/*  This file is part of the KDE libraries and the Kate part.
 *
 *  Copyright (C) 2002-2010 Anders Lund <anders@alweb.dk>
 *
 *  Rewritten based on code of Copyright (c) 2002 Michael Goffioul <kdeprint@swing.be>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 */

#include "kateprinter.h"

#include "kateconfig.h"
#include "katedocument.h"
#include "kateglobal.h"
#include "katehighlight.h"
#include "katetextlayout.h"
#include "katerenderer.h"
#include "kateschema.h"
#include "katetextline.h"
#include "kateview.h"
#include "katebuffer.h"
#include "katetextfolding.h"

#include <kapplication.h>
#include <kcolorbutton.h>
#include <kdebug.h>
#include <kfontdialog.h>
#include <klocale.h>
#include <kdeprintdialog.h>
#include <kurl.h>
#include <kuser.h> // for loginName
#include <klineedit.h>
#include <knuminput.h>
#include <kcombobox.h>

#include <QtGui/QPainter>
#include <QtGui/QCheckBox>
#include <QtGui/QGroupBox>
#include <QtGui/QPrintDialog>
#include <QtGui/QPrinter>
#include <QtGui/QApplication>

#include <QtGui/QLabel>
#include <QtGui/QLayout>
#include <QtCore/QStringList>
#include <kvbox.h>

//BEGIN KatePrinter
void KatePrinter::readSettings(QPrinter& printer)
{
  // NOTE: Saving & loading the margins works around QPrinter/QPrintDialog bugs:
  // - https://bugreports.qt.nokia.com/browse/QTBUG-15351
  // - https://bugs.kde.org/show_bug.cgi?id=205802
  // - https://bugs.kde.org/show_bug.cgi?id=180051
  // Changing the margins now works. However, when you reopen the print dialog
  // later, the WRONG margins are displayed. The correct ones are still used.
  // This is a critical bug in Qt.

  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup group(config, "Kate Print Settings");
  KConfigGroup margins(&group, "Margins");

  qreal left, right, top, bottom;
  printer.getPageMargins(&left, &top, &right, &bottom, QPrinter::Millimeter);

  left = margins.readEntry("left", left);
  top = margins.readEntry("top", top);
  right = margins.readEntry("right", right);
  bottom = margins.readEntry("bottom", bottom);

  printer.setPageMargins(left, top, right, bottom, QPrinter::Millimeter);
}

void KatePrinter::writeSettings(QPrinter& printer)
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup group(config, "Kate Print Settings");
  KConfigGroup margins(&group, "Margins");

  qreal left, right, top, bottom;
  printer.getPageMargins(&left, &top, &right, &bottom, QPrinter::Millimeter);

  margins.writeEntry( "left", left);
  margins.writeEntry( "top", top);
  margins.writeEntry( "right", right);
  margins.writeEntry( "bottom", bottom);
}

bool KatePrinter::print (KateDocument *doc)
{
  QPrinter printer;
  readSettings(printer);

  // docname is now always there, including the right Untitled name
  printer.setDocName(doc->documentName());

  KatePrintTextSettings *kpts = new KatePrintTextSettings;
  KatePrintHeaderFooter *kphf = new KatePrintHeaderFooter;
  KatePrintLayout *kpl = new KatePrintLayout;

  QList<QWidget*> tabs;
  tabs << kpts;
  tabs << kphf;
  tabs << kpl;

  QWidget *parentWidget=doc->widget();

  if ( !parentWidget )
    parentWidget=QApplication::activeWindow();

  QScopedPointer<QPrintDialog> printDialog(KdePrint::createPrintDialog(&printer, KdePrint::SystemSelectsPages, tabs, parentWidget));

  if ( doc->activeView()->selection() ) {
    printer.setPrintRange(QPrinter::Selection);
    printDialog->setOption(QAbstractPrintDialog::PrintSelection, true);
  }

  if ( printDialog->exec() )
  {
    writeSettings(printer);

    Kate::TextFolding folding (doc->buffer());
    KateRenderer renderer(doc, folding, doc->activeKateView());
    renderer.config()->setSchema (kpl->colorScheme());
    renderer.setPrinterFriendly(true);

    QPainter paint( &printer );
    /*
     *        We work in tree cycles:
     *        1) initialize variables and retrieve print settings
     *        2) prepare data according to those settings
     *        3) draw to the printer
     */
    uint pdmWidth = printer.width();
    uint pdmHeight = printer.height();
    int y = 0;
    uint xstart = 0; // beginning point for painting lines
    uint lineCount = 0;
    uint maxWidth = pdmWidth;
    int headerWidth = pdmWidth;
    bool pageStarted = true;
    int remainder = 0; // remaining sublines from a wrapped line (for the top of a new page)

    // Text Settings Page
    bool selectionOnly = (printDialog->printRange() == QAbstractPrintDialog::Selection);
    bool useGuide = kpts->printGuide();

    bool printLineNumbers = kpts->printLineNumbers();
    uint lineNumberWidth( 0 );

    // Header/Footer Page
    QFont headerFont(kphf->font()); // used for header/footer

    bool useHeader = kphf->useHeader();
    QColor headerBgColor(kphf->headerBackground());
    QColor headerFgColor(kphf->headerForeground());
    uint headerHeight( 0 ); // further init only if needed
    QStringList headerTagList; // do
    bool headerDrawBg = false; // do

    bool useFooter = kphf->useFooter();
    QColor footerBgColor(kphf->footerBackground());
    QColor footerFgColor(kphf->footerForeground());
    uint footerHeight( 0 ); // further init only if needed
    QStringList footerTagList; // do
    bool footerDrawBg = false; // do

    // Layout Page
    renderer.config()->setSchema( kpl->colorScheme() );
    bool useBackground = kpl->useBackground();
    bool useBox = kpl->useBox();
    int boxWidth(kpl->boxWidth());
    QColor boxColor(kpl->boxColor());
    int innerMargin = useBox ? kpl->boxMargin() : 6;

    // Post initialization
    int maxHeight = (useBox ? pdmHeight-innerMargin : pdmHeight);
    uint currentPage( 1 );
    uint lastline = doc->lastLine(); // necessary to print selection only
    uint firstline( 0 );
    const int fontHeight = renderer.fontHeight();
    KTextEditor::Range selectionRange;

    /*
    *        Now on for preparations...
    *        during preparations, variable names starting with a "_" means
    *        those variables are local to the enclosing block.
    */
    {
      if ( selectionOnly )
      {
        // set a line range from the first selected line to the last
        selectionRange = doc->activeView()->selectionRange();
        firstline = selectionRange.start().line();
        lastline = selectionRange.end().line();
        lineCount = firstline;
      }

      if ( printLineNumbers )
      {
        // figure out the horiizontal space required
        QString s( QString("%1 ").arg( doc->lines() ) );
        s.fill('5', -1); // some non-fixed fonts haven't equally wide numbers
        // FIXME calculate which is actually the widest...
        lineNumberWidth = renderer.currentFontMetrics().width( s );
        // a small space between the line numbers and the text
        int _adj = renderer.currentFontMetrics().width( "5" );
        // adjust available width and set horizontal start point for data
        maxWidth -= (lineNumberWidth + _adj);
        xstart += lineNumberWidth + _adj;
      }

      if ( useHeader || useFooter )
      {
        // Set up a tag map
        // This retrieves all tags, ued or not, but
        // none of theese operations should be expensive,
        // and searcing each tag in the format strings is avoided.
        QDateTime dt = QDateTime::currentDateTime();
        QMap<QString,QString> tags;

        KUser u (KUser::UseRealUserID);
        tags["u"] = u.loginName();

        tags["d"] = KGlobal::locale()->formatDateTime(dt, KLocale::ShortDate);
        tags["D"] =  KGlobal::locale()->formatDateTime(dt, KLocale::LongDate);
        tags["h"] =  KGlobal::locale()->formatTime(dt.time(), false);
        tags["y"] =  KGlobal::locale()->formatDate(dt.date(), KLocale::ShortDate);
        tags["Y"] =  KGlobal::locale()->formatDate(dt.date(), KLocale::LongDate);
        tags["f"] =  doc->url().fileName();
        tags["U"] =  doc->url().pathOrUrl();
        if ( selectionOnly )
        {
          QString s( i18n("(Selection of) ") );
          tags["f"].prepend( s );
          tags["U"].prepend( s );
        }

        QRegExp reTags( "%([dDfUhuyY])" ); // TODO tjeck for "%%<TAG>"

        if (useHeader)
        {
          headerDrawBg = kphf->useHeaderBackground();
          headerHeight = QFontMetrics( headerFont ).height();
          if ( useBox || headerDrawBg )
            headerHeight += innerMargin * 2;
          else
            headerHeight += 1 + QFontMetrics( headerFont ).leading();

          headerTagList = kphf->headerFormat();
          QMutableStringListIterator it(headerTagList);
          while ( it.hasNext() ) {
            QString tag = it.next();
            int pos = reTags.indexIn( tag );
            QString rep;
            while ( pos > -1 )
            {
              rep = tags[reTags.cap( 1 )];
              tag.replace( (uint)pos, 2, rep );
              pos += rep.length();
              pos = reTags.indexIn( tag, pos );
            }
            it.setValue( tag );
          }

          if (!headerBgColor.isValid())
            headerBgColor = Qt::lightGray;
          if (!headerFgColor.isValid())
            headerFgColor = Qt::black;
        }

        if (useFooter)
        {
          footerDrawBg = kphf->useFooterBackground();
          footerHeight = QFontMetrics( headerFont ).height();
          if ( useBox || footerDrawBg )
            footerHeight += 2*innerMargin;
          else
            footerHeight += 1; // line only

          footerTagList = kphf->footerFormat();
          QMutableStringListIterator it(footerTagList);
          while ( it.hasNext() ) {
            QString tag = it.next();
            int pos = reTags.indexIn( tag );
            QString rep;
            while ( pos > -1 )
            {
              rep = tags[reTags.cap( 1 )];
              tag.replace( (uint)pos, 2, rep );
              pos += rep.length();
              pos = reTags.indexIn( tag, pos );
            }
            it.setValue( tag );
          }

          if (!footerBgColor.isValid())
            footerBgColor = Qt::lightGray;
          if (!footerFgColor.isValid())
            footerFgColor = Qt::black;
          // adjust maxheight, so we can know when/where to print footer
          maxHeight -= footerHeight;
        }
      } // if ( useHeader || useFooter )

      if ( useBackground )
      {
        if ( ! useBox )
        {
          xstart += innerMargin;
          maxWidth -= innerMargin * 2;
        }
      }

      if ( useBox )
      {
        if (!boxColor.isValid())
          boxColor = Qt::black;
        if (boxWidth < 1) // shouldn't be pssible no more!
          boxWidth = 1;
        // set maxwidth to something sensible
        maxWidth -= ( ( boxWidth + innerMargin )  * 2 );
        xstart += boxWidth + innerMargin;
        // maxheight too..
        maxHeight -= boxWidth;
      }
      else
        boxWidth = 0;

      // now that we know the vertical amount of space needed,
      // it is possible to calculate the total number of pages
      // if needed, that is if any header/footer tag contains "%P".
      if ( !headerTagList.filter("%P").isEmpty() || !footerTagList.filter("%P").isEmpty() )
      {
        kDebug(13020)<<"'%P' found! calculating number of pages...";
        int pageHeight = maxHeight;
        if ( useHeader )
          pageHeight -= ( headerHeight + innerMargin );
        if ( useFooter )
          pageHeight -= innerMargin;
        const int linesPerPage = pageHeight / fontHeight;
//         kDebug() << "Lines per page:" << linesPerPage;
        
        // calculate total layouted lines in the document
        int totalLines = 0;
        // TODO: right now ignores selection printing
        for (unsigned int i = firstline; i <= lastline; ++i) {
          KateLineLayoutPtr rangeptr(new KateLineLayout(renderer));
          rangeptr->setLine(i);
          renderer.layoutLine(rangeptr, (int)maxWidth, false);
          totalLines += rangeptr->viewLineCount();
        }
        int totalPages = (totalLines / linesPerPage)
                      + ((totalLines % linesPerPage) > 0 ? 1 : 0);
//         kDebug() << "_______ pages:" << (totalLines / linesPerPage);
//         kDebug() << "________ rest:" << (totalLines % linesPerPage);

        // TODO: add space for guide if required
//         if ( useGuide )
//           _lt += (guideHeight + (fontHeight /2)) / fontHeight;

        // substitute both tag lists
        QString re("%P");
        QStringList::Iterator it;
        for ( it=headerTagList.begin(); it!=headerTagList.end(); ++it )
          (*it).replace( re, QString( "%1" ).arg( totalPages ) );
        for ( it=footerTagList.begin(); it!=footerTagList.end(); ++it )
          (*it).replace( re, QString( "%1" ).arg( totalPages ) );
      }
    } // end prepare block

     /*
        On to draw something :-)
     */
    while (  lineCount <= lastline  )
    {
      if ( y + fontHeight > maxHeight )
      {
        kDebug(13020)<<"Starting new page,"<<lineCount<<"lines up to now.";
        printer.newPage();
        paint.resetTransform();
        currentPage++;
        pageStarted = true;
        y=0;
      }

      if ( pageStarted )
      {
        if ( useHeader )
        {
          paint.setPen(headerFgColor);
          paint.setFont(headerFont);
          if ( headerDrawBg )
            paint.fillRect(0, 0, headerWidth, headerHeight, headerBgColor);
          if (headerTagList.count() == 3)
          {
            int valign = ( (useBox||headerDrawBg||useBackground) ?
            Qt::AlignVCenter : Qt::AlignTop );
            int align = valign|Qt::AlignLeft;
            int marg = ( useBox || headerDrawBg ) ? innerMargin : 0;
            if ( useBox ) marg += boxWidth;
            QString s;
            for (int i=0; i<3; i++)
            {
              s = headerTagList[i];
              if (s.indexOf("%p") != -1) s.replace("%p", QString::number(currentPage));
              paint.drawText(marg, 0, headerWidth-(marg*2), headerHeight, align, s);
              align = valign|(i == 0 ? Qt::AlignHCenter : Qt::AlignRight);
            }
          }
          if ( ! ( headerDrawBg || useBox || useBackground ) ) // draw a 1 px (!?) line to separate header from contents
          {
            paint.drawLine( 0, headerHeight-1, headerWidth, headerHeight-1 );
            //y += 1; now included in headerHeight
          }
          y += headerHeight + innerMargin;
        }

        if ( useFooter )
        {
          paint.setPen(footerFgColor);
          if ( ! ( footerDrawBg || useBox || useBackground ) ) // draw a 1 px (!?) line to separate footer from contents
            paint.drawLine( 0, maxHeight + innerMargin - 1, headerWidth, maxHeight + innerMargin - 1 );
          if ( footerDrawBg )
            paint.fillRect(0, maxHeight+innerMargin+boxWidth, headerWidth, footerHeight, footerBgColor);
          if (footerTagList.count() == 3)
          {
            int align = Qt::AlignVCenter|Qt::AlignLeft;
            int marg = ( useBox || footerDrawBg ) ? innerMargin : 0;
            if ( useBox ) marg += boxWidth;
            QString s;
            for (int i=0; i<3; i++)
            {
              s = footerTagList[i];
              if (s.indexOf("%p") != -1) s.replace("%p", QString::number(currentPage));
              paint.drawText(marg, maxHeight+innerMargin, headerWidth-(marg*2), footerHeight, align, s);
              align = Qt::AlignVCenter|(i == 0 ? Qt::AlignHCenter : Qt::AlignRight);
            }
          }
        } // done footer

        if ( useBackground )
        {
          // If we have a box, or the header/footer has backgrounds, we want to paint
          // to the border of those. Otherwise just the contents area.
          int _y = y, _h = maxHeight - y;
          if ( useBox )
          {
            _y -= innerMargin;
            _h += 2 * innerMargin;
          }
          else
          {
            if ( headerDrawBg )
            {
              _y -= innerMargin;
              _h += innerMargin;
            }
            if ( footerDrawBg )
            {
              _h += innerMargin;
            }
          }
          paint.fillRect( 0, _y, pdmWidth, _h, renderer.config()->backgroundColor());
        }

        if ( useBox )
        {
          paint.setPen(QPen(boxColor, boxWidth));
          paint.drawRect(0, 0, pdmWidth, pdmHeight);
          if (useHeader)
            paint.drawLine(0, headerHeight, headerWidth, headerHeight);
          else
            y += innerMargin;

          if ( useFooter ) // drawline is not trustable, grr.
            paint.fillRect( 0, maxHeight+innerMargin, headerWidth, boxWidth, boxColor );
        }

        if ( useGuide && currentPage == 1 )
        {  // FIXME - this may span more pages...
          // draw a box unless we have boxes, in which case we end with a box line
          int _ystart = y;
          QString _hlName = doc->highlight()->name();

          QList<KateExtendedAttribute::Ptr> _attributes; // list of highlight attributes for the legend
          doc->highlight()->getKateExtendedAttributeList(kpl->colorScheme(), _attributes);

          KateAttributeList _defaultAttributes;
          KateHlManager::self()->getDefaults ( renderer.config()->schema(), _defaultAttributes );

          QColor _defaultPen = _defaultAttributes.at(0)->foreground().color();
          paint.setPen(_defaultPen);

          int _marg = 0;
          if ( useBox )
            _marg += (2*boxWidth) + (2*innerMargin);
          else
          {
            if ( useBackground )
              _marg += 2*innerMargin;
            _marg += 1;
            y += 1 + innerMargin;
          }

          // draw a title string
          QFont _titleFont = renderer.config()->font();
          _titleFont.setBold(true);
          paint.setFont( _titleFont );
          QRect _r;
          paint.drawText( QRect(_marg, y, pdmWidth-(2*_marg), maxHeight - y),
            Qt::AlignTop|Qt::AlignHCenter,
            i18n("Typographical Conventions for %1", _hlName ), &_r );
          int _w = pdmWidth - (_marg*2) - (innerMargin*2);
          int _x = _marg + innerMargin;
          y += _r.height() + innerMargin;
          paint.drawLine( _x, y, _x + _w, y );
          y += 1 + innerMargin;

          int _widest( 0 );
          foreach (const KateExtendedAttribute::Ptr &attribute, _attributes)
            _widest = qMax(QFontMetrics(attribute->font()).width(attribute->name().section(':',1,1)), _widest);

          int _guideCols = _w/( _widest + innerMargin );

          // draw attrib names using their styles
          int _cw = _w/_guideCols;
          int _i(0);

          _titleFont.setUnderline(true);
          QString _currentHlName;
          foreach (const KateExtendedAttribute::Ptr &attribute, _attributes)
          {
            QString _hl = attribute->name().section(':',0,0);
            QString _name = attribute->name().section(':',1,1);
            if ( _hl != _hlName && _hl != _currentHlName ) {
              _currentHlName = _hl;
              if ( _i%_guideCols )
                y += fontHeight;
              y += innerMargin;
              paint.setFont(_titleFont);
              paint.setPen(_defaultPen);
              paint.drawText( _x, y, _w, fontHeight, Qt::AlignTop, _hl + ' ' + i18n("text") );
              y += fontHeight;
              _i = 0;
            }

            KTextEditor::Attribute _attr =  *_defaultAttributes[attribute->defaultStyleIndex()];
            _attr += *attribute;
            paint.setPen( _attr.foreground().color() );
            paint.setFont( _attr.font() );

            if (_attr.hasProperty(QTextFormat::BackgroundBrush) ) {
              QRect _rect = QFontMetrics(_attr.font()).boundingRect(_name);
              _rect.moveTo(_x + ((_i%_guideCols)*_cw), y);
               paint.fillRect(_rect, _attr.background() );
            }

            paint.drawText(( _x + ((_i%_guideCols)*_cw)), y, _cw, fontHeight, Qt::AlignTop, _name );

            _i++;
            if ( _i && ! ( _i%_guideCols ) )
              y += fontHeight;
          }

          if ( _i%_guideCols )
            y += fontHeight;// last row not full

          // draw a box around the legend
          paint.setPen ( _defaultPen );
          if ( useBox )
            paint.fillRect( 0, y+innerMargin, headerWidth, boxWidth, boxColor );
          else
          {
            _marg -=1;
            paint.drawRect( _marg, _ystart, pdmWidth-(2*_marg), y-_ystart+innerMargin );
          }

          y += ( useBox ? boxWidth : 1 ) + (innerMargin*2);
        } // useGuide

        paint.translate(xstart,y);
        pageStarted = false;
      } // pageStarted; move on to contents:)

      if ( printLineNumbers /*&& ! startCol*/ ) // don't repeat!
      {
        paint.setFont( renderer.config()->font() );
        paint.setPen( renderer.config()->lineNumberColor() );
        paint.drawText( (( useBox || useBackground ) ? innerMargin : 0)-xstart, 0,
                    lineNumberWidth, fontHeight,
                    Qt::AlignRight, QString("%1").arg( lineCount + 1 ) );
      }

      // HA! this is where we print [part of] a line ;]]
      // FIXME Convert this function + related functionality to a separate KatePrintView
      KateLineLayoutPtr rangeptr(new KateLineLayout(renderer));
      rangeptr->setLine(lineCount);
      renderer.layoutLine(rangeptr, (int)maxWidth, false);

      // selectionOnly: clip non-selection parts and adjust painter position if needed
      int _xadjust = 0;
      if (selectionOnly) {
        if (doc->activeView()->blockSelection()) {
          int _x = renderer.cursorToX(rangeptr->viewLine(0), selectionRange.start());
          int _x1 = renderer.cursorToX(rangeptr->viewLine(rangeptr->viewLineCount()-1), selectionRange.end());
           _xadjust = _x;
           paint.translate(-_xadjust, 0);
          paint.setClipRegion(QRegion( _x, 0, _x1 - _x, rangeptr->viewLineCount()*fontHeight));
        }

        else if (lineCount == firstline || lineCount == lastline) {
          QRegion region(0, 0, maxWidth, rangeptr->viewLineCount()*fontHeight);

          if ( lineCount == firstline) {
            region = region.subtracted(QRegion(0, 0, renderer.cursorToX(rangeptr->viewLine(0), selectionRange.start()), fontHeight));
          }

          if (lineCount == lastline) {
            int _x = renderer.cursorToX(rangeptr->viewLine(rangeptr->viewLineCount()-1), selectionRange.end());
            region = region.subtracted(QRegion(_x, 0, maxWidth-_x, fontHeight));
          }

          paint.setClipRegion(region);
        }
      }

      // If the line is too long (too many 'viewlines') to fit the remaining vertical space,
      // clip and adjust the painter position as necessary
      int _lines = rangeptr->viewLineCount(); // number of "sublines" to paint.

      int proceedLines = _lines;
      if (remainder) {
        proceedLines = qMin((maxHeight - y) / fontHeight, remainder);

        paint.translate(0, -(_lines-remainder)*fontHeight+1);
        paint.setClipRect(0, (_lines-remainder)*fontHeight+1, maxWidth, proceedLines*fontHeight); //### drop the crosspatch in printerfriendly mode???
        remainder -= proceedLines;
      }
      else if (y + fontHeight * _lines > maxHeight) {
        remainder = _lines - ((maxHeight-y)/fontHeight);
        paint.setClipRect(0, 0, maxWidth, (_lines-remainder)*fontHeight+1); //### drop the crosspatch in printerfriendly mode???
      }

      renderer.paintTextLine(paint, rangeptr, 0, (int)maxWidth);

      paint.setClipping(false);
      paint.translate(_xadjust, (fontHeight * (_lines-remainder)));

      y += fontHeight * proceedLines;

      if ( ! remainder )
      lineCount++;
    } // done lineCount <= lastline

    paint.end();
    return true;
  }
  return false;
}
//END KatePrinter

//BEGIN KatePrintTextSettings
KatePrintTextSettings::KatePrintTextSettings( QWidget *parent )
  : QWidget( parent )
{
  setWindowTitle( i18n("Te&xt Settings") );

  QVBoxLayout *lo = new QVBoxLayout ( this );

  cbLineNumbers = new QCheckBox( i18n("Print line &numbers"), this );
  lo->addWidget( cbLineNumbers );

  cbGuide = new QCheckBox( i18n("Print &legend"), this );
  lo->addWidget( cbGuide );

  lo->addStretch( 1 );

  // set defaults - nothing to do :-)

  // whatsthis
  cbLineNumbers->setWhatsThis(i18n(
        "<p>If enabled, line numbers will be printed on the left side of the page(s).</p>") );
  cbGuide->setWhatsThis(i18n(
        "<p>Print a box displaying typographical conventions for the document type, as "
        "defined by the syntax highlighting being used.</p>") );
  
  readSettings();
}

KatePrintTextSettings::~KatePrintTextSettings()
{
  writeSettings();
}

bool KatePrintTextSettings::printLineNumbers()
{
  return cbLineNumbers->isChecked();
}

bool KatePrintTextSettings::printGuide()
{
  return cbGuide->isChecked();
}

void KatePrintTextSettings::readSettings()
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup printGroup( config, "Kate Print Settings" );
  
  KConfigGroup textGroup( &printGroup, "Text" );
  bool isLineNumbersChecked = textGroup.readEntry( "LineNumbers", false );
  cbLineNumbers->setChecked( isLineNumbersChecked );

  bool isLegendChecked = textGroup.readEntry( "Legend", false );
  cbGuide->setChecked( isLegendChecked );
}
    
void KatePrintTextSettings::writeSettings()
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup printGroup( config, "Kate Print Settings" );
  
  KConfigGroup textGroup( &printGroup, "Text" );
  textGroup.writeEntry( "LineNumbers", printLineNumbers() );
  textGroup.writeEntry( "Legend", printGuide() );
  
  config->sync();
}

//END KatePrintTextSettings

//BEGIN KatePrintHeaderFooter
KatePrintHeaderFooter::KatePrintHeaderFooter( QWidget *parent )
  : QWidget( parent )
{
  setWindowTitle( i18n("Hea&der && Footer") );

  QVBoxLayout *lo = new QVBoxLayout ( this );

  // enable
  QHBoxLayout *lo1 = new QHBoxLayout ();
  lo->addLayout( lo1 );
  cbEnableHeader = new QCheckBox( i18n("Pr&int header"), this );
  lo1->addWidget( cbEnableHeader );
  cbEnableFooter = new QCheckBox( i18n("Pri&nt footer"), this );
  lo1->addWidget( cbEnableFooter );

  // font
  QHBoxLayout *lo2 = new QHBoxLayout();
  lo->addLayout( lo2 );
  lo2->addWidget( new QLabel( i18n("Header/footer font:"), this ) );
  lFontPreview = new QLabel( this );
  lFontPreview->setFrameStyle( QFrame::Panel|QFrame::Sunken );
  lo2->addWidget( lFontPreview );
  lo2->setStretchFactor( lFontPreview, 1 );
  QPushButton *btnChooseFont = new QPushButton( i18n("Choo&se Font..."), this );
  lo2->addWidget( btnChooseFont );
  connect( btnChooseFont, SIGNAL(clicked()), this, SLOT(setHFFont()) );

  // header
  gbHeader = new QGroupBox( this );
  gbHeader->setTitle(i18n("Header Properties"));
  QGridLayout* grid = new QGridLayout(gbHeader);
  lo->addWidget( gbHeader );

  QLabel *lHeaderFormat = new QLabel( i18n("&Format:"), gbHeader );
  grid->addWidget(lHeaderFormat, 0, 0);

  KHBox *hbHeaderFormat = new KHBox( gbHeader );
  grid->addWidget(hbHeaderFormat, 0, 1);

  leHeaderLeft = new KLineEdit( hbHeaderFormat );
  leHeaderCenter = new KLineEdit( hbHeaderFormat );
  leHeaderRight = new KLineEdit( hbHeaderFormat );
  lHeaderFormat->setBuddy( leHeaderLeft );

  leHeaderLeft->setContextMenuPolicy(Qt::CustomContextMenu);
  leHeaderCenter->setContextMenuPolicy(Qt::CustomContextMenu);
  leHeaderRight->setContextMenuPolicy(Qt::CustomContextMenu);
  connect(leHeaderLeft, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));
  connect(leHeaderCenter, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));
  connect(leHeaderRight, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));

  grid->addWidget(new QLabel( i18n("Colors:"), gbHeader ), 1, 0);

  KHBox *hbHeaderColors = new KHBox( gbHeader );
  grid->addWidget(hbHeaderColors, 1, 1);

  hbHeaderColors->setSpacing( -1 );
  QLabel *lHeaderFgCol = new QLabel( i18n("Foreground:"), hbHeaderColors );
  kcbtnHeaderFg = new KColorButton( hbHeaderColors );
  lHeaderFgCol->setBuddy( kcbtnHeaderFg );
  cbHeaderEnableBgColor = new QCheckBox( i18n("Bac&kground"), hbHeaderColors );
  kcbtnHeaderBg = new KColorButton( hbHeaderColors );

  gbFooter = new QGroupBox( this );
  gbFooter->setTitle(i18n("Footer Properties"));
  grid = new QGridLayout(gbFooter);
  lo->addWidget( gbFooter );

  // footer
  QLabel *lFooterFormat = new QLabel( i18n("For&mat:"), gbFooter );
  grid->addWidget(lFooterFormat, 0, 0);

  KHBox *hbFooterFormat = new KHBox( gbFooter );
  grid->addWidget(hbFooterFormat, 0, 1);

  hbFooterFormat->setSpacing( -1 );
  leFooterLeft = new KLineEdit( hbFooterFormat );
  leFooterCenter = new KLineEdit( hbFooterFormat );
  leFooterRight = new KLineEdit( hbFooterFormat );
  lFooterFormat->setBuddy( leFooterLeft );
  
  leFooterLeft->setContextMenuPolicy(Qt::CustomContextMenu);
  leFooterCenter->setContextMenuPolicy(Qt::CustomContextMenu);
  leFooterRight->setContextMenuPolicy(Qt::CustomContextMenu);
  connect(leFooterLeft, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));
  connect(leFooterCenter, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));
  connect(leFooterRight, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showContextMenu(QPoint)));

  grid->addWidget(new QLabel( i18n("Colors:"), gbFooter ), 1, 0);

  KHBox *hbFooterColors = new KHBox( gbFooter );
  grid->addWidget(hbFooterColors, 1, 1);

  hbFooterColors->setSpacing( -1 );
  QLabel *lFooterBgCol = new QLabel( i18n("Foreground:"), hbFooterColors );
  kcbtnFooterFg = new KColorButton( hbFooterColors );
  lFooterBgCol->setBuddy( kcbtnFooterFg );
  cbFooterEnableBgColor = new QCheckBox( i18n("&Background"), hbFooterColors );
  kcbtnFooterBg = new KColorButton( hbFooterColors );

  lo->addStretch( 1 );

  // user friendly
  connect( cbEnableHeader, SIGNAL(toggled(bool)), gbHeader, SLOT(setEnabled(bool)) );
  connect( cbEnableFooter, SIGNAL(toggled(bool)), gbFooter, SLOT(setEnabled(bool)) );
  connect( cbHeaderEnableBgColor, SIGNAL(toggled(bool)), kcbtnHeaderBg, SLOT(setEnabled(bool)) );
  connect( cbFooterEnableBgColor, SIGNAL(toggled(bool)), kcbtnFooterBg, SLOT(setEnabled(bool)) );

  // set defaults
  cbEnableHeader->setChecked( true );
  leHeaderLeft->setText( "%y" );
  leHeaderCenter->setText( "%f" );
  leHeaderRight->setText( "%p" );
  kcbtnHeaderFg->setColor( QColor("black") );
  cbHeaderEnableBgColor->setChecked( false );
  kcbtnHeaderBg->setColor( QColor("lightgrey") );

  cbEnableFooter->setChecked( true );
  leFooterRight->setText( "%U" );
  kcbtnFooterFg->setColor( QColor("black") );
  cbFooterEnableBgColor->setChecked( false );
  kcbtnFooterBg->setColor( QColor("lightgrey") );

  // whatsthis
  QString  s = i18n("<p>Format of the page header. The following tags are supported:</p>");
  QString s1 = i18n(
      "<ul><li><tt>%u</tt>: current user name</li>"
      "<li><tt>%d</tt>: complete date/time in short format</li>"
      "<li><tt>%D</tt>: complete date/time in long format</li>"
      "<li><tt>%h</tt>: current time</li>"
      "<li><tt>%y</tt>: current date in short format</li>"
      "<li><tt>%Y</tt>: current date in long format</li>"
      "<li><tt>%f</tt>: file name</li>"
      "<li><tt>%U</tt>: full URL of the document</li>"
      "<li><tt>%p</tt>: page number</li>"
      "<li><tt>%P</tt>: total amount of pages</li>"
      "</ul><br />");
  leHeaderRight->setWhatsThis(s + s1 );
  leHeaderCenter->setWhatsThis(s + s1 );
  leHeaderLeft->setWhatsThis(s + s1 );
  s = i18n("<p>Format of the page footer. The following tags are supported:</p>");
  leFooterRight->setWhatsThis(s + s1 );
  leFooterCenter->setWhatsThis(s + s1 );
  leFooterLeft->setWhatsThis(s + s1 );
  
  readSettings();
}

KatePrintHeaderFooter::~KatePrintHeaderFooter()
{
  writeSettings();
}

QFont KatePrintHeaderFooter::font()
{
    return lFontPreview->font();
}

bool KatePrintHeaderFooter::useHeader()
{
  return cbEnableHeader->isChecked();
}

QStringList KatePrintHeaderFooter::headerFormat()
{
  QStringList l;
  l << leHeaderLeft->text() << leHeaderCenter->text() << leHeaderRight->text();
  return l;
}

QColor KatePrintHeaderFooter::headerForeground()
{
  return kcbtnHeaderFg->color();
}

QColor KatePrintHeaderFooter::headerBackground()
{
  return kcbtnHeaderBg->color();
}

bool KatePrintHeaderFooter::useHeaderBackground()
{
  return cbHeaderEnableBgColor->isChecked();
}

bool KatePrintHeaderFooter::useFooter()
{
  return cbEnableFooter->isChecked();
}

QStringList KatePrintHeaderFooter::footerFormat()
{
  QStringList l;
  l<< leFooterLeft->text() << leFooterCenter->text() << leFooterRight->text();
  return l;
}

QColor KatePrintHeaderFooter::footerForeground()
{
  return kcbtnFooterFg->color();
}

QColor KatePrintHeaderFooter::footerBackground()
{
  return kcbtnFooterBg->color();
}

bool KatePrintHeaderFooter::useFooterBackground()
{
  return cbFooterEnableBgColor->isChecked();
}

void KatePrintHeaderFooter::setHFFont()
{
  QFont fnt( lFontPreview->font() );
  // display a font dialog
  if ( KFontDialog::getFont( fnt, KFontChooser::NoDisplayFlags, this ) == KFontDialog::Accepted )
  {
    // set preview
    lFontPreview->setFont( fnt );
    lFontPreview->setText( QString(fnt.family() + ", %1pt").arg( fnt.pointSize() ) );
  }
}

void KatePrintHeaderFooter::showContextMenu(const QPoint& pos)
{
  QLineEdit* lineEdit = qobject_cast<QLineEdit*>(sender());
  if (!lineEdit) {
    return;
  }

  QMenu* const contextMenu = lineEdit->createStandardContextMenu();
  if (contextMenu == NULL) {
    return;
  }
  contextMenu->addSeparator();

  // create original context menu
  QMenu* menu = contextMenu->addMenu(i18n("Add Placeholder..."));
  menu->setIcon(KIcon("list-add"));
  QAction* a = menu->addAction(i18n("Current User Name") + "\t%u");
  a->setData("%u");
  a = menu->addAction(i18n("Complete Date/Time (short format)") + "\t%d");
  a->setData("%d");
  a = menu->addAction(i18n("Complete Date/Time (long format)") + "\t%D");
  a->setData("%D");
  a = menu->addAction(i18n("Current Time") + "\t%h");
  a->setData("%h");
  a = menu->addAction(i18n("Current Date (short format)") + "\t%y");
  a->setData("%y");
  a = menu->addAction(i18n("Current Date (long format)") + "\t%Y");
  a->setData("%Y");
  a = menu->addAction(i18n("File Name") + "\t%f");
  a->setData("%f");
  a = menu->addAction(i18n("Full document URL") + "\t%U");
  a->setData("%U");
  a = menu->addAction(i18n("Page Number") + "\t%p");
  a->setData("%p");
  a = menu->addAction(i18n("Total Amount of Pages") + "\t%P");
  a->setData("%P");

  QAction* const result = contextMenu->exec(lineEdit->mapToGlobal(pos));
  if (result) {
    QString placeHolder = result->data().toString();
    if (!placeHolder.isEmpty()) {
      lineEdit->insert(placeHolder);
    }
  }
}

void KatePrintHeaderFooter::readSettings()
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup printGroup( config, "Kate Print Settings" );
  
  // Header
  KConfigGroup headerFooterGroup( &printGroup, "HeaderFooter" );
  bool isHeaderEnabledChecked = headerFooterGroup.readEntry( "HeaderEnabled", true );
  cbEnableHeader->setChecked( isHeaderEnabledChecked );

  QString headerFormatLeft = headerFooterGroup.readEntry( "HeaderFormatLeft", "%y" );
  leHeaderLeft->setText( headerFormatLeft );

  QString headerFormatCenter = headerFooterGroup.readEntry( "HeaderFormatCenter", "%f" );
  leHeaderCenter->setText( headerFormatCenter );

  QString headerFormatRight = headerFooterGroup.readEntry( "HeaderFormatRight", "%p" );
  leHeaderRight->setText( headerFormatRight );

  QColor headerForeground = headerFooterGroup.readEntry( "HeaderForeground", QColor("black") );
  kcbtnHeaderFg->setColor( headerForeground );

  bool isHeaderBackgroundChecked = headerFooterGroup.readEntry( "HeaderBackgroundEnabled", false );
  cbHeaderEnableBgColor->setChecked( isHeaderBackgroundChecked );

  QColor headerBackground = headerFooterGroup.readEntry( "HeaderBackground", QColor("lightgrey") );
  kcbtnHeaderBg->setColor( headerBackground );
  
  // Footer
  bool isFooterEnabledChecked = headerFooterGroup.readEntry( "FooterEnabled", true );
  cbEnableFooter->setChecked( isFooterEnabledChecked );

  QString footerFormatLeft = headerFooterGroup.readEntry( "FooterFormatLeft", QString() );
  leFooterLeft->setText( footerFormatLeft );

  QString footerFormatCenter = headerFooterGroup.readEntry( "FooterFormatCenter", QString() );
  leFooterCenter->setText( footerFormatCenter );

  QString footerFormatRight = headerFooterGroup.readEntry( "FooterFormatRight", "%U" );
  leFooterRight->setText( footerFormatRight );

  QColor footerForeground = headerFooterGroup.readEntry( "FooterForeground", QColor("black") );
  kcbtnFooterFg->setColor( footerForeground );

  bool isFooterBackgroundChecked = headerFooterGroup.readEntry( "FooterBackgroundEnabled", false );
  cbFooterEnableBgColor->setChecked( isFooterBackgroundChecked );

  QColor footerBackground = headerFooterGroup.readEntry( "FooterBackground", QColor("lightgrey") );
  kcbtnFooterBg->setColor( footerBackground );

  // Font
  QFont headerFooterFont = headerFooterGroup.readEntry( "HeaderFooterFont", QFont() );
  lFontPreview->setFont( headerFooterFont );
  lFontPreview->setText( QString(headerFooterFont.family() + ", %1pt").arg( headerFooterFont.pointSize() ) );
}
    
void KatePrintHeaderFooter::writeSettings()
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup printGroup( config, "Kate Print Settings" );
  
  // Header
  KConfigGroup headerFooterGroup( &printGroup, "HeaderFooter" );
  headerFooterGroup.writeEntry( "HeaderEnabled", useHeader() );

  QStringList format = headerFormat();
  headerFooterGroup.writeEntry( "HeaderFormatLeft", format[0] );
  headerFooterGroup.writeEntry( "HeaderFormatCenter", format[1] );
  headerFooterGroup.writeEntry( "HeaderFormatRight", format[2] );
  headerFooterGroup.writeEntry( "HeaderForeground", headerForeground() );
  headerFooterGroup.writeEntry( "HeaderBackgroundEnabled", useHeaderBackground() );
  headerFooterGroup.writeEntry( "HeaderBackground", headerBackground() );
  
  // Footer
  headerFooterGroup.writeEntry( "FooterEnabled", useFooter() );

  format = footerFormat();
  headerFooterGroup.writeEntry( "FooterFormatLeft", format[0] );
  headerFooterGroup.writeEntry( "FooterFormatCenter", format[1] );
  headerFooterGroup.writeEntry( "FooterFormatRight", format[2] );
  headerFooterGroup.writeEntry( "FooterForeground", footerForeground() );
  headerFooterGroup.writeEntry( "FooterBackgroundEnabled", useFooterBackground() );
  headerFooterGroup.writeEntry( "FooterBackground", footerBackground() );

  // Font
  headerFooterGroup.writeEntry( "HeaderFooterFont", font() );

  config->sync();
}

//END KatePrintHeaderFooter

//BEGIN KatePrintLayout

KatePrintLayout::KatePrintLayout( QWidget *parent)
  : QWidget( parent )
{
  setWindowTitle( i18n("L&ayout") );

  QVBoxLayout *lo = new QVBoxLayout ( this );

  KHBox *hb = new KHBox( this );
  lo->addWidget( hb );
  QLabel *lSchema = new QLabel( i18n("&Schema:"), hb );
  cmbSchema = new KComboBox( hb );
  cmbSchema->setEditable( false );
  lSchema->setBuddy( cmbSchema );

  cbDrawBackground = new QCheckBox( i18n("Draw bac&kground color"), this );
  lo->addWidget( cbDrawBackground );

  cbEnableBox = new QCheckBox( i18n("Draw &boxes"), this );
  lo->addWidget( cbEnableBox );

  gbBoxProps = new QGroupBox( this );
  gbBoxProps->setTitle(i18n("Box Properties"));
  QGridLayout* grid = new QGridLayout(gbBoxProps);
  lo->addWidget( gbBoxProps );

  QLabel *lBoxWidth = new QLabel( i18n("W&idth:"), gbBoxProps );
  grid->addWidget(lBoxWidth, 0, 0);
  sbBoxWidth = new KIntSpinBox( gbBoxProps );
  sbBoxWidth->setRange( 1, 100 );
  sbBoxWidth->setSingleStep( 1 );
  grid->addWidget(sbBoxWidth, 0, 1);
  lBoxWidth->setBuddy( sbBoxWidth );

  QLabel *lBoxMargin = new QLabel( i18n("&Margin:"), gbBoxProps );
  grid->addWidget(lBoxMargin, 1, 0);
  sbBoxMargin = new KIntSpinBox( gbBoxProps );
  sbBoxMargin->setRange( 0, 100 );
  sbBoxMargin->setSingleStep( 1 );
  grid->addWidget(sbBoxMargin, 1, 1);
  lBoxMargin->setBuddy( sbBoxMargin );

  QLabel *lBoxColor = new QLabel( i18n("Co&lor:"), gbBoxProps );
  grid->addWidget(lBoxColor, 2, 0);
  kcbtnBoxColor = new KColorButton( gbBoxProps );
  grid->addWidget(kcbtnBoxColor, 2, 1);
  lBoxColor->setBuddy( kcbtnBoxColor );

  connect( cbEnableBox, SIGNAL(toggled(bool)), gbBoxProps, SLOT(setEnabled(bool)) );

  lo->addStretch( 1 );
  // set defaults:
  sbBoxMargin->setValue( 6 );
  gbBoxProps->setEnabled( false );
  
  Q_FOREACH (const KateSchema &schema, KateGlobal::self()->schemaManager()->list())
    cmbSchema->addItem (schema.translatedName(), QVariant (schema.rawName));
    
  // default is printing, MUST BE THERE
  cmbSchema->setCurrentIndex (cmbSchema->findData (QVariant("Printing")));

  // whatsthis
  cmbSchema->setWhatsThis(i18n(
        "Select the color scheme to use for the print." ) );
  cbDrawBackground->setWhatsThis(i18n(
        "<p>If enabled, the background color of the editor will be used.</p>"
        "<p>This may be useful if your color scheme is designed for a dark background.</p>") );
  cbEnableBox->setWhatsThis(i18n(
        "<p>If enabled, a box as defined in the properties below will be drawn "
        "around the contents of each page. The Header and Footer will be separated "
        "from the contents with a line as well.</p>") );
  sbBoxWidth->setWhatsThis(i18n(
        "The width of the box outline" ) );
  sbBoxMargin->setWhatsThis(i18n(
        "The margin inside boxes, in pixels") );
  kcbtnBoxColor->setWhatsThis(i18n(
        "The line color to use for boxes") );
  
  readSettings();
}

KatePrintLayout::~KatePrintLayout()
{
  writeSettings();
}

QString KatePrintLayout::colorScheme()
{
  return cmbSchema->itemData(cmbSchema->currentIndex()).toString();
}

bool KatePrintLayout::useBackground()
{
  return cbDrawBackground->isChecked();
}

bool KatePrintLayout::useBox()
{
  return cbEnableBox->isChecked();
}

int KatePrintLayout::boxWidth()
{
  return sbBoxWidth->value();
}

int KatePrintLayout::boxMargin()
{
  return sbBoxMargin->value();
}

QColor KatePrintLayout::boxColor()
{
  return kcbtnBoxColor->color();
}

void KatePrintLayout::readSettings()
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup printGroup(config, "Kate Print Settings");
  
  KConfigGroup layoutGroup(&printGroup, "Layout");

  // get color schema back
  QString colorScheme = layoutGroup.readEntry( "ColorScheme", "Printing" );
  int index = cmbSchema->findData (QVariant (colorScheme));
  if (index != -1)
    cmbSchema->setCurrentIndex ( index );

  bool isBackgroundChecked = layoutGroup.readEntry( "BackgroundColorEnabled", false );
  cbDrawBackground->setChecked( isBackgroundChecked );

  bool isBoxChecked = layoutGroup.readEntry( "BoxEnabled", false );
  cbEnableBox->setChecked( isBoxChecked );

  int boxWidth = layoutGroup.readEntry( "BoxWidth", 1 );
  sbBoxWidth->setValue( boxWidth );

  int boxMargin = layoutGroup.readEntry( "BoxMargin", 6 );
  sbBoxMargin->setValue( boxMargin );

  QColor boxColor = layoutGroup.readEntry( "BoxColor", QColor() );
  kcbtnBoxColor->setColor( boxColor );
}
    
void KatePrintLayout::writeSettings()
{
  KSharedConfigPtr config = KGlobal::config();
  KConfigGroup printGroup(config, "Kate Print Settings");
  
  KConfigGroup layoutGroup(&printGroup, "Layout");
  layoutGroup.writeEntry( "ColorScheme", colorScheme() );
  layoutGroup.writeEntry( "BackgroundColorEnabled", useBackground() );
  layoutGroup.writeEntry( "BoxEnabled", useBox() );
  layoutGroup.writeEntry( "BoxWidth", boxWidth() );
  layoutGroup.writeEntry( "BoxMargin", boxMargin() );
  layoutGroup.writeEntry( "BoxColor", boxColor() );
  
  config->sync();
}

//END KatePrintLayout

#include "moc_kateprinter.cpp"

// kate: space-indent on; indent-width 2; replace-tabs on;