Print RichText and a scaled Picture

[kray]

Hello,

I want to print on a paper(or pdf...) a picture, scaled to the maximum of the page, according to the picture aspectRatio. Then I want to display under this picture some RichText.
I have found three solutions, but each one has a serious drawback

The fisrt one correctly resize the picture, but doesn't enable me to put RichText(only normal text). I made an example below

#include <QtGui>
 
int main(int argc, char *argv[])
{
 
QApplication app(argc, argv);
 QPushButton bouton("Just a Button");
    bouton.show();
 
 
QPrinter m_Printer(QPrinter::HighResolution);
m_Printer.setOutputFormat(QPrinter::PdfFormat);
m_Printer.setOutputFileName("baseprinted.pdf");    
QPainter painter (&m_Printer);
QRect rect = painter.viewport();                    
QRect OldWindow= painter.window();
QPixmap m_Image("c:\\picture.jpg");
QSize size = m_Image.size ();
size.scale (rect.size (), Qt::KeepAspectRatio);
painter.setViewport (0, 0, size.width (), size.height ());
painter.setWindow (m_Image.rect ());
painter.drawPixmap (m_Image.rect(), m_Image);
painter.setViewport(rect);
painter.setWindow(OldWindow);
QRect tmp;
QFont ComicMS("Comic Sans MS", 40);
painter.setFont(ComicMS);
tmp.setX(0);
tmp.setY(size.height());
tmp.setWidth(rect.width());
tmp.setHeight(rect.height()-size.height());
painter.drawText(tmp, Qt::AlignHCenter | Qt::AlignTop, "Texte <b>!</b>");
return app.exec();
}

#include <QtGui>

int main(int argc, char *argv[])
{

QApplication app(argc, argv);
 QPushButton bouton("Just a Button");
    bouton.show();


QPrinter m_Printer(QPrinter::HighResolution);
m_Printer.setOutputFormat(QPrinter::PdfFormat);
m_Printer.setOutputFileName("baseprinted.pdf");    
QPainter painter (&m_Printer);
QRect rect = painter.viewport();                    
QRect OldWindow= painter.window();
QPixmap m_Image("c:\\picture.jpg");
QSize size = m_Image.size ();
size.scale (rect.size (), Qt::KeepAspectRatio);
painter.setViewport (0, 0, size.width (), size.height ());
painter.setWindow (m_Image.rect ());
painter.drawPixmap (m_Image.rect(), m_Image);
painter.setViewport(rect);
painter.setWindow(OldWindow);
QRect tmp;
QFont ComicMS("Comic Sans MS", 40);
painter.setFont(ComicMS);
tmp.setX(0);
tmp.setY(size.height());
tmp.setWidth(rect.width());
tmp.setHeight(rect.height()-size.height());
painter.drawText(tmp, Qt::AlignHCenter | Qt::AlignTop, "Texte <b>!</b>");
return app.exec();
}

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The second one, enables me to put html, but the picture hasn't the good dimensions(it could be larger)

m_Printer.setOutputFormat(QPrinter::PdfFormat);
m_Printer.setOutputFileName("printed.pdf");    
m_Printer.setPageMargins(0,0,0,0,QPrinter::Point);
QTextDocument Docu;
Docu.addResource(QTextDocument::ImageResource, QUrl( "monImage.jpg" ), m_Image.scaled(  m_Printer.paperRect(QPrinter::Point).size().toSize() ,Qt::KeepAspectRatio, Qt::SmoothTransformation) );
Docu.setHtml("<img src=\"monImage.jpg\"/><br/><b>Hello</b> World");
Docu.print(&m_Printer);

m_Printer.setOutputFormat(QPrinter::PdfFormat);
m_Printer.setOutputFileName("printed.pdf");    
m_Printer.setPageMargins(0,0,0,0,QPrinter::Point);
QTextDocument Docu;
Docu.addResource(QTextDocument::ImageResource, QUrl( "monImage.jpg" ), m_Image.scaled(  m_Printer.paperRect(QPrinter::Point).size().toSize() ,Qt::KeepAspectRatio, Qt::SmoothTransformation) );
Docu.setHtml("<img src=\"monImage.jpg\"/><br/><b>Hello</b> World");
Docu.print(&m_Printer);

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Then the last solution. It works well, but the text is to small(it's logic). And I dont know how to add other text at the rigtht size.

m_Printer.setOutputFormat(QPrinter::PdfFormat);
m_Printer.setOutputFileName("mixteprinted.pdf");    
QPainter painter (&m_Printer);
QRect rect = painter.viewport();                    
QRect OldWindow= painter.window();
QSize size = m_Image.size ();
size.scale (rect.size (), Qt::KeepAspectRatio);
painter.setViewport (0, 0, size.width (), size.height ());
painter.setWindow (m_Image.rect ());
QTextDocument Docu;
Docu.addResource(QTextDocument::ImageResource, QUrl( "monImage.jpg" ), m_Image );
Docu.setHtml("<img src=\"monImage.jpg\"/><br/><b>Hello</b> World");
Docu.drawContents(&painter);
Docu.setHtml("<b>Hello</b> GUYS");
painter.setViewport(rect);
painter.setWindow(OldWindow);
QFont ComicMS("Comic Sans MS", 40);
Docu.setDefaultFont(ComicMS);
Docu.drawContents(&painter);

m_Printer.setOutputFormat(QPrinter::PdfFormat);
m_Printer.setOutputFileName("mixteprinted.pdf");    
QPainter painter (&m_Printer);
QRect rect = painter.viewport();                    
QRect OldWindow= painter.window();
QSize size = m_Image.size ();
size.scale (rect.size (), Qt::KeepAspectRatio);
painter.setViewport (0, 0, size.width (), size.height ());
painter.setWindow (m_Image.rect ());
QTextDocument Docu;
Docu.addResource(QTextDocument::ImageResource, QUrl( "monImage.jpg" ), m_Image );
Docu.setHtml("<img src=\"monImage.jpg\"/><br/><b>Hello</b> World");
Docu.drawContents(&painter);
Docu.setHtml("<b>Hello</b> GUYS");
painter.setViewport(rect);
painter.setWindow(OldWindow);
QFont ComicMS("Comic Sans MS", 40);
Docu.setDefaultFont(ComicMS);
Docu.drawContents(&painter);

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Each solution has a drawback that I cant avoid. I'm focused on the last solution, where my goal is then just to add some text at the right size after the Docu.drawContents(&painter);
But after many tryes, I can't find tsomething similar to painter.drawText() that put the text at the right size.

If you have any Ideas?

Thank you and Merry Christmas

[tpf80]

Here is how I worked out a similar issue for rich text PDF based off of Qwt example:

void PdfGenerate::generatePdf() {
 
 
	QPrinter printer; //create a printer
	printer.setOrientation(QPrinter::Portrait); //set theorientation of the paper
	printer.setOutputFormat(QPrinter::PdfFormat); //make that printer as a PDF
	printer.setOutputFileName("test.pdf"); //set the PDF file name
	printer.setPaperSize(QPrinter::Letter); //set paper size
	printer.setFullPage(true); //let our app use the full page (we handle margins ourself)
 
	setupLetterPoints(); //set up reference points for our coordinate system
 
	QPainter painter(&printer); //make a painter, which uses this printer,
 
 
 
	QTextDocument clause;
	QPixmap logo("logo.jpg", "JPG");
	clause.addResource(QTextDocument::ImageResource, QUrl("logo.jpg"), logo);
	clause.setHtml("<img src=\"logo.jpg\"><br><b>clause:</b> Here is some text<br>Here is another line of text");
	clause.setDefaultFont(QFont(fontFamily, fontsize));
	QRectF r5(leftmargin, topmargin, 500, 500); //space our textdocument is allowed to take up and where it should be located
	drawrichtext(&painter, r5, 0, clause);
 
	painter.end(); //done drawing, so save the PDF 
	//open the PDF for viewing:
	QString sOldPath = QCoreApplication::applicationDirPath();
	QDesktopServices::openUrl(QUrl::fromLocalFile(sOldPath + "/test.pdf"));
 
 
 
}
 
//set up the point coordinates for a letter sheet of paper:
void PdfGenerate::setupLetterPoints() {
	//(86 / inch) so it seems..
	pagewidth = 731; //8.5 inch
	pageheight = 946; //11 inch
 
	margin = 43; // 0.5 inch margin
 
	topmargin = margin;
	bottommargin = pageheight - margin;
	leftmargin = margin;
	rightmargin = pagewidth - margin;
 
	vertmarginwidth = pageheight - (margin * 2);
	horizmarginwidth = pagewidth - (margin * 2);
 
	//font sizes:
	fontFamily = "Times New Roman";
	fontsize = 15;
 
 
}
 
void PdfGenerate::drawrichtext(QPainter *painter, QRectF &rect, int flags, QTextDocument &text) {
 
    text.setPageSize(QSize(rect.width(), QWIDGETSIZE_MAX));
 
    QAbstractTextDocumentLayout* layout = text.documentLayout();
 
    const int height = qRound(layout->documentSize().height());
    int y = rect.y();
    if (flags & Qt::AlignBottom)
        y += (rect.height() - height);
    else if (flags & Qt::AlignVCenter)
        y += (rect.height() - height)/2;
 
    QAbstractTextDocumentLayout::PaintContext context;
    context.palette.setColor(QPalette::Text, painter->pen().color());
 
    painter->save();
 
    painter->translate(rect.x(), rect.y());
    layout->draw(painter, context);
 
    painter->restore();
}

void PdfGenerate::generatePdf() {


	QPrinter printer; //create a printer
	printer.setOrientation(QPrinter::Portrait); //set theorientation of the paper
	printer.setOutputFormat(QPrinter::PdfFormat); //make that printer as a PDF
	printer.setOutputFileName("test.pdf"); //set the PDF file name
	printer.setPaperSize(QPrinter::Letter); //set paper size
	printer.setFullPage(true); //let our app use the full page (we handle margins ourself)
	
	setupLetterPoints(); //set up reference points for our coordinate system
	
	QPainter painter(&printer); //make a painter, which uses this printer,

	

	QTextDocument clause;
	QPixmap logo("logo.jpg", "JPG");
	clause.addResource(QTextDocument::ImageResource, QUrl("logo.jpg"), logo);
	clause.setHtml("<img src=\"logo.jpg\"><br><b>clause:</b> Here is some text<br>Here is another line of text");
	clause.setDefaultFont(QFont(fontFamily, fontsize));
	QRectF r5(leftmargin, topmargin, 500, 500); //space our textdocument is allowed to take up and where it should be located
	drawrichtext(&painter, r5, 0, clause);

	painter.end(); //done drawing, so save the PDF 
	//open the PDF for viewing:
	QString sOldPath = QCoreApplication::applicationDirPath();
	QDesktopServices::openUrl(QUrl::fromLocalFile(sOldPath + "/test.pdf"));

   

}

//set up the point coordinates for a letter sheet of paper:
void PdfGenerate::setupLetterPoints() {
	//(86 / inch) so it seems..
	pagewidth = 731; //8.5 inch
	pageheight = 946; //11 inch
	
	margin = 43; // 0.5 inch margin
	
	topmargin = margin;
	bottommargin = pageheight - margin;
	leftmargin = margin;
	rightmargin = pagewidth - margin;
	
	vertmarginwidth = pageheight - (margin * 2);
	horizmarginwidth = pagewidth - (margin * 2);
	
	//font sizes:
	fontFamily = "Times New Roman";
	fontsize = 15;
	

}

void PdfGenerate::drawrichtext(QPainter *painter, QRectF &rect, int flags, QTextDocument &text) {

    text.setPageSize(QSize(rect.width(), QWIDGETSIZE_MAX));

    QAbstractTextDocumentLayout* layout = text.documentLayout();

    const int height = qRound(layout->documentSize().height());
    int y = rect.y();
    if (flags & Qt::AlignBottom)
        y += (rect.height() - height);
    else if (flags & Qt::AlignVCenter)
        y += (rect.height() - height)/2;

    QAbstractTextDocumentLayout::PaintContext context;
    context.palette.setColor(QPalette::Text, painter->pen().color());

    painter->save();

    painter->translate(rect.x(), rect.y());
    layout->draw(painter, context);

    painter->restore();
}

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