qt/LedOK/gutil/qgui.cpp

#include "qgui.h"
#include <QResizeEvent>

const int AlignRight = Qt::AlignRight | Qt::AlignVCenter;

Table::Table(std::initializer_list<ColAttr> colAttrs, int rows, QWidget *parent) : QTableWidget{rows, (int)colAttrs.size(), parent} {
    int i = 0;
    for(typename std::initializer_list<ColAttr>::const_iterator it = colAttrs.begin(); it != colAttrs.end(); ++it) {
        auto item = horizontalHeaderItem(i);
        if(item==0) setHorizontalHeaderItem(i, item = new QTableWidgetItem());
        item->setText(it->text);
        if(it->width > 0) horizontalHeader()->resizeSection(i, it->width);
        if(it->resizeMode != QHeaderView::Interactive) {
            if(it->resizeMode==QHeaderView::Stretch && it->width>0) {
                item->setData(0x99, it->width > 0 ? it->width : 100);
                noStretch = false;
            } else horizontalHeader()->setSectionResizeMode(i, (QHeaderView::ResizeMode)it->resizeMode);
        }
        mFieldMap.emplace(it->field, i++);
    }
}

void Table::resizeEvent(QResizeEvent *event) {
    QTableWidget::resizeEvent(event);
    if(noStretch || event->size().width() == event->oldSize().width()) return;
    resizeSec();
}

void Table::resizeSec() {
    auto header = horizontalHeader();
    int colCnt = columnCount(), remainWidth = header->width(), stretchWidth = 0, secWidth;
    QTableWidgetItem *item;
    for(int cc=0; cc<colCnt; cc++) if((item = horizontalHeaderItem(cc))) {
        if((secWidth = item->data(0x99).toInt()) > 0) stretchWidth += secWidth;
        else remainWidth -= header->sectionSize(cc);
    }
    if(remainWidth<=0 || stretchWidth==0) return;
    for(int cc=0; cc<colCnt; cc++) if((item = horizontalHeaderItem(cc)) && (secWidth = item->data(0x99).toInt()) > 0) header->resizeSection(cc, secWidth * remainWidth / stretchWidth);
}

void Table::updateGeometries() {
    QTableWidget::updateGeometries();
    emit updGeos();
}