lyx_mirror/src/frontends/qt4/GuiClipboard.C
Georg Baum 3500af60ba Fix bug 2138: copy and paste should preserve formatting between different
LyX instances. This re-enables copy/paste from the internal clipboard on
OS X (currently broken since Clipboard::isInternal() always returns false for
some reason).

	* src/insets/insettabular.C
	(InsetTabular::doDispatch): adjust to clipboard interface change
	(InsetTabular::copySelection): ditto

	* src/mathed/InsetMathGrid.C
	(InsetMathGrid::doDispatch): ditto

	* src/mathed/InsetMathNest.C
	(InsetMathNest::doDispatch): ditto

	* src/buffer.[Ch]
	(Buffer::readString): New method: Read document from a string
	(Buffer::readFile): Change return value from bool to enum (needed
	for readString). Return wrongversion if we are reading from a string
	and the version does not match.
	(Buffer::do_writeFile): make public and rename to write

	* src/CutAndPaste.C
	(putClipboard): New helper, put stuff to the system clipboard
	(void copySelectionHelper): Use putClipboard instead of
	theClipboard().put()
	(void copySelection): ditto
	(void pasteClipboard): new method for pasting in text
	(void pasteParagraphList):

	* src/frontends/Clipboard.h
	(Clipboard::get): Rename to getAsText
	(Clipboard::getAsLyX): New method for getting the system clipboard
	in LyX format
	(Clipboard::hasLyXContents): New method telling whether there is LyX
	contents in the clipboard

	* src/frontends/qt4/GuiClipboard.[Ch]: Implement the new methods

	* src/text3.C
	(LyXText::dispatch): Use pasteClipboard for pasting the system
	clipboard


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16669 a592a061-630c-0410-9148-cb99ea01b6c8
2007-01-13 18:29:50 +00:00

122 lines
2.9 KiB
C

// -*- C++ -*-
/**
* \file qt4/GuiClipboard.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
* \author Abdelrazak Younes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "GuiClipboard.h"
#include "qt_helpers.h"
#include "debug.h"
#include <QApplication>
#include <QClipboard>
#include <QMimeData>
#include <QString>
#include "support/lstrings.h"
using lyx::support::internalLineEnding;
using lyx::support::externalLineEnding;
using std::endl;
using std::string;
namespace {
char const * const mime_type = "application/x-lyx";
}
namespace lyx {
namespace frontend {
string const GuiClipboard::getAsLyX() const
{
lyxerr[Debug::ACTION] << "GuiClipboard::getAsLyX(): `";
// We don't convert encodings here since the encoding of the
// clipboard contents is specified in the data itself
QMimeData const * source =
qApp->clipboard()->mimeData(QClipboard::Clipboard);
if (!source) {
lyxerr[Debug::ACTION] << "' (no QMimeData)" << endl;
return string();
}
if (source->hasFormat(mime_type)) {
// data from ourself or some other LyX instance
QByteArray const ar = source->data(mime_type);
string const s(ar.data(), ar.count());
if (lyxerr.debugging(Debug::ACTION))
lyxerr[Debug::ACTION] << s << "'" << endl;
return s;
}
lyxerr[Debug::ACTION] << "'" << endl;
return string();
}
docstring const GuiClipboard::getAsText() const
{
// text data from other applications
QString const str = qApp->clipboard()->text(QClipboard::Clipboard);
if (lyxerr.debugging(Debug::ACTION))
lyxerr[Debug::ACTION] << "GuiClipboard::getAsText(): `"
<< fromqstr(str) << "'" << endl;
if (str.isNull())
return docstring();
return internalLineEnding(qstring_to_ucs4(str));
}
void GuiClipboard::put(string const & lyx, docstring const & text)
{
if (lyxerr.debugging(Debug::ACTION))
lyxerr[Debug::ACTION] << "GuiClipboard::put(`" << lyx << "' `"
<< to_utf8(text) << "')" << endl;
// We don't convert the encoding of lyx since the encoding of the
// clipboard contents is specified in the data itself
QMimeData * data = new QMimeData;
if (!lyx.empty()) {
QByteArray const qlyx(lyx.c_str(), lyx.size());
data->setData(mime_type, qlyx);
}
// Don't test for text.empty() since we want to be able to clear the
// clipboard.
QString const qtext = toqstr(text);
data->setText(qtext);
qApp->clipboard()->setMimeData(data, QClipboard::Clipboard);
}
bool GuiClipboard::hasLyXContents() const
{
QMimeData const * const source =
qApp->clipboard()->mimeData(QClipboard::Clipboard);
return source && source->hasFormat(mime_type);
}
bool GuiClipboard::isInternal() const
{
return qApp->clipboard()->ownsClipboard();
}
bool GuiClipboard::empty() const
{
return qApp->clipboard()->text(QClipboard::Clipboard).isEmpty();
}
} // namespace frontend
} // namespace lyx