qt/LedOK/QXlsx/source/xlsxchartsheet.cpp
2025-06-27 22:06:33 +08:00

147 lines
3.8 KiB
C++

// xlsxchartsheet.cpp
#include "xlsxchartsheet.h"
#include "xlsxchart.h"
#include "xlsxchartsheet_p.h"
#include "xlsxdrawing_p.h"
#include "xlsxdrawinganchor_p.h"
#include "xlsxutility_p.h"
#include "xlsxworkbook.h"
#include <QDir>
#include <QXmlStreamReader>
#include <QXmlStreamWriter>
QT_BEGIN_NAMESPACE_XLSX
ChartsheetPrivate::ChartsheetPrivate(Chartsheet *p, Chartsheet::CreateFlag flag)
: AbstractSheetPrivate(p, flag)
, chart(nullptr)
{
}
ChartsheetPrivate::~ChartsheetPrivate()
{
}
/*!
\class Chartsheet
\inmodule QtXlsx
\brief Represent one chartsheet in the workbook.
*/
/*!
* \internal
*/
Chartsheet::Chartsheet(const QString &name, int id, Workbook *workbook, CreateFlag flag)
: AbstractSheet(name, id, workbook, new ChartsheetPrivate(this, flag))
{
setSheetType(ST_ChartSheet);
if (flag == Chartsheet::F_NewFromScratch) {
d_func()->drawing = std::make_shared<Drawing>(this, flag);
auto anchor = new DrawingAbsoluteAnchor(drawing(), DrawingAnchor::Picture);
anchor->pos = QPoint(0, 0);
anchor->ext = QSize(9293679, 6068786);
auto chart = std::shared_ptr<Chart>(new Chart(this, flag));
chart->setChartType(Chart::CT_BarChart);
anchor->setObjectGraphicFrame(chart);
d_func()->chart = chart.get();
}
}
/*!
* \internal
*
* Make a copy of this sheet.
*/
Chartsheet *Chartsheet::copy(const QString &distName, int distId) const
{
//: Todo
Q_UNUSED(distName)
Q_UNUSED(distId)
return nullptr;
}
/*!
* Destroys this workssheet.
*/
Chartsheet::~Chartsheet()
{
}
/*!
* Returns the chart object of the sheet.
*/
Chart *Chartsheet::chart()
{
Q_D(Chartsheet);
return d->chart;
}
void Chartsheet::saveToXmlFile(QIODevice *device) const
{
Q_D(const Chartsheet);
d->relationships->clear();
QXmlStreamWriter writer(device);
writer.writeStartDocument(QStringLiteral("1.0"), true);
writer.writeDefaultNamespace(
QStringLiteral("http://schemas.openxmlformats.org/spreadsheetml/2006/main"));
writer.writeNamespace(
QStringLiteral("http://schemas.openxmlformats.org/officeDocument/2006/relationships"),
QStringLiteral("r"));
writer.writeStartElement(QStringLiteral("chartsheet"));
writer.writeStartElement(QStringLiteral("sheetViews"));
writer.writeEmptyElement(QStringLiteral("sheetView"));
writer.writeAttribute(QStringLiteral("workbookViewId"), QString::number(0));
writer.writeAttribute(QStringLiteral("zoomToFit"), QStringLiteral("1"));
writer.writeEndElement(); // sheetViews
int idx = d->workbook->drawings().indexOf(d->drawing.get());
d->relationships->addWorksheetRelationship(
QStringLiteral("/drawing"), QStringLiteral("../drawings/drawing%1.xml").arg(idx + 1));
writer.writeEmptyElement(QStringLiteral("drawing"));
writer.writeAttribute(QStringLiteral("r:id"),
QStringLiteral("rId%1").arg(d->relationships->count()));
writer.writeEndElement(); // chartsheet
writer.writeEndDocument();
}
bool Chartsheet::loadFromXmlFile(QIODevice *device)
{
Q_D(Chartsheet);
QXmlStreamReader reader(device);
while (!reader.atEnd()) {
reader.readNextStartElement();
if (reader.tokenType() == QXmlStreamReader::StartElement) {
if (reader.name() == QLatin1String("drawing")) {
QString rId = reader.attributes().value(QStringLiteral("r:id")).toString();
QString name = d->relationships->getRelationshipById(rId).target;
const auto parts = splitPath(filePath());
QString path = QDir::cleanPath(parts.first() + QLatin1String("/") + name);
d->drawing = std::make_shared<Drawing>(this, F_LoadFromExists);
d->drawing->setFilePath(path);
}
}
}
return true;
}
QT_END_NAMESPACE_XLSX