Fix menu event handlers calling order.

[wxWidgets.git] / include / wx / clipbrd.h

diff --git a/include/wx/clipbrd.h b/include/wx/clipbrd.h
index f5e8571912fecec6d006c38ffe714c7e17b6a602..3adcf06d01cf78c594b24b4a669417d06b7c8772 100644 (file)
--- a/include/wx/clipbrd.h
+++ b/include/wx/clipbrd.h
@@ -1,13 +1,205 @@
-#ifndef __CLIPBRDH_BASE__
-#define __CLIPBRDH_BASE__
-
-#if defined(__WINDOWS__)
-#include "wx/msw/clipbrd.h"
-#elif defined(__MOTIF__)
-#include "wx/xt/clipbrd.h"
-#elif defined(__GTK__)
-#include "wx/gtk/clipbrd.h"
-#endif
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/clipbrd.h
+// Purpose:     wxClipboad class and clipboard functions
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     19.10.99
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWidgets Team
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_CLIPBRD_H_BASE_
+#define _WX_CLIPBRD_H_BASE_
+
+#include "wx/defs.h"
+
+#if wxUSE_CLIPBOARD
+
+
+#include "wx/event.h"
+#include "wx/chartype.h"
+#include "wx/dataobj.h"     // for wxDataFormat
+#include "wx/vector.h"
+
+class WXDLLIMPEXP_FWD_CORE wxClipboard;
+
+// ----------------------------------------------------------------------------
+// wxClipboard represents the system clipboard. Normally, you should use
+// wxTheClipboard which is a global pointer to the (unique) clipboard.
+//
+// Clipboard can be used to copy data to/paste data from. It works together
+// with wxDataObject.
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxClipboardBase : public wxObject
+{
+public:
+    wxClipboardBase() { m_usePrimary = false; }
+
+    // open the clipboard before Add/SetData() and GetData()
+    virtual bool Open() = 0;
+
+    // close the clipboard after Add/SetData() and GetData()
+    virtual void Close() = 0;
+
+    // query whether the clipboard is opened
+    virtual bool IsOpened() const = 0;
+
+    // add to the clipboard data
+    //
+    // NB: the clipboard owns the pointer and will delete it, so data must be
+    //     allocated on the heap
+    virtual bool AddData( wxDataObject *data ) = 0;
+
+    // set the clipboard data, this is the same as Clear() followed by
+    // AddData()
+    virtual bool SetData( wxDataObject *data ) = 0;
+
+    // ask if data in correct format is available
+    virtual bool IsSupported( const wxDataFormat& format ) = 0;
+
+    // ask if data in correct format is available
+    virtual bool IsSupportedAsync( wxEvtHandler *sink );
+
+    // fill data with data on the clipboard (if available)
+    virtual bool GetData( wxDataObject& data ) = 0;
+
+    // clears wxTheClipboard and the system's clipboard if possible
+    virtual void Clear() = 0;
+
+    // flushes the clipboard: this means that the data which is currently on
+    // clipboard will stay available even after the application exits (possibly
+    // eating memory), otherwise the clipboard will be emptied on exit
+    virtual bool Flush() { return false; }
+
+    // this allows to choose whether we work with CLIPBOARD (default) or
+    // PRIMARY selection on X11-based systems
+    //
+    // on the other ones, working with primary selection does nothing: this
+    // allows to write code which sets the primary selection when something is
+    // selected without any ill effects (i.e. without overwriting the
+    // clipboard which would be wrong on the platforms without X11 PRIMARY)
+    virtual void UsePrimarySelection(bool usePrimary = false)
+    {
+        m_usePrimary = usePrimary;
+    }
+
+    // return true if we're using primary selection
+    bool IsUsingPrimarySelection() const { return m_usePrimary; }
+
+    // Returns global instance (wxTheClipboard) of the object:
+    static wxClipboard *Get();
+
+
+    // don't use this directly, it is public for compatibility with some ports
+    // (wxX11, wxMotif, ...) only
+    bool m_usePrimary;
+};

 
 

+// ----------------------------------------------------------------------------
+// asynchronous clipboard event
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxClipboardEvent : public wxEvent
+{
+public:
+    wxClipboardEvent(wxEventType evtType = wxEVT_NULL)
+        : wxEvent(0, evtType)
+    {
+    }
+
+    wxClipboardEvent(const wxClipboardEvent& event)
+        : wxEvent(event),
+          m_formats(event.m_formats)
+    {
+    }
+
+    bool SupportsFormat(const wxDataFormat& format) const;
+    void AddFormat(const wxDataFormat& format);
+
+    virtual wxEvent *Clone() const
+    {
+        return new wxClipboardEvent(*this);
+    }
+
+
+protected:
+    wxVector<wxDataFormat> m_formats;
+
+    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxClipboardEvent)
+};
+
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_CLIPBOARD_CHANGED, wxClipboardEvent );
+
+typedef void (wxEvtHandler::*wxClipboardEventFunction)(wxClipboardEvent&);
+
+#define wxClipboardEventHandler(func) \
+    wxEVENT_HANDLER_CAST(wxClipboardEventFunction, func)
+
+#define EVT_CLIPBOARD_CHANGED(func) wx__DECLARE_EVT0(wxEVT_CLIPBOARD_CHANGED, wxClipboardEventHandler(func))
+
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+// The global clipboard object - backward compatible access macro:
+#define wxTheClipboard   (wxClipboard::Get())
+
+// ----------------------------------------------------------------------------
+// include platform-specific class declaration
+// ----------------------------------------------------------------------------
+
+#if defined(__WXMSW__)
+    #include "wx/msw/clipbrd.h"
+#elif defined(__WXMOTIF__)
+    #include "wx/motif/clipbrd.h"
+#elif defined(__WXGTK20__)
+    #include "wx/gtk/clipbrd.h"
+#elif defined(__WXGTK__)
+    #include "wx/gtk1/clipbrd.h"
+#elif defined(__WXX11__)
+    #include "wx/x11/clipbrd.h"
+#elif defined(__WXMAC__)
+    #include "wx/osx/clipbrd.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/clipbrd.h"
+#elif defined(__WXPM__)
+    #include "wx/os2/clipbrd.h"

 #endif
 #endif

-    // __CLIPBRDH_BASE__
+
+// ----------------------------------------------------------------------------
+// helpful class for opening the clipboard and automatically closing it
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxClipboardLocker
+{
+public:
+    wxClipboardLocker(wxClipboard *clipboard = NULL)
+    {
+        m_clipboard = clipboard ? clipboard : wxTheClipboard;
+        if ( m_clipboard )
+        {
+            m_clipboard->Open();
+        }
+    }
+
+    bool operator!() const { return !m_clipboard->IsOpened(); }
+
+    ~wxClipboardLocker()
+    {
+        if ( m_clipboard )
+        {
+            m_clipboard->Close();
+        }
+    }
+
+private:
+    wxClipboard *m_clipboard;
+
+    wxDECLARE_NO_COPY_CLASS(wxClipboardLocker);
+};
+
+#endif // wxUSE_CLIPBOARD
+
+#endif // _WX_CLIPBRD_H_BASE_