diff --git a/src/textentry.cpp b/src/textentry.cpp index 4d23be24..85310a50 100644 --- a/src/textentry.cpp +++ b/src/textentry.cpp @@ -1,454 +1,479 @@ /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. --- Copyright (C) 2009 Alexander Rieder Copyright (C) 2012 Martin Kuettler */ #include "textentry.h" #include "worksheettextitem.h" #include "epsrenderer.h" #include "latexrenderer.h" #include "jupyterutils.h" #include "settings.h" #include #include #include #include #include #include #include TextEntry::TextEntry(Worksheet* worksheet) : WorksheetEntry(worksheet) , m_convertCell(false) , m_convertTarget() , m_textItem(new WorksheetTextItem(this, Qt::TextEditorInteraction)) { m_textItem->enableRichText(true); connect(m_textItem, &WorksheetTextItem::moveToPrevious, this, &TextEntry::moveToPreviousEntry); connect(m_textItem, &WorksheetTextItem::moveToNext, this, &TextEntry::moveToNextEntry); connect(m_textItem, SIGNAL(execute()), this, SLOT(evaluate())); connect(m_textItem, &WorksheetTextItem::doubleClick, this, &TextEntry::resolveImagesAtCursor); } void TextEntry::populateMenu(QMenu* menu, QPointF pos) { bool imageSelected = false; QTextCursor cursor = m_textItem->textCursor(); const QChar repl = QChar::ObjectReplacementCharacter; if (cursor.hasSelection()) { QString selection = m_textItem->textCursor().selectedText(); imageSelected = selection.contains(repl); } else { // we need to try both the current cursor and the one after the that cursor = m_textItem->cursorForPosition(pos); qDebug() << cursor.position(); for (int i = 2; i; --i) { int p = cursor.position(); if (m_textItem->document()->characterAt(p-1) == repl && cursor.charFormat().hasProperty(EpsRenderer::CantorFormula)) { m_textItem->setTextCursor(cursor); imageSelected = true; break; } cursor.movePosition(QTextCursor::NextCharacter); } } if (imageSelected) { menu->addAction(i18n("Show LaTeX code"), this, SLOT(resolveImagesAtCursor())); menu->addSeparator(); } WorksheetEntry::populateMenu(menu, pos); } bool TextEntry::isEmpty() { return m_textItem->document()->isEmpty(); } int TextEntry::type() const { return Type; } bool TextEntry::acceptRichText() { return true; } bool TextEntry::focusEntry(int pos, qreal xCoord) { if (aboutToBeRemoved()) return false; m_textItem->setFocusAt(pos, xCoord); return true; } void TextEntry::setContent(const QString& content) { m_textItem->setPlainText(content); } void TextEntry::setContent(const QDomElement& content, const KZip& file) { Q_UNUSED(file); if(content.firstChildElement(QLatin1String("body")).isNull()) return; if (content.hasAttribute(QLatin1String("convertTarget"))) { m_convertCell = true; m_convertTarget = content.attribute(QLatin1String("convertTarget")); } else m_convertCell = false; QDomDocument doc = QDomDocument(); QDomNode n = doc.importNode(content.firstChildElement(QLatin1String("body")), true); doc.appendChild(n); QString html = doc.toString(); qDebug() << html; m_textItem->setHtml(html); } void TextEntry::setContentFromJupyter(const QJsonObject& cell) { if (JupyterUtils::isRawCell(cell)) { m_convertCell = true; const QJsonObject& metadata = cell.value(QLatin1String("metadata")).toObject(QJsonObject()); m_convertTarget = metadata.value(QLatin1String("format")).toString(QString()); m_textItem->setPlainText(JupyterUtils::getSource(cell)); } else if (JupyterUtils::isMarkdownCell(cell)) { m_convertCell = false; m_convertTarget.clear(); QJsonObject cantorMetadata = JupyterUtils::getCantorMetadata(cell); m_textItem->setHtml(cantorMetadata.value(QLatin1String("text_entry_content")).toString()); } } QJsonValue TextEntry::toJupyterJson() { // Simple logic: // If convertTarget is empty, it's user maded cell and we convert it to a markdown // If convertTarget setted, it's raw cell from Jupyter and we convert it to Jupyter cell QTextDocument* doc = m_textItem->document()->clone(); QTextCursor cursor = doc->find(QString(QChar::ObjectReplacementCharacter)); while(!cursor.isNull()) { QTextCharFormat format = cursor.charFormat(); if (format.hasProperty(EpsRenderer::CantorFormula)) { showLatexCode(cursor); } cursor = m_textItem->document()->find(QString(QChar::ObjectReplacementCharacter), cursor); } QJsonObject metadata; QString entryData; QString entryType; if (!m_convertCell) { entryType = QLatin1String("markdown"); // Jupyter TODO: Handle metadata // Add raw text of entry to metadata, for situation when // Cantor opens .ipynb converted from our .cws format QJsonObject cantorMetadata; - cantorMetadata.insert(QLatin1String("text_entry_content"), doc->toHtml()); - metadata.insert(JupyterUtils::cantorMetadataKey, cantorMetadata); if (Settings::storeTextEntryFormatting()) + { entryData = doc->toHtml(); + + // Remove DOCTYPE from html + entryData.remove(QRegExp(QLatin1String("]*>\\n"))); + + cantorMetadata.insert(QLatin1String("text_entry_content"), entryData); + } else entryData = doc->toPlainText(); + + metadata.insert(JupyterUtils::cantorMetadataKey, cantorMetadata); + // Replace our $$ formulas to $ entryData.replace(QLatin1String("$$"), QLatin1String("$")); } else { entryType = QLatin1String("raw"); metadata.insert(QLatin1String("format"), m_convertTarget); entryData = doc->toPlainText(); } QJsonObject entry; entry.insert(QLatin1String("cell_type"), entryType); entry.insert(QLatin1String("metadata"), metadata); JupyterUtils::setSource(entry, entryData); return entry; } QDomElement TextEntry::toXml(QDomDocument& doc, KZip* archive) { Q_UNUSED(archive); QScopedPointer document(m_textItem->document()->clone()); //make sure that the latex code is shown instead of the rendered formulas QTextCursor cursor = document->find(QString(QChar::ObjectReplacementCharacter)); while(!cursor.isNull()) { QTextCharFormat format = cursor.charFormat(); if (format.hasProperty(EpsRenderer::CantorFormula)) showLatexCode(cursor); cursor = document->find(QString(QChar::ObjectReplacementCharacter), cursor); } const QString& html = document->toHtml(); qDebug() << html; QDomElement el = doc.createElement(QLatin1String("Text")); QDomDocument myDoc = QDomDocument(); myDoc.setContent(html); el.appendChild(myDoc.documentElement().firstChildElement(QLatin1String("body"))); if (m_convertCell) el.setAttribute(QLatin1String("convertTarget"), m_convertTarget); return el; } QString TextEntry::toPlain(const QString& commandSep, const QString& commentStartingSeq, const QString& commentEndingSeq) { Q_UNUSED(commandSep); if (commentStartingSeq.isEmpty()) return QString(); /* // would this be plain enough? QTextCursor cursor = m_textItem->textCursor(); cursor.movePosition(QTextCursor::Start); cursor.movePosition(QTextCursor::End, QTextCursor::KeepAnchor); QString text = m_textItem->resolveImages(cursor); text.replace(QChar::ParagraphSeparator, '\n'); text.replace(QChar::LineSeparator, '\n'); */ QString text = m_textItem->toPlainText(); if (!commentEndingSeq.isEmpty()) return commentStartingSeq + text + commentEndingSeq + QLatin1String("\n"); return commentStartingSeq + text.replace(QLatin1String("\n"), QLatin1String("\n") + commentStartingSeq) + QLatin1String("\n"); } void TextEntry::interruptEvaluation() { } bool TextEntry::evaluate(EvaluationOption evalOp) { QTextCursor cursor = findLatexCode(); while (!cursor.isNull()) { QString latexCode = cursor.selectedText(); qDebug()<<"found latex: "<setLatexCode(latexCode); renderer->setEquationOnly(true); renderer->setEquationType(Cantor::LatexRenderer::InlineEquation); renderer->setMethod(Cantor::LatexRenderer::LatexMethod); renderer->renderBlocking(); bool success; QTextImageFormat formulaFormat; if (renderer->renderingSuccessful()) { EpsRenderer* epsRend = worksheet()->epsRenderer(); formulaFormat = epsRend->render(m_textItem->document(), renderer); success = !formulaFormat.name().isEmpty(); } else { success = false; } qDebug()<<"rendering successful? "<document()->find(QString(QChar::ObjectReplacementCharacter)); while(!cursor.isNull()) { QTextCharFormat format = cursor.charFormat(); if (format.hasProperty(EpsRenderer::CantorFormula)) { qDebug() << "found a formula... rendering the eps..."; QUrl url = format.property(EpsRenderer::ImagePath).toUrl(); QSizeF s = worksheet()->epsRenderer()->renderToResource(m_textItem->document(), url); qDebug() << "rendering successful? " << s.isValid(); //cursor.deletePreviousChar(); //cursor.insertText(QString(QChar::ObjectReplacementCharacter), format); } cursor = m_textItem->document()->find(QString(QChar::ObjectReplacementCharacter), cursor); } } void TextEntry::resolveImagesAtCursor() { QTextCursor cursor = m_textItem->textCursor(); if (!cursor.hasSelection()) cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor); cursor.insertText(m_textItem->resolveImages(cursor)); } QTextCursor TextEntry::findLatexCode(const QTextCursor& cursor) const { QTextDocument *doc = m_textItem->document(); QTextCursor startCursor; if (cursor.isNull()) startCursor = doc->find(QLatin1String("$$")); else startCursor = doc->find(QLatin1String("$$"), cursor); if (startCursor.isNull()) return startCursor; const QTextCursor endCursor = doc->find(QLatin1String("$$"), startCursor); if (endCursor.isNull()) return endCursor; startCursor.setPosition(startCursor.selectionStart()); startCursor.setPosition(endCursor.position(), QTextCursor::KeepAnchor); return startCursor; } QString TextEntry::showLatexCode(QTextCursor& cursor) { QString latexCode = cursor.charFormat().property(EpsRenderer::Code).toString(); cursor.deletePreviousChar(); latexCode = QLatin1String("$$") + latexCode + QLatin1String("$$"); cursor.insertText(latexCode); return latexCode; } int TextEntry::searchText(const QString& text, const QString& pattern, QTextDocument::FindFlags qt_flags) { Qt::CaseSensitivity caseSensitivity; if (qt_flags & QTextDocument::FindCaseSensitively) caseSensitivity = Qt::CaseSensitive; else caseSensitivity = Qt::CaseInsensitive; int position; if (qt_flags & QTextDocument::FindBackward) position = text.lastIndexOf(pattern, -1, caseSensitivity); else position = text.indexOf(pattern, 0, caseSensitivity); return position; } WorksheetCursor TextEntry::search(const QString& pattern, unsigned flags, QTextDocument::FindFlags qt_flags, const WorksheetCursor& pos) { if (!(flags & WorksheetEntry::SearchText) || (pos.isValid() && pos.entry() != this)) return WorksheetCursor(); QTextCursor textCursor = m_textItem->search(pattern, qt_flags, pos); int position = 0; QTextCursor latexCursor; QString latex; if (flags & WorksheetEntry::SearchLaTeX) { const QString repl = QString(QChar::ObjectReplacementCharacter); latexCursor = m_textItem->search(repl, qt_flags, pos); while (!latexCursor.isNull()) { latex = m_textItem->resolveImages(latexCursor); position = searchText(latex, pattern, qt_flags); if (position >= 0) { break; } WorksheetCursor c(this, m_textItem, latexCursor); latexCursor = m_textItem->search(repl, qt_flags, c); } } if (latexCursor.isNull()) { if (textCursor.isNull()) return WorksheetCursor(); else return WorksheetCursor(this, m_textItem, textCursor); } else { if (textCursor.isNull() || latexCursor < textCursor) { int start = latexCursor.selectionStart(); latexCursor.insertText(latex); QTextCursor c = m_textItem->textCursor(); c.setPosition(start + position); c.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, pattern.length()); return WorksheetCursor(this, m_textItem, c); } else { return WorksheetCursor(this, m_textItem, textCursor); } } } void TextEntry::layOutForWidth(qreal w, bool force) { if (size().width() == w && !force) return; m_textItem->setGeometry(0, 0, w); setSize(QSizeF(m_textItem->width(), m_textItem->height() + VerticalMargin)); } bool TextEntry::wantToEvaluate() { return !findLatexCode().isNull(); } + +bool TextEntry::isConvertedCantorTextEntry(const QJsonObject& cell) +{ + if (!JupyterUtils::isMarkdownCell(cell)) + return false; + + QJsonObject cantorMetadata = JupyterUtils::getCantorMetadata(cell); + const QJsonValue& textContentValue = cantorMetadata.value(QLatin1String("text_entry_content")); + + if (!textContentValue.isString()) + return false; + + const QString& textContent = textContentValue.toString(); + const QString& source = JupyterUtils::getSource(cell); + + return textContent == source; +} diff --git a/src/textentry.h b/src/textentry.h index 5c011e3f..50e4f565 100644 --- a/src/textentry.h +++ b/src/textentry.h @@ -1,94 +1,96 @@ /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. --- Copyright (C) 2009 Alexander Rieder Copyright (C) 2012 Martin Kuettler */ #ifndef TEXTENTRY_H #define TEXTENTRY_H #include #include #include #include #include #include #include #include "worksheetentry.h" #include "worksheettextitem.h" class TextEntry : public WorksheetEntry { Q_OBJECT public: explicit TextEntry(Worksheet* worksheet); ~TextEntry() override = default; enum {Type = UserType + 1}; int type() const override; bool isEmpty() override; bool acceptRichText() override; bool focusEntry(int pos = WorksheetTextItem::TopLeft, qreal xCoord=0) override; // do we need/get this? //bool worksheetContextMenuEvent(...); //void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); void setContent(const QString& content) override; void setContent(const QDomElement& content, const KZip& file) override; void setContentFromJupyter(const QJsonObject& cell) override; + static bool isConvertedCantorTextEntry(const QJsonObject& cell); + QDomElement toXml(QDomDocument& doc, KZip* archive) override; QJsonValue toJupyterJson() override; QString toPlain(const QString& commandSep, const QString& commentStartingSeq, const QString& commentEndingSeq) override; void interruptEvaluation() override; void layOutForWidth(qreal w, bool force = false) override; int searchText(const QString& text, const QString& pattern, QTextDocument::FindFlags qt_flags); WorksheetCursor search(const QString& pattern, unsigned flags, QTextDocument::FindFlags qt_flags, const WorksheetCursor& pos = WorksheetCursor()) override; public Q_SLOTS: bool evaluate(WorksheetEntry::EvaluationOption evalOp = FocusNext) override; void resolveImagesAtCursor(); void updateEntry() override; void populateMenu(QMenu* menu, QPointF pos) override; protected: bool wantToEvaluate() override; private: QTextCursor findLatexCode(const QTextCursor& cursor = QTextCursor()) const; QString showLatexCode(QTextCursor& cursor); private: bool m_convertCell; QString m_convertTarget; WorksheetTextItem* m_textItem; }; #endif //TEXTENTRY_H diff --git a/src/worksheet.cpp b/src/worksheet.cpp index 74ea65ec..92915eba 100644 --- a/src/worksheet.cpp +++ b/src/worksheet.cpp @@ -1,2208 +1,2206 @@ /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. --- Copyright (C) 2009 Alexander Rieder Copyright (C) 2012 Martin Kuettler */ #include "worksheet.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "settings.h" #include "commandentry.h" #include "textentry.h" #include "markdownentry.h" #include "latexentry.h" #include "imageentry.h" #include "pagebreakentry.h" #include "placeholderentry.h" #include "jupyterutils.h" #include "lib/backend.h" #include "lib/extension.h" #include "lib/helpresult.h" #include "lib/session.h" #include "lib/defaulthighlighter.h" #include "lib/backend.h" #include const double Worksheet::LeftMargin = 4; const double Worksheet::RightMargin = 4; const double Worksheet::TopMargin = 12; const double Worksheet::EntryCursorLength = 30; const double Worksheet::EntryCursorWidth = 2; Worksheet::Worksheet(Cantor::Backend* backend, QWidget* parent) : QGraphicsScene(parent) { m_session = backend->createSession(); m_highlighter = nullptr; m_firstEntry = nullptr; m_lastEntry = nullptr; m_lastFocusedTextItem = nullptr; m_dragEntry = nullptr; m_placeholderEntry = nullptr; m_viewWidth = 0; m_protrusion = 0; m_dragScrollTimer = nullptr; m_choosenCursorEntry = nullptr; m_isCursorEntryAfterLastEntry = false; m_entryCursorItem = addLine(0,0,0,0); const QColor& color = (palette().color(QPalette::Base).lightness() < 128) ? Qt::white : Qt::black; QPen pen(color); pen.setWidth(EntryCursorWidth); m_entryCursorItem->setPen(pen); m_entryCursorItem->hide(); m_cursorItemTimer = new QTimer(this); connect(m_cursorItemTimer, &QTimer::timeout, this, &Worksheet::animateEntryCursor); m_cursorItemTimer->start(500); m_isPrinting = false; m_loginDone = false; m_readOnly = false; m_isLoadingFromFile = false; enableHighlighting(Settings::self()->highlightDefault()); enableCompletion(Settings::self()->completionDefault()); enableExpressionNumbering(Settings::self()->expressionNumberingDefault()); enableAnimations(Settings::self()->animationDefault()); } Worksheet::~Worksheet() { // This is necessary, because a SeachBar might access firstEntry() // while the scene is deleted. Maybe there is a better solution to // this problem, but I can't seem to find it. m_firstEntry = nullptr; if (m_loginDone) m_session->logout(); if (m_session) { disconnect(m_session, 0, 0, 0); if (m_session->status() != Cantor::Session::Disable) m_session->logout(); m_session->deleteLater(); m_session = nullptr; } } void Worksheet::loginToSession() { m_session->login(); #ifdef WITH_EPS session()->setTypesettingEnabled(Settings::self()->typesetDefault()); #else session()->setTypesettingEnabled(false); #endif m_loginDone = true; } void Worksheet::print(QPrinter* printer) { m_epsRenderer.useHighResolution(true); m_isPrinting = true; QRect pageRect = printer->pageRect(); qreal scale = 1; // todo: find good scale for page size // todo: use epsRenderer()->scale() for printing ? const qreal width = pageRect.width()/scale; const qreal height = pageRect.height()/scale; setViewSize(width, height, scale, true); QPainter painter(printer); painter.scale(scale, scale); painter.setRenderHint(QPainter::Antialiasing); WorksheetEntry* entry = firstEntry(); qreal y = TopMargin; while (entry) { qreal h = 0; do { if (entry->type() == PageBreakEntry::Type) { entry = entry->next(); break; } h += entry->size().height(); entry = entry->next(); } while (entry && h + entry->size().height() <= height); render(&painter, QRectF(0, 0, width, height), QRectF(0, y, width, h)); y += h; if (entry) printer->newPage(); } //render(&painter); painter.end(); m_isPrinting = false; m_epsRenderer.useHighResolution(false); m_epsRenderer.setScale(-1); // force update in next call to setViewSize, worksheetView()->updateSceneSize(); // ... which happens in here } bool Worksheet::isPrinting() { return m_isPrinting; } void Worksheet::setViewSize(qreal w, qreal h, qreal s, bool forceUpdate) { Q_UNUSED(h); m_viewWidth = w; if (s != m_epsRenderer.scale() || forceUpdate) { m_epsRenderer.setScale(s); for (WorksheetEntry *entry = firstEntry(); entry; entry = entry->next()) entry->updateEntry(); } updateLayout(); } void Worksheet::updateLayout() { bool cursorRectVisible = false; bool atEnd = worksheetView()->isAtEnd(); if (currentTextItem()) { QRectF cursorRect = currentTextItem()->sceneCursorRect(); cursorRectVisible = worksheetView()->isVisible(cursorRect); } const qreal w = m_viewWidth - LeftMargin - RightMargin; qreal y = TopMargin; const qreal x = LeftMargin; for (WorksheetEntry *entry = firstEntry(); entry; entry = entry->next()) y += entry->setGeometry(x, y, w); setSceneRect(QRectF(0, 0, m_viewWidth + m_protrusion, y)); if (cursorRectVisible) makeVisible(worksheetCursor()); else if (atEnd) worksheetView()->scrollToEnd(); drawEntryCursor(); } void Worksheet::updateEntrySize(WorksheetEntry* entry) { bool cursorRectVisible = false; bool atEnd = worksheetView()->isAtEnd(); if (currentTextItem()) { QRectF cursorRect = currentTextItem()->sceneCursorRect(); cursorRectVisible = worksheetView()->isVisible(cursorRect); } qreal y = entry->y() + entry->size().height(); for (entry = entry->next(); entry; entry = entry->next()) { entry->setY(y); y += entry->size().height(); } setSceneRect(QRectF(0, 0, m_viewWidth + m_protrusion, y)); if (cursorRectVisible) makeVisible(worksheetCursor()); else if (atEnd) worksheetView()->scrollToEnd(); drawEntryCursor(); } void Worksheet::addProtrusion(qreal width) { if (m_itemProtrusions.contains(width)) ++m_itemProtrusions[width]; else m_itemProtrusions.insert(width, 1); if (width > m_protrusion) { m_protrusion = width; qreal y = lastEntry()->size().height() + lastEntry()->y(); setSceneRect(QRectF(0, 0, m_viewWidth + m_protrusion, y)); } } void Worksheet::updateProtrusion(qreal oldWidth, qreal newWidth) { removeProtrusion(oldWidth); addProtrusion(newWidth); } void Worksheet::removeProtrusion(qreal width) { if (--m_itemProtrusions[width] == 0) { m_itemProtrusions.remove(width); if (width == m_protrusion) { qreal max = -1; for (qreal p : m_itemProtrusions.keys()) { if (p > max) max = p; } m_protrusion = max; qreal y = lastEntry()->size().height() + lastEntry()->y(); setSceneRect(QRectF(0, 0, m_viewWidth + m_protrusion, y)); } } } bool Worksheet::isEmpty() { return !m_firstEntry; } bool Worksheet::isLoadingFromFile() { return m_isLoadingFromFile; } void Worksheet::makeVisible(WorksheetEntry* entry) { QRectF r = entry->boundingRect(); r = entry->mapRectToScene(r); r.adjust(0, -10, 0, 10); worksheetView()->makeVisible(r); } void Worksheet::makeVisible(const WorksheetCursor& cursor) { if (cursor.textCursor().isNull()) { if (cursor.entry()) makeVisible(cursor.entry()); return; } QRectF r = cursor.textItem()->sceneCursorRect(cursor.textCursor()); QRectF er = cursor.entry()->boundingRect(); er = cursor.entry()->mapRectToScene(er); er.adjust(0, -10, 0, 10); r.adjust(0, qMax(qreal(-100.0), er.top() - r.top()), 0, qMin(qreal(100.0), er.bottom() - r.bottom())); worksheetView()->makeVisible(r); } WorksheetView* Worksheet::worksheetView() { return qobject_cast(views().first()); } void Worksheet::setModified() { emit modified(); } WorksheetCursor Worksheet::worksheetCursor() { WorksheetEntry* entry = currentEntry(); WorksheetTextItem* item = currentTextItem(); if (!entry || !item) return WorksheetCursor(); return WorksheetCursor(entry, item, item->textCursor()); } void Worksheet::setWorksheetCursor(const WorksheetCursor& cursor) { if (!cursor.isValid()) return; if (m_lastFocusedTextItem) m_lastFocusedTextItem->clearSelection(); m_lastFocusedTextItem = cursor.textItem(); cursor.textItem()->setTextCursor(cursor.textCursor()); } WorksheetEntry* Worksheet::currentEntry() { QGraphicsItem* item = focusItem(); // Entry cursor activate if (m_choosenCursorEntry || m_isCursorEntryAfterLastEntry) return nullptr; if (!item /*&& !hasFocus()*/) item = m_lastFocusedTextItem; /*else m_focusItem = item;*/ while (item && (item->type() < QGraphicsItem::UserType || item->type() >= QGraphicsItem::UserType + 100)) item = item->parentItem(); if (item) { WorksheetEntry* entry = qobject_cast(item->toGraphicsObject()); if (entry && entry->aboutToBeRemoved()) { if (entry->isAncestorOf(m_lastFocusedTextItem)) m_lastFocusedTextItem = nullptr; return nullptr; } return entry; } return nullptr; } WorksheetEntry* Worksheet::firstEntry() { return m_firstEntry; } WorksheetEntry* Worksheet::lastEntry() { return m_lastEntry; } void Worksheet::setFirstEntry(WorksheetEntry* entry) { if (m_firstEntry) disconnect(m_firstEntry, SIGNAL(aboutToBeDeleted()), this, SLOT(invalidateFirstEntry())); m_firstEntry = entry; if (m_firstEntry) connect(m_firstEntry, SIGNAL(aboutToBeDeleted()), this, SLOT(invalidateFirstEntry()), Qt::DirectConnection); } void Worksheet::setLastEntry(WorksheetEntry* entry) { if (m_lastEntry) disconnect(m_lastEntry, SIGNAL(aboutToBeDeleted()), this, SLOT(invalidateLastEntry())); m_lastEntry = entry; if (m_lastEntry) connect(m_lastEntry, SIGNAL(aboutToBeDeleted()), this, SLOT(invalidateLastEntry()), Qt::DirectConnection); } void Worksheet::invalidateFirstEntry() { if (m_firstEntry) setFirstEntry(m_firstEntry->next()); } void Worksheet::invalidateLastEntry() { if (m_lastEntry) setLastEntry(m_lastEntry->previous()); } WorksheetEntry* Worksheet::entryAt(qreal x, qreal y) { QGraphicsItem* item = itemAt(x, y, QTransform()); while (item && (item->type() <= QGraphicsItem::UserType || item->type() >= QGraphicsItem::UserType + 100)) item = item->parentItem(); if (item) return qobject_cast(item->toGraphicsObject()); return nullptr; } WorksheetEntry* Worksheet::entryAt(QPointF p) { return entryAt(p.x(), p.y()); } void Worksheet::focusEntry(WorksheetEntry *entry) { if (!entry) return; entry->focusEntry(); resetEntryCursor(); //bool rt = entry->acceptRichText(); //setActionsEnabled(rt); //setAcceptRichText(rt); //ensureCursorVisible(); } void Worksheet::startDrag(WorksheetEntry* entry, QDrag* drag) { if (m_readOnly) return; resetEntryCursor(); m_dragEntry = entry; WorksheetEntry* prev = entry->previous(); WorksheetEntry* next = entry->next(); m_placeholderEntry = new PlaceHolderEntry(this, entry->size()); m_placeholderEntry->setPrevious(prev); m_placeholderEntry->setNext(next); if (prev) prev->setNext(m_placeholderEntry); else setFirstEntry(m_placeholderEntry); if (next) next->setPrevious(m_placeholderEntry); else setLastEntry(m_placeholderEntry); m_dragEntry->hide(); Qt::DropAction action = drag->exec(); qDebug() << action; if (action == Qt::MoveAction && m_placeholderEntry) { qDebug() << "insert in new position"; prev = m_placeholderEntry->previous(); next = m_placeholderEntry->next(); } m_dragEntry->setPrevious(prev); m_dragEntry->setNext(next); if (prev) prev->setNext(m_dragEntry); else setFirstEntry(m_dragEntry); if (next) next->setPrevious(m_dragEntry); else setLastEntry(m_dragEntry); m_dragEntry->show(); m_dragEntry->focusEntry(); const QPointF scenePos = worksheetView()->sceneCursorPos(); if (entryAt(scenePos) != m_dragEntry) m_dragEntry->hideActionBar(); updateLayout(); if (m_placeholderEntry) { m_placeholderEntry->setPrevious(nullptr); m_placeholderEntry->setNext(nullptr); m_placeholderEntry->hide(); m_placeholderEntry->deleteLater(); m_placeholderEntry = nullptr; } m_dragEntry = nullptr; } void Worksheet::evaluate() { qDebug()<<"evaluate worksheet"; if (!m_loginDone && !m_readOnly) loginToSession(); firstEntry()->evaluate(WorksheetEntry::EvaluateNext); emit modified(); } void Worksheet::evaluateCurrentEntry() { if (!m_loginDone && !m_readOnly) loginToSession(); WorksheetEntry* entry = currentEntry(); if(!entry) return; entry->evaluateCurrentItem(); } bool Worksheet::completionEnabled() { return m_completionEnabled; } void Worksheet::showCompletion() { WorksheetEntry* current = currentEntry(); current->showCompletion(); } WorksheetEntry* Worksheet::appendEntry(const int type) { WorksheetEntry* entry = WorksheetEntry::create(type, this); if (entry) { qDebug() << "Entry Appended"; entry->setPrevious(lastEntry()); if (lastEntry()) lastEntry()->setNext(entry); if (!firstEntry()) setFirstEntry(entry); setLastEntry(entry); updateLayout(); makeVisible(entry); focusEntry(entry); emit modified(); } return entry; } WorksheetEntry* Worksheet::appendCommandEntry() { return appendEntry(CommandEntry::Type); } WorksheetEntry* Worksheet::appendTextEntry() { return appendEntry(TextEntry::Type); } WorksheetEntry* Worksheet::appendMarkdownEntry() { return appendEntry(MarkdownEntry::Type); } WorksheetEntry* Worksheet::appendPageBreakEntry() { return appendEntry(PageBreakEntry::Type); } WorksheetEntry* Worksheet::appendImageEntry() { return appendEntry(ImageEntry::Type); } WorksheetEntry* Worksheet::appendLatexEntry() { return appendEntry(LatexEntry::Type); } void Worksheet::appendCommandEntry(const QString& text) { WorksheetEntry* entry = lastEntry(); if(!entry->isEmpty()) { entry = appendCommandEntry(); } if (entry) { focusEntry(entry); entry->setContent(text); evaluateCurrentEntry(); } } WorksheetEntry* Worksheet::insertEntry(const int type, WorksheetEntry* current) { if (!current) current = currentEntry(); if (!current) return appendEntry(type); WorksheetEntry *next = current->next(); WorksheetEntry *entry = nullptr; if (!next || next->type() != type || !next->isEmpty()) { entry = WorksheetEntry::create(type, this); entry->setPrevious(current); entry->setNext(next); current->setNext(entry); if (next) next->setPrevious(entry); else setLastEntry(entry); updateLayout(); emit modified(); } else { entry = next; } focusEntry(entry); makeVisible(entry); return entry; } WorksheetEntry* Worksheet::insertTextEntry(WorksheetEntry* current) { return insertEntry(TextEntry::Type, current); } WorksheetEntry* Worksheet::insertMarkdownEntry(WorksheetEntry* current) { return insertEntry(MarkdownEntry::Type, current); } WorksheetEntry* Worksheet::insertCommandEntry(WorksheetEntry* current) { return insertEntry(CommandEntry::Type, current); } WorksheetEntry* Worksheet::insertImageEntry(WorksheetEntry* current) { return insertEntry(ImageEntry::Type, current); } WorksheetEntry* Worksheet::insertPageBreakEntry(WorksheetEntry* current) { return insertEntry(PageBreakEntry::Type, current); } WorksheetEntry* Worksheet::insertLatexEntry(WorksheetEntry* current) { return insertEntry(LatexEntry::Type, current); } void Worksheet::insertCommandEntry(const QString& text) { WorksheetEntry* entry = insertCommandEntry(); if(entry&&!text.isNull()) { entry->setContent(text); evaluateCurrentEntry(); } } WorksheetEntry* Worksheet::insertEntryBefore(int type, WorksheetEntry* current) { if (!current) current = currentEntry(); if (!current) return nullptr; WorksheetEntry *prev = current->previous(); WorksheetEntry *entry = nullptr; if(!prev || prev->type() != type || !prev->isEmpty()) { entry = WorksheetEntry::create(type, this); entry->setNext(current); entry->setPrevious(prev); current->setPrevious(entry); if (prev) prev->setNext(entry); else setFirstEntry(entry); updateLayout(); emit modified(); } else entry = prev; focusEntry(entry); return entry; } WorksheetEntry* Worksheet::insertTextEntryBefore(WorksheetEntry* current) { return insertEntryBefore(TextEntry::Type, current); } WorksheetEntry* Worksheet::insertMarkdownEntryBefore(WorksheetEntry* current) { return insertEntryBefore(MarkdownEntry::Type, current); } WorksheetEntry* Worksheet::insertCommandEntryBefore(WorksheetEntry* current) { return insertEntryBefore(CommandEntry::Type, current); } WorksheetEntry* Worksheet::insertPageBreakEntryBefore(WorksheetEntry* current) { return insertEntryBefore(PageBreakEntry::Type, current); } WorksheetEntry* Worksheet::insertImageEntryBefore(WorksheetEntry* current) { return insertEntryBefore(ImageEntry::Type, current); } WorksheetEntry* Worksheet::insertLatexEntryBefore(WorksheetEntry* current) { return insertEntryBefore(LatexEntry::Type, current); } void Worksheet::interrupt() { if (m_session->status() == Cantor::Session::Running) { m_session->interrupt(); emit updatePrompt(); } } void Worksheet::interruptCurrentEntryEvaluation() { currentEntry()->interruptEvaluation(); } void Worksheet::highlightItem(WorksheetTextItem* item) { if (!m_highlighter) return; QTextDocument *oldDocument = m_highlighter->document(); QList > formats; if (oldDocument) { for (QTextBlock b = oldDocument->firstBlock(); b.isValid(); b = b.next()) { formats.append(b.layout()->additionalFormats()); } } // Not every highlighter is a Cantor::DefaultHighligther (e.g. the // highlighter for KAlgebra) Cantor::DefaultHighlighter* hl = qobject_cast(m_highlighter); if (hl) { hl->setTextItem(item); } else { m_highlighter->setDocument(item->document()); } if (oldDocument) { QTextCursor cursor(oldDocument); cursor.beginEditBlock(); for (QTextBlock b = oldDocument->firstBlock(); b.isValid(); b = b.next()) { b.layout()->setAdditionalFormats(formats.first()); formats.pop_front(); } cursor.endEditBlock(); } } void Worksheet::rehighlight() { if(m_highlighter) { // highlight every entry WorksheetEntry* entry; for (entry = firstEntry(); entry; entry = entry->next()) { WorksheetTextItem* item = entry->highlightItem(); if (!item) continue; highlightItem(item); m_highlighter->rehighlight(); } entry = currentEntry(); WorksheetTextItem* textitem = entry ? entry->highlightItem() : nullptr; if (textitem && textitem->hasFocus()) highlightItem(textitem); } else { // remove highlighting from entries WorksheetEntry* entry; for (entry = firstEntry(); entry; entry = entry->next()) { WorksheetTextItem* item = entry->highlightItem(); if (!item) continue; QTextCursor cursor(item->document()); cursor.beginEditBlock(); for (QTextBlock b = item->document()->firstBlock(); b.isValid(); b = b.next()) { b.layout()->clearAdditionalFormats(); } cursor.endEditBlock(); } update(); } } void Worksheet::enableHighlighting(bool highlight) { if(highlight) { if(m_highlighter) m_highlighter->deleteLater(); if (!m_readOnly) m_highlighter=session()->syntaxHighlighter(this); else m_highlighter=nullptr; if(!m_highlighter) m_highlighter=new Cantor::DefaultHighlighter(this); connect(m_highlighter, SIGNAL(rulesChanged()), this, SLOT(rehighlight())); }else { if(m_highlighter) m_highlighter->deleteLater(); m_highlighter=nullptr; } rehighlight(); } void Worksheet::enableCompletion(bool enable) { m_completionEnabled=enable; } Cantor::Session* Worksheet::session() { return m_session; } bool Worksheet::isRunning() { return m_session && m_session->status()==Cantor::Session::Running; } bool Worksheet::isReadOnly() { return m_readOnly; } bool Worksheet::showExpressionIds() { return m_showExpressionIds; } bool Worksheet::animationsEnabled() { return m_animationsEnabled; } void Worksheet::enableAnimations(bool enable) { m_animationsEnabled = enable; } void Worksheet::enableExpressionNumbering(bool enable) { m_showExpressionIds=enable; emit updatePrompt(); } QDomDocument Worksheet::toXML(KZip* archive) { QDomDocument doc( QLatin1String("CantorWorksheet") ); QDomElement root=doc.createElement( QLatin1String("Worksheet") ); root.setAttribute(QLatin1String("backend"), (m_session ? m_session->backend()->name(): m_backendName)); doc.appendChild(root); for( WorksheetEntry* entry = firstEntry(); entry; entry = entry->next()) { QDomElement el = entry->toXml(doc, archive); root.appendChild( el ); } return doc; } QJsonDocument Worksheet::toJupyterJson() { QJsonDocument doc; QJsonObject root; QJsonObject metadata; QJsonObject kernalInfo; const QString name = (m_session ? m_session->backend()->name(): m_backendName); // Jupyter TODO: adaptBackendName inverted function here? kernalInfo.insert(QLatin1String("name"), name.toLower()); kernalInfo.insert(QLatin1String("display_name"), name); metadata.insert(QLatin1String("kernelspec"), kernalInfo); root.insert(QLatin1String("metadata"), metadata); root.insert(QLatin1String("nbformat"), 4); root.insert(QLatin1String("nbformat_minor"), 1); QJsonArray cells; for( WorksheetEntry* entry = firstEntry(); entry; entry = entry->next()) { const QJsonValue entryJson = entry->toJupyterJson(); if (!entryJson.isNull()) cells.append(entryJson); } root.insert(QLatin1String("cells"), cells); doc.setObject(root); return doc; } void Worksheet::save( const QString& filename ) { QFile file(filename); if ( !file.open(QIODevice::WriteOnly) ) { KMessageBox::error( worksheetView(), i18n( "Cannot write file %1." , filename ), i18n( "Error - Cantor" )); return; } save(&file); } QByteArray Worksheet::saveToByteArray() { QBuffer buffer; save(&buffer); return buffer.buffer(); } void Worksheet::save( QIODevice* device) { qDebug()<<"saving to filename"; switch (m_type) { case CantorWorksheet: { KZip zipFile( device ); if ( !zipFile.open(QIODevice::WriteOnly) ) { KMessageBox::error( worksheetView(), i18n( "Cannot write file." ), i18n( "Error - Cantor" )); return; } QByteArray content = toXML(&zipFile).toByteArray(); qDebug()<<"content: "<isWritable()) { KMessageBox::error( worksheetView(), i18n( "Cannot write file." ), i18n( "Error - Cantor" )); return; } const QJsonDocument& doc = toJupyterJson(); device->write(doc.toJson(QJsonDocument::Indented)); break; } } } void Worksheet::savePlain(const QString& filename) { QFile file(filename); if(!file.open(QIODevice::WriteOnly)) { KMessageBox::error(worksheetView(), i18n("Error saving file %1", filename), i18n("Error - Cantor")); return; } QString cmdSep=QLatin1String(";\n"); QString commentStartingSeq = QLatin1String(""); QString commentEndingSeq = QLatin1String(""); if (!m_readOnly) { Cantor::Backend * const backend=session()->backend(); if (backend->extensions().contains(QLatin1String("ScriptExtension"))) { Cantor::ScriptExtension* e=dynamic_cast(backend->extension(QLatin1String(("ScriptExtension")))); cmdSep=e->commandSeparator(); commentStartingSeq = e->commentStartingSequence(); commentEndingSeq = e->commentEndingSequence(); } } else KMessageBox::information(worksheetView(), i18n("In read-only mode Cantor couldn't guarantee, that the export will be valid for %1", m_backendName), i18n("Cantor")); QTextStream stream(&file); for(WorksheetEntry * entry = firstEntry(); entry; entry = entry->next()) { const QString& str=entry->toPlain(cmdSep, commentStartingSeq, commentEndingSeq); if(!str.isEmpty()) stream << str + QLatin1Char('\n'); } file.close(); } void Worksheet::saveLatex(const QString& filename) { qDebug()<<"exporting to Latex: " <) stream << out.replace(QLatin1String("&"), QLatin1String("&")) .replace(QLatin1String(">"), QLatin1String(">")) .replace(QLatin1String("<"), QLatin1String("<")); file.close(); } bool Worksheet::load(const QString& filename ) { QFile file(filename); if (!file.open(QIODevice::ReadOnly)) { KMessageBox::error(worksheetView(), i18n("Couldn't open the file %1", filename), i18n("Cantor")); return false; } bool rc = load(&file); if (rc && !m_readOnly) m_session->setWorksheetPath(filename); return rc; } void Worksheet::load(QByteArray* data) { QBuffer buf(data); load(&buf); } bool Worksheet::load(QIODevice* device) { if (!device->isReadable()) { KMessageBox::error(worksheetView(), i18n("Couldn't open the selected file for reading"), i18n("Cantor")); return false; } KZip archive(device); if (archive.open(QIODevice::ReadOnly)) return loadCantorWorksheet(archive); else { qDebug() <<"not a zip file"; // Go to begin of data, we need read all data in second time device->seek(0); QJsonParseError error; const QJsonDocument& doc = QJsonDocument::fromJson(device->readAll(), &error); if (error.error != QJsonParseError::NoError) { qDebug()<<"not a json file, parsing failed with error: " << error.errorString(); QApplication::restoreOverrideCursor(); KMessageBox::error(worksheetView(), i18n("The selected file is not a valid Cantor or Jupyter project file."), i18n("Cantor")); return false; } else return loadJupyterNotebook(doc); } } bool Worksheet::loadCantorWorksheet(const KZip& archive) { m_type = Type::CantorWorksheet; const KArchiveEntry* contentEntry=archive.directory()->entry(QLatin1String("content.xml")); if (!contentEntry->isFile()) { qDebug()<<"content.xml file not found in the zip archive"; QApplication::restoreOverrideCursor(); KMessageBox::error(worksheetView(), i18n("The selected file is not a valid Cantor project file."), i18n("Cantor")); return false; } const KArchiveFile* content = static_cast(contentEntry); QByteArray data = content->data(); // qDebug()<<"read: "<isEnabled()) { QApplication::restoreOverrideCursor(); KMessageBox::information(worksheetView(), i18n("There are some problems with the %1 backend,\n"\ "please check your configuration or install the needed packages.\n" "You will only be able to view this worksheet.", m_backendName), i18n("Cantor")); m_readOnly = true; } if (m_readOnly) { // TODO: Handle this here? for (QAction* action : m_richTextActionList) action->setEnabled(false); } m_isLoadingFromFile = true; //cleanup the worksheet and all it contains delete m_session; m_session=nullptr; m_loginDone = false; //file can only be loaded in a worksheet that was not eidted/modified yet (s.a. CantorShell::load()) //in this case on the default "first entry" is available -> delete it. if (m_firstEntry) { delete m_firstEntry; m_firstEntry = nullptr; } resetEntryCursor(); if (!m_readOnly) m_session=b->createSession(); qDebug()<<"loading entries"; QDomElement expressionChild = root.firstChildElement(); WorksheetEntry* entry = nullptr; while (!expressionChild.isNull()) { QString tag = expressionChild.tagName(); if (tag == QLatin1String("Expression")) { entry = appendCommandEntry(); entry->setContent(expressionChild, archive); } else if (tag == QLatin1String("Text")) { entry = appendTextEntry(); entry->setContent(expressionChild, archive); } else if (tag == QLatin1String("Markdown")) { entry = appendMarkdownEntry(); entry->setContent(expressionChild, archive); } else if (tag == QLatin1String("Latex")) { entry = appendLatexEntry(); entry->setContent(expressionChild, archive); } else if (tag == QLatin1String("PageBreak")) { entry = appendPageBreakEntry(); entry->setContent(expressionChild, archive); } else if (tag == QLatin1String("Image")) { entry = appendImageEntry(); entry->setContent(expressionChild, archive); } if (m_readOnly && entry) { entry->setAcceptHoverEvents(false); entry = nullptr; } expressionChild = expressionChild.nextSiblingElement(); } if (m_readOnly) clearFocus(); m_isLoadingFromFile = false; //Set the Highlighting, depending on the current state //If the session isn't logged in, use the default enableHighlighting( m_highlighter!=nullptr || Settings::highlightDefault() ); emit loaded(); return true; } bool Worksheet::loadJupyterNotebook(const QJsonDocument& doc) { m_type = Type::JupyterNotebook; if (!JupyterUtils::isJupyterNotebook(doc)) { QApplication::restoreOverrideCursor(); showInvalidNotebookSchemeError(); return false; } QJsonObject notebookObject = doc.object(); int nbformatMajor, nbformatMinor; std::tie(nbformatMajor, nbformatMinor) = JupyterUtils::getNbformatVersion(notebookObject); if (QT_VERSION_CHECK(nbformatMajor, nbformatMinor, 0) < QT_VERSION_CHECK(4,1,0)) { QApplication::restoreOverrideCursor(); KMessageBox::error(worksheetView(), i18n("Cantor doesn't support import Jupyter notebooks with version lower that 4.1 (detected %1.%2)",nbformatMajor, nbformatMinor), i18n("Cantor")); return false; } const QJsonArray& cells = JupyterUtils::getCells(notebookObject); const QJsonObject& metadata = JupyterUtils::getMetadata(notebookObject); const QJsonObject& kernalspec = metadata.value(QLatin1String("kernelspec")).toObject(); const QJsonValue& name = kernalspec.value(QLatin1String("name")); qDebug() << kernalspec << name; if (kernalspec.isEmpty() || name.type() == QJsonValue::Undefined) { QApplication::restoreOverrideCursor(); showInvalidNotebookSchemeError(); return false; } // Jupyter TODO: Check, that adaptBackendName will correct m_backendName = adaptBackendName(name.toString()); Cantor::Backend* backend = Cantor::Backend::getBackend(m_backendName); if (!backend) { QApplication::restoreOverrideCursor(); KMessageBox::information(worksheetView(), i18n("%1 backend was not found. Editing and executing entries is not possible", m_backendName), i18n("Cantor")); m_readOnly = true; } else m_readOnly = false; if(!m_readOnly && !backend->isEnabled()) { QApplication::restoreOverrideCursor(); KMessageBox::information(worksheetView(), i18n("There are some problems with the %1 backend,\n"\ "please check your configuration or install the needed packages.\n" "You will only be able to view this worksheet.", m_backendName), i18n("Cantor")); m_readOnly = true; } if (m_readOnly) { // Jupyter TODO: Handle this here? Again? for (QAction* action : m_richTextActionList) action->setEnabled(false); } m_isLoadingFromFile = true; if (m_session) delete m_session; m_session = nullptr; m_loginDone = false; if (m_firstEntry) { delete m_firstEntry; m_firstEntry = nullptr; } resetEntryCursor(); if (!m_readOnly) m_session=backend->createSession(); qDebug() << "loading jupyter entries"; // Jupyter TODO: handle error, like no object, no 'cell_type', etc // Maybe forward back to cantor shell and UI message about failed WorksheetEntry* entry = nullptr; for (QJsonArray::const_iterator iter = cells.begin(); iter != cells.end(); iter++) { if (!JupyterUtils::isJupyterCell(*iter)) continue; const QJsonObject& cell = iter->toObject(); QString cellType = JupyterUtils::getCellType(cell); if (cellType == QLatin1String("code")) { entry = appendCommandEntry(); entry->setContentFromJupyter(cell); } else if (cellType == QLatin1String("markdown")) { - QJsonObject cantorMetadata = JupyterUtils::getCantorMetadata(cell); - if (cantorMetadata.contains(QLatin1String("text_entry_content"))) + if (TextEntry::isConvertedCantorTextEntry(cell)) { - // If we have 'text' key in cantor metadata in Markdown cell, - // then we know, that this is markdown cell converted from Cantor TextEntry + // Now we know, that this is markdown cell converted from Cantor TextEntry (and unmodified after that) // So we could explicitly add text entry entry = appendTextEntry(); entry->setContentFromJupyter(cell); } else { // Jupyter TODO: improve finding $$...$$, current realization don't support escaping entry = appendMarkdownEntry(); entry->setContentFromJupyter(cell); entry->evaluate(WorksheetEntry::EvaluationOption::DoNothing); } } else if (cellType == QLatin1String("raw")) { entry = appendTextEntry(); entry->setContentFromJupyter(cell); } if (m_readOnly && entry) { entry->setAcceptHoverEvents(false); entry = nullptr; } } if (m_readOnly) clearFocus(); m_isLoadingFromFile = false; enableHighlighting( m_highlighter!=nullptr || Settings::highlightDefault() ); emit loaded(); return true; } QString Worksheet::adaptBackendName(const QString& jupyterBackendName) { QString backendName = jupyterBackendName; if (jupyterBackendName == QLatin1String("sagemath")) backendName = QLatin1String("sage"); else if (jupyterBackendName.startsWith(QLatin1String("julia"))) backendName = QLatin1String("julia"); return backendName; } void Worksheet::showInvalidNotebookSchemeError() { KMessageBox::error(worksheetView(), i18n("The file is not a valid Jupyter notebook file."), i18n("Cantor")); } void Worksheet::gotResult(Cantor::Expression* expr) { if(expr==nullptr) expr=qobject_cast(sender()); if(expr==nullptr) return; //We're only interested in help results, others are handled by the WorksheetEntry for (auto* result : expr->results()) { if(result && result->type()==Cantor::HelpResult::Type) { QString help = result->toHtml(); //Do some basic LaTeX replacing help.replace(QRegExp(QLatin1String("\\\\code\\{([^\\}]*)\\}")), QLatin1String("\\1")); help.replace(QRegExp(QLatin1String("\\$([^\\$])\\$")), QLatin1String("\\1")); emit showHelp(help); //TODO: break after the first help result found, not clear yet how to handle multiple requests for help within one single command (e.g. ??ev;??int). break; } } } void Worksheet::removeCurrentEntry() { qDebug()<<"removing current entry"; WorksheetEntry* entry=currentEntry(); if(!entry) return; // In case we just removed this if (entry->isAncestorOf(m_lastFocusedTextItem)) m_lastFocusedTextItem = nullptr; entry->startRemoving(); } EpsRenderer* Worksheet::epsRenderer() { return &m_epsRenderer; } QMenu* Worksheet::createContextMenu() { QMenu *menu = new QMenu(worksheetView()); connect(menu, SIGNAL(aboutToHide()), menu, SLOT(deleteLater())); return menu; } void Worksheet::populateMenu(QMenu *menu, QPointF pos) { WorksheetEntry* entry = entryAt(pos); if (entry && !entry->isAncestorOf(m_lastFocusedTextItem)) { WorksheetTextItem* item = qgraphicsitem_cast(itemAt(pos, QTransform())); if (item && item->isEditable()) m_lastFocusedTextItem = item; } if (!isRunning()) menu->addAction(QIcon::fromTheme(QLatin1String("system-run")), i18n("Evaluate Worksheet"), this, SLOT(evaluate()), 0); else menu->addAction(QIcon::fromTheme(QLatin1String("process-stop")), i18n("Interrupt"), this, SLOT(interrupt()), 0); menu->addSeparator(); if (entry) { QMenu* insert = new QMenu(menu); QMenu* insertBefore = new QMenu(menu); insert->addAction(QIcon::fromTheme(QLatin1String("run-build")), i18n("Command Entry"), entry, SLOT(insertCommandEntry())); insert->addAction(QIcon::fromTheme(QLatin1String("draw-text")), i18n("Text Entry"), entry, SLOT(insertTextEntry())); #ifdef Discount_FOUND insert->addAction(QIcon::fromTheme(QLatin1String("text-x-markdown")), i18n("Markdown Entry"), entry, SLOT(insertMarkdownEntry())); #endif #ifdef WITH_EPS insert->addAction(QIcon::fromTheme(QLatin1String("text-x-tex")), i18n("LaTeX Entry"), entry, SLOT(insertLatexEntry())); #endif insert->addAction(QIcon::fromTheme(QLatin1String("image-x-generic")), i18n("Image"), entry, SLOT(insertImageEntry())); insert->addAction(QIcon::fromTheme(QLatin1String("go-next-view-page")), i18n("Page Break"), entry, SLOT(insertPageBreakEntry())); insertBefore->addAction(QIcon::fromTheme(QLatin1String("run-build")), i18n("Command Entry"), entry, SLOT(insertCommandEntryBefore())); insertBefore->addAction(QIcon::fromTheme(QLatin1String("draw-text")), i18n("Text Entry"), entry, SLOT(insertTextEntryBefore())); #ifdef Discount_FOUND insertBefore->addAction(QIcon::fromTheme(QLatin1String("text-x-markdown")), i18n("Markdown Entry"), entry, SLOT(insertMarkdownEntryBefore())); #endif #ifdef WITH_EPS insertBefore->addAction(QIcon::fromTheme(QLatin1String("text-x-tex")), i18n("LaTeX Entry"), entry, SLOT(insertLatexEntryBefore())); #endif insertBefore->addAction(QIcon::fromTheme(QLatin1String("image-x-generic")), i18n("Image"), entry, SLOT(insertImageEntryBefore())); insertBefore->addAction(QIcon::fromTheme(QLatin1String("go-next-view-page")), i18n("Page Break"), entry, SLOT(insertPageBreakEntryBefore())); insert->setTitle(i18n("Insert Entry After")); insert->setIcon(QIcon::fromTheme(QLatin1String("edit-table-insert-row-below"))); insertBefore->setTitle(i18n("Insert Entry Before")); insertBefore->setIcon(QIcon::fromTheme(QLatin1String("edit-table-insert-row-above"))); menu->addMenu(insert); menu->addMenu(insertBefore); } else { menu->addAction(QIcon::fromTheme(QLatin1String("run-build")), i18n("Insert Command Entry"), this, SLOT(appendCommandEntry())); menu->addAction(QIcon::fromTheme(QLatin1String("draw-text")), i18n("Insert Text Entry"), this, SLOT(appendTextEntry())); #ifdef Discount_FOUND menu->addAction(QIcon::fromTheme(QLatin1String("text-x-markdown")), i18n("Insert Markdown Entry"), this, SLOT(appendMarkdownEntry())); #endif #ifdef WITH_EPS menu->addAction(QIcon::fromTheme(QLatin1String("text-x-tex")), i18n("Insert LaTeX Entry"), this, SLOT(appendLatexEntry())); #endif menu->addAction(QIcon::fromTheme(QLatin1String("image-x-generic")), i18n("Insert Image"), this, SLOT(appendImageEntry())); menu->addAction(QIcon::fromTheme(QLatin1String("go-next-view-page")), i18n("Insert Page Break"), this, SLOT(appendPageBreakEntry())); } } void Worksheet::contextMenuEvent(QGraphicsSceneContextMenuEvent *event) { if (m_readOnly) return; // forward the event to the items QGraphicsScene::contextMenuEvent(event); if (!event->isAccepted()) { event->accept(); QMenu *menu = createContextMenu(); populateMenu(menu, event->scenePos()); menu->popup(event->screenPos()); } } void Worksheet::mousePressEvent(QGraphicsSceneMouseEvent* event) { QGraphicsScene::mousePressEvent(event); /* if (event->button() == Qt::LeftButton && !focusItem() && lastEntry() && event->scenePos().y() > lastEntry()->y() + lastEntry()->size().height()) lastEntry()->focusEntry(WorksheetTextItem::BottomRight); */ if (!m_readOnly) updateEntryCursor(event); } void Worksheet::keyPressEvent(QKeyEvent *keyEvent) { if (m_readOnly) return; // If we choose entry by entry cursor and press text button (not modifiers, for example, like Control) if ((m_choosenCursorEntry || m_isCursorEntryAfterLastEntry) && !keyEvent->text().isEmpty()) addEntryFromEntryCursor(); QGraphicsScene::keyPressEvent(keyEvent); } void Worksheet::createActions(KActionCollection* collection) { // Mostly copied from KRichTextWidget::createActions(KActionCollection*) // It would be great if this wasn't necessary. // Text color QAction * action; /* This is "format-stroke-color" in KRichTextWidget */ action = new QAction(QIcon::fromTheme(QLatin1String("format-text-color")), i18nc("@action", "Text &Color..."), collection); action->setIconText(i18nc("@label text color", "Color")); action->setPriority(QAction::LowPriority); m_richTextActionList.append(action); collection->addAction(QLatin1String("format_text_foreground_color"), action); connect(action, SIGNAL(triggered()), this, SLOT(setTextForegroundColor())); // Text color action = new QAction(QIcon::fromTheme(QLatin1String("format-fill-color")), i18nc("@action", "Text &Highlight..."), collection); action->setPriority(QAction::LowPriority); m_richTextActionList.append(action); collection->addAction(QLatin1String("format_text_background_color"), action); connect(action, SIGNAL(triggered()), this, SLOT(setTextBackgroundColor())); // Font Family m_fontAction = new KFontAction(i18nc("@action", "&Font"), collection); m_richTextActionList.append(m_fontAction); collection->addAction(QLatin1String("format_font_family"), m_fontAction); connect(m_fontAction, SIGNAL(triggered(QString)), this, SLOT(setFontFamily(QString))); // Font Size m_fontSizeAction = new KFontSizeAction(i18nc("@action", "Font &Size"), collection); m_richTextActionList.append(m_fontSizeAction); collection->addAction(QLatin1String("format_font_size"), m_fontSizeAction); connect(m_fontSizeAction, SIGNAL(fontSizeChanged(int)), this, SLOT(setFontSize(int))); // Bold m_boldAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-text-bold")), i18nc("@action boldify selected text", "&Bold"), collection); m_boldAction->setPriority(QAction::LowPriority); QFont bold; bold.setBold(true); m_boldAction->setFont(bold); m_richTextActionList.append(m_boldAction); collection->addAction(QLatin1String("format_text_bold"), m_boldAction); collection->setDefaultShortcut(m_boldAction, Qt::CTRL + Qt::Key_B); connect(m_boldAction, SIGNAL(triggered(bool)), this, SLOT(setTextBold(bool))); // Italic m_italicAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-text-italic")), i18nc("@action italicize selected text", "&Italic"), collection); m_italicAction->setPriority(QAction::LowPriority); QFont italic; italic.setItalic(true); m_italicAction->setFont(italic); m_richTextActionList.append(m_italicAction); collection->addAction(QLatin1String("format_text_italic"), m_italicAction); collection->setDefaultShortcut(m_italicAction, Qt::CTRL + Qt::Key_I); connect(m_italicAction, SIGNAL(triggered(bool)), this, SLOT(setTextItalic(bool))); // Underline m_underlineAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-text-underline")), i18nc("@action underline selected text", "&Underline"), collection); m_underlineAction->setPriority(QAction::LowPriority); QFont underline; underline.setUnderline(true); m_underlineAction->setFont(underline); m_richTextActionList.append(m_underlineAction); collection->addAction(QLatin1String("format_text_underline"), m_underlineAction); collection->setDefaultShortcut(m_underlineAction, Qt::CTRL + Qt::Key_U); connect(m_underlineAction, SIGNAL(triggered(bool)), this, SLOT(setTextUnderline(bool))); // Strike m_strikeOutAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-text-strikethrough")), i18nc("@action", "&Strike Out"), collection); m_strikeOutAction->setPriority(QAction::LowPriority); m_richTextActionList.append(m_strikeOutAction); collection->addAction(QLatin1String("format_text_strikeout"), m_strikeOutAction); collection->setDefaultShortcut(m_strikeOutAction, Qt::CTRL + Qt::Key_L); connect(m_strikeOutAction, SIGNAL(triggered(bool)), this, SLOT(setTextStrikeOut(bool))); // Alignment QActionGroup *alignmentGroup = new QActionGroup(this); // Align left m_alignLeftAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-justify-left")), i18nc("@action", "Align &Left"), collection); m_alignLeftAction->setPriority(QAction::LowPriority); m_alignLeftAction->setIconText(i18nc("@label left justify", "Left")); m_richTextActionList.append(m_alignLeftAction); collection->addAction(QLatin1String("format_align_left"), m_alignLeftAction); connect(m_alignLeftAction, SIGNAL(triggered()), this, SLOT(setAlignLeft())); alignmentGroup->addAction(m_alignLeftAction); // Align center m_alignCenterAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-justify-center")), i18nc("@action", "Align &Center"), collection); m_alignCenterAction->setPriority(QAction::LowPriority); m_alignCenterAction->setIconText(i18nc("@label center justify", "Center")); m_richTextActionList.append(m_alignCenterAction); collection->addAction(QLatin1String("format_align_center"), m_alignCenterAction); connect(m_alignCenterAction, SIGNAL(triggered()), this, SLOT(setAlignCenter())); alignmentGroup->addAction(m_alignCenterAction); // Align right m_alignRightAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-justify-right")), i18nc("@action", "Align &Right"), collection); m_alignRightAction->setPriority(QAction::LowPriority); m_alignRightAction->setIconText(i18nc("@label right justify", "Right")); m_richTextActionList.append(m_alignRightAction); collection->addAction(QLatin1String("format_align_right"), m_alignRightAction); connect(m_alignRightAction, SIGNAL(triggered()), this, SLOT(setAlignRight())); alignmentGroup->addAction(m_alignRightAction); // Align justify m_alignJustifyAction = new KToggleAction(QIcon::fromTheme(QLatin1String("format-justify-fill")), i18nc("@action", "&Justify"), collection); m_alignJustifyAction->setPriority(QAction::LowPriority); m_alignJustifyAction->setIconText(i18nc("@label justify fill", "Justify")); m_richTextActionList.append(m_alignJustifyAction); collection->addAction(QLatin1String("format_align_justify"), m_alignJustifyAction); connect(m_alignJustifyAction, SIGNAL(triggered()), this, SLOT(setAlignJustify())); alignmentGroup->addAction(m_alignJustifyAction); /* // List style KSelectAction* selAction; selAction = new KSelectAction(QIcon::fromTheme("format-list-unordered"), i18nc("@title:menu", "List Style"), collection); QStringList listStyles; listStyles << i18nc("@item:inmenu no list style", "None") << i18nc("@item:inmenu disc list style", "Disc") << i18nc("@item:inmenu circle list style", "Circle") << i18nc("@item:inmenu square list style", "Square") << i18nc("@item:inmenu numbered lists", "123") << i18nc("@item:inmenu lowercase abc lists", "abc") << i18nc("@item:inmenu uppercase abc lists", "ABC"); selAction->setItems(listStyles); selAction->setCurrentItem(0); action = selAction; m_richTextActionList.append(action); collection->addAction("format_list_style", action); connect(action, SIGNAL(triggered(int)), this, SLOT(_k_setListStyle(int))); connect(action, SIGNAL(triggered()), this, SLOT(_k_updateMiscActions())); // Indent action = new QAction(QIcon::fromTheme("format-indent-more"), i18nc("@action", "Increase Indent"), collection); action->setPriority(QAction::LowPriority); m_richTextActionList.append(action); collection->addAction("format_list_indent_more", action); connect(action, SIGNAL(triggered()), this, SLOT(indentListMore())); connect(action, SIGNAL(triggered()), this, SLOT(_k_updateMiscActions())); // Dedent action = new QAction(QIcon::fromTheme("format-indent-less"), i18nc("@action", "Decrease Indent"), collection); action->setPriority(QAction::LowPriority); m_richTextActionList.append(action); collection->addAction("format_list_indent_less", action); connect(action, SIGNAL(triggered()), this, SLOT(indentListLess())); connect(action, SIGNAL(triggered()), this, SLOT(_k_updateMiscActions())); */ } WorksheetTextItem* Worksheet::lastFocusedTextItem() { return m_lastFocusedTextItem; } void Worksheet::updateFocusedTextItem(WorksheetTextItem* newItem) { // No need update and emit signals about editing actions in readonly // So support only copy action and reset selection if (m_readOnly) { if (m_lastFocusedTextItem && m_lastFocusedTextItem != newItem) { disconnect(this, SIGNAL(copy()), m_lastFocusedTextItem, SLOT(copy())); m_lastFocusedTextItem->clearSelection(); } if (newItem && m_lastFocusedTextItem != newItem) { connect(this, SIGNAL(copy()), newItem, SLOT(copy())); emit copyAvailable(newItem->isCopyAvailable()); } else if (!newItem) { emit copyAvailable(false); } m_lastFocusedTextItem = newItem; return; } if (m_lastFocusedTextItem && m_lastFocusedTextItem != newItem) { disconnect(m_lastFocusedTextItem, SIGNAL(undoAvailable(bool)), this, SIGNAL(undoAvailable(bool))); disconnect(m_lastFocusedTextItem, SIGNAL(redoAvailable(bool)), this, SIGNAL(redoAvailable(bool))); disconnect(this, SIGNAL(undo()), m_lastFocusedTextItem, SLOT(undo())); disconnect(this, SIGNAL(redo()), m_lastFocusedTextItem, SLOT(redo())); disconnect(m_lastFocusedTextItem, SIGNAL(cutAvailable(bool)), this, SIGNAL(cutAvailable(bool))); disconnect(m_lastFocusedTextItem, SIGNAL(copyAvailable(bool)), this, SIGNAL(copyAvailable(bool))); disconnect(m_lastFocusedTextItem, SIGNAL(pasteAvailable(bool)), this, SIGNAL(pasteAvailable(bool))); disconnect(this, SIGNAL(cut()), m_lastFocusedTextItem, SLOT(cut())); disconnect(this, SIGNAL(copy()), m_lastFocusedTextItem, SLOT(copy())); m_lastFocusedTextItem->clearSelection(); } if (newItem && m_lastFocusedTextItem != newItem) { setAcceptRichText(newItem->richTextEnabled()); emit undoAvailable(newItem->isUndoAvailable()); emit redoAvailable(newItem->isRedoAvailable()); connect(newItem, SIGNAL(undoAvailable(bool)), this, SIGNAL(undoAvailable(bool))); connect(newItem, SIGNAL(redoAvailable(bool)), this, SIGNAL(redoAvailable(bool))); connect(this, SIGNAL(undo()), newItem, SLOT(undo())); connect(this, SIGNAL(redo()), newItem, SLOT(redo())); emit cutAvailable(newItem->isCutAvailable()); emit copyAvailable(newItem->isCopyAvailable()); emit pasteAvailable(newItem->isPasteAvailable()); connect(newItem, SIGNAL(cutAvailable(bool)), this, SIGNAL(cutAvailable(bool))); connect(newItem, SIGNAL(copyAvailable(bool)), this, SIGNAL(copyAvailable(bool))); connect(newItem, SIGNAL(pasteAvailable(bool)), this, SIGNAL(pasteAvailable(bool))); connect(this, SIGNAL(cut()), newItem, SLOT(cut())); connect(this, SIGNAL(copy()), newItem, SLOT(copy())); } else if (!newItem) { emit undoAvailable(false); emit redoAvailable(false); emit cutAvailable(false); emit copyAvailable(false); emit pasteAvailable(false); } m_lastFocusedTextItem = newItem; } /*! * handles the paste action triggered in cantor_part. * Pastes into the last focused text item. * In case the "new entry"-cursor is currently shown, * a new entry is created first which the content will be pasted into. */ void Worksheet::paste() { if (m_choosenCursorEntry || m_isCursorEntryAfterLastEntry) addEntryFromEntryCursor(); m_lastFocusedTextItem->paste(); } void Worksheet::setRichTextInformation(const RichTextInfo& info) { m_boldAction->setChecked(info.bold); m_italicAction->setChecked(info.italic); m_underlineAction->setChecked(info.underline); m_strikeOutAction->setChecked(info.strikeOut); m_fontAction->setFont(info.font); if (info.fontSize > 0) m_fontSizeAction->setFontSize(info.fontSize); if (info.align & Qt::AlignLeft) m_alignLeftAction->setChecked(true); else if (info.align & Qt::AlignCenter) m_alignCenterAction->setChecked(true); else if (info.align & Qt::AlignRight) m_alignRightAction->setChecked(true); else if (info.align & Qt::AlignJustify) m_alignJustifyAction->setChecked(true); } void Worksheet::setAcceptRichText(bool b) { if (!m_readOnly) for(QAction * action : m_richTextActionList) action->setEnabled(b); } WorksheetTextItem* Worksheet::currentTextItem() { QGraphicsItem* item = focusItem(); if (!item) item = m_lastFocusedTextItem; while (item && item->type() != WorksheetTextItem::Type) item = item->parentItem(); return qgraphicsitem_cast(item); } void Worksheet::setTextForegroundColor() { WorksheetTextItem* item = currentTextItem(); if (item) item->setTextForegroundColor(); } void Worksheet::setTextBackgroundColor() { WorksheetTextItem* item = currentTextItem(); if (item) item->setTextBackgroundColor(); } void Worksheet::setTextBold(bool b) { WorksheetTextItem* item = currentTextItem(); if (item) item->setTextBold(b); } void Worksheet::setTextItalic(bool b) { WorksheetTextItem* item = currentTextItem(); if (item) item->setTextItalic(b); } void Worksheet::setTextUnderline(bool b) { WorksheetTextItem* item = currentTextItem(); if (item) item->setTextUnderline(b); } void Worksheet::setTextStrikeOut(bool b) { WorksheetTextItem* item = currentTextItem(); if (item) item->setTextStrikeOut(b); } void Worksheet::setAlignLeft() { WorksheetTextItem* item = currentTextItem(); if (item) item->setAlignment(Qt::AlignLeft); } void Worksheet::setAlignRight() { WorksheetTextItem* item = currentTextItem(); if (item) item->setAlignment(Qt::AlignRight); } void Worksheet::setAlignCenter() { WorksheetTextItem* item = currentTextItem(); if (item) item->setAlignment(Qt::AlignCenter); } void Worksheet::setAlignJustify() { WorksheetTextItem* item = currentTextItem(); if (item) item->setAlignment(Qt::AlignJustify); } void Worksheet::setFontFamily(const QString& font) { WorksheetTextItem* item = currentTextItem(); if (item) item->setFontFamily(font); } void Worksheet::setFontSize(int size) { WorksheetTextItem* item = currentTextItem(); if (item) item->setFontSize(size); } bool Worksheet::isShortcut(const QKeySequence& sequence) { return m_shortcuts.contains(sequence); } void Worksheet::registerShortcut(QAction* action) { for (auto& shortcut : action->shortcuts()) m_shortcuts.insert(shortcut, action); connect(action, SIGNAL(changed()), this, SLOT(updateShortcut())); } void Worksheet::updateShortcut() { QAction* action = qobject_cast(sender()); if (!action) return; // delete the old shortcuts of this action QList shortcuts = m_shortcuts.keys(action); for (auto& shortcut : shortcuts) m_shortcuts.remove(shortcut); // add the new shortcuts for (auto& shortcut : action->shortcuts()) m_shortcuts.insert(shortcut, action); } void Worksheet::dragEnterEvent(QGraphicsSceneDragDropEvent* event) { qDebug() << "enter"; if (m_dragEntry) event->accept(); else QGraphicsScene::dragEnterEvent(event); } void Worksheet::dragLeaveEvent(QGraphicsSceneDragDropEvent* event) { if (!m_dragEntry) { QGraphicsScene::dragLeaveEvent(event); return; } qDebug() << "leave"; event->accept(); if (m_placeholderEntry) { m_placeholderEntry->startRemoving(); m_placeholderEntry = nullptr; } } void Worksheet::dragMoveEvent(QGraphicsSceneDragDropEvent* event) { if (!m_dragEntry) { QGraphicsScene::dragMoveEvent(event); return; } QPointF pos = event->scenePos(); WorksheetEntry* entry = entryAt(pos); WorksheetEntry* prev = nullptr; WorksheetEntry* next = nullptr; if (entry) { if (pos.y() < entry->y() + entry->size().height()/2) { prev = entry->previous(); next = entry; } else if (pos.y() >= entry->y() + entry->size().height()/2) { prev = entry; next = entry->next(); } } else { WorksheetEntry* last = lastEntry(); if (last && pos.y() > last->y() + last->size().height()) { prev = last; next = nullptr; } } if (prev || next) { PlaceHolderEntry* oldPlaceHolder = m_placeholderEntry; if (prev && prev->type() == PlaceHolderEntry::Type && (!prev->aboutToBeRemoved() || prev->stopRemoving())) { m_placeholderEntry = qgraphicsitem_cast(prev); m_placeholderEntry->changeSize(m_dragEntry->size()); } else if (next && next->type() == PlaceHolderEntry::Type && (!next->aboutToBeRemoved() || next->stopRemoving())) { m_placeholderEntry = qgraphicsitem_cast(next); m_placeholderEntry->changeSize(m_dragEntry->size()); } else { m_placeholderEntry = new PlaceHolderEntry(this, QSizeF(0,0)); m_placeholderEntry->setPrevious(prev); m_placeholderEntry->setNext(next); if (prev) prev->setNext(m_placeholderEntry); else setFirstEntry(m_placeholderEntry); if (next) next->setPrevious(m_placeholderEntry); else setLastEntry(m_placeholderEntry); m_placeholderEntry->changeSize(m_dragEntry->size()); } if (oldPlaceHolder && oldPlaceHolder != m_placeholderEntry) oldPlaceHolder->startRemoving(); updateLayout(); } const QPoint viewPos = worksheetView()->mapFromScene(pos); const int viewHeight = worksheetView()->viewport()->height(); if ((viewPos.y() < 10 || viewPos.y() > viewHeight - 10) && !m_dragScrollTimer) { m_dragScrollTimer = new QTimer(this); m_dragScrollTimer->setSingleShot(true); m_dragScrollTimer->setInterval(100); connect(m_dragScrollTimer, SIGNAL(timeout()), this, SLOT(updateDragScrollTimer())); m_dragScrollTimer->start(); } event->accept(); } void Worksheet::dropEvent(QGraphicsSceneDragDropEvent* event) { if (!m_dragEntry) QGraphicsScene::dropEvent(event); event->accept(); } void Worksheet::updateDragScrollTimer() { if (!m_dragScrollTimer) return; const QPoint viewPos = worksheetView()->viewCursorPos(); const QWidget* viewport = worksheetView()->viewport(); const int viewHeight = viewport->height(); if (!m_dragEntry || !(viewport->rect().contains(viewPos)) || (viewPos.y() >= 10 && viewPos.y() <= viewHeight - 10)) { delete m_dragScrollTimer; m_dragScrollTimer = nullptr; return; } if (viewPos.y() < 10) worksheetView()->scrollBy(-10*(10 - viewPos.y())); else worksheetView()->scrollBy(10*(viewHeight - viewPos.y())); m_dragScrollTimer->start(); } void Worksheet::updateEntryCursor(QGraphicsSceneMouseEvent* event) { // determine the worksheet entry near which the entry cursor will be shown resetEntryCursor(); if (event->button() == Qt::LeftButton && !focusItem()) { const qreal y = event->scenePos().y(); for (WorksheetEntry* entry = firstEntry(); entry; entry = entry->next()) { if (entry == firstEntry() && y < entry->y() ) { m_choosenCursorEntry = firstEntry(); break; } else if (entry->y() < y && (entry->next() && y < entry->next()->y())) { m_choosenCursorEntry = entry->next(); break; } else if (entry->y() < y && entry == lastEntry()) { m_isCursorEntryAfterLastEntry = true; break; } } } if (m_choosenCursorEntry || m_isCursorEntryAfterLastEntry) drawEntryCursor(); } void Worksheet::addEntryFromEntryCursor() { qDebug() << "Add new entry from entry cursor"; if (m_isCursorEntryAfterLastEntry) insertCommandEntry(lastEntry()); else insertCommandEntryBefore(m_choosenCursorEntry); resetEntryCursor(); } void Worksheet::animateEntryCursor() { if ((m_choosenCursorEntry || m_isCursorEntryAfterLastEntry) && m_entryCursorItem) m_entryCursorItem->setVisible(!m_entryCursorItem->isVisible()); } void Worksheet::resetEntryCursor() { m_choosenCursorEntry = nullptr; m_isCursorEntryAfterLastEntry = false; m_entryCursorItem->hide(); } void Worksheet::drawEntryCursor() { if (m_entryCursorItem && (m_choosenCursorEntry || (m_isCursorEntryAfterLastEntry && lastEntry()))) { qreal x; qreal y; if (m_isCursorEntryAfterLastEntry) { x = lastEntry()->x(); y = lastEntry()->y() + lastEntry()->size().height() - (EntryCursorWidth - 1); } else { x = m_choosenCursorEntry->x(); y = m_choosenCursorEntry->y(); } m_entryCursorItem->setLine(x,y,x+EntryCursorLength,y); m_entryCursorItem->show(); } } void Worksheet::setType(Worksheet::Type type) { m_type = type; } Worksheet::Type Worksheet::type() const { return m_type; }