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SelectionEditorFactory for creating combobox selections for use in QTableView.

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TypeSelectionItemModelFactory to use the TypeSelectionItemModel with above factory.
This commit is contained in:
eelke 2018-12-15 15:18:19 +01:00
parent f8d61b61f4
commit e44f73166f
7 changed files with 138 additions and 0 deletions
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pglablib/SelectionEditorFactory.cpp Normal file
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#include "SelectionEditorFactory.h"
#include "TypeSelectionItemModel.h"
#include "AbstractModelFactory.h"
#include <QComboBox>
SelectionEditorFactory::SelectionEditorFactory(QObject *parent, AbstractModelFactory *model_factory, int key_column, int value_column)
: AbstractEditorFactory(parent)
, m_modelFactory(model_factory)
, m_keyColumn(key_column)
, m_valueColumn(value_column)
{}
QWidget *SelectionEditorFactory::createEditor (QWidget *parent, const QStyleOptionViewItem &,
const QModelIndex &) const
{
QWidget *w = nullptr;
QComboBox *cmbbx = new QComboBox(parent);
cmbbx->setMaxVisibleItems(32);
auto model = m_modelFactory->createModel(cmbbx);
cmbbx->setModel(model);
cmbbx->setModelColumn(m_valueColumn);
w = cmbbx;
return w;
}
void SelectionEditorFactory::setEditorData(QWidget *editor, const QModelIndex &index) const
{
QComboBox *cmbbx = dynamic_cast<QComboBox*>(editor);
if (cmbbx) {
auto data = index.data();
if (data.canConvert<QString>()) {
auto selection_model = cmbbx->model();
QModelIndexList indexes = selection_model->match(
selection_model->index(0, m_keyColumn), Qt::DisplayRole, data, 1, Qt::MatchFlags( Qt::MatchExactly ));
if (!indexes.empty()) {
cmbbx->setCurrentIndex(indexes.at(0).row());
}
else {
cmbbx->setCurrentIndex(-1);
}
}
}
}
void SelectionEditorFactory::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
{
QComboBox *cmbbx = dynamic_cast<QComboBox*>(editor);
if (cmbbx) {
auto data = index.data();
if (data.canConvert<QString>()) {
auto selection_model = cmbbx->model();
QVariant d = selection_model->data(
selection_model->index(cmbbx->currentIndex(), m_keyColumn));
model->setData(index, d);
}
}
}