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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57485 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2008-12-21 22:17:16 +00:00
parent c220de0b39
commit 3eef425f9a
1 changed files with 83 additions and 1 deletions
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84
src/gtk/clipbrd.cpp
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@ -108,7 +108,7 @@ private:
wxClipboard *wxClipboardSync::ms_clipboard = NULL;
// ============================================================================
// clipboard ca;backs implementation
// clipboard callbacks implementation
// ============================================================================
//-----------------------------------------------------------------------------
@ -344,6 +344,69 @@ void wxClipboard::GTKOnSelectionReceived(const GtkSelectionData& sel)
m_formatSupported = true;
}
//-----------------------------------------------------------------------------
// asynchronous "selection_received" for targets
//-----------------------------------------------------------------------------
extern "C" {
static void
async_targets_selection_received( GtkWidget *WXUNUSED(widget),
GtkSelectionData *selection_data,
guint32 WXUNUSED(time),
wxClipboard *clipboard )
{
if ( !clipboard ) // Assert?
return;
if (!clipboard->m_sink)
return;
wxClipboardEvent *event = new wxClipboardEvent(wxEVT_CLIPBOARD_CHANGED);
if ( !selection_data || selection_data->length <= 0 )
{
clipboard->m_sink->QueueEvent( event );
return;
}
// make sure we got the data in the correct form
GdkAtom type = selection_data->type;
if ( type != GDK_SELECTION_TYPE_ATOM )
{
if ( strcmp(wxGtkString(gdk_atom_name(type)), "TARGETS") != 0 )
{
wxLogTrace( TRACE_CLIPBOARD,
_T("got unsupported clipboard target") );
clipboard->m_sink->QueueEvent( event );
return;
}
}
#ifdef __WXDEBUG__
// it's not really a format, of course, but we can reuse its GetId() method
// to format this atom as string
wxDataFormat clip(selection_data->selection);
wxLogTrace( TRACE_CLIPBOARD,
wxT("Received available formats for clipboard %s"),
clip.GetId().c_str() );
#endif // __WXDEBUG__
// the atoms we received, holding a list of targets (= formats)
const GdkAtom * const atoms = (GdkAtom *)selection_data->data;
for ( size_t i = 0; i < selection_data->length/sizeof(GdkAtom); i++ )
{
const wxDataFormat format(atoms[i]);
wxLogTrace(TRACE_CLIPBOARD, wxT("\t%s"), format.GetId().c_str());
event->AddFormat( format );
}
clipboard->m_sink->QueueEvent( event );
}
}
// ============================================================================
// wxClipboard implementation
// ============================================================================
@ -372,6 +435,13 @@ wxClipboard::wxClipboard()
g_signal_connect (m_targetsWidget, "selection_received",
G_CALLBACK (targets_selection_received), this);
// we use m_targetsWidgetAsync to query what formats asynchronously
m_targetsWidgetAsync = gtk_window_new( GTK_WINDOW_POPUP );
gtk_widget_realize( m_targetsWidgetAsync );
g_signal_connect (m_targetsWidgetAsync, "selection_received",
G_CALLBACK (async_targets_selection_received), this);
// we use m_clipboardWidget to get and to offer data
m_clipboardWidget = gtk_window_new( GTK_WINDOW_POPUP );
gtk_widget_realize( m_clipboardWidget );
@ -448,6 +518,18 @@ void wxClipboard::AddSupportedTarget(GdkAtom atom)
);
}
bool wxClipboard::IsSupportedAsync(wxEvtHandler *sink)
{
m_sink = sink;
gtk_selection_convert( m_targetsWidgetAsync,
GTKGetClipboardAtom(),
g_targetsAtom,
(guint32) GDK_CURRENT_TIME );
return true;
}
bool wxClipboard::DoIsSupported(const wxDataFormat& format)
{
wxCHECK_MSG( format, false, wxT("invalid clipboard format") );