knotes/knoteprinter.cpp

   1 #include "knoteprinter.h"
   2
   3 #include <QPainter>
   4 #include <QTextDocument>
   5 #include <QTextDocumentFragment>
   6 #include <QAbstractTextDocumentLayout>
   7 #include <QtGui/QPrinter>
   8 #include <QtGui/QPrintDialog>
   9
  10 #include <kcal/journal.h>
  11
  12 #include <klocale.h>
  13 #include <kdebug.h>
  14
  15 KNotePrinter::KNotePrinter()
  16 {
  17 }
  18
  19 void KNotePrinter::setDefaultFont( const QFont &font )
  20 {
  21   m_defaultFont = font;
  22 }
  23
  24 QFont KNotePrinter::defaultFont() const
  25 {
  26   return m_defaultFont;
  27 }
  28
  29 void KNotePrinter::doPrint( const QString &htmlText,
  30                             const QString &dialogCaption ) const
  31 {
  32   QPrinter printer( QPrinter::HighResolution );
  33   //printer.setFullPage( true );  //disabled, causes asymmetric margins
  34   QPrintDialog printDialog( &printer, 0 );
  35   printDialog.setWindowTitle( dialogCaption );
  36   if ( !printDialog.exec() ) {
  37     return;
  38   }
  39
  40   const int margin = 30; //pt     //set to 40 when setFullPage() works again
  41   int marginX = margin * printer.logicalDpiX() / 72;
  42   int marginY = margin * printer.logicalDpiY() / 72;
  43
  44   QRect typeArea( marginX, marginY,
  45                   printer.width() - marginX * 2,
  46                   printer.height() - marginY * 2 );
  47
  48   QTextDocument textDoc;
  49   textDoc.setHtml( htmlText );
  50   textDoc.documentLayout()->setPaintDevice( &printer );
  51   textDoc.setPageSize( typeArea.size() );
  52   textDoc.setDefaultFont( m_defaultFont );
  53
  54   QPainter painter( &printer );
  55   QRect clip( typeArea );
  56   painter.translate( marginX, marginY );
  57   clip.translate( -marginX, -marginY );
  58
  59   for ( int page = 1; page <= textDoc.pageCount(); page++ ) {
  60     textDoc.drawContents( &painter, clip );
  61     clip.translate( 0, typeArea.height() );
  62     painter.translate( 0, -typeArea.height() );
  63
  64     painter.setFont( m_defaultFont );
  65     painter.drawText(
  66       clip.right() - painter.fontMetrics().width( QString::number( page ) ),
  67       clip.bottom() + painter.fontMetrics().ascent() + 5,
  68       QString::number( page ) );
  69
  70     if ( page < textDoc.pageCount() ) {
  71       printer.newPage();
  72     }
  73   }
  74 }
  75
  76 void KNotePrinter::printNote( const QString &name,
  77                               const QString &htmlText ) const
  78 {
  79   QString dialogCaption = i18n( "Print %1", name );
  80   doPrint( htmlText, dialogCaption );
  81 }
  82
  83 void KNotePrinter::printNotes( const QList<KCal::Journal *>& journals ) const
  84 {
  85   if ( journals.isEmpty() ) {
  86     return;
  87   }
  88
  89   QString htmlText;
  90
  91   QListIterator<KCal::Journal *> it( journals );
  92   while ( it.hasNext() ) {
  93     KCal::Journal *j = it.next();
  94     htmlText += "<h2>" + j->summary() + "</h2>";
  95
  96     //### ensureHtmlText() is a hack.
  97     //Possible solution:
  98     //port most parts of KNotes to HTML (aka rich) text - it is easy enough to
  99     //pass plaintext as rich text (Qt:convertFromPlainText()) and the way back
 100     //should be doable, too.
 101     //Gold star solution: cleanly separate the two types - just never
 102     //pass a chunk of text without explicit type. Probably not worth it.
 103
 104     htmlText += ensureHtmlText( j->description() );
 105
 106     if ( it.hasNext() ) {
 107       htmlText += "<hr />";
 108     }
 109   }
 110
 111   QString dialogCaption = i18np( "Print Note", "Print %1 notes",
 112                                  journals.count() );
 113   doPrint( htmlText, dialogCaption );
 114
 115 #if 0
 116   //### This should work more reliably but it doesn't work at all.
 117
 118   QTextDocument ret;
 119   ret.setDefaultFont( m_defaultFont );
 120   QTextCursor retC( &ret );
 121   QTextDocument separator;
 122   separator.setHtml( "<html><body><br /><hr /><br /></body></html>" );
 123   QTextDocument header;
 124   QTextDocument note;
 125
 126   QListIterator<KCal::Journal *> it( journals );
 127   while ( it.hasNext() ) {
 128     KCal::Journal *j = it.next();
 129     header.setHtml( "<html><body><h2>" + j->summary() + "</h2></body></html>" );
 130     retC.insertFragment( QTextDocumentFragment( &header ) );
 131
 132     note.setHtml( ensureHtmlText( j->description() ) );
 133     retC.insertFragment( QTextDocumentFragment( &note ) );
 134
 135     if ( it.hasNext() ) {
 136       retC.insertFragment( QTextDocumentFragment( &separator ) );
 137     }
 138   }
 139
 140   QString dialogCaption = i18np( "Print Note", "Print %1 notes",
 141                                  journals.count() );
 142   doPrint( ret.toHtml(), dialogCaption );
 143 #endif
 144 }
 145
 146 inline QString KNotePrinter::ensureHtmlText( const QString &maybeRichText )
 147                                              const
 148 {
 149   if ( Qt::mightBeRichText( maybeRichText ) ) {
 150     return maybeRichText; //... now probablyRichText
 151   } else {
 152     return Qt::convertFromPlainText( maybeRichText );
 153   }
 154 }
 155