File indexing completed on 2024-05-05 16:54:13

 /****************************************************************************************
  * Copyright (c) 2008 Nikolaj Hald Nielsen <nhn@kde.org>                                *
  *                                                                                      *
  * 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, see <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
  
 #ifndef PALETTEHANDLER_H
 #define PALETTEHANDLER_H
 
 #include "amarok_export.h"
 
 #include <QObject>
 #include <QPalette>
 
 class QAbstractItemView;
 class PaletteHandler;
 
 namespace The {
     AMAROK_EXPORT PaletteHandler* paletteHandler();
 }
 
 /**
 A small singleton class to handle propagating palette change notifications and hold some utility functions for updating certain widgets
 
     @author Nikolaj Hald Nielsen <nhn@kde.org>
 */
 class AMAROK_EXPORT PaletteHandler : public QObject
 {
     Q_OBJECT
 
 friend PaletteHandler* The::paletteHandler();
 
 public:
     ~PaletteHandler() override;
 
     QPalette palette() const;
 
     void setPalette( const QPalette & palette );
 
     /** Gives the item view a special darker palette and transparent background.
         You need to connect to the newPalette signal afterwards because this
         darker palette does not automatically update.
         @param view the item view.
     */
     void updateItemView( QAbstractItemView * view );
 
     /**
     * Returns the foreground color for the painter by checking the painting QWidget::foregroundRole() and falling back to
     * QPalette::WindowText (or QPalette::HighlightedText if @p selected)
     * Uses the widgets palette or the application palette as fallback
     * @param p the painter.
     * @param selected the mode switcher.
     */    
     QColor foregroundColor( const QPainter *p, bool selected = false );
 
     /**
      * Returns the highlight color which should be used instead of the color from KDE.
      * @param percentSaturation Decimal percentage to saturate the highlight color. Will
      *        reduce (or magnify) the saturation in HSV representation of the color.
      *        Defaults to 50%
      * @param percentValue Decimal percentage to multiply the value of the HSV color with.
      *        Defaults to 100%.
      * @return Highlight color, which is the KDE highlight color, with reduced saturation
      *         (less contrast).
      */
     static QColor highlightColor( qreal percentSaturation = 0.5, qreal percentValue = 1.0 );
 
     /**
      * Returns the background color used in context applets.
      */
     static QColor backgroundColor();
 
     /**
      * Returns the alternate background color used in context applets.
      */
     static QColor alternateBackgroundColor();
 
 Q_SIGNALS:
     void newPalette( const QPalette & palette );
 
 private:
     PaletteHandler( QObject* parent = nullptr );
 
     QPalette m_palette;
 };
 
 #endif