More DnD.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4100 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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79ec2ce20e
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@ -73,15 +73,6 @@ public:
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// X11 has two clipboards which get selected by this call. Empty on MSW.
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virtual void UsePrimarySelection( bool WXUNUSED(primary) = FALSE ) { }
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#ifdef WXWIN_COMPATIBILITY_2
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// deprecated version
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bool GetData(wxDataObject *data)
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{
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wxCHECK_MSG(data, FALSE, wxT("NULL pointer in wxClipboard"));
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return GetData(*data);
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}
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#endif // WXWIN_COMPATIBILITY_2
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};
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// ----------------------------------------------------------------------------
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@ -45,8 +45,10 @@ public:
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// set the data which is transfered by drag and drop
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void SetData(wxDataObject& data)
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{ if (m_data) delete m_data;
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m_data = &data; }
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{ m_data = &data; }
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wxDataObject *GetDataObject()
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{ return m_data; }
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// start drag action, see enum wxDragResult for return value description
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//
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@ -33,7 +33,6 @@ class wxWindow;
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class wxDropTarget;
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class wxTextDropTarget;
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class wxFileDropTarget;
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class wxPrivateDropTarget;
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class wxDropSource;
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@ -70,6 +69,37 @@ public:
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void SetDragTime( guint time ) { m_dragTime = time; }
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};
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// ----------------------------------------------------------------------------
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// A simple wxDropTarget derived class for text data: you only need to
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// override OnDropText() to get something working
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// ----------------------------------------------------------------------------
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class wxTextDropTarget : public wxDropTarget
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{
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public:
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wxTextDropTarget();
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virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
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virtual bool OnData(wxCoord x, wxCoord y);
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};
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// ----------------------------------------------------------------------------
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// A drop target which accepts files (dragged from File Manager or Explorer)
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// ----------------------------------------------------------------------------
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class wxFileDropTarget : public wxDropTarget
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{
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public:
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wxFileDropTarget();
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// parameters are the number of files and the array of file names
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virtual bool OnDropFiles(wxCoord x, wxCoord y,
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const wxArrayString& filenames) = 0;
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virtual bool OnData(wxCoord x, wxCoord y);
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};
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//-------------------------------------------------------------------------
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// wxDropSource
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//-------------------------------------------------------------------------
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@ -100,7 +130,6 @@ public:
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GtkWidget *m_widget;
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wxWindow *m_window;
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wxDragResult m_retValue;
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wxDataObject *m_data;
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wxCursor m_defaultCursor;
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wxCursor m_goaheadCursor;
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@ -33,7 +33,6 @@ class wxWindow;
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class wxDropTarget;
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class wxTextDropTarget;
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class wxFileDropTarget;
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class wxPrivateDropTarget;
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class wxDropSource;
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@ -70,6 +69,37 @@ public:
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void SetDragTime( guint time ) { m_dragTime = time; }
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};
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// ----------------------------------------------------------------------------
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// A simple wxDropTarget derived class for text data: you only need to
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// override OnDropText() to get something working
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// ----------------------------------------------------------------------------
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class wxTextDropTarget : public wxDropTarget
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{
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public:
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wxTextDropTarget();
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virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text) = 0;
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virtual bool OnData(wxCoord x, wxCoord y);
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};
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// ----------------------------------------------------------------------------
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// A drop target which accepts files (dragged from File Manager or Explorer)
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// ----------------------------------------------------------------------------
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class wxFileDropTarget : public wxDropTarget
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{
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public:
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wxFileDropTarget();
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// parameters are the number of files and the array of file names
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virtual bool OnDropFiles(wxCoord x, wxCoord y,
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const wxArrayString& filenames) = 0;
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virtual bool OnData(wxCoord x, wxCoord y);
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};
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//-------------------------------------------------------------------------
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// wxDropSource
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//-------------------------------------------------------------------------
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@ -100,7 +130,6 @@ public:
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GtkWidget *m_widget;
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wxWindow *m_window;
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wxDragResult m_retValue;
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wxDataObject *m_data;
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wxCursor m_defaultCursor;
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wxCursor m_goaheadCursor;
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@ -479,7 +479,10 @@
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* Use Apple Ieee-double converter
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*/
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#define wxUSE_APPLE_IEEE 0
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/*
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* Compatibility with 2.0 API.
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*/
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#define WXWIN_COMPATIBILITY_2 1
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/*
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* Enables debugging: memory tracing, assert, etc., contains debug level
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*/
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@ -33,17 +33,6 @@
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#endif
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#include "wx/thread.h"
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#include "wx/clipbrd.h"
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// ===========================================================================
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// implementation
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// ===========================================================================
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// ----------------------------------------------------------------------------
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// some global data defined here
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// ----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxClipboardModule, wxModule)
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// ---------------------------------------------------------------------------
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// wxAppBase
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@ -42,12 +42,13 @@ wxClipboardBase::wxClipboardBase()
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// wxClipboardModule: module responsible for initializing the global clipboard
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// object
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//
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// NB: IMPLEMENT_DYNAMIC_CLASS() for it is in common/appcmn.cpp
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// ----------------------------------------------------------------------------
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class wxClipboardModule : public wxModule
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{
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public:
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wxClipboardModule() { }
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bool OnInit()
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{ wxTheClipboard = new wxClipboard; return TRUE; }
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void OnExit()
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@ -57,3 +58,5 @@ private:
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DECLARE_DYNAMIC_CLASS(wxClipboardModule)
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};
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IMPLEMENT_DYNAMIC_CLASS(wxClipboardModule,wxModule)
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@ -256,6 +256,8 @@ static gboolean target_drag_drop( GtkWidget *widget,
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if (!ret)
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{
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wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
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/* cancel the whole thing */
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gtk_drag_finish( context,
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FALSE, /* no success */
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@ -264,6 +266,8 @@ static gboolean target_drag_drop( GtkWidget *widget,
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}
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else
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{
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wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
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#if wxUSE_THREADS
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/* disable GUI threads */
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wxapp_uninstall_thread_wakeup();
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@ -324,7 +328,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
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return;
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}
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wxLogDebug( wxT( "Drop target: data received") );
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wxLogDebug( wxT( "Drop target: data received event") );
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/* inform the wxDropTarget about the current GtkSelectionData.
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this is only valid for the duration of this call */
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@ -332,11 +336,15 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
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if (drop_target->OnData( x, y ))
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{
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wxLogDebug( wxT( "Drop target: OnData returned TRUE") );
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/* tell GTK that data transfer was successfull */
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gtk_drag_finish( context, TRUE, FALSE, time );
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}
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else
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{
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wxLogDebug( wxT( "Drop target: OnData returned FALSE") );
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/* tell GTK that data transfer was not successfull */
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gtk_drag_finish( context, FALSE, FALSE, time );
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}
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@ -448,7 +456,9 @@ bool wxDropTarget::GetData()
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return TRUE;
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}
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return FALSE;
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m_dataObject->SetData( dragFormat, (size_t)m_dragData->length, (const void*)m_dragData->data );
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return TRUE;
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}
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void wxDropTarget::UnregisterWidget( GtkWidget *widget )
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@ -503,6 +513,41 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget )
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GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
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}
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// ----------------------------------------------------------------------------
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// wxTextDropTarget
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// ----------------------------------------------------------------------------
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wxTextDropTarget::wxTextDropTarget()
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: wxDropTarget(new wxTextDataObject)
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{
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}
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bool wxTextDropTarget::OnData(wxCoord x, wxCoord y)
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{
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if ( !GetData() )
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return FALSE;
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return OnDropText(x, y, ((wxTextDataObject *)m_dataObject)->GetText());
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}
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// ----------------------------------------------------------------------------
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// wxFileDropTarget
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// ----------------------------------------------------------------------------
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wxFileDropTarget::wxFileDropTarget()
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: wxDropTarget(new wxFileDataObject)
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{
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}
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bool wxFileDropTarget::OnData(wxCoord x, wxCoord y)
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{
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if ( !GetData() )
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return FALSE;
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return OnDropFiles(x, y,
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((wxFileDataObject *)m_dataObject)->GetFilenames());
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}
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//----------------------------------------------------------------------------
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// "drag_data_get"
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//----------------------------------------------------------------------------
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@ -517,33 +562,41 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget),
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{
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if (g_isIdle) wxapp_install_idle_handler();
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#ifdef __WXDEBUG__
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char *name = gdk_atom_name( selection_data->target );
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if (name) wxLogDebug( wxT("Drop source: format requested: %s"), name );
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#endif
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wxDataFormat format( selection_data->target );
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wxLogDebug( wxT("Drop source: format requested: %s"), format.GetId().c_str() );
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drop_source->m_retValue = wxDragCancel;
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wxDataObject *data = drop_source->m_data;
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wxDataObject *data = drop_source->GetDataObject();
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if (!data)
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{
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wxLogDebug( wxT("Drop source: no data object") );
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return;
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}
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if (!data->IsSupportedFormat(selection_data->target))
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if (!data->IsSupportedFormat(format))
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{
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wxLogDebug( wxT("Drop source: unsupported format") );
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return;
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}
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if (data->GetDataSize(selection_data->target) == 0)
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if (data->GetDataSize(format) == 0)
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{
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wxLogDebug( wxT("Drop source: empty data") );
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return;
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}
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size_t size = data->GetDataSize(selection_data->target);
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size_t size = data->GetDataSize(format);
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// printf( "data size: %d.\n", (int)data_size );
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guchar *d = new guchar[size];
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if (!data->GetDataHere( selection_data->target, (void*)d ))
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if (!data->GetDataHere( format, (void*)d ))
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{
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free( d );
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delete[] d;
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return;
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}
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@ -563,7 +616,7 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget),
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wxapp_install_thread_wakeup();
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#endif
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free( d );
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delete[] d;
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/* so far only copy, no moves. TODO. */
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drop_source->m_retValue = wxDragCopy;
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@ -256,6 +256,8 @@ static gboolean target_drag_drop( GtkWidget *widget,
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if (!ret)
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{
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wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
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/* cancel the whole thing */
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gtk_drag_finish( context,
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FALSE, /* no success */
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@ -264,6 +266,8 @@ static gboolean target_drag_drop( GtkWidget *widget,
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}
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else
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{
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wxLogDebug( wxT( "Drop target: OnDrop returned TRUE") );
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#if wxUSE_THREADS
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/* disable GUI threads */
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wxapp_uninstall_thread_wakeup();
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@ -324,7 +328,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
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return;
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}
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wxLogDebug( wxT( "Drop target: data received") );
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wxLogDebug( wxT( "Drop target: data received event") );
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/* inform the wxDropTarget about the current GtkSelectionData.
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this is only valid for the duration of this call */
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@ -332,11 +336,15 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
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if (drop_target->OnData( x, y ))
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{
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wxLogDebug( wxT( "Drop target: OnData returned TRUE") );
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/* tell GTK that data transfer was successfull */
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gtk_drag_finish( context, TRUE, FALSE, time );
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}
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else
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{
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wxLogDebug( wxT( "Drop target: OnData returned FALSE") );
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/* tell GTK that data transfer was not successfull */
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gtk_drag_finish( context, FALSE, FALSE, time );
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}
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@ -448,7 +456,9 @@ bool wxDropTarget::GetData()
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return TRUE;
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}
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return FALSE;
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m_dataObject->SetData( dragFormat, (size_t)m_dragData->length, (const void*)m_dragData->data );
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return TRUE;
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}
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void wxDropTarget::UnregisterWidget( GtkWidget *widget )
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@ -503,6 +513,41 @@ void wxDropTarget::RegisterWidget( GtkWidget *widget )
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GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
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}
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// ----------------------------------------------------------------------------
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// wxTextDropTarget
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// ----------------------------------------------------------------------------
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wxTextDropTarget::wxTextDropTarget()
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: wxDropTarget(new wxTextDataObject)
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{
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}
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bool wxTextDropTarget::OnData(wxCoord x, wxCoord y)
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{
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if ( !GetData() )
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return FALSE;
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return OnDropText(x, y, ((wxTextDataObject *)m_dataObject)->GetText());
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}
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// ----------------------------------------------------------------------------
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// wxFileDropTarget
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// ----------------------------------------------------------------------------
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wxFileDropTarget::wxFileDropTarget()
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: wxDropTarget(new wxFileDataObject)
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{
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}
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bool wxFileDropTarget::OnData(wxCoord x, wxCoord y)
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{
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if ( !GetData() )
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return FALSE;
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return OnDropFiles(x, y,
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((wxFileDataObject *)m_dataObject)->GetFilenames());
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}
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//----------------------------------------------------------------------------
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// "drag_data_get"
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//----------------------------------------------------------------------------
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@ -517,33 +562,41 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget),
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{
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if (g_isIdle) wxapp_install_idle_handler();
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#ifdef __WXDEBUG__
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char *name = gdk_atom_name( selection_data->target );
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if (name) wxLogDebug( wxT("Drop source: format requested: %s"), name );
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#endif
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wxDataFormat format( selection_data->target );
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wxLogDebug( wxT("Drop source: format requested: %s"), format.GetId().c_str() );
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drop_source->m_retValue = wxDragCancel;
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wxDataObject *data = drop_source->m_data;
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wxDataObject *data = drop_source->GetDataObject();
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if (!data)
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{
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wxLogDebug( wxT("Drop source: no data object") );
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return;
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}
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if (!data->IsSupportedFormat(selection_data->target))
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if (!data->IsSupportedFormat(format))
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{
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wxLogDebug( wxT("Drop source: unsupported format") );
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return;
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}
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if (data->GetDataSize(selection_data->target) == 0)
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if (data->GetDataSize(format) == 0)
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{
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wxLogDebug( wxT("Drop source: empty data") );
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return;
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}
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size_t size = data->GetDataSize(selection_data->target);
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size_t size = data->GetDataSize(format);
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// printf( "data size: %d.\n", (int)data_size );
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guchar *d = new guchar[size];
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if (!data->GetDataHere( selection_data->target, (void*)d ))
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if (!data->GetDataHere( format, (void*)d ))
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{
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free( d );
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delete[] d;
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return;
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}
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@ -563,7 +616,7 @@ source_drag_data_get (GtkWidget *WXUNUSED(widget),
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wxapp_install_thread_wakeup();
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#endif
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free( d );
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delete[] d;
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/* so far only copy, no moves. TODO. */
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drop_source->m_retValue = wxDragCopy;
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