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List:       kde-commits
Subject:    branches/kdepim/enterprise4/kdepim/kleopatra/utils
From:       Marc Mutz <mutz () kde ! org>
Date:       2010-10-29 9:37:53
Message-ID: 20101029093753.9C398AC89B () svn ! kde ! org
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SVN commit 1190972 by mutz:

KDLogTextWidget: upgrade to version from KDTools v2.2, pt.2: implement alternating \
row colours

 M  +65 -1     kdlogtextwidget.cpp  
 M  +4 -0      kdlogtextwidget.h  


--- branches/kdepim/enterprise4/kdepim/kleopatra/utils/kdlogtextwidget.cpp \
#1190971:1190972 @@ -73,6 +73,11 @@
 
     QPoint scrollOffset() const;
 
+    QRect lineRect( int idx ) const {
+        assert( !cache.dirty );
+        return QRect( 0, idx * cache.fontMetrics.lineSpacing, \
cache.dimensions.longestLineLength, cache.fontMetrics.lineSpacing-1 ); +    }
+
     struct Style {
         QColor color;
 
@@ -100,6 +105,8 @@
     unsigned int minimumVisibleLines;
     unsigned int minimumVisibleColumns;
 
+    bool alternatingRowColors;
+
     QBasicTimer timer;
 
     mutable struct Cache {
@@ -235,6 +242,26 @@
     return d->minimumVisibleColumns;
 }
 
+/*!
+  \property KDLogTextWidget::alternatingRowColors
+
+  Specifies whether the background should be drawn using
+  row-alternating colors. The default is \c false.
+
+  Get this property's value using %alternatingRowColors(), and set it
+  using %setAlternatingRowColors().
+*/
+void KDLogTextWidget::setAlternatingRowColors( bool on ) {
+    if ( on == d->alternatingRowColors )
+        return;
+    d->alternatingRowColors = on;
+    update();
+}
+
+bool KDLogTextWidget::alternatingRowColors() const {
+    return d->alternatingRowColors;
+}
+
 QSize KDLogTextWidget::minimumSizeHint() const {
     d->updateCache();
     const QSize base = QAbstractScrollArea::minimumSizeHint();
@@ -309,6 +336,35 @@
 
     const Private::Cache & cache = d->cache;
 
+    p.setPen( Qt::NoPen );
+
+    p.setBrush( palette().base() );
+
+    if ( d->alternatingRowColors ) {
+
+        p.drawRect( visible );
+
+#if 0 // leaves garbage
+        for ( unsigned int i = visibleLines.first % 2 ? visibleLines.first+1 : \
visibleLines.first,   end = visibleLines.second ; i < end ; i+=2 ) +            \
p.drawRect( d->lineRect( i ) ); +
+        if ( visibleLines.second >= 0 ) {
+            const int lastY = d->lineRect( visibleLines.second-1 ).y();
+            if ( lastY < visible.bottom() )
+                p.drawRect( 0, lastY+1, cache.dimensions.longestLineLength, \
visible.bottom() - lastY ); +        }
+#endif
+
+        p.setBrush( palette().alternateBase() );
+        for ( unsigned int i = visibleLines.first % 2 ? visibleLines.first   : \
visibleLines.first+1, end = visibleLines.second ; i < end ; i+=2 ) +            \
p.drawRect( d->lineRect( i ) ); +
+    } else {
+
+        p.drawRect( visible );
+
+    }
+
     // ### unused optimisation: paint lines by styles to minimise pen changes.
     for ( unsigned int i = visibleLines.first, end = visibleLines.second ; i != end \
; ++i ) {  const Private::LineItem & li = d->lines[i];
@@ -348,10 +404,18 @@
       historySize( 0xFFFFFFFF ),
       minimumVisibleLines( 1 ),
       minimumVisibleColumns( 1 ),
+      alternatingRowColors( false ),
       timer(),
       cache()
 {
-
+    // PENDING(marc) find all the magic flags we need here...
+    QWidget * const vp = qq->viewport();
+    vp->setBackgroundRole( QPalette::Base );
+    vp->setAttribute( Qt::WA_StaticContents );
+    vp->setAttribute( Qt::WA_NoSystemBackground );
+#ifndef QT_NO_CURSOR
+    vp->setCursor(Qt::IBeamCursor);
+#endif
 }
 
 KDLogTextWidget::Private::~Private() {}
--- branches/kdepim/enterprise4/kdepim/kleopatra/utils/kdlogtextwidget.h \
#1190971:1190972 @@ -38,6 +38,7 @@
     Q_PROPERTY( QStringList lines READ lines WRITE setLines )
     Q_PROPERTY( uint minimumVisibleLines READ minimumVisibleLines WRITE \
                setMinimumVisibleLines )
     Q_PROPERTY( uint minimumVisibleColumns READ minimumVisibleColumns WRITE \
setMinimumVisibleColumns ) +    Q_PROPERTY( bool alternatingRowColors READ \
alternatingRowColors WRITE setAlternatingRowColors )  Q_CLASSINFO( "description", \
"High-speed text display widget" )  public:
     explicit KDLogTextWidget( QWidget * parent=0 );
@@ -57,6 +58,9 @@
     void setMinimumVisibleColumns( unsigned int num );
     unsigned int minimumVisibleColumns() const;
 
+    void setAlternatingRowColors( bool on );
+    bool alternatingRowColors() const;
+
     /*! \reimp */ QSize minimumSizeHint() const;
     /*! \reimp */ QSize sizeHint() const;
 


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