* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "view.h"
-#include "viewport.h"
+#include <cassert>
+#include <cmath>
+#include <algorithm>
+#include <limits>
-#include "signal.h"
-#include "../sigsession.h"
+#include "signal.hpp"
+#include "view.hpp"
+#include "viewitempaintparams.hpp"
+#include "viewport.hpp"
-#include <QMouseEvent>
+#include <pv/session.hpp>
-#include <boost/foreach.hpp>
+#include <QMouseEvent>
-using boost::shared_ptr;
+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) :
- QWidget(&parent),
- _view(parent)
+ ViewWidget(parent),
+ pinch_zoom_active_(false)
{
- setMouseTracking(true);
setAutoFillBackground(true);
setBackgroundRole(QPalette::Base);
+}
- connect(&_view.session(), SIGNAL(signals_changed()),
- this, SLOT(on_signals_changed()));
+shared_ptr<ViewItem> Viewport::get_mouse_over_item(const QPoint &pt)
+{
+ const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset());
+ const vector< shared_ptr<ViewItem> > items(this->items());
+ for (auto i = items.rbegin(); i != items.rend(); i++)
+ if ((*i)->enabled() &&
+ (*i)->hit_box_rect(pp).contains(pt))
+ return *i;
+ return nullptr;
+}
- connect(&_view, SIGNAL(signals_moved()),
- this, SLOT(on_signals_moved()));
+void Viewport::item_hover(const shared_ptr<ViewItem> &item)
+{
+ if (item && item->is_draggable())
+ setCursor(dynamic_pointer_cast<RowItem>(item) ?
+ Qt::SizeVerCursor : Qt::SizeHorCursor);
+ else
+ unsetCursor();
+}
- // Trigger the initial event manually. The default device has signals
- // which were created before this object came into being
- on_signals_changed();
+void Viewport::drag()
+{
+ drag_offset_ = view_.offset();
+ drag_v_offset_ = view_.owner_visual_v_offset();
}
-int Viewport::get_total_height() const
+void Viewport::drag_by(const QPoint &delta)
{
- int h = 0;
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
- BOOST_FOREACH(const shared_ptr<Trace> t, traces) {
- assert(t);
- h = max(t->get_v_offset() + View::SignalHeight, h);
- }
+ if (drag_offset_ == boost::none)
+ return;
- return h;
+ view_.set_scale_offset(view_.scale(),
+ (*drag_offset_ - delta.x() * view_.scale()));
+
+ view_.set_v_offset(-drag_v_offset_ - delta.y());
}
-void Viewport::paintEvent(QPaintEvent*)
+void Viewport::drag_release()
{
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
+ drag_offset_ = boost::none;
+}
- QPainter p(this);
- p.setRenderHint(QPainter::Antialiasing);
+vector< shared_ptr<ViewItem> > Viewport::items()
+{
+ vector< shared_ptr<ViewItem> > items;
+ const std::vector< shared_ptr<ViewItem> > view_items(
+ view_.list_by_type<ViewItem>());
+ copy(view_items.begin(), view_items.end(), back_inserter(items));
+ const vector< shared_ptr<TimeItem> > time_items(view_.time_items());
+ copy(time_items.begin(), time_items.end(), back_inserter(items));
+ return items;
+}
- if (_view.cursors_shown())
- _view.cursors().draw_viewport_background(p, rect());
+bool Viewport::touch_event(QTouchEvent *event)
+{
+ QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints();
- // Plot the signal
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- {
- assert(t);
- t->paint_back(p, 0, width());
+ if (touchPoints.count() != 2) {
+ pinch_zoom_active_ = false;
+ return false;
}
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- t->paint_mid(p, 0, width());
+ const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first();
+ const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last();
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- t->paint_fore(p, 0, width());
+ if (!pinch_zoom_active_ ||
+ (event->touchPointStates() & Qt::TouchPointPressed)) {
+ pinch_offset0_ = (view_.offset() + view_.scale() * touchPoint0.pos().x()).convert_to<double>();
+ pinch_offset1_ = (view_.offset() + view_.scale() * touchPoint1.pos().x()).convert_to<double>();
+ pinch_zoom_active_ = true;
+ }
- if (_view.cursors_shown())
- _view.cursors().draw_viewport_foreground(p, rect());
+ 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);
+ }
- p.end();
+ 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::mousePressEvent(QMouseEvent *event)
+void Viewport::paintEvent(QPaintEvent*)
{
- assert(event);
+ vector< shared_ptr<RowItem> > row_items(view_.list_by_type<RowItem>());
+ assert(none_of(row_items.begin(), row_items.end(),
+ [](const shared_ptr<RowItem> &r) { return !r; }));
- _mouse_down_point = event->pos();
- _mouse_down_offset = _view.offset();
-}
+ stable_sort(row_items.begin(), row_items.end(),
+ [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
+ return a->point(QRect()).y() < b->point(QRect()).y(); });
-void Viewport::mouseMoveEvent(QMouseEvent *event)
-{
- assert(event);
+ 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; }));
- if (event->buttons() & Qt::LeftButton)
- {
- _view.set_scale_offset(_view.scale(),
- _mouse_down_offset +
- (_mouse_down_point - event->pos()).x() *
- _view.scale());
- }
+ 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);
+
+ p.setRenderHint(QPainter::Antialiasing, false);
+ 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());
+ view_.zoom(2.0, event->x());
else if (event->buttons() & Qt::RightButton)
- _view.zoom(-2.0, event->x());
+ 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());
+ if (event->modifiers() & Qt::ControlModifier) {
+ // Vertical scrolling with the control key pressed
+ // is intrepretted as vertical scrolling
+ view_.set_v_offset(-view_.owner_visual_v_offset() -
+ (event->delta() * height()) / (8 * 120));
+ } else {
+ // 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());
+ view_.set_scale_offset(view_.scale(),
+ event->delta() * view_.scale() + view_.offset());
}
}
-void Viewport::on_signals_changed()
-{
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
- BOOST_FOREACH(shared_ptr<Trace> t, traces) {
- assert(t);
- connect(t.get(), SIGNAL(visibility_changed()),
- this, SLOT(update()));
- }
-}
-
-void Viewport::on_signals_moved()
-{
- update();
-}
-
} // namespace view
} // namespace pv
projects / pulseview.git / blobdiff