wxWidgets/include/wx/clipbrd.h
Vadim Zeitlin ffd56fbcb5 and now it even compiles
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4107 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-10-21 14:00:30 +00:00

141 lines
4.1 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/clipbrd.h
// Purpose: wxClipboad class and clipboard functions
// Author: Vadim Zeitlin
// Modified by:
// Created: 19.10.99
// RCS-ID: $Id$
// Copyright: (c) wxWindows Team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_CLIPBRD_H_BASE_
#define _WX_CLIPBRD_H_BASE_
#ifdef __GNUG__
#pragma interface "clipboardbase.h"
#endif
#include "wx/defs.h"
#if wxUSE_CLIPBOARD
#include "wx/object.h"
#include "wx/wxchar.h"
class WXDLLEXPORT wxDataFormat;
class WXDLLEXPORT wxDataObject;
// ----------------------------------------------------------------------------
// 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 WXDLLEXPORT wxClipboardBase : public wxObject
{
public:
wxClipboardBase();
// 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;
// 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; }
// X11 has two clipboards which get selected by this call. Empty on MSW.
virtual void UsePrimarySelection( bool WXUNUSED(primary) = FALSE ) { }
};
// ----------------------------------------------------------------------------
// include platform-specific class declaration
// ----------------------------------------------------------------------------
#if defined(__WXMSW__)
#include "wx/msw/clipbrd.h"
#elif defined(__WXMOTIF__)
#include "wx/motif/clipbrd.h"
#elif defined(__WXGTK__)
#include "wx/gtk/clipbrd.h"
#elif defined(__WXQT__)
#include "wx/gtk/clipbrd.h"
#elif defined(__WXMAC__)
#include "wx/mac/clipbrd.h"
#elif defined(__WXPM__)
#include "wx/os2/clipbrd.h"
#elif defined(__WXSTUBS__)
#include "wx/stubs/clipbrd.h"
#endif
// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------
// The global clipboard object
WXDLLEXPORT_DATA(extern wxClipboard *) wxTheClipboard;
// ----------------------------------------------------------------------------
// helpful class for opening the clipboard and automatically closing it
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxClipboardLocker
{
public:
wxClipboardLocker(wxClipboard *clipboard = (wxClipboard *)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;
};
#endif // wxUSE_CLIPBOARD
#endif // _WX_CLIPBRD_H_BASE_