]> sigrok.org Git - pulseview.git/blobdiff - pv/view/viewport.cpp
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 2dfdddc..0000000
+++ /dev/null
@@ -1,213 +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 <cassert>
-#include <cmath>
-#include <algorithm>
-#include <limits>
-
-#include "signal.hpp"
-#include "view.hpp"
-#include "viewitempaintparams.hpp"
-#include "viewport.hpp"
-
-#include <pv/session.hpp>
-
-#include <QMouseEvent>
-
-using std::abs;
-using std::back_inserter;
-using std::copy;
-using std::dynamic_pointer_cast;
-using std::max;
-using std::min;
-using std::none_of;
-using std::numeric_limits;
-using std::shared_ptr;
-using std::stable_sort;
-using std::vector;
-
-namespace pv {
-namespace view {
-
-Viewport::Viewport(View &parent) :
-       ViewWidget(parent),
-       drag_offset_(numeric_limits<double>::signaling_NaN()),
-       pinch_zoom_active_(false)
-{
-       setAutoFillBackground(true);
-       setBackgroundRole(QPalette::Base);
-}
-
-shared_ptr<ViewItem> Viewport::get_mouse_over_item(const QPoint &pt)
-{
-       const vector< shared_ptr<ViewItem> > items(this->items());
-       for (auto i = items.rbegin(); i != items.rend(); i++)
-               if ((*i)->enabled() &&
-                       (*i)->hit_box_rect(rect()).contains(pt))
-                       return *i;
-       return nullptr;
-}
-
-void Viewport::item_hover(const shared_ptr<ViewItem> &item)
-{
-       if (item)
-               setCursor(dynamic_pointer_cast<RowItem>(item) ?
-                       Qt::SizeVerCursor : Qt::SizeHorCursor);
-       else
-               unsetCursor();
-}
-
-void Viewport::drag()
-{
-       drag_offset_ = view_.offset();
-}
-
-void Viewport::drag_by(const QPoint &delta)
-{
-       if (isnan(drag_offset_))
-               return;
-
-       view_.set_scale_offset(view_.scale(), drag_offset_ -
-               delta.x() * view_.scale());
-}
-
-void Viewport::drag_release()
-{
-       drag_offset_ = numeric_limits<double>::signaling_NaN();
-}
-
-vector< shared_ptr<ViewItem> > Viewport::items()
-{
-       vector< shared_ptr<ViewItem> > items(view_.begin(), view_.end());
-       const vector< shared_ptr<TimeItem> > time_items(view_.time_items());
-       copy(time_items.begin(), time_items.end(), back_inserter(items));
-       return items;
-}
-
-bool Viewport::touch_event(QTouchEvent *event)
-{
-       QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints();
-
-       if (touchPoints.count() != 2) {
-               pinch_zoom_active_ = false;
-               return false;
-       }
-
-       const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first();
-       const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last();
-
-       if (!pinch_zoom_active_ ||
-           (event->touchPointStates() & Qt::TouchPointPressed)) {
-               pinch_offset0_ = view_.offset() + view_.scale() * touchPoint0.pos().x();
-               pinch_offset1_ = view_.offset() + view_.scale() * touchPoint1.pos().x();
-               pinch_zoom_active_ = true;
-       }
-
-       double w = touchPoint1.pos().x() - touchPoint0.pos().x();
-       if (abs(w) >= 1.0) {
-               const double scale =
-                       fabs((pinch_offset1_ - pinch_offset0_) / w);
-               double offset = pinch_offset0_ - touchPoint0.pos().x() * scale;
-               if (scale > 0)
-                       view_.set_scale_offset(scale, offset);
-       }
-
-       if (event->touchPointStates() & Qt::TouchPointReleased) {
-               pinch_zoom_active_ = false;
-
-               if (touchPoint0.state() & Qt::TouchPointReleased) {
-                       // Primary touch released
-                       drag_release();
-               } else {
-                       // Update the mouse down fields so that continued
-                       // dragging with the primary touch will work correctly
-                       mouse_down_point_ = touchPoint0.pos().toPoint();
-                       drag();
-               }
-       }
-
-       return true;
-}
-
-void Viewport::paintEvent(QPaintEvent*)
-{
-       vector< shared_ptr<RowItem> > row_items(view_.begin(), view_.end());
-       assert(none_of(row_items.begin(), row_items.end(),
-               [](const shared_ptr<RowItem> &r) { return !r; }));
-
-       stable_sort(row_items.begin(), row_items.end(),
-               [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
-                       return a->visual_v_offset() < b->visual_v_offset(); });
-
-       const vector< shared_ptr<TimeItem> > time_items(view_.time_items());
-       assert(none_of(time_items.begin(), time_items.end(),
-               [](const shared_ptr<TimeItem> &t) { return !t; }));
-
-       QPainter p(this);
-       p.setRenderHint(QPainter::Antialiasing);
-
-       const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset());
-
-       for (const shared_ptr<TimeItem> t : time_items)
-               t->paint_back(p, pp);
-       for (const shared_ptr<RowItem> r : row_items)
-               r->paint_back(p, pp);
-
-       for (const shared_ptr<TimeItem> t : time_items)
-               t->paint_mid(p, pp);
-       for (const shared_ptr<RowItem> r : row_items)
-               r->paint_mid(p, pp);
-
-       for (const shared_ptr<RowItem> r : row_items)
-               r->paint_fore(p, pp);
-       for (const shared_ptr<TimeItem> t : time_items)
-               t->paint_fore(p, pp);
-
-       p.end();
-}
-
-void Viewport::mouseDoubleClickEvent(QMouseEvent *event)
-{
-       assert(event);
-
-       if (event->buttons() & Qt::LeftButton)
-               view_.zoom(2.0, event->x());
-       else if (event->buttons() & Qt::RightButton)
-               view_.zoom(-2.0, event->x());
-}
-
-void Viewport::wheelEvent(QWheelEvent *event)
-{
-       assert(event);
-
-       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());
-       }
-}
-
-} // namespace view
-} // namespace pv