implemented wxMBConv::IsUTF8() helper for more classes so that all uses of UTF-8...

[wxWidgets.git] / src / gtk / dnd.cpp

diff --git a/src/gtk/dnd.cpp b/src/gtk/dnd.cpp
index e9db01eda47c94c2878f03dbb331d1499b7cb153..c995a53350540539662f9447732e92b362aee5e8 100644 (file)
--- 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:          $Id$
 // Purpose:     wxDropTarget class
 // Author:      Robert Roebling
 // Id:          $Id$


@@ -7,110 +7,161 @@
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-    #pragma implementation "dnd.h"
-#endif
-
-#include "wx/dnd.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"

 
 #if wxUSE_DRAG_AND_DROP
 
 
 #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 <gtk/gtkdnd.h>
-#include <gtk/gtkselection.h>
-
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
-
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
-
-//-----------------------------------------------------------------------------
-// thread system
-//-----------------------------------------------------------------------------
+#include "wx/dnd.h"

 
 

-#if wxUSE_THREADS
-extern void wxapp_install_thread_wakeup();
-extern void wxapp_uninstall_thread_wakeup();
+#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
 
 #endif
 

+#include <gtk/gtk.h>
+

 //----------------------------------------------------------------------------
 // global data
 //----------------------------------------------------------------------------
 
 extern bool g_blockEventsOnDrag;
 
 //----------------------------------------------------------------------------
 // global data
 //----------------------------------------------------------------------------
 
 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
 //----------------------------------------------------------------------------
 
 //----------------------------------------------------------------------------
 // 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 */
 /* 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           ",
+"       $42%&*=-;::<&:3          ",
+"       56477<<<<8<<9&:X         ",
+"       59642%&*=-;<09&:5        ",
+"       5q9642%&*=-<<<<<#        ",
+"       5qqw777<<<<<88:>+        ",
+"       erqq9642%&*=t;::+        ",
+"       eyrqq9642%&*=t;:O        ",
+"       eyywwww777<<<<t;O        ",
+"       e0yyrqq9642%&*=to        ",
+"       e00yyrqq9642%&*=o        ",
+"       eu0wwwwwww777<&*X        ",
+"       euu00yyrqq9642%&X        ",
+"       eiuu00yyrqq9642%X        ",
+"       eiiwwwwwwwwww742$        ",
+"       eiiiuu00yyrqq964$        ",
+"       eiiiiuu00yyrqq96$        ",
+"       eiiiiiuu00yyrqq95        ",
+"       eiiiiiiuu00yyrqq5        ",
+"       eeeeeeeeeeeeee55e        ",
+"                                ",
+"                                ",
+"                                ",
+"                                ",
+"                                "
+};
+
+
+// ============================================================================
+// private functions
+// ============================================================================

 
 

+// ----------------------------------------------------------------------------
+// convert between GTK+ and wxWidgets DND constants
+// ----------------------------------------------------------------------------

 
 

+static wxDragResult ConvertFromGTK(long action)
+{
+    switch ( action )
+    {
+        case GDK_ACTION_COPY:
+            return wxDragCopy;
+
+        case GDK_ACTION_LINK:
+            return wxDragLink;
+
+        case GDK_ACTION_MOVE:
+            return wxDragMove;
+    }
+
+    return wxDragNone;
+}

 
 // ----------------------------------------------------------------------------
 // "drag_leave"
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // "drag_leave"
 // ----------------------------------------------------------------------------
 

+extern "C" {

 static void target_drag_leave( GtkWidget *WXUNUSED(widget),
                                GdkDragContext *context,
                                guint WXUNUSED(time),
                                wxDropTarget *drop_target )
 {
 static void target_drag_leave( GtkWidget *WXUNUSED(widget),
                                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 );
     /* inform the wxDropTarget about the current GdkDragContext.
        this is only valid for the duration of this call */
     drop_target->SetDragContext( context );


@@ -120,16 +171,18 @@ static void target_drag_leave( GtkWidget *WXUNUSED(widget),
     drop_target->OnLeave();
 
     /* this has to be done because GDK has no "drag_enter" event */
     drop_target->OnLeave();
 
     /* this has to be done because GDK has no "drag_enter" event */

-    drop_target->m_firstMotion = TRUE;
+    drop_target->m_firstMotion = true;

 
     /* after this, invalidate the drop_target's GdkDragContext */
     drop_target->SetDragContext( (GdkDragContext*) NULL );
 }
 
     /* after this, invalidate the drop_target's GdkDragContext */
     drop_target->SetDragContext( (GdkDragContext*) NULL );
 }

+}

 
 // ----------------------------------------------------------------------------
 // "drag_motion"
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // "drag_motion"
 // ----------------------------------------------------------------------------
 

+extern "C" {

 static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
                                     GdkDragContext *context,
                                     gint x,
 static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
                                     GdkDragContext *context,
                                     gint x,


@@ -137,8 +190,6 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
                                     guint time,
                                     wxDropTarget *drop_target )
 {
                                     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" */
     /* Owen Taylor: "if the coordinates not in a drop zone,
        return FALSE, otherwise call gtk_drag_status() and
        return TRUE" */


@@ -147,11 +198,46 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
        this is only valid for the duration of this call */
     drop_target->SetDragContext( context );
 
        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;
     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;
         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)
     {
 
     if (drop_target->m_firstMotion)
     {


@@ -170,6 +256,8 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
         GdkDragAction action;
         if (result == wxDragCopy)
             action = GDK_ACTION_COPY;
         GdkDragAction action;
         if (result == wxDragCopy)
             action = GDK_ACTION_COPY;

+        else if (result == wxDragLink)
+            action = GDK_ACTION_LINK;

         else
             action = GDK_ACTION_MOVE;
 
         else
             action = GDK_ACTION_MOVE;
 


@@ -180,15 +268,17 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
     drop_target->SetDragContext( (GdkDragContext*) NULL );
 
     /* this has to be done because GDK has no "drag_enter" event */
     drop_target->SetDragContext( (GdkDragContext*) NULL );
 
     /* this has to be done because GDK has no "drag_enter" event */

-    drop_target->m_firstMotion = FALSE;
+    drop_target->m_firstMotion = false;

 
     return ret;
 }
 
     return ret;
 }

+}

 
 // ----------------------------------------------------------------------------
 // "drag_drop"
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // "drag_drop"
 // ----------------------------------------------------------------------------
 

+extern "C" {

 static gboolean target_drag_drop( GtkWidget *widget,
                                   GdkDragContext *context,
                                   gint x,
 static gboolean target_drag_drop( GtkWidget *widget,
                                   GdkDragContext *context,
                                   gint x,


@@ -196,8 +286,6 @@ static gboolean target_drag_drop( GtkWidget *widget,
                                   guint time,
                                   wxDropTarget *drop_target )
 {
                                   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
     /* 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


@@ -229,13 +317,15 @@ static gboolean target_drag_drop( GtkWidget *widget,
     /* 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 */
     /* 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;
-    
+    g_blockEventsOnDrag = false;
+

     bool ret = drop_target->OnDrop( x, y );
 
     if (!ret)
     {
     bool ret = drop_target->OnDrop( x, y );
 
     if (!ret)
     {

-        wxLogDebug( wxT( "Drop target: OnDrop returned FALSE") );
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );
+#endif

 
         /* cancel the whole thing */
         gtk_drag_finish( context,
 
         /* cancel the whole thing */
         gtk_drag_finish( context,


@@ -245,15 +335,18 @@ static gboolean target_drag_drop( GtkWidget *widget,
     }
     else
     {
     }
     else
     {

-        wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned true") );
+#endif

 
 #if wxUSE_THREADS
         /* disable GUI threads */
 
 #if wxUSE_THREADS
         /* disable GUI threads */

-        wxapp_uninstall_thread_wakeup();

 #endif
 
         GdkAtom format = drop_target->GetMatchingPair();
 #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;
 
 /*
         GdkDragAction action = GDK_ACTION_MOVE;


@@ -268,7 +361,6 @@ static gboolean target_drag_drop( GtkWidget *widget,
 
 #if wxUSE_THREADS
         /* re-enable GUI threads */
 
 #if wxUSE_THREADS
         /* re-enable GUI threads */

-        wxapp_install_thread_wakeup();

 #endif
     }
 
 #endif
     }
 


@@ -279,15 +371,17 @@ static gboolean target_drag_drop( GtkWidget *widget,
     drop_target->SetDragWidget( (GtkWidget*) NULL );
 
     /* this has to be done because GDK has no "drag_enter" event */
     drop_target->SetDragWidget( (GtkWidget*) NULL );
 
     /* this has to be done because GDK has no "drag_enter" event */

-    drop_target->m_firstMotion = TRUE;
+    drop_target->m_firstMotion = true;

 
     return ret;
 }
 
     return ret;
 }

+}

 
 // ----------------------------------------------------------------------------
 // "drag_data_received"
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // "drag_data_received"
 // ----------------------------------------------------------------------------
 

+extern "C" {

 static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
                                        GdkDragContext *context,
                                        gint x,
 static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
                                        GdkDragContext *context,
                                        gint x,


@@ -297,8 +391,6 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
                                        guint time,
                                        wxDropTarget *drop_target )
 {
                                        guint time,
                                        wxDropTarget *drop_target )
 {

-    if (g_isIdle) wxapp_install_idle_handler();
-

     /* Owen Taylor: "call gtk_drag_finish() with
        success == TRUE" */
 
     /* Owen Taylor: "call gtk_drag_finish() with
        success == TRUE" */
 


@@ -311,36 +403,39 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
         return;
     }
 
         return;
     }
 

-    wxLogDebug( wxT( "Drop target: data received event") );
+#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 */
     drop_target->SetDragData( data );
 
 
     /* 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 ) ) )
     {
 
     if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
     {

-        wxLogDebug( wxT( "Drop target: OnData returned TRUE") );
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned true") );
+#endif

 
 

-        /* tell GTK that data transfer was successfull */
+        /* tell GTK that data transfer was successful */

         gtk_drag_finish( context, TRUE, FALSE, time );
     }
     else
     {
         gtk_drag_finish( context, TRUE, FALSE, time );
     }
     else
     {

-        wxLogDebug( wxT( "Drop target: OnData returned FALSE") );
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") );
+#endif

 
 

-        /* 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 );
 }
         gtk_drag_finish( context, FALSE, FALSE, time );
     }
 
     /* after this, invalidate the drop_target's drag data */
     drop_target->SetDragData( (GtkSelectionData*) NULL );
 }

+}

 
 //----------------------------------------------------------------------------
 // wxDropTarget
 
 //----------------------------------------------------------------------------
 // wxDropTarget


@@ -349,7 +444,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
 wxDropTarget::wxDropTarget( wxDataObject *data )
             : wxDropTargetBase( data )
 {
 wxDropTarget::wxDropTarget( wxDataObject *data )
             : wxDropTargetBase( data )
 {

-    m_firstMotion = TRUE;
+    m_firstMotion = true;

     m_dragContext = (GdkDragContext*) NULL;
     m_dragWidget = (GtkWidget*) NULL;
     m_dragData = (GtkSelectionData*) NULL;
     m_dragContext = (GdkDragContext*) NULL;
     m_dragWidget = (GtkWidget*) NULL;
     m_dragData = (GtkSelectionData*) NULL;


@@ -374,7 +469,7 @@ wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x),
 bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
 {
     if (!m_dataObject)
 bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
 {
     if (!m_dataObject)

-        return FALSE;
+        return false;

 
     return (GetMatchingPair() != (GdkAtom) 0);
 }
 
     return (GetMatchingPair() != (GdkAtom) 0);
 }


@@ -402,11 +497,12 @@ GdkAtom wxDropTarget::GetMatchingPair()
     GList *child = m_dragContext->targets;
     while (child)
     {
     GList *child = m_dragContext->targets;
     while (child)
     {

-        GdkAtom formatAtom = (GdkAtom) GPOINTER_TO_INT(child->data);
+        GdkAtom formatAtom = (GdkAtom)(child->data);

         wxDataFormat format( formatAtom );
 
 #ifdef __WXDEBUG__
         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 ))
 #endif // Debug
 
         if (m_dataObject->IsSupportedFormat( format ))


@@ -421,19 +517,19 @@ GdkAtom wxDropTarget::GetMatchingPair()
 bool wxDropTarget::GetData()
 {
     if (!m_dragData)
 bool wxDropTarget::GetData()
 {
     if (!m_dragData)

-        return FALSE;
+        return false;

 
     if (!m_dataObject)
 
     if (!m_dataObject)

-        return FALSE;
+        return false;

 
     wxDataFormat dragFormat( m_dragData->target );
 
     if (!m_dataObject->IsSupportedFormat( dragFormat ))
 
     wxDataFormat dragFormat( m_dragData->target );
 
     if (!m_dataObject->IsSupportedFormat( dragFormat ))

-        return FALSE;
+        return false;

 
     m_dataObject->SetData( dragFormat, (size_t)m_dragData->length, (const void*)m_dragData->data );
 
 
     m_dataObject->SetData( dragFormat, (size_t)m_dragData->length, (const void*)m_dragData->data );
 

-    return TRUE;
+    return true;

 }
 
 void wxDropTarget::UnregisterWidget( GtkWidget *widget )
 }
 
 void wxDropTarget::UnregisterWidget( GtkWidget *widget )


@@ -442,17 +538,14 @@ void wxDropTarget::UnregisterWidget( GtkWidget *widget )
 
     gtk_drag_dest_unset( 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 )
 }
 
 void wxDropTarget::RegisterWidget( GtkWidget *widget )


@@ -475,23 +568,24 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget )
                        0,                           /* number of targets = 0 */
                        (GdkDragAction) 0 );         /* we don't supply any actions 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 );
+    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);

 }
 
 //----------------------------------------------------------------------------
 // "drag_data_get"
 //----------------------------------------------------------------------------
 
 }
 
 //----------------------------------------------------------------------------
 // "drag_data_get"
 //----------------------------------------------------------------------------
 

+extern "C" {

 static void
 source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
                        GdkDragContext     *WXUNUSED(context),
 static void
 source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
                        GdkDragContext     *WXUNUSED(context),


@@ -500,11 +594,12 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
                        guint               WXUNUSED(time),
                        wxDropSource       *drop_source )
 {
                        guint               WXUNUSED(time),
                        wxDropSource       *drop_source )
 {

-    if (g_isIdle) wxapp_install_idle_handler();
-

     wxDataFormat format( selection_data->target );
 
     wxDataFormat format( selection_data->target );
 

-    wxLogDebug( wxT("Drop source: format requested: %s"), format.GetId().c_str() );
+#ifdef __WXDEBUG__
+    wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"),
+               format.GetId().c_str());
+#endif

 
     drop_source->m_retValue = wxDragCancel;
 
 
     drop_source->m_retValue = wxDragCancel;
 


@@ -512,20 +607,26 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
     if (!data)
     {
 
     if (!data)
     {

-        wxLogDebug( wxT("Drop source: no data object") );
-        return;
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT("Drop source: no data object") );
+#endif
+       return;

     }
 
     if (!data->IsSupportedFormat(format))
     {
     }
 
     if (!data->IsSupportedFormat(format))
     {

-        wxLogDebug( wxT("Drop source: unsupported format") );
-        return;
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") );
+#endif
+       return;

     }
 
     if (data->GetDataSize(format) == 0)
     {
     }
 
     if (data->GetDataSize(format) == 0)
     {

-        wxLogDebug( wxT("Drop source: empty data") );
-        return;
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT("Drop source: empty data") );
+#endif
+       return;

     }
 
     size_t size = data->GetDataSize(format);
     }
 
     size_t size = data->GetDataSize(format);


@@ -542,84 +643,50 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 #if wxUSE_THREADS
     /* disable GUI threads */
 
 #if wxUSE_THREADS
     /* disable GUI threads */

-    wxapp_uninstall_thread_wakeup();

 #endif
 
 #endif
 

-                gtk_selection_data_set( selection_data,
-                                        selection_data->target,
-                                        8,   // 8-bit
-                                        d,
-                                        size );
+    gtk_selection_data_set( selection_data,
+                            selection_data->target,
+                            8,   // 8-bit
+                            d,
+                            size );

 
 #if wxUSE_THREADS
     /* enable GUI threads */
 
 #if wxUSE_THREADS
     /* enable GUI threads */

-    wxapp_install_thread_wakeup();

 #endif
 
     delete[] d;
 }
 #endif
 
     delete[] d;
 }

-
-//----------------------------------------------------------------------------
-// "drag_data_delete"
-//----------------------------------------------------------------------------
-
-static void source_drag_data_delete( GtkWidget          *WXUNUSED(widget),
-                                     GdkDragContext     *WXUNUSED(context),
-                                     wxDropSource       *WXUNUSED(drop_source) )
-{
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
-    // printf( "Drag source: drag_data_delete\n" );
-}
-
-//----------------------------------------------------------------------------
-// "drag_begin"
-//----------------------------------------------------------------------------
-
-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"
 //----------------------------------------------------------------------------
 
 }
 
 //----------------------------------------------------------------------------
 // "drag_end"
 //----------------------------------------------------------------------------
 

+extern "C" {

 static void source_drag_end( GtkWidget          *WXUNUSED(widget),
                              GdkDragContext     *WXUNUSED(context),
                              wxDropSource       *drop_source )
 {
 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" );
 
     // printf( "Drag source: drag_end.\n" );
 

-    drop_source->m_waiting = FALSE;
+    drop_source->m_waiting = false;
+}

 }
 
 //-----------------------------------------------------------------------------
 // "configure_event" from m_iconWindow
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 // "configure_event" from m_iconWindow
 //-----------------------------------------------------------------------------
 

+extern "C" {

 static gint
 gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source )
 {
 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;
 }
 
     return 0;
 }

+}

 
 //---------------------------------------------------------------------------
 // wxDropSource
 
 //---------------------------------------------------------------------------
 // wxDropSource


@@ -630,7 +697,7 @@ wxDropSource::wxDropSource(wxWindow *win,
                            const wxIcon &iconMove,
                            const wxIcon &iconNone)
 {
                            const wxIcon &iconMove,
                            const wxIcon &iconNone)
 {

-    m_waiting = TRUE;
+    m_waiting = true;

 
     m_iconWindow = (GtkWidget*) NULL;
 
 
     m_iconWindow = (GtkWidget*) NULL;
 


@@ -649,7 +716,7 @@ wxDropSource::wxDropSource(wxDataObject& data,
                            const wxIcon &iconMove,
                            const wxIcon &iconNone)
 {
                            const wxIcon &iconMove,
                            const wxIcon &iconNone)
 {

-    m_waiting = TRUE;
+    m_waiting = true;

 
     SetData( data );
 
 
     SetData( data );
 


@@ -704,28 +771,22 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
     GdkPixmap *pixmap = icon->GetPixmap();
 
     gint width,height;
     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 );
 
     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_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);

 
 

-#ifndef __WXGTK20__
-    gtk_widget_pop_visual ();
-#endif

     gtk_widget_pop_colormap ();
 
     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_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);
 
 
     gdk_window_set_back_pixmap (m_iconWindow->window, pixmap, FALSE);
 


@@ -735,90 +796,72 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
     gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 );
 }
 
     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;
-
-    if (m_data->GetFormatCount() == 0)
-        return (wxDragResult) wxDragNone;
+    wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone,
+                 wxT("Drop source: no data") );

 
     // still in drag
     if (g_blockEventsOnDrag)
 
     // still in drag
     if (g_blockEventsOnDrag)

-        return (wxDragResult) wxDragNone;
-    
+        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
     // disabled for now

-    g_blockEventsOnDrag = TRUE;
+    g_blockEventsOnDrag = true;

 
     RegisterWindow();
 
 
     RegisterWindow();
 

-    m_waiting = TRUE;
+    m_waiting = true;

 
     GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 );
 
     wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
     m_data->GetAllFormats( array );
 
     GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 );
 
     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];
     {
         GdkAtom atom = array[i];

-        wxLogDebug( wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ) );
-        gtk_target_list_add( target_list, atom, 0, 0 );
+#ifdef __WXDEBUG__
+        wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
+#endif
+       gtk_target_list_add( target_list, atom, 0, 0 );

     }
     delete[] array;
 
     }
     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 */
-    wxapp_uninstall_thread_wakeup();
-#endif
+    // 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;

 
 

-    /* 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,
+    GdkDragContext *context = gtk_drag_begin( m_widget,

                 target_list,
                 target_list,

-                action,
-                button_number,  /* number of mouse button which started drag */
-                (GdkEvent*) &event );
+                (GdkDragAction)action,
+                g_lastButtonNumber,  // number of mouse button which started drag
+                (GdkEvent*) g_lastMouseEvent );

 
 

-        m_dragContext = context;
+    m_dragContext = context;

 
 

-        PrepareIcon( action, context );
+    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;
+    g_blockEventsOnDrag = false;

 
     UnregisterWindow();
 
 
     UnregisterWindow();
 


@@ -829,29 +872,24 @@ void wxDropSource::RegisterWindow()
 {
     if (!m_widget) return;
 
 {
     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()
 {
 
 }
 
 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
 }
 
 #endif