X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3cbab64109b007fa1d939fe588f5e79f9105b915..3225a4b8b8656f25dac6cb20684a3c2c273cf796:/src/gtk1/dnd.cpp?ds=sidebyside

diff --git a/src/gtk1/dnd.cpp b/src/gtk1/dnd.cpp
index 3c4ce2dc54..42b4bc790b 100644
--- a/src/gtk1/dnd.cpp
+++ b/src/gtk1/dnd.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        dnd.cpp
+// Name:        src/gtk1/dnd.cpp
 // Purpose:     wxDropTarget class
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -10,17 +10,18 @@
 // 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/dnd.h"
+
+#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/gtk1/private.h"
 
@@ -36,13 +37,6 @@
 extern void wxapp_install_idle_handler();
 extern bool g_isIdle;
 
-//-----------------------------------------------------------------------------
-// thread system
-//-----------------------------------------------------------------------------
-
-#if wxUSE_THREADS
-#endif
-
 //----------------------------------------------------------------------------
 // global data
 //----------------------------------------------------------------------------
@@ -55,7 +49,12 @@ 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");
+#define TRACE_DND wxT("dnd")
+
+// global variables because GTK+ DnD want to have the
+// mouse event that caused it
+extern GdkEvent *g_lastMouseEvent;
+extern int g_lastButtonNumber;
 
 //----------------------------------------------------------------------------
 // standard icons
@@ -187,7 +186,7 @@ static void target_drag_leave( GtkWidget *WXUNUSED(widget),
     drop_target->m_firstMotion = true;
 
     /* after this, invalidate the drop_target's GdkDragContext */
-    drop_target->SetDragContext( (GdkDragContext*) NULL );
+    drop_target->SetDragContext( NULL );
 }
 }
 
@@ -280,7 +279,7 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
     }
 
     /* after this, invalidate the drop_target's GdkDragContext */
-    drop_target->SetDragContext( (GdkDragContext*) NULL );
+    drop_target->SetDragContext( NULL );
 
     /* this has to be done because GDK has no "drag_enter" event */
     drop_target->m_firstMotion = false;
@@ -359,7 +358,7 @@ 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, wxT("no matching GdkAtom for format?") );
 
 /*
         GdkDragAction action = GDK_ACTION_MOVE;
@@ -378,10 +377,10 @@ static gboolean target_drag_drop( GtkWidget *widget,
     }
 
     /* after this, invalidate the drop_target's GdkDragContext */
-    drop_target->SetDragContext( (GdkDragContext*) NULL );
+    drop_target->SetDragContext( NULL );
 
     /* after this, invalidate the drop_target's drag widget */
-    drop_target->SetDragWidget( (GtkWidget*) NULL );
+    drop_target->SetDragWidget( NULL );
 
     /* this has to be done because GDK has no "drag_enter" event */
     drop_target->m_firstMotion = true;
@@ -442,7 +441,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
     }
 
     /* after this, invalidate the drop_target's drag data */
-    drop_target->SetDragData( (GtkSelectionData*) NULL );
+    drop_target->SetDragData( NULL );
 }
 }
 
@@ -454,9 +453,9 @@ wxDropTarget::wxDropTarget( wxDataObject *data )
             : wxDropTargetBase( data )
 {
     m_firstMotion = true;
-    m_dragContext = (GdkDragContext*) NULL;
-    m_dragWidget = (GtkWidget*) NULL;
-    m_dragData = (GtkSelectionData*) NULL;
+    m_dragContext = NULL;
+    m_dragWidget = NULL;
+    m_dragData = NULL;
     m_dragTime = 0;
 }
 
@@ -466,13 +465,8 @@ wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x),
 {
     // GetMatchingPair() checks for m_dataObject too, no need to do it here
 
-    // disable the debug message from GetMatchingPair() - there are too many
-    // of them otherwise
-#ifdef __WXDEBUG__
-    wxLogNull noLog;
-#endif // Debug
-
-    return (GetMatchingPair() != (GdkAtom) 0) ? def : wxDragNone;
+    // disable the debug message from GetMatchingPair() by passing true to it
+    return (GetMatchingPair(true) != (GdkAtom) 0) ? def : wxDragNone;
 }
 
 bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
@@ -495,7 +489,7 @@ wxDragResult wxDropTarget::OnData( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
     return GetData() ? def : wxDragNone;
 }
 
-GdkAtom wxDropTarget::GetMatchingPair()
+GdkAtom wxDropTarget::GetMatchingPair(bool quiet)
 {
     if (!m_dataObject)
         return (GdkAtom) 0;
@@ -509,10 +503,11 @@ GdkAtom wxDropTarget::GetMatchingPair()
         GdkAtom formatAtom = GPOINTER_TO_INT(child->data);
         wxDataFormat format( formatAtom );
 
-#ifdef __WXDEBUG__
-        wxLogTrace(TRACE_DND, wxT("Drop target: drag has format: %s"),
-                   format.GetId().c_str());
-#endif // Debug
+        if ( !quiet )
+        {
+            wxLogTrace(TRACE_DND, wxT("Drop target: drag has format: %s"),
+                       format.GetId().c_str());
+        }
 
         if (m_dataObject->IsSupportedFormat( format ))
             return formatAtom;
@@ -576,7 +571,7 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget )
 
     gtk_drag_dest_set( widget,
                        (GtkDestDefaults) 0,         /* no default behaviour */
-                       (GtkTargetEntry*) NULL,      /* we don't supply any formats here */
+                       NULL,      /* we don't supply any formats here */
                        0,                           /* number of targets = 0 */
                        (GdkDragAction) 0 );         /* we don't supply any actions here */
 
@@ -671,7 +666,7 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 extern "C" {
 static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
-                                     GdkDragContext *context,
+                                     GdkDragContext *WXUNUSED(context),
                                      wxDropSource *WXUNUSED(drop_source) )
 {
     if (g_isIdle)
@@ -742,7 +737,7 @@ wxDropSource::wxDropSource(wxWindow *win,
 {
     m_waiting = true;
 
-    m_iconWindow = (GtkWidget*) NULL;
+    m_iconWindow = NULL;
 
     m_window = win;
     m_widget = win->m_widget;
@@ -763,7 +758,7 @@ wxDropSource::wxDropSource(wxDataObject& data,
 
     SetData( data );
 
-    m_iconWindow = (GtkWidget*) NULL;
+    m_iconWindow = NULL;
 
     m_window = win;
     m_widget = win->m_widget;
@@ -782,11 +777,11 @@ void wxDropSource::SetIcons(const wxIcon &iconCopy,
     m_iconMove = iconMove;
     m_iconNone = iconNone;
 
-    if ( !m_iconCopy.Ok() )
+    if ( !m_iconCopy.IsOk() )
         m_iconCopy = wxIcon(page_xpm);
-    if ( !m_iconMove.Ok() )
+    if ( !m_iconMove.IsOk() )
         m_iconMove = m_iconCopy;
-    if ( !m_iconNone.Ok() )
+    if ( !m_iconNone.IsOk() )
         m_iconNone = m_iconCopy;
 }
 
@@ -809,7 +804,7 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
     if ( icon->GetMask() )
         mask = icon->GetMask()->GetBitmap();
     else
-        mask = (GdkBitmap *)NULL;
+        mask = NULL;
 
     GdkPixmap *pixmap = icon->GetPixmap();
 
@@ -850,6 +845,14 @@ 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;
 
@@ -857,7 +860,7 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
 
     m_waiting = true;
 
-    GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 );
+    GtkTargetList *target_list = gtk_target_list_new( NULL, 0 );
 
     wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
     m_data->GetAllFormats( array );
@@ -870,30 +873,6 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
     }
     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;
-
-#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;
@@ -906,8 +885,8 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
         GdkDragContext *context = gtk_drag_begin( m_widget,
                 target_list,
                 (GdkDragAction)action,
-                button_number,  /* number of mouse button which started drag */
-                (GdkEvent*) &event );
+                g_lastButtonNumber,  // number of mouse button which started drag
+                (GdkEvent*) g_lastMouseEvent );
 
         m_dragContext = context;
 
@@ -919,11 +898,6 @@ wxDragResult wxDropSource::DoDragDrop(int flags)
         m_retValue = ConvertFromGTK(context->action);
         if ( m_retValue == wxDragNone )
             m_retValue = wxDragCancel;
-    }
-
-#if wxUSE_THREADS
-    /* re-enable GUI threads */
-#endif
 
     g_blockEventsOnDrag = false;