Qt: EPGView: highlight day change

modules/gui/qt4/components/epg/EPGView.cpp

@@ -27,17 +27,38 @@
 #include <QDateTime>
 #include <QMatrix>
 #include <QPaintEvent>
+#include <QRectF>
 
 EPGGraphicsScene::EPGGraphicsScene( QObject *parent ) : QGraphicsScene( parent )
 {}
 
 void EPGGraphicsScene::drawBackground( QPainter *painter, const QRectF &rect)
 {
-    EPGView *epgView;
+    EPGView *epgView = qobject_cast<EPGView *>(parent());
+
+    /* day change */
+    QDateTime rectstarttime = epgView->startTime().addSecs( rect.left() );
+    QDateTime nextdaylimit = QDateTime( rectstarttime.date() );
+    QRectF area( rect );
+    while( area.left() < width() )
+    {
+        nextdaylimit = nextdaylimit.addDays( 1 );
+        area.setRight( epgView->startTime().secsTo( nextdaylimit ) );
+
+        if ( epgView->startTime().date().daysTo( nextdaylimit.date() ) % 2 != 0 )
+            painter->fillRect( area, palette().color( QPalette::Base ) );
+        else
+            painter->fillRect( area, palette().color( QPalette::AlternateBase ) );
+
+        area.setLeft( area.right() + 1 );
+    }
+
+    /* channels lines */
     painter->setPen( QPen( QColor( 224, 224, 224 ) ) );
     for( int y = rect.top() + TRACKS_HEIGHT ; y < rect.bottom() ; y += TRACKS_HEIGHT )
        painter->drawLine( QLineF( rect.left(), y, rect.right(), y ) );
-    epgView = qobject_cast<EPGView *>(parent());
+
+    /* current hour line */
     int x = epgView->startTime().secsTo( epgView->baseTime() );
     painter->setPen( QPen( QColor( 255, 192, 192 ) ) );
     painter->drawLine( QLineF( x, rect.top(), x, rect.bottom() ) );