X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2049ba38adafa0ec146880de29f26e32dd69a125..438959cca892a7651634cc3a7aad4819ac49b23c:/include/wx/clipbrd.h diff --git a/include/wx/clipbrd.h b/include/wx/clipbrd.h index 6dbcfe87eb..3adcf06d01 100644 --- a/include/wx/clipbrd.h +++ b/include/wx/clipbrd.h @@ -1,13 +1,205 @@ -#ifndef __CLIPBRDH_BASE__ -#define __CLIPBRDH_BASE__ +///////////////////////////////////////////////////////////////////////////// +// 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 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" + #include "wx/msw/clipbrd.h" #elif defined(__WXMOTIF__) -#include "wx/xt/clipbrd.h" + #include "wx/motif/clipbrd.h" +#elif defined(__WXGTK20__) + #include "wx/gtk/clipbrd.h" #elif defined(__WXGTK__) -#include "wx/gtk/clipbrd.h" + #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_