X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4bb6408c2631988fab9925014c6619358bf867de..8f2ee25db4652f96f28bc8f8370bebc974e533ff:/src/motif/clipbrd.cpp diff --git a/src/motif/clipbrd.cpp b/src/motif/clipbrd.cpp index e22f9f8349..4af95a45ad 100644 --- a/src/motif/clipbrd.cpp +++ b/src/motif/clipbrd.cpp @@ -2,236 +2,483 @@ // Name: clipbrd.cpp // Purpose: Clipboard functionality // Author: Julian Smart -// Modified by: +// Modified by: Mattia Barbon (added support for generic wxDataObjects) // Created: 17/09/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation #pragma implementation "clipbrd.h" #endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + +#ifdef __VMS +#include "wx/vms_x_fix.h" +#define XtWindow XTWINDOW +#define XtScreen XTSCREEN +#define XtParent XTPARENT +#define XtIsRealized XTISREALIZED +#define XtDisplay XTDISPLAY +#endif + +#include "wx/defs.h" + +#if wxUSE_CLIPBOARD + #include "wx/app.h" -#include "wx/frame.h" #include "wx/bitmap.h" #include "wx/utils.h" -#include "wx/metafile.h" #include "wx/clipbrd.h" +#include "wx/dataobj.h" +#include "wx/ptr_scpd.h" -#include +#ifdef __VMS__ +#pragma message disable nosimpint -#if !USE_SHARED_LIBRARY -IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject) -IMPLEMENT_ABSTRACT_CLASS(wxClipboardClient, wxObject) +#endif +#include +#include +#ifdef __VMS__ +#pragma message enable nosimpint #endif +#include "wx/motif/private.h" + bool wxOpenClipboard() { - // TODO - return FALSE; + return wxTheClipboard->Open(); } bool wxCloseClipboard() { - // TODO - return FALSE; + wxTheClipboard->Close(); + + return true; } bool wxEmptyClipboard() { - // TODO - return FALSE; + wxTheClipboard->Clear(); + return true; } bool wxClipboardOpen() { - // TODO - return FALSE; + return wxTheClipboard->IsOpened(); } -bool wxIsClipboardFormatAvailable(int dataFormat) +bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat) { - // TODO - return FALSE; + return wxTheClipboard->IsSupported( dataFormat ); } -bool wxSetClipboardData(int dataFormat, wxObject *obj, int width, int height) +bool wxSetClipboardData(wxDataFormat dataFormat, wxObject *obj, + int WXUNUSED(width), int WXUNUSED(height)) { - // TODO - return FALSE; + wxDataObject* dobj = NULL; + + if( dataFormat == wxDF_TEXT ) + { + wxChar* data = (wxChar*)obj; + dobj = new wxTextDataObject( data ); + } + else if( dataFormat = wxDF_BITMAP ) + { + wxBitmap* data = (wxBitmap*)obj; + dobj = new wxBitmapDataObject( *data ); + } + + if( !dobj ) + return false; + + return wxTheClipboard->SetData( dobj ); } -wxObject *wxGetClipboardData(int dataFormat, long *len) +wxObject *wxGetClipboardData(wxDataFormat dataFormat, long *len) { - // TODO - return NULL; + wxDataObject* dobj = NULL; + wxTextDataObject* tobj = NULL; + wxBitmapDataObject* bobj = NULL; + + if( dataFormat == wxDF_TEXT ) + { + dobj = tobj = new wxTextDataObject; + } + else if( dataFormat = wxDF_BITMAP ) + { + dobj = bobj = new wxBitmapDataObject; + } + + if( !dobj || !wxTheClipboard->GetData( *dobj ) ) + return NULL; + + if( tobj ) + { + wxString text = tobj->GetText(); + wxChar* buf = new wxChar[text.length() + 1]; + + if( len ) *len = text.length(); + return (wxObject*)wxStrcpy( buf, text.c_str() ); + } + else if( bobj ) + { + if( len ) *len = 0; + return new wxBitmap( bobj->GetBitmap() ); + } + + return NULL; // just in case... } -int wxEnumClipboardFormats(int dataFormat) +wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat) { - // TODO - return 0; + // Only wxDF_TEXT supported + if (dataFormat == wxDF_TEXT) + return wxDF_TEXT; + else + return wxDF_INVALID; } -int wxRegisterClipboardFormat(char *formatName) +wxDataFormat wxRegisterClipboardFormat(char *WXUNUSED(formatName)) { - // TODO - return 0; + // Not supported + return wxDF_INVALID; } -bool wxGetClipboardFormatName(int dataFormat, char *formatName, int maxCount) +bool wxGetClipboardFormatName(wxDataFormat dataFormat, char *formatName, + int maxCount) { - // TODO - return FALSE; -} + wxStrncpy( formatName, dataFormat.GetId().c_str(), maxCount ); -/* - * Generalized clipboard implementation by Matthew Flatt - */ + return true; +} -wxClipboard *wxTheClipboard = NULL; +//----------------------------------------------------------------------------- +// wxClipboard +//----------------------------------------------------------------------------- -void wxInitClipboard() +struct wxDataIdToDataObject { - if (!wxTheClipboard) - wxTheClipboard = new wxClipboard; -} + wxDataIdToDataObject( wxDataObject* o, long d, size_t s ) + : object( o ), size( s ), dataId( d ) { } + + wxDataObject* object; + size_t size; + long dataId; +}; + +#include "wx/listimpl.cpp" + +WX_DEFINE_LIST(wxDataObjectList); +WX_DEFINE_LIST(wxDataIdToDataObjectList); + +#if wxCHECK_LESSTIF() +static void wxClipboardCallback( Widget widget, int* data_id, + int* priv, int* reason ); +#else +static void wxClipboardCallback( Widget widget, long* data_id, + long* priv, int* reason ); +#endif + +IMPLEMENT_DYNAMIC_CLASS(wxClipboard,wxObject) wxClipboard::wxClipboard() { - clipOwner = NULL; - cbString = NULL; + m_open = false; } wxClipboard::~wxClipboard() { - if (clipOwner) - clipOwner->BeingReplaced(); - if (cbString) - delete[] cbString; + Clear(); } -static int FormatStringToID(char *str) +void wxClipboard::Clear() { - if (!strcmp(str, "TEXT")) - return wxDF_TEXT; + wxDataObjectList::compatibility_iterator node = m_data.GetFirst(); + while (node) + { + delete node->GetData(); + node = node->GetNext(); + } + m_data.Clear(); - return wxRegisterClipboardFormat(str); + for( wxDataIdToDataObjectList::compatibility_iterator node2 = m_idToObject.GetFirst(); + node2; node2 = node2->GetNext() ) + delete node->GetData(); + m_idToObject.Clear(); } -void wxClipboard::SetClipboardClient(wxClipboardClient *client, long time) +bool wxClipboard::Open() { - bool got_selection; - - if (clipOwner) - clipOwner->BeingReplaced(); - clipOwner = client; - if (cbString) { - delete[] cbString; - cbString = NULL; - } - - if (wxOpenClipboard()) { - char **formats, *data; - int i; - int ftype; - long size; - - formats = clipOwner->formats.ListToArray(FALSE); - for (i = clipOwner->formats.Number(); i--; ) { - ftype = FormatStringToID(formats[i]); - data = clipOwner->GetData(formats[i], &size); - if (!wxSetClipboardData(ftype, (wxObject *)data, size, 1)) { - got_selection = FALSE; - break; - } - } - - if (i < 0) - got_selection = wxCloseClipboard(); - } else - got_selection = FALSE; + wxCHECK_MSG( !m_open, false, "clipboard already open" ); - got_selection = FALSE; // Assume another process takes over + m_open = true; - if (!got_selection) { - clipOwner->BeingReplaced(); - clipOwner = NULL; - } + return true; } -wxClipboardClient *wxClipboard::GetClipboardClient() +bool wxClipboard::SetData( wxDataObject *data ) { - return clipOwner; + wxCHECK_MSG( data, false, "data is invalid" ); + wxCHECK_MSG( m_open, false, "clipboard not open" ); + + Clear(); + + return AddData( data ); } -void wxClipboard::SetClipboardString(char *str, long time) +wxDECLARE_SCOPED_ARRAY( wxDataFormat, wxDataFormatScopedArray ); +wxDEFINE_SCOPED_ARRAY( wxDataFormat, wxDataFormatScopedArray ); + +#if wxCHECK_LESSTIF() +void wxClipboardCallback( Widget xwidget, int* data_id, + int* priv, int* reason ) +#else +void wxClipboardCallback( Widget xwidget, long* data_id, + long* priv, int* reason ) +#endif { - bool got_selection; + Display* xdisplay = XtDisplay( xwidget ); + Window xwindow = XtWindow( xwidget ); + wxDataObject* dobj = NULL; + size_t size = 0; + + for( wxDataIdToDataObjectList::compatibility_iterator node2 = + wxTheClipboard->m_idToObject.GetFirst(); + node2; node2 = node2->GetNext() ) + { + wxDataIdToDataObject* dido = node2->GetData(); + if( dido->dataId == *data_id ) + { + dobj = dido->object; + size = dido->size; + break; + } + } - if (clipOwner) { - clipOwner->BeingReplaced(); - clipOwner = NULL; - } - if (cbString) - delete[] cbString; + if( !dobj ) return; - cbString = str; + wxCharBuffer buffer(size); + size_t count = dobj->GetFormatCount( wxDataObject::Get ); + wxDataFormatScopedArray dfarr( new wxDataFormat[count] ); + dobj->GetAllFormats( dfarr.get(), wxDataObject::Get ); - if (wxOpenClipboard()) { - if (!wxSetClipboardData(wxDF_TEXT, (wxObject *)str)) - got_selection = FALSE; - else - got_selection = wxCloseClipboard(); - } else - got_selection = FALSE; + if( !dobj->GetDataHere( dfarr[*priv], buffer.data() ) ) + return; - got_selection = FALSE; // Assume another process takes over + while( XmClipboardCopyByName( xdisplay, xwindow, *data_id, + buffer.data(), size, 0 ) + == XmClipboardLocked ); +} - if (!got_selection) { - delete[] cbString; - cbString = NULL; - } +bool wxClipboard::AddData( wxDataObject *data ) +{ + wxCHECK_MSG( data, false, "data is invalid" ); + wxCHECK_MSG( m_open, false, "clipboard not open" ); + + m_data.Append( data ); + + Display* xdisplay = wxGlobalDisplay(); + Widget xwidget = (Widget)wxTheApp->GetTopLevelRealizedWidget(); + Window xwindow = XtWindow( xwidget ); + wxXmString label( wxTheApp->GetAppName() ); + Time timestamp = XtLastTimestampProcessed( xdisplay ); + long itemId; + + int retval; + + while( ( retval = XmClipboardStartCopy( xdisplay, xwindow, label(), + timestamp, xwidget, + wxClipboardCallback, + &itemId ) ) + == XmClipboardLocked ); + if( retval != XmClipboardSuccess ) + return false; + + size_t count = data->GetFormatCount( wxDataObject::Get ); + wxDataFormatScopedArray dfarr( new wxDataFormat[count] ); + data->GetAllFormats( dfarr.get(), wxDataObject::Get ); + + for( size_t i = 0; i < count; ++i ) + { + size_t size = data->GetDataSize( dfarr[i] ); + long data_id; + wxString id = dfarr[i].GetId(); + + while( ( retval = XmClipboardCopy( xdisplay, xwindow, itemId, + wxConstCast(id.c_str(), char), + NULL, size, i, &data_id ) ) + == XmClipboardLocked ); + + m_idToObject.Append( new wxDataIdToDataObject( data, data_id, size ) ); + } + + while( XmClipboardEndCopy( xdisplay, xwindow, itemId ) + == XmClipboardLocked ); + + return true; +} + +void wxClipboard::Close() +{ + wxCHECK_RET( m_open, "clipboard not open" ); + + m_open = false; } -char *wxClipboard::GetClipboardString(long time) +bool wxClipboard::IsSupported(const wxDataFormat& format) { - char *str; - long length; + Display* xdisplay = wxGlobalDisplay(); + Window xwindow = XtWindow( (Widget)wxTheApp->GetTopLevelRealizedWidget() ); + bool isSupported = false; + int retval, count; + unsigned long max_name_length; + wxString id = format.GetId(); + + while( ( retval = XmClipboardLock( xdisplay, xwindow ) ) + == XmClipboardLocked ); + if( retval != XmClipboardSuccess ) + return false; + + if( XmClipboardInquireCount( xdisplay, xwindow, &count, &max_name_length ) + == XmClipboardSuccess ) + { + wxCharBuffer buf( max_name_length + 1 ); + unsigned long copied; + + for( int i = 0; i < count; ++i ) + { + if( XmClipboardInquireFormat( xdisplay, xwindow, i + 1, + (XtPointer)buf.data(), + max_name_length, &copied ) + != XmClipboardSuccess ) + continue; + + buf.data()[copied] = '\0'; + + if( buf == id ) + { + isSupported = true; + break; + } + } + } - str = GetClipboardData("TEXT", &length, time); - if (!str) { - str = new char[1]; - *str = 0; - } + XmClipboardUnlock( xdisplay, xwindow, False ); - return str; + return isSupported; } -char *wxClipboard::GetClipboardData(char *format, long *length, long time) +class wxClipboardEndRetrieve { - if (clipOwner) { - if (clipOwner->formats.Member(format)) - return clipOwner->GetData(format, length); - else - return NULL; - } else if (cbString) { - if (!strcmp(format, "TEXT")) - return copystring(cbString); - else - return NULL; - } else { - if (wxOpenClipboard()) { - receivedString = (char *)wxGetClipboardData(FormatStringToID(format), - length); - wxCloseClipboard(); - } else - receivedString = NULL; +public: + wxClipboardEndRetrieve( Display* display, Window window ) + : m_display( display ), m_window( window ) { } + ~wxClipboardEndRetrieve() + { + while( XmClipboardEndRetrieve( m_display, m_window ) + == XmClipboardLocked ); + } +private: + Display* m_display; + Window m_window; +}; + +bool wxClipboard::GetData( wxDataObject& data ) +{ + wxCHECK_MSG( m_open, false, "clipboard not open" ); + + Display* xdisplay = wxGlobalDisplay(); + Window xwindow = XtWindow( (Widget)wxTheApp->GetTopLevelRealizedWidget() ); + Time timestamp = XtLastTimestampProcessed( xdisplay ); + + wxDataFormat chosenFormat; + int retval; + + /////////////////////////////////////////////////////////////////////////// + // determine if the cliboard holds any format we like + /////////////////////////////////////////////////////////////////////////// + while( ( retval = XmClipboardStartRetrieve( xdisplay, xwindow, + timestamp ) ) + == XmClipboardLocked ); + if( retval != XmClipboardSuccess ) + return false; + + wxClipboardEndRetrieve endRetrieve( xdisplay, xwindow ); + + int count; + unsigned long max_name_length; + size_t dfcount = data.GetFormatCount( wxDataObject::Set ); + wxDataFormatScopedArray dfarr( new wxDataFormat[dfcount] ); + data.GetAllFormats( dfarr.get(), wxDataObject::Set ); + + if( XmClipboardInquireCount( xdisplay, xwindow, &count, &max_name_length ) + == XmClipboardSuccess ) + { + wxCharBuffer buf( max_name_length + 1 ); + unsigned long copied; + + for( int i = 0; i < count; ++i ) + { + if( XmClipboardInquireFormat( xdisplay, xwindow, i + 1, + (XtPointer)buf.data(), + max_name_length, &copied ) + != XmClipboardSuccess ) + continue; + + buf.data()[copied] = '\0'; + + // try preferred format + if( buf == data.GetPreferredFormat( wxDataObject::Set ).GetId() ) + { + chosenFormat = data.GetPreferredFormat( wxDataObject::Set ); + break; + } + + // try all other formats + for( size_t i = 0; i < dfcount; ++i ) + { + if( buf == dfarr[i].GetId() ) + chosenFormat = dfarr[i]; + } + } + } - return receivedString; - } + if( chosenFormat == wxDF_INVALID ) + return false; + + /////////////////////////////////////////////////////////////////////////// + // now retrieve the data + /////////////////////////////////////////////////////////////////////////// + unsigned long length, dummy1; + long dummy2; + wxString id = chosenFormat.GetId(); + + while( ( retval = XmClipboardInquireLength( xdisplay, xwindow, + wxConstCast(id.c_str(), char), + &length ) ) + == XmClipboardLocked ); + if( retval != XmClipboardSuccess ) + return false; + + wxCharBuffer buf(length); + + while( ( retval = XmClipboardRetrieve( xdisplay, xwindow, + wxConstCast(id.c_str(), char), + (XtPointer)buf.data(), + length, &dummy1, &dummy2 ) ) + == XmClipboardLocked ); + if( retval != XmClipboardSuccess ) + return false; + + if( !data.SetData( chosenFormat, length, buf.data() ) ) + return false; + + return true; } +#endif // wxUSE_CLIPBOARD