qt5base-lts/examples/widgets/itemviews/editabletreemodel/treeitem.cpp
Jani Heikkinen 2b75c156b6 Updated BSD licensed file headers
Change-Id: I6441ff931dbd33b698d762e6f6784898f3f60fe7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-02-15 07:41:17 +00:00

180 lines
4.3 KiB
C++

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the examples of the Qt Toolkit.
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** the documentation and/or other materials provided with the
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/*
treeitem.cpp
A container for items of data supplied by the simple tree model.
*/
#include "treeitem.h"
#include <QStringList>
//! [0]
TreeItem::TreeItem(const QVector<QVariant> &data, TreeItem *parent)
{
parentItem = parent;
itemData = data;
}
//! [0]
//! [1]
TreeItem::~TreeItem()
{
qDeleteAll(childItems);
}
//! [1]
//! [2]
TreeItem *TreeItem::child(int number)
{
return childItems.value(number);
}
//! [2]
//! [3]
int TreeItem::childCount() const
{
return childItems.count();
}
//! [3]
//! [4]
int TreeItem::childNumber() const
{
if (parentItem)
return parentItem->childItems.indexOf(const_cast<TreeItem*>(this));
return 0;
}
//! [4]
//! [5]
int TreeItem::columnCount() const
{
return itemData.count();
}
//! [5]
//! [6]
QVariant TreeItem::data(int column) const
{
return itemData.value(column);
}
//! [6]
//! [7]
bool TreeItem::insertChildren(int position, int count, int columns)
{
if (position < 0 || position > childItems.size())
return false;
for (int row = 0; row < count; ++row) {
QVector<QVariant> data(columns);
TreeItem *item = new TreeItem(data, this);
childItems.insert(position, item);
}
return true;
}
//! [7]
//! [8]
bool TreeItem::insertColumns(int position, int columns)
{
if (position < 0 || position > itemData.size())
return false;
for (int column = 0; column < columns; ++column)
itemData.insert(position, QVariant());
foreach (TreeItem *child, childItems)
child->insertColumns(position, columns);
return true;
}
//! [8]
//! [9]
TreeItem *TreeItem::parent()
{
return parentItem;
}
//! [9]
//! [10]
bool TreeItem::removeChildren(int position, int count)
{
if (position < 0 || position + count > childItems.size())
return false;
for (int row = 0; row < count; ++row)
delete childItems.takeAt(position);
return true;
}
//! [10]
bool TreeItem::removeColumns(int position, int columns)
{
if (position < 0 || position + columns > itemData.size())
return false;
for (int column = 0; column < columns; ++column)
itemData.remove(position);
foreach (TreeItem *child, childItems)
child->removeColumns(position, columns);
return true;
}
//! [11]
bool TreeItem::setData(int column, const QVariant &value)
{
if (column < 0 || column >= itemData.size())
return false;
itemData[column] = value;
return true;
}
//! [11]