Session: Fix issue #67 by improving error handling

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

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
deleted file mode 100644 (file)
index 7d844d2..0000000
--- a/pv/view/viewport.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
- */
-
-#include "view.h"
-#include "viewport.h"
-
-#include "signal.h"
-#include "../sigsession.h"
-
-#include <QMouseEvent>
-
-#include <boost/foreach.hpp>
-
-using namespace boost;
-using namespace std;
-
-namespace pv {
-namespace view {
-
-Viewport::Viewport(View &parent) :
-       QWidget(&parent),
-        _view(parent)
-{
-       setMouseTracking(true);
-       setAutoFillBackground(true);
-       setBackgroundRole(QPalette::Base);
-}
-
-int Viewport::get_total_height() const
-{
-       int height = 0;
-       BOOST_FOREACH(const shared_ptr<Signal> s,
-               _view.session().get_signals()) {
-               assert(s);
-               height += View::SignalHeight;
-       }
-
-       return height;
-}
-
-void Viewport::paintEvent(QPaintEvent *event)
-{
-       const vector< shared_ptr<Signal> > &sigs =
-               _view.session().get_signals();
-
-       QPainter p(this);
-       p.setRenderHint(QPainter::Antialiasing);
-
-       draw_cursors_background(p);
-
-       // Plot the signal
-       const int v_offset = _view.v_offset();
-       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());
-       }
-
-       draw_cursors_foreground(p);
-
-       p.end();
-}
-
-void Viewport::mousePressEvent(QMouseEvent *event)
-{
-       assert(event);
-
-       _mouse_down_point = event->pos();
-       _mouse_down_offset = _view.offset();
-}
-
-void Viewport::mouseMoveEvent(QMouseEvent *event)
-{
-       assert(event);
-
-       if(event->buttons() & Qt::LeftButton)
-       {
-               _view.set_scale_offset(_view.scale(),
-                       _mouse_down_offset +
-                       (_mouse_down_point - event->pos()).x() *
-                       _view.scale());
-       }
-}
-
-void Viewport::mouseReleaseEvent(QMouseEvent *event)
-{
-       assert(event);
-}
-
-void Viewport::wheelEvent(QWheelEvent *event)
-{
-       assert(event);
-       _view.zoom(event->delta() / 120, event->x());
-}
-
-void Viewport::draw_cursors_background(QPainter &p)
-{
-       if(!_view.cursors_shown())
-               return;
-
-       p.setPen(Qt::NoPen);
-       p.setBrush(QBrush(View::CursorAreaColour));
-
-       const pair<Cursor, Cursor> &c = _view.cursors();
-       const float x1 = (c.first.time() - _view.offset()) / _view.scale();
-       const float x2 = (c.second.time() - _view.offset()) / _view.scale();
-       const int l = (int)max(min(x1, x2), 0.0f);
-       const int r = (int)min(max(x1, x2), (float)width());
-
-       p.drawRect(l, 0, r - l, height());
-}
-
-void Viewport::draw_cursors_foreground(QPainter &p)
-{
-       if(!_view.cursors_shown())
-               return;
-
-       const QRect r = rect();
-       pair<Cursor, Cursor> &cursors = _view.cursors();
-       cursors.first.paint(p, r);
-       cursors.second.paint(p, r);
-}
-
-} // namespace view
-} // namespace pv