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Statistics widget

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This commit is contained in:
Jakub Melka
2021-06-19 18:57:02 +02:00
parent b8464ed4fa
commit 97f838e733
6 changed files with 282 additions and 3 deletions
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125
Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectstatisticsdialog.cpp
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@ -28,9 +28,16 @@ ObjectStatisticsDialog::ObjectStatisticsDialog(const pdf::PDFDocument* document,
{
ui->setupUi(this);
ui->comboBox->addItem(tr("Statistics by Object Function"), int(ByObjectClass));
ui->comboBox->addItem(tr("Statistics by Object Type"), int(ByObjectType));
ui->comboBox->setCurrentIndex(ui->comboBox->findData(int(ByObjectClass), Qt::UserRole, Qt::MatchExactly));
connect(ui->comboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &ObjectStatisticsDialog::updateStatisticsWidget);
pdf::PDFObjectClassifier classifier;
classifier.classify(document);
m_statistics = classifier.calculateStatistics(document);
updateStatisticsWidget();
}
ObjectStatisticsDialog::~ObjectStatisticsDialog()
@ -38,4 +45,122 @@ ObjectStatisticsDialog::~ObjectStatisticsDialog()
delete ui;
}
void ObjectStatisticsDialog::updateStatisticsWidget()
{
StatisticsGraphWidget::Statistics statistics;
QLocale locale;
std::array colors = {
Qt::green,
Qt::red,
Qt::blue,
Qt::cyan,
Qt::magenta,
Qt::yellow,
Qt::darkGreen,
Qt::darkRed,
Qt::darkBlue,
Qt::darkCyan,
Qt::darkMagenta,
Qt::darkYellow
};
const StatisticsType statisticsType = static_cast<StatisticsType>(ui->comboBox->currentData().toInt());
switch (statisticsType)
{
case pdfplugin::ObjectStatisticsDialog::ByObjectClass:
{
statistics.title = tr("Statistics by Object Class");
statistics.headers = QStringList() << tr("Class") << tr("Percentage [%]") << tr("Count [#]") << tr("Space Usage [bytes]");
size_t colorId = 0;
qint64 totalBytesCount = 0;
for (const auto& item : m_statistics.statistics)
{
totalBytesCount += item.second.bytes;
}
auto addItem = [&, this](pdf::PDFObjectClassifier::Type type, QString classText)
{
auto it = m_statistics.statistics.find(type);
if (it == m_statistics.statistics.cend())
{
// Jakub Melka: no type found
return;
}
const pdf::PDFObjectClassifier::StatisticsItem& statisticsItem = it->second;
qreal percentage = qreal(100.0) * qreal(statisticsItem.bytes) / qreal(totalBytesCount);
StatisticsGraphWidget::StatisticsItem item;
item.portion = percentage / qreal(100.0);
item.color = colors[colorId++ % colors.size()];
item.texts = QStringList() << classText << locale.toString(percentage) << locale.toString(statisticsItem.count) << locale.toString(statisticsItem.bytes);
statistics.items.emplace_back(qMove(item));
};
addItem(pdf::PDFObjectClassifier::Page, tr("Page"));
addItem(pdf::PDFObjectClassifier::ContentStream, tr("Content Stream"));
addItem(pdf::PDFObjectClassifier::GraphicState, tr("Graphic State"));
addItem(pdf::PDFObjectClassifier::ColorSpace, tr("Color Space"));
addItem(pdf::PDFObjectClassifier::Pattern, tr("Pattern"));
addItem(pdf::PDFObjectClassifier::Shading, tr("Shading"));
addItem(pdf::PDFObjectClassifier::Image, tr("Image"));
addItem(pdf::PDFObjectClassifier::Form, tr("Form"));
addItem(pdf::PDFObjectClassifier::Font, tr("Font"));
addItem(pdf::PDFObjectClassifier::Action, tr("Action"));
addItem(pdf::PDFObjectClassifier::Annotation, tr("Annotation"));
addItem(pdf::PDFObjectClassifier::None, tr("Other"));
break;
}
case pdfplugin::ObjectStatisticsDialog::ByObjectType:
{
statistics.title = tr("Statistics by Object Type");
statistics.headers = QStringList() << tr("Type") << tr("Percentage [%]") << tr("Count [#]");
qint64 totalObjectCount = 0;
for (pdf::PDFObject::Type type : pdf::PDFObject::getTypes())
{
const qint64 currentObjectCount = m_statistics.objectCountByType[size_t(type)];
totalObjectCount += currentObjectCount;
}
if (totalObjectCount > 0)
{
size_t colorId = 0;
for (pdf::PDFObject::Type type : pdf::PDFObject::getTypes())
{
const qint64 currentObjectCount = m_statistics.objectCountByType[size_t(type)];
if (currentObjectCount == 0)
{
continue;
}
qreal percentage = qreal(100.0) * qreal(currentObjectCount) / qreal(totalObjectCount);
StatisticsGraphWidget::StatisticsItem item;
item.portion = percentage / qreal(100.0);
item.color = colors[colorId++ % colors.size()];
item.texts = QStringList() << pdf::PDFObjectUtils::getObjectTypeName(type) << locale.toString(percentage) << locale.toString(currentObjectCount);
statistics.items.emplace_back(qMove(item));
}
}
break;
}
default:
Q_ASSERT(false);
break;
}
ui->graphWidget->setStatistics(qMove(statistics));
}
} // namespace pdfplugin