]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk1/dnd.cpp
Some little additions to how wxBufferedDC is wrapped.
[wxWidgets.git] / src / gtk1 / dnd.cpp
index e8e4232a2a81fc456350d614a5345ef69bec9266..7c1834bf873532c38122e53152db4876e2f2a01c 100644 (file)
@@ -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"
 #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 "wx/gtk/private.h"
 
 
-#include "gtk/gtkdnd.h"
-#include "gtk/gtkselection.h"
+#include <gdk/gdkprivate.h>
+
+#include <gtk/gtkdnd.h>
+#include <gtk/gtkselection.h>
 
 //-----------------------------------------------------------------------------
 // idle system
 
 //-----------------------------------------------------------------------------
 // idle system
@@ -40,8 +40,6 @@ extern bool g_isIdle;
 //-----------------------------------------------------------------------------
 
 #if wxUSE_THREADS
 //-----------------------------------------------------------------------------
 
 #if wxUSE_THREADS
-extern void wxapp_install_thread_wakeup();
-extern void wxapp_uninstall_thread_wakeup();
 #endif
 
 //----------------------------------------------------------------------------
 #endif
 
 //----------------------------------------------------------------------------
@@ -50,12 +48,17 @@ 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
 //----------------------------------------------------------------------------
 
 /* XPM */
 //----------------------------------------------------------------------------
 // standard icons
 //----------------------------------------------------------------------------
 
 /* XPM */
-static char * page_xpm[] = {
+static const char * page_xpm[] = {
 /* width height ncolors chars_per_pixel */
 "32 32 5 1",
 /* colors */
 /* width height ncolors chars_per_pixel */
 "32 32 5 1",
 /* colors */
@@ -150,6 +153,8 @@ 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 +175,8 @@ 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 +233,16 @@ 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 FALSE") );
+        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,
@@ -240,11 +252,10 @@ 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 */
-        wxapp_uninstall_thread_wakeup();
 #endif
 
         GdkAtom format = drop_target->GetMatchingPair();
 #endif
 
         GdkAtom format = drop_target->GetMatchingPair();
@@ -263,7 +274,6 @@ 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
     }
 
@@ -306,7 +316,7 @@ 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 +325,21 @@ 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 );
@@ -359,7 +371,7 @@ wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x),
 
     // disable the debug message from GetMatchingPair() - there are too many
     // of them otherwise
 
     // disable the debug message from GetMatchingPair() - there are too many
     // of them otherwise
-#if 0 //def __WXDEBUG__
+#ifdef __WXDEBUG__
     wxLogNull noLog;
 #endif // Debug
 
     wxLogNull noLog;
 #endif // Debug
 
@@ -401,7 +413,8 @@ GdkAtom wxDropTarget::GetMatchingPair()
         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 ))
@@ -499,7 +512,8 @@ 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;
 
@@ -507,19 +521,19 @@ 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;
     }
 
@@ -537,7 +551,6 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 #if wxUSE_THREADS
     /* disable GUI threads */
 
 #if wxUSE_THREADS
     /* disable GUI threads */
-    wxapp_uninstall_thread_wakeup();
 #endif
 
                 gtk_selection_data_set( selection_data,
 #endif
 
                 gtk_selection_data_set( selection_data,
@@ -548,28 +561,23 @@ source_drag_data_get  (GtkWidget          *WXUNUSED(widget),
 
 #if wxUSE_THREADS
     /* enable GUI threads */
 
 #if wxUSE_THREADS
     /* enable GUI threads */
-    wxapp_install_thread_wakeup();
 #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" );
 }
 
 //----------------------------------------------------------------------------
 }
 
 //----------------------------------------------------------------------------
@@ -580,9 +588,10 @@ 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" );
 }
 
 //----------------------------------------------------------------------------
 }
 
 //----------------------------------------------------------------------------
@@ -595,7 +604,7 @@ 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;
 }
@@ -612,6 +621,7 @@ 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;
 
     source->GiveFeedback( action );
     if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove;
 
     source->GiveFeedback( action );
@@ -623,9 +633,11 @@ 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;
@@ -636,11 +648,14 @@ 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;
 
@@ -654,33 +669,64 @@ 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);
@@ -694,7 +740,7 @@ 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 allowMove )
 }
 
 wxDragResult wxDropSource::DoDragDrop( bool allowMove )
@@ -707,6 +753,11 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
     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();
@@ -720,7 +771,7 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
     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("Drop source: 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;
@@ -744,30 +795,36 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
 
 #if wxUSE_THREADS
     /* disable GUI threads */
 
 #if wxUSE_THREADS
     /* disable GUI threads */
-    wxapp_uninstall_thread_wakeup();
 #endif
 
     /* don't start dragging if no button is down */
     if (button_number)
     {
 #endif
 
     /* 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);
+        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,
-                                             action,
-                                              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
     /* re-enable GUI threads */
     }
 
 #if wxUSE_THREADS
     /* re-enable GUI threads */
-    wxapp_install_thread_wakeup();
 #endif
 
     g_blockEventsOnDrag = FALSE;
 #endif
 
     g_blockEventsOnDrag = FALSE;
@@ -807,5 +864,4 @@ void wxDropSource::UnregisterWindow()
 }
 
 #endif
 }
 
 #endif
-
       // wxUSE_DRAG_AND_DROP
       // wxUSE_DRAG_AND_DROP