From: Joel Holdsworth <redacted>
Date: Sat, 22 Mar 2014 10:20:44 +0000 (+0000)
Subject: Header/Viewport: Manually trigger the signals_changed event at construction
X-Git-Tag: pulseview-0.2.0~11
X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=commitdiff_plain;h=9f46d9058be2cc2b11ccecb0ba4c4f61d55bec1a

Header/Viewport: Manually trigger the signals_changed event at construction

This fixes #338
---

diff --git a/pv/view/header.cpp b/pv/view/header.cpp
index af67abdd..a7902521 100644
--- a/pv/view/header.cpp
+++ b/pv/view/header.cpp
@@ -59,6 +59,10 @@ Header::Header(View &parent) :
 
 	connect(&_view, SIGNAL(signals_moved()),
 		this, SLOT(on_signals_moved()));
+
+	// Trigger the initial event manually. The default device has signals
+	// which were created before this object came into being
+	on_signals_changed();
 }
 
 QSize Header::sizeHint() const
diff --git a/pv/view/view.cpp b/pv/view/view.cpp
index 21954333..d1174895 100644
--- a/pv/view/view.cpp
+++ b/pv/view/view.cpp
@@ -123,6 +123,8 @@ View::View(SigSession &session, QWidget *parent) :
 	_ruler->installEventFilter(this);
 	_header->installEventFilter(this);
 
+	// Trigger the initial event manually. The default device has signals
+	// which were created before this object came into being
 	signals_changed();
 }
 
diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index e9a14422..3b06cf9e 100644
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -49,6 +49,10 @@ Viewport::Viewport(View &parent) :
 
 	connect(&_view, SIGNAL(signals_moved()),
 		this, SLOT(on_signals_moved()));
+
+	// Trigger the initial event manually. The default device has signals
+	// which were created before this object came into being
+	on_signals_changed();
 }
 
 int Viewport::get_total_height() const