X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/68567a967bc8afd37a40cb9a7ee5021b9ee6cd96..93de378435d2b8fcdd6bd5f819fe6a3308e86921:/src/gtk/dnd.cpp diff --git a/src/gtk/dnd.cpp b/src/gtk/dnd.cpp index ba5dbeeec6..c995a53350 100644 --- a/src/gtk/dnd.cpp +++ b/src/gtk/dnd.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: dnd.cpp +// Name: src/gtk/dnd.cpp // Purpose: wxDropTarget class // Author: Robert Roebling // Id: $Id$ @@ -10,39 +10,21 @@ // 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" -#include "wx/app.h" -#include "wx/gdicmn.h" -#include "wx/intl.h" -#include "wx/utils.h" - -#include "wx/gtk/private.h" - -#include - -#include -#include - -//----------------------------------------------------------------------------- -// idle system -//----------------------------------------------------------------------------- - -extern void wxapp_install_idle_handler(); -extern bool g_isIdle; - -//----------------------------------------------------------------------------- -// thread system -//----------------------------------------------------------------------------- +#include "wx/dnd.h" -#if wxUSE_THREADS +#ifndef WX_PRECOMP + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/app.h" + #include "wx/utils.h" + #include "wx/window.h" + #include "wx/gdicmn.h" #endif +#include + //---------------------------------------------------------------------------- // global data //---------------------------------------------------------------------------- @@ -52,10 +34,17 @@ extern bool g_blockEventsOnDrag; // the flags used for the last DoDragDrop() static long gs_flagsForDrag = 0; +#ifdef __WXDEBUG__ // 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"); +#endif + +// global variables because GTK+ DnD want to have the +// mouse event that caused it +extern GdkEvent *g_lastMouseEvent; +extern int g_lastButtonNumber; //---------------------------------------------------------------------------- // standard icons @@ -173,8 +162,6 @@ static void target_drag_leave( GtkWidget *WXUNUSED(widget), 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 ); @@ -203,8 +190,6 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget), 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" */ @@ -301,8 +286,6 @@ static gboolean target_drag_drop( GtkWidget *widget, 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 @@ -340,7 +323,9 @@ static gboolean target_drag_drop( GtkWidget *widget, if (!ret) { +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") ); +#endif /* cancel the whole thing */ gtk_drag_finish( context, @@ -350,7 +335,9 @@ static gboolean target_drag_drop( GtkWidget *widget, } else { - wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned TRUE") ); +#ifdef __WXDEBUG__ + wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned true") ); +#endif #if wxUSE_THREADS /* disable GUI threads */ @@ -359,7 +346,7 @@ static gboolean target_drag_drop( GtkWidget *widget, GdkAtom format = drop_target->GetMatchingPair(); // this does happen somehow, see bug 555111 - wxCHECK_MSG( format, FALSE, _T("no matching GdkAtom for format?") ) + wxCHECK_MSG( format, FALSE, _T("no matching GdkAtom for format?") ); /* GdkDragAction action = GDK_ACTION_MOVE; @@ -404,8 +391,6 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget), guint time, wxDropTarget *drop_target ) { - if (g_isIdle) wxapp_install_idle_handler(); - /* Owen Taylor: "call gtk_drag_finish() with success == TRUE" */ @@ -418,7 +403,9 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget), return; } +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT( "Drop target: data received event") ); +#endif /* inform the wxDropTarget about the current GtkSelectionData. this is only valid for the duration of this call */ @@ -428,14 +415,18 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget), if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) ) { - wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned TRUE") ); +#ifdef __WXDEBUG__ + wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned true") ); +#endif /* tell GTK that data transfer was successful */ gtk_drag_finish( context, TRUE, FALSE, time ); } else { +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") ); +#endif /* tell GTK that data transfer was not successful */ gtk_drag_finish( context, FALSE, FALSE, time ); @@ -547,17 +538,14 @@ void wxDropTarget::UnregisterWidget( GtkWidget *widget ) gtk_drag_dest_unset( widget ); - 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 ); + g_signal_handlers_disconnect_by_func (widget, + (gpointer) target_drag_leave, this); + g_signal_handlers_disconnect_by_func (widget, + (gpointer) target_drag_motion, this); + g_signal_handlers_disconnect_by_func (widget, + (gpointer) target_drag_drop, this); + g_signal_handlers_disconnect_by_func (widget, + (gpointer) target_drag_data_received, this); } void wxDropTarget::RegisterWidget( GtkWidget *widget ) @@ -580,17 +568,17 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget ) 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 ); + g_signal_connect (widget, "drag_leave", + G_CALLBACK (target_drag_leave), this); - gtk_signal_connect( GTK_OBJECT(widget), "drag_motion", - GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this ); + g_signal_connect (widget, "drag_motion", + G_CALLBACK (target_drag_motion), this); - gtk_signal_connect( GTK_OBJECT(widget), "drag_drop", - GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this ); + g_signal_connect (widget, "drag_drop", + G_CALLBACK (target_drag_drop), this); - gtk_signal_connect( GTK_OBJECT(widget), "drag_data_received", - GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this ); + g_signal_connect (widget, "drag_data_received", + G_CALLBACK (target_drag_data_received), this); } //---------------------------------------------------------------------------- @@ -606,12 +594,12 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), guint WXUNUSED(time), wxDropSource *drop_source ) { - if (g_isIdle) wxapp_install_idle_handler(); - wxDataFormat format( selection_data->target ); +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"), format.GetId().c_str()); +#endif drop_source->m_retValue = wxDragCancel; @@ -619,20 +607,26 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), if (!data) { +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT("Drop source: no data object") ); - return; +#endif + return; } if (!data->IsSupportedFormat(format)) { +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") ); - return; +#endif + return; } if (data->GetDataSize(format) == 0) { +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT("Drop source: empty data") ); - return; +#endif + return; } size_t size = data->GetDataSize(format); @@ -665,38 +659,6 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget), } } -//---------------------------------------------------------------------------- -// "drag_data_delete" -//---------------------------------------------------------------------------- - -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) ) -{ - if (g_isIdle) - wxapp_install_idle_handler(); - - // printf( "Drag source: drag_begin.\n" ); -} -} - //---------------------------------------------------------------------------- // "drag_end" //---------------------------------------------------------------------------- @@ -706,8 +668,6 @@ static void source_drag_end( GtkWidget *WXUNUSED(widget), GdkDragContext *WXUNUSED(context), wxDropSource *drop_source ) { - if (g_isIdle) wxapp_install_idle_handler(); - // printf( "Drag source: drag_end.\n" ); drop_source->m_waiting = false; @@ -722,9 +682,6 @@ extern "C" { static gint gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source ) { - if (g_isIdle) - wxapp_install_idle_handler(); - source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) ); return 0; @@ -814,22 +771,22 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context ) GdkPixmap *pixmap = icon->GetPixmap(); gint width,height; - gdk_window_get_size (pixmap, &width, &height); + gdk_drawable_get_size (pixmap, &width, &height); GdkColormap *colormap = gtk_widget_get_colormap( m_widget ); 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); + gtk_widget_set_app_paintable (m_iconWindow, TRUE); gtk_widget_pop_colormap (); - gtk_widget_set_usize (m_iconWindow, width, height); + gtk_widget_set_size_request (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 ); + g_signal_connect (m_iconWindow, "configure_event", + G_CALLBACK (gtk_dnd_window_configure_callback), this); gdk_window_set_back_pixmap (m_iconWindow->window, pixmap, FALSE); @@ -848,6 +805,14 @@ wxDragResult wxDropSource::DoDragDrop(int flags) if (g_blockEventsOnDrag) return wxDragNone; + // don't start dragging if no button is down + if (g_lastButtonNumber == 0) + return wxDragNone; + + // we can only start a drag after a mouse event + if (g_lastMouseEvent == NULL) + return wxDragNone; + // disabled for now g_blockEventsOnDrag = true; @@ -863,65 +828,38 @@ wxDragResult wxDropSource::DoDragDrop(int flags) for (size_t i = 0; i < count; i++) { GdkAtom atom = array[i]; +#ifdef __WXDEBUG__ wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom )); - gtk_target_list_add( target_list, atom, 0, 0 ); +#endif + gtk_target_list_add( target_list, atom, 0, 0 ); } delete[] array; - GdkEventMotion event; - event.window = m_widget->window; - int x = 0; - int y = 0; - GdkModifierType state; - gdk_window_get_pointer( event.window, &x, &y, &state ); - 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; + int action = GDK_ACTION_COPY; + if ( flags & wxDrag_AllowMove ) + action |= GDK_ACTION_MOVE; -#if wxUSE_THREADS - /* disable GUI threads */ -#endif - - /* don't start dragging if no button is down */ - if (button_number) - { - 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; - // 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, + GdkDragContext *context = gtk_drag_begin( m_widget, target_list, (GdkDragAction)action, - button_number, /* number of mouse button which started drag */ - (GdkEvent*) &event ); - - m_dragContext = context; + g_lastButtonNumber, // number of mouse button which started drag + (GdkEvent*) g_lastMouseEvent ); - PrepareIcon( action, context ); + m_dragContext = context; - while (m_waiting) - gtk_main_iteration(); + PrepareIcon( action, context ); - m_retValue = ConvertFromGTK(context->action); - if ( m_retValue == wxDragNone ) - m_retValue = wxDragCancel; - } + while (m_waiting) + gtk_main_iteration(); -#if wxUSE_THREADS - /* re-enable GUI threads */ -#endif + m_retValue = ConvertFromGTK(context->action); + if ( m_retValue == wxDragNone ) + m_retValue = wxDragCancel; g_blockEventsOnDrag = false; @@ -934,29 +872,24 @@ 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_connect (GTK_OBJECT(m_widget), "drag_data_delete", - 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_connect (GTK_OBJECT(m_widget), "drag_end", - GTK_SIGNAL_FUNC (source_drag_end), (gpointer) this ); + g_signal_connect (m_widget, "drag_data_get", + G_CALLBACK (source_drag_data_get), this); + g_signal_connect (m_widget, "drag_end", + G_CALLBACK (source_drag_end), this); } void wxDropSource::UnregisterWindow() { - if (!m_widget) return; + if (!m_widget) + return; - gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), - 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_disconnect_by_func( GTK_OBJECT(m_widget), - 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 ); + g_signal_handlers_disconnect_by_func (m_widget, + (gpointer) source_drag_data_get, + this); + g_signal_handlers_disconnect_by_func (m_widget, + (gpointer) source_drag_end, + this); } #endif