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URL https://opencores.org/ocsvn/ezidebug/ezidebug/trunk

Subversion Repositories ezidebug

[/] [ezidebug/] [trunk/] [EziDebug_src/] [ezidebugtreemodel.cpp] - Blame information for rev 2

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Line No. Rev Author Line
1 2 EziDebug 
#include <QString>
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#include <QList>
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#include <QDebug>
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#include <QFileIconProvider>
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#include "ezidebuginstancetreeitem.h"
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#include "ezidebugtreemodel.h"
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EziDebugTreeModel::EziDebugTreeModel(EziDebugInstanceTreeItem* item, QObject *parent)\
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    :QAbstractItemModel(parent)
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{
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    m_pinstanceTopItem = item ;
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    m_pheadItem = new EziDebugInstanceTreeItem("module","instance");
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    m_pheadItem->setItemParent(NULL);
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    m_pheadItem->appendChild(m_pinstanceTopItem);
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    m_pinstanceTopItem->setItemParent(m_pheadItem);
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}
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EziDebugTreeModel::~EziDebugTreeModel()
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{
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    if(m_pheadItem)
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        delete m_pheadItem ;
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    m_pheadItem = NULL ;
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}
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QVariant EziDebugTreeModel::data(const QModelIndex &index, int role) const
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{
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    QIcon iexistChainIcon(tr(":/images/yeschain.png"));
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    QIcon inoChainIcon(tr(":/images/nochain.png"));
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    EziDebugInstanceTreeItem* pparentItem = static_cast<EziDebugInstanceTreeItem*>(index.internalPointer());
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    // index 无效 则返回 QVariant()
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    if (!index.isValid())
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        return QVariant();
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    //
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    if (role == Qt::DisplayRole)
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    {
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        return (pparentItem->getNameData());
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    }
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    if (role == Qt::DecorationRole)
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    {
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        if (index.column() == 0)
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        {
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            if(pparentItem->getScanChainInfo())
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                return iexistChainIcon ;
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            else
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                return inoChainIcon ;
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        }
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            //return iconProvider.icon(QFileIconProvider::Folder);
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       // return iconProvider.icon(QFileIconProvider::File);
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    }
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    return QVariant();
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}
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Qt::ItemFlags EziDebugTreeModel::flags(const QModelIndex &index) const
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{
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    if (!index.isValid())
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        return 0;
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    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
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}
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QVariant EziDebugTreeModel::headerData(int section, Qt::Orientation orientation, \
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                    int role) const
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{
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    QString iheadData = "Node Tree" ;
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    if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
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        return iheadData ;
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    return QVariant();
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}
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// 获得 parent 的 row 行 column 列 的 modelIndex
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QModelIndex EziDebugTreeModel::index(int row, int column, const QModelIndex &parent) const
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{
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    //如果行列在允许范围之内
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    if(!hasIndex(row, column, parent))
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    {
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      return QModelIndex();
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    }
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    EziDebugInstanceTreeItem * pparentItem;
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    if (!parent.isValid())
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        //return QModelIndex();
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        pparentItem = m_pheadItem ;
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    else
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        pparentItem = static_cast<EziDebugInstanceTreeItem*>(parent.internalPointer());
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    EziDebugInstanceTreeItem *pchildItem = pparentItem->child(row);
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    // qDebug() << pchildItem << "first" << column ;
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    //qDebug() << pchildItem << row << column << pparentItem;
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    //qDebug() << QObject::tr("创建index") << QObject::tr("行数") << row;
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    //qDebug() << "index" << pchildItem->getModuleName() << pchildItem->getInstanceName()  ;
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    if (pchildItem)
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        return createIndex(row, column, pchildItem);
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    else
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        return QModelIndex();
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}
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// 根据 child 的 modelIndex 获取  parent 的 modelIndex
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QModelIndex EziDebugTreeModel::parent(const QModelIndex &child) const
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{
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    //qDebug() << "parent" << __LINE__  ;
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    if(child.isValid())
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    {
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        EziDebugInstanceTreeItem *pchildItem = static_cast<EziDebugInstanceTreeItem*>(child.internalPointer());
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        EziDebugInstanceTreeItem *pparentItem = pchildItem->parent();
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        // qDebug() << pchildItem << "result" << child.row() << child.column();
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        if (pparentItem == m_pheadItem)
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        {
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            return QModelIndex();
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        }
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        else
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        {
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            //  return createIndex(0, 0, pparentItem);
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            //qDebug() << "parent" <<  pparentItem->row() ;
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            return createIndex(pparentItem->row(), 0, pparentItem);
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        }
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    }
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    return QModelIndex();
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}
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// 父节点下面有多少行
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int EziDebugTreeModel::rowCount(const QModelIndex &parent) const
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{
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    //qDebug() << "rowCount" << __LINE__  ;
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    EziDebugInstanceTreeItem *pparentItem;
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    if (parent.column() > 1)
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        return 0 ;
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    if (!parent.isValid())
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        pparentItem = m_pheadItem ;
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    else
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        pparentItem = static_cast<EziDebugInstanceTreeItem*>(parent.internalPointer());
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    //qDebug() << QObject::tr("获取节点下面多少行") << pparentItem->getModuleName() << pparentItem->childCount() ;
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    return pparentItem->childCount();
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}
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int EziDebugTreeModel::columnCount(const QModelIndex &parent) const
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{
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    if (parent.isValid())
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        return 1 ;
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    else
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        return 1 ;
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}
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EziDebugInstanceTreeItem* EziDebugTreeModel::getInstanceTreeRootItem(void)
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{
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    return m_pinstanceTopItem ;
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}
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void  EziDebugTreeModel::setInstanceTreeRootItem(EziDebugInstanceTreeItem* item)
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{
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    m_pheadItem->removeChild(m_pinstanceTopItem);
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    m_pinstanceTopItem = item ;
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    m_pheadItem->appendChild(m_pinstanceTopItem);
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    m_pinstanceTopItem->setItemParent(m_pheadItem);
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    return ;
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}
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