#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 "wx/window.h"
-#include "wx/app.h"
-#include "wx/gdicmn.h"
-#include "wx/utils.h"
-
#include "wx/gtk/private.h"
#include <gdk/gdkprivate.h>
// 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
if (!ret)
{
+#ifdef __WXDEBUG__
wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );
+#endif
/* cancel the whole thing */
gtk_drag_finish( context,
}
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 */
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 */
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 );
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;
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);
extern "C" {
static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
+ GdkDragContext *WXUNUSED(context),
wxDropSource *WXUNUSED(drop_source) )
{
if (g_isIdle)
static gint
gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source )
{
- if (g_isIdle)
- wxapp_install_idle_handler();
+ // don't need to install idle handler, its done from "event" signal
source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) );
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;
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;
projects / wxWidgets.git / blobdiff