本文整理汇总了C++中QAbstractItemModel::insertColumns方法的典型用法代码示例。如果您正苦于以下问题：C++ QAbstractItemModel::insertColumns方法的具体用法？C++ QAbstractItemModel::insertColumns怎么用？C++ QAbstractItemModel::insertColumns使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QAbstractItemModel的用法示例。
在下文中一共展示了QAbstractItemModel::insertColumns方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: mapToSource
bool Utils::ModelListModel::insertColumns(int column, int count, const QModelIndex& parent)
{
Utils::ModelListModel::SubModelIndex smi = mapToSource(parent);
if (smi.first == m_metaModel && smi.second.parent().isValid())
{
QAbstractItemModel* subModel = m_subModels.value(smi.second.row());
if (subModel)
return subModel->insertColumns(column, count);
}
return smi.first->insertColumns(column, count, smi.second);
}示例2: populateTestArea
/*!
Fills model with some test data at least twenty rows and if possible twenty or more columns.
Return the parent of a row/column that can be tested.
NOTE: If readOnly is true tests will try to remove and add rows and columns.
If you have a tree model returning not the root index will help catch more errors.
*/
QModelIndex ModelsToTest::populateTestArea(QAbstractItemModel *model)
{
if (QStringListModel *stringListModel = qobject_cast<QStringListModel *>(model)) {
QString alphabet = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
stringListModel->setStringList( alphabet.split(",") );
return QModelIndex();
}
if (qobject_cast<QStandardItemModel *>(model)) {
// Basic tree StandardItemModel
QModelIndex parent;
QVariant blue = QVariant(QColor(Qt::blue));
#ifndef Q_OS_WINCE
for (int i = 0; i < 4; ++i) {
#else
for (int i = 0; i < 2; ++i) {
#endif
parent = model->index(0, 0, parent);
model->insertRows(0, 26 + i, parent);
#ifndef Q_OS_WINCE
model->insertColumns(0, 26 + i, parent);
#else
model->insertColumns(0, 4 + i, parent);
#endif
// Fill in some values to make it easier to debug
/*
for (int x = 0; x < 26 + i; ++x) {
QString xval = QString::number(x);
for (int y = 0; y < 26 + i; ++y) {
QString val = xval + QString::number(y) + QString::number(i);
QModelIndex index = model->index(x, y, parent);
model->setData(index, val);
model->setData(index, blue, Qt::TextColorRole);
}
}
*/
}
return model->index(0,0);
}
if (qobject_cast<QSortFilterProxyModel *>(model)) {
QAbstractItemModel *realModel = (qobject_cast<QSortFilterProxyModel *>(model))->sourceModel();
// Basic tree StandardItemModel
QModelIndex parent;
QVariant blue = QVariant(QColor(Qt::blue));
#ifndef Q_OS_WINCE
for (int i = 0; i < 4; ++i) {
#else
for (int i = 0; i < 2; ++i) {
#endif
parent = realModel->index(0, 0, parent);
realModel->insertRows(0, 26+i, parent);
#ifndef Q_OS_WINCE
realModel->insertColumns(0, 26+i, parent);
#else
realModel->insertColumns(0, 4, parent);
#endif
// Fill in some values to make it easier to debug
/*
for (int x = 0; x < 26+i; ++x) {
QString xval = QString::number(x);
for (int y = 0; y < 26 + i; ++y) {
QString val = xval + QString::number(y) + QString::number(i);
QModelIndex index = realModel->index(x, y, parent);
realModel->setData(index, val);
realModel->setData(index, blue, Qt::TextColorRole);
}
}
*/
}
QModelIndex returnIndex = model->index(0,0);
if (!returnIndex.isValid())
qFatal("%s: model index to be returned is invalid", Q_FUNC_INFO);
return returnIndex;
}
if (QDirModel *dirModel = qobject_cast<QDirModel *>(model)) {
if (!QDir::current().mkdir("test"))
qFatal("%s: cannot create directory %s",
Q_FUNC_INFO,
qPrintable(QDir::toNativeSeparators(QDir::currentPath()+"/test")));
for (int i = 0; i < 26; ++i) {
QString subdir = QString("test/foo_%1").arg(i);
if (!QDir::current().mkdir(subdir))
qFatal("%s: cannot create directory %s",
Q_FUNC_INFO,
qPrintable(QDir::toNativeSeparators(QDir::currentPath()+"/"+subdir)));
}
return dirModel->index(QDir::currentPath()+"/test");
}
if (QSqlQueryModel *queryModel = qobject_cast<QSqlQueryModel *>(model)) {
QSqlQuery q;
//.........这里部分代码省略.........