bent/GenericQtClientWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Using QDataWidgetMapper in ItemDetailMapper to work with the model data (current index of the TableView).

Browse Source
This commit is contained in:
Bent Witthold
2025-12-22 11:21:44 +01:00
parent 8d523bb5bc
commit b3f83ccdb0
6 changed files with 185 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
dialogs/edititemdialog.cpp
View File

@ -4,8 +4,9 @@
#include "../views/itemdetailmapper.h"
EditItemDialog::EditItemDialog(QWidget* parent)
: AbstractDialog(parent) {}
EditItemDialog::EditItemDialog(QTableView* tableView, QWidget* parent)
: AbstractDialog(parent)
, m_tableView(tableView) {}
void EditItemDialog::createContent() {
if (m_contentContainer) {
@ -14,7 +15,18 @@ void EditItemDialog::createContent() {
setWindowTitle(tr("Edit item..."));
m_contentContainer = new ItemDetailMapper(this);
m_detailMapper = new ItemDetailMapper(this);
m_detailMapper->setModelMappings(m_tableView);
m_contentContainer = m_detailMapper;
m_outerLayout->insertWidget(0, m_contentContainer);
void EditItemDialog::accept() {
m_detailMapper->submit();
QDialog::accept();
}
void EditItemDialog::reject() {
m_detailMapper->revert();
QDialog::reject();
}

12
dialogs/edititemdialog.h
View File

@ -7,16 +7,26 @@ class QDoubleSpinBox;
class QLineEdit;
class QSpinBox;
class QLabel;
class QTableView;
class ItemDetailMapper;
class EditItemDialog : public AbstractDialog {
Q_OBJECT
public:
EditItemDialog(QWidget* parent = nullptr);
EditItemDialog(QTableView* tableView, QWidget* parent = nullptr);
/// AbstractDialog interface
void createContent() override;
public slots:
void accept() override;
void reject() override;
private:
QTableView* m_tableView = nullptr;
ItemDetailMapper* m_detailMapper;
QLabel* m_nameLabel = nullptr;
QLineEdit* m_nameEdit = nullptr;

37
mainwindow.cpp
View File

@ -53,10 +53,13 @@ MainWindow::MainWindow(QWidget* parent)
connect(this, &MainWindow::checkForUpdates, this,
&MainWindow::on_actionCheck_for_update_triggered, Qt::QueuedConnection);
connect(ui->tableView->selectionModel(), &QItemSelectionModel::selectionChanged, this,
&MainWindow::onSelectionChanged);
// connect(ui->tableView->selectionModel(), &QItemSelectionModel::selectionChanged, this,
// &MainWindow::onSelectionChanged);
connect(ui->tableView->selectionModel(), &QItemSelectionModel::currentChanged, this,
&MainWindow::onCurrentChanged);
onSelectionChanged(QItemSelection(), QItemSelection());
onCurrentChanged(QModelIndex(), QModelIndex());
}
MainWindow::~MainWindow() { delete ui; }
@ -104,6 +107,20 @@ void MainWindow::showStatusMessage(const QString text) {
ui->statusbar->showMessage(text);
}
void MainWindow::onCurrentChanged(const QModelIndex& current, const QModelIndex& previous) {
// Q_UNUSED(current);
Q_UNUSED(previous);
// QItemSelection localSelection = ui->tableView->selectionModel()->selection();
if (current == QModelIndex()) {
// qDebug() << "Nothing selected. Disabling delete action";
m_deleteItemAct->setEnabled(false);
} else {
// qDebug() << "Something selected. Enabling delete action";
m_deleteItemAct->setEnabled(true);
}
}
void MainWindow::onSelectionChanged(const QItemSelection& selected,
const QItemSelection& deselected) {
Q_UNUSED(selected);
@ -162,6 +179,17 @@ void MainWindow::openEditItemDialog() {
m_editItemDialog->show();
}
void MainWindow::deleteCurrentItem() {
showStatusMessage(tr("Invoked 'Edit|Delete Item'"));
// QItemSelection localSelection = ui->tableView->selectionModel()->selection();
const QModelIndex currentIndex = ui->tableView->selectionModel()->currentIndex();
if (currentIndex == QModelIndex()) {
qDebug() << "No current item. Nothing to remove.";
} else {
m_tableModel->removeRows(currentIndex.row(), 1);
}
}
void MainWindow::deleteSelectedtItems() {
showStatusMessage(tr("Invoked 'Edit|Delete Item'"));
QItemSelection localSelection = ui->tableView->selectionModel()->selection();
@ -349,7 +377,8 @@ void MainWindow::createEditActions() {
m_deleteItemAct = make_unique<QAction>(tr("&Delete item(s)"), this);
m_deleteItemAct->setShortcuts(QKeySequence::Delete);
m_deleteItemAct->setStatusTip(tr("Delete currently selected item(s)"));
connect(m_deleteItemAct.get(), &QAction::triggered, this, &MainWindow::deleteSelectedtItems);
// connect(m_deleteItemAct.get(), &QAction::triggered, this, &MainWindow::deleteSelectedtItems);
connect(m_deleteItemAct.get(), &QAction::triggered, this, &MainWindow::deleteCurrentItem);
ui->menu_Edit->addAction(m_deleteItemAct.get());
ui->menu_Edit->addSeparator();
@ -379,6 +408,6 @@ void MainWindow::createGuiDialogs() {
connect(m_newItemDialog.get(), &NewItemDialog::addItems, m_tableModel.get(),
&TableModel::appendItems);
/// edit item dialog
m_editItemDialog = make_unique<EditItemDialog>(this);
m_editItemDialog = make_unique<EditItemDialog>(ui->tableView, this);
m_editItemDialog->createContent();
}

2
mainwindow.h
View File

@ -37,6 +37,7 @@ class MainWindow : public QMainWindow {
private slots:
void showStatusMessage(const QString text);
void onCurrentChanged(const QModelIndex& current, const QModelIndex& previous);
void onSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected);
void onAboutClicked();
@ -47,6 +48,7 @@ class MainWindow : public QMainWindow {
/// slots for menu actions
void openNewItemDialog();
void openEditItemDialog();
void deleteCurrentItem();
void deleteSelectedtItems();
void onCleanStateChanged(bool clean);

94
views/itemdetailmapper.cpp
View File

@ -1,14 +1,30 @@
#include "itemdetailmapper.h"
#include <QAbstractItemModel>
#include <QDataWidgetMapper>
#include <QGridLayout>
#include <QJsonArray>
#include <QJsonObject>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QSpinBox>
#include <QTableView>
ItemDetailMapper::ItemDetailMapper(QWidget* parent)
: QWidget{parent} {
/// model mapping
m_mapper = std::make_unique<QDataWidgetMapper>(this);
m_mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
/// 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();
@ -44,5 +60,83 @@ ItemDetailMapper::ItemDetailMapper(QWidget* parent)
layout->addWidget(m_factorLabel, 4, 0, 1, 1);
layout->addWidget(m_factorBox, 4, 1, 1, 1);
layout->addWidget(m_previousButton, 5, 0, 1, 1);
layout->addWidget(m_nextButton, 5, 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_amountBox, 3);
m_mapper->addMapping(m_factorBox, 4);
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());
}
bool ItemDetailMapper::submit() { return m_mapper->submit(); }
void ItemDetailMapper::revert() { m_mapper->revert(); }
void ItemDetailMapper::onCurrentIndexChanged(const QModelIndex& current,
const QModelIndex& previous) {
if (!isEnabled()) {
setEnabled(true);
}
m_mapper->setCurrentModelIndex(current);
updateButtons(current.row());
}
void ItemDetailMapper::rowsInserted(const QModelIndex& parent, int start, int end) {
updateButtons(m_mapper->currentIndex());
}
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();
}
updateButtons(m_mapper->currentIndex());
}
void ItemDetailMapper::toPrevious() {
int currentRow = m_selectionModel->currentIndex().row();
QModelIndex previousIndex = m_selectionModel->currentIndex().siblingAtRow(currentRow - 1);
if (previousIndex.isValid()) {
m_selectionModel->setCurrentIndex(previousIndex, QItemSelectionModel::ClearAndSelect);
}
}
void ItemDetailMapper::toNext() {
int currentRow = m_selectionModel->currentIndex().row();
QModelIndex nextIndex = m_selectionModel->currentIndex().siblingAtRow(currentRow + 1);
if (nextIndex.isValid()) {
m_selectionModel->setCurrentIndex(nextIndex, QItemSelectionModel::ClearAndSelect);
}
}
void ItemDetailMapper::updateButtons(int row) {
m_previousButton->setEnabled(row > 0);
m_nextButton->setEnabled(row < m_model->rowCount() - 1);
}

30
views/itemdetailmapper.h
View File

@ -1,21 +1,48 @@
#ifndef ITEMDETAILMAPPER_H
#define ITEMDETAILMAPPER_H
#include <QDataWidgetMapper>
#include <QWidget>
class QLabel;
class QLineEdit;
class QDoubleSpinBox;
class QSpinBox;
class QPushButton;
class QAbstractItemModel;
class QItemSelectionModel;
class QTableView;
class ItemDetailMapper : public QWidget {
Q_OBJECT
public:
explicit ItemDetailMapper(QWidget* parent = nullptr);
void setModelMappings(QTableView* tableView);
bool submit();
void revert();
signals:
private slots:
void onCurrentIndexChanged(const QModelIndex& current, const QModelIndex& previous);
void rowsInserted(const QModelIndex& parent, int start, int end);
void rowsRemoved(const QModelIndex& parent, int start, int end);
void toPrevious();
void toNext();
void updateButtons(int row);
private:
/// *** members ***
/// Model stuff
QTableView* m_tableView = nullptr;
QAbstractItemModel* m_model = nullptr;
QItemSelectionModel* m_selectionModel = nullptr;
std::unique_ptr<QDataWidgetMapper> m_mapper;
/// GUI elements
QLabel* m_nameLabel = nullptr;
QLineEdit* m_nameEdit = nullptr;
@ -30,6 +57,9 @@ class ItemDetailMapper : public QWidget {
QLabel* m_factorLabel = nullptr;
QDoubleSpinBox* m_factorBox = nullptr;
QPushButton* m_nextButton;
QPushButton* m_previousButton;
};
#endif // ITEMDETAILMAPPER_H