##// END OF EJS Templates
GIT_REPOSITORIES » LPP » Users » mperrinel » SCIQLOP-Initialisation
RSS

Fork of HG_REPOSITORIES/LPP/SciQLOP_Repos/SciQLop

Define a data source item
Alexandre Leroux -
r35:d11a38d78b7b
parent child
Show More
Show file before | Show file after | Hide comments
@@ -0,0 +1,52
1 #ifndef SCIQLOP_DATASOURCEITEM_H
2 #define SCIQLOP_DATASOURCEITEM_H
3
4 #include <Common/spimpl.h>
5
6 #include <QVariant>
7 #include <QVector>
8
9 /**
10 * @brief The DataSourceItem class aims to represent a structure element of a data source.
11 * A data source has a tree structure that is made up of a main DataSourceItem object (root)
12 * containing other DataSourceItem objects (children).
13 * For each DataSourceItem can be associated a set of data representing it.
14 */
15 class DataSourceItem {
16 public:
17 explicit DataSourceItem(QVector<QVariant> data = {});
18
19 /**
20 * Adds a child to the item. The item takes ownership of the child.
21 * @param child the child to add
22 */
23 void appendChild(std::unique_ptr<DataSourceItem> child) noexcept;
24
25 /**
26 * Returns the item's child associated to an index
27 * @param childIndex the index to search
28 * @return a pointer to the child if index is valid, nullptr otherwise
29 */
30 DataSourceItem *child(int childIndex) const noexcept;
31
32 int childCount() const noexcept;
33
34 /**
35 * Get the data associated to an index
36 * @param dataIndex the index to search
37 * @return the data found if index is valid, default QVariant otherwise
38 */
39 QVariant data(int dataIndex) const noexcept;
40
41 /**
42 * Get the item's parent
43 * @return a pointer to the parent if it exists, nullptr if the item is a root
44 */
45 DataSourceItem *parentItem() const noexcept;
46
47 private:
48 class DataSourceItemPrivate;
49 spimpl::unique_impl_ptr<DataSourceItemPrivate> impl;
50 };
51
52 #endif // SCIQLOP_DATASOURCEITEMMODEL_H
Show file before | Show file after | Hide comments
@@ -0,0 +1,50
1 #include <DataSource/DataSourceItem.h>
2
3 #include <QVector>
4
5 struct DataSourceItem::DataSourceItemPrivate {
6 explicit DataSourceItemPrivate(QVector<QVariant> data)
7 : m_Parent{nullptr}, m_Children{}, m_Data{std::move(data)}
8 {
9 }
10
11 DataSourceItem *m_Parent;
12 std::vector<std::unique_ptr<DataSourceItem> > m_Children;
13 QVector<QVariant> m_Data;
14 };
15
16 DataSourceItem::DataSourceItem(QVector<QVariant> data)
17 : impl{spimpl::make_unique_impl<DataSourceItemPrivate>(data)}
18 {
19 }
20
21 void DataSourceItem::appendChild(std::unique_ptr<DataSourceItem> child) noexcept
22 {
23 child->impl->m_Parent = this;
24 impl->m_Children.push_back(std::move(child));
25 }
26
27 DataSourceItem *DataSourceItem::child(int childIndex) const noexcept
28 {
29 if (childIndex < 0 || childIndex >= childCount()) {
30 return nullptr;
31 }
32 else {
33 return impl->m_Children.at(childIndex).get();
34 }
35 }
36
37 int DataSourceItem::childCount() const noexcept
38 {
39 return impl->m_Children.size();
40 }
41
42 QVariant DataSourceItem::data(int dataIndex) const noexcept
43 {
44 return impl->m_Data.value(dataIndex);
45 }
46
47 DataSourceItem *DataSourceItem::parentItem() const noexcept
48 {
49 return impl->m_Parent;
50 }
General Comments 0
You need to be logged in to leave comments. Login now