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Refactored ItemDetailMapper to encapsulate widget creation and their mappings into functions to be able to iterate over meta data to auto generate them. (Only working for string roles for now)

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Bent Witthold
2026-03-02 14:09:55 +01:00
parent d56af7231c
commit 0e7f803d42
3 changed files with 123 additions and 92 deletions
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189
views/itemdetailmapper.cpp
View File

@ -12,7 +12,7 @@
#include <QTableView>
#include "model/metadata.h"
ItemDetailMapper::ItemDetailMapper(QWidget* parent)
ItemDetailMapper::ItemDetailMapper(QTableView* tableView, QWidget* parent)
: QWidget{parent} {
/// model mapping
m_mapper = std::make_unique<QDataWidgetMapper>(this);
@ -25,85 +25,17 @@ ItemDetailMapper::ItemDetailMapper(QWidget* parent)
// m_mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
m_mapper->setSubmitPolicy(QDataWidgetMapper::AutoSubmit);
/// model mapping buttons
m_nextButton = new QPushButton(tr("Ne&xt"));
m_previousButton = new QPushButton(tr("&Previous"));
connect(m_previousButton, &QAbstractButton::clicked, this, &ItemDetailMapper::toPrevious);
connect(m_nextButton, &QAbstractButton::clicked, this, &ItemDetailMapper::toNext);
/// the individual widgets
// REFACTOR deduce label names and types from meta data & use a factory
m_nameLabel = new QLabel("&Name");
m_nameEdit = new QLineEdit();
m_nameLabel->setBuddy(m_nameEdit);
m_descriptionLabel = new QLabel("&Description");
m_descriptionEdit = new QLineEdit();
m_descriptionLabel->setBuddy(m_descriptionEdit);
m_infoLabel = new QLabel("&Info");
m_infoEdit = new QLineEdit();
m_infoLabel->setBuddy(m_infoEdit);
m_typeLabel = new QLabel(GET_HEADER_FOR_COLUMN(3));
m_typeBox = new QComboBox();
m_typeLabel->setBuddy(m_typeBox);
m_typeModel = new QStringListModel(TYPES, this);
m_typeBox->setModel(m_typeModel);
m_amountLabel = new QLabel("&Amount");
m_amountBox = new QSpinBox();
m_amountBox->setMaximum(1000);
m_amountLabel->setBuddy(m_amountBox);
m_factorLabel = new QLabel("&Factor");
m_factorBox = new QDoubleSpinBox();
m_factorBox->setMaximum(1000);
m_factorLabel->setBuddy(m_factorBox);
QGridLayout* layout = new QGridLayout();
layout->addWidget(m_nameLabel, 0, 0, 1, 1);
layout->addWidget(m_nameEdit, 0, 1, 1, 1);
layout->addWidget(m_descriptionLabel, 1, 0, 1, 1);
layout->addWidget(m_descriptionEdit, 1, 1, 1, 1);
layout->addWidget(m_infoLabel, 2, 0, 1, 1);
layout->addWidget(m_infoEdit, 2, 1, 1, 1);
layout->addWidget(m_typeLabel, 3, 0, 1, 1);
layout->addWidget(m_typeBox, 3, 1, 1, 1);
layout->addWidget(m_amountLabel, 4, 0, 1, 1);
layout->addWidget(m_amountBox, 4, 1, 1, 1);
layout->addWidget(m_factorLabel, 5, 0, 1, 1);
layout->addWidget(m_factorBox, 5, 1, 1, 1);
layout->addWidget(m_previousButton, 6, 0, 1, 1);
layout->addWidget(m_nextButton, 6, 1, 1, 1);
setLayout(layout);
}
void ItemDetailMapper::setModelMappings(QTableView* tableView) {
qDebug() << "Setting model...";
m_tableView = tableView;
m_model = tableView->model();
m_selectionModel = tableView->selectionModel();
m_mapper->setModel(m_model);
m_mapper->addMapping(m_nameEdit, 0);
m_mapper->addMapping(m_descriptionEdit, 1);
m_mapper->addMapping(m_infoEdit, 2);
m_mapper->addMapping(m_typeBox, 3, "currentText");
m_mapper->addMapping(m_amountBox, 4);
m_mapper->addMapping(m_factorBox, 5);
m_mapper->setCurrentIndex(m_selectionModel->currentIndex().row());
setupNavigationButtons();
setupWidgets();
connect(m_model, &QAbstractItemModel::rowsInserted, this, &ItemDetailMapper::rowsInserted);
connect(m_model, &QAbstractItemModel::rowsRemoved, this, &ItemDetailMapper::rowsRemoved);
connect(m_selectionModel, &QItemSelectionModel::currentChanged, this,
&ItemDetailMapper::onCurrentIndexChanged);
updateButtons(m_selectionModel->currentIndex().row());
setupConnections();
}
bool ItemDetailMapper::submit() { return m_mapper->submit(); }
@ -126,13 +58,7 @@ void ItemDetailMapper::rowsInserted(const QModelIndex& parent, int start, int en
void ItemDetailMapper::rowsRemoved(const QModelIndex& parent, int start, int end) {
if (m_model->rowCount() == 0) {
setEnabled(false);
m_nameEdit->clear();
m_descriptionEdit->clear();
m_infoEdit->clear();
m_amountBox->clear();
m_factorBox->clear();
clearEditWidgets();
}
updateButtons(m_mapper->currentIndex());
@ -167,3 +93,108 @@ void ItemDetailMapper::emitContentChanged(const QModelIndex& currentIndex) {
}
emit contentChanged(toStringText);
}
void ItemDetailMapper::setupConnections() {
m_mapper->setCurrentIndex(m_selectionModel->currentIndex().row());
connect(m_model, &QAbstractItemModel::rowsInserted, this, &ItemDetailMapper::rowsInserted);
connect(m_model, &QAbstractItemModel::rowsRemoved, this, &ItemDetailMapper::rowsRemoved);
connect(m_selectionModel, &QItemSelectionModel::currentChanged, this,
&ItemDetailMapper::onCurrentIndexChanged);
updateButtons(m_selectionModel->currentIndex().row());
}
void ItemDetailMapper::setupNavigationButtons() {
m_nextButton = new QPushButton(tr("Ne&xt"));
m_previousButton = new QPushButton(tr("&Previous"));
connect(m_previousButton, &QAbstractButton::clicked, this, &ItemDetailMapper::toPrevious);
connect(m_nextButton, &QAbstractButton::clicked, this, &ItemDetailMapper::toNext);
}
void ItemDetailMapper::setupWidgets() {
m_layout = new QGridLayout();
addWidgetsWithMapping(0);
addWidgetsWithMapping(1);
addWidgetsWithMapping(2);
m_typeLabel = new QLabel(GET_HEADER_FOR_COLUMN(3));
m_typeBox = new QComboBox();
m_typeLabel->setBuddy(m_typeBox);
m_typeModel = new QStringListModel(TYPES, this);
m_typeBox->setModel(m_typeModel);
m_layout->addWidget(m_typeLabel, 3, 0);
m_layout->addWidget(m_typeBox, 3, 1);
m_mapper->addMapping(m_typeBox, 3, "currentText");
m_amountLabel = new QLabel("&Amount");
m_amountBox = new QSpinBox();
m_amountBox->setMaximum(1000);
m_amountLabel->setBuddy(m_amountBox);
m_layout->addWidget(m_amountLabel, 4, 0);
m_layout->addWidget(m_amountBox, 4, 1);
m_mapper->addMapping(m_amountBox, 4);
m_factorLabel = new QLabel("&Factor");
m_factorBox = new QDoubleSpinBox();
m_factorBox->setMaximum(1000);
m_factorLabel->setBuddy(m_factorBox);
m_layout->addWidget(m_factorLabel, 5, 0);
m_layout->addWidget(m_factorBox, 5, 1);
m_mapper->addMapping(m_factorBox, 5);
const int nRows = m_layout->rowCount();
m_layout->addWidget(m_previousButton, nRows, 0);
m_layout->addWidget(m_nextButton, nRows, 1);
setLayout(m_layout);
}
void ItemDetailMapper::addWidgetsWithMapping(const int column) {
QPair<QWidget*, QWidget*> widgetPair0 = createWidgetPairForColumn(column);
QWidget* control = widgetPair0.second;
m_layout->addWidget(widgetPair0.first, column, 0);
m_layout->addWidget(control, column, 1);
m_mapper->addMapping(control, column);
editControls.append(control);
}
QPair<QWidget*, QWidget*> ItemDetailMapper::createWidgetPairForColumn(const int column) {
const UserRoles role = GET_ROLE_FOR_COLUMN(column);
QWidget* edit;
if (STRING_ROLES.contains(role)) {
edit = new QLineEdit();
} else {
qCritical()
<< QString("Only string roles are supported yet. But tried with role %1!!!").arg(role);
qDebug() << "Using line edit as well and pretend it's a string role...";
edit = new QLineEdit();
}
const QString string = QString("&%1").arg(GET_HEADER_FOR_COLUMN(column));
QLabel* label = new QLabel(string);
label->setBuddy(edit);
return QPair<QWidget*, QWidget*>(label, edit);
}
void ItemDetailMapper::clearEditWidgets() {
setEnabled(false);
clearLineEdit(0);
clearLineEdit(1);
clearLineEdit(2);
m_typeBox->setCurrentIndex(m_typeBox->count() - 1);
m_amountBox->clear();
m_factorBox->clear();
}
void ItemDetailMapper::clearLineEdit(const int column) {
QLineEdit* lineEdit = dynamic_cast<QLineEdit*>(editControls[column]);
if (lineEdit) {
lineEdit->clear();
}
}

23
views/itemdetailmapper.h
View File

@ -6,6 +6,7 @@
#include <QStringListModel>
#include <QWidget>
class QGridLayout;
class QLabel;
class QLineEdit;
class QDoubleSpinBox;
@ -18,9 +19,7 @@ class QTableView;
class ItemDetailMapper : public QWidget {
Q_OBJECT
public:
explicit ItemDetailMapper(QWidget* parent = nullptr);
void setModelMappings(QTableView* tableView);
explicit ItemDetailMapper(QTableView* tableView, QWidget* parent = nullptr);
bool submit();
void revert();
@ -47,14 +46,8 @@ class ItemDetailMapper : public QWidget {
std::unique_ptr<QDataWidgetMapper> m_mapper;
/// GUI elements
QLabel* m_nameLabel = nullptr;
QLineEdit* m_nameEdit = nullptr;
QLabel* m_descriptionLabel = nullptr;
QLineEdit* m_descriptionEdit = nullptr;
QLabel* m_infoLabel = nullptr;
QLineEdit* m_infoEdit = nullptr;
QGridLayout* m_layout;
QList<QWidget*> editControls;
QLabel* m_typeLabel;
QComboBox* m_typeBox;
@ -68,6 +61,14 @@ class ItemDetailMapper : public QWidget {
QPushButton* m_nextButton;
QPushButton* m_previousButton;
void setupConnections();
void setupLayout();
void setupWidgets();
void addWidgetsWithMapping(const int row);
QPair<QWidget*, QWidget*> createWidgetPairForColumn(const int column);
void clearEditWidgets();
};
#endif // ITEMDETAILMAPPER_H