e09c35efb5
Using this object we can put an wxImage on or retrieve it from the clipboard. wxImage is stored internally as a blob with either a PNG file (wxMSW, wxGTK) or a TIFF file (wxOSX) and therefore some its metadata (like resolution) is stored on the clipboard too (what is not the case for wxBitmap stored with wxBitmapDataObject). wxImages stored with wxImageDataObject can be used by native applications. Closes #17631.
607 lines
23 KiB
C++
607 lines
23 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/dataobj.h
|
|
// Purpose: common data object classes
|
|
// Author: Vadim Zeitlin, Robert Roebling
|
|
// Modified by:
|
|
// Created: 26.05.99
|
|
// Copyright: (c) wxWidgets Team
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_DATAOBJ_H_BASE_
|
|
#define _WX_DATAOBJ_H_BASE_
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// headers
|
|
// ----------------------------------------------------------------------------
|
|
#include "wx/defs.h"
|
|
|
|
#if wxUSE_DATAOBJ
|
|
|
|
#include "wx/string.h"
|
|
#include "wx/bitmap.h"
|
|
#include "wx/list.h"
|
|
#include "wx/arrstr.h"
|
|
|
|
// ============================================================================
|
|
/*
|
|
Generic data transfer related classes. The class hierarchy is as follows:
|
|
|
|
- wxDataObject-
|
|
/ \
|
|
/ \
|
|
wxDataObjectSimple wxDataObjectComposite
|
|
/ | \
|
|
/ | \
|
|
wxTextDataObject | wxBitmapDataObject
|
|
|
|
|
wxCustomDataObject
|
|
|
|
|
|
|
|
wxImageDataObject
|
|
*/
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDataFormat class is declared in platform-specific headers: it represents
|
|
// a format for data which may be either one of the standard ones (text,
|
|
// bitmap, ...) or a custom one which is then identified by a unique string.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/* the class interface looks like this (pseudo code):
|
|
|
|
class wxDataFormat
|
|
{
|
|
public:
|
|
typedef <integral type> NativeFormat;
|
|
|
|
wxDataFormat(NativeFormat format = wxDF_INVALID);
|
|
wxDataFormat(const wxString& format);
|
|
|
|
wxDataFormat& operator=(NativeFormat format);
|
|
wxDataFormat& operator=(const wxDataFormat& format);
|
|
|
|
bool operator==(NativeFormat format) const;
|
|
bool operator!=(NativeFormat format) const;
|
|
|
|
void SetType(NativeFormat format);
|
|
NativeFormat GetType() const;
|
|
|
|
wxString GetId() const;
|
|
void SetId(const wxString& format);
|
|
};
|
|
|
|
*/
|
|
|
|
#if defined(__WXMSW__)
|
|
#include "wx/msw/ole/dataform.h"
|
|
#elif defined(__WXMOTIF__)
|
|
#include "wx/motif/dataform.h"
|
|
#elif defined(__WXGTK20__)
|
|
#include "wx/gtk/dataform.h"
|
|
#elif defined(__WXGTK__)
|
|
#include "wx/gtk1/dataform.h"
|
|
#elif defined(__WXX11__)
|
|
#include "wx/x11/dataform.h"
|
|
#elif defined(__WXMAC__)
|
|
#include "wx/osx/dataform.h"
|
|
#elif defined(__WXQT__)
|
|
#include "wx/qt/dataform.h"
|
|
#endif
|
|
|
|
// the value for default argument to some functions (corresponds to
|
|
// wxDF_INVALID)
|
|
extern WXDLLIMPEXP_CORE const wxDataFormat& wxFormatInvalid;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDataObject represents a piece of data which knows which formats it
|
|
// supports and knows how to render itself in each of them - GetDataHere(),
|
|
// and how to restore data from the buffer (SetData()).
|
|
//
|
|
// Although this class may be used directly (i.e. custom classes may be
|
|
// derived from it), in many cases it might be simpler to use either
|
|
// wxDataObjectSimple or wxDataObjectComposite classes.
|
|
//
|
|
// A data object may be "read only", i.e. support only GetData() functions or
|
|
// "read-write", i.e. support both GetData() and SetData() (in principle, it
|
|
// might be "write only" too, but this is rare). Moreover, it doesn't have to
|
|
// support the same formats in Get() and Set() directions: for example, a data
|
|
// object containing JPEG image might accept BMPs in GetData() because JPEG
|
|
// image may be easily transformed into BMP but not in SetData(). Accordingly,
|
|
// all methods dealing with formats take an additional "direction" argument
|
|
// which is either SET or GET and which tells the function if the format needs
|
|
// to be supported by SetData() or GetDataHere().
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxDataObjectBase
|
|
{
|
|
public:
|
|
enum Direction
|
|
{
|
|
Get = 0x01, // format is supported by GetDataHere()
|
|
Set = 0x02, // format is supported by SetData()
|
|
Both = 0x03 // format is supported by both (unused currently)
|
|
};
|
|
|
|
// this class is polymorphic, hence it needs a virtual dtor
|
|
virtual ~wxDataObjectBase();
|
|
|
|
// get the best suited format for rendering our data
|
|
virtual wxDataFormat GetPreferredFormat(Direction dir = Get) const = 0;
|
|
|
|
// get the number of formats we support
|
|
virtual size_t GetFormatCount(Direction dir = Get) const = 0;
|
|
|
|
// return all formats in the provided array (of size GetFormatCount())
|
|
virtual void GetAllFormats(wxDataFormat *formats,
|
|
Direction dir = Get) const = 0;
|
|
|
|
// get the (total) size of data for the given format
|
|
virtual size_t GetDataSize(const wxDataFormat& format) const = 0;
|
|
|
|
// copy raw data (in the specified format) to the provided buffer, return
|
|
// true if data copied successfully, false otherwise
|
|
virtual bool GetDataHere(const wxDataFormat& format, void *buf) const = 0;
|
|
|
|
// get data from the buffer of specified length (in the given format),
|
|
// return true if the data was read successfully, false otherwise
|
|
virtual bool SetData(const wxDataFormat& WXUNUSED(format),
|
|
size_t WXUNUSED(len), const void * WXUNUSED(buf))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// returns true if this format is supported
|
|
bool IsSupported(const wxDataFormat& format, Direction dir = Get) const;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// include the platform-specific declarations of wxDataObject
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if defined(__WXMSW__)
|
|
#include "wx/msw/ole/dataobj.h"
|
|
#elif defined(__WXMOTIF__)
|
|
#include "wx/motif/dataobj.h"
|
|
#elif defined(__WXX11__)
|
|
#include "wx/x11/dataobj.h"
|
|
#elif defined(__WXGTK20__)
|
|
#include "wx/gtk/dataobj.h"
|
|
#elif defined(__WXGTK__)
|
|
#include "wx/gtk1/dataobj.h"
|
|
#elif defined(__WXMAC__)
|
|
#include "wx/osx/dataobj.h"
|
|
#elif defined(__WXQT__)
|
|
#include "wx/qt/dataobj.h"
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDataObjectSimple is a wxDataObject which only supports one format (in
|
|
// both Get and Set directions, but you may return false from GetDataHere() or
|
|
// SetData() if one of them is not supported). This is the simplest possible
|
|
// wxDataObject implementation.
|
|
//
|
|
// This is still an "abstract base class" (although it doesn't have any pure
|
|
// virtual functions), to use it you should derive from it and implement
|
|
// GetDataSize(), GetDataHere() and SetData() functions because the base class
|
|
// versions don't do anything - they just return "not implemented".
|
|
//
|
|
// This class should be used when you provide data in only one format (no
|
|
// conversion to/from other formats), either a standard or a custom one.
|
|
// Otherwise, you should use wxDataObjectComposite or wxDataObject directly.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxDataObjectSimple : public wxDataObject
|
|
{
|
|
public:
|
|
// ctor takes the format we support, but it can also be set later with
|
|
// SetFormat()
|
|
wxDataObjectSimple(const wxDataFormat& format = wxFormatInvalid)
|
|
: m_format(format)
|
|
{
|
|
}
|
|
|
|
// get/set the format we support
|
|
const wxDataFormat& GetFormat() const { return m_format; }
|
|
void SetFormat(const wxDataFormat& format) { m_format = format; }
|
|
|
|
// virtual functions to override in derived class (the base class versions
|
|
// just return "not implemented")
|
|
// -----------------------------------------------------------------------
|
|
|
|
// get the size of our data
|
|
virtual size_t GetDataSize() const
|
|
{ return 0; }
|
|
|
|
// copy our data to the buffer
|
|
virtual bool GetDataHere(void *WXUNUSED(buf)) const
|
|
{ return false; }
|
|
|
|
// copy data from buffer to our data
|
|
virtual bool SetData(size_t WXUNUSED(len), const void *WXUNUSED(buf))
|
|
{ return false; }
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
virtual wxDataFormat GetPreferredFormat(wxDataObjectBase::Direction WXUNUSED(dir) = Get) const wxOVERRIDE
|
|
{ return m_format; }
|
|
virtual size_t GetFormatCount(wxDataObjectBase::Direction WXUNUSED(dir) = Get) const wxOVERRIDE
|
|
{ return 1; }
|
|
virtual void GetAllFormats(wxDataFormat *formats,
|
|
wxDataObjectBase::Direction WXUNUSED(dir) = Get) const wxOVERRIDE
|
|
{ *formats = m_format; }
|
|
virtual size_t GetDataSize(const wxDataFormat& WXUNUSED(format)) const wxOVERRIDE
|
|
{ return GetDataSize(); }
|
|
virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
|
|
void *buf) const wxOVERRIDE
|
|
{ return GetDataHere(buf); }
|
|
virtual bool SetData(const wxDataFormat& WXUNUSED(format),
|
|
size_t len, const void *buf) wxOVERRIDE
|
|
{ return SetData(len, buf); }
|
|
|
|
private:
|
|
// the one and only format we support
|
|
wxDataFormat m_format;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxDataObjectSimple);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDataObjectComposite is the simplest way to implement wxDataObject
|
|
// supporting multiple formats. It contains several wxDataObjectSimple and
|
|
// supports all formats supported by any of them.
|
|
//
|
|
// This class shouldn't be (normally) derived from, but may be used directly.
|
|
// If you need more flexibility than what it provides, you should probably use
|
|
// wxDataObject directly.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
WX_DECLARE_EXPORTED_LIST(wxDataObjectSimple, wxSimpleDataObjectList);
|
|
|
|
class WXDLLIMPEXP_CORE wxDataObjectComposite : public wxDataObject
|
|
{
|
|
public:
|
|
// ctor
|
|
wxDataObjectComposite();
|
|
virtual ~wxDataObjectComposite();
|
|
|
|
// add data object (it will be deleted by wxDataObjectComposite, hence it
|
|
// must be allocated on the heap) whose format will become the preferred
|
|
// one if preferred == true
|
|
void Add(wxDataObjectSimple *dataObject, bool preferred = false);
|
|
|
|
// Report the format passed to the SetData method. This should be the
|
|
// format of the data object within the composite that received data from
|
|
// the clipboard or the DnD operation. You can use this method to find
|
|
// out what kind of data object was received.
|
|
wxDataFormat GetReceivedFormat() const;
|
|
|
|
// Returns the pointer to the object which supports this format or NULL.
|
|
// The returned pointer is owned by wxDataObjectComposite and must
|
|
// therefore not be destroyed by the caller.
|
|
wxDataObjectSimple *GetObject(const wxDataFormat& format,
|
|
wxDataObjectBase::Direction dir = Get) const;
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
virtual wxDataFormat GetPreferredFormat(wxDataObjectBase::Direction dir = Get) const wxOVERRIDE;
|
|
virtual size_t GetFormatCount(wxDataObjectBase::Direction dir = Get) const wxOVERRIDE;
|
|
virtual void GetAllFormats(wxDataFormat *formats, wxDataObjectBase::Direction dir = Get) const wxOVERRIDE;
|
|
virtual size_t GetDataSize(const wxDataFormat& format) const wxOVERRIDE;
|
|
virtual bool GetDataHere(const wxDataFormat& format, void *buf) const wxOVERRIDE;
|
|
virtual bool SetData(const wxDataFormat& format, size_t len, const void *buf) wxOVERRIDE;
|
|
#if defined(__WXMSW__)
|
|
virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
|
|
const wxDataFormat& format ) wxOVERRIDE;
|
|
virtual void* SetSizeInBuffer( void* buffer, size_t size,
|
|
const wxDataFormat& format ) wxOVERRIDE;
|
|
virtual size_t GetBufferOffset( const wxDataFormat& format ) wxOVERRIDE;
|
|
#endif
|
|
|
|
private:
|
|
// the list of all (simple) data objects whose formats we support
|
|
wxSimpleDataObjectList m_dataObjects;
|
|
|
|
// the index of the preferred one (0 initially, so by default the first
|
|
// one is the preferred)
|
|
size_t m_preferred;
|
|
|
|
wxDataFormat m_receivedFormat;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxDataObjectComposite);
|
|
};
|
|
|
|
// ============================================================================
|
|
// Standard implementations of wxDataObjectSimple which can be used directly
|
|
// (i.e. without having to derive from them) for standard data type transfers.
|
|
//
|
|
// Note that although all of them can work with provided data, you can also
|
|
// override their virtual GetXXX() functions to only provide data on demand.
|
|
// ============================================================================
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTextDataObject contains text data
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if wxUSE_UNICODE
|
|
#if defined(__WXGTK20__) || defined(__WXX11__) || defined(__WXQT__)
|
|
#define wxNEEDS_UTF8_FOR_TEXT_DATAOBJ
|
|
#elif defined(__WXMAC__)
|
|
#define wxNEEDS_UTF16_FOR_TEXT_DATAOBJ
|
|
#endif
|
|
#endif // wxUSE_UNICODE
|
|
|
|
class WXDLLIMPEXP_CORE wxHTMLDataObject : public wxDataObjectSimple
|
|
{
|
|
public:
|
|
// ctor: you can specify the text here or in SetText(), or override
|
|
// GetText()
|
|
wxHTMLDataObject(const wxString& html = wxEmptyString)
|
|
: wxDataObjectSimple(wxDF_HTML),
|
|
m_html(html)
|
|
{
|
|
}
|
|
|
|
// virtual functions which you may override if you want to provide text on
|
|
// demand only - otherwise, the trivial default versions will be used
|
|
virtual size_t GetLength() const { return m_html.Len() + 1; }
|
|
virtual wxString GetHTML() const { return m_html; }
|
|
virtual void SetHTML(const wxString& html) { m_html = html; }
|
|
|
|
virtual size_t GetDataSize() const wxOVERRIDE;
|
|
virtual bool GetDataHere(void *buf) const wxOVERRIDE;
|
|
virtual bool SetData(size_t len, const void *buf) wxOVERRIDE;
|
|
|
|
// Must provide overloads to avoid hiding them (and warnings about it)
|
|
virtual size_t GetDataSize(const wxDataFormat&) const wxOVERRIDE
|
|
{
|
|
return GetDataSize();
|
|
}
|
|
virtual bool GetDataHere(const wxDataFormat&, void *buf) const wxOVERRIDE
|
|
{
|
|
return GetDataHere(buf);
|
|
}
|
|
virtual bool SetData(const wxDataFormat&, size_t len, const void *buf) wxOVERRIDE
|
|
{
|
|
return SetData(len, buf);
|
|
}
|
|
|
|
private:
|
|
wxString m_html;
|
|
};
|
|
|
|
class WXDLLIMPEXP_CORE wxTextDataObject : public wxDataObjectSimple
|
|
{
|
|
public:
|
|
// ctor: you can specify the text here or in SetText(), or override
|
|
// GetText()
|
|
wxTextDataObject(const wxString& text = wxEmptyString)
|
|
: wxDataObjectSimple(
|
|
#if wxUSE_UNICODE
|
|
wxDF_UNICODETEXT
|
|
#else
|
|
wxDF_TEXT
|
|
#endif
|
|
),
|
|
m_text(text)
|
|
{
|
|
}
|
|
|
|
// virtual functions which you may override if you want to provide text on
|
|
// demand only - otherwise, the trivial default versions will be used
|
|
virtual size_t GetTextLength() const { return m_text.Len() + 1; }
|
|
virtual wxString GetText() const { return m_text; }
|
|
virtual void SetText(const wxString& text) { m_text = text; }
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
|
|
// some platforms have 2 and not 1 format for text data
|
|
#if defined(wxNEEDS_UTF8_FOR_TEXT_DATAOBJ) || defined(wxNEEDS_UTF16_FOR_TEXT_DATAOBJ)
|
|
virtual size_t GetFormatCount(Direction WXUNUSED(dir) = Get) const wxOVERRIDE { return 2; }
|
|
virtual void GetAllFormats(wxDataFormat *formats,
|
|
wxDataObjectBase::Direction WXUNUSED(dir) = Get) const wxOVERRIDE;
|
|
|
|
virtual size_t GetDataSize() const wxOVERRIDE { return GetDataSize(GetPreferredFormat()); }
|
|
virtual bool GetDataHere(void *buf) const wxOVERRIDE { return GetDataHere(GetPreferredFormat(), buf); }
|
|
virtual bool SetData(size_t len, const void *buf) wxOVERRIDE { return SetData(GetPreferredFormat(), len, buf); }
|
|
|
|
size_t GetDataSize(const wxDataFormat& format) const wxOVERRIDE;
|
|
bool GetDataHere(const wxDataFormat& format, void *pBuf) const wxOVERRIDE;
|
|
bool SetData(const wxDataFormat& format, size_t nLen, const void* pBuf) wxOVERRIDE;
|
|
#else // !wxNEEDS_UTF{8,16}_FOR_TEXT_DATAOBJ
|
|
virtual size_t GetDataSize() const wxOVERRIDE;
|
|
virtual bool GetDataHere(void *buf) const wxOVERRIDE;
|
|
virtual bool SetData(size_t len, const void *buf) wxOVERRIDE;
|
|
// Must provide overloads to avoid hiding them (and warnings about it)
|
|
virtual size_t GetDataSize(const wxDataFormat&) const wxOVERRIDE
|
|
{
|
|
return GetDataSize();
|
|
}
|
|
virtual bool GetDataHere(const wxDataFormat&, void *buf) const wxOVERRIDE
|
|
{
|
|
return GetDataHere(buf);
|
|
}
|
|
virtual bool SetData(const wxDataFormat&, size_t len, const void *buf) wxOVERRIDE
|
|
{
|
|
return SetData(len, buf);
|
|
}
|
|
#endif // different wxTextDataObject implementations
|
|
|
|
private:
|
|
#if defined(__WXQT__)
|
|
// Overridden to set text directly instead of extracting byte array
|
|
void QtSetDataSingleFormat(const class QMimeData &mimeData, const wxDataFormat &format) wxOVERRIDE;
|
|
#endif
|
|
|
|
wxString m_text;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxTextDataObject);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxBitmapDataObject contains a bitmap
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxBitmapDataObjectBase : public wxDataObjectSimple
|
|
{
|
|
public:
|
|
// ctor: you can specify the bitmap here or in SetBitmap(), or override
|
|
// GetBitmap()
|
|
wxBitmapDataObjectBase(const wxBitmap& bitmap = wxNullBitmap)
|
|
: wxDataObjectSimple(wxDF_BITMAP), m_bitmap(bitmap)
|
|
{
|
|
}
|
|
|
|
// virtual functions which you may override if you want to provide data on
|
|
// demand only - otherwise, the trivial default versions will be used
|
|
virtual wxBitmap GetBitmap() const { return m_bitmap; }
|
|
virtual void SetBitmap(const wxBitmap& bitmap) { m_bitmap = bitmap; }
|
|
|
|
protected:
|
|
wxBitmap m_bitmap;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxBitmapDataObjectBase);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxFileDataObject contains a list of filenames
|
|
//
|
|
// NB: notice that this is a "write only" object, it can only be filled with
|
|
// data from drag and drop operation.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxFileDataObjectBase : public wxDataObjectSimple
|
|
{
|
|
public:
|
|
// ctor: use AddFile() later to fill the array
|
|
wxFileDataObjectBase() : wxDataObjectSimple(wxDF_FILENAME) { }
|
|
|
|
// get a reference to our array
|
|
const wxArrayString& GetFilenames() const { return m_filenames; }
|
|
|
|
protected:
|
|
wxArrayString m_filenames;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxFileDataObjectBase);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxCustomDataObject contains arbitrary untyped user data.
|
|
//
|
|
// It is understood that this data can be copied bitwise.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxCustomDataObject : public wxDataObjectSimple
|
|
{
|
|
public:
|
|
// if you don't specify the format in the ctor, you can still use
|
|
// SetFormat() later
|
|
wxCustomDataObject(const wxDataFormat& format = wxFormatInvalid);
|
|
|
|
// the dtor calls Free()
|
|
virtual ~wxCustomDataObject();
|
|
|
|
// you can call SetData() to set m_data: it will make a copy of the data
|
|
// you pass - or you can use TakeData() which won't copy anything, but
|
|
// will take ownership of data (i.e. will call Free() on it later)
|
|
void TakeData(size_t size, void *data);
|
|
|
|
// this function is called to allocate "size" bytes of memory from
|
|
// SetData(). The default version uses operator new[].
|
|
virtual void *Alloc(size_t size);
|
|
|
|
// this function is called when the data is freed, you may override it to
|
|
// anything you want (or may be nothing at all). The default version calls
|
|
// operator delete[] on m_data
|
|
virtual void Free();
|
|
|
|
// get data: you may override these functions if you wish to provide data
|
|
// only when it's requested
|
|
virtual size_t GetSize() const { return m_size; }
|
|
virtual void *GetData() const { return m_data; }
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
virtual size_t GetDataSize() const wxOVERRIDE;
|
|
virtual bool GetDataHere(void *buf) const wxOVERRIDE;
|
|
virtual bool SetData(size_t size, const void *buf) wxOVERRIDE;
|
|
// Must provide overloads to avoid hiding them (and warnings about it)
|
|
virtual size_t GetDataSize(const wxDataFormat&) const wxOVERRIDE
|
|
{
|
|
return GetDataSize();
|
|
}
|
|
virtual bool GetDataHere(const wxDataFormat&, void *buf) const wxOVERRIDE
|
|
{
|
|
return GetDataHere(buf);
|
|
}
|
|
virtual bool SetData(const wxDataFormat&, size_t len, const void *buf) wxOVERRIDE
|
|
{
|
|
return SetData(len, buf);
|
|
}
|
|
|
|
private:
|
|
size_t m_size;
|
|
void *m_data;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxCustomDataObject);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxImageDataObject - data object for wxImage
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxImageDataObject : public wxCustomDataObject
|
|
{
|
|
public:
|
|
explicit wxImageDataObject(const wxImage& image = wxNullImage);
|
|
|
|
void SetImage(const wxImage& image);
|
|
wxImage GetImage() const;
|
|
|
|
private:
|
|
wxDECLARE_NO_COPY_CLASS(wxImageDataObject);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// include platform-specific declarations of wxXXXBase classes
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if defined(__WXMSW__)
|
|
#include "wx/msw/ole/dataobj2.h"
|
|
// wxURLDataObject defined in msw/ole/dataobj2.h
|
|
#elif defined(__WXGTK20__)
|
|
#include "wx/gtk/dataobj2.h"
|
|
// wxURLDataObject defined in gtk/dataobj2.h
|
|
|
|
#else
|
|
#if defined(__WXGTK__)
|
|
#include "wx/gtk1/dataobj2.h"
|
|
#elif defined(__WXX11__)
|
|
#include "wx/x11/dataobj2.h"
|
|
#elif defined(__WXMOTIF__)
|
|
#include "wx/motif/dataobj2.h"
|
|
#elif defined(__WXMAC__)
|
|
#include "wx/osx/dataobj2.h"
|
|
#elif defined(__WXQT__)
|
|
#include "wx/qt/dataobj2.h"
|
|
#endif
|
|
|
|
// wxURLDataObject is simply wxTextDataObject with a different name
|
|
class WXDLLIMPEXP_CORE wxURLDataObject : public wxTextDataObject
|
|
{
|
|
public:
|
|
wxURLDataObject(const wxString& url = wxEmptyString)
|
|
: wxTextDataObject(url)
|
|
{
|
|
}
|
|
|
|
wxString GetURL() const { return GetText(); }
|
|
void SetURL(const wxString& url) { SetText(url); }
|
|
};
|
|
#endif
|
|
|
|
#endif // wxUSE_DATAOBJ
|
|
|
|
#endif // _WX_DATAOBJ_H_BASE_
|