Added model & delegate

bcvaluedelegate.cpp

@@ -0,0 +1,114 @@
+#include <QSlider>
+#include <QLabel>
+#include <QHBoxLayout>
+#include <QWidget>
+#include <QDebug>
+
+#include "bcvaluedelegate.h"
+#include "bcvalue.h"
+
+
+BCValueDelegate::BCValueDelegate(QObject *parent) : QStyledItemDelegate(parent) {}
+
+// --- TEIL 1: DIE NORMALE ANZEIGE ---
+QString BCValueDelegate::displayText(const QVariant &value, const QLocale &locale) const
+{
+  // Wir prüfen, ob im Variant unser Struct steckt
+  if (value.canConvert<BCValue>()) {
+    BCValue bc = value.value<BCValue>();
+
+    // Hier bauen wir den String zusammen, den man sieht,
+    // wenn KEIN Editor offen ist.
+    // Format: "Label: Wert Einheit"
+    return QString("%1: %2 %3").arg(bc.label, bc.value.toString(), "mm1");
+  }
+
+  // Fallback für normale Strings/Zahlen
+  return QStyledItemDelegate::displayText(value, locale);
+}
+
+// --- TEIL 2: DER EDITOR (SLIDER) ---
+QWidget *BCValueDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+  QVariant rawData = index.data(Qt::EditRole);
+  if (!rawData.canConvert<BCValue>())
+    return QStyledItemDelegate::createEditor(parent, option, index);
+
+  BCValue bc = rawData.value<BCValue>();
+
+  // Nur bei Integern den Slider-Editor bauen
+  if (bc.value.typeId() == QMetaType::Int)
+  {
+    QWidget *container = new QWidget(parent);
+    container->setAutoFillBackground(true);
+
+    QHBoxLayout *layout = new QHBoxLayout(container);
+    layout->setContentsMargins(4, 0, 4, 0);
+    layout->setSpacing(10);
+
+    // Linkes Label (Name)
+    QLabel *lblName = new QLabel(bc.label, container);
+    lblName->setFixedWidth(80);
+
+    // Slider
+    QSlider *slider = new QSlider(Qt::Horizontal, container);
+    slider->setRange(0, 100);
+    slider->setObjectName("slider");
+
+    // Rechtes Label (Vorschau Wert + Einheit)
+    QLabel *lblUnit = new QLabel(container);
+    lblUnit->setFixedWidth(60);
+    lblUnit->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+    lblUnit->setObjectName("lblUnit");
+
+    layout->addWidget(lblName);
+    layout->addWidget(slider);
+    layout->addWidget(lblUnit);
+
+    // Live-Update des Labels im Editor (aber noch kein Speichern im Model)
+    connect(slider, &QSlider::valueChanged, this, [=](int val){
+      lblUnit->setText(QString("%1 %2").arg(val).arg("mm2"));
+    });
+
+    return container;
+  }
+
+  return QStyledItemDelegate::createEditor(parent, option, index);
+}
+
+void BCValueDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
+{
+  // Daten vom Model in den Editor laden
+  BCValue bc = index.data(Qt::EditRole).value<BCValue>();
+
+  QSlider *slider = editor->findChild<QSlider*>("slider");
+  QLabel *lblUnit = editor->findChild<QLabel*>("lblUnit");
+
+  if (slider && lblUnit) {
+    bool oldState = slider->blockSignals(true);
+    slider->setValue(bc.value.toInt());
+    slider->blockSignals(oldState);
+
+    lblUnit->setText(QString("%1 %2").arg(bc.value.toInt()).arg( "mm3"));
+  } else {
+    QStyledItemDelegate::setEditorData(editor, index);
+  }
+}
+
+void BCValueDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
+{
+  // Daten vom Editor zurück ins Model speichern (Beim Schließen)
+  QSlider *slider = editor->findChild<QSlider*>("slider");
+
+  if (slider) {
+    int value = slider->value();
+    model->setData(index, value, Qt::EditRole);
+  } else {
+    QStyledItemDelegate::setModelData(editor, model, index);
+  }
+}
+
+void BCValueDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const
+{
+  editor->setGeometry(option.rect);
+}