Fitting rows in QTableView, getting rid of extra space - c++

Question

I'm trying to generate a simple table (2 rows and 2 columns) and write it to a pdf file, using Qt 4.8.0.
So far, I generate the pdf but there is extra space at the bottom of the "printed" table:
I got the same problem with the right side of the table but I managed to get rid of it. But in this case I am clueless.
Here's the code I have now (all of this code is located in main.cpp):
Main
#include <QtGui/QApplication>
#include <QtCore/QDebug>
#include <QtCore/QMap>
#include <QtCore/QString>
#include <QtGui/QPrinter>
#include <QtGui/QHeaderView>
#include <QtGui/QPainter>
#include <QtGui/QTableWidget>
#include <QtGui/QTableWidgetItem>
/**/
/* Here are the functions.
/**/
int main(int argc, char *argv[]) {
QApplication a(argc, argv);
QMap<QString,int> values;
values.insert("X",7);
values.insert("Y",13);
bool status = TableWidgetToPdf("FromWidget.pdf",values);
return a.exec();
}
TableWidgetToPdf
bool TableWidgetToPdf(const QString& title, const QMap<QString, int>& values) {
QTableWidget* table = GenerateTable(values);
QPrinter printer;
printer.setOutputFileName(title);
printer.setOutputFormat(QPrinter::PdfFormat);
QPainter painter(&printer);
painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
printer.setPaperSize(QPrinter::A4);
table->render(&painter);
painter.end();
printer.newPage();
delete table;
return true;
};
GenerateTable
QTableWidget* GenerateTable(const QMap<QString,int>& values) {
QTableWidget* table = new QTableWidget;
table->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
table->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
table->setRowCount(2);
table->setColumnCount(2);
table->setEditTriggers(QAbstractItemView::NoEditTriggers);
table->setShowGrid(false);
table->verticalHeader()->hide();
QStringList h_labels;
h_labels << "X" << "Y";
table->setHorizontalHeaderLabels(h_labels);
table->horizontalHeader()->setFont( QFont("Times", 10, QFont::Bold) );
table->horizontalHeader()->setStretchLastSection(true);
QTableWidgetItem* item00 = new QTableWidgetItem( QString::number(values["X"]));
item00->setTextAlignment(Qt::AlignCenter);
table->setItem(0,0, item00 );
QTableWidgetItem* item01 = new QTableWidgetItem( QString::number(values["Y"]) );
item01->setTextAlignment(Qt::AlignCenter);
table->setItem(0,1,item01);
table->setItem(1,0,new QTableWidgetItem("ABCD"));
return table;
};
NOTE:
Putting
table->horizontalHeader()->setResizeMode(QHeaderView::Stretch);
table->verticalHeader()->setResizeMode(QHeaderView::Stretch);
in GenerateTable the space disappears, but the cells are resized and consume too much space than needed for their contents. I would like to avoid that if possible:
EDIT:
OK.
In the end I achieved what I wanted by getting rid of the QTableWidget. I had to create the table using html and feeding it to a QTextEditor. Isn't any way to achieve this with a QTableWidget?

Answer 1

Have you tried the flags for resize content?
Try the following code, I don't have access to Qt right now.
table->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
table->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
Hope that works!

Answer 2

I realise that this is an old post but it seems fairly often read.
I tried the same methods that you tried and none worked. Eventually I used a QTableView and added an extra method called by adding/removing rows.
void
TitleView::verticalResizeTableViewToContents()
{
auto count = m_model->rowCount(QModelIndex());
auto scrollBarHeight = horizontalScrollBar()->height();
auto horizontalHeaderHeight = horizontalHeader()->height();
auto rowTotalHeight = scrollBarHeight + (horizontalHeaderHeight * count);
setMinimumHeight(rowTotalHeight);
setMaximumHeight(rowTotalHeight);
}