Make header width responsive to label text

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

diff --git a/pv/view/header.cpp b/pv/view/header.cpp
index dec5c20cbabfad042ec785886a2a2be9ca747e40..ca5df96fca250dc23666bbdcf59f644a07083139 100644 (file)
--- a/pv/view/header.cpp
+++ b/pv/view/header.cpp
@@ -42,6 +42,8 @@ using namespace std;
 namespace pv {
 namespace view {
 
+const int Header::Padding = 12;
+
 Header::Header(View &parent) :
        MarginWidget(parent),
        _dragging(false)
@@ -56,6 +58,19 @@ Header::Header(View &parent) :
                this, SLOT(on_signals_moved()));
 }
 
+QSize Header::sizeHint() const
+{
+       int max_width = 0;
+
+       const vector< shared_ptr<Trace> > traces(_view.get_traces());
+       BOOST_FOREACH(shared_ptr<Trace> t, traces) {
+               assert(t);
+               max_width = max(max_width, (int)t->get_label_rect(0).width());
+       }
+
+       return QSize(max_width + Padding, 0);
+}
+
 shared_ptr<Trace> Header::get_mouse_over_trace(const QPoint &pt)
 {
        const int w = width();
@@ -261,7 +276,7 @@ void Header::on_signals_changed()
                connect(t.get(), SIGNAL(visibility_changed()),
                        this, SLOT(update()));
                connect(t.get(), SIGNAL(text_changed()),
-                       this, SLOT(update()));
+                       this, SLOT(on_trace_text_changed()));
                connect(t.get(), SIGNAL(colour_changed()),
                        this, SLOT(update()));
        }
@@ -272,6 +287,11 @@ void Header::on_signals_moved()
        update();
 }
 
+void Header::on_trace_text_changed()
+{
+       update();
+       geometry_updated();
+}
 
 } // namespace view
 } // namespace pv