QTableView printing

**derrickbj** · 26th September 2006, 17:09

Greetings!

I'm trying to print the contents of a QTableView to the printer (this is my first QT program sending anything to the printer). I didn't know if there was a way as easy as QTextEdit->document()->print(&printer). The closeest I could find was implementing something similar to what I saw in Qt's Pixelator example, but all this seems to do for me is spit out an empty sheet of paper:

Note: 'model' is previously defined as QAbstractItemModel *model

Qt Code:

Switch view

QPrinter printer(QPrinter::HighResolution);
 
        QPrintDialog *dlg = new QPrintDialog(&printer, this);
        dlg->setWindowTitle(tr("Print Table"));
 
        if (dlg->exec() != QDialog::Accepted)
            return;
 
        QPainter painter;
        painter.begin(&printer);
 
        int rows = model->rowCount(QModelIndex());
        int columns = model->columnCount(QModelIndex());
 
        double xscale = printer.pageRect().width();
        double yscale = printer.pageRect().height();
        double scale = qMin(xscale, yscale);
 
        painter.translate(printer.paperRect().x() + printer.pageRect().width()/2,
                          printer.paperRect().y() + printer.pageRect().height()/2);
        painter.scale(scale, scale);
        QModelIndex parent = QModelIndex();
        painter.save();
        QStyleOptionViewItem option;
 
        const int ItemSize = 256;
        float x = ItemSize /2;
         for (int printRow = 0; printRow < rows; ++printRow) {
            float y = ItemSize /2;
            for (int column = 0; column < columns; ++column) {
               option.rect = QRect(int(x), int(y), ItemSize, ItemSize);
               myTableView->itemDelegate()->paint(&painter, option, model->index(printRow, column, parent));
                x = x + 256;
            }
            y = y + 256;
        }
        painter.restore();
        painter.end();

QPrinter printer(QPrinter::HighResolution);

        QPrintDialog *dlg = new QPrintDialog(&printer, this);
        dlg->setWindowTitle(tr("Print Table"));

        if (dlg->exec() != QDialog::Accepted)
            return;

        QPainter painter;
        painter.begin(&printer);

        int rows = model->rowCount(QModelIndex());
        int columns = model->columnCount(QModelIndex());
   
        double xscale = printer.pageRect().width();
        double yscale = printer.pageRect().height();
        double scale = qMin(xscale, yscale);
       
        painter.translate(printer.paperRect().x() + printer.pageRect().width()/2,
                          printer.paperRect().y() + printer.pageRect().height()/2);
        painter.scale(scale, scale);
        QModelIndex parent = QModelIndex();
        painter.save();
        QStyleOptionViewItem option;
       
        const int ItemSize = 256;
        float x = ItemSize /2;
         for (int printRow = 0; printRow < rows; ++printRow) {
            float y = ItemSize /2;
            for (int column = 0; column < columns; ++column) {
               option.rect = QRect(int(x), int(y), ItemSize, ItemSize);
               myTableView->itemDelegate()->paint(&painter, option, model->index(printRow, column, parent));
                x = x + 256;
            }
            y = y + 256;
        }
        painter.restore();
        painter.end();

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Any ideas would be greatly appreciated. The only thing I can think of is creating a QTextDocument() and feeding it the QTableView in HTML format and then printing that.

Thanks,
--D

**jpn** · 26th September 2006, 17:28

At least you'll need a proper QStyleOptionViewItem for the delegate to function properly.
Try taking advantage of QAbstractItemView::viewOptions().

PS. use [ code ] -tags to make code blocks more readable.

**derrickbj** · 26th September 2006, 18:29

Thanks for the reply and the tip!! I guess I'm a little confused, though. When I try to do QStyleOptionViewItem option = QAbstractItemView::viewOptions(), compiler tells me I need to state an object. So when I do QStyleOptionViewItem option = myTableView->viewOptions, compiler states I can't b/c viewOptions is protected. What am I missing??

Thanks,
--D

**jpn** · 26th September 2006, 19:25

Yes, it's a non-static and a protected method. So for this kind of approach to work you would have to move some parts of the printing code to a QTableView subclass.

**derrickbj** · 26th September 2006, 20:27

Do you have any examples to go on? I guess I'm unclear of how to get my existing QTableView's contents into a separate QTableView subclass - or are you saying I should subclass my QTableView alltogether?

Thanks!

**derrickbj** · 29th September 2006, 18:56

Ok, I finally opened my eyes and saw how to get the TableView contents from the view to my subclass (again, model predefined as QAbstractItemModel *model, and mainTableView->setModel(model) happens during MainWindow construction) but I'm back to square 1 - All that prints is a blank page. I know setting the PrintTableView's model to 'model' passes the contents of the mainTableView to tempTableView b/c I can display the contents of the indexes through qDebug() in PrintTableView:

rintTable(). Is there something more I need to do to viewOptions()? or is there something else I'm missing?

Thanks!!

Qt Code:

Switch view

void MainWindow::Print()
{
	QPrinter printer(QPrinter::HighResolution);
        QPrintDialog *dlg = new QPrintDialog(&printer, this);
        dlg->setWindowTitle(tr("Print ACLs"));
 
        if (dlg->exec() != QDialog::Accepted)
            return;
 
	PrintTableView *tempTableView = new PrintTableView();
	tempTableView->setModel(model);
	tempTableView->printTable(printer); 
}
 
PrintTableView::PrintTableView(QWidget *parent) : QTableView (parent)
{
 
}
 
void PrintTableView::printTable(QPrinter &printer)
{
	QString str;
        QPainter painter;
        painter.begin(&printer);
	const int ItemSize = 256;
        int rows = model()->rowCount(QModelIndex());
        int columns = model()->columnCount(QModelIndex());
	int sourceWidth = (columns+1) * ItemSize;
        int sourceHeight = (rows+1) * ItemSize;
	painter.save();
 
	double xscale = printer.pageRect().width();
        double yscale = printer.pageRect().height();
        double scale = qMin(xscale, yscale);
 
	painter.translate(printer.paperRect().x() + printer.pageRect().width()/2,
                         printer.paperRect().y() + printer.pageRect().height()/2);
	painter.scale(scale, scale);
	painter.translate(-sourceWidth/2, -sourceHeight/2);
 
	QStyleOptionViewItem option = viewOptions();
 
	float x = ItemSize /2;
		for (int printRow = 0; printRow < rows; ++printRow) {
			float y = ItemSize /2;
            for (int column = 0; column < columns; ++column) {
               option.rect = QRect(int(x), int(y), ItemSize, ItemSize);
			   itemDelegate()->paint(&painter, option, model()->index(printRow, column, QModelIndex()));
               x = x + 256;
            }
            y = y + 256;
        }
	painter.restore();
	painter.end();
}
 
QStyleOptionViewItem PrintTableView::viewOptions() const
{
	QStyleOptionViewItem option = QAbstractItemView->viewOptions();
	return option;
}

void MainWindow::Print()
{
	QPrinter printer(QPrinter::HighResolution);
        QPrintDialog *dlg = new QPrintDialog(&printer, this);
        dlg->setWindowTitle(tr("Print ACLs"));

        if (dlg->exec() != QDialog::Accepted)
            return;

	PrintTableView *tempTableView = new PrintTableView();
	tempTableView->setModel(model);
	tempTableView->printTable(printer); 
}

PrintTableView::PrintTableView(QWidget *parent) : QTableView (parent)
{
	
}

void PrintTableView::printTable(QPrinter &printer)
{
	QString str;
        QPainter painter;
        painter.begin(&printer);
	const int ItemSize = 256;
        int rows = model()->rowCount(QModelIndex());
        int columns = model()->columnCount(QModelIndex());
	int sourceWidth = (columns+1) * ItemSize;
        int sourceHeight = (rows+1) * ItemSize;
	painter.save();
		
	double xscale = printer.pageRect().width();
        double yscale = printer.pageRect().height();
        double scale = qMin(xscale, yscale);
		
	painter.translate(printer.paperRect().x() + printer.pageRect().width()/2,
                         printer.paperRect().y() + printer.pageRect().height()/2);
	painter.scale(scale, scale);
	painter.translate(-sourceWidth/2, -sourceHeight/2);
		
	QStyleOptionViewItem option = viewOptions();
	
	float x = ItemSize /2;
		for (int printRow = 0; printRow < rows; ++printRow) {
			float y = ItemSize /2;
            for (int column = 0; column < columns; ++column) {
               option.rect = QRect(int(x), int(y), ItemSize, ItemSize);
			   itemDelegate()->paint(&painter, option, model()->index(printRow, column, QModelIndex()));
               x = x + 256;
            }
            y = y + 256;
        }
	painter.restore();
	painter.end();
}
					
QStyleOptionViewItem PrintTableView::viewOptions() const
{
	QStyleOptionViewItem option = QAbstractItemView->viewOptions();
	return option;
}

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**jpn** · 29th September 2006, 19:34

The painter's scale factors don't look proper. They should be pretty close to 1.0..

Qt Code:

Switch view

double xscale = printer.pageRect().width();
double yscale = printer.pageRect().height();
double scale = qMin(xscale, yscale);
...
painter.scale(scale, scale); // causes painter to scale it's result width/height times bigger

double xscale = printer.pageRect().width();
double yscale = printer.pageRect().height();
double scale = qMin(xscale, yscale);
...
painter.scale(scale, scale); // causes painter to scale it's result width/height times bigger

To copy to clipboard, switch view to plain text mode

I guess it should be something more like:

Qt Code:

Switch view

double xscale = printer.pageRect().width() / width();
double yscale = printer.pageRect().height() / height();
...
painter.scale(xscale, yscale);

double xscale = printer.pageRect().width() / width();
double yscale = printer.pageRect().height() / height();
...
painter.scale(xscale, yscale);

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**derrickbj** · 29th September 2006, 19:56

J-P,

Thanks for the reply. I implemented your suggestion, and I'm still getting a blank page.

**jpn** · 29th September 2006, 21:02

Qt Code:

Switch view

void TableView::print(QPainter* painter, const QRect& area)
{
	const int rows = model()->rowCount();
	const int cols = model()->columnCount();
 
	// calculate the total width/height table would need without scaling
	double totalWidth = 0.0;
	for (int c = 0; c < cols; ++c)
	{
		totalWidth += columnWidth(c);
	}
	double totalHeight = 0.0;
	for (int r = 0; r < rows; ++r)
	{
		totalHeight += rowHeight(r);
	}
 
	// calculate proper scale factors
	const double scaleX = area.width() / totalWidth;
	const double scaleY = area.height() / totalHeight;
	painter->scale(scaleX, scaleY);
 
	// paint cells
	for (int r = 0; r < rows; ++r)
	{
		for (int c = 0; c < cols; ++c)
		{
			QModelIndex idx = model()->index(r, c);
			QStyleOptionViewItem option = viewOptions();
			option.rect = visualRect(idx);
			itemDelegate()->paint(painter, option, idx);
		}
	}
}
 
// printer usage
QPainter painter(&printer);
tableView->print(&painter, printer.pageRect());
 
// test on pixmap
QPixmap pixmap(320, 240);
QPainter painter(&pixmap);
tableView->print(&painter, pixmap.rect());
pixmap.save("table.png", "PNG");

void TableView::print(QPainter* painter, const QRect& area)
{
	const int rows = model()->rowCount();
	const int cols = model()->columnCount();

	// calculate the total width/height table would need without scaling
	double totalWidth = 0.0;
	for (int c = 0; c < cols; ++c)
	{
		totalWidth += columnWidth(c);
	}
	double totalHeight = 0.0;
	for (int r = 0; r < rows; ++r)
	{
		totalHeight += rowHeight(r);
	}

	// calculate proper scale factors
	const double scaleX = area.width() / totalWidth;
	const double scaleY = area.height() / totalHeight;
	painter->scale(scaleX, scaleY);

	// paint cells
	for (int r = 0; r < rows; ++r)
	{
		for (int c = 0; c < cols; ++c)
		{
			QModelIndex idx = model()->index(r, c);
			QStyleOptionViewItem option = viewOptions();
			option.rect = visualRect(idx);
			itemDelegate()->paint(painter, option, idx);
		}
	}
}

// printer usage
QPainter painter(&printer);
tableView->print(&painter, printer.pageRect());

// test on pixmap
QPixmap pixmap(320, 240);
QPainter painter(&pixmap);
tableView->print(&painter, pixmap.rect());
pixmap.save("table.png", "PNG");

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Edit: I forgot to add painter translating but that should be trivial to add once you get the idea..

**jpn** · 29th September 2006, 21:43

Yet another (maybe even better?) option is to use QPainter's powerful redirecting mechanism. This approach doesn't even require subclassing of QTableView.

Qt Code:

Switch view

QPrinter printer(QPrinter::HighResolution);
QPrintDialog dlg(&printer, this);
if (dlg.exec() == QDialog::Accepted)
{
	// calculate the total width/height table would need without scaling
	const int rows = table->model()->rowCount();
	const int cols = table->model()->columnCount();
	double totalWidth = 0.0;
	for (int c = 0; c < cols; ++c)
	{
		totalWidth += table->columnWidth(c);
	}
	double totalHeight = 0.0;
	for (int r = 0; r < rows; ++r)
	{
		totalHeight += table->rowHeight(r);
	}
 
	// redirect table's painting on a pixmap
	QPixmap pixmap(totalWidth, totalHeight);
	QPainter::setRedirected(table->viewport(), &pixmap);
	QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
	QApplication::sendEvent(table->viewport(), &event);
	QPainter::restoreRedirected(table->viewport());
 
	// print scaled pixmap
	QPainter painter(&printer);
	painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
}

QPrinter printer(QPrinter::HighResolution);
QPrintDialog dlg(&printer, this);
if (dlg.exec() == QDialog::Accepted)
{
	// calculate the total width/height table would need without scaling
	const int rows = table->model()->rowCount();
	const int cols = table->model()->columnCount();
	double totalWidth = 0.0;
	for (int c = 0; c < cols; ++c)
	{
		totalWidth += table->columnWidth(c);
	}
	double totalHeight = 0.0;
	for (int r = 0; r < rows; ++r)
	{
		totalHeight += table->rowHeight(r);
	}

	// redirect table's painting on a pixmap
	QPixmap pixmap(totalWidth, totalHeight);
	QPainter::setRedirected(table->viewport(), &pixmap);
	QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
	QApplication::sendEvent(table->viewport(), &event);
	QPainter::restoreRedirected(table->viewport());

	// print scaled pixmap
	QPainter painter(&printer);
	painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
}

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**derrickbj** · 2nd October 2006, 03:54

J-P,

This is AWESOME!!! Thank you so much! both of these work well. The first suggestion works nicely and scales the text well. The 2nd option prints only to the printer (i.e., won't print to Adobe PDF's printer - for instance, i get a "Critical: QPixmap::toWinHBITMAP(), failed to create dibsection(Not enough stoarge is available to process this command.) but that's a hurdle to tackle another time) but prints the grid lines, which is REALLY nice. One issue I have with both suggestions, however, is that for large tables (more than 1 page), it scales the text to fit onto one page. I had thought to emit a signal to call QPrinter::newPage(), but, I can't seem to do this with the QPainter you've set up.

I've also tried :

Qt Code:

Switch view

double totalHeight = 0.0;
for (int r = 0; r < 45; ++r){
        totalHeight += table->rowHeight(r);
}

double totalHeight = 0.0;
for (int r = 0; r < 45; ++r){
        totalHeight += table->rowHeight(r);
}

To copy to clipboard, switch view to plain text mode

for your examples, but this only prints 1 page as well. Do you know how I can tell QPainter to send a new page request to the Printer?

Again...Thank you very much for your help!!!

--D

**iraj_jelo** · 22nd May 2012, 14:07

hi friend . how i do translate this part code from c++ to python?

for (int c = 0; c < cols; ++c)
{
QModelIndex idx = model()->index(r, c);
QStyleOptionViewItem option = viewOptions();
option.rect = visualRect(idx);
itemDelegate()->paint(painter, option, idx);
}

**iraj_jelo** · 23rd May 2012, 08:57

Visit Here (pyqt printpreview QTableView )

**mandapally** · 6th February 2007, 11:48

{Two posts merged}

Hi All,

Iam Jagannath Mandapally

Hi All,

My Requirement is Print table , Means Generating .ps file and giving to APS Print but I have some issues.

1) Preview is not visible on APS Print

2) Printing table but ignoring some rows

3) Grid lines are not Printing

my code is :

Qt Code:

Switch view

void TableEditor::printt()
{
 
QPrinter printer(QPrinter::HighResolution);
//printer.setFullPage(true);
//printer.setPageSize(QPrinter::A4);
/*int rightMargin = printer.paperRect().right() - printer.pageRect().right();
 int bottomMargin = printer.paperRect().bottom() - printer.pageRect().bottom();
int leftMargin = printer.paperRect().left() - printer.pageRect().left();
int topMargin = printer.paperRect().top() - printer.pageRect().top();*/ //This is commented
//printer.margins(&topMargin,&leftMargin,&bottomMargin, &rightMargin);
 
printer.setOutputFileName("rtest.ps");
QPrintDialog dlg(&printer, this);
double totalWidth = 0.0;
double totalHeight = 0.0;
double totalPageHeight=0.0;
//QRect area;
if (dlg.exec() == QDialog::Accepted){
 const int rows=view->model()->rowCount();    
const int cols = view->model()->columnCount(); 
printf("no of rows\n %d",rows); 
printf("\n no of columns %d",cols);  
for (int c = 0; c < cols; ++c) { 
       totalWidth += view->columnWidth(c);    }    
for(int p=0; p<45; p++)   //45
{
totalPageHeight+= view->rowHeight(p);
 
 
}
for (int r = 0; r < rows; ++r)   
 {        totalHeight += view->rowHeight(r);    }
 
 
}  //if loop ending here
 
QPainter painter(&printer);
//QPainter::setRedirected(view->viewport(), &painter);    
//QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
//view->paintEvent(&event); 
//painter.drawLines(0,0,rows,cols);  
//QApplication::sendEvent(view->viewport(), &event);    
//QPainter::restoreRedirected(view->viewport());   //This is commented for testing row nums
//QPainter painter(&printer);
painter.begin(&printer);
const int rows=view->model()->rowCount();
const int columns=view->model()->columnCount();
printf("The num of rows are %d",rows);
QRect area = printer.paperRect(); // here should be pageRect
const double xscale = area.width() / totalWidth;        
const double yscale = area.height() / totalHeight;         
const double pscale = area.height() / totalPageHeight;        
 painter.scale(xscale+9, yscale+9);   // With the scaling 3 It is Printing all   
//painter.translate(area.x() + xscale, area.y() + pscale);  //This is original
painter.translate(area.x() + xscale, area.y() + yscale);        
//painter.save(); //commented
 int x=0;
 //int y=0 ;// This is introduced for the columns
//view->paintEvent(&event);
QPainter paint(this);
paint.setPen(Qt::red);
 paint.drawRect(0, 0, 0, 0);
 
QStyleOptionViewItem option;
 
for (int r=0; r<rows;  r++) 
{
++x;
 
for(int c=0; c<columns; c++)
{
    //++y;
 
 
             /*double xscale = printer.pageRect().width() / width();
            double yscale = printer.pageRect().height() / height();
             double scale = qMin(xscale, yscale);
            QRect rect = painter.viewport( );   */
            //QSize size = pixmap.size( );      
            //size.scale( rect.size( ), Qt::KeepAspectRatio );
             //painter.drawLines(0,0,rows,columns);
 
 
             QModelIndex idx = view->model()->index(r,c);            
             option = view->viewOptions();            
            option.rect =view->visualRect(idx);            
            view->itemDelegate()->paint(&painter, option, idx);
        // painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
 
        // painter.drawPixmap((r,c), pixmap, pixmap.rect());
 
        // if(page!=printer.numCopies())
} //columns are closed here
            if (x==39)
            {
             printf("This is inside if loop %d:",x);
              printer.newPage();
              x=0;
              //y=0;
              painter.translate(0, -1150);
                //painter.translate(0,-1000);
                 //painter.translate(0,-850);
                x=0; 
 
             // page++
              //painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());
 
              //x=0;
              painter.save();
             painter.restore();
 
            // break;
            }
 
         printf("%d",rows);
 
 
   // }
}
painter.end();
system("apsprint rtest.ps");
 
 
 
 
}

void TableEditor::printt()
{

QPrinter printer(QPrinter::HighResolution);
//printer.setFullPage(true);
//printer.setPageSize(QPrinter::A4);
/*int rightMargin = printer.paperRect().right() - printer.pageRect().right();
 int bottomMargin = printer.paperRect().bottom() - printer.pageRect().bottom();
int leftMargin = printer.paperRect().left() - printer.pageRect().left();
int topMargin = printer.paperRect().top() - printer.pageRect().top();*/ //This is commented
//printer.margins(&topMargin,&leftMargin,&bottomMargin, &rightMargin);

printer.setOutputFileName("rtest.ps");
QPrintDialog dlg(&printer, this);
double totalWidth = 0.0;
double totalHeight = 0.0;
double totalPageHeight=0.0;
//QRect area;
if (dlg.exec() == QDialog::Accepted){
 const int rows=view->model()->rowCount();    
const int cols = view->model()->columnCount(); 
printf("no of rows\n %d",rows); 
printf("\n no of columns %d",cols);  
for (int c = 0; c < cols; ++c) { 
       totalWidth += view->columnWidth(c);    }    
for(int p=0; p<45; p++)   //45
{
totalPageHeight+= view->rowHeight(p);


}
for (int r = 0; r < rows; ++r)   
 {        totalHeight += view->rowHeight(r);    }


}  //if loop ending here

QPainter painter(&printer);
//QPainter::setRedirected(view->viewport(), &painter);    
//QPaintEvent event(QRect(0, 0, totalWidth, totalHeight));
//view->paintEvent(&event); 
//painter.drawLines(0,0,rows,cols);  
//QApplication::sendEvent(view->viewport(), &event);    
//QPainter::restoreRedirected(view->viewport());   //This is commented for testing row nums
//QPainter painter(&printer);
painter.begin(&printer);
const int rows=view->model()->rowCount();
const int columns=view->model()->columnCount();
printf("The num of rows are %d",rows);
QRect area = printer.paperRect(); // here should be pageRect
const double xscale = area.width() / totalWidth;        
const double yscale = area.height() / totalHeight;         
const double pscale = area.height() / totalPageHeight;        
 painter.scale(xscale+9, yscale+9);   // With the scaling 3 It is Printing all   
//painter.translate(area.x() + xscale, area.y() + pscale);  //This is original
painter.translate(area.x() + xscale, area.y() + yscale);        
//painter.save(); //commented
 int x=0;
 //int y=0 ;// This is introduced for the columns
//view->paintEvent(&event);
QPainter paint(this);
paint.setPen(Qt::red);
 paint.drawRect(0, 0, 0, 0);

QStyleOptionViewItem option;

for (int r=0; r<rows;  r++) 
{
++x;

for(int c=0; c<columns; c++)
{
    //++y;

         
             /*double xscale = printer.pageRect().width() / width();
            double yscale = printer.pageRect().height() / height();
             double scale = qMin(xscale, yscale);
            QRect rect = painter.viewport( );   */
            //QSize size = pixmap.size( );      
            //size.scale( rect.size( ), Qt::KeepAspectRatio );
             //painter.drawLines(0,0,rows,columns);


             QModelIndex idx = view->model()->index(r,c);            
             option = view->viewOptions();            
            option.rect =view->visualRect(idx);            
            view->itemDelegate()->paint(&painter, option, idx);
        // painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());

        // painter.drawPixmap((r,c), pixmap, pixmap.rect());

        // if(page!=printer.numCopies())
} //columns are closed here
            if (x==39)
            {
             printf("This is inside if loop %d:",x);
              printer.newPage();
              x=0;
              //y=0;
              painter.translate(0, -1150);
                //painter.translate(0,-1000);
                 //painter.translate(0,-850);
                x=0; 

             // page++
              //painter.drawPixmap(printer.pageRect(), pixmap, pixmap.rect());

              //x=0;
              painter.save();
             painter.restore();

            // break;
            }

         printf("%d",rows);
        
           
   // }
}
painter.end();
system("apsprint rtest.ps");



         
}

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**jacek** · 6th February 2007, 17:27

Next time, please, use [code] tags, format your code properly and remove unnecessary lines.

**mandapally** · 9th February 2007, 08:25

Hi Jacek,

Thank U very much , I need solution desparately

BR
Jagannath

**jacek** · 9th February 2007, 11:22

First try cleaning your code, because it's unreadable.

Maybe you should consider creating a report in HTML using QTextDocument?

**baray98** · 23rd June 2010, 07:57

This was very helpful to my Problem with Printing from QTableModel but I have encountered some hick ups

when i print a cell i use this

Qt Code:

Switch view

//i have initialized my painter like this
    QPainter painter (printer);
    painter.scale(idealXScale, idealYScale);
    painter.setClipping(true);
    qDebug() << "hasClippings = "<< painter.hasClipping(); // this will always give me false

//i have initialized my painter like this
    QPainter painter (printer);
    painter.scale(idealXScale, idealYScale);
    painter.setClipping(true);
    qDebug() << "hasClippings = "<< painter.hasClipping(); // this will always give me false

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then i pass painter on to print a page

Qt Code:

Switch view

for (int r = info.startRow; r <= info.endRow; ++r)
    {
        for (int c = info.startCol; c <= info.endCol; ++c)
        {
            QModelIndex idx = model()->index(r,c);
            QStyleOptionViewItem option = viewOptions();
            option.rect = visualRect(idx);
            if (r % 2 == 0)
            {
                QBrush brush(QColor(220, 220, 220), Qt::SolidPattern);
                painter.fillRect(option.rect, brush);
            }
 
            itemDelegate()->paint(&painter, option, idx);
        }
    }

for (int r = info.startRow; r <= info.endRow; ++r)
    {
        for (int c = info.startCol; c <= info.endCol; ++c)
        {
            QModelIndex idx = model()->index(r,c);
            QStyleOptionViewItem option = viewOptions();
            option.rect = visualRect(idx);
            if (r % 2 == 0)
            {
                QBrush brush(QColor(220, 220, 220), Qt::SolidPattern);
                painter.fillRect(option.rect, brush);
            }

            itemDelegate()->paint(&painter, option, idx);
        }
    }

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now when the cell's content is clipped ( content not fully shown in the rect or maybe elided) then somehow the text will be printed but text is too big.

picture speaks a thousand words