Displaying a QR code in the EditItemDialog containing the full data of the current item as a string.

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.16)
 
 set(TARGET_APP "GenericQtClient-Widgets")
-project(${TARGET_APP} VERSION 0.1.0 LANGUAGES CXX)
+project(${TARGET_APP} VERSION 0.2.0 LANGUAGES CXX)
 
 set(CMAKE_AUTOUIC ON)
 set(CMAKE_AUTOMOC ON)
@@ -63,6 +63,8 @@ target_link_libraries(${TARGET_APP} PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
 
 target_include_directories(${TARGET_APP} PRIVATE ${CORE_LIB_DIR}/)
 target_link_libraries(${TARGET_APP} PRIVATE GenericCore)
+target_include_directories(${TARGET_APP} PRIVATE ${QR_LIB_DIR}/src)
+target_link_libraries(${TARGET_APP} PRIVATE qrcode)
 
 
 # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.

dialogs/edititemdialog.cpp

@@ -1,13 +1,15 @@
 #include "edititemdialog.h"
 
 #include <QDialogButtonBox>
+#include <QLabel>
 #include <QVBoxLayout>
 
 #include "../views/itemdetailmapper.h"
 
 EditItemDialog::EditItemDialog(QTableView* tableView, QWidget* parent)
     : AbstractDialog(QDialogButtonBox::Close, parent)
-    , m_tableView(tableView) {}
+    , m_tableView(tableView)
+    , m_qrCodeDisplay(new QLabel("QR Code")) {}
 
 void EditItemDialog::createContent() {
   if (m_contentContainer) {
@@ -16,9 +18,17 @@ void EditItemDialog::createContent() {
 
   setWindowTitle(tr("Edit item..."));
 
+  m_contentContainer       = new QWidget(this);
+  QHBoxLayout* innerLayout = new QHBoxLayout(this);
+  m_contentContainer->setLayout(innerLayout);
+
   m_detailMapper = new ItemDetailMapper(this);
   m_detailMapper->setModelMappings(m_tableView);
-  m_contentContainer = m_detailMapper;
+  innerLayout->addWidget(m_detailMapper);
+
+  updateQRCode();
+  connect(m_detailMapper, &ItemDetailMapper::contentChanged, this, &EditItemDialog::updateQRCode);
+  innerLayout->addWidget(m_qrCodeDisplay);
 
   m_outerLayout->insertWidget(0, m_contentContainer);
 }
@@ -32,3 +42,16 @@ void EditItemDialog::reject() {
   m_detailMapper->revert();
   QDialog::reject();
 }
+
+void EditItemDialog::updateQRCode(const QString text) {
+  QImage unscaledImage;
+  if (text.isEmpty()) {
+    unscaledImage = QImage("://no-picture-taking.png");
+  } else {
+    unscaledImage = m_generator.generateQr(text);
+  }
+  QImage image = unscaledImage.scaled(250, 250);
+
+  m_qrCodeDisplay->setPixmap(QPixmap::fromImage(image));
+  m_qrCodeDisplay->setToolTip(text);
+}

dialogs/edititemdialog.h

@@ -1,6 +1,7 @@
 #ifndef EDITITEMDIALOG_H
 #define EDITITEMDIALOG_H
 
+#include "QrCodeGenerator.h"
 #include "abstractdialog.h"
 
 class QDoubleSpinBox;
@@ -23,6 +24,9 @@ class EditItemDialog : public AbstractDialog {
   void accept() override;
   void reject() override;
 
+ private slots:
+  void updateQRCode(const QString text = "");
+
  private:
   QTableView* m_tableView = nullptr;
   ItemDetailMapper* m_detailMapper;
@@ -41,6 +45,9 @@ class EditItemDialog : public AbstractDialog {
 
   QLabel* m_factorLabel       = nullptr;
   QDoubleSpinBox* m_factorBox = nullptr;
+
+  QLabel* m_qrCodeDisplay = nullptr;
+  QrCodeGenerator m_generator;
 };
 
 #endif  // EDITITEMDIALOG_H

mainwindow.cpp

@@ -3,6 +3,7 @@
 
 #include <QCloseEvent>
 #include <QFileDialog>
+#include <QInputDialog>
 #include <QMessageBox>
 #include <QStandardPaths>
 #include <QUndoStack>
@@ -45,10 +46,10 @@ MainWindow::MainWindow(QWidget* parent)
   restoreGeometry(settings.value("geometry").toByteArray());
   restoreState(settings.value("windowState").toByteArray());
 
-  m_tableModel = m_core->getModel();
+  // m_tableModel = m_core->getModel();
   // ui->tableView->setModel(m_tableModel.get());
-  m_sortModel = m_core->getSortFilterModel();
-  ui->tableView->setModel((QAbstractItemModel*)m_sortModel.get());
+  m_proxyModel = m_core->getSortFilterModel();
+  ui->tableView->setModel((QAbstractItemModel*)m_proxyModel.get());
   ui->tableView->setSortingEnabled(true);
 
   createActions();
@@ -194,7 +195,7 @@ void MainWindow::deleteCurrentItem() {
   if (currentIndex == QModelIndex()) {
     qDebug() << "No current item. Nothing to remove.";
   } else {
-    m_sortModel->removeRows(currentIndex.row(), 1);
+    m_proxyModel->removeRows(currentIndex.row(), 1);
   }
 }
 
@@ -212,7 +213,7 @@ void MainWindow::deleteSelectedtItems() {
       const int topRow    = iter->top();
       const int bottomRow = iter->bottom();
       const int nRows     = bottomRow - topRow + 1;
-      m_sortModel->removeRows(topRow, nRows);
+      m_proxyModel->removeRows(topRow, nRows);
     }
   }
 }
@@ -278,6 +279,24 @@ void MainWindow::exportCSV() {
   }
 }
 
+void MainWindow::findItems() {
+  showStatusMessage(tr("Invoked 'Edit|Find items'"));
+
+  bool ok;
+  QString text = QInputDialog::getText(this, tr("Find items"), tr("Enter the text to search for:"),
+                                       QLineEdit::Normal, "", &ok);
+  if (ok && !text.isEmpty()) {
+    const QItemSelection itemsToSelect = m_proxyModel->findItems(text);
+    if (itemsToSelect.empty()) {
+      ui->tableView->setCurrentIndex(QModelIndex());
+      ui->tableView->selectionModel()->select(QModelIndex(), QItemSelectionModel::ClearAndSelect);
+    } else {
+      ui->tableView->setCurrentIndex(itemsToSelect.first().topLeft());
+      ui->tableView->selectionModel()->select(itemsToSelect, QItemSelectionModel::ClearAndSelect);
+    }
+  }
+}
+
 void MainWindow::createActions() {
   // TODO add generic menu actions (file/new, edit/cut, ...)
   createFileActions();
@@ -425,8 +444,7 @@ void MainWindow::createEditActions() {
   m_findItemAct = make_unique<QAction>(tr("&Find item(s)"), this);
   m_findItemAct->setShortcuts(QKeySequence::Find);
   m_findItemAct->setStatusTip(tr("Opens a dialog to find item(s) by containing text"));
-  // connect(m_findItemAct, &QAction::triggered, this, &MainWindow::findItems);
-  m_findItemAct->setEnabled(false);
+  connect(m_findItemAct.get(), &QAction::triggered, this, &MainWindow::findItems);
   ui->menu_Edit->addAction(m_findItemAct.get());
 }
 
@@ -444,7 +462,7 @@ void MainWindow::createGuiDialogs() {
   /// new item dialog
   m_newItemDialog = make_unique<NewItemDialog>(this);
   m_newItemDialog->createContent();
-  connect(m_newItemDialog.get(), &NewItemDialog::addItems, m_sortModel.get(),
+  connect(m_newItemDialog.get(), &NewItemDialog::addItems, m_proxyModel.get(),
           &GeneralSortFilterModel::appendItems);
   /// edit item dialog
   m_editItemDialog = make_unique<EditItemDialog>(ui->tableView, this);

mainwindow.h

@@ -60,13 +60,14 @@ class MainWindow : public QMainWindow {
   void importCSV();
   void exportCSV();
 
+  /// 'Edit' slots
+  void findItems();
+
  private:
   Ui::MainWindow* ui;
 
-  // GenericCore* m_core;
   unique_ptr<GenericCore> m_core;
-  shared_ptr<TableModel> m_tableModel;
-  shared_ptr<GeneralSortFilterModel> m_sortModel;
+  shared_ptr<GeneralSortFilterModel> m_proxyModel;
   QUndoStack* m_modelUndoStack;
   unique_ptr<QUndoView> m_modelUndoView;
 

views/itemdetailmapper.cpp

@@ -10,6 +10,7 @@
 #include <QPushButton>
 #include <QSpinBox>
 #include <QTableView>
+#include "model/metadata.h"
 
 ItemDetailMapper::ItemDetailMapper(QWidget* parent)
     : QWidget{parent} {
@@ -101,12 +102,13 @@ bool ItemDetailMapper::submit() { return m_mapper->submit(); }
 void ItemDetailMapper::revert() { m_mapper->revert(); }
 
 void ItemDetailMapper::onCurrentIndexChanged(const QModelIndex& current,
-                                             const QModelIndex& previous) {
+                                             const QModelIndex& /*previous*/) {
   if (!isEnabled()) {
     setEnabled(true);
   }
   m_mapper->setCurrentModelIndex(current);
   updateButtons(current.row());
+  emitContentChanged(current);
 }
 
 void ItemDetailMapper::rowsInserted(const QModelIndex& parent, int start, int end) {
@@ -147,3 +149,12 @@ void ItemDetailMapper::updateButtons(int row) {
   m_previousButton->setEnabled(row > 0);
   m_nextButton->setEnabled(row < m_model->rowCount() - 1);
 }
+
+void ItemDetailMapper::emitContentChanged(const QModelIndex& currentIndex) {
+  // BUG QR-Code isn't updated after changes through the ItemDetailMapper #18
+  QString toStringText = "";
+  if (currentIndex.isValid()) {
+    toStringText = currentIndex.data(ToStringRole).toString();
+  }
+  emit contentChanged(toStringText);
+}

views/itemdetailmapper.h

@@ -24,6 +24,7 @@ class ItemDetailMapper : public QWidget {
   void revert();
 
  signals:
+  void contentChanged(const QString text);
 
  private slots:
   void onCurrentIndexChanged(const QModelIndex& current, const QModelIndex& previous);
@@ -32,6 +33,7 @@ class ItemDetailMapper : public QWidget {
   void toPrevious();
   void toNext();
   void updateButtons(int row);
+  void emitContentChanged(const QModelIndex& currentIndex);
 
  private:
   /// *** members ***