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wxGTK compatible clipboard implementation (not OLE clipboard - it will come

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later)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1621 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
1999-02-06 23:25:47 +00:00
parent d79b79b5e8
commit 26f86486b0
5 changed files with 454 additions and 376 deletions
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17
include/wx/gtk/clipbrd.h
View File

@@ -47,32 +47,31 @@ class wxClipboard: public wxObject
DECLARE_DYNAMIC_CLASS(wxClipboard)
public:
wxClipboard();
~wxClipboard();
/* open the clipboard before SetData() and GetData() */
// open the clipboard before SetData() and GetData()
virtual bool Open();
/* close the clipboard after SetData() and GetData() */
// close the clipboard after SetData() and GetData()
virtual void Close();
/* set the clipboard data. all other formats will be deleted. */
// set the clipboard data. all other formats will be deleted.
virtual bool SetData( wxDataObject *data );
/* add to the clipboard data. */
// add to the clipboard data.
virtual bool AddData( wxDataObject *data );
/* ask if data in correct format is available */
// ask if data in correct format is available
virtual bool IsSupported( wxDataObject &data );
/* fill data with data on the clipboard (if available) */
// fill data with data on the clipboard (if available)
virtual bool GetData( wxDataObject &data );
/* clears wxTheClipboard and the system's clipboard if possible */
// clears wxTheClipboard and the system's clipboard if possible
virtual void Clear();
/* implementation */
// implementation
bool m_open;

17
include/wx/gtk1/clipbrd.h
View File

@@ -47,32 +47,31 @@ class wxClipboard: public wxObject
DECLARE_DYNAMIC_CLASS(wxClipboard)
public:
wxClipboard();
~wxClipboard();
/* open the clipboard before SetData() and GetData() */
// open the clipboard before SetData() and GetData()
virtual bool Open();
/* close the clipboard after SetData() and GetData() */
// close the clipboard after SetData() and GetData()
virtual void Close();
/* set the clipboard data. all other formats will be deleted. */
// set the clipboard data. all other formats will be deleted.
virtual bool SetData( wxDataObject *data );
/* add to the clipboard data. */
// add to the clipboard data.
virtual bool AddData( wxDataObject *data );
/* ask if data in correct format is available */
// ask if data in correct format is available
virtual bool IsSupported( wxDataObject &data );
/* fill data with data on the clipboard (if available) */
// fill data with data on the clipboard (if available)
virtual bool GetData( wxDataObject &data );
/* clears wxTheClipboard and the system's clipboard if possible */
// clears wxTheClipboard and the system's clipboard if possible
virtual void Clear();
/* implementation */
// implementation
bool m_open;

52
include/wx/msw/clipbrd.h
View File

@@ -24,18 +24,30 @@
#include "wx/list.h"
#include "wx/module.h"
// These functions superceded by wxClipboard, but retained in order to implement
// wxClipboard, and for compatibility.
WXDLLEXPORT bool wxOpenClipboard(void);
WXDLLEXPORT bool wxClipboardOpen(void);
WXDLLEXPORT bool wxCloseClipboard(void);
WXDLLEXPORT bool wxEmptyClipboard(void);
// These functions superceded by wxClipboard, but retained in order to
// implement wxClipboard, and for compatibility.
// open/close the clipboard
WXDLLEXPORT bool wxOpenClipboard();
WXDLLEXPORT bool wxIsClipboardOpened();
#define wxClipboardOpen wxIsClipboardOpened
WXDLLEXPORT bool wxCloseClipboard();
// get/set data
WXDLLEXPORT bool wxEmptyClipboard();
WXDLLEXPORT bool wxSetClipboardData(wxDataFormat dataFormat,
const void *data,
int width = 0, int height = 0);
WXDLLEXPORT void* wxGetClipboardData(wxDataFormat dataFormat,
long *len = NULL);
// clipboard formats
WXDLLEXPORT bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat);
WXDLLEXPORT bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width = 0, int height = 0);
WXDLLEXPORT wxObject* wxGetClipboardData(wxDataFormat dataFormat, long *len = NULL);
WXDLLEXPORT wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat);
WXDLLEXPORT int wxRegisterClipboardFormat(char *formatName);
WXDLLEXPORT bool wxGetClipboardFormatName(wxDataFormat dataFormat, char *formatName, int maxCount);
WXDLLEXPORT bool wxGetClipboardFormatName(wxDataFormat dataFormat,
char *formatName,
int maxCount);
//-----------------------------------------------------------------------------
// wxClipboard
@@ -47,7 +59,6 @@ class WXDLLEXPORT wxClipboard: public wxObject
DECLARE_DYNAMIC_CLASS(wxClipboard)
public:
wxClipboard();
~wxClipboard();
@@ -57,30 +68,28 @@ public:
// close the clipboard after SetData() and GetData()
virtual void Close();
// can be called several times
// set the clipboard data. all other formats will be deleted.
virtual bool SetData( wxDataObject *data );
// format available on the clipboard ?
// supply ID if private format, the same as wxPrivateDataObject::SetId()
virtual bool IsSupportedFormat( wxDataFormat format, const wxString &id = wxEmptyString );
// add to the clipboard data.
virtual bool AddData( wxDataObject *data );
// ask if data in correct format is available
virtual bool IsSupported( wxDataFormat format );
// fill data with data on the clipboard (if available)
virtual bool GetData( wxDataObject *data );
// clears wxTheClipboard and the system's clipboard if possible
virtual void Clear();
// implementation
bool m_open;
wxList m_data;
};
/* The clipboard */
// The global clipboard object
WXDLLEXPORT_DATA(extern wxClipboard*) wxTheClipboard;
//-----------------------------------------------------------------------------
// wxClipboardModule
// wxClipboardModule: module responsible for initializing the global clipboard
// object
//-----------------------------------------------------------------------------
class wxClipboardModule : public wxModule
@@ -89,6 +98,7 @@ class wxClipboardModule: public wxModule
public:
wxClipboardModule() { }
bool OnInit();
void OnExit();
};

2
include/wx/msw/ole/dataobj.h
View File

@@ -87,7 +87,7 @@ class WXDLLEXPORT wxTextDataObject : public wxDataObject
{
public:
// ctors
wxTextDataObject();
wxTextDataObject() { }
wxTextDataObject(const wxString& strText) : m_strText(strText) { }
void Init(const wxString& strText) { m_strText = strText; }

310
src/msw/clipbrd.cpp
View File

@@ -9,6 +9,14 @@
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "clipbrd.h"
#endif
@@ -43,8 +51,6 @@
#include <windows.h>
HICON myIcon;
#include "wx/msw/private.h"
#include "wx/msw/dib.h"
@@ -56,55 +62,95 @@ HICON myIcon;
#include <string.h>
bool wxClipboardIsOpen = FALSE;
// ===========================================================================
// implementation
// ===========================================================================
bool wxOpenClipboard(void)
// ---------------------------------------------------------------------------
// old-style clipboard functions using Windows API
// ---------------------------------------------------------------------------
static bool gs_wxClipboardIsOpen = FALSE;
bool wxOpenClipboard()
{
if (wxTheApp->GetTopWindow() && !wxClipboardIsOpen)
wxCHECK_MSG( !gs_wxClipboardIsOpen, TRUE, "clipboard already opened." );
wxWindow *win = wxTheApp->GetTopWindow();
if ( win )
{
wxClipboardIsOpen = (::OpenClipboard((HWND) wxTheApp->GetTopWindow()->GetHWND()) != 0);
return wxClipboardIsOpen;
gs_wxClipboardIsOpen = ::OpenClipboard((HWND)win->GetHWND()) != 0;
if ( !gs_wxClipboardIsOpen )
wxLogSysError(_("Failed to open the clipboard."));
return gs_wxClipboardIsOpen;
}
else
{
wxLogDebug("Can not open clipboard without a main window,");
return FALSE;
}
else return FALSE;
}
bool wxCloseClipboard(void)
bool wxCloseClipboard()
{
if (wxClipboardIsOpen)
wxCHECK_MSG( gs_wxClipboardIsOpen, FALSE, "clipboard is not opened" );
gs_wxClipboardIsOpen = FALSE;
if ( ::CloseClipboard() == 0 )
{
wxClipboardIsOpen = FALSE;
}
return (::CloseClipboard() != 0);
wxLogSysError(_("Failed to close the clipboard."));
return FALSE;
}
bool wxEmptyClipboard(void)
{
return (::EmptyClipboard() != 0);
return TRUE;
}
bool wxClipboardOpen(void)
bool wxEmptyClipboard()
{
return wxClipboardIsOpen;
if ( ::EmptyClipboard() == 0 )
{
wxLogSysError(_("Failed to empty the clipboard."));
return FALSE;
}
return TRUE;
}
bool wxIsClipboardOpened()
{
return gs_wxClipboardIsOpen;
}
bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat)
{
return (::IsClipboardFormatAvailable(dataFormat) != 0);
return ::IsClipboardFormatAvailable(dataFormat) != 0;
}
bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width, int height)
bool wxSetClipboardData(wxDataFormat dataFormat,
const void *data,
int width, int height)
{
HANDLE handle = 0; // return value of SetClipboardData
switch (dataFormat)
{
case wxDF_BITMAP:
{
wxBitmap *wxBM = (wxBitmap *)obj;
wxBitmap *bitmap = (wxBitmap *)data;
HDC hdcMem = CreateCompatibleDC((HDC) NULL);
HDC hdcSrc = CreateCompatibleDC((HDC) NULL);
HBITMAP old = (HBITMAP) ::SelectObject(hdcSrc, (HBITMAP) wxBM->GetHBITMAP());
HBITMAP old = (HBITMAP)
::SelectObject(hdcSrc, (HBITMAP)bitmap->GetHBITMAP());
HBITMAP hBitmap = CreateCompatibleBitmap(hdcSrc,
wxBM->GetWidth(), wxBM->GetHeight());
bitmap->GetWidth(),
bitmap->GetHeight());
if (!hBitmap)
{
SelectObject(hdcSrc, old);
@@ -112,39 +158,40 @@ bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width, int h
DeleteDC(hdcSrc);
return FALSE;
}
HBITMAP old1 = (HBITMAP) SelectObject(hdcMem, hBitmap);
BitBlt(hdcMem, 0, 0, wxBM->GetWidth(), wxBM->GetHeight(),
BitBlt(hdcMem, 0, 0, bitmap->GetWidth(), bitmap->GetHeight(),
hdcSrc, 0, 0, SRCCOPY);
// Select new bitmap out of memory DC
SelectObject(hdcMem, old1);
// Set the data
bool success = (bool)(::SetClipboardData(CF_BITMAP, hBitmap) != 0);
handle = ::SetClipboardData(CF_BITMAP, hBitmap);
// Clean up
SelectObject(hdcSrc, old);
DeleteDC(hdcSrc);
DeleteDC(hdcMem);
return success;
break;
}
case wxDF_DIB:
{
#if wxUSE_IMAGE_LOADING_IN_MSW
HBITMAP hBitmap=(HBITMAP) ((wxBitmap *)obj)->GetHBITMAP();
HANDLE hDIB=BitmapToDIB(hBitmap,(HPALETTE) NULL); // NULL==uses system palette
bool success = (::SetClipboardData(CF_DIB,hDIB) != 0);
#else
bool success=FALSE;
wxBitmap *bitmap = (wxBitmap *)data;
HBITMAP hBitmap = (HBITMAP)bitmap->GetHBITMAP();
// NULL palette means to use the system one
HANDLE hDIB = BitmapToDIB(hBitmap, (HPALETTE)NULL);
handle = SetClipboardData(CF_DIB, hDIB);
#endif
return success;
break;
}
#if wxUSE_METAFILE
case wxDF_METAFILE:
{
wxMetafile *wxMF = (wxMetafile *)obj;
wxMetafile *wxMF = (wxMetafile *)data;
HANDLE data = GlobalAlloc(GHND, sizeof(METAFILEPICT) + 1);
#ifdef __WINDOWS_386__
METAFILEPICT *mf = (METAFILEPICT *)MK_FP32(GlobalLock(data));
@@ -159,7 +206,7 @@ bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width, int h
GlobalUnlock(data);
wxMF->SetHMETAFILE((WXHANDLE) NULL);
return (SetClipboardData(CF_METAFILEPICT, data) != 0);
handle = SetClipboardData(CF_METAFILEPICT, data);
break;
}
#endif
@@ -167,25 +214,26 @@ bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width, int h
case CF_DIF:
case CF_TIFF:
case CF_PALETTE:
{
return FALSE;
break;
}
case wxDF_OEMTEXT:
dataFormat = wxDF_TEXT;
case wxDF_TEXT:
width = strlen((char *)obj) + 1;
height = 1;
default:
{
char *s = (char *)obj;
DWORD l;
l = (width * height);
HANDLE hGlobalMemory = GlobalAlloc(GHND, l);
if (!hGlobalMemory)
wxLogError(_("Unsupported clipboard format."));
return FALSE;
}
case wxDF_OEMTEXT:
dataFormat = wxDF_TEXT;
// fall through
case wxDF_TEXT:
{
char *s = (char *)data;
width = strlen(s) + 1;
height = 1;
DWORD l = (width * height);
HANDLE hGlobalMemory = GlobalAlloc(GHND, l);
if ( hGlobalMemory )
{
#ifdef __WINDOWS_386__
LPSTR lpGlobalMemory = (LPSTR)MK_FP32(GlobalLock(hGlobalMemory));
#else
@@ -201,16 +249,27 @@ bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, int width, int h
#endif
GlobalUnlock(hGlobalMemory);
HANDLE success = SetClipboardData(dataFormat, hGlobalMemory);
return (success != 0);
}
handle = SetClipboardData(dataFormat, hGlobalMemory);
break;
}
}
if ( handle == 0 )
{
wxLogSysError(_("Failed to set clipboard data."));
return FALSE;
}
wxObject *wxGetClipboardData(wxDataFormat dataFormat, long *len)
return TRUE;
}
void *wxGetClipboardData(wxDataFormat dataFormat, long *len)
{
void *retval = NULL;
switch ( dataFormat )
{
case wxDF_BITMAP:
@@ -218,7 +277,7 @@ wxObject *wxGetClipboardData(wxDataFormat dataFormat, long *len)
BITMAP bm;
HBITMAP hBitmap = (HBITMAP) GetClipboardData(CF_BITMAP);
if (!hBitmap)
return NULL;
break;
HDC hdcMem = CreateCompatibleDC((HDC) NULL);
HDC hdcSrc = CreateCompatibleDC((HDC) NULL);
@@ -233,7 +292,7 @@ wxObject *wxGetClipboardData(wxDataFormat dataFormat, long *len)
SelectObject(hdcSrc, old);
DeleteDC(hdcMem);
DeleteDC(hdcSrc);
return NULL;
break;
}
HBITMAP old1 = (HBITMAP) SelectObject(hdcMem, hNewBitmap);
@@ -255,57 +314,67 @@ wxObject *wxGetClipboardData(wxDataFormat dataFormat, long *len)
wxBM->SetHeight(bm.bmHeight);
wxBM->SetDepth(bm.bmPlanes);
wxBM->SetOk(TRUE);
return (wxObject *)wxBM;
retval = wxBM;
break;
}
case wxDF_METAFILE:
case CF_SYLK:
case CF_DIF:
case CF_TIFF:
case CF_PALETTE:
case wxDF_DIB:
{
return FALSE;
break;
}
case wxDF_OEMTEXT:
dataFormat = wxDF_TEXT;
case wxDF_TEXT:
default:
{
HANDLE hGlobalMemory = GetClipboardData(dataFormat);
if (!hGlobalMemory)
return NULL;
wxLogError(_("Unsupported clipboard format."));
return FALSE;
}
int hsize = (int)GlobalSize(hGlobalMemory);
case wxDF_OEMTEXT:
dataFormat = wxDF_TEXT;
// fall through
case wxDF_TEXT:
{
HANDLE hGlobalMemory = ::GetClipboardData(dataFormat);
if (!hGlobalMemory)
break;
DWORD hsize = ::GlobalSize(hGlobalMemory);
if (len)
*len = hsize;
char *s = new char[hsize];
if (!s)
return NULL;
break;
#ifdef __WINDOWS_386__
LPSTR lpGlobalMemory = (LPSTR)MK_FP32(GlobalLock(hGlobalMemory));
#else
LPSTR lpGlobalMemory = (LPSTR)GlobalLock(hGlobalMemory);
LPSTR lpGlobalMemory = (LPSTR)::GlobalLock(hGlobalMemory);
#endif
#ifdef __WIN32__
memcpy(s, lpGlobalMemory, GlobalSize(hGlobalMemory));
memcpy(s, lpGlobalMemory, hsize);
#elif __WATCOMC__ && defined(__WINDOWS_386__)
memcpy(s, lpGlobalMemory, GlobalSize(hGlobalMemory));
memcpy(s, lpGlobalMemory, hsize);
#else
hmemcpy(s, lpGlobalMemory, GlobalSize(hGlobalMemory));
hmemcpy(s, lpGlobalMemory, hsize);
#endif
GlobalUnlock(hGlobalMemory);
::GlobalUnlock(hGlobalMemory);
return (wxObject *)s;
retval = s;
break;
}
}
return NULL;
if ( !retval )
{
wxLogSysError(_("Failed to retrieve data from the clipboard."));
}
return retval;
}
wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat)
@@ -318,14 +387,16 @@ int wxRegisterClipboardFormat(char *formatName)
return ::RegisterClipboardFormat(formatName);
}
bool wxGetClipboardFormatName(wxDataFormat dataFormat, char *formatName, int maxCount)
bool wxGetClipboardFormatName(wxDataFormat dataFormat,
char *formatName,
int maxCount)
{
return (::GetClipboardFormatName((int) dataFormat, formatName, maxCount) > 0);
return ::GetClipboardFormatName((int)dataFormat, formatName, maxCount) > 0;
}
//-----------------------------------------------------------------------------
// ---------------------------------------------------------------------------
// wxClipboard
//-----------------------------------------------------------------------------
// ---------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)
@@ -333,7 +404,6 @@ wxClipboard* wxTheClipboard = (wxClipboard*) NULL;
wxClipboard::wxClipboard()
{
m_open = FALSE;
}
wxClipboard::~wxClipboard()
@@ -343,65 +413,68 @@ wxClipboard::~wxClipboard()
void wxClipboard::Clear()
{
#if wxUSE_DRAG_AND_DROP
wxNode* node = m_data.First();
while (node)
{
wxDataObject* data = (wxDataObject*) node->Data();
delete data;
node = node->Next();
}
m_data.Clear();
#endif
}
bool wxClipboard::Open()
{
wxCHECK_MSG( !m_open, FALSE, "clipboard already open" );
m_open = TRUE;
return wxOpenClipboard();
}
bool wxClipboard::SetData( wxDataObject *data )
{
#if wxUSE_DRAG_AND_DROP
wxCHECK_MSG( data, FALSE, "data is invalid" );
wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
(void)wxEmptyClipboard();
switch (data->GetFormat())
if ( data )
return AddData(data);
else
return TRUE;
}
bool wxClipboard::AddData( wxDataObject *data )
{
wxCHECK_MSG( data, FALSE, "data is invalid" );
#if wxUSE_DRAG_AND_DROP
wxCHECK_MSG( wxIsClipboardOpened(), FALSE, "clipboard not open" );
wxDataFormat format = data->GetFormat();
switch ( format )
{
case wxDF_TEXT:
case wxDF_OEMTEXT:
{
wxTextDataObject* textDataObject = (wxTextDataObject*) data;
wxString str(textDataObject->GetText());
return wxSetClipboardData(data->GetFormat(), (wxObject*) (const char*) str);
break;
return wxSetClipboardData(format, str.c_str());
}
case wxDF_BITMAP:
case wxDF_DIB:
{
wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject*) data;
wxBitmap bitmap(bitmapDataObject->GetBitmap());
return wxSetClipboardData(data->GetFormat(), &bitmap);
break;
}
#if wxUSE_METAFILE
case wxDF_METAFILE:
{
wxMetafileDataObject* metaFileDataObject = (wxMetafileDataObject*) data;
wxMetafileDataObject* metaFileDataObject =
(wxMetafileDataObject*) data;
wxMetafile metaFile = metaFileDataObject->GetMetafile();
return wxSetClipboardData(wxDF_METAFILE, & metaFile, metaFileDataObject->GetWidth(), metaFileDataObject->GetHeight());
break;
return wxSetClipboardData(wxDF_METAFILE, &metaFile,
metaFileDataObject->GetWidth(),
metaFileDataObject->GetHeight());
}
#endif
#endif // wxUSE_METAFILE
default:
{
wxLogError(_("Can not put data in format '%s' on clipboard."),
wxDataObject::GetFormatName(format));
return FALSE;
}
}
return FALSE;
#else
@@ -411,29 +484,27 @@ bool wxClipboard::SetData( wxDataObject *data )
void wxClipboard::Close()
{
wxCHECK_RET( m_open, "clipboard not open" );
m_open = FALSE;
wxCloseClipboard();
}
bool wxClipboard::IsSupportedFormat( wxDataFormat format, const wxString& WXUNUSED(id) )
bool wxClipboard::IsSupported( wxDataFormat format )
{
return wxIsClipboardFormatAvailable(format);
}
bool wxClipboard::GetData( wxDataObject *data )
{
wxCHECK_MSG( m_open, FALSE, "clipboard not open" );
wxCHECK_MSG( wxIsClipboardOpened(), FALSE, "clipboard not open" );
#if wxUSE_DRAG_AND_DROP
switch (data->GetFormat())
wxDataFormat format = data->GetFormat();
switch ( format )
{
case wxDF_TEXT:
case wxDF_OEMTEXT:
{
wxTextDataObject* textDataObject = (wxTextDataObject*) data;
char* s = (char*) wxGetClipboardData(data->GetFormat());
char* s = (char*) wxGetClipboardData(format);
if ( s )
{
textDataObject->SetText(s);
@@ -442,8 +513,8 @@ bool wxClipboard::GetData( wxDataObject *data )
}
else
return FALSE;
break;
}
case wxDF_BITMAP:
case wxDF_DIB:
{
@@ -457,7 +528,6 @@ bool wxClipboard::GetData( wxDataObject *data )
}
else
return FALSE;
break;
}
#if wxUSE_METAFILE
case wxDF_METAFILE:
@@ -472,16 +542,14 @@ bool wxClipboard::GetData( wxDataObject *data )
}
else
return FALSE;
break;
}
#endif
default:
{
wxLogError(_("Can not get data in format '%s' from clipboard."),
wxDataObject::GetFormatName(format));
return FALSE;
}
}
return FALSE;
#else
return FALSE;
#endif
@@ -506,5 +574,7 @@ void wxClipboardModule::OnExit()
wxTheClipboard = (wxClipboard*) NULL;
}
#else
#error "Please turn wxUSE_CLIPBOARD on to compile this file."
#endif // wxUSE_CLIPBOARD