different qundocommands changing the qUndoStack order

[Embitel_qt]

im having two different QUndoCommands
JobEntryCommand: which will be pushed to the QUndoStack on creating an item in the graphicsView. so its redo will create the item and redo will remove it from the graphicsview.

JobEntryCommand::JobEntryCommand(JobFlowItem *item, JobContainerWidget *container, QUndoCommand *parent)
: QUndoCommand(parent),m_pContainer(container)
{
m_JbItem = NULL;
m_jobId = -1;

if(item)
{
    m_JbItem = item;
    m_structdata.JobName = m_JbItem->getParentJob()->GetJobName();

    m_structdata.level = m_JbItem->getItemLevel();
    m_structdata.ParentJobPath = m_JbItem->GetPath();
    m_structdata.ParentLevel = m_JbItem->getItemLevel()-1;
    m_structdata.ParentName = "";
    m_structdata.layoutIndex = m_pContainer->getItemIndex(m_JbItem) -1; //parent index
    m_structdata.JobId = m_JbItem->GetJobId();
}

}

void JobEntryCommand::undo()
{

if(m_JbItem)
{

    if(!m_pContainer->isItemPresentInContainer(m_JbItem))
    {

        m_JbItem = m_pContainer->getJobFromId(m_structdata.JobId);


    }


    m_structdata.JobName = m_JbItem->getParentJob()->GetJobName();

    m_structdata.level = m_JbItem->getItemLevel();
    m_structdata.ParentJobPath = m_JbItem->GetPath();
    m_structdata.ParentLevel = m_JbItem->getItemLevel()-1;
    m_structdata.ParentName = "";
    m_structdata.layoutIndex = m_pContainer->getItemIndex(m_JbItem) -1; //parent index
    m_structdata.JobId = m_JbItem->GetJobId();

    m_childList.clear();
    QList<JobFlowItem *> listItem = m_JbItem->getChildJobs();

    foreach (JobFlowItem *item, listItem) {
        m_childList << item->GetJobId();

    }

    if(!m_JbItem->isMacroGroup())
    {

        m_pContainer->removeJob(m_JbItem);
    }
    m_JbItem = NULL;
}

}

void JobEntryCommand::redo()
{

QString jobPath = m_structdata.JobPath;
QString jobName = m_structdata.JobName;
int level = m_structdata.level;
int layoutIndex = m_structdata.layoutIndex; //it will return  the parent index only for undo child
QString name = m_structdata.ParentName;
int jobId = m_structdata.JobId;




if(level == 0)
    m_JbItem = m_pContainer->addJobToContainer(jobName,layoutIndex + 1,false,false,jobId,true);
else
    m_JbItem = m_pContainer->createChildren(m_structdata.ParentJobPath,layoutIndex, m_structdata.ParentLevel,jobName,false,jobId,false,true);

updateChildrens();

}

DeleteJobCommand : will be pushed when any item is deleted from the graphicsView. so its redo will remove the created item and undo will recreate the item.

DeleteJobCommand::DeleteJobCommand( JobFlowItem *item, JobContainerWidget *container, int parentLevel, QUndoCommand *parent)
: QUndoCommand(parent),m_ParentLevel(parentLevel)
{

m_pJobFlowItem = item;
m_pContainer = container;
m_key =0;



m_structdata.JobName = m_pJobFlowItem->getParentJob()->GetJobName();

m_structdata.level = m_pJobFlowItem->getItemLevel();
m_structdata.ParentJobPath = m_pJobFlowItem->GetPath();
m_structdata.ParentLevel = m_pJobFlowItem->getItemLevel()-1;
m_structdata.ParentName = "";
m_structdata.layoutIndex = m_pContainer->getItemIndex(m_pJobFlowItem) -1; //parent index
m_structdata.JobId = m_pJobFlowItem->GetJobId();

// m_childItemData.clear();

m_macroGroup = m_pJobFlowItem->isMacroGroup();


if(!m_macroGroup)
{
    populateChildDetails(m_pJobFlowItem);

}else
{
    m_key = m_pContainer->getMacroGroupFromItem(m_pJobFlowItem);
}

}

DeleteJobCommand::~DeleteJobCommand()
{

}

void DeleteJobCommand::undo()
{

try
{
    QString jobPath = m_structdata.JobPath;
    QString jobName = m_structdata.JobName;
    int level = m_structdata.level;
    int layoutIndex = m_structdata.layoutIndex; //it will return  the parent index only for undo child
    m_currentName = m_structdata.ParentName;
    int jobId = m_structdata.JobId;


    if(level == 0)
    {
        if(!m_macroGroup)
        {
            m_pJobFlowItem = m_pContainer->addJobToContainer(jobName,layoutIndex + 1,false,false,jobId,true);

        }else
        {
            m_pJobFlowItem = m_pContainer->createEntryInMacroTemplate(jobName, m_key,layoutIndex + 1);
            m_macroGroup = m_pJobFlowItem->isMacroGroup();

        }



    }
    else
    {



        // QModelIndex parentModal = m_pContainer->GetModelIndex(m_structdata.ParentJobPath);

        m_pJobFlowItem = m_pContainer->createChildren(m_structdata.ParentJobPath,layoutIndex, m_structdata.ParentLevel,jobName,false,jobId,false,true);
        m_currentName = m_pJobFlowItem->getParentJob()->GetJobName();

    }


    if(!m_macroGroup)
    {
        //Update the childrens after creation
        updateChildrens();

    }
    if(m_pJobFlowItem)
    {

// qDebug()<<"On copy of the jobs";
// m_pContainer->copyJobFiles(m_pJobFlowItem);
}
}
catch(...)
{
qDebug("Crashed");
}

}

void DeleteJobCommand::redo()
{

try
{
    if(m_pJobFlowItem)
    {
        if(!m_pJobFlowItem->isMacroGroup())
        {


            if(!m_pContainer->isItemPresentInContainer(m_pJobFlowItem))
            {

                m_pJobFlowItem = m_pContainer->getJobFromId(m_structdata.JobId);


            }

            m_structdata.JobName = m_pJobFlowItem->getParentJob()->GetJobName();

            m_structdata.level = m_pJobFlowItem->getItemLevel();
            m_structdata.ParentJobPath = m_pJobFlowItem->GetPath();
            m_structdata.ParentLevel = m_pJobFlowItem->getItemLevel()-1;
            m_structdata.ParentName = "";
            m_structdata.layoutIndex = m_pContainer->getItemIndex(m_pJobFlowItem) -1; //parent index
            m_structdata.JobId = m_pJobFlowItem->GetJobId();

            populateChildDetails(m_pJobFlowItem);
            m_pContainer->removeJob(m_pJobFlowItem);
        }else
            m_pContainer->removeMacroEntry(m_key,m_pJobFlowItem);
        m_pJobFlowItem = NULL;
    }
}
catch(...)
{
    qDebug("Crashed");
}

}

so when i start adding the item, the UndoStack is pushing the created item in the order what it created using JobEntryCommand. so redo on UndoStack work in the same order like

On Create: Job1->Job2->Job3->Job4
On Undo: Job4->Job3->Job2->Job1

but when i deleted any item ex: Job4 the DeleteJobCommand is been pushed to the QUndoStack which in turn change the order of the stack the order will be

** On delete Job1->Job2->Job3 (Job4deleted)

On redo: Job4->Job1->Job3->Job2**
It is shuffling the items inside the stack in an unpredictable possibilities. it happens only if i add a DeleteJobCommand on a stack having JobEntryCommand.

[SGaist]

Hi and welcome to devnet,

Are you sure that it happens on the stack and not the structure you use to store the jobs ?