src/prettypopupmenu.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 1996-2000 the kicker authors.                           *
   3  *   Copyright (C) 2005 Mark Kretschmann <markey@web.de>                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.          *
  19  ***************************************************************************/
  20
  21 #include "prettypopupmenu.h"
  22
  23 #include <KApplication>
  24 #include <KConfig>
  25 #include <KIconEffect>
  26 #include <KStandardDirs>
  27
  28 #include <QPainter>
  29 #include <QPaintEvent>
  30 #include <QPixmap>
  31 #include <QResizeEvent>
  32 #include <QStyle>
  33 #include <QStyleOptionFrame>
  34
  35
  36 QImage PrettyPopupMenu::s_sidePixmap;
  37 QColor PrettyPopupMenu::s_sidePixmapColor;
  38
  39 ////////////////////////////////////////////////////////////////////////////////
  40 // public
  41 ////////////////////////////////////////////////////////////////////////////////
  42
  43 PrettyPopupMenu::PrettyPopupMenu( QWidget* parent )
  44     : KMenu( parent )
  45 {
  46     // Must be initialized so that we know the size on first invocation
  47     if ( s_sidePixmap.isNull() )
  48         generateSidePixmap();
  49 }
  50
  51
  52 ////////////////////////////////////////////////////////////////////////////////
  53 // private
  54 ////////////////////////////////////////////////////////////////////////////////
  55
  56 void
  57 PrettyPopupMenu::generateSidePixmap()
  58 {
  59     const QColor newColor = calcPixmapColor();
  60
  61     if ( newColor != s_sidePixmapColor ) {
  62         s_sidePixmapColor = newColor;
  63         s_sidePixmap.load( KStandardDirs::locate( "data","amarok/images/menu_sidepixmap.png" ) );
  64         KIconEffect::colorize( s_sidePixmap, newColor, 1.0 );
  65     }
  66 }
  67
  68 QRect
  69 PrettyPopupMenu::sideImageRect() const
  70 {
  71     return QStyle::visualRect( layoutDirection(), rect(), QRect( frameWidth(), frameWidth(),
  72                 s_sidePixmap.width(), height() - 2*frameWidth() ) );
  73 }
  74
  75 QColor
  76 PrettyPopupMenu::calcPixmapColor()
  77 {
  78     KConfigGroup cg = KGlobal::config()->group("WM");
  79     QColor color = QApplication::palette().active().highlight();
  80 //     QColor activeTitle = QApplication::palette().active().background();
  81 //     QColor inactiveTitle = QApplication::palette().inactive().background();
  82     QColor activeTitle = cg.readEntry("activeBackground", color);
  83     QColor inactiveTitle = cg.readEntry("inactiveBackground", color);
  84
  85     // figure out which color is most suitable for recoloring to
  86     int h1, s1, v1, h2, s2, v2, h3, s3, v3;
  87     activeTitle.hsv(&h1, &s1, &v1);
  88     inactiveTitle.hsv(&h2, &s2, &v2);
  89     QApplication::palette().active().background().hsv(&h3, &s3, &v3);
  90
  91     if ( (qAbs(h1-h3)+qAbs(s1-s3)+qAbs(v1-v3) < qAbs(h2-h3)+qAbs(s2-s3)+qAbs(v2-v3)) &&
  92             ((qAbs(h1-h3)+qAbs(s1-s3)+qAbs(v1-v3) < 32) || (s1 < 32)) && (s2 > s1))
  93         color = inactiveTitle;
  94     else
  95         color = activeTitle;
  96
  97     // limit max/min brightness
  98     int r, g, b;
  99     color.rgb(&r, &g, &b);
 100     int gray = qGray(r, g, b);
 101     if (gray > 180) {
 102         r = (r - (gray - 180) < 0 ? 0 : r - (gray - 180));
 103         g = (g - (gray - 180) < 0 ? 0 : g - (gray - 180));
 104         b = (b - (gray - 180) < 0 ? 0 : b - (gray - 180));
 105     } else if (gray < 76) {
 106         r = (r + (76 - gray) > 255 ? 255 : r + (76 - gray));
 107         g = (g + (76 - gray) > 255 ? 255 : g + (76 - gray));
 108         b = (b + (76 - gray) > 255 ? 255 : b + (76 - gray));
 109     }
 110     color.setRgb(r, g, b);
 111
 112     return color;
 113 }
 114
 115 void
 116 PrettyPopupMenu::setMinimumSize(const QSize & s)
 117 {
 118     KMenu::setMinimumSize(s.width() + s_sidePixmap.width(), s.height());
 119 }
 120
 121 void
 122 PrettyPopupMenu::setMaximumSize(const QSize & s)
 123 {
 124     KMenu::setMaximumSize(s.width() + s_sidePixmap.width(), s.height());
 125 }
 126
 127 void
 128 PrettyPopupMenu::setMinimumSize(int w, int h)
 129 {
 130     KMenu::setMinimumSize(w + s_sidePixmap.width(), h);
 131 }
 132
 133 void
 134 PrettyPopupMenu::setMaximumSize(int w, int h)
 135 {
 136   KMenu::setMaximumSize(w + s_sidePixmap.width(), h);
 137 }
 138
 139 void PrettyPopupMenu::resizeEvent(QResizeEvent * e)
 140 {
 141     KMenu::resizeEvent( e );
 142
 143 #if 0
 144     setFrameRect( QStyle::visualRect( QRect( s_sidePixmap.width(), 0,
 145                                       width() - s_sidePixmap.width(), height() ), this ) );
 146 #endif
 147 }
 148
 149 //Workaround Qt3.3.x sizing bug, by ensuring we're always wide enough.
 150 void PrettyPopupMenu::resize( int width, int height )
 151 {
 152     width = qMax(width, maximumSize().width());
 153     KMenu::resize(width, height);
 154 }
 155
 156 void
 157 PrettyPopupMenu::paintEvent( QPaintEvent* e )
 158 {
 159     generateSidePixmap();
 160
 161     QPainter p( this );
 162     p.setClipRegion(e->region());
 163
 164     QStyleOptionFrame frOpt;
 165     frOpt.init(this);
 166     frOpt.lineWidth = frameWidth();
 167     frOpt.midLineWidth = 0;
 168     style()->drawPrimitive( QStyle::PE_FrameMenu, &frOpt, &p, this);
 169
 170     QRect r = sideImageRect();
 171     r.setBottom( r.bottom() - s_sidePixmap.height() );
 172     if ( r.intersects( e->rect() ) )
 173     {
 174         QRect drawRect = r.intersect( e->rect() ).intersect( sideImageRect() );
 175         QRect pixRect = drawRect;
 176         pixRect.moveBy( -r.left(), -r.top() );
 177         p.drawImage( drawRect.topLeft(), s_sidePixmap, pixRect );
 178     }
 179
 180     KMenu::paintEvent( e );
 181
 182     p.setClipRegion( e->region() );
 183 }
 184
 185
 186 #include "prettypopupmenu.moc"