void PrintLayout::printTable()
{
// create and setup a table
QTableView table;
table.setAttribute(Qt::WA_DontShowOnScreen);
table.setSelectionMode(QAbstractItemView::NoSelection);
table.setFocusPolicy(Qt::NoFocus);
table.horizontalHeader()->setVisible(false);
table.horizontalHeader()->setResizeMode(QHeaderView::Fixed);
table.verticalHeader()->setVisible(false);
table.verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
table.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
table.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
// fit table to one page initially
table.resize(scaledPageW, scaledPageH);
// create and fill a table model
TablePrintModel model;
struct dive *dive;
int i, row = 0;
addTablePrintHeadingRow(&model, row); // add one heading row
row++;
for_each_dive(i, dive) {
if (!dive->selected && printOptions->print_selected)
continue;
addTablePrintDataRow(&model, row, dive);
row++;
}
table.setModel(&model); // set model to table
// resize columns to percentages from page width
for (int i = 0; i < model.columns; i++) {
int pw = qCeil((qreal)(tablePrintColumnWidths.at(i) * table.width()) / 100);
table.horizontalHeader()->resizeSection(i, pw);
}
// reset the model at this point
model.callReset();
// a list of vertical offsets where pages begin and some helpers
QList<unsigned int> pageIndexes;
pageIndexes.append(0);
int tableHeight = 0, rowH = 0, accH = 0;
// process all rows
for (int i = 0; i < model.rows; i++) {
rowH = table.rowHeight(i);
accH += rowH;
if (accH > scaledPageH) { // push a new page index and add a heading
pageIndexes.append(pageIndexes.last() + (accH - rowH));
addTablePrintHeadingRow(&model, i);
accH = 0;
i--;
}
tableHeight += rowH;
}
pageIndexes.append(pageIndexes.last() + accH);
// resize the whole widget so that it can be rendered
table.resize(scaledPageW, tableHeight);
// attach a painter and render pages by using pageIndexes
QPainter painter(printer);
painter.setRenderHint(QPainter::Antialiasing);
painter.setRenderHint(QPainter::SmoothPixmapTransform);
painter.scale(scaleX, scaleY);
for (int i = 0; i < pageIndexes.size() - 1; i++) {
if (i > 0)
printer->newPage();
QRegion region(0, pageIndexes.at(i) - 1,
table.width(),
pageIndexes.at(i + 1) - pageIndexes.at(i) + 2);
table.render(&painter, QPoint(0, 0), region);
}
}
void PrintLayout::printTable()
{
struct dive *dive;
int done = 0; // percents done
int i, row = 0, progress, total = estimateTotalDives();
if (!total)
return;
// create and setup a table
QTableView table;
table.setAttribute(Qt::WA_DontShowOnScreen);
table.setSelectionMode(QAbstractItemView::NoSelection);
table.setFocusPolicy(Qt::NoFocus);
table.horizontalHeader()->setVisible(false);
table.verticalHeader()->setVisible(false);
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
table.horizontalHeader()->setResizeMode(QHeaderView::Fixed);
table.verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
#else
table.horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);
table.verticalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
#endif
table.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
table.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
// fit table to one page initially
table.resize(scaledPageW, scaledPageH);
// don't show border
table.setStyleSheet(
"QTableView { border: none }");
// create and fill a table model
TablePrintModel model;
addTablePrintHeadingRow(&model, row); // add one heading row
row++;
progress = 0;
for_each_dive(i, dive) {
if (!dive->selected && printOptions->print_selected)
continue;
addTablePrintDataRow(&model, row, dive);
row++;
progress++;
emit signalProgress((progress * 10) / total);
}
done = 10;
table.setModel(&model); // set model to table
// resize columns to percentages from page width
int accW = 0;
int cols = model.columns;
int tableW = table.width();
for (i = 0; i < model.columns; i++) {
int pw = qCeil((qreal)(tablePrintColumnWidths.at(i) * table.width()) / 100.0);
accW += pw;
if (i == cols - 1 && accW > tableW) /* adjust last column */
pw -= accW - tableW;
table.horizontalHeader()->resizeSection(i, pw);
}
// reset the model at this point
model.callReset();
// a list of vertical offsets where pages begin and some helpers
QList<unsigned int> pageIndexes;
pageIndexes.append(0);
/* the algorithm bellow processes the table rows in multiple passes,
* compensating for loss of space due to moving rows on a new page instead
* of truncating them.
* there is a 'passes' array defining how much percents of the total
* progress each will take. given, the first and last stage of this function
* use 10% each, then the sum of passes[] here should be 80%.
* two should be enough! */
const int passes[] = { 70, 10 };
int tableHeight = 0, lastAccIndex = 0, rowH, accH, headings;
bool isHeading = false;
for (unsigned int pass = 0; pass < sizeof(passes) / sizeof(passes[0]); pass++) {
progress = headings = accH = 0;
total = model.rows - lastAccIndex;
for (i = lastAccIndex; i < model.rows; i++) {
rowH = table.rowHeight(i);
accH += rowH;
if (isHeading) {
headings += rowH;
isHeading = false;
}
if (accH > scaledPageH) {
lastAccIndex = i;
pageIndexes.append(pageIndexes.last() + (accH - rowH));
addTablePrintHeadingRow(&model, i);
isHeading = true;
accH = 0;
i--;
}
tableHeight += table.rowHeight(i);
progress++;
emit signalProgress(done + (progress * passes[pass]) / total);
}
done += passes[pass];
}
done = 90;
pageIndexes.append(pageIndexes.last() + accH + headings);
table.resize(scaledPageW, tableHeight);
// attach a painter and render pages by using pageIndexes
QPainter painter(printer);
painter.setRenderHint(QPainter::Antialiasing);
painter.setRenderHint(QPainter::SmoothPixmapTransform);
painter.scale(scaleX, scaleY);
total = pageIndexes.size() - 1;
progress = 0;
for (i = 0; i < total; i++) {
if (i > 0)
printer->newPage();
QRegion region(0, pageIndexes.at(i) - 1,
table.width(),
pageIndexes.at(i + 1) - pageIndexes.at(i) + 1);
table.render(&painter, QPoint(0, 0), region);
progress++;
emit signalProgress(done + (progress * 10) / total);
}
}
