pricecomparisonchild.cpp

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#include <QLabel>
#include <QHeaderView>
#include <QSplitter>
#include <QUndoStack>
#include <QCloseEvent>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QGroupBox>
#include <QPushButton>
#include <QGraphicsView>

#include "pricecomparisonchild.h"
#include "../Dialogs/documentchooser.h"
#include "../Data/project.h"
#include "../Data/datadefinitions.h"
#include "../Data/settings.h"

ChooseProductButton::ChooseProductButton(int id, QString text, QWidget *parent) : QPushButton(text, parent)
{
    this->id = id;
    connect(this, SIGNAL(clicked()), this, SLOT(clickedWithID()));
}

void ChooseProductButton::setIndex(int gridIndex)
{
    id = gridIndex;
}

void ChooseProductButton::clickedWithID()
{
    emit clickedInclID(id);
}

PriceComparisonChild::PriceComparisonChild(Settings &set) : ChildWindow()
{
    setType(WindowType::PriceComparison);
    settings = &set;

    grid = new QGridLayout();
    setLayout(grid);

    setWindowTitle(tr("Preis Vergleich"));

    // this creates an empty grid with buttons for choosing the products you want to compare
    // it creates a QGraphicsView inside each GridItem
    // as soon as you've choosen a product the QGraphicsView get's replaced with the PieChartView
    // furthermore a QTableView get's added beneath the PieChartView for showing the figures
    createProductComparisonView();
}

void PriceComparisonChild::setDocumentInfoModel(AbstractModel *model)
{
    fileInfo = model;
    setWindowTitle(model->fileName());
}

void PriceComparisonChild::setModelList(DocumentChooserModel *m)
{
    modelList = m;
}

QDomElement PriceComparisonChild::saveDocumentNodes()
{
    return QDomElement();
}

bool PriceComparisonChild::loadDocument(const QDomElement fileName)
{
    return true;
}

void PriceComparisonChild::createProductComparisonView()
{
    // create the grid with QGraphicsViews containing a button in the middle of the view

    uint countHorizontal = 0;
    uint countVertical = 0;

    uint columns = 3;
    uint rows = 2;
    uint totalCount = columns * rows;

    for(uint i = 0; i < totalCount; i++)
    {
        QGroupBox *box = new QGroupBox(this);
        QVBoxLayout *vbox = new QVBoxLayout();

        QLabel *labelCostUnit = new QLabel(box);
        labelCostUnit->setFixedHeight(16);                  //NEEDED! otherwise it will take up half of the space
        labelCostUnit->setAlignment(Qt::AlignHCenter);
        QFont font;
        font.setBold(true);
        font.setPointSize(11);
        labelCostUnit->setFont(font);
        labelCostUnit->hide();

        ChooseProductButton *buttonChooseProduct = new ChooseProductButton(-1, "Produkt auswählen", box);
        connect(buttonChooseProduct, SIGNAL(clickedInclID(int)), this, SLOT(chooseProductDialog(int)));

        PieChartView *piechart = new PieChartView(settings, this);
        QTableView *table = new QTableView();
        piechart->hide();
        table->hide();

        vbox->addWidget(labelCostUnit);
        vbox->addWidget(buttonChooseProduct);
        vbox->addWidget(piechart);
        vbox->addWidget(table);

        box->setLayout(vbox);
        grid->addWidget(box, countVertical, countHorizontal);

        //there MUST be some better way to do get that f****** index!
        buttonChooseProduct->setIndex(grid->indexOf(box));

        countHorizontal++;
        if(countHorizontal % columns == 0)
        {
            // iterating to next row
            countVertical++;
            countHorizontal = 0;
        }
    }
}

void PriceComparisonChild::chooseProductDialog(int id)
{
    DocumentChooser *chooser = new DocumentChooser(WindowType::CostUnit, id, fileInfo->fileName(), QDomElement(), modelList, this);
    chooser->show();
    connect(chooser, SIGNAL(documentSelected(DocumentItem, int, QString, QDomElement)), this, SLOT(documentSelected(DocumentItem, int, QString, QDomElement)));
}

void PriceComparisonChild::documentSelected(DocumentItem callByValueItem, int id, QString name, QDomElement file)
{
    DocumentItem *item = referenceFromItem(callByValueItem);
    if(item != NULL)
    {
        QLayoutItem *layoutItem = grid->itemAt(id);
        if(layoutItem != NULL)
        {
            qDebug()<<"Item is NOT null!";
            QGroupBox *box = (QGroupBox*)layoutItem->widget();
            QVBoxLayout *layout = (QVBoxLayout*)box->layout();
            layout->itemAt(0)->widget()->show();                                                //show label
            layout->itemAt(1)->widget()->show();                                                //display piechart
            layout->itemAt(2)->widget()->show();                                                //display table
            layout->itemAt(3)->widget()->show();                                                //display button

            qDebug()<<"FIXME: check should be added here if conversion is valid";
            CostUnitModel *model = (CostUnitModel*)(item->model());

            qDebug()<<"before label";
            ((QLabel*)(layout->itemAt(0)->widget()))->setText(model->fileName());
            qDebug()<<"before piechart";
            ((PieChartView*)(layout->itemAt(2)->widget()))->setModel(model);
            qDebug()<<"before tableview";
            ((QTableView*)(layout->itemAt(3)->widget()))->setModel(model);
            qDebug()<<"after tableview";
        }
    }
}

DocumentItem* PriceComparisonChild::referenceFromItem(DocumentItem callByValueItem)
{
    //COPY FROM MAINWINDOW!!!!

    AbstractModel *model = callByValueItem.model();
    if(model->fileId() != -1 && model->fileName() != "" && model->type() != -1)
    {
        // because the item is a call by value variable we need to find the correct item in the model now
        return modelList->documentItem(model->fileId(), model->type());
    }
    else
    {
        return NULL;
    }
}

void PriceComparisonChild::recalculateShownProducts()
{

}

/*void PriceComparisonChild::setProductAtIndex(int column, int row)
{
                CostUnitModel *datasource = new CostUnitModel(settings, this);
            datasource->setProduct("Cola" + QString::number(i), "1", "2", "3", "4", "5", "6");
            products.append(datasource);

            labelCostUnit->setText(datasource->product()->productName());

            QTableView *tableView = new QTableView(box);
            tableView->setModel(datasource);
            tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
            tableView->horizontalHeader()->setStretchLastSection(true);
            tableView->verticalHeader()->hide();
            tableView->setEditTriggers(QAbstractItemView::NoEditTriggers);
            tableView->setSelectionMode(QAbstractItemView::NoSelection);

            PieChartView *pieChart = new PieChartView(settings, box);
            pieChart->setModel(datasource);

            QPushButton *buttonSetProduct = new QPushButton(tr("Produkt auswählen"), box);

}*/

void PriceComparisonChild::closeEvent(QCloseEvent *event)
{
    if(maybeSave()!=false)
    {
        event->accept();
    }
    else
    {
        event->ignore();
    }
}

bool PriceComparisonChild::maybeSave()
{
    return true;
}

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