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Items can be added to model dynamically.

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This commit is contained in:
Bent Witthold
2025-12-08 13:25:02 +01:00
parent 144460b5aa
commit 4c906099eb
7 changed files with 128 additions and 9 deletions
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39
model/tablemodel.cpp
View File

@ -1,13 +1,13 @@
#include "tablemodel.h"
#include "../formats/jsonparser.h"
#include "modelitem.h"
enum UserRoles { NameRole = Qt::UserRole + 1, DescriptionRole, InfoRole, AmountRole, FactorRole };
static const QHash<int, QByteArray> ROLE_NAMES = {{NameRole, "Name"},
{DescriptionRole, "Description"},
{InfoRole, "Info"},
{AmountRole, "Amount"},
{FactorRole, "Factor"}};
QHash<int, QByteArray> TableModel::ROLE_NAMES = {{NameRole, "Name"},
{DescriptionRole, "Description"},
{InfoRole, "Info"},
{AmountRole, "Amount"},
{FactorRole, "Factor"}};
TableModel::TableModel(QObject* parent)
: QAbstractTableModel{parent} {
@ -28,6 +28,8 @@ Qt::ItemFlags TableModel::flags(const QModelIndex& index) const {
return Qt::ItemIsEditable | QAbstractTableModel::flags(index);
}
QHash<int, QByteArray> TableModel::roleNames() const { return ROLE_NAMES; }
int TableModel::rowCount(const QModelIndex& parent) const { return m_items.size(); }
int TableModel::columnCount(const QModelIndex& parent) const { return ROLE_NAMES.size(); }
@ -80,6 +82,31 @@ bool TableModel::setData(const QModelIndex& index, const QVariant& value, int ro
// bool TableModel::setItemData(const QModelIndex& index, const QMap<int, QVariant>& roles) {}
void TableModel::appendItems(const QByteArray& jsonDoc) { insertItems(-1, jsonDoc, QModelIndex()); }
void TableModel::insertItems(int startPosition,
const QByteArray& jsonDoc,
const QModelIndex& parentIndex) {
qInfo() << "Inserting item(s) into model...";
if (parentIndex != QModelIndex()) {
qWarning() << "Using invalid parent index (no child support for now)";
}
if (startPosition == -1 || startPosition > m_items.size()) {
/// Appending item(s)
startPosition = m_items.size();
}
QList<QHash<int, QVariant>> valueList = JsonParser::toItemValuesList(jsonDoc);
const int nRows = valueList.size();
beginInsertRows(QModelIndex(), startPosition, startPosition + nRows - 1);
for (int row = 0; row < nRows; ++row) {
const int rowPosition = startPosition + row;
shared_ptr<ModelItem> item = make_unique<ModelItem>(valueList.at(row));
m_items.insert(rowPosition, std::move(item));
}
endInsertRows();
}
int TableModel::getRoleForColumn(const int column) const {
switch (column) {
case 0:

12
model/tablemodel.h
View File

@ -8,13 +8,19 @@ class ModelItem;
using namespace std;
class TableModel : public QAbstractTableModel {
Q_OBJECT
public:
enum UserRoles { NameRole = Qt::UserRole + 1, DescriptionRole, InfoRole, AmountRole, FactorRole };
static QHash<int, QByteArray> ROLE_NAMES;
explicit TableModel(QObject* parent = nullptr);
/// QAbstractItemModel interface
Qt::ItemFlags flags(const QModelIndex& index) const override;
QHash<int, QByteArray> roleNames() const override;
int rowCount(const QModelIndex& parent) const override;
int rowCount(const QModelIndex& parent = QModelIndex()) const override;
int columnCount(const QModelIndex& parent) const override;
QVariant data(const QModelIndex& index, int role) const override;
QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
@ -22,6 +28,10 @@ class TableModel : public QAbstractTableModel {
bool setData(const QModelIndex& index, const QVariant& value, int role) override;
// bool setItemData(const QModelIndex& index, const QMap<int, QVariant>& roles) override;
public slots:
void appendItems(const QByteArray& jsonDoc);
void insertItems(int startPosition, const QByteArray& jsonDoc, const QModelIndex& parentIndex);
private:
/// members
QList<shared_ptr<ModelItem>> m_items;