#include "gtl_gui_chart_markers_view.h"

#include "gtl_gui_chart_markers_item_delegate.h"
#include "gtl_gui_chart_markers.h"

namespace gtl
{
    namespace gui
    {
        chart_markers_view::chart_markers_view(QWidget* parent)
            : QTableView(parent)
        {
            setItemDelegate(new chart_markers_item_delegate(this));

            setCornerButtonEnabled(false);
            setShowGrid(false);

            QFont font("MS Shell Dlg 2", 8);
            setFont(font);

            setSelectionMode(QAbstractItemView::SelectionMode::NoSelection);
            setFocusPolicy(Qt::FocusPolicy::NoFocus);

            verticalHeader()->setDefaultSectionSize(18);
            verticalHeader()->setFont(font);
            verticalHeader()->setSectionResizeMode(QHeaderView::Fixed);
            horizontalHeader()->setVisible(false);
            horizontalHeader()->setMaximumHeight(16);
            horizontalHeader()->setMinimumSectionSize(0);
            horizontalHeader()->setFont(font);

            set_height();
        }

        void chart_markers_view::setModel(QAbstractItemModel *model)
        {
            QTableView::setModel(model);

            connect(model, &QAbstractItemModel::rowsInserted, this, &chart_markers_view::rows_and_columns_count_changed);
            connect(model, &QAbstractItemModel::rowsRemoved, this, &chart_markers_view::rows_and_columns_count_changed);
            connect(model, &QAbstractItemModel::columnsInserted, this, &chart_markers_view::rows_and_columns_count_changed);
            connect(model, &QAbstractItemModel::columnsRemoved, this, &chart_markers_view::rows_and_columns_count_changed);

            connect(static_cast<chart_markers*>(model), &chart_markers::color_changed, this, &chart_markers_view::markers_color_changed);

            markers_color_changed();

        }

        void chart_markers_view::set_height()
        {
            int height = 0;

            if(model() == NULL)
            {

            }
            else if(model()->rowCount() > 1 && model()->columnCount() > 2)
            {
                height = horizontalHeader()->height();

                if (model()->columnCount() == 0)
                {
                    //		height = 0;
                    //		setVisible(false);

                }
                else
                {

                    //	setVisible(true);



                    for (int i = 0; i < model()->rowCount(); i++)
                        height += rowHeight(i)/* + 1*/;
                }

                if (horizontalScrollBar()->isVisible())
                {
                    height += horizontalScrollBar()->height();
                }
            }

            height += 2;




            setMinimumSize(0, height);
            setMaximumSize(1000000, height);

            if(model() == NULL)
                return;

            QFontMetrics metrics(font());

            for (int i = 0; i < model()->columnCount(); i++)
            {
                QString str = model()->data(model()->index(0, i), Qt::DisplayRole).toString();
                QRect rect = metrics.boundingRect(str);

                if (i == 0)
                {
                    setColumnWidth(i, rect.width() + 10);
                    horizontalHeader()->setSectionResizeMode(i, QHeaderView::Fixed);
                }
                else if (i % 2 == 1)
                {
                    if (rowSpan(1, i) != model()->rowCount())
                        setSpan(1, i, model()->rowCount(), 1);

                    setColumnWidth(i, rect.width() + 10);
                    horizontalHeader()->setSectionResizeMode(i, QHeaderView::Fixed);
                }
                else
                {
//                    if (columnWidth(i) < rect.width() + 10)
                        setColumnWidth(i, rect.width() + 10);

                        horizontalHeader()->setSectionResizeMode(i, QHeaderView::ResizeToContents);

                }
            }
        }

        void chart_markers_view::resizeEvent(QResizeEvent *event)
        {
            QTableView::resizeEvent(event);

            set_height();
        }


        void chart_markers_view::rows_and_columns_count_changed(const QModelIndex &/*parent*/, int/* start*/, int/* end*/)
        {
            set_height();
        }

        void chart_markers_view::markers_color_changed()
        {
            setStyleSheet( "QTableView{background-color: " + static_cast<chart_markers*>(model())->bgnd_color().name() + ";}" + "QHeaderView:section{background-color: " + static_cast<chart_markers*>(model())->bgnd_color().name() + "; color: " + static_cast<chart_markers*>(model())->color().name() + "; border-style:none; border-bottom: 1px solid #808080;}");
        }
    }
}