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// SPDX-FileCopyrightText: 2022 Gary Wang <wzc782970009@gmail.com>
//
// SPDX-License-Identifier: MIT
#include "metadatadialog.h"
#include <QDialogButtonBox>
#include <QPainter>
#include <QStyledItemDelegate>
#include <QTreeView>
#include <QVBoxLayout>
#include <QHeaderView>
#include "metadatamodel.h"
class PropertyTreeView : public QTreeView
{
public:
explicit PropertyTreeView(QWidget* parent) : QTreeView(parent) {}
~PropertyTreeView() {}
protected:
void rowsInserted(const QModelIndex& parent, int start, int end) override
{
QTreeView::rowsInserted(parent, start, end);
if (!parent.isValid()) {
// we are inserting a section group
for (int row = start; row <= end; ++row) {
setupSection(row);
}
} else {
// we are inserting a property
setRowHidden(parent.row(), QModelIndex(), false);
}
}
void reset() override
{
QTreeView::reset();
if (model()) {
for (int row = 0; row < model()->rowCount(); ++row) {
setupSection(row);
}
}
}
private:
void setupSection(int row)
{
expand(model()->index(row, 0));
setFirstColumnSpanned(row, QModelIndex(), true);
setRowHidden(row, QModelIndex(), !model()->hasChildren(model()->index(row, 0)));
}
};
class PropertyTreeItemDelegate : public QStyledItemDelegate
{
public:
PropertyTreeItemDelegate(QObject* parent)
: QStyledItemDelegate(parent)
{}
protected:
void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override
{
QStyleOptionViewItem opt = option;
if (!index.parent().isValid()) {
opt.font.setBold(true);
opt.features.setFlag(QStyleOptionViewItem::Alternate);
}
QStyledItemDelegate::paint(painter, opt, index);
}
};
MetadataDialog::MetadataDialog(QWidget *parent)
: QDialog(parent)
, m_treeView(new PropertyTreeView(this))
{
m_treeView->setRootIsDecorated(false);
m_treeView->setIndentation(0);
m_treeView->setItemDelegate(new PropertyTreeItemDelegate(m_treeView));
m_treeView->header()->resizeSection(0, sizeHint().width() / 2);
setWindowTitle(tr("Image Metadata"));
QDialogButtonBox * buttonBox = new QDialogButtonBox(QDialogButtonBox::Close);
setLayout(new QVBoxLayout);
layout()->addWidget(m_treeView);
layout()->addWidget(buttonBox);
connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::close);
setWindowFlag(Qt::WindowContextHelpButtonHint, false);
}
MetadataDialog::~MetadataDialog()
{
}
void MetadataDialog::setMetadataModel(MetadataModel * model)
{
m_treeView->setModel(model);
}
QSize MetadataDialog::sizeHint() const
{
return QSize(520, 350);
}
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