X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5af019af85ec2e931a6c1dd33f305dcf48071c67..2adaf5969faf352d740f267b1a4ef79a2cf75980:/src/gtk1/dnd.cpp?ds=sidebyside diff --git a/src/gtk1/dnd.cpp b/src/gtk1/dnd.cpp index 7ffdb34a11..fdfeb4fade 100644 --- a/src/gtk1/dnd.cpp +++ b/src/gtk1/dnd.cpp @@ -4,11 +4,11 @@ // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling -// Licence: wxWindows licence +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ -#pragma implementation "dnd.h" + #pragma implementation "dnd.h" #endif #include "wx/dnd.h" @@ -21,11 +21,28 @@ #include "wx/intl.h" #include "wx/utils.h" -#include "gdk/gdk.h" -#include "gtk/gtk.h" -#include "gdk/gdkprivate.h" +#include +#include +#include -#include +#include +#include + +//----------------------------------------------------------------------------- +// idle system +//----------------------------------------------------------------------------- + +extern void wxapp_install_idle_handler(); +extern bool g_isIdle; + +//----------------------------------------------------------------------------- +// thread system +//----------------------------------------------------------------------------- + +#if wxUSE_THREADS +extern void wxapp_install_thread_wakeup(); +extern void wxapp_uninstall_thread_wakeup(); +#endif //---------------------------------------------------------------------------- // global data @@ -33,61 +50,25 @@ extern bool g_blockEventsOnDrag; +// the trace mask we use with wxLogTrace() - call +// wxLog::AddTraceMask(TRACE_DND) to enable the trace messages from here +// (there are quite a few of them, so don't enable this by default) +static const wxChar *TRACE_DND = _T("dnd"); + //---------------------------------------------------------------------------- // standard icons //---------------------------------------------------------------------------- -/* 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", +" s None c None", +". c black", +"X c wheat", +"o c tan", +"O c #6699FF", /* pixels */ " ................... ", " .XXXXXXXXXXXXXXXXX.. ", @@ -121,12 +102,7 @@ static char * page_xpm[] = { " .XXXXXXXXXXXXXXXXXXXXXXX. ", " .XXXXXXXXXXXXXXXXXXXXXXX. ", " ......................... "}; - - -#if (GTK_MINOR_VERSION > 0) -#include "gtk/gtkdnd.h" -#include "gtk/gtkselection.h" // ---------------------------------------------------------------------------- @@ -134,21 +110,23 @@ static char * page_xpm[] = { // ---------------------------------------------------------------------------- static void target_drag_leave( GtkWidget *WXUNUSED(widget), - GdkDragContext *context, - guint WXUNUSED(time), - wxDropTarget *drop_target ) + GdkDragContext *context, + guint WXUNUSED(time), + wxDropTarget *drop_target ) { + if (g_isIdle) wxapp_install_idle_handler(); + /* inform the wxDropTarget about the current GdkDragContext. this is only valid for the duration of this call */ drop_target->SetDragContext( context ); - + /* we don't need return values. this event is just for information */ drop_target->OnLeave(); - + /* this has to be done because GDK has no "drag_enter" event */ drop_target->m_firstMotion = TRUE; - + /* after this, invalidate the drop_target's GdkDragContext */ drop_target->SetDragContext( (GdkDragContext*) NULL ); } @@ -158,41 +136,57 @@ static void target_drag_leave( GtkWidget *WXUNUSED(widget), // ---------------------------------------------------------------------------- static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), - GdkDragContext *context, - gint x, - gint y, - guint time, - wxDropTarget *drop_target ) + GdkDragContext *context, + gint x, + gint y, + guint time, + wxDropTarget *drop_target ) { + if (g_isIdle) wxapp_install_idle_handler(); + /* Owen Taylor: "if the coordinates not in a drop zone, return FALSE, otherwise call gtk_drag_status() and return TRUE" */ - + /* inform the wxDropTarget about the current GdkDragContext. this is only valid for the duration of this call */ drop_target->SetDragContext( context ); - + + wxDragResult result; + if ( context->suggested_action == GDK_ACTION_COPY ) + result = wxDragCopy; + else + result = wxDragMove; + if (drop_target->m_firstMotion) { /* the first "drag_motion" event substitutes a "drag_enter" event */ - drop_target->OnEnter(); + result = drop_target->OnEnter( x, y, result ); + } + else + { + /* give program a chance to react (i.e. to say no by returning FALSE) */ + result = drop_target->OnDragOver( x, y, result ); } - - /* give program a chance to react (i.e. to say no by returning FALSE) */ - bool ret = drop_target->OnMove( x, y ); - - /* we don't yet handle which "actions" (i.e. copy or move) - the target accepts. so far we simply accept the - suggested action. TODO. */ + + bool ret = wxIsDragResultOk( result ); if (ret) - gdk_drag_status( context, context->suggested_action, time ); - + { + GdkDragAction action; + if (result == wxDragCopy) + action = GDK_ACTION_COPY; + else + action = GDK_ACTION_MOVE; + + gdk_drag_status( context, action, time ); + } + /* after this, invalidate the drop_target's GdkDragContext */ drop_target->SetDragContext( (GdkDragContext*) NULL ); - + /* this has to be done because GDK has no "drag_enter" event */ drop_target->m_firstMotion = FALSE; - + return ret; } @@ -201,55 +195,97 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), // ---------------------------------------------------------------------------- static gboolean target_drag_drop( GtkWidget *widget, - GdkDragContext *context, - gint x, - gint y, - guint time, - wxDropTarget *drop_target ) + GdkDragContext *context, + gint x, + gint y, + guint time, + wxDropTarget *drop_target ) { + if (g_isIdle) wxapp_install_idle_handler(); + /* Owen Taylor: "if the drop is not in a drop zone, return FALSE, otherwise, if you aren't accepting the drop, call gtk_drag_finish() with success == FALSE otherwise call gtk_drag_data_get()" */ // printf( "drop.\n" ); - + /* this seems to make a difference between not accepting due to wrong target area and due to wrong format. let us hope that this is not required.. */ - + /* inform the wxDropTarget about the current GdkDragContext. this is only valid for the duration of this call */ drop_target->SetDragContext( context ); - + /* inform the wxDropTarget about the current drag widget. this is only valid for the duration of this call */ drop_target->SetDragWidget( widget ); - + /* inform the wxDropTarget about the current drag time. this is only valid for the duration of this call */ drop_target->SetDragTime( time ); - + +/* + wxDragResult result = wxDragMove; + if (context->suggested_action == GDK_ACTION_COPY) result = wxDragCopy; +*/ + + /* reset the block here as someone might very well + show a dialog as a reaction to a drop and this + wouldn't work without events */ + g_blockEventsOnDrag = FALSE; + bool ret = drop_target->OnDrop( x, y ); - + if (!ret) { + wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") ); + /* cancel the whole thing */ gtk_drag_finish( context, - FALSE, /* no success */ - FALSE, /* don't delete data on dropping side */ - time ); + FALSE, /* no success */ + FALSE, /* don't delete data on dropping side */ + time ); } - + else + { + wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned TRUE") ); + +#if wxUSE_THREADS + /* disable GUI threads */ + wxapp_uninstall_thread_wakeup(); +#endif + + GdkAtom format = drop_target->GetMatchingPair(); + wxASSERT( format ); + +/* + GdkDragAction action = GDK_ACTION_MOVE; + if (result == wxDragCopy) action == GDK_ACTION_COPY; + context->action = action; +*/ + /* this should trigger an "drag_data_received" event */ + gtk_drag_get_data( widget, + context, + format, + time ); + +#if wxUSE_THREADS + /* re-enable GUI threads */ + wxapp_install_thread_wakeup(); +#endif + } + /* after this, invalidate the drop_target's GdkDragContext */ drop_target->SetDragContext( (GdkDragContext*) NULL ); - + /* after this, invalidate the drop_target's drag widget */ drop_target->SetDragWidget( (GtkWidget*) NULL ); - + /* this has to be done because GDK has no "drag_enter" event */ drop_target->m_firstMotion = TRUE; - + return ret; } @@ -258,43 +294,55 @@ static gboolean target_drag_drop( GtkWidget *widget, // ---------------------------------------------------------------------------- static void target_drag_data_received( GtkWidget *WXUNUSED(widget), - GdkDragContext *context, - gint x, - gint y, - GtkSelectionData *data, - guint WXUNUSED(info), - guint time, - wxDropTarget *drop_target ) + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *data, + guint WXUNUSED(info), + guint time, + wxDropTarget *drop_target ) { + if (g_isIdle) wxapp_install_idle_handler(); + /* Owen Taylor: "call gtk_drag_finish() with success == TRUE" */ -// printf( "data received.\n" ); - if ((data->length <= 0) || (data->format != 8)) { /* negative data length and non 8-bit data format qualifies for junk */ gtk_drag_finish (context, FALSE, FALSE, time); - - return; + + return; } - + + wxLogTrace(TRACE_DND, wxT( "Drop target: data received event") ); + /* inform the wxDropTarget about the current GtkSelectionData. this is only valid for the duration of this call */ drop_target->SetDragData( data ); - - if (drop_target->OnData( x, y )) + + wxDragResult result; + if ( context->suggested_action == GDK_ACTION_COPY ) + result = wxDragCopy; + else + result = wxDragMove; + + if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) ) { - /* tell GTK that data transfer was successfull */ + wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned TRUE") ); + + /* tell GTK that data transfer was successfull */ gtk_drag_finish( context, TRUE, FALSE, time ); } else { - /* tell GTK that data transfer was not successfull */ + wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") ); + + /* tell GTK that data transfer was not successfull */ gtk_drag_finish( context, FALSE, FALSE, time ); } - + /* after this, invalidate the drop_target's drag data */ drop_target->SetDragData( (GtkSelectionData*) NULL ); } @@ -303,7 +351,8 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget), // wxDropTarget //---------------------------------------------------------------------------- -wxDropTarget::wxDropTarget() +wxDropTarget::wxDropTarget( wxDataObject *data ) + : wxDropTargetBase( data ) { m_firstMotion = TRUE; m_dragContext = (GdkDragContext*) NULL; @@ -312,462 +361,420 @@ wxDropTarget::wxDropTarget() m_dragTime = 0; } -wxDropTarget::~wxDropTarget() +wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x), + wxCoord WXUNUSED(y), + wxDragResult def ) { -} + // GetMatchingPair() checks for m_dataObject too, no need to do it here -void wxDropTarget::OnEnter() -{ -} + // disable the debug message from GetMatchingPair() - there are too many + // of them otherwise +#ifdef __WXDEBUG__ + wxLogNull noLog; +#endif // Debug -void wxDropTarget::OnLeave() -{ + return (GetMatchingPair() != (GdkAtom) 0) ? def : wxDragNone; } -bool wxDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) ) +bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) ) { - return TRUE; -} + if (!m_dataObject) + return FALSE; -bool wxDropTarget::OnDrop( int WXUNUSED(x), int WXUNUSED(y) ) -{ - return FALSE; + return (GetMatchingPair() != (GdkAtom) 0); } -bool wxDropTarget::OnData( int WXUNUSED(x), int WXUNUSED(y) ) +wxDragResult wxDropTarget::OnData( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), + wxDragResult def ) { - return FALSE; + if (!m_dataObject) + return wxDragNone; + + if (GetMatchingPair() == (GdkAtom) 0) + return wxDragNone; + + return GetData() ? def : wxDragNone; } -bool wxDropTarget::RequestData( wxDataFormat format ) +GdkAtom wxDropTarget::GetMatchingPair() { - if (!m_dragContext) return FALSE; - if (!m_dragWidget) return FALSE; - - /* this should trigger an "drag_data_received" event */ - gtk_drag_get_data( m_dragWidget, - m_dragContext, - format.GetAtom(), - m_dragTime ); - - return TRUE; -} + if (!m_dataObject) + return (GdkAtom) 0; + + if (!m_dragContext) + return (GdkAtom) 0; -bool wxDropTarget::IsSupported( wxDataFormat format ) -{ - if (!m_dragContext) return FALSE; - GList *child = m_dragContext->targets; while (child) { GdkAtom formatAtom = (GdkAtom) GPOINTER_TO_INT(child->data); - -// char *name = gdk_atom_name( formatAtom ); -// if (name) printf( "Format available: %s.\n", name ); - - if (formatAtom == format.GetAtom()) return TRUE; + wxDataFormat format( formatAtom ); + +#ifdef __WXDEBUG__ + wxLogTrace(TRACE_DND, wxT("Drop target: drag has format: %s"), + format.GetId().c_str()); +#endif // Debug + + if (m_dataObject->IsSupportedFormat( format )) + return formatAtom; + child = child->next; } - return FALSE; + return (GdkAtom) 0; } - -bool wxDropTarget::GetData( wxDataObject *data_object ) + +bool wxDropTarget::GetData() { - if (!m_dragData) return FALSE; - - if (m_dragData->target != data_object->GetFormat().GetAtom()) return FALSE; - - if (data_object->GetFormat().GetType() == wxDF_TEXT) - { - wxTextDataObject *text_object = (wxTextDataObject*)data_object; - text_object->SetText( (const char*)m_dragData->data ); - } else - - if (data_object->GetFormat().GetType() == wxDF_FILENAME) - { - } else - - if (data_object->GetFormat().GetType() == wxDF_PRIVATE) - { - wxPrivateDataObject *priv_object = (wxPrivateDataObject*)data_object; - priv_object->SetData( (const char*)m_dragData->data, (size_t)m_dragData->length ); - } - + if (!m_dragData) + return FALSE; + + if (!m_dataObject) + return FALSE; + + wxDataFormat dragFormat( m_dragData->target ); + + if (!m_dataObject->IsSupportedFormat( dragFormat )) + return FALSE; + + m_dataObject->SetData( dragFormat, (size_t)m_dragData->length, (const void*)m_dragData->data ); + return TRUE; } - + void wxDropTarget::UnregisterWidget( GtkWidget *widget ) { - wxCHECK_RET( widget != NULL, "unregister widget is NULL" ); - + wxCHECK_RET( widget != NULL, wxT("unregister widget is NULL") ); + gtk_drag_dest_unset( widget ); - + gtk_signal_disconnect_by_func( GTK_OBJECT(widget), - GTK_SIGNAL_FUNC(target_drag_leave), (gpointer) this ); + 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_FUNC(target_drag_motion), (gpointer) this ); gtk_signal_disconnect_by_func( GTK_OBJECT(widget), - GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this ); + 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 ); + GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this ); } void wxDropTarget::RegisterWidget( GtkWidget *widget ) { - wxCHECK_RET( widget != NULL, "register widget is NULL" ); - + wxCHECK_RET( widget != NULL, wxT("register widget is NULL") ); + /* gtk_drag_dest_set() determines what default behaviour we'd like GTK to supply. we don't want to specify out targets (=formats) or actions in advance (i.e. not GTK_DEST_DEFAULT_MOTION and not GTK_DEST_DEFAULT_DROP). instead we react individually to "drag_motion" and "drag_drop" events. this makes it possible - to allow dropping on only a small area. we should set + to allow dropping on only a small area. we should set GTK_DEST_DEFAULT_HIGHLIGHT as this will switch on the nice highlighting if dragging over standard controls, but this seems to be broken without the other two. */ - + gtk_drag_dest_set( widget, - (GtkDestDefaults) 0, /* no default behaviour */ - (GtkTargetEntry*) NULL, /* we don't supply any formats here */ - 0, /* number of targets = 0 */ - (GdkDragAction) 0 ); /* we don't supply any actions here */ - + (GtkDestDefaults) 0, /* no default behaviour */ + (GtkTargetEntry*) NULL, /* we don't supply any formats here */ + 0, /* number of targets = 0 */ + (GdkDragAction) 0 ); /* we don't supply any actions here */ + gtk_signal_connect( GTK_OBJECT(widget), "drag_leave", - GTK_SIGNAL_FUNC(target_drag_leave), (gpointer) this ); + 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_FUNC(target_drag_motion), (gpointer) this ); gtk_signal_connect( GTK_OBJECT(widget), "drag_drop", - GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this ); + 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::OnMove( int WXUNUSED(x), int WXUNUSED(y) ) -{ - return IsSupported( wxDF_TEXT ); + GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this ); } -bool wxTextDropTarget::OnDrop( int WXUNUSED(x), int WXUNUSED(y) ) -{ - if (IsSupported( wxDF_TEXT )) - { - RequestData( wxDF_TEXT ); - return TRUE; - } - - return FALSE; -} +//---------------------------------------------------------------------------- +// "drag_data_get" +//---------------------------------------------------------------------------- -bool wxTextDropTarget::OnData( int x, int y ) +static void +source_drag_data_get (GtkWidget *WXUNUSED(widget), + GdkDragContext *WXUNUSED(context), + GtkSelectionData *selection_data, + guint WXUNUSED(info), + guint WXUNUSED(time), + wxDropSource *drop_source ) { - wxTextDataObject data; - if (!GetData( &data )) return FALSE; - - OnDropText( x, y, data.GetText() ); - - return TRUE; -} + if (g_isIdle) wxapp_install_idle_handler(); -//------------------------------------------------------------------------- -// wxPrivateDropTarget -//------------------------------------------------------------------------- + wxDataFormat format( selection_data->target ); -wxPrivateDropTarget::wxPrivateDropTarget() -{ - m_id = wxTheApp->GetAppName(); -} + wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"), + format.GetId().c_str()); -wxPrivateDropTarget::wxPrivateDropTarget( const wxString &id ) -{ - m_id = id; -} + drop_source->m_retValue = wxDragCancel; -bool wxPrivateDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) ) -{ - return IsSupported( m_id ); -} + wxDataObject *data = drop_source->GetDataObject(); -bool wxPrivateDropTarget::OnDrop( int WXUNUSED(x), int WXUNUSED(y) ) -{ - if (!IsSupported( m_id )) - { - RequestData( m_id ); - return FALSE; + if (!data) + { + wxLogTrace(TRACE_DND, wxT("Drop source: no data object") ); + return; } - - return FALSE; -} - -bool wxPrivateDropTarget::OnData( int x, int y ) -{ - if (!IsSupported( m_id )) return FALSE; - - wxPrivateDataObject data; - if (!GetData( &data )) return FALSE; - - OnDropData( x, y, data.GetData(), data.GetSize() ); - - return TRUE; -} - -//---------------------------------------------------------------------------- -// A drop target which accepts files (dragged from File Manager or Explorer) -//---------------------------------------------------------------------------- - -bool wxFileDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) ) -{ - return IsSupported( wxDF_FILENAME ); -} -bool wxFileDropTarget::OnDrop( int x, int y ) -{ - if (IsSupported( wxDF_FILENAME )) + if (!data->IsSupportedFormat(format)) { - RequestData( wxDF_FILENAME ); - return TRUE; + wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") ); + return; } - - return FALSE; -} -bool wxFileDropTarget::OnData( int x, int y ) -{ - wxFileDataObject data; - if (!GetData( &data )) return FALSE; - - /* get number of substrings /root/mytext.txt/0/root/myothertext.txt/0/0 */ - size_t number = 0; - size_t i; - size_t size = data.GetFiles().Length(); - char *text = WXSTRINGCAST data.GetFiles(); - for ( i = 0; i < size; i++) - if (text[i] == 0) number++; - - if (number == 0) return FALSE; - - char **files = new char*[number]; - - text = WXSTRINGCAST data.GetFiles(); - for (i = 0; i < number; i++) + if (data->GetDataSize(format) == 0) { - files[i] = text; - int len = strlen( text ); - text += len+1; + wxLogTrace(TRACE_DND, wxT("Drop source: empty data") ); + return; } - OnDropFiles( x, y, number, files ); - - free( files ); - - return TRUE; -} + size_t size = data->GetDataSize(format); -//---------------------------------------------------------------------------- -// "drag_data_get" -//---------------------------------------------------------------------------- +// printf( "data size: %d.\n", (int)data_size ); -static void -source_drag_data_get (GtkWidget *WXUNUSED(widget), - GdkDragContext *context, - GtkSelectionData *selection_data, - guint WXUNUSED(info), - guint WXUNUSED(time), - wxDropSource *drop_source ) -{ -// char *name = gdk_atom_name( selection_data->target ); -// if (name) printf( "Format requested: %s.\n", name ); - - wxNode *node = drop_source->m_data->m_dataObjects.First(); - while (node) + guchar *d = new guchar[size]; + + if (!data->GetDataHere( format, (void*)d )) { - wxDataObject *data_object = (wxDataObject*) node->Data(); - if (data_object->GetFormat().GetAtom() == selection_data->target) - { - size_t data_size = data_object->GetSize(); - if (data_size > 0) - { - guchar *buffer = new guchar[data_size]; - data_object->WriteData( buffer ); - - gtk_selection_data_set( selection_data, - selection_data->target, - 8, /* 8-bit */ - buffer, - data_size ); - - free( buffer ); - - /* so far only copy, no moves. TODO. */ - drop_source->m_retValue = wxDragCopy; - - return; - } - } - - node = node->Next(); + delete[] d; + return; } - - drop_source->m_retValue = wxDragCancel; + +#if wxUSE_THREADS + /* disable GUI threads */ + wxapp_uninstall_thread_wakeup(); +#endif + + gtk_selection_data_set( selection_data, + selection_data->target, + 8, // 8-bit + d, + size ); + +#if wxUSE_THREADS + /* enable GUI threads */ + wxapp_install_thread_wakeup(); +#endif + + delete[] d; } - + //---------------------------------------------------------------------------- // "drag_data_delete" //---------------------------------------------------------------------------- static void source_drag_data_delete( GtkWidget *WXUNUSED(widget), - GdkDragContext *WXUNUSED(context), - wxDropSource *drop_source ) + GdkDragContext *WXUNUSED(context), + wxDropSource *WXUNUSED(drop_source) ) { -// printf( "Delete the data!\n" ); + if (g_isIdle) + wxapp_install_idle_handler(); - drop_source->m_retValue = wxDragMove; + // printf( "Drag source: drag_data_delete\n" ); } - + //---------------------------------------------------------------------------- // "drag_begin" //---------------------------------------------------------------------------- static void source_drag_begin( GtkWidget *WXUNUSED(widget), - GdkDragContext *WXUNUSED(context), - wxDropSource *WXUNUSED(drop_source) ) + GdkDragContext *WXUNUSED(context), + wxDropSource *WXUNUSED(drop_source) ) { -// printf( "drag_begin.\n" ); + if (g_isIdle) + wxapp_install_idle_handler(); + + // printf( "Drag source: drag_begin.\n" ); } - + //---------------------------------------------------------------------------- // "drag_end" //---------------------------------------------------------------------------- static void source_drag_end( GtkWidget *WXUNUSED(widget), - GdkDragContext *WXUNUSED(context), - wxDropSource *drop_source ) + GdkDragContext *WXUNUSED(context), + wxDropSource *drop_source ) { -// printf( "drag_end.\n" ); + if (g_isIdle) wxapp_install_idle_handler(); + + // printf( "Drag source: drag_end.\n" ); drop_source->m_waiting = FALSE; } - + +//----------------------------------------------------------------------------- +// "configure_event" from m_iconWindow +//----------------------------------------------------------------------------- + +static gint +gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source ) +{ + if (g_isIdle) + wxapp_install_idle_handler(); + + wxDragResult action = wxDragNone; + if (source->m_dragContext->action == GDK_ACTION_COPY) action = wxDragCopy; + if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove; + + source->GiveFeedback( action ); + + return 0; +} + //--------------------------------------------------------------------------- // wxDropSource //--------------------------------------------------------------------------- -wxDropSource::wxDropSource( wxWindow *win, const wxIcon &go, const wxIcon &stop ) +wxDropSource::wxDropSource(wxWindow *win, + const wxIcon &iconCopy, + const wxIcon &iconMove, + const wxIcon &iconNone) { - g_blockEventsOnDrag = TRUE; m_waiting = TRUE; - + + m_iconWindow = (GtkWidget*) NULL; + 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 ); + SetIcons(iconCopy, iconMove, iconNone); } -wxDropSource::wxDropSource( wxDataObject *data, wxWindow *win, const wxIcon &go, const wxIcon &stop ) +wxDropSource::wxDropSource(wxDataObject& data, + wxWindow *win, + const wxIcon &iconCopy, + const wxIcon &iconMove, + const wxIcon &iconNone) { m_waiting = 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 ); -} + SetData( data ); + + m_iconWindow = (GtkWidget*) NULL; -wxDropSource::wxDropSource( wxDataBroker *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 ); + SetIcons(iconCopy, iconMove, iconNone); } -void wxDropSource::SetData( wxDataObject *data ) +void wxDropSource::SetIcons(const wxIcon &iconCopy, + const wxIcon &iconMove, + const wxIcon &iconNone) { - if (m_data) delete m_data; - - if (data) - { - m_data = new wxDataBroker(); - m_data->Add( data ); - } - else - { - m_data = (wxDataBroker*) NULL; - } + m_iconCopy = iconCopy; + m_iconMove = iconMove; + m_iconNone = iconNone; + + if ( !m_iconCopy.Ok() ) + m_iconCopy = wxIcon(page_xpm); + if ( !m_iconMove.Ok() ) + m_iconMove = m_iconCopy; + if ( !m_iconNone.Ok() ) + m_iconNone = m_iconCopy; } -void wxDropSource::SetData( wxDataBroker *data ) +wxDropSource::~wxDropSource() { - if (m_data) delete m_data; - - m_data = data; } -wxDropSource::~wxDropSource(void) +void wxDropSource::PrepareIcon( int action, GdkDragContext *context ) { - if (m_data) delete m_data; + // get the right icon to display + wxIcon *icon = NULL; + if ( action & GDK_ACTION_MOVE ) + icon = &m_iconMove; + else if ( action & GDK_ACTION_COPY ) + icon = &m_iconCopy; + else + icon = &m_iconNone; - g_blockEventsOnDrag = FALSE; + GdkBitmap *mask; + if ( icon->GetMask() ) + mask = icon->GetMask()->GetBitmap(); + else + mask = (GdkBitmap *)NULL; + + GdkPixmap *pixmap = icon->GetPixmap(); + + gint width,height; + gdk_window_get_size (pixmap, &width, &height); + + GdkColormap *colormap = gtk_widget_get_colormap( m_widget ); +#ifndef __WXGTK20__ + gtk_widget_push_visual (gdk_colormap_get_visual (colormap)); +#endif + gtk_widget_push_colormap (colormap); + + m_iconWindow = gtk_window_new (GTK_WINDOW_POPUP); + gtk_widget_set_events (m_iconWindow, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK); + gtk_widget_set_app_paintable (GTK_WIDGET (m_iconWindow), TRUE); + +#ifndef __WXGTK20__ + gtk_widget_pop_visual (); +#endif + gtk_widget_pop_colormap (); + + gtk_widget_set_usize (m_iconWindow, width, height); + gtk_widget_realize (m_iconWindow); + + gtk_signal_connect( GTK_OBJECT(m_iconWindow), "configure_event", + GTK_SIGNAL_FUNC(gtk_dnd_window_configure_callback), (gpointer)this ); + + gdk_window_set_back_pixmap (m_iconWindow->window, pixmap, FALSE); + + if (mask) + gtk_widget_shape_combine_mask (m_iconWindow, mask, 0, 0); + + gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 ); } - -wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) + +wxDragResult wxDropSource::DoDragDrop( bool allowMove ) { - wxASSERT_MSG( m_data, "wxDragSource: no data" ); - - if (!m_data) return (wxDragResult) wxDragNone; - + wxASSERT_MSG( m_data, wxT("Drop source: no data") ); + + if (!m_data) + return (wxDragResult) wxDragNone; + + if (m_data->GetFormatCount() == 0) + return (wxDragResult) wxDragNone; + + // still in drag + if (g_blockEventsOnDrag) + return (wxDragResult) wxDragNone; + + // disabled for now g_blockEventsOnDrag = TRUE; - + RegisterWindow(); - + m_waiting = TRUE; GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 ); - gtk_target_list_add( target_list, gdk_atom_intern( "STRING", FALSE ), 0, 0 ); - + + wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ]; + m_data->GetAllFormats( array ); + for (size_t i = 0; i < m_data->GetFormatCount(); i++) + { + GdkAtom atom = array[i]; + wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom )); + gtk_target_list_add( target_list, atom, 0, 0 ); + } + delete[] array; + GdkEventMotion event; event.window = m_widget->window; int x = 0; @@ -777,41 +784,49 @@ wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) event.x = x; event.y = y; event.state = state; - + event.time = (guint32)GDK_CURRENT_TIME; + /* GTK wants to know which button was pressed which caused the dragging */ int button_number = 0; if (event.state & GDK_BUTTON1_MASK) button_number = 1; else if (event.state & GDK_BUTTON2_MASK) button_number = 2; else if (event.state & GDK_BUTTON3_MASK) button_number = 3; +#if wxUSE_THREADS + /* disable GUI threads */ + wxapp_uninstall_thread_wakeup(); +#endif + /* don't start dragging if no button is down */ if (button_number) { + GdkDragAction action = GDK_ACTION_COPY; + if (allowMove) action = (GdkDragAction)(GDK_ACTION_MOVE|GDK_ACTION_COPY); GdkDragContext *context = gtk_drag_begin( m_widget, - target_list, - GDK_ACTION_COPY, - button_number, /* number of mouse button which started drag */ - (GdkEvent*) &event ); - - wxMask *mask = m_goIcon.GetMask(); - GdkBitmap *bm = (GdkBitmap *) NULL; - if (mask) bm = mask->GetBitmap(); - GdkPixmap *pm = m_goIcon.GetPixmap(); - - gtk_drag_set_icon_pixmap( context, - gtk_widget_get_colormap( m_widget ), - pm, - bm, - 0, - 0 ); - - gdk_flush(); - - while (m_waiting) wxYield(); + target_list, + action, + button_number, /* number of mouse button which started drag */ + (GdkEvent*) &event ); + + m_dragContext = context; + + PrepareIcon( action, context ); + + while (m_waiting) gtk_main_iteration(); + + if (context->action == GDK_ACTION_COPY) + m_retValue = wxDragCopy; + if (context->action == GDK_ACTION_MOVE) + m_retValue = wxDragMove; } +#if wxUSE_THREADS + /* re-enable GUI threads */ + wxapp_install_thread_wakeup(); +#endif + g_blockEventsOnDrag = FALSE; - + UnregisterWindow(); return m_retValue; @@ -820,731 +835,31 @@ wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) void wxDropSource::RegisterWindow() { if (!m_widget) return; - + gtk_signal_connect( GTK_OBJECT(m_widget), "drag_data_get", - GTK_SIGNAL_FUNC (source_drag_data_get), (gpointer) this); + GTK_SIGNAL_FUNC (source_drag_data_get), (gpointer) this); gtk_signal_connect (GTK_OBJECT(m_widget), "drag_data_delete", - GTK_SIGNAL_FUNC (source_drag_data_delete), (gpointer) this ); + GTK_SIGNAL_FUNC (source_drag_data_delete), (gpointer) this ); gtk_signal_connect (GTK_OBJECT(m_widget), "drag_begin", - GTK_SIGNAL_FUNC (source_drag_begin), (gpointer) this ); + GTK_SIGNAL_FUNC (source_drag_begin), (gpointer) this ); gtk_signal_connect (GTK_OBJECT(m_widget), "drag_end", - GTK_SIGNAL_FUNC (source_drag_end), (gpointer) this ); + GTK_SIGNAL_FUNC (source_drag_end), (gpointer) this ); } void wxDropSource::UnregisterWindow() { if (!m_widget) return; - + gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), - GTK_SIGNAL_FUNC(source_drag_data_get), (gpointer) this ); + GTK_SIGNAL_FUNC(source_drag_data_get), (gpointer) this ); gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), - GTK_SIGNAL_FUNC(source_drag_data_delete), (gpointer) this ); + GTK_SIGNAL_FUNC(source_drag_data_delete), (gpointer) this ); gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), - GTK_SIGNAL_FUNC(source_drag_begin), (gpointer) this ); + GTK_SIGNAL_FUNC(source_drag_begin), (gpointer) this ); gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), - GTK_SIGNAL_FUNC(source_drag_end), (gpointer) this ); + GTK_SIGNAL_FUNC(source_drag_end), (gpointer) this ); } - -#else // NEW_CODE - -//---------------------------------------------------------------------------- -// forward -//---------------------------------------------------------------------------- - -GtkWidget *shape_create_icon ( const wxIcon &shape, - gint x, - gint y, - gint px, - gint py, - gint window_type); - -//----------------------------------------------------------------------------- -// 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" ); - - 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 + // wxUSE_DRAG_AND_DROP