tabdialog.cpp

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/*
       =.            This file is part of the OPIE Project
      .=l.            Copyright (c)  2002 Robert Griebl <sandman@handhelds.org>
     .>+-=
_;:,   .>  :=|.         This file is free software; you can
.> <`_,  > .  <=          redistribute it and/or modify it under
:`=1 )Y*s>-.--  :           the terms of the GNU 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 file 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 General
..}^=.=    =    ;      Public License for more details.
++=  -.   .`   .:
:   = ...= . :.=-        You should have received a copy of the GNU
-.  .:....=;==+<;          General Public License along with this file;
 -_. . .  )=. =           see the file COPYING. If not, write to the
  --    :-=`           Free Software Foundation, Inc.,
                             59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#include "tabdialog.h"

/* OPIE */

#include <opie2/ocolorbutton.h>
#include <opie2/odebug.h>
#include <opie2/ofiledialog.h>
#include <opie2/ofontselector.h>
#include <opie2/oresource.h>
#include <opie2/otabwidget.h>

/* QPE */
#include <qpe/qpeapplication.h>

/* QT */
#include <qlayout.h>
#include <qvbox.h>
#include <qtabbar.h>
#include <qiconview.h>
#include <qapplication.h>
#include <qlabel.h>
#include <qfileinfo.h>
#include <qradiobutton.h>
#include <qbuttongroup.h>
#include <qwhatsthis.h>
#include <qcheckbox.h>
#include <qspinbox.h>


using namespace Opie::Ui;
class SampleItem : public QIconViewItem {
public:
    SampleItem ( QIconView *v, const QString &text, const QPixmap &pix ) : QIconViewItem ( v, text )
    {
        m_large = pix;
        m_small. convertFromImage ( pix. convertToImage ( ). smoothScale ( pix. width ( ) / 2, pix. height ( ) / 2 ));
    }

    void sizeChange ( )
    {
        calcRect ( );
        repaint ( );
    }

    QPixmap *pixmap ( ) const
    {
        if ( iconView ( )-> itemTextPos ( ) == QIconView::Right )
            return (QPixmap *) &m_small;
        else
            return (QPixmap *) &m_large;
    }

private:
    QPixmap m_large, m_small;
};

//FIXME: Why not derive SampleView from LauncherView ???

class SampleView : public QIconView {
public:
    SampleView ( QWidget *parent = 0, const char *name = 0 ) : QIconView ( parent, name )
    {
        setItemsMovable ( false );
        setAutoArrange ( true );
        setSorting ( true );
        setFrameStyle ( QFrame::NoFrame );
        setSpacing ( 4 );
        setMargin ( 0 );
        setSelectionMode ( QIconView::NoSelection );
        setBackgroundMode ( PaletteBase );
        setViewMode ( TabConfig::Icon );
        calculateGrid ( Bottom );


        new SampleItem ( this, QObject::tr( "Sample 1" ),
                         Opie::Core::OResource::loadPixmap ( "datebook/DateBook", Opie::Core::OResource::BigIcon ));
        new SampleItem ( this, QObject::tr( "Sample 2" ),
                         Opie::Core::OResource::loadPixmap ( "Calibrate", Opie::Core::OResource::BigIcon ));
        new SampleItem ( this, QObject::tr( "Sample 3" ),
                         Opie::Core::OResource::loadPixmap ( "UnknownDocument", Opie::Core::OResource::BigIcon ));

        setBackgroundType ( TabConfig::Ruled, QString::null );

        setMaximumHeight ( firstItem ( )-> height ( ) + 16 );
    }

    void setViewMode ( TabConfig::ViewMode m )
    {
        viewport ( )-> setUpdatesEnabled ( false );

        switch ( m ) {
            case TabConfig::List:
                setItemTextPos( QIconView::Right );
                break;
            case TabConfig::Icon:
                setItemTextPos( QIconView::Bottom );
                break;
        }
//      hideOrShowItems ( false );

        for ( QIconViewItem *it = firstItem ( ); it; it = it-> nextItem ( ))
            ((SampleItem *) it )-> sizeChange ( );
        arrangeItemsInGrid ( true );
        viewport ( )-> setUpdatesEnabled ( true );
        update ( );
    }


    void setBackgroundType( TabConfig::BackgroundType t, const QString &val )
    {
        switch ( t ) {
            case TabConfig::Ruled: {
                QPixmap bg ( width ( ), 9 );
                QPainter painter ( &bg );
                for ( int i = 0; i < 3; i++ ) {
                    painter. setPen ( white );
                    painter. drawLine ( 0, i*3, width()-1, i*3 );
                    painter. drawLine ( 0, i*3+1, width()-1, i*3+1 );
                    painter. setPen ( colorGroup().background().light(105) );
                    painter. drawLine ( 0, i*3+2, width()-1, i*3+2 );
                }
                painter.end ( );
                setBackgroundPixmap ( bg );
                break;
            }

            case TabConfig::SolidColor: {
                setBackgroundPixmap ( QPixmap ( ));
                if ( val. isEmpty ( ))
                    setBackgroundColor ( colorGroup ( ). base ( ));
                else
                    setBackgroundColor ( val );
                break;
            }

            case TabConfig::Image: {
                odebug << "Loading image: " << val << "" << oendl;
                QPixmap bg = Opie::Core::OResource::loadPixmap ( val );
                if ( bg. isNull () )
                    bg = QPixmap( val );
                setBackgroundPixmap ( bg );
                break;
            }
        }
        m_bgtype = t;
        viewport ( )-> update ( );
    }

    void setTextColor ( const QColor &tc )
    {
        m_textcolor = tc;
        QColorGroup cg = colorGroup ( );
        cg. setColor ( QColorGroup::Text, tc );
        setPalette ( QPalette ( cg, cg, cg ));
        viewport ( )-> update ( );
    }

    void setViewFont ( const QFont &f )
    {
        setFont ( f );
    }

    void setItemTextPos ( ItemTextPos pos )
    {
        calculateGrid ( pos );
        QIconView::setItemTextPos( pos );
    }

    //FIXME: Add per-tab column handling from launcherview.cpp
    void calculateGrid ( ItemTextPos pos )
    {
        int dw = QApplication::desktop ( )-> width ( );
        int viewerWidth = dw - style ( ).scrollBarExtent ( ). width ( );
        if ( pos == Bottom ) {
            int cols = 3;
            if ( viewerWidth <= 200 )
                cols = 2;
            else if ( viewerWidth >= 400 )
                cols = viewerWidth/96;
            setSpacing ( 4 );
            setGridX (( viewerWidth - ( cols + 1 ) * spacing ( )) / cols );
            setGridY ( fontMetrics ( ). height ( ) * 2 + 24 );
        }
        else {
            int cols = 2;
            if ( viewerWidth < 150 )
                cols = 1;
            else if ( viewerWidth >= 400 )
                cols = viewerWidth / 150;
            setSpacing ( 2 );
            setGridX (( viewerWidth - ( cols + 1 ) * spacing ( )) / cols );
            setGridY ( fontMetrics ( ). height ( ) + 2 );
        }
    }

    void paletteChange( const QPalette &p )
    {
        static bool excllock = false;

        if ( excllock )
            return;
        excllock = true;

        unsetPalette ( );
        QIconView::paletteChange ( p );
        if ( m_bgtype == TabConfig::Ruled )
            setBackgroundType ( TabConfig::Ruled, QString::null );
        QColorGroup cg = colorGroup ( );
        cg.setColor ( QColorGroup::Text, m_textcolor );
        setPalette ( QPalette ( cg, cg, cg ));

        excllock = false;
    }

    void setBackgroundPixmap ( const QPixmap &pm )
    {
        m_bgpix = pm;
    }

    void setBackgroundColor ( const QColor &c )
    {
        m_bgcolor = c;
    }

    void drawBackground ( QPainter *p, const QRect &r )
    {
        if ( !m_bgpix. isNull ( )) {
            p-> drawTiledPixmap ( r, m_bgpix, QPoint (( r. x ( ) + contentsX ( )) % m_bgpix. width ( ),
                                                      ( r. y ( ) + contentsY ( )) % m_bgpix. height ( )));
        }
        else
            p-> fillRect ( r, m_bgcolor );
    }

private:
    QColor m_textcolor;
    QColor m_bgcolor;
    QPixmap m_bgpix;
    TabConfig::BackgroundType m_bgtype;
};



TabDialog::TabDialog ( const QPixmap *tabicon, const QString &tabname, TabConfig &tc, QWidget *parent, const char *dname, bool modal, WFlags fl )
    : QDialog ( parent, dname, modal, fl | WStyle_ContextHelp ), m_tc ( tc )
{
    setCaption ( tr( "Edit Tab" ));

    QVBoxLayout *lay = new QVBoxLayout ( this, 3, 3 );

    OTabWidget *tw = new OTabWidget ( this, "tabwidget", OTabWidget::Global, OTabWidget::Bottom );
    QWidget *bgtab;

    tw-> addTab ( bgtab = createBgTab ( tw ), "appearance/color", tr( "Background" ));
    tw-> addTab ( createFontTab ( tw ), "font", tr( "Font" ));
    tw-> addTab ( createIconTab ( tw ), "pixmap", tr( "Icons" ) );

    tw-> setCurrentTab ( bgtab );

    QWidget *sample = new QVBox ( this );
    QTabBar *tb = new QTabBar ( sample );
    QString name ( tr( "Previewing %1" ). arg ( tabname ));

    tb-> addTab ( tabicon ? new QTab ( *tabicon, name ) : new QTab ( name ));

    m_sample = new SampleView ( sample );

    lay-> addWidget ( tw, 10 );
    lay-> addWidget ( sample, 1 );

    m_bgimage = tc. m_bg_image;
    m_bgtype-> setButton ( tc. m_bg_type );
    bgTypeClicked( tc.m_bg_type );

    m_fontuse-> setChecked ( tc. m_font_use );
    m_fontselect-> setSelectedFont ( QFont ( tc. m_font_family, tc. m_font_size, tc. m_font_weight, tc. m_font_italic ));
    m_fontselect-> setEnabled ( m_fontuse-> isChecked ( ));
    fontClicked ( m_fontselect-> selectedFont ( ));

    m_iconsize-> setButton ( tc. m_view );
    iconSizeClicked ( tc. m_view );
    iconColorClicked ( m_iconcolor-> color ( ));
    m_iconcolumns->setValue( tc. m_iconcolumns );

    QWhatsThis::add ( sample, tr( "This is a rough preview of what the currently selected Tab will look like." ));
}


TabDialog::~TabDialog ( )
{
}

QWidget *TabDialog::createFontTab ( QWidget *parent )
{
    QWidget *tab = new QWidget ( parent, "FontTab" );
    QVBoxLayout *vertLayout = new QVBoxLayout ( tab, 3, 3 );

    m_fontuse = new QCheckBox ( tr( "Use a custom font" ), tab );
    vertLayout-> addWidget ( m_fontuse );

    m_fontselect = new OFontSelector ( false, tab, "fontsel" );
    vertLayout-> addWidget ( m_fontselect );

    connect ( m_fontuse, SIGNAL( toggled(bool)), m_fontselect, SLOT( setEnabled(bool)));
    connect( m_fontselect, SIGNAL( fontSelected(const QFont&)),
             this, SLOT( fontClicked(const QFont&)));

    return tab;
}

QWidget *TabDialog::createBgTab ( QWidget *parent )
{
    QWidget *tab = new QWidget( parent, "BgTab" );
    QVBoxLayout *vertLayout = new QVBoxLayout( tab, 3, 3 );

    QGridLayout* gridLayout = new QGridLayout ( vertLayout );
    gridLayout-> setColStretch ( 1, 10 );

    QLabel* label = new QLabel( tr( "Type:" ), tab );
    gridLayout-> addWidget ( label, 0, 0 );
    m_bgtype = new QButtonGroup( tab, "buttongroup" );
    m_bgtype-> hide ( );
    m_bgtype-> setExclusive ( true );
    connect ( m_bgtype, SIGNAL( clicked(int)), this, SLOT( bgTypeClicked(int)));

    QRadioButton *rb;
    rb = new QRadioButton( tr( "Ruled" ), tab, "ruled" );
    m_bgtype-> insert ( rb, TabConfig::Ruled );
    gridLayout-> addWidget( rb, 0, 1 );

    QHBoxLayout *hb = new QHBoxLayout ( );
    hb-> setSpacing ( 3 );

    rb = new QRadioButton( tr( "Solid color" ), tab, "solid" );
    m_bgtype-> insert ( rb, TabConfig::SolidColor );
    hb-> addWidget ( rb );
    hb-> addSpacing ( 10 );

    m_solidcolor = new Opie::OColorButton ( tab, QColor ( m_tc. m_bg_color ) );
    connect ( m_solidcolor, SIGNAL( colorSelected(const QColor&)), this, SLOT( bgColorClicked(const QColor&)));
    hb-> addWidget ( m_solidcolor );
    hb-> addStretch ( 10 );

    gridLayout-> addLayout ( hb, 1, 1 );

    hb = new QHBoxLayout ( );
    hb-> setSpacing ( 3 );

    rb = new QRadioButton( tr( "Image" ), tab, "image" );
    m_bgtype-> insert ( rb, TabConfig::Image );
    hb-> addWidget( rb );
    hb-> addSpacing ( 10 );

    m_imagebrowse = new QPushButton ( tr( "Select..." ), tab );
    connect ( m_imagebrowse, SIGNAL( clicked()), this, SLOT( bgImageClicked()));
    hb-> addWidget ( m_imagebrowse );
    hb-> addStretch ( 10 );

    gridLayout-> addLayout ( hb, 2, 1 );

    QPushButton *p = new QPushButton ( tr( "Default" ), tab );
    connect ( p, SIGNAL( clicked()), this, SLOT( bgDefaultClicked()));
    gridLayout-> addWidget ( p, 3, 1 );

    vertLayout-> addStretch ( 10 );

    return tab;
}

QWidget *TabDialog::createIconTab ( QWidget *parent )
{
    QWidget *tab = new QWidget( parent, "IconTab" );
    QVBoxLayout *vertLayout = new QVBoxLayout( tab, 3, 3 );

    QGridLayout* gridLayout = new QGridLayout ( vertLayout );
    gridLayout-> setColStretch ( 1, 10 );

    QLabel* label = new QLabel( tr( "Size:" ), tab );
    gridLayout-> addWidget ( label, 0, 0 );
    m_iconsize = new QButtonGroup( tab, "buttongroup" );
    m_iconsize-> hide ( );
    m_iconsize-> setExclusive ( true );

    QRadioButton *rb;
    rb = new QRadioButton( tr( "Small" ), tab, "iconsmall" );
    m_iconsize-> insert ( rb, TabConfig::List );
    gridLayout-> addWidget( rb, 0, 1 );

    rb = new QRadioButton( tr( "Large" ), tab, "iconlarge" );
    m_iconsize-> insert ( rb, TabConfig::Icon );
    gridLayout-> addWidget( rb, 1, 1 );
    connect ( m_iconsize, SIGNAL( clicked(int)), this, SLOT( iconSizeClicked(int)));
    gridLayout-> addRowSpacing ( 2, 8 );

    label = new QLabel ( tr( "Color:" ), tab );
    gridLayout-> addWidget ( label, 3, 0 );
    gridLayout-> addRowSpacing ( 3, 8 );

    m_iconcolor = new Opie::OColorButton ( tab, QColor ( m_tc. m_text_color ) );
    connect ( m_iconcolor, SIGNAL( colorSelected(const QColor&)), this, SLOT( iconColorClicked(const QColor&)));
    gridLayout-> addWidget ( m_iconcolor, 3, 1, AlignLeft );

    label = new QLabel( tr( "Columns:" ), tab );
    gridLayout->addWidget( label, 4, 0 );
    m_iconcolumns = new QSpinBox( 0, 10, 1, tab, "iconspinbox" );
    m_iconcolumns->setSpecialValueText( tr( "Automatic" ) );
    gridLayout->addWidget( m_iconcolumns, 4, 1, AlignLeft );

    vertLayout-> addStretch ( 10 );

    if ( m_tc.m_last_directory == QString::null ) {
        m_tc.m_last_directory = QPEApplication::documentDir();
    }

    return tab;
}


void TabDialog::iconSizeClicked ( int s )
{
    m_sample-> setViewMode ((TabConfig::ViewMode) s );
}

void TabDialog::fontClicked ( const QFont &f )
{
    m_sample-> setViewFont ( f );
}

void TabDialog::bgTypeClicked ( int t )
{
    QString s;
    m_solidcolor-> setEnabled ( t == TabConfig::SolidColor );
    m_imagebrowse-> setEnabled ( t == TabConfig::Image );

    if ( t == TabConfig::SolidColor )
        s = m_solidcolor-> color ( ). name ( );
    else if ( t == TabConfig::Image )
        s = m_bgimage;

    m_sample-> setBackgroundType ((TabConfig::BackgroundType) t, s );
}

void TabDialog::bgColorClicked ( const QColor & )
{
    m_sample-> setBackgroundType ( TabConfig::SolidColor, m_solidcolor-> color ( ). name ( ) );
}

void TabDialog::iconColorClicked ( const QColor &col )
{
    m_sample-> setTextColor ( col );
}

void TabDialog::bgImageClicked ( )
{
    // ### use OFileSelector here ###
    // this is just a quick c&p from the old appearance app

    MimeTypes types;
    QStringList list;
    list << "image/*";
    types. insert ( "Images", list );

    QString file = OFileDialog::getOpenFileName ( 1, m_tc.m_last_directory, QString::null, types );

    if ( !file. isEmpty ( )) {
        m_tc.m_last_directory = QFileInfo( file ).dirPath();
        m_bgimage = DocLnk ( file ). file ( );
        m_sample-> setBackgroundType ( TabConfig::Image, m_bgimage );
    }
}

void TabDialog::bgDefaultClicked ( )
{
    m_bgtype-> setButton ( TabConfig::Image );
    m_bgimage = "launcher/opie-background";
    bgTypeClicked( TabConfig::Image );
    //m_sample-> setBackgroundType ( TabConfig::Image, m_bgimage );
}

void TabDialog::accept ( )
{
    m_tc. m_view = (TabConfig::ViewMode) m_iconsize-> id ( m_iconsize-> selected ( ));
    m_tc. m_bg_type = (TabConfig::BackgroundType) m_bgtype-> id ( m_bgtype-> selected ( ));
    m_tc. m_bg_color = m_solidcolor-> color ( ). name ( );
    m_tc. m_iconcolumns = m_iconcolumns-> value( );
    m_tc. m_bg_image = m_bgimage;
    m_tc. m_text_color = m_iconcolor-> color ( ). name ( );

    m_tc. m_font_use = m_fontuse-> isChecked ( );

    if ( m_tc. m_font_use ) {
        QFont f = m_fontselect-> selectedFont ( );

        m_tc. m_font_family = f. family ( );
        m_tc. m_font_size = f. pointSize ( );
        m_tc. m_font_weight = f. weight ( );
        m_tc. m_font_italic = f. italic ( );
    }

    QDialog::accept ( );
}

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