#include <cassert>
#include <cmath>
#include <algorithm>
+#include <limits>
#include "signal.hpp"
#include "view.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;
Viewport::Viewport(View &parent) :
ViewWidget(parent),
- mouse_down_valid_(false),
pinch_zoom_active_(false)
{
- setAttribute(Qt::WA_AcceptTouchEvents, true);
-
setAutoFillBackground(true);
setBackgroundRole(QPalette::Base);
-
- connect(&view_, SIGNAL(signals_moved()),
- this, SLOT(on_signals_moved()));
}
-void Viewport::paintEvent(QPaintEvent*)
+shared_ptr<ViewItem> Viewport::get_mouse_over_item(const QPoint &pt)
{
- 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();
-}
-
-bool Viewport::event(QEvent *event)
-{
- switch (event->type()) {
- case QEvent::TouchBegin:
- case QEvent::TouchUpdate:
- case QEvent::TouchEnd:
- if (touchEvent(static_cast<QTouchEvent *>(event)))
- return true;
- break;
-
- default:
- break;
- }
-
- return QWidget::event(event);
+ 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;
}
-void Viewport::mousePressEvent(QMouseEvent *event)
+void Viewport::item_hover(const shared_ptr<ViewItem> &item)
{
- assert(event);
-
- if (event->button() == Qt::LeftButton) {
- mouse_down_point_ = event->pos();
- mouse_down_offset_ = view_.offset();
- mouse_down_valid_ = true;
- }
+ if (item)
+ setCursor(dynamic_pointer_cast<RowItem>(item) ?
+ Qt::SizeVerCursor : Qt::SizeHorCursor);
+ else
+ unsetCursor();
}
-void Viewport::mouseReleaseEvent(QMouseEvent *event)
+void Viewport::drag()
{
- assert(event);
-
- if (event->button() == Qt::LeftButton)
- mouse_down_valid_ = false;
+ drag_offset_ = view_.offset();
}
-void Viewport::mouseMoveEvent(QMouseEvent *event)
+void Viewport::drag_by(const QPoint &delta)
{
- assert(event);
-
- if (event->buttons() & Qt::LeftButton) {
- if (!mouse_down_valid_) {
- mouse_down_point_ = event->pos();
- mouse_down_offset_ = view_.offset();
- mouse_down_valid_ = true;
- }
+ if (drag_offset_ == boost::none)
+ return;
- view_.set_scale_offset(view_.scale(),
- mouse_down_offset_ +
- (mouse_down_point_ - event->pos()).x() *
- view_.scale());
- }
+ view_.set_scale_offset(view_.scale(),
+ (*drag_offset_ - delta.x() * view_.scale()));
}
-void Viewport::mouseDoubleClickEvent(QMouseEvent *event)
+void Viewport::drag_release()
{
- 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());
+ drag_offset_ = boost::none;
}
-void Viewport::wheelEvent(QWheelEvent *event)
+vector< shared_ptr<ViewItem> > Viewport::items()
{
- 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());
- }
+ 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;
}
-bool Viewport::touchEvent(QTouchEvent *event)
+bool Viewport::touch_event(QTouchEvent *event)
{
QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints();
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_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;
}
double w = touchPoint1.pos().x() - touchPoint0.pos().x();
if (abs(w) >= 1.0) {
- double scale = (pinch_offset1_ - pinch_offset0_) / w;
- if (scale < 0)
- scale = -scale;
+ 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 (touchPoint0.state() & Qt::TouchPointReleased) {
// Primary touch released
- mouse_down_valid_ = false;
+ 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();
- mouse_down_offset_ = view_.offset();
- mouse_down_valid_ = true;
+ drag();
}
}
return true;
}
-void Viewport::on_signals_moved()
+void Viewport::paintEvent(QPaintEvent*)
+{
+ 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; }));
+
+ 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(); });
+
+ 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);
+
+ p.setRenderHint(QPainter::Antialiasing, false);
+
+ 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 *e)
{
- update();
+ assert(e);
+
+ if (e->orientation() == Qt::Vertical)
+ {
+ if (e->modifiers() & Qt::ControlModifier) {
+ // Vertical scrolling with the control key pressed
+ // is intrepretted as vertical scrolling
+ view_.set_v_offset(-view_.owner_visual_v_offset() -
+ (e->delta() * height()) / (8 * 120));
+ } else {
+ // Vertical scrolling is interpreted as zooming in/out
+ view_.zoom(e->delta() / 120, e->x());
+ }
+ }
+ else if (e->orientation() == Qt::Horizontal)
+ {
+ // Horizontal scrolling is interpreted as moving left/right
+ view_.set_scale_offset(view_.scale(),
+ e->delta() * view_.scale() + view_.offset());
+ }
}
} // namespace view
projects / pulseview.git / blobdiff