Added signal (multi) selection

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

diff --git a/pv/view/header.cpp b/pv/view/header.cpp
index 2f02e7744782e330107c2484bd116536d0e7f506..8434e2c8dc9ffb289c676f338d151793367e5a8e 100644 (file)
--- a/pv/view/header.cpp
+++ b/pv/view/header.cpp
@@ -28,6 +28,7 @@
 
 #include <boost/foreach.hpp>
 
+#include <QApplication>
 #include <QColorDialog>
 #include <QInputDialog>
 #include <QMenu>
@@ -55,6 +56,29 @@ Header::Header(View &parent) :
                this, SLOT(on_action_set_colour_triggered()));
 }
 
+boost::shared_ptr<pv::view::Signal> Header::get_mouse_over_signal(
+       const QPoint &pt)
+{
+       const int w = width();
+       const vector< shared_ptr<Signal> > &sigs =
+               _view.session().get_signals();
+
+       const int v_offset = _view.v_offset();
+       BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+       {
+               assert(s);
+
+               const QRect signal_heading_rect(
+                       0, s->get_v_offset() - v_offset,
+                       w, View::SignalHeight);
+
+               if(s->pt_in_label_rect(signal_heading_rect, pt))
+                       return s;
+       }
+
+       return shared_ptr<Signal>();
+}
+
 void Header::paintEvent(QPaintEvent *event)
 {
        const int w = width();
@@ -64,23 +88,45 @@ void Header::paintEvent(QPaintEvent *event)
        QPainter painter(this);
        painter.setRenderHint(QPainter::Antialiasing);
 
-       int offset = -_view.v_offset();
+       const int v_offset = _view.v_offset();
        BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
        {
                assert(s);
 
                const QRect signal_heading_rect(
-                       0, offset, w, View::SignalHeight);
+                       0, s->get_v_offset() - v_offset,
+                       w, View::SignalHeight);
 
                s->paint_label(painter, signal_heading_rect,
                        s->pt_in_label_rect(signal_heading_rect, _mouse_point));
-
-               offset += View::SignalHeight;
        }
 
        painter.end();
 }
 
+void Header::mousePressEvent(QMouseEvent *event)
+{
+       assert(event);
+
+       const vector< shared_ptr<Signal> > &sigs =
+               _view.session().get_signals();
+
+       if(~QApplication::keyboardModifiers() & Qt::ControlModifier) {
+               // Unselect all other signals because the Ctrl is not
+               // pressed
+               BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+                       s->select(false);
+       }
+
+       // Select the signal if it has been clicked
+       const shared_ptr<Signal> mouse_over_signal =
+               get_mouse_over_signal(event->pos());
+       if(mouse_over_signal)
+               mouse_over_signal->select(!mouse_over_signal->selected());
+
+       update();
+}
+
 void Header::mouseMoveEvent(QMouseEvent *event)
 {
        assert(event);
@@ -96,32 +142,18 @@ void Header::leaveEvent(QEvent *event)
 
 void Header::contextMenuEvent(QContextMenuEvent *event)
 {
-       const int w = width();
-       const vector< shared_ptr<Signal> > &sigs =
-               _view.session().get_signals();
-
-       int offset = -_view.v_offset();
-       BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
-       {
-               assert(s);
+       const shared_ptr<Signal> s = get_mouse_over_signal(_mouse_point);
 
-               const QRect signal_heading_rect(
-                       0, offset, w, View::SignalHeight);
-
-               if(s->pt_in_label_rect(signal_heading_rect, _mouse_point)) {
-                       QMenu menu(this);
-                       menu.addAction(_action_set_name);
-                       menu.addAction(_action_set_colour);
-
-                       _context_signal = s;
-                       menu.exec(event->globalPos());
-                       _context_signal.reset();
+       if(!s)
+               return;
 
-                       break;
-               }
+       QMenu menu(this);
+       menu.addAction(_action_set_name);
+       menu.addAction(_action_set_colour);
 
-               offset += View::SignalHeight;
-       }
+       _context_signal = s;
+       menu.exec(event->globalPos());
+       _context_signal.reset();
 }
 
 void Header::on_action_set_name_triggered()