXXX.. ", +" .... ", +" ", +" ", +" "}; + +/* XPM */ +static char * page_xpm[] = { +/* width height ncolors chars_per_pixel */ +"32 32 5 1", +/* colors */ +" s None c None", +". c black", +"X c wheat", +"o c tan", +"O c #6699FF", +/* pixels */ +" ................... ", +" .XXXXXXXXXXXXXXXXX.. ", +" .XXXXXXXXXXXXXXXXX.o. ", +" .XXXXXXXXXXXXXXXXX.oo. ", +" .XXXXXXXXXXXXXXXXX.ooo. ", +" .XXXXXXXXXXXXXXXXX.oooo. ", +" .XXXXXXXXXXXXXXXXX....... ", +" .XXXXXOOOOOOOOOOXXXooooo. ", +" .XXXXXXXXXXXXXXXXXXooooo. ", +" .XXXXXOOOOOOOOOOXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXOOOOOOOOOXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXOOOOOOOOOOXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXOOOOOOOOOOXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXOOOOOOOOOXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXOOOOOOOOOOXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXOOOOOOOOOOXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXOOOOOOOOOOXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXOOOOOOOXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" .XXXXXXXXXXXXXXXXXXXXXXX. ", +" ......................... "}; + + +//----------------------------------------------------------------------------- +// globals +//----------------------------------------------------------------------------- + +wxDropSource *gs_currentDropSource = (wxDropSource*) NULL; + +//----------------------------------------------------------------------------- +// "drop_enter_event" +//----------------------------------------------------------------------------- + +static void gtk_target_enter_callback( GtkWidget *WXUNUSED(widget), + GdkEventDropEnter *WXUNUSED(event), + wxDropTarget *target ) +{ + if (target) + target->OnEnter(); +} + +//----------------------------------------------------------------------------- +// "drop_leave_event" +//----------------------------------------------------------------------------- + +static void gtk_target_leave_callback( GtkWidget *WXUNUSED(widget), + GdkEventDropLeave *WXUNUSED(event), + wxDropTarget *target ) +{ + if (target) + target->OnLeave(); +} + +//----------------------------------------------------------------------------- +// "drop_data_available_event" +//----------------------------------------------------------------------------- + +static void gtk_target_callback( GtkWidget *widget, + GdkEventDropDataAvailable *event, + wxDropTarget *target ) +{ + if (target) + { + int x = 0; + int y = 0; + gdk_window_get_pointer( widget->window, &x, &y, (GdkModifierType *) NULL ); +/* + printf( "Drop data is of type %s.\n", event->data_type ); +*/ + target->OnDrop( x, y, (const void*)event->data, (size_t)event->data_numbytes ); + } + +/* + g_free (event->data); + g_free (event->data_type); +*/ +} + +// ---------------------------------------------------------------------------- +// wxDropTarget +// ---------------------------------------------------------------------------- + +wxDropTarget::wxDropTarget() +{ + m_format = (wxDataFormat*) NULL; +} + +wxDropTarget::~wxDropTarget() +{ + if (m_format) delete m_format; +} + +wxDataFormat &wxDropTarget::GetFormat(size_t n) const +{ + return (*m_format); +} + +void wxDropTarget::UnregisterWidget( GtkWidget *widget ) +{ + if (!widget) return; + + gtk_signal_disconnect_by_func( GTK_OBJECT(widget), + GTK_SIGNAL_FUNC(gtk_target_callback), (gpointer) this ); + + gtk_widget_dnd_drop_set( widget, FALSE, (gchar **) NULL, 0, FALSE ); +} + +void wxDropTarget::RegisterWidget( GtkWidget *widget ) +{ + wxString formats; + int valid = 0; + + for ( size_t i = 0; i < GetFormatCount(); i++ ) + { + switch (GetFormat(i).GetType()) + { + case wxDF_TEXT: + { + if (i > 0) formats += ";"; + formats += "text/plain"; + valid++; + break; + } + case wxDF_FILENAME: + { + if (i > 0) formats += ";"; + formats += "file:ALL"; + valid++; + break; + } + case wxDF_PRIVATE: + { + if (i > 0) formats += ";"; + wxPrivateDropTarget *pdt = (wxPrivateDropTarget *)this; + formats += pdt->GetId(); + valid++; + break; + } + default: + break; + } + } + + char *str = WXSTRINGCAST formats; + + gtk_widget_dnd_drop_set( widget, TRUE, &str, valid, FALSE ); + + gtk_signal_connect( GTK_OBJECT(widget), "drop_data_available_event", + GTK_SIGNAL_FUNC(gtk_target_callback), (gpointer) this ); + + gtk_signal_connect( GTK_OBJECT(widget), "drop_enter_event", + GTK_SIGNAL_FUNC(gtk_target_enter_callback), (gpointer) this ); + + gtk_signal_connect( GTK_OBJECT(widget), "drop_leave_event", + GTK_SIGNAL_FUNC(gtk_target_leave_callback), (gpointer) this ); +} + +// ---------------------------------------------------------------------------- +// wxTextDropTarget +// ---------------------------------------------------------------------------- + +wxTextDropTarget::wxTextDropTarget() +{ + m_format = new wxDataFormat( wxDF_TEXT ); +} + +bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) ) +{ + OnDropText( x, y, (const char*)data ); + return TRUE; +} + +bool wxTextDropTarget::OnDropText( long x, long y, const char *psz ) +{ +/* + printf( "Got dropped text: %s.\n", psz ); + printf( "At x: %d, y: %d.\n", (int)x, (int)y ); +*/ + return TRUE; +} + +size_t wxTextDropTarget::GetFormatCount() const +{ + return 1; +} + +// ---------------------------------------------------------------------------- +// wxPrivateDropTarget +// ---------------------------------------------------------------------------- + +wxPrivateDropTarget::wxPrivateDropTarget() +{ + m_id = wxTheApp->GetAppName(); + m_format = new wxDataFormat( m_id ); +} + +void wxPrivateDropTarget::SetId( const wxString& id ) +{ + m_id = id; + m_format->SetId( id ); +} + +size_t wxPrivateDropTarget::GetFormatCount() const +{ + return 1; +} + +// ---------------------------------------------------------------------------- +// wxFileDropTarget +// ---------------------------------------------------------------------------- + +wxFileDropTarget::wxFileDropTarget() +{ + m_format = new wxDataFormat( wxDF_FILENAME ); +} + +bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] ) +{ + printf( "Got %d dropped files.\n", (int)nFiles ); + printf( "At x: %d, y: %d.\n", (int)x, (int)y ); + + for (size_t i = 0; i < nFiles; i++) + { + printf( aszFiles[i] ); + printf( "\n" ); + } + + return TRUE; +} + +bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size ) +{ + size_t number = 0; + size_t i; + char *text = (char*) data; + for ( i = 0; i < size; i++) + if (text[i] == 0) number++; + + if (number == 0) return TRUE; + + char **files = new char*[number]; + + text = (char*) data; + for (i = 0; i < number; i++) + { + files[i] = text; + int len = strlen( text ); + text += len+1; + } + + bool ret = OnDropFiles( x, y, 1, files ); + + free( files ); + + return ret; +} + +size_t wxFileDropTarget::GetFormatCount() const +{ + return 1; +} + +//------------------------------------------------------------------------- +// wxDropSource +//------------------------------------------------------------------------- + +static void +shape_motion (GtkWidget *widget, + GdkEventMotion * /*event*/); + +//----------------------------------------------------------------------------- +// "drag_request_event" +//----------------------------------------------------------------------------- + +void gtk_drag_callback( GtkWidget *widget, GdkEventDragRequest *event, wxDropSource *source ) +{ + wxDataBroker *data = source->m_data; + + if (!data) return; + + wxNode *node = data->m_dataObjects.First(); + { + wxDataObject *dobj = (wxDataObject*) node->Data(); + + if ((strcmp(event->data_type,"file:ALL") == 0) && + (dobj->GetFormat().GetType() == wxDF_FILENAME)) + { + wxFileDataObject *file_object = (wxFileDataObject*) dobj; + + wxString text = file_object->GetFiles(); + + char *s = WXSTRINGCAST text; + + gtk_widget_dnd_data_set( widget, + (GdkEvent*)event, + (unsigned char*) s, + (int) text.Length()+1 ); + + source->m_retValue = wxDragCopy; + + return; + } + + if ((strcmp(event->data_type,"text/plain") == 0) && + (dobj->GetFormat().GetType() == wxDF_TEXT)) + { + wxTextDataObject *text_object = (wxTextDataObject*) dobj; + + wxString text = text_object->GetText(); + + char *s = WXSTRINGCAST text; + + gtk_widget_dnd_data_set( widget, + (GdkEvent*)event, + (unsigned char*) s, + (int) text.Length()+1 ); + + source->m_retValue = wxDragCopy; + + return; + } + + if (dobj->GetFormat().GetType() == wxDF_PRIVATE) + { + wxPrivateDataObject *pdo = (wxPrivateDataObject*) dobj; + + if (pdo->GetId() == event->data_type) + { + gtk_widget_dnd_data_set( widget, + (GdkEvent*)event, + (unsigned char*) pdo->GetData(), + (int) pdo->GetSize() ); + + source->m_retValue = wxDragCopy; + + return; + } + } + + node = node->Next(); + } +} + +wxDropSource::wxDropSource( wxWindow *win, const wxIcon &go, const wxIcon &stop ) +{ + g_blockEventsOnDrag = TRUE; + + m_window = win; + m_widget = win->m_widget; + if (win->m_wxwindow) m_widget = win->m_wxwindow; + + m_data = (wxDataBroker*) NULL; + m_retValue = wxDragCancel; + + m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); + m_goaheadCursor = wxCursor( wxCURSOR_HAND ); + + m_goIcon = go; + if (wxNullIcon == go) m_goIcon = wxIcon( page_xpm ); + m_stopIcon = stop; + if (wxNullIcon == stop) m_stopIcon = wxIcon( gv_xpm ); +} + +wxDropSource::wxDropSource( wxDataObject *data, wxWindow *win, const wxIcon &go, const wxIcon &stop ) +{ + g_blockEventsOnDrag = TRUE; + + m_window = win; + m_widget = win->m_widget; + if (win->m_wxwindow) m_widget = win->m_wxwindow; + m_retValue = wxDragCancel; + + if (data) + { + m_data = new wxDataBroker(); + m_data->Add( data ); + } + else + { + m_data = (wxDataBroker*) NULL; + } + + m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); + m_goaheadCursor = wxCursor( wxCURSOR_HAND ); + + m_goIcon = go; + if (wxNullIcon == go) m_goIcon = wxIcon( page_xpm ); + m_stopIcon = stop; + if (wxNullIcon == stop) m_stopIcon = wxIcon( gv_xpm ); +} + +wxDropSource::wxDropSource( wxDataBroker *data, wxWindow *win ) +{ + g_blockEventsOnDrag = TRUE; + + m_window = win; + m_widget = win->m_widget; + if (win->m_wxwindow) m_widget = win->m_wxwindow; + m_retValue = wxDragCancel; + + m_data = data; + + m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); + m_goaheadCursor = wxCursor( wxCURSOR_HAND ); +} + +void wxDropSource::SetData( wxDataObject *data ) +{ + if (m_data) delete m_data; + + if (data) + { + m_data = new wxDataBroker(); + m_data->Add( data ); + } + else + { + m_data = (wxDataBroker*) NULL; + } +} + +void wxDropSource::SetData( wxDataBroker *data ) +{ + if (m_data) delete m_data; + + m_data = data; +} + +wxDropSource::~wxDropSource(void) +{ + if (m_data) delete m_data; + + g_blockEventsOnDrag = FALSE; +} + +wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) +{ + if (gdk_dnd.dnd_grabbed) return (wxDragResult) wxDragNone; + if (gdk_dnd.drag_really) return (wxDragResult) wxDragNone; + + wxASSERT_MSG( m_data, "wxDragSource: no data" ); - gtk_signal_disconnect_by_data( GTK_OBJECT(m_widget), (gpointer)m_data ); -}; + if (!m_data) return (wxDragResult) wxDragNone; + + static GtkWidget *drag_icon = (GtkWidget*) NULL; + static GtkWidget *drop_icon = (GtkWidget*) NULL; + + GdkPoint hotspot_1 = {0,-5 }; + + if (!drag_icon) + { + drag_icon = shape_create_icon ( m_stopIcon, + 440, 140, 0,0, GTK_WINDOW_POPUP); + + gtk_signal_connect (GTK_OBJECT (drag_icon), "destroy", + GTK_SIGNAL_FUNC(gtk_widget_destroyed), + &drag_icon); + + gtk_widget_hide (drag_icon); + } + + GdkPoint hotspot_2 = {-5,-5}; + + if (!drop_icon) + { + drop_icon = shape_create_icon ( m_goIcon, + 440, 140, 0,0, GTK_WINDOW_POPUP); + + gtk_signal_connect (GTK_OBJECT (drop_icon), "destroy", + GTK_SIGNAL_FUNC(gtk_widget_destroyed), + &drop_icon); + + gtk_widget_hide (drop_icon); + } + + + gdk_dnd_set_drag_shape( drag_icon->window, + &hotspot_1, + drop_icon->window, + &hotspot_2); + + + GdkWindowPrivate *wp = (GdkWindowPrivate*) m_widget->window; + + RegisterWindow(); + + gdk_dnd.drag_perhaps = TRUE; + + gdk_dnd.dnd_drag_start.x = 5; + gdk_dnd.dnd_drag_start.y = 5; + gdk_dnd.real_sw = wp; + + if (gdk_dnd.drag_startwindows) + { + g_free( gdk_dnd.drag_startwindows ); + gdk_dnd.drag_startwindows = (GdkWindow **) NULL; + } + gdk_dnd.drag_numwindows = gdk_dnd.drag_really = 0; + + XWindowAttributes dnd_winattr; + XGetWindowAttributes( gdk_display, wp->xwindow, &dnd_winattr ); + wp->dnd_drag_savedeventmask = dnd_winattr.your_event_mask; + + gdk_dnd_drag_addwindow( m_widget->window ); + + GdkEventDragBegin ev; + ev.type = GDK_DRAG_BEGIN; + ev.window = m_widget->window; + ev.u.allflags = 0; + ev.u.flags.protocol_version = DND_PROTOCOL_VERSION; + + gdk_event_put( (GdkEvent*)&ev ); + + XGrabPointer( gdk_display, wp->xwindow, False, + ButtonMotionMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask, + GrabModeAsync, GrabModeAsync, gdk_root_window, None, CurrentTime ); + + gdk_dnd_set_drag_cursors( m_defaultCursor.GetCursor(), m_goaheadCursor.GetCursor() ); + + gdk_dnd.dnd_grabbed = TRUE; + gdk_dnd.drag_really = 1; + + int x = 0; + int y = 0; + wxGetMousePosition( &x, &y ); + + gdk_dnd_display_drag_cursor( x, y, FALSE, TRUE ); + + gs_currentDropSource = this; + + while (gdk_dnd.drag_really || gdk_dnd.drag_perhaps) wxYield(); + + gs_currentDropSource = (wxDropSource*) NULL; + + UnregisterWindow(); + + g_blockEventsOnDrag = FALSE; + + return m_retValue; +} + +void wxDropSource::RegisterWindow(void) +{ + if (!m_data) return; + + wxString formats; + + wxNode *node = m_data->m_dataObjects.First(); + while (node) + { + wxDataObject* dobj = (wxDataObject*) node->Data(); + + switch (dobj->GetFormat().GetType()) + { + case wxDF_TEXT: + { + formats += "text/plain"; + break; + } + case wxDF_FILENAME: + { + formats += "file:ALL"; + break; + } + case wxDF_PRIVATE: + { + wxPrivateDataObject* pdo = (wxPrivateDataObject*) m_data; + formats += pdo->GetId(); + break; + } + default: + break; + } + node = node->Next(); + } + + char *str = WXSTRINGCAST formats; + + gtk_widget_dnd_drag_set( m_widget, TRUE, &str, 1 ); + + gtk_signal_connect( GTK_OBJECT(m_widget), "drag_request_event", + GTK_SIGNAL_FUNC(gtk_drag_callback), (gpointer)this ); +} + +void wxDropSource::UnregisterWindow(void) +{ + if (!m_widget) return; + + gtk_widget_dnd_drag_set( m_widget, FALSE, (gchar **) NULL, 0 ); + + gtk_signal_disconnect_by_data( GTK_OBJECT(m_widget), (gpointer)this ); +} + + +/* + * Shaped Windows + */ +static GdkWindow *root_win = (GdkWindow*) NULL; + +typedef struct _cursoroffset {gint x,y;} CursorOffset; + +static void +shape_pressed (GtkWidget *widget, GdkEventButton *event) +{ + CursorOffset *p; + + /* ignore double and triple click */ + if (event->type != GDK_BUTTON_PRESS) + return; + + p = (CursorOffset *)gtk_object_get_user_data (GTK_OBJECT(widget)); + p->x = (int) event->x; + p->y = (int) event->y; + + gtk_grab_add (widget); + gdk_pointer_grab (widget->window, TRUE, + (GdkEventMask) + (GDK_BUTTON_RELEASE_MASK | + GDK_BUTTON_MOTION_MASK | + GDK_POINTER_MOTION_HINT_MASK), + (GdkWindow*)NULL, + (GdkCursor*) NULL, 0); +} + + +static void +shape_released (GtkWidget *widget) +{ + gtk_grab_remove (widget); + gdk_pointer_ungrab (0); +} + +static void +shape_motion (GtkWidget *widget, + GdkEventMotion * /*event*/ ) +{ + gint xp, yp; + CursorOffset * p; + GdkModifierType mask; + + p = (CursorOffset *)gtk_object_get_user_data (GTK_OBJECT (widget)); + + /* + * Can't use event->x / event->y here + * because I need absolute coordinates. + */ + + gdk_window_get_pointer (root_win, &xp, &yp, &mask); + gtk_widget_set_uposition (widget, xp - p->x, yp - p->y); + + if (gs_currentDropSource) gs_currentDropSource->GiveFeedback( wxDragCopy, FALSE ); +} + +GtkWidget * +shape_create_icon (const wxIcon &shape, + gint x, + gint y, + gint px, + gint py, + gint window_type) +{ + /* + * GDK_WINDOW_TOPLEVEL works also, giving you a title border + */ + GtkWidget *window = gtk_window_new ((GtkWindowType)window_type); + + GtkWidget *fixed = gtk_fixed_new (); + gtk_widget_set_usize (fixed, 100,100); + gtk_container_add (GTK_CONTAINER (window), fixed); + gtk_widget_show (fixed); + + gtk_widget_set_events (window, + gtk_widget_get_events (window) | + GDK_BUTTON_MOTION_MASK | + GDK_POINTER_MOTION_HINT_MASK | + GDK_BUTTON_PRESS_MASK); + + gtk_widget_realize (window); + + GdkBitmap *mask = (GdkBitmap*) NULL; + if (shape.GetMask()) mask = shape.GetMask()->GetBitmap(); + + GtkWidget *pixmap = gtk_pixmap_new (shape.GetPixmap(), mask); + gtk_fixed_put (GTK_FIXED (fixed), pixmap, px,py); + gtk_widget_show (pixmap); + + gtk_widget_shape_combine_mask (window, mask, px,py); + + + gtk_signal_connect (GTK_OBJECT (window), "button_press_event", + GTK_SIGNAL_FUNC (shape_pressed),NULL); + gtk_signal_connect (GTK_OBJECT (window), "button_release_event", + GTK_SIGNAL_FUNC (shape_released),NULL); + gtk_signal_connect (GTK_OBJECT (window), "motion_notify_event", + GTK_SIGNAL_FUNC (shape_motion),NULL); + + CursorOffset*icon_pos = g_new (CursorOffset, 1); + gtk_object_set_user_data(GTK_OBJECT(window), icon_pos); + + gtk_widget_set_uposition (window, x, y); + gtk_widget_show (window); + + return window; +} + +#endif + // NEW_GTK_DND_CODE + +#endif + + // wxUSE_DRAG_AND_DROP \ No newline at end of file