ofontselector.cpp

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/*
               =.            This file is part of the OPIE Project
             .=l.            Copyright (c)  2002 Robert Griebl <sandman@handhelds.org>
           .>+-=
 _;:,     .>    :=|.         This library is free software; you can
.> <`_,   >  .   <=          redistribute it and/or  modify it under
:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
.="- .-=="i,     .._         License as published by the Free Software
 - .   .-<_>     .<>         Foundation; either version 2 of the License,
     ._= =}       :          or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s.       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., 59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#include <qlayout.h>
#include <qlistbox.h>
#include <qcombobox.h>
#include <qlabel.h>
#include <qmultilineedit.h>

#include <qpe/fontdatabase.h>

#include "ofontselector.h"

class OFontSelectorPrivate {
public:
        QListBox *      m_font_family_list;
        QComboBox *     m_font_style_list;
        QComboBox *     m_font_size_list;
        QMultiLineEdit *m_preview;

        bool            m_pointbug : 1;

        FontDatabase    m_fdb;
};

namespace {

class FontListItem : public QListBoxText {
public:
        FontListItem ( const QString &t, const QStringList &styles, const QValueList<int> &sizes ) : QListBoxText ( )
        {
                m_name = t;
                m_styles = styles;
                m_sizes = sizes;

                QString str = t;
                str [0] = str [0]. upper ( );
                setText ( str );
        }

        QString family ( ) const
        {
                return m_name;
        }

        const QStringList &styles ( ) const
        {
                return m_styles;
        }

        const QValueList<int> &sizes ( ) const
        {
                return m_sizes;
        }

private:
        QStringList m_styles;
        QValueList<int> m_sizes;
        QString m_name;
};


static int findItemCB ( QComboBox *box, const QString &str )
{
        for ( int i = 0; i < box-> count ( ); i++ ) {
                if ( box-> text ( i ) == str )
                        return i;
        }
        return -1;
}

}
/* static same as anon. namespace */
static int qt_version ( )
{
        const char *qver = qVersion ( );

        return ( qver [0] - '0' ) * 100 + ( qver [2] - '0' ) * 10 + ( qver [4] - '0' );
}

OFontSelector::OFontSelector ( bool withpreview, QWidget *parent, const char *name, WFlags fl ) : QWidget ( parent, name, fl )
{
        d = new OFontSelectorPrivate ( );

        QGridLayout *gridLayout = new QGridLayout ( this, 0, 0, 4, 4 );
        gridLayout->setRowStretch ( 4, 10 );

        d-> m_font_family_list = new QListBox( this, "FontListBox" );
        gridLayout->addMultiCellWidget( d-> m_font_family_list, 0, 4, 0, 0 );
        connect( d-> m_font_family_list, SIGNAL( highlighted(int) ), this, SLOT( fontFamilyClicked(int) ) );

        QLabel *label = new QLabel( tr( "Style" ), this );
        gridLayout->addWidget( label, 0, 1 );

        d-> m_font_style_list = new QComboBox( this, "StyleListBox" );
        connect( d-> m_font_style_list, SIGNAL(  activated(int) ), this, SLOT( fontStyleClicked(int) ) );
        gridLayout->addWidget( d-> m_font_style_list, 1, 1 );

        label = new QLabel( tr( "Size" ), this );
        gridLayout->addWidget( label, 2, 1 );

        d-> m_font_size_list = new QComboBox( this, "SizeListBox" );
        connect( d-> m_font_size_list, SIGNAL(  activated(int) ),
                         this, SLOT( fontSizeClicked(int) ) );
        gridLayout->addWidget( d-> m_font_size_list, 3, 1 );

        d-> m_pointbug = ( qt_version ( ) <= 233 );

        if ( withpreview ) {
                d-> m_preview = new QMultiLineEdit ( this, "Preview" );
                d-> m_preview-> setAlignment ( AlignCenter );
                d-> m_preview-> setWordWrap ( QMultiLineEdit::WidgetWidth );
                d-> m_preview-> setMargin ( 3 );
                d-> m_preview-> setText ( tr( "The Quick Brown Fox Jumps Over The Lazy Dog" ));
                gridLayout-> addRowSpacing ( 5, 4 );
                gridLayout-> addMultiCellWidget ( d-> m_preview, 6, 6, 0, 1 );
                gridLayout-> setRowStretch ( 6, 5 );
        }
        else
                d-> m_preview = 0;

        loadFonts ( d-> m_font_family_list );
}

OFontSelector::~OFontSelector ( )
{
        delete d;
}

bool OFontSelector::setSelectedFont ( const QFont &f )
{
        return setSelectedFont ( f. family ( ), d-> m_fdb. styleString ( f ), f. pointSize ( ), QFont::encodingName ( f. charSet ( )));
}


bool OFontSelector::setSelectedFont ( const QString &familyStr, const QString &styleStr, int sizeVal, const QString & charset )
{
        QString sizeStr = QString::number ( sizeVal );

        QListBoxItem *family = d-> m_font_family_list-> findItem ( familyStr );
        if ( !family )
                family = d-> m_font_family_list-> findItem ( "Helvetica" );
        if ( !family )
                family = d-> m_font_family_list-> firstItem ( );
         d-> m_font_family_list-> setCurrentItem ( family );
        fontFamilyClicked ( d-> m_font_family_list-> index ( family ));

        int style = findItemCB ( d-> m_font_style_list, styleStr );
        if ( style < 0 )
                style = findItemCB ( d-> m_font_style_list, "Regular" );
        if ( style < 0 && d-> m_font_style_list-> count ( ) > 0 )
                style = 0;
        d-> m_font_style_list-> setCurrentItem ( style );
        fontStyleClicked ( style );

        int size = findItemCB ( d-> m_font_size_list, sizeStr );
        if ( size < 0 )
                size = findItemCB ( d-> m_font_size_list, "10" );
        if ( size < 0 && d-> m_font_size_list-> count ( ) > 0 )
                size = 0;
        d-> m_font_size_list-> setCurrentItem ( size );
        fontSizeClicked ( size );

        return (( family ) && ( style >= 0 ) && ( size >= 0 ));
}

bool OFontSelector::selectedFont ( QString &family, QString &style, int &size )
{
        QString dummy;
        return selectedFont ( family, style, size, dummy );
}


QString OFontSelector::fontFamily ( ) const
{
        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( d-> m_font_family_list-> currentItem ( ));

        return fli ? fli-> family ( ) : QString::null;
}

QString OFontSelector::fontStyle ( ) const
{
        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( d-> m_font_family_list-> currentItem ( ));
        int fst = d-> m_font_style_list-> currentItem ( );

        return ( fli && fst >= 0 ) ? fli-> styles ( ) [fst] : QString::null;
}

int OFontSelector::fontSize ( ) const
{
        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( d-> m_font_family_list-> currentItem ( ));
        int fsi = d-> m_font_size_list-> currentItem ( );

        return ( fli && fsi >= 0 ) ? fli-> sizes ( ) [fsi] : 10;
}

QString OFontSelector::fontCharSet ( ) const
{
        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( d-> m_font_family_list-> currentItem ( ));

        return fli ? d-> m_fdb. charSets ( fli-> family ( )) [0] : QString::null;
}

bool OFontSelector::selectedFont ( QString &family, QString &style, int &size, QString &charset )
{
        int ffa = d-> m_font_family_list-> currentItem ( );
        int fst = d-> m_font_style_list-> currentItem ( );
        int fsi = d-> m_font_size_list-> currentItem ( );

        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( ffa );

        if ( fli ) {
                family = fli-> family ( );
                style = fst >= 0 ? fli-> styles ( ) [fst] : QString::null;
                size = fsi >= 0 ? fli-> sizes ( ) [fsi] : 10;
                charset = d-> m_fdb. charSets ( fli-> family ( )) [0];

                return true;
        }
        else
                return false;
}




void OFontSelector::loadFonts ( QListBox *list )
{
        QStringList f = d-> m_fdb. families ( );

        for ( QStringList::ConstIterator it = f. begin ( ); it != f. end ( ); ++it ) {
                QValueList <int> ps = d-> m_fdb. pointSizes ( *it );

                if ( d-> m_pointbug ) {
                        for ( QValueList <int>::Iterator it = ps. begin ( ); it != ps. end ( ); it++ )
                                *it /= 10;
                }

                list-> insertItem ( new FontListItem ( *it, d-> m_fdb. styles ( *it ), ps ));
        }
}

void OFontSelector::fontFamilyClicked ( int index )
{
        QString oldstyle = d-> m_font_style_list-> currentText ( );
        QString oldsize  = d-> m_font_size_list-> currentText ( );

        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( index );

        d-> m_font_style_list-> clear ( );
        d-> m_font_style_list-> insertStringList ( fli-> styles ( ));
        d-> m_font_style_list-> setEnabled ( !fli-> styles ( ). isEmpty ( ));

        int i;

        i = findItemCB ( d-> m_font_style_list, oldstyle );
        if ( i < 0 )
                i = findItemCB ( d-> m_font_style_list, "Regular" );
        if (( i < 0 ) && ( d-> m_font_style_list-> count ( ) > 0 ))
                i = 0;

        if ( i >= 0 ) {
                d-> m_font_style_list-> setCurrentItem ( i );
                fontStyleClicked ( i );
        }

        d-> m_font_size_list-> clear ( );
        QValueList<int> sl = fli-> sizes ( );

        for ( QValueList<int>::Iterator it = sl. begin ( ); it != sl. end ( ); ++it )
                d-> m_font_size_list-> insertItem ( QString::number ( *it ));

        i = findItemCB ( d-> m_font_size_list, oldsize );
        if ( i < 0 )
                i = findItemCB ( d-> m_font_size_list, "10" );
        if (( i < 0 ) && ( d-> m_font_size_list-> count ( ) > 0 ))
                i = 0;

        if ( i >= 0 ) {
                d-> m_font_size_list-> setCurrentItem ( i );
                fontSizeClicked ( i );
        }
        changeFont ( );
}

void OFontSelector::fontStyleClicked ( int /*index*/ )
{
        changeFont ( );
}

void OFontSelector::fontSizeClicked ( int /*index*/ )
{
        changeFont ( );
}

void OFontSelector::changeFont ( )
{
        QFont f = selectedFont ( );

        if ( d-> m_preview )
                d-> m_preview-> setFont ( f );

        emit fontSelected ( f );
}

QFont OFontSelector::selectedFont ( )
{
        int ffa = d-> m_font_family_list-> currentItem ( );
        int fst = d-> m_font_style_list-> currentItem ( );
        int fsi = d-> m_font_size_list-> currentItem ( );

        FontListItem *fli = (FontListItem *) d-> m_font_family_list-> item ( ffa );

        if ( fli ) {
                return d-> m_fdb. font ( fli-> family ( ), \
                                         fst >= 0 ? fli-> styles ( ) [fst] : QString::null, \
                                         fsi >= 0 ? fli-> sizes ( ) [fsi] : 10, \
                                         d-> m_fdb. charSets ( fli-> family ( )) [0] );
        }
        else
                return QFont ( );
}


void OFontSelector::resizeEvent ( QResizeEvent *re )
{
        if ( d-> m_preview ) {
                d-> m_preview-> setMinimumHeight ( 1 );
                d-> m_preview-> setMaximumHeight ( 32767 );
        }

        QWidget::resizeEvent ( re );

        if ( d-> m_preview )
                d-> m_preview-> setFixedHeight ( d-> m_preview-> height ( ));

}

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