Added clipboard cut and paste

[wxWidgets.git] / src / gtk1 / dnd.cpp

diff --git a/src/gtk1/dnd.cpp b/src/gtk1/dnd.cpp
index 6ab59511ca48ae2371c2452ccb480619f6526115..5d4111c304504f143a1528ded43805aa478e8d3d 100644 (file)
--- a/src/gtk1/dnd.cpp
+++ b/src/gtk1/dnd.cpp
@@ -8,7 +8,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__

-#pragma implementation "dnd.h"
+    #pragma implementation "dnd.h"

 #endif
 
 #include "wx/dnd.h"
 #endif
 
 #include "wx/dnd.h"


@@ -21,12 +21,12 @@
 #include "wx/intl.h"
 #include "wx/utils.h"
 
 #include "wx/intl.h"
 #include "wx/utils.h"
 

-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
-#include "gdk/gdkprivate.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkprivate.h>

 
 

-#include "gtk/gtkdnd.h"
-#include "gtk/gtkselection.h"
+#include <gtk/gtkdnd.h>
+#include <gtk/gtkselection.h>

 
 //-----------------------------------------------------------------------------
 // idle system
 
 //-----------------------------------------------------------------------------
 // idle system


@@ -50,6 +50,11 @@ extern void wxapp_uninstall_thread_wakeup();
 
 extern bool g_blockEventsOnDrag;
 
 
 extern bool g_blockEventsOnDrag;
 

+// 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
 //----------------------------------------------------------------------------
 //----------------------------------------------------------------------------
 // standard icons
 //----------------------------------------------------------------------------


@@ -150,6 +155,8 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
     wxDragResult result;
     if ( context->suggested_action == GDK_ACTION_COPY )
         result = wxDragCopy;
     wxDragResult result;
     if ( context->suggested_action == GDK_ACTION_COPY )
         result = wxDragCopy;

+    else if ( context->suggested_action == GDK_ACTION_LINK )
+        result = wxDragLink;

     else
         result = wxDragMove;
 
     else
         result = wxDragMove;
 


@@ -170,6 +177,8 @@ 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;
 


@@ -226,11 +235,16 @@ static gboolean target_drag_drop( GtkWidget *widget,
     if (context->suggested_action == GDK_ACTION_COPY) result = wxDragCopy;
 */
 
     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)
     {
     bool ret = drop_target->OnDrop( x, y );
 
     if (!ret)
     {

-        wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );

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


@@ -240,7 +254,7 @@ static gboolean target_drag_drop( GtkWidget *widget,
     }
     else
     {
     }
     else
     {

-        wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
+        wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned TRUE") );

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


@@ -306,7 +320,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
         return;
     }
 
         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 */
 
     /* inform the wxDropTarget about the current GtkSelectionData.
        this is only valid for the duration of this call */


@@ -315,19 +329,21 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
     wxDragResult result;
     if ( context->suggested_action == GDK_ACTION_COPY )
         result = wxDragCopy;
     wxDragResult result;
     if ( context->suggested_action == GDK_ACTION_COPY )
         result = wxDragCopy;

+    else if ( context->suggested_action == GDK_ACTION_LINK )
+        result = wxDragLink;

     else
         result = wxDragMove;
 
     if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
     {
     else
         result = wxDragMove;
 
     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 */
         gtk_drag_finish( context, TRUE, FALSE, time );
     }
     else
     {
 
         /* tell GTK that data transfer was successfull */
         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 */
         gtk_drag_finish( context, FALSE, FALSE, time );
 
         /* tell GTK that data transfer was not successfull */
         gtk_drag_finish( context, FALSE, FALSE, time );


@@ -378,10 +394,10 @@ wxDragResult wxDropTarget::OnData( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
                                    wxDragResult def )
 {
     if (!m_dataObject)
                                    wxDragResult def )
 {
     if (!m_dataObject)

-        return FALSE;
+        return wxDragNone;

 
     if (GetMatchingPair() == (GdkAtom) 0)
 
     if (GetMatchingPair() == (GdkAtom) 0)

-        return FALSE;
+        return wxDragNone;

 
     return GetData() ? def : wxDragNone;
 }
 
     return GetData() ? def : wxDragNone;
 }


@@ -401,8 +417,8 @@ GdkAtom wxDropTarget::GetMatchingPair()
         wxDataFormat format( formatAtom );
 
 #ifdef __WXDEBUG__
         wxDataFormat format( formatAtom );
 
 #ifdef __WXDEBUG__

-        char *name = gdk_atom_name( formatAtom );
-        wxLogDebug("Drop target: drag has format: %s", name ? name : "unnamed");
+        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 ))


@@ -427,20 +443,6 @@ bool wxDropTarget::GetData()
     if (!m_dataObject->IsSupportedFormat( dragFormat ))
         return FALSE;
 
     if (!m_dataObject->IsSupportedFormat( dragFormat ))
         return FALSE;
 

-    if (dragFormat.GetType() == wxDF_TEXT)
-    {
-        wxTextDataObject *text_object = (wxTextDataObject*)m_dataObject;
-        text_object->SetText( (const char*)m_dragData->data );
-        return TRUE;
-    }
-
-    if (dragFormat.GetType() == wxDF_FILENAME)
-    {
-        wxFileDataObject *file_object = (wxFileDataObject*)m_dataObject;
-        file_object->SetData( 0, (const char*)m_dragData->data );
-        return TRUE;
-    }
-

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


@@ -504,7 +506,7 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget )
 
 static void
 source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 static void
 source_drag_data_get  (GtkWidget          *WXUNUSED(widget),

-                       GdkDragContext     *context,
+                       GdkDragContext     *WXUNUSED(context),

                        GtkSelectionData   *selection_data,
                        guint               WXUNUSED(info),
                        guint               WXUNUSED(time),
                        GtkSelectionData   *selection_data,
                        guint               WXUNUSED(info),
                        guint               WXUNUSED(time),


@@ -514,7 +516,8 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
     wxDataFormat format( selection_data->target );
 
 
     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;
 
 
     drop_source->m_retValue = wxDragCancel;
 


@@ -522,19 +525,19 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
     if (!data)
     {
 
     if (!data)
     {

-        wxLogDebug( wxT("Drop source: no data object") );
+        wxLogTrace(TRACE_DND, wxT("Drop source: no data object") );

         return;
     }
 
     if (!data->IsSupportedFormat(format))
     {
         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)
     {
         return;
     }
 
     if (data->GetDataSize(format) == 0)
     {

-        wxLogDebug( wxT("Drop source: empty data") );
+        wxLogTrace(TRACE_DND, wxT("Drop source: empty data") );

         return;
     }
 
         return;
     }
 


@@ -567,24 +570,20 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 #endif
 
     delete[] d;
 #endif
 
     delete[] d;

-
-    /* so far only copy, no moves. TODO. */
-    drop_source->m_retValue = wxDragCopy;

 }
 
 //----------------------------------------------------------------------------
 // "drag_data_delete"
 //----------------------------------------------------------------------------
 
 }
 
 //----------------------------------------------------------------------------
 // "drag_data_delete"
 //----------------------------------------------------------------------------
 

-static void source_drag_data_delete( GtkWidget          *WXUNUSED(widget),
-                                     GdkDragContext     *WXUNUSED(context),
-                                     wxDropSource       *drop_source )
+static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
+                                     GdkDragContext *context,
+                                     wxDropSource *WXUNUSED(drop_source) )

 {
 {

-    if (g_isIdle) wxapp_install_idle_handler();
-
-//  printf( "Delete the data!\n" );
+    if (g_isIdle)
+        wxapp_install_idle_handler();

 
 

-    drop_source->m_retValue = wxDragMove;
+    // printf( "Drag source: drag_data_delete\n" );

 }
 
 //----------------------------------------------------------------------------
 }
 
 //----------------------------------------------------------------------------


@@ -595,9 +594,10 @@ static void source_drag_begin( GtkWidget          *WXUNUSED(widget),
                                GdkDragContext     *WXUNUSED(context),
                                wxDropSource       *WXUNUSED(drop_source) )
 {
                                GdkDragContext     *WXUNUSED(context),
                                wxDropSource       *WXUNUSED(drop_source) )
 {

-    if (g_isIdle) wxapp_install_idle_handler();
+    if (g_isIdle)
+        wxapp_install_idle_handler();

 
 

-//  printf( "drag_begin.\n" );
+    // printf( "Drag source: drag_begin.\n" );

 }
 
 //----------------------------------------------------------------------------
 }
 
 //----------------------------------------------------------------------------


@@ -610,7 +610,7 @@ static void source_drag_end( GtkWidget          *WXUNUSED(widget),
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
 {
     if (g_isIdle) wxapp_install_idle_handler();
 

-//  printf( "drag_end.\n" );
+    // printf( "Drag source: drag_end.\n" );

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


@@ -627,9 +627,10 @@ gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigur
 
     wxDragResult action = wxDragNone;
     if (source->m_dragContext->action == GDK_ACTION_COPY) action = wxDragCopy;
 
     wxDragResult action = wxDragNone;
     if (source->m_dragContext->action == GDK_ACTION_COPY) action = wxDragCopy;

+    if (source->m_dragContext->action == GDK_ACTION_LINK) action = wxDragLink;

     if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove;
 
     if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove;
 

-    source->GiveFeedback( action, FALSE );
+    source->GiveFeedback( action );

 
     return 0;
 }
 
     return 0;
 }


@@ -638,9 +639,11 @@ gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigur
 // wxDropSource
 //---------------------------------------------------------------------------
 
 // wxDropSource
 //---------------------------------------------------------------------------
 

-wxDropSource::wxDropSource( wxWindow *win, const wxIcon &icon )
+wxDropSource::wxDropSource(wxWindow *win,
+                           const wxIcon &iconCopy,
+                           const wxIcon &iconMove,
+                           const wxIcon &iconNone)

 {
 {

-    g_blockEventsOnDrag = TRUE;

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


@@ -651,11 +654,14 @@ wxDropSource::wxDropSource( wxWindow *win, const wxIcon &icon )
 
     m_retValue = wxDragCancel;
 
 
     m_retValue = wxDragCancel;
 

-    m_icon = icon;
-    if (wxNullIcon == icon) m_icon = wxIcon( page_xpm );
+    SetIcons(iconCopy, iconMove, iconNone);

 }
 
 }
 

-wxDropSource::wxDropSource( wxDataObject& data, wxWindow *win, const wxIcon &icon )
+wxDropSource::wxDropSource(wxDataObject& data,
+                           wxWindow *win,
+                           const wxIcon &iconCopy,
+                           const wxIcon &iconMove,
+                           const wxIcon &iconNone)

 {
     m_waiting = TRUE;
 
 {
     m_waiting = TRUE;
 


@@ -669,33 +675,64 @@ wxDropSource::wxDropSource( wxDataObject& data, wxWindow *win, const wxIcon &ico
 
     m_retValue = wxDragCancel;
 
 
     m_retValue = wxDragCancel;
 

-    m_icon = icon;
-    if (wxNullIcon == icon) m_icon = wxIcon( page_xpm );
+    SetIcons(iconCopy, iconMove, iconNone);
+}
+
+void wxDropSource::SetIcons(const wxIcon &iconCopy,
+                            const wxIcon &iconMove,
+                            const wxIcon &iconNone)
+{
+    m_iconCopy = iconCopy;
+    m_iconMove = iconMove;
+    m_iconNone = iconNone;
+
+    if ( !m_iconCopy.Ok() )
+        m_iconCopy = wxIcon(page_xpm);
+    if ( !m_iconMove.Ok() )
+        m_iconMove = m_iconCopy;
+    if ( !m_iconNone.Ok() )
+        m_iconNone = m_iconCopy;

 }
 
 wxDropSource::~wxDropSource()
 {
 }
 
 wxDropSource::~wxDropSource()
 {

-    g_blockEventsOnDrag = FALSE;

 }
 
 }
 

-void wxDropSource::PrepareIcon( int hot_x, int hot_y, GdkDragContext *context )
+void wxDropSource::PrepareIcon( int action, GdkDragContext *context )

 {
 {

-    GdkBitmap *mask = (GdkBitmap *) NULL;
-    if (m_icon.GetMask()) mask = m_icon.GetMask()->GetBitmap();
-    GdkPixmap *pixmap = m_icon.GetPixmap();
+    // get the right icon to display
+    wxIcon *icon = NULL;
+    if ( action & GDK_ACTION_MOVE )
+        icon = &m_iconMove;
+    else if ( action & GDK_ACTION_COPY )
+        icon = &m_iconCopy;
+    else
+        icon = &m_iconNone;
+
+    GdkBitmap *mask;
+    if ( icon->GetMask() )
+        mask = icon->GetMask()->GetBitmap();
+    else
+        mask = (GdkBitmap *)NULL;
+
+    GdkPixmap *pixmap = icon->GetPixmap();

 
     gint width,height;
     gdk_window_get_size (pixmap, &width, &height);
 
     GdkColormap *colormap = gtk_widget_get_colormap( m_widget );
 
     gint width,height;
     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));
     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);
 
     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 ();
     gtk_widget_pop_visual ();

+#endif

     gtk_widget_pop_colormap ();
 
     gtk_widget_set_usize (m_iconWindow, width, height);
     gtk_widget_pop_colormap ();
 
     gtk_widget_set_usize (m_iconWindow, width, height);


@@ -709,12 +746,12 @@ void wxDropSource::PrepareIcon( int hot_x, int hot_y, GdkDragContext *context )
     if (mask)
         gtk_widget_shape_combine_mask (m_iconWindow, mask, 0, 0);
 
     if (mask)
         gtk_widget_shape_combine_mask (m_iconWindow, mask, 0, 0);
 

-    gtk_drag_set_icon_widget( context, m_iconWindow, hot_x, hot_y );
+    gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 );

 }
 
 }
 

-wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
+wxDragResult wxDropSource::DoDragDrop( bool allowMove )

 {
 {

-    wxASSERT_MSG( m_data, wxT("wxDragSource: no data") );
+    wxASSERT_MSG( m_data, wxT("Drop source: no data") );

 
     if (!m_data)
         return (wxDragResult) wxDragNone;
 
     if (!m_data)
         return (wxDragResult) wxDragNone;


@@ -722,6 +759,11 @@ wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
     if (m_data->GetFormatCount() == 0)
         return (wxDragResult) wxDragNone;
 
     if (m_data->GetFormatCount() == 0)
         return (wxDragResult) wxDragNone;
 

+    // still in drag
+    if (g_blockEventsOnDrag)
+        return (wxDragResult) wxDragNone;
+
+    // disabled for now

     g_blockEventsOnDrag = TRUE;
 
     RegisterWindow();
     g_blockEventsOnDrag = TRUE;
 
     RegisterWindow();


@@ -735,7 +777,7 @@ wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {
         GdkAtom atom = array[i];
     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {
         GdkAtom atom = array[i];

-        wxLogDebug( wxT("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;
         gtk_target_list_add( target_list, atom, 0, 0 );
     }
     delete[] array;


@@ -749,7 +791,7 @@ wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
     event.x = x;
     event.y = y;
     event.state = state;
     event.x = x;
     event.y = y;
     event.state = state;

-    event.time = GDK_CURRENT_TIME;
+    event.time = (guint32)GDK_CURRENT_TIME;

 
     /* GTK wants to know which button was pressed which caused the dragging */
     int button_number = 0;
 
     /* GTK wants to know which button was pressed which caused the dragging */
     int button_number = 0;


@@ -765,17 +807,27 @@ wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
     /* don't start dragging if no button is down */
     if (button_number)
     {
     /* don't start dragging if no button is down */
     if (button_number)
     {

+        int action = GDK_ACTION_COPY;
+        if ( allowMove )
+            action |= GDK_ACTION_MOVE;

         GdkDragContext *context = gtk_drag_begin( m_widget,
         GdkDragContext *context = gtk_drag_begin( m_widget,

-                                              target_list,
-                                              (GdkDragAction)(GDK_ACTION_COPY|GDK_ACTION_MOVE),
-                                              button_number,  /* number of mouse button which started drag */
-                                              (GdkEvent*) &event );
+                target_list,
+                (GdkDragAction)action,
+                button_number,  /* number of mouse button which started drag */
+                (GdkEvent*) &event );

 
         m_dragContext = context;
 
 
         m_dragContext = context;
 

-        PrepareIcon( 0, 0, 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_LINK)
+            m_retValue = wxDragLink;
+        if (context->action == GDK_ACTION_MOVE)
+            m_retValue = wxDragMove;

     }
 
 #if wxUSE_THREADS
     }
 
 #if wxUSE_THREADS


@@ -820,5 +872,4 @@ void wxDropSource::UnregisterWindow()
 }
 
 #endif
 }
 
 #endif

-

       // wxUSE_DRAG_AND_DROP
       // wxUSE_DRAG_AND_DROP