Changeset 174 for trunk/src/widgets/qdial.cpp

Timestamp:

Nov 6, 2007, 11:27:57 PM (18 years ago)

Author:

dmik

Message:

Styles: Implemented the first version of the Warp4 style (contributed by Cornelis Bockemuehl).

File:

• trunk/src/widgets/qdial.cpp (modified) (2 diffs)

trunk/src/widgets/qdial.cpp

@@ -261 +261 @@
     p.begin( this );
 
+    // note: drawing dial controls is NOT AT ALL using the QStyle drawing
+    // concept, so we have to draw the Warp4 dial here explicitly in
+    // the widget code!
+    if ( style().styleHint( QStyle::SH_GUIStyle ) == QStyle::PMStyle ) {
+        QRect rr(rect());
+
+        // erase the background
+        QBrush br( paletteBackgroundColor() );
+        p.setPen( QPen::NoPen );
+        p.fillRect( rr, br );
+
+        // centered quadratic rectangle
+        if ( rr.width() > rr.height() ) {
+            rr.setWidth( rr.height() );
+            rr.moveBy( (width() - rr.width()) / 2, 0 );
+        } else {
+            rr.setHeight( rr.width() );
+            rr.moveBy( 0, (height() - rr.height()) / 2 );
+        }
+
+        // draw the ticks ("notches")
+        if ( d->showNotches ) {
+            calcLines();
+            p.setPen( colorGroup().foreground() );
+            p.drawLineSegments( d->lines );
+        }
+
+        // draw dial (circle with shadow)
+        int bigLineSize = calcBigLineSize();
+        int dist = 6;
+        rr.setLeft( rr.left() + bigLineSize + dist );
+        rr.setTop( rr.top() + bigLineSize + dist );
+        rr.setRight( rr.right() - bigLineSize - dist );
+        rr.setBottom( rr.bottom() - bigLineSize - dist );
+        p.setPen( QPen( colorGroup().shadow(), 2) );
+        p.drawEllipse( rr );
+        rr.setLeft( rr.left() + 2 );
+        rr.setTop( rr.top() + 2 );
+        rr.setRight( rr.right() - 2 );
+        rr.setBottom( rr.bottom() - 2 );
+        QPointArray pa;
+        pa.putPoints( 0, 3,
+                      rr.left() - 2, rr.top() - 2,
+                      rr.right() + 2, rr.top() - 2,
+                      rr.left() - 2, rr.bottom() + 2 );
+        p.setClipRegion( QRegion( pa ) );
+        p.setPen( QPen( colorGroup().light(), 2 ) );
+        p.drawEllipse( rr );
+        pa.resize( 0 );
+        pa.putPoints( 0, 3,
+                      rr.right() + 2, rr.top() - 2,
+                      rr.right() + 2, rr.bottom() + 2,
+                      rr.left() - 2, rr.bottom() + 2 );
+        p.setClipRegion( QRegion( pa ) );
+        p.setPen( QPen( colorGroup().dark(), 2 ) );
+        p.drawEllipse( rr );
+        p.setClipping( false );
+
+        // draw pointer (triangle)
+        double a;
+        calcArrow( a );
+        double s = sin( a ),
+               c = cos( a );
+        int r = rr.width() / 2 - 9;
+        double xtr = ((double)rr.left() + rr.right()) * .5 + r * c,
+               ytr = ((double)rr.top() + rr.bottom()) * .5 - r * s;
+        QPointArray ar;
+        ar.putPoints( 0, 3,
+                      (int)(xtr + 3.5 * c), (int)(ytr - 3.5 * s),
+                      (int)(xtr + 4 * cos(a - 2.0944)), (int)(ytr - 4 * sin(a - 2.0944)),
+                      (int)(xtr + 4 * cos(a + 2.0944)), (int)(ytr - 4 * sin(a + 2.0944)) );
+        p.setBrush( colorGroup().foreground() );
+        p.setPen( QPen::NoPen );
+        p.drawPolygon( ar );
+
+        if( hasFocus() )
+            style().drawPrimitive( QStyle::PE_FocusRect, &p, rect(), colorGroup() );
+    }
+
+    // all non-PM styles
+    else
+    {
     bool resetClipping = FALSE;
 
@@ -385 +467 @@
         style().drawPrimitive( QStyle::PE_FocusRect, &p, br, colorGroup());
     }
+    }
+
     p.end();
 }