Eliminated get_nominal_offset

[pulseview.git] / pv / view / viewport.cpp

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index 6ce52abc28c4a362cf798fac507e4187c311cef7..5882600524d1b77bdfaf0d02ce38ad2e040a96e3 100644 (file)
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -59,7 +59,7 @@ int Viewport::get_total_height() const
        return h;
 }
 
-void Viewport::paintEvent(QPaintEvent *event)
+void Viewport::paintEvent(QPaintEvent*)
 {
        const vector< shared_ptr<Signal> > sigs(
                _view.session().get_signals());
@@ -74,11 +74,8 @@ void Viewport::paintEvent(QPaintEvent *event)
        BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
        {
                assert(s);
-
-               const QRect signal_rect(0, s->get_v_offset() - v_offset,
-                       width(), View::SignalHeight);
-
-               s->paint(p, signal_rect, _view.scale(), _view.offset());
+               s->paint(p, s->get_v_offset() - v_offset, 0, width(),
+                       _view.scale(), _view.offset());
        }
 
        draw_cursors_foreground(p);
@@ -115,7 +112,16 @@ void Viewport::mouseReleaseEvent(QMouseEvent *event)
 void Viewport::wheelEvent(QWheelEvent *event)
 {
        assert(event);
-       _view.zoom(event->delta() / 120, event->x());
+
+       if (event->orientation() == Qt::Vertical) {
+               // Vertical scrolling is interpreted as zooming in/out
+               _view.zoom(event->delta() / 120, event->x());
+       } else if (event->orientation() == Qt::Horizontal) {
+               // Horizontal scrolling is interpreted as moving left/right
+               _view.set_scale_offset(_view.scale(),
+                                      event->delta() * _view.scale()
+                                      + _view.offset());
+       }
 }
 
 void Viewport::draw_cursors_background(QPainter &p)