X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..222702b112dcc7bebe018d6f4d66fe469fefd02c:/src/gtk/dnd.cpp diff --git a/src/gtk/dnd.cpp b/src/gtk/dnd.cpp index a041507bf0..dcb0b56c32 100644 --- a/src/gtk/dnd.cpp +++ b/src/gtk/dnd.cpp @@ -7,12 +7,17 @@ // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "dnd.h" #endif -#include "wx/dnd.h" +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" +#include "wx/dnd.h" +#include "wx/log.h" + + #if wxUSE_DRAG_AND_DROP #include "wx/window.h" @@ -21,8 +26,8 @@ #include "wx/intl.h" #include "wx/utils.h" -#include -#include +#include "wx/gtk/private.h" + #include #include @@ -40,8 +45,6 @@ extern bool g_isIdle; //----------------------------------------------------------------------------- #if wxUSE_THREADS -extern void wxapp_install_thread_wakeup(); -extern void wxapp_uninstall_thread_wakeup(); #endif //---------------------------------------------------------------------------- @@ -50,60 +53,125 @@ extern void wxapp_uninstall_thread_wakeup(); extern bool g_blockEventsOnDrag; +// the flags used for the last DoDragDrop() +static long gs_flagsForDrag = 0; + +// 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 * 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", +/* Copyright (c) Julian Smart */ +static const char * page_xpm[] = { +/* columns rows colors chars-per-pixel */ +"32 32 37 1", +"5 c #7198D9", +", c #769CDA", +"2 c #DCE6F6", +"i c #FFFFFF", +"e c #779DDB", +": c #9AB6E4", +"9 c #EAF0FA", +"- c #B1C7EB", +"$ c #6992D7", +"y c #F7F9FD", +"= c #BED0EE", +"q c #F0F5FC", +"; c #A8C0E8", +"@ c #366BC2", +" c None", +"u c #FDFEFF", +"8 c #5987D3", +"* c #C4D5F0", +"7 c #7CA0DC", +"O c #487BCE", +"< c #6B94D7", +"& c #CCDAF2", +"> c #89A9DF", +"3 c #5584D1", +"w c #82A5DE", +"1 c #3F74CB", +"+ c #3A70CA", +". c #3569BF", +"% c #D2DFF4", +"# c #3366BB", +"r c #F5F8FD", +"0 c #FAFCFE", +"4 c #DFE8F7", +"X c #5E8AD4", +"o c #5282D0", +"t c #B8CCEC", +"6 c #E5EDF9", /* 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. ", -" ......................... "}; +" ", +" ", +" ", +" ", +" ", +" .XXXooOO++@# ", +" $%&*=-;::>,<1 ", +" $2%&*=-;::><:3 ", +" $42%&*=-;::<&:3 ", +" 56477<<<<8<<9&:X ", +" 59642%&*=-;<09&:5 ", +" 5q9642%&*=-<<<<<# ", +" 5qqw777<<<<<88:>+ ", +" erqq9642%&*=t;::+ ", +" eyrqq9642%&*=t;:O ", +" eyywwww777<<<SetDragContext( (GdkDragContext*) NULL ); } +} // ---------------------------------------------------------------------------- // "drag_motion" // ---------------------------------------------------------------------------- +extern "C" { static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), GdkDragContext *context, gint x, @@ -147,11 +217,46 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), this is only valid for the duration of this call */ drop_target->SetDragContext( context ); + // GTK+ always supposes that we want to copy the data by default while we + // might want to move it, so examine not only suggested_action - which is + // only good if we don't have our own preferences - but also the actions + // field wxDragResult result; - if ( context->suggested_action == GDK_ACTION_COPY ) - result = wxDragCopy; - else + if (drop_target->GetDefaultAction() == wxDragNone) + { + // use default action set by wxDropSource::DoDragDrop() + if ( (gs_flagsForDrag & wxDrag_DefaultMove) == wxDrag_DefaultMove && + (context->actions & GDK_ACTION_MOVE ) ) + { + // move is requested by the program and allowed by GTK+ - do it, even + // though suggested_action may be currently wxDragCopy result = wxDragMove; + } + else // use whatever GTK+ says we should + { + result = ConvertFromGTK(context->suggested_action); + + if ( (result == wxDragMove) && !(gs_flagsForDrag & wxDrag_AllowMove) ) + { + // we're requested to move but we can't + result = wxDragCopy; + } + } + } + else if (drop_target->GetDefaultAction() == wxDragMove && + (context->actions & GDK_ACTION_MOVE)) + { + result = wxDragMove; + } + else + { + if (context->actions & GDK_ACTION_COPY) + result = wxDragCopy; + else if (context->actions & GDK_ACTION_MOVE) + result = wxDragMove; + else + result = wxDragNone; + } if (drop_target->m_firstMotion) { @@ -170,6 +275,8 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), GdkDragAction action; if (result == wxDragCopy) action = GDK_ACTION_COPY; + else if (result == wxDragLink) + action = GDK_ACTION_LINK; else action = GDK_ACTION_MOVE; @@ -184,11 +291,13 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), return ret; } +} // ---------------------------------------------------------------------------- // "drag_drop" // ---------------------------------------------------------------------------- +extern "C" { static gboolean target_drag_drop( GtkWidget *widget, GdkDragContext *context, gint x, @@ -226,11 +335,16 @@ static gboolean target_drag_drop( GtkWidget *widget, 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) { - wxLogDebug( wxT( "Drop target: OnDrop returned FALSE") ); + wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") ); /* cancel the whole thing */ gtk_drag_finish( context, @@ -240,15 +354,16 @@ static gboolean target_drag_drop( GtkWidget *widget, } else { - wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") ); + 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 ); + + // this does happen somehow, see bug 555111 + wxCHECK_MSG( format, FALSE, _T("no matching GdkAtom for format?") ) /* GdkDragAction action = GDK_ACTION_MOVE; @@ -263,7 +378,6 @@ static gboolean target_drag_drop( GtkWidget *widget, #if wxUSE_THREADS /* re-enable GUI threads */ - wxapp_install_thread_wakeup(); #endif } @@ -278,11 +392,13 @@ static gboolean target_drag_drop( GtkWidget *widget, return ret; } +} // ---------------------------------------------------------------------------- // "drag_data_received" // ---------------------------------------------------------------------------- +extern "C" { static void target_drag_data_received( GtkWidget *WXUNUSED(widget), GdkDragContext *context, gint x, @@ -306,36 +422,33 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget), return; } - wxLogDebug( wxT( "Drop target: data received event") ); + 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 ); - wxDragResult result; - if ( context->suggested_action == GDK_ACTION_COPY ) - result = wxDragCopy; - else - result = wxDragMove; + wxDragResult result = ConvertFromGTK(context->action); if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) ) { - wxLogDebug( wxT( "Drop target: OnData returned TRUE") ); + wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned TRUE") ); - /* tell GTK that data transfer was successfull */ + /* tell GTK that data transfer was successful */ gtk_drag_finish( context, TRUE, FALSE, time ); } else { - wxLogDebug( wxT( "Drop target: OnData returned FALSE") ); + wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") ); - /* tell GTK that data transfer was not successfull */ + /* tell GTK that data transfer was not successful */ gtk_drag_finish( context, FALSE, FALSE, time ); } /* after this, invalidate the drop_target's drag data */ drop_target->SetDragData( (GtkSelectionData*) NULL ); } +} //---------------------------------------------------------------------------- // wxDropTarget @@ -401,7 +514,8 @@ GdkAtom wxDropTarget::GetMatchingPair() wxDataFormat format( formatAtom ); #ifdef __WXDEBUG__ - wxLogDebug( wxT("Drop target: drag has format: %s"), format.GetId().c_str() ); + wxLogTrace(TRACE_DND, wxT("Drop target: drag has format: %s"), + format.GetId().c_str()); #endif // Debug if (m_dataObject->IsSupportedFormat( format )) @@ -487,6 +601,7 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget ) // "drag_data_get" //---------------------------------------------------------------------------- +extern "C" { static void source_drag_data_get (GtkWidget *WXUNUSED(widget), GdkDragContext *WXUNUSED(context), @@ -499,7 +614,8 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), wxDataFormat format( selection_data->target ); - wxLogDebug( wxT("Drop source: format requested: %s"), format.GetId().c_str() ); + wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"), + format.GetId().c_str()); drop_source->m_retValue = wxDragCancel; @@ -507,19 +623,19 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), if (!data) { - wxLogDebug( wxT("Drop source: no data object") ); + wxLogTrace(TRACE_DND, wxT("Drop source: no data object") ); return; } if (!data->IsSupportedFormat(format)) { - wxLogDebug( wxT("Drop source: unsupported format") ); + wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") ); return; } if (data->GetDataSize(format) == 0) { - wxLogDebug( wxT("Drop source: empty data") ); + wxLogTrace(TRACE_DND, wxT("Drop source: empty data") ); return; } @@ -537,7 +653,6 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), #if wxUSE_THREADS /* disable GUI threads */ - wxapp_uninstall_thread_wakeup(); #endif gtk_selection_data_set( selection_data, @@ -548,30 +663,33 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), #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 *WXUNUSED(drop_source) ) +extern "C" { +static void source_drag_data_delete( GtkWidget *WXUNUSED(widget), + GdkDragContext *context, + wxDropSource *WXUNUSED(drop_source) ) { if (g_isIdle) wxapp_install_idle_handler(); // printf( "Drag source: drag_data_delete\n" ); } +} //---------------------------------------------------------------------------- // "drag_begin" //---------------------------------------------------------------------------- +extern "C" { static void source_drag_begin( GtkWidget *WXUNUSED(widget), GdkDragContext *WXUNUSED(context), wxDropSource *WXUNUSED(drop_source) ) @@ -581,11 +699,13 @@ static void source_drag_begin( GtkWidget *WXUNUSED(widget), // printf( "Drag source: drag_begin.\n" ); } +} //---------------------------------------------------------------------------- // "drag_end" //---------------------------------------------------------------------------- +extern "C" { static void source_drag_end( GtkWidget *WXUNUSED(widget), GdkDragContext *WXUNUSED(context), wxDropSource *drop_source ) @@ -596,25 +716,24 @@ static void source_drag_end( GtkWidget *WXUNUSED(widget), drop_source->m_waiting = FALSE; } +} //----------------------------------------------------------------------------- // "configure_event" from m_iconWindow //----------------------------------------------------------------------------- +extern "C" { 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 ); + source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) ); return 0; } +} //--------------------------------------------------------------------------- // wxDropSource @@ -702,14 +821,18 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context ) 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); @@ -726,18 +849,17 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context ) gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 ); } -wxDragResult wxDropSource::DoDragDrop( bool allowMove ) +wxDragResult wxDropSource::DoDragDrop(int flags) { - wxASSERT_MSG( m_data, wxT("Drop source: no data") ); - - if (!m_data) - return (wxDragResult) wxDragNone; + wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone, + wxT("Drop source: no data") ); - if (m_data->GetFormatCount() == 0) - return (wxDragResult) wxDragNone; + // still in drag + if (g_blockEventsOnDrag) + return wxDragNone; // disabled for now - g_blockEventsOnDrag = FALSE; + g_blockEventsOnDrag = TRUE; RegisterWindow(); @@ -747,10 +869,11 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove ) wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ]; m_data->GetAllFormats( array ); - for (size_t i = 0; i < m_data->GetFormatCount(); i++) + size_t count = m_data->GetFormatCount(); + for (size_t i = 0; i < count; i++) { GdkAtom atom = array[i]; - wxLogDebug( wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ) ); + wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom )); gtk_target_list_add( target_list, atom, 0, 0 ); } delete[] array; @@ -774,17 +897,23 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove ) #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); + int action = GDK_ACTION_COPY; + if ( flags & wxDrag_AllowMove ) + action |= GDK_ACTION_MOVE; + + // VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad + // to use a global to pass the flags to the drop target but I'd + // surely prefer a better way to do it + gs_flagsForDrag = flags; + GdkDragContext *context = gtk_drag_begin( m_widget, target_list, - action, + (GdkDragAction)action, button_number, /* number of mouse button which started drag */ (GdkEvent*) &event ); @@ -792,17 +921,16 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove ) PrepareIcon( action, context ); - while (m_waiting) gtk_main_iteration(); + while (m_waiting) + gtk_main_iteration(); - if (context->action == GDK_ACTION_COPY) - m_retValue = wxDragCopy; - if (context->action == GDK_ACTION_MOVE) - m_retValue = wxDragMove; + m_retValue = ConvertFromGTK(context->action); + if ( m_retValue == wxDragNone ) + m_retValue = wxDragCancel; } #if wxUSE_THREADS /* re-enable GUI threads */ - wxapp_install_thread_wakeup(); #endif g_blockEventsOnDrag = FALSE;