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/***************************************************************************
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* Copyright (C) 2004-2010 by Thomas Fischer *
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* fischer@unix-ag.uni-kl.de *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <QApplication>
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#include <QMouseEvent>
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#include <bibtexeditor.h>
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#include <bibtexfilemodel.h>
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#include <fileimporterbibtex.h>
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#include <fileexporterbibtex.h>
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#include "clipboard.h"
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class Clipboard::ClipboardPrivate
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BibTeXEditor *bibTeXEditor;
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QPoint previousPosition;
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ClipboardPrivate(BibTeXEditor *be, Clipboard *p)
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: parent(p), bibTeXEditor(be) {
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QString selectionToText() {
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QModelIndexList mil = bibTeXEditor->selectionModel()->selectedRows();
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File *file = new File();
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for (QModelIndexList::ConstIterator it = mil.constBegin(); it != mil.constEnd(); ++it) {
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file->append(bibTeXEditor->bibTeXModel()->element(bibTeXEditor->sortFilterProxyModel()->mapToSource(*it).row()));
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FileExporterBibTeX exporter;
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QBuffer buffer(bibTeXEditor);
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buffer.open(QBuffer::WriteOnly);
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exporter.save(&buffer, file);
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buffer.open(QBuffer::ReadOnly);
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QTextStream ts(&buffer);
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QString text = ts.readAll();
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bool insertText(const QString &text) {
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/// use BibTeX importer to generate representation from plain text
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FileImporterBibTeX importer;
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File *file = importer.fromString(text);
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BibTeXFileModel *bibTeXModel = bibTeXEditor->bibTeXModel();
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QSortFilterProxyModel *sfpModel = bibTeXEditor->sortFilterProxyModel();
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/// insert new elements one by one
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int startRow = bibTeXModel->rowCount(); ///< memorize row where insertion started
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for (File::Iterator it = file->begin(); it != file->end(); ++it)
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bibTeXModel->insertRow(*it, bibTeXEditor->model()->rowCount());
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int endRow = bibTeXModel->rowCount() - 1; ///< memorize row where insertion ended
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// FIXME selection of new elements will not work if list is sorted!
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/// select newly inserted elements
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QItemSelectionModel *ism = bibTeXEditor->selectionModel();
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/// highlight those rows in the editor which correspond to newly inserted elements
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for (int i = startRow; i <= endRow;++i)
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ism->select(sfpModel->mapFromSource(bibTeXModel->index(i, 0)), QItemSelectionModel::Rows | QItemSelectionModel::Select);
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/// return true if at least one element was inserted
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return startRow <= endRow;
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Clipboard::Clipboard(BibTeXEditor *bibTeXEditor)
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: QObject(bibTeXEditor), d(new ClipboardPrivate(bibTeXEditor, this))
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connect(bibTeXEditor, SIGNAL(editorMouseEvent(QMouseEvent*)), this, SLOT(editorMouseEvent(QMouseEvent*)));
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connect(bibTeXEditor, SIGNAL(editorDragEnterEvent(QDragEnterEvent*)), this, SLOT(editorDragEnterEvent(QDragEnterEvent*)));
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connect(bibTeXEditor, SIGNAL(editorDragMoveEvent(QDragMoveEvent*)), this, SLOT(editorDragMoveEvent(QDragMoveEvent*)));
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connect(bibTeXEditor, SIGNAL(editorDropEvent(QDropEvent*)), this, SLOT(editorDropEvent(QDropEvent*)));
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bibTeXEditor->setAcceptDrops(true);
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void Clipboard::cut()
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d->bibTeXEditor->selectionDelete();
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void Clipboard::copy()
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QString text = d->selectionToText();
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QClipboard *clipboard = QApplication::clipboard();
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clipboard->setText(text);
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void Clipboard::copyReferences()
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QStringList references;
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QModelIndexList mil = d->bibTeXEditor->selectionModel()->selectedRows();
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for (QModelIndexList::ConstIterator it = mil.constBegin(); it != mil.constEnd(); ++it) {
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Entry *entry = dynamic_cast<Entry*>(d->bibTeXEditor->bibTeXModel()->element(d->bibTeXEditor->sortFilterProxyModel()->mapToSource(*it).row()));
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references << entry->id();
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if (!references.isEmpty()) {
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QClipboard *clipboard = QApplication::clipboard();
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clipboard->setText(references.join(","));
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void Clipboard::paste()
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QClipboard *clipboard = QApplication::clipboard();
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d->insertText(clipboard->text());
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d->bibTeXEditor->externalModification();
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void Clipboard::editorMouseEvent(QMouseEvent *event)
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if (!(event->buttons()&Qt::LeftButton))
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if (d->previousPosition.x() > -1 && (event->pos() - d->previousPosition).manhattanLength() >= QApplication::startDragDistance()) {
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QString text = d->selectionToText();
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QDrag *drag = new QDrag(d->bibTeXEditor);
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QMimeData *mimeData = new QMimeData();
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QByteArray data = text.toAscii();
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mimeData->setData("text/plain", data);
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drag->setMimeData(mimeData);
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Qt::DropAction dropAction = drag->exec(Qt::CopyAction);
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kDebug() << "dropAction = " << dropAction;
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// Q_ASSERT_X(dropAction == Qt::CopyAction, "void Clipboard::editorMouseEvent(QMouseEvent *event)", "Drag'n'drop is not the expected copy operation");
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d->previousPosition = event->pos();
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void Clipboard::editorDragEnterEvent(QDragEnterEvent *event)
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if (event->mimeData()->hasText())
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event->acceptProposedAction();
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void Clipboard::editorDragMoveEvent(QDragMoveEvent *event)
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if (event->mimeData()->hasText())
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event->acceptProposedAction();
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void Clipboard::editorDropEvent(QDropEvent *event)
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QString text = event->mimeData()->text();
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if (!text.isEmpty()) {
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d->bibTeXEditor->externalModification();
added
removed
src/gui/bibtex/clipboard.cpp
