#include "texteditor.h"

#include <qcanvas.h>

#include <qstatusbar.h>

#include <qmessagebox.h>

#include <qaction.h>

#include <qapplication.h>

#include <qpainter.h>

#include <qprinter.h>

#include <qfile.h>

#include <qfiledialog.h>

#include <qtoolbar.h>

#include <qpopupmenu.h>

#include <qmenubar.h>

#include <qtextedit.h>

#include <qaccel.h>

#include <qtextstream.h>

#include <qpaintdevicemetrics.h>

#include <qsettings.h>

#include <qfontdialog.h>

#include <qmessagebox.h>

#include <qcolordialog.h>

#include <qregexp.h>

#include <qlineedit.h>

#include <qsimplerichtext.h>

#include <iostream>

#include <stdlib.h>

#include <typeinfo>

#include "icons/fileopen.xpm"

#include "icons/filesave.xpm"

#include "icons/fileprint.xpm"

#include "icons/editundo.xpm"	

#include "icons/editredo.xpm"	

#include "icons/editcopy.xpm"

#include "icons/editcut.xpm"

#include "icons/editpaste.xpm"

#include "icons/edittrash.xpm"

#include "icons/formatfixedfont.xpm"

#include "icons/formattextbold.xpm"

#include "icons/formattextitalic.xpm"

#include "icons/formattextunder.xpm"

#include "icons/formattextleft.xpm"

#include "icons/formattextcenter.xpm"

#include "icons/formattextright.xpm"

#include "icons/formattextjustify.xpm"

extern QCanvas* actCanvas;

extern int statusbarTime;

extern QSettings settings;

using namespace std;

///////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////

TextEditor::TextEditor()

{

    printer = new QPrinter( QPrinter::HighResolution );

	// Editor

    e = new QTextEdit( this, "editor" );

    e->setFocus();

	e->setTextFormat(RichText);		// default

	e->setTabStopWidth (20);		// unit is pixel

	e->setColor (black);

	connect (e, SIGNAL( textChanged() ), this, SLOT( editorChanged() ) );

    setCentralWidget( e );

    statusBar()->message( "Ready", statusbarTime);

	setCaption("VYM - Note Editor");

	// Toolbars

	setupFileActions();

	setupEditActions();

	setupFormatActions();

	setupSettingsActions();

	// Various states

	emptyPaper   = QBrush(gray);

	filledPaper  = QBrush(white);

	inactivePaper= QBrush(black);

	setInactive();

	// Load Settings

	resize (settings.readNumEntry( "/vym/noteeditor/geometry/width", 450),

	        settings.readNumEntry( "/vym/noteeditor/geometry/height",600));

	move   (settings.readNumEntry( "/vym/noteeditor/geometry/posX", 150),

	        settings.readNumEntry( "/vym/noteeditor/geometry/posY",  50));

	if (settings.readEntry( "/vym/noteeditor/showWithMain","yes") =="yes")

		setShowWithMain(true);

	else	

		setShowWithMain(false);

	varFont.fromString( settings.readEntry 

		("/vym/noteeditor/fonts/varFont",

		"Nimbus Sans l,14,-1,5,48,0,0,0,0,0") 

	);

	fixedFont.fromString (settings.readEntry (

		"/vym/noteeditor/fonts/fixedFont",

		"Courier,14,-1,5,48,0,0,0,1,0") 

	);

	QString s=settings.readEntry ("/vym/noteeditor/fonts/fonthintDefault","variable");

	if (s == "fixed")

	{	

		actionSettingsFonthintDefault->setOn (true);

		e->setCurrentFont (fixedFont);

	} else	

	{

		actionSettingsFonthintDefault->setOn (false);

		e->setCurrentFont (varFont);

	}	

}

TextEditor::~TextEditor()

{

    if (printer) delete printer;

	// Save Settings

	settings.writeEntry( "/vym/noteeditor/geometry/width", width() );

	settings.writeEntry( "/vym/noteeditor/geometry/height", height() );

	settings.writeEntry( "/vym/noteeditor/geometry/posX", pos().x() );

	settings.writeEntry( "/vym/noteeditor/geometry/posY", pos().y() );

	if (showWithMain())

		settings.writeEntry( "/vym/noteeditor/showWithMain","yes");

	else	

		settings.writeEntry( "/vym/noteeditor/showWithMain","no");

	QString s;

	if (actionSettingsFonthintDefault->isOn() )

		s="fixed";

	else	

		s="variable";

	settings.writeEntry( "/vym/noteeditor/fonts/fonthintDefault",s );

	settings.writeEntry ("/vym/noteeditor/fonts/varFont",

		varFont.toString() );

	settings.writeEntry ("/vym/noteeditor/fonts/fixedFont",

		fixedFont.toString() );

}

bool TextEditor::isEmpty()

{

	if (e->text().length())

		return false;

	else

		return true;

}

void TextEditor::setShowWithMain(bool v)

{

	showwithmain=v;

}

bool TextEditor::showWithMain()

{

	return showwithmain;

}

void TextEditor::setFontHint (const QString &fh)

{

	if (fh=="fixed")

		actionFormatUseFixedFont->setOn (true);

	else

		actionFormatUseFixedFont->setOn (false);

}

QString TextEditor::getFontHint()

{

	if (actionFormatUseFixedFont->isOn())

		return "fixed";

	else	

		return "var";

}

QString TextEditor::getFontHintDefault()

{

	if (actionSettingsFonthintDefault->isOn())

		return "fixed";

	else	

		return "var";

}

void TextEditor::setFilename(const QString &fn)

{

	if (state==filledEditor)

		if (fn.isEmpty() )

		{

			filename="";

			statusBar()->message( "No filename available for this note.", statusbarTime );

		}	

		else

		{

			filename=fn;

			statusBar()->message( QString( "Current filename is %1" ).arg( filename ), statusbarTime );

		}	

}

QString TextEditor::getFilename()

{

	return filename;

}

bool TextEditor::findText(const QString &t, const bool &cs)

{

	bool wo=false;	// word matches

	if (e->find (t, cs, wo, true, 0, 0 ))

		return true;

	else	

		return false;

}

void TextEditor::setupFileActions()

{

    QToolBar *tb = new QToolBar( this );

    tb->setLabel( "File Actions" );

    QPopupMenu *menu = new QPopupMenu( this );

    menuBar()->insertItem( tr( "&File" ), menu );

    QAction *a;

    a = new QAction( tr( "Import" ), QPixmap( fileopen_xpm), tr( "&Import..." ), CTRL + Key_O, this, "fileImport" );

    connect( a, SIGNAL( activated() ), this, SLOT( textLoad() ) );

	a->setEnabled(false);

    a->addTo( tb );

    a->addTo( menu );

	actionFileLoad=a;

    menu->insertSeparator();

    a = new QAction( tr( "Export Note (HTML)" ), QPixmap( filesave_xpm ), tr( "&Export..." ), CTRL + Key_S, this, "fileSave" );

    connect( a, SIGNAL( activated() ), this, SLOT( textSave() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionFileSave=a;

    a = new QAction( tr( "Export Note As (HTML) " ), QPixmap(), tr( "Export &As... (HTML)" ), 0, this, "exportHTML" );

    connect( a, SIGNAL( activated() ), this, SLOT( textSaveAs() ) );

    a->addTo( menu );

	actionFileSaveAs=a;

    a = new QAction( tr( "Export Note As (ASCII) " ), QPixmap(), tr( "Export &As...(ASCII)" ), ALT + Key_X, this, "exportASCII" );

    connect( a, SIGNAL( activated() ), this, SLOT( textExportAsASCII() ) );

    a->addTo( menu );

	actionFileSaveAs=a;

    menu->insertSeparator();

    a = new QAction( tr( "Print Note" ), QPixmap( fileprint_xpm ), tr( "&Print..." ), CTRL + Key_P, this, "filePrint" );

    connect( a, SIGNAL( activated() ), this, SLOT( textPrint() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionFilePrint=a;

}

void TextEditor::setupEditActions()

{

    QToolBar *tb = new QToolBar( this );

    tb->setLabel( "Edit Actions" );

    QPopupMenu *menu = new QPopupMenu( this );

    menuBar()->insertItem( tr( "&Edit" ), menu );

    QAction *a;

    a = new QAction( tr( "Undo" ), QPixmap(editundo_xpm), tr( "&Undo" ), CTRL + Key_Z, this, "undoEvent" );

    connect( a, SIGNAL( activated() ), e, SLOT( undo() ) );

    a->addTo( menu );

    a->addTo( tb);

	actionEditUndo=a;

    a = new QAction( tr( "Redo" ), QPixmap( editredo_xpm ), tr( "&Redo" ), CTRL + Key_Y, this, "editRedo" ); 

    connect( a, SIGNAL( activated() ), e, SLOT( redo() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionEditRedo=a;

    menu->insertSeparator();

    a = new QAction( tr( "Select and copy all" ), QPixmap(), tr( "Select and copy &all" ), CTRL + Key_A, this, "editcopyall" ); 

    connect( a, SIGNAL( activated() ), this, SLOT( editCopyAll() ) );

    a->addTo( menu );

    menu->insertSeparator();

    a = new QAction( tr( "Copy" ), QPixmap( editcopy_xpm ), tr( "&Copy" ), CTRL + Key_C, this, "editCopy" );

    connect( a, SIGNAL( activated() ), e, SLOT( copy() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionEditCopy=a;

    a = new QAction( tr( "Cut" ), QPixmap( editcut_xpm ), tr( "Cu&t" ), CTRL + Key_X, this, "editCut" );

    connect( a, SIGNAL( activated() ), e, SLOT( cut() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionEditCut=a;

    a = new QAction( tr( "Paste" ), QPixmap( editpaste_xpm ), tr( "&Paste" ), CTRL + Key_V, this, "editPaste" );

    connect( a, SIGNAL( activated() ), e, SLOT( paste() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionEditPaste=a;

    a = new QAction( tr( "Delete all" ), QPixmap( edittrash_xpm ), tr( "&Delete All" ), 0, this, "editDeleteAll" );

    connect( a, SIGNAL( activated() ), e, SLOT( clear() ) );

    a->addTo( tb );

    a->addTo( menu );

	actionEditDeleteAll=a;

	a = new QAction( tr( "Convert paragraphs to linebreaks" ), QPixmap(), tr( "&Convert Paragraphs" ), ALT + Key_P, this, "editConvertPar" );

    connect( a, SIGNAL( activated() ), this, SLOT( textConvertPar() ) );

    a->addTo( menu );

	actionEditConvertPar=a;

	a = new QAction( tr( "Join all lines of a paragraph" ), QPixmap(), tr( "&Join lines" ), ALT + Key_J, this, "editJoinLines" );

    connect( a, SIGNAL( activated() ), this, SLOT( textJoinLines() ) );

    a->addTo( menu );

	actionEditJoinLines=a;

}

void TextEditor::setupFormatActions()

{

    QToolBar *tb = new QToolBar( this );

    tb->setLabel( "Format Actions" );

    QPopupMenu *menu = new QPopupMenu( this );

    menuBar()->insertItem( tr( "&Format" ), menu );

    QAction *a;

    a = new QAction( tr( "Toggle font hint for the whole text" ), QPixmap(formatfixedfont_xpm), tr( "&Font hint" ), ALT + Key_I, this, "fontHint" );

	a->setToggleAction (true);

	a->setOn (settings.readBoolEntry ("/vym/noteeditor/fonts/useFixedByDefault",false) );

    connect( a, SIGNAL( activated() ), this, SLOT( toggleFonthint() ) );

    a->addTo( menu );

    a->addTo( tb );

	actionFormatUseFixedFont=a;

	menu->insertSeparator();

    comboFont = new QComboBox( true, tb );

    QFontDatabase db;

    comboFont->insertStringList( db.families() );

    connect( comboFont, SIGNAL( activated( const QString & ) ),

	     this, SLOT( textFamily( const QString & ) ) );

    comboFont->lineEdit()->setText( QApplication::font().family() );

    comboSize = new QComboBox( true, tb );

    QValueList<int> sizes = db.standardSizes();

    QValueList<int>::Iterator it = sizes.begin();

    for ( ; it != sizes.end(); ++it )

	comboSize->insertItem( QString::number( *it ) );

    connect( comboSize, SIGNAL( activated( const QString & ) ),

	     this, SLOT( textSize( const QString & ) ) );

    comboSize->lineEdit()->setText( QString::number( QApplication::font().pointSize() ) );

    menu->insertSeparator();

    QPixmap pix( 16, 16 );

    pix.fill( e->color());

    actionTextColor = new QAction( pix, tr( "&Color..." ), 0, this, "textColor" );

    connect( actionTextColor, SIGNAL( activated() ), this, SLOT( textColor() ) );

    actionTextColor->addTo( tb );

    actionTextColor->addTo( menu );

    actionTextBold = new QAction( QPixmap (formattextbold_xpm), tr( "&Bold" ), CTRL + Key_B, this, "textBold" );

    connect( actionTextBold, SIGNAL( activated() ), this, SLOT( textBold() ) );

    actionTextBold->addTo( tb );

    actionTextBold->addTo( menu );

    actionTextBold->setToggleAction( true );

    actionTextItalic = new QAction( QPixmap(formattextitalic_xpm ), tr( "&Italic" ), CTRL + Key_I, this, "textItalic" );

    connect( actionTextItalic, SIGNAL( activated() ), this, SLOT( textItalic() ) );

    actionTextItalic->addTo( tb );

    actionTextItalic->addTo( menu );

    actionTextItalic->setToggleAction( true );

    actionTextUnderline = new QAction( QPixmap (formattextunder_xpm ), tr( "&Underline" ), CTRL + Key_U, this, "textUnderline" );

    connect( actionTextUnderline, SIGNAL( activated() ), this, SLOT( textUnderline() ) );

    actionTextUnderline->addTo( tb );

    actionTextUnderline->addTo( menu );

    actionTextUnderline->setToggleAction( true );

    menu->insertSeparator();

    QActionGroup *grp = new QActionGroup( this );

    connect( grp, SIGNAL( selected( QAction* ) ), this, SLOT( textAlign( QAction* ) ) );

    actionAlignLeft = new QAction( QPixmap (formattextleft_xpm ), tr( "&Left" ), CTRL + Key_L, grp, "textLeft" );

    actionAlignLeft->setToggleAction( true );

    actionAlignCenter = new QAction( QPixmap (formattextcenter_xpm ), tr( "C&enter" ), CTRL + Key_E, grp, "textCenter" );

    actionAlignCenter->setToggleAction( true );

    actionAlignRight = new QAction( QPixmap (formattextright_xpm ), tr( "&Right" ), CTRL + Key_R, grp, "textRight" );

    actionAlignRight->setToggleAction( true );

    actionAlignJustify = new QAction( QPixmap ( formattextjustify_xpm ), tr( "&Justify" ), CTRL + Key_J, grp, "textjustify" );

    actionAlignJustify->setToggleAction( true );

    grp->addTo( tb );

    grp->addTo( menu );

    connect( e, SIGNAL( currentFontChanged( const QFont & ) ),

	     this, SLOT( fontChanged( const QFont & ) ) );

    connect( e, SIGNAL( currentColorChanged( const QColor & ) ),

	     this, SLOT( colorChanged( const QColor & ) ) );

    connect( e, SIGNAL( currentAlignmentChanged( int ) ),

	     this, SLOT( alignmentChanged( int ) ) );

}

void TextEditor::setupSettingsActions()

{

    QPopupMenu *menu = new QPopupMenu( this );

    menuBar()->insertItem( tr( "&Settings" ), menu );

    QAction *a;

    a = new QAction( tr( "Set fixed font" ), QPixmap(), tr( "Set &fixed font" ), 0, this, "setFixedFont" );

    connect( a, SIGNAL( activated() ), this, SLOT( setFixedFont() ) );

    a->addTo( menu );

	actionSettingsFixedFont=a;

    a = new QAction( tr( "Set variable font" ), QPixmap(), tr( "Set &variable font" ), 0, this, "setvariableFont" );

    connect( a, SIGNAL( activated() ), this, SLOT( setVarFont() ) );

    a->addTo( menu );

	actionSettingsVarFont=a;

    a = new QAction( tr( "Used fixed font by default" ), QPixmap(), tr( "&fixed font is default" ), 0, this, "fonthintDefault" );

	a->setToggleAction (true);

	// set state later in constructor...

    a->addTo( menu );

	actionSettingsFonthintDefault=a;

}

void TextEditor::textLoad()

{

	if (state!=inactiveEditor)

	{

		if (e->length()) 

		{

			QMessageBox mb( "VYM - Note Editor",

				"Loading will overwrite the existing note",

				QMessageBox::Warning,

				QMessageBox::Yes | QMessageBox::Default,

				QMessageBox::Cancel,

				0 );

			mb.setButtonText( QMessageBox::Yes, "Load note" );

			switch( mb.exec() ) {

				case QMessageBox::Cancel:

					return;

					break;

			}

		} 

		// Load note

		QFileDialog *fd=new QFileDialog( this);

		fd->addFilter ("ASCII texts (*.txt)");

		fd->addFilter ("VYM notes (*.html)");

		fd->show();

		QString fn;

		if ( fd->exec() == QDialog::Accepted )

			fn = fd->selectedFile();

		if ( !fn.isEmpty() )

		{

			QFile f( fn );

			if ( !f.open( IO_ReadOnly ) )

			return;

			QTextStream ts( &f );

			setText( ts.read() );

			editorChanged();

		}

	}

}

void TextEditor::closeEvent( QCloseEvent* ce )

{

    if ( !e->isModified() ) 

	{

		ce->accept();	// TextEditor can be reopened with show()

		return;

    }

}

QString TextEditor::getText()

{

	return e->text();

}

void TextEditor::editorChanged()

{

	// received, when QTextEdit::text() has changed

	EditorState	oldstate=state;

	if (isEmpty())

		state=emptyEditor;

	else

		state=filledEditor;

	if (state != oldstate)

	{

		if (state==emptyEditor)

			e->setPaper (emptyPaper);

		else

			e->setPaper (filledPaper);

	}

	// SLOT is LinkableMapObj, which will update systemFlag

	emit (textHasChanged() );

}

void TextEditor::setText(QString t)

{

	if ( !QStyleSheet::mightBeRichText( t ) )

		t = QStyleSheet::convertFromPlainText( t, QStyleSheetItem::WhiteSpaceNormal );

	e->setReadOnly(false);

	e->setText(t);

	editorChanged();	//not called automagically

	enableActions();

}

void TextEditor::setInactive()

{

	setText("");

	state=inactiveEditor;

	e->setPaper (inactivePaper);

	e->setReadOnly (true);

	disableActions();

}

void TextEditor::editCopyAll()

{

	e->selectAll();

	e->copy();

}

void TextEditor::textSaveAs()

{

    QString fn = QFileDialog::getSaveFileName( QString::null, "VYM Note (HTML) (*.html);;All files (*)",

					       this,"export note dialog",tr("Export Note to single file") );

    if ( !fn.isEmpty() ) 

	{

		QFile file (fn);

		if (file.exists())

		{

			QMessageBox mb( "VYM",

				tr("The file ") + fn + 

				tr(" exists already. "

				"Do you want to overwrite it?"),

			QMessageBox::Warning,

			QMessageBox::Yes | QMessageBox::Default,

			QMessageBox::Cancel | QMessageBox::Escape,

			QMessageBox::NoButton );

			mb.setButtonText( QMessageBox::Yes, tr("Overwrite") );

			mb.setButtonText( QMessageBox::No, tr("Cancel"));

			switch( mb.exec() ) {

				case QMessageBox::Yes:

					// save 

					filename = fn;

					textSave();

					return;

				case QMessageBox::Cancel:

					// do nothing

					break;

			}

		} else

		{

			filename = fn;

			textSave();

			return;

		}			

    }

	statusBar()->message(tr( "Couldn't export note ") + fn, statusbarTime );

}

void TextEditor::textSave()

{

    if ( filename.isEmpty() ) 

	{

		textSaveAs();

		return;

    }

    QString text = e->text();

    QFile f( filename );

    if ( !f.open( IO_WriteOnly ) ) 

	{

		statusBar()->message( QString("Could not write to %1").arg(filename),

					  statusbarTime );

		return;

    }

    QTextStream t( &f );

    t << text;

    f.close();

    e->setModified( FALSE );

    statusBar()->message( QString( "Note exported as %1" ).arg( filename ), statusbarTime );

}

void TextEditor::textConvertPar()

{

	// In X11 a copy&paste generates paragraphs, 

	// which is not always wanted

	// This function replaces paragraphs by linebreaks.

	int parFrom, parTo, indFrom, indTo;

	e->getSelection (&parFrom,&indFrom,&parTo,&indTo);

	QString t;

	if (parFrom>-1)

		t=e->selectedText();

	else

		t=e->text();

	QRegExp re("<p.*>");

	re.setMinimal(true);

	t.replace (re,"");

	t.replace ("</p>","<br />");

	if (parFrom>-1)

	{

		e->setCursorPosition (parFrom,indFrom);

		e->cut();

		// Tried to simply insert the changed text with

		// e->insert (t,(uint)(QTextEdit::RemoveSelected));

		// but then the html would be quoted. So I use the ugly

		// way: insert a marker, replace it in whole text of QTextEdit

		QString marker="R3PlAcEMeL4teR!";

		e->insert (marker);

		e->setText (e->text().replace(marker,t));

	} else

		e->setText(t);

}

void TextEditor::textJoinLines()

{

	int parFrom, parTo, indFrom, indTo;

	e->getSelection (&parFrom,&indFrom,&parTo,&indTo);

	QString t;

	if (parFrom>-1)

		t=e->selectedText();

	else

		t=e->text();

	// In addition to textConvertPar it is sometimes

	// useful to join all lines of a paragraph

	QRegExp re("</p>\n+<p>(?!</p>)");

	re.setMinimal(true);

	t.replace (re," ");

	// Above we may have introduced new " " at beginning of a

	// paragraph - remove it.

	re.setPattern("<p> ");

	t.replace (re,"<p>");

	if (parFrom>-1)

	{

		e->setCursorPosition (parFrom,indFrom);

		e->cut();

		// Tried to simply insert the changed text with

		// e->insert (t,(uint)(QTextEdit::RemoveSelected));

		// but then the html would be quoted. So I use the ugly

		// way: insert a marker, replace it in whole text of QTextEdit

		QString marker="R3PlAcEMeL4teR!";

		e->insert (marker);

		e->setText (e->text().replace(marker,t));

	} else

		e->setText(t);

}

QString TextEditor::textConvertToASCII(const QString &t)

{

	QString r=t;

	// convert all "<br*>" to "\n"

	QRegExp re("<br.*>");

	re.setMinimal(true);

	r.replace (re,"\n");

	// convert all "</p>" to "\n"

	re.setPattern ("/p");

	r.replace (re,"\n");

	// remove all remaining tags 

	re.setPattern ("<.*>");

	r.replace (re,"");

	// convert "&", "<" and ">"

	re.setPattern (">");

	r.replace (re,">");

	re.setPattern ("<");

	r.replace (re,"<");

	re.setPattern ("&");

	r.replace (re,"&");

	return r;

}

void TextEditor::textExportAsASCII()

{

	QString text = textConvertToASCII( e->text());

    QString fn = QFileDialog::getSaveFileName( QString::null, "VYM Note (ASCII) (*.txt);;All files (*)",

					       this,"export note dialog",tr("Export Note to single file (ASCII)") );

	int ret=-1;

    if ( !fn.isEmpty() ) 

	{

		QFile file (fn);

		if (file.exists())

		{

			QMessageBox mb( "VYM",

				tr("The file ") + fn + 

				tr(" exists already. "

				"Do you want to overwrite it?"),

			QMessageBox::Warning,

			QMessageBox::Yes | QMessageBox::Default,

			QMessageBox::Cancel | QMessageBox::Escape,

			QMessageBox::NoButton );

			mb.setButtonText( QMessageBox::Yes, tr("Overwrite") );

			mb.setButtonText( QMessageBox::No, tr("Cancel"));

			ret=mb.exec();

		}	

		if (ret==QMessageBox::Cancel)

			return;

		// save 

		if ( !file.open( IO_WriteOnly ) ) 

			statusBar()->message( QString("Could not write to %1").arg(filename),

						  statusbarTime );

		else

		{

			QTextStream t( &file );

			t << text;

			file.close();

			statusBar()->message( QString( "Note exported as %1" ).arg( fn ), statusbarTime );

		}

    }

}

void TextEditor::textPrint()

{

    printer->setFullPage(TRUE);

    if ( printer->setup( this ) ) 

	{

		QPainter p( printer );

		// Check that there is a valid device to print to.

		if ( !p.device() ) return;

		QPaintDeviceMetrics metrics( p.device() );

		int dpiy = metrics.logicalDpiY();

		int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins

		QRect body( margin, margin, metrics.width() - 2*margin, metrics.height() - 2*margin );

		QFont font( e->currentFont() );

		font.setPointSize( 10 ); // we define 10pt to be a nice base size for printing

		QSimpleRichText richText( e->text(), font,

					  e->context(),

					  e->styleSheet(),

					  e->mimeSourceFactory(),

					  body.height() );

		richText.setWidth( &p, body.width() );

		QRect view( body );

		int page = 1;

		do 

		{

			richText.draw( &p, body.left(), body.top(), view, colorGroup() );

			view.moveBy( 0, body.height() );

			p.translate( 0 , -body.height() );

			p.setFont( font );

			p.drawText( view.right() - p.fontMetrics().width( QString::number( page ) ),

				view.bottom() + p.fontMetrics().ascent() + 5, QString::number( page ) );

			if ( view.top()  >= richText.height() )

			break;

			printer->newPage();

			page++;

		} while (TRUE);

    }

}

void TextEditor::textEditUndo()

{

}

void TextEditor::toggleFonthint()

{

	setUpdatesEnabled (false);

	e->selectAll (true);

	if (!actionFormatUseFixedFont->isOn() ) 

		e->setCurrentFont (varFont);

	else	

		e->setCurrentFont (fixedFont);

	e->selectAll (false);

	setUpdatesEnabled (true);

	repaint();

}

void TextEditor::setFixedFont()

{

	bool ok;

	QFont font =QFontDialog::getFont(

                    &ok, fixedFont, this );

    if ( ok ) 

        // font is set to the font the user selected

		fixedFont=font;

}

void TextEditor::setVarFont()

{

	bool ok;

	QFont font =QFontDialog::getFont(

                    &ok, varFont, this );

    if ( ok ) 

        // font is set to the font the user selected

		varFont=font;

}

void TextEditor::textBold()

{

    e->setBold( actionTextBold->isOn() );

}

void TextEditor::textUnderline()

{

    e->setUnderline( actionTextUnderline->isOn() );

}

void TextEditor::textItalic()

{

    e->setItalic( actionTextItalic->isOn() );

}

void TextEditor::textFamily( const QString &f )

{

    e->setFamily( f );

}

void TextEditor::textSize( const QString &p )

{

    e->setPointSize( p.toInt() );

}

void TextEditor::textColor()

{

    QColor col = QColorDialog::getColor( e->color(), this );

    if ( !col.isValid() )

	return;

    e->setColor( col );

    QPixmap pix( 16, 16 );

    pix.fill( black );

    actionTextColor->setIconSet( pix );

}

void TextEditor::textAlign( QAction *a )

{

    if ( a == actionAlignLeft )

	e->setAlignment( AlignLeft );

    else if ( a == actionAlignCenter )

	e->setAlignment( AlignHCenter );

    else if ( a == actionAlignRight )

	e->setAlignment( AlignRight );

    else if ( a == actionAlignJustify )

	e->setAlignment( AlignJustify );

}

void TextEditor::fontChanged( const QFont &f )

{

    comboFont->lineEdit()->setText( f.family() );

    comboSize->lineEdit()->setText( QString::number( f.pointSize() ) );

    actionTextBold->setOn( f.bold() );

    actionTextItalic->setOn( f.italic() );

    actionTextUnderline->setOn( f.underline() );

}

void TextEditor::colorChanged( const QColor &c )

{

    QPixmap pix( 16, 16 );

    pix.fill( c );

    actionTextColor->setIconSet( pix );

}

void TextEditor::alignmentChanged( int a )

{

    if ( ( a == AlignAuto ) || ( a & AlignLeft ))

	actionAlignLeft->setOn( true );

    else if ( ( a & AlignHCenter ) )

	actionAlignCenter->setOn( true );

    else if ( ( a & AlignRight ) )

	actionAlignRight->setOn( true );

    else if ( ( a & AlignJustify ) )

	actionAlignJustify->setOn( true );

}

void TextEditor::enableActions()

{

	actionFileLoad->setEnabled(true);

	actionFileSave->setEnabled(true);

	actionFileSaveAs->setEnabled(true);

	actionFilePrint->setEnabled(true);

	actionEditUndo->setEnabled(true);

	actionEditRedo->setEnabled(true);

	actionEditCopy->setEnabled(true);

	actionEditCut->setEnabled(true);

	actionEditPaste->setEnabled(true);

	actionEditDeleteAll->setEnabled(true);

	actionEditConvertPar->setEnabled(true);

	actionEditJoinLines->setEnabled(true);

	actionFormatUseFixedFont->setEnabled(true);

}

void TextEditor::disableActions()

{

	actionFileLoad->setEnabled(false);

	actionFileSave->setEnabled(false);

	actionFileSaveAs->setEnabled(false);

	actionFilePrint->setEnabled(false);

	actionEditUndo->setEnabled(false);

	actionEditRedo->setEnabled(false);

	actionEditCopy->setEnabled(false);

	actionEditCut->setEnabled(false);

	actionEditPaste->setEnabled(false);

	actionEditDeleteAll->setEnabled(false);

	actionEditConvertPar->setEnabled(false);

	actionEditJoinLines->setEnabled(false);

	actionFormatUseFixedFont->setEnabled(false);

}