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path: root/amarok/src/prettypopupmenu.cpp
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/***************************************************************************
 *   Copyright (C) 1996-2000 the kicker authors.                           *
 *   Copyright (C) 2005 Mark Kretschmann <[email protected]>                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Steet, Fifth Floor, Boston, MA  02110-1301, USA.          *
 ***************************************************************************/

#include "prettypopupmenu.h"

#include <tqpainter.h>
#include <tqpixmap.h>
#include <tqstyle.h>

#include <kapplication.h>
#include <kconfig.h>
#include <kiconeffect.h>
#include <kstandarddirs.h>


TQImage PrettyPopupMenu::s_sidePixmap;
TQColor PrettyPopupMenu::s_sidePixmapColor;

////////////////////////////////////////////////////////////////////////////////
// public
////////////////////////////////////////////////////////////////////////////////

PrettyPopupMenu::PrettyPopupMenu( TQWidget* parent, const char* name )
    : KPopupMenu( parent, name )
{
    // Must be initialized so that we know the size on first invocation
    if ( s_sidePixmap.isNull() )
        generateSidePixmap();
}


////////////////////////////////////////////////////////////////////////////////
// private
////////////////////////////////////////////////////////////////////////////////

void
PrettyPopupMenu::generateSidePixmap()
{
    const TQColor newColor = calcPixmapColor();

    if ( newColor != s_sidePixmapColor ) {
        s_sidePixmapColor = newColor;
        s_sidePixmap.load( locate( "data","amarok/images/menu_sidepixmap.png" ) );
        KIconEffect::colorize( s_sidePixmap, newColor, 1.0 );
    }
}

TQRect
PrettyPopupMenu::sideImageRect() const
{
    return TQStyle::visualRect( TQRect( frameWidth(), frameWidth(), s_sidePixmap.width(),
                                      height() - 2*frameWidth() ), this );
}

TQColor
PrettyPopupMenu::calcPixmapColor()
{
    KConfig *config = KGlobal::config();
    config->setGroup("WM");
    TQColor color = TQApplication::palette().active().highlight();
//     TQColor activeTitle = TQApplication::palette().active().background();
//     TQColor inactiveTitle = TQApplication::palette().inactive().background();
    TQColor activeTitle = config->readColorEntry("activeBackground", &color);
    TQColor inactiveTitle = config->readColorEntry("inactiveBackground", &color);

    // figure out which color is most suitable for recoloring to
    int h1, s1, v1, h2, s2, v2, h3, s3, v3;
    activeTitle.hsv(&h1, &s1, &v1);
    inactiveTitle.hsv(&h2, &s2, &v2);
    TQApplication::palette().active().background().hsv(&h3, &s3, &v3);

    if ( (kAbs(h1-h3)+kAbs(s1-s3)+kAbs(v1-v3) < kAbs(h2-h3)+kAbs(s2-s3)+kAbs(v2-v3)) &&
            ((kAbs(h1-h3)+kAbs(s1-s3)+kAbs(v1-v3) < 32) || (s1 < 32)) && (s2 > s1))
        color = inactiveTitle;
    else
        color = activeTitle;

    // limit max/min brightness
    int r, g, b;
    color.rgb(&r, &g, &b);
    int gray = tqGray(r, g, b);
    if (gray > 180) {
        r = (r - (gray - 180) < 0 ? 0 : r - (gray - 180));
        g = (g - (gray - 180) < 0 ? 0 : g - (gray - 180));
        b = (b - (gray - 180) < 0 ? 0 : b - (gray - 180));
    } else if (gray < 76) {
        r = (r + (76 - gray) > 255 ? 255 : r + (76 - gray));
        g = (g + (76 - gray) > 255 ? 255 : g + (76 - gray));
        b = (b + (76 - gray) > 255 ? 255 : b + (76 - gray));
    }
    color.setRgb(r, g, b);

    return color;
}

void
PrettyPopupMenu::setMinimumSize(const TQSize & s)
{
    KPopupMenu::setMinimumSize(s.width() + s_sidePixmap.width(), s.height());
}

void
PrettyPopupMenu::setMaximumSize(const TQSize & s)
{
    KPopupMenu::setMaximumSize(s.width() + s_sidePixmap.width(), s.height());
}

void
PrettyPopupMenu::setMinimumSize(int w, int h)
{
    KPopupMenu::setMinimumSize(w + s_sidePixmap.width(), h);
}

void
PrettyPopupMenu::setMaximumSize(int w, int h)
{
  KPopupMenu::setMaximumSize(w + s_sidePixmap.width(), h);
}

void PrettyPopupMenu::resizeEvent(TQResizeEvent * e)
{
    KPopupMenu::resizeEvent( e );

    setFrameRect( TQStyle::visualRect( TQRect( s_sidePixmap.width(), 0,
                                      width() - s_sidePixmap.width(), height() ), this ) );
}

//Workaround TQt3.3.x sizing bug, by ensuring we're always wide enough.
void PrettyPopupMenu::resize( int width, int height )
{
    width = kMax(width, maximumSize().width());
    KPopupMenu::resize(width, height);
}

void
PrettyPopupMenu::paintEvent( TQPaintEvent* e )
{
    generateSidePixmap();

    TQPainter p( this );

    TQRect r = sideImageRect();
    r.setTop( r.bottom() - s_sidePixmap.height() );
    if ( r.intersects( e->rect() ) )
    {
        TQRect drawRect = r.intersect( e->rect() ).intersect( sideImageRect() );
        TQRect pixRect = drawRect;
        pixRect.moveBy( -r.left(), -r.top() );
        p.drawImage( drawRect.topLeft(), s_sidePixmap, pixRect );
    }

    p.setClipRegion( e->region() );


    //NOTE The order is important here. drawContents() must be called before drawPrimitive(),
    //     otherwise we get rendering glitches.

    drawContents( &p );

    tqstyle().tqdrawPrimitive( TQStyle::PE_PanelPopup, &p,
                           TQRect( 0, 0, width(), height() ),
                           colorGroup(), TQStyle::Style_Default,
                           TQStyleOption( frameWidth(), 0 ) );
}


#include "prettypopupmenu.moc"