X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fviewport.cpp;h=a4b6680a7fe57bd02ed6b5b2e59888266a4d2552;hp=7108638588b054a42562b556984236302704c6a9;hb=32c589f0f6a2218e81d4ee984335c4a88c79b35f;hpb=1ef49ddd04f44a4369403fbab19ed235483e2975 diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp index 71086385..a4b6680a 100644 --- a/pv/view/viewport.cpp +++ b/pv/view/viewport.cpp @@ -20,227 +20,203 @@ #include #include +#include +#include -#include "view.h" -#include "viewport.h" +#include "signal.hpp" +#include "view.hpp" +#include "viewitempaintparams.hpp" +#include "viewport.hpp" -#include "signal.h" -#include "../sigsession.h" +#include #include 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), - _mouse_down_valid(false), - _pinch_zoom_active(false) + ViewWidget(parent), + pinch_zoom_active_(false) { - setAttribute(Qt::WA_AcceptTouchEvents, true); - - setMouseTracking(true); setAutoFillBackground(true); setBackgroundRole(QPalette::Base); - - connect(&_view.session(), SIGNAL(signals_changed()), - this, SLOT(on_signals_changed())); - - 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 -{ - int h = 0; - const vector< shared_ptr > traces(_view.get_traces()); - for (const shared_ptr t : traces) { - assert(t); - h = max(t->v_offset() + View::SignalHeight, h); - } - - return h; } -void Viewport::paintEvent(QPaintEvent*) +shared_ptr Viewport::get_mouse_over_item(const QPoint &pt) { - const vector< shared_ptr > traces(_view.get_traces()); - - QPainter p(this); - p.setRenderHint(QPainter::Antialiasing); - - if (_view.cursors_shown()) - _view.cursors().draw_viewport_background(p, rect()); - - // Plot the signal - for (const shared_ptr t : traces) - { - assert(t); - t->paint_back(p, 0, width()); - } - - for (const shared_ptr t : traces) - t->paint_mid(p, 0, width()); - - for (const shared_ptr t : traces) - t->paint_fore(p, 0, width()); - - if (_view.cursors_shown()) - _view.cursors().draw_viewport_foreground(p, rect()); - - p.end(); + const vector< shared_ptr > 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; } -bool Viewport::event(QEvent *event) +void Viewport::item_hover(const shared_ptr &item) { - switch (event->type()) { - case QEvent::TouchBegin: - case QEvent::TouchUpdate: - case QEvent::TouchEnd: - if (touchEvent(static_cast(event))) - return true; - break; - - default: - break; - } - - return QWidget::event(event); + if (item) + setCursor(dynamic_pointer_cast(item) ? + Qt::SizeVerCursor : Qt::SizeHorCursor); + else + unsetCursor(); } -void Viewport::mousePressEvent(QMouseEvent *event) +void Viewport::drag() { - assert(event); - - if (event->button() == Qt::LeftButton) { - _mouse_down_point = event->pos(); - _mouse_down_offset = _view.offset(); - _mouse_down_valid = true; - } + drag_offset_ = view_.offset(); } -void Viewport::mouseReleaseEvent(QMouseEvent *event) +void Viewport::drag_by(const QPoint &delta) { - assert(event); + if (drag_offset_ == boost::none) + return; - if (event->button() == Qt::LeftButton) - _mouse_down_valid = false; + view_.set_scale_offset(view_.scale(), + (*drag_offset_ - delta.x() * view_.scale())); } -void Viewport::mouseMoveEvent(QMouseEvent *event) +void Viewport::drag_release() { - 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; - } - - _view.set_scale_offset(_view.scale(), - _mouse_down_offset + - (_mouse_down_point - event->pos()).x() * - _view.scale()); - } + drag_offset_ = boost::none; } -void Viewport::mouseDoubleClickEvent(QMouseEvent *event) +vector< shared_ptr > Viewport::items() { - 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()); + vector< shared_ptr > items(view_.begin(), view_.end()); + const vector< shared_ptr > time_items(view_.time_items()); + copy(time_items.begin(), time_items.end(), back_inserter(items)); + return items; } -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()); - } -} - -bool Viewport::touchEvent(QTouchEvent *event) +bool Viewport::touch_event(QTouchEvent *event) { QList touchPoints = event->touchPoints(); if (touchPoints.count() != 2) { - _pinch_zoom_active = false; + pinch_zoom_active_ = false; return false; } const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first(); const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last(); - if (!_pinch_zoom_active || + 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; + pinch_offset0_ = (view_.offset() + view_.scale() * touchPoint0.pos().x()).convert_to(); + pinch_offset1_ = (view_.offset() + view_.scale() * touchPoint1.pos().x()).convert_to(); + 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; - double offset = _pinch_offset0 - touchPoint0.pos().x() * 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); + view_.set_scale_offset(scale, offset); } if (event->touchPointStates() & Qt::TouchPointReleased) { - _pinch_zoom_active = false; + pinch_zoom_active_ = false; 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; + mouse_down_point_ = touchPoint0.pos().toPoint(); + drag(); } } return true; } -void Viewport::on_signals_changed() +void Viewport::paintEvent(QPaintEvent*) { - const vector< shared_ptr > traces(_view.get_traces()); - for (shared_ptr t : traces) { - assert(t); - connect(t.get(), SIGNAL(visibility_changed()), - this, SLOT(update())); - } + vector< shared_ptr > row_items(view_.begin(), view_.end()); + assert(none_of(row_items.begin(), row_items.end(), + [](const shared_ptr &r) { return !r; })); + + stable_sort(row_items.begin(), row_items.end(), + [](const shared_ptr &a, const shared_ptr &b) { + return a->visual_v_offset() < b->visual_v_offset(); }); + + const vector< shared_ptr > time_items(view_.time_items()); + assert(none_of(time_items.begin(), time_items.end(), + [](const shared_ptr &t) { return !t; })); + + QPainter p(this); + p.setRenderHint(QPainter::Antialiasing); + + const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset()); + + for (const shared_ptr t : time_items) + t->paint_back(p, pp); + for (const shared_ptr r : row_items) + r->paint_back(p, pp); + + for (const shared_ptr t : time_items) + t->paint_mid(p, pp); + for (const shared_ptr r : row_items) + r->paint_mid(p, pp); + + p.setRenderHint(QPainter::Antialiasing, false); + + for (const shared_ptr r : row_items) + r->paint_fore(p, pp); + for (const shared_ptr 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::on_signals_moved() +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