simplify/cleanup wxTheXXXList and wxGDIObject code (patch 1452023 from Paul Cornett)

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

diff --git a/src/gtk1/clipbrd.cpp b/src/gtk1/clipbrd.cpp
index 6f316b16ee3d326f1759a0ecd82886c405695629..9f06257b3d91cc1f713d2e8fe623df9ff45dad19 100644 (file)
--- a/src/gtk1/clipbrd.cpp
+++ b/src/gtk1/clipbrd.cpp
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "clipbrd.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -39,6 +35,7 @@
 
 GdkAtom  g_clipboardAtom   = 0;
 GdkAtom  g_targetsAtom     = 0;
 
 GdkAtom  g_clipboardAtom   = 0;
 GdkAtom  g_targetsAtom     = 0;

+GdkAtom  g_timestampAtom   = 0;

 
 // the trace mask we use with wxLogTrace() - call
 // wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here
 
 // the trace mask we use with wxLogTrace() - call
 // wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here


@@ -74,6 +71,7 @@ struct _GtkSelectionData
 // "selection_received" for targets
 //-----------------------------------------------------------------------------
 
 // "selection_received" for targets
 //-----------------------------------------------------------------------------
 

+extern "C" {

 static void
 targets_selection_received( GtkWidget *WXUNUSED(widget),
                             GtkSelectionData *selection_data,
 static void
 targets_selection_received( GtkWidget *WXUNUSED(widget),
                             GtkSelectionData *selection_data,


@@ -86,14 +84,17 @@ targets_selection_received( GtkWidget *WXUNUSED(widget),
         GdkAtom type = selection_data->type;
         if ( type != GDK_SELECTION_TYPE_ATOM )
         {
         GdkAtom type = selection_data->type;
         if ( type != GDK_SELECTION_TYPE_ATOM )
         {

-            if ( strcmp(gdk_atom_name(type), "TARGETS") )
+            gchar* atom_name = gdk_atom_name(type);
+            if ( strcmp(atom_name, "TARGETS") )

             {
                 wxLogTrace( TRACE_CLIPBOARD,
                             _T("got unsupported clipboard target") );
 
                 clipboard->m_waiting = FALSE;
             {
                 wxLogTrace( TRACE_CLIPBOARD,
                             _T("got unsupported clipboard target") );
 
                 clipboard->m_waiting = FALSE;

+                g_free(atom_name);

                 return;
             }
                 return;
             }

+            g_free(atom_name);

         }
 
 #ifdef __WXDEBUG__
         }
 
 #ifdef __WXDEBUG__


@@ -114,7 +115,7 @@ targets_selection_received( GtkWidget *WXUNUSED(widget),
                         wxT("selection received for targets, format %s"),
                         format.GetId().c_str() );
 
                         wxT("selection received for targets, format %s"),
                         format.GetId().c_str() );
 

-//            printf( "format %s requested %s\n", 
+//            printf( "format %s requested %s\n",

 //                    gdk_atom_name( atoms[i] ),
 //                    gdk_atom_name( clipboard->m_targetRequested ) );
 
 //                    gdk_atom_name( atoms[i] ),
 //                    gdk_atom_name( clipboard->m_targetRequested ) );
 


@@ -129,11 +130,13 @@ targets_selection_received( GtkWidget *WXUNUSED(widget),
 
     clipboard->m_waiting = FALSE;
 }
 
     clipboard->m_waiting = FALSE;
 }

+}

 
 //-----------------------------------------------------------------------------
 // "selection_received" for the actual data
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // "selection_received" for the actual data
 //-----------------------------------------------------------------------------
 

+extern "C" {

 static void
 selection_received( GtkWidget *WXUNUSED(widget),
                     GtkSelectionData *selection_data,
 static void
 selection_received( GtkWidget *WXUNUSED(widget),
                     GtkSelectionData *selection_data,


@@ -169,24 +172,29 @@ selection_received( GtkWidget *WXUNUSED(widget),
         return;
     }
 
         return;
     }
 

-    /* make sure we got the data in the correct form (selection type).
-       if so, copy data to target object */
+#if 0
+    This seems to cause problems somehow
+    // make sure we got the data in the correct form (selection type).
+    // if so, copy data to target object

     if (selection_data->type != GDK_SELECTION_TYPE_STRING)
     {
         clipboard->m_waiting = FALSE;
         return;
     }
     if (selection_data->type != GDK_SELECTION_TYPE_STRING)
     {
         clipboard->m_waiting = FALSE;
         return;
     }

+#endif

 
     data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data );
 
     wxTheClipboard->m_formatSupported = TRUE;
     clipboard->m_waiting = FALSE;
 }
 
     data_object->SetData( format, (size_t) selection_data->length, (const char*) selection_data->data );
 
     wxTheClipboard->m_formatSupported = TRUE;
     clipboard->m_waiting = FALSE;
 }

+}

 
 //-----------------------------------------------------------------------------
 // "selection_clear"
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // "selection_clear"
 //-----------------------------------------------------------------------------
 

+extern "C" {

 static gint
 selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
 {
 static gint
 selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
 {


@@ -223,17 +231,19 @@ selection_clear_clip( GtkWidget *WXUNUSED(widget), GdkEventSelection *event )
     wxTheClipboard->m_waiting = FALSE;
     return TRUE;
 }
     wxTheClipboard->m_waiting = FALSE;
     return TRUE;
 }

+}

 
 //-----------------------------------------------------------------------------
 // selection handler for supplying data
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // selection handler for supplying data
 //-----------------------------------------------------------------------------
 

+extern "C" {

 static void
 selection_handler( GtkWidget *WXUNUSED(widget),
                    GtkSelectionData *selection_data,
                    guint WXUNUSED(info),
                    guint WXUNUSED(time),
 static void
 selection_handler( GtkWidget *WXUNUSED(widget),
                    GtkSelectionData *selection_data,
                    guint WXUNUSED(info),
                    guint WXUNUSED(time),

-                   gpointer WXUNUSED(data) )
+                   gpointer signal_data )

 {
     if (!wxTheClipboard) return;
 
 {
     if (!wxTheClipboard) return;
 


@@ -241,8 +251,37 @@ selection_handler( GtkWidget *WXUNUSED(widget),
 
     wxDataObject *data = wxTheClipboard->m_data;
 
 
     wxDataObject *data = wxTheClipboard->m_data;
 

+    // ICCCM says that TIMESTAMP is a required atom.
+    // In particular, it satisfies Klipper, which polls
+    // TIMESTAMP to see if the clipboards content has changed.
+    // It shall return the time which was used to set the data.
+    if (selection_data->target == g_timestampAtom)
+    {
+        guint timestamp = GPOINTER_TO_UINT (signal_data);
+        gtk_selection_data_set(selection_data,
+                               GDK_SELECTION_TYPE_INTEGER,
+                               32,
+                               (guchar*)&(timestamp),
+                               sizeof(timestamp));
+        wxLogTrace(TRACE_CLIPBOARD,
+                   _T("Clipboard TIMESTAMP requested, returning timestamp=%u"),
+                   timestamp);
+        return;
+    }
+

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

+#ifdef __WXDEBUG__
+    wxLogTrace(TRACE_CLIPBOARD,
+               _T("clipboard data in format %s, GtkSelectionData is target=%s type=%s selection=%s timestamp=%u"),
+               format.GetId().c_str(),
+               wxString::FromAscii(gdk_atom_name(selection_data->target)).c_str(),
+               wxString::FromAscii(gdk_atom_name(selection_data->type)).c_str(),
+               wxString::FromAscii(gdk_atom_name(selection_data->selection)).c_str(),
+               GPOINTER_TO_UINT( signal_data )
+               );
+#endif
+

     if (!data->IsSupportedFormat( format )) return;
 
     int size = data->GetDataSize( format );
     if (!data->IsSupportedFormat( format )) return;
 
     int size = data->GetDataSize( format );


@@ -255,14 +294,15 @@ selection_handler( GtkWidget *WXUNUSED(widget),
     data->GetDataHere( selection_data->target, d );
 
     gtk_selection_data_set(
     data->GetDataHere( selection_data->target, d );
 
     gtk_selection_data_set(

-        selection_data,
-        GDK_SELECTION_TYPE_STRING,
-        8*sizeof(gchar),
-        (unsigned char*) d,
-        size );
+            selection_data,
+            GDK_SELECTION_TYPE_STRING,
+            8 * sizeof(gchar),
+            (unsigned char*) d,
+            size );

 
     free(d);
 }
 
     free(d);
 }

+}

 
 //-----------------------------------------------------------------------------
 // wxClipboard
 
 //-----------------------------------------------------------------------------
 // wxClipboard


@@ -273,6 +313,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxClipboard,wxObject)
 wxClipboard::wxClipboard()
 {
     m_open = FALSE;
 wxClipboard::wxClipboard()
 {
     m_open = FALSE;

+    m_waiting = FALSE;

 
     m_ownsClipboard = FALSE;
     m_ownsPrimarySelection = FALSE;
 
     m_ownsClipboard = FALSE;
     m_ownsPrimarySelection = FALSE;


@@ -307,6 +348,7 @@ wxClipboard::wxClipboard()
 
     if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE );
     if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE);
 
     if (!g_clipboardAtom) g_clipboardAtom = gdk_atom_intern( "CLIPBOARD", FALSE );
     if (!g_targetsAtom) g_targetsAtom = gdk_atom_intern ("TARGETS", FALSE);

+    if (!g_timestampAtom) g_timestampAtom = gdk_atom_intern ("TIMESTAMP", FALSE);

 
     m_formatSupported = FALSE;
     m_targetRequested = 0;
 
     m_formatSupported = FALSE;
     m_targetRequested = 0;


@@ -406,6 +448,11 @@ bool wxClipboard::AddData( wxDataObject *data )
     GdkAtom clipboard = m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
                                      : g_clipboardAtom;
 
     GdkAtom clipboard = m_usePrimary ? (GdkAtom)GDK_SELECTION_PRIMARY
                                      : g_clipboardAtom;
 

+    // by default provide TIMESTAMP as a target
+    gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
+                              clipboard,
+                              g_timestampAtom,
+                              0 );

 
     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {
 
     for (size_t i = 0; i < m_data->GetFormatCount(); i++)
     {


@@ -413,9 +460,9 @@ bool wxClipboard::AddData( wxDataObject *data )
                     wxT("wxClipboard now supports atom %s"),
                     array[i].GetId().c_str() );
 
                     wxT("wxClipboard now supports atom %s"),
                     array[i].GetId().c_str() );
 

-//        printf( "added %s\n", 
+//        printf( "added %s\n",

 //                    gdk_atom_name( array[i].GetFormatId() ) );
 //                    gdk_atom_name( array[i].GetFormatId() ) );

-                    
+

         gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
                                   clipboard,
                                   array[i],
         gtk_selection_add_target( GTK_WIDGET(m_clipboardWidget),
                                   clipboard,
                                   array[i],


@@ -427,7 +474,7 @@ bool wxClipboard::AddData( wxDataObject *data )
     gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),
                         "selection_get",
                         GTK_SIGNAL_FUNC(selection_handler),
     gtk_signal_connect( GTK_OBJECT(m_clipboardWidget),
                         "selection_get",
                         GTK_SIGNAL_FUNC(selection_handler),

-                        (gpointer) NULL );
+                        GUINT_TO_POINTER( gdk_event_get_time(gtk_get_current_event()) ) );

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


@@ -470,11 +517,9 @@ bool wxClipboard::IsSupported( const wxDataFormat& format )
     /* store requested format to be asked for by callbacks */
     m_targetRequested = format;
 
     /* store requested format to be asked for by callbacks */
     m_targetRequested = format;
 

-#if 0

     wxLogTrace( TRACE_CLIPBOARD,
                 wxT("wxClipboard:IsSupported: requested format: %s"),
                 format.GetId().c_str() );
     wxLogTrace( TRACE_CLIPBOARD,
                 wxT("wxClipboard:IsSupported: requested format: %s"),
                 format.GetId().c_str() );

-#endif

 
     wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
 
 
     wxCHECK_MSG( m_targetRequested, FALSE, wxT("invalid clipboard format") );
 


@@ -498,9 +543,7 @@ bool wxClipboard::IsSupported( const wxDataFormat& format )
 
     while (m_waiting) gtk_main_iteration();
 
 
     while (m_waiting) gtk_main_iteration();
 

-    if (!m_formatSupported) return FALSE;
-
-    return TRUE;
+    return m_formatSupported;

 }
 
 bool wxClipboard::GetData( wxDataObject& data )
 }
 
 bool wxClipboard::GetData( wxDataObject& data )