X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fviewport.cpp;h=c33af44b6ccc423f3f8dc13d579e0268e7aad3ee;hp=593edefe99beca839a943f1b9ba79977de2231a6;hb=f15bb3bc4f964eaafdd4c46f29f69ef74572baee;hpb=64b60583ff73db2bd9458817276687b030fe48e1 diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp index 593edefe..c33af44b 100644 --- a/pv/view/viewport.cpp +++ b/pv/view/viewport.cpp @@ -1,5 +1,5 @@ /* - * This file is part of the sigrok project. + * This file is part of the PulseView project. * * Copyright (C) 2012 Joel Holdsworth * @@ -18,97 +18,202 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include "view.h" -#include "viewport.h" +#include +#include +#include -#include "../../sigsession.h" -#include "../../signal.h" +#include "signal.hpp" +#include "view.hpp" +#include "viewitempaintparams.hpp" +#include "viewport.hpp" -#include +#include -#include +#include -using namespace boost; -using namespace std; +using std::abs; +using std::max; +using std::min; +using std::none_of; +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), + mouse_down_valid_(false), + pinch_zoom_active_(false) { - setMouseTracking(true); + setAttribute(Qt::WA_AcceptTouchEvents, true); + setAutoFillBackground(true); setBackgroundRole(QPalette::Base); } -int Viewport::get_total_height() const +void Viewport::paintEvent(QPaintEvent*) { - int height = 0; - BOOST_FOREACH(const shared_ptr s, - _view.session().get_signals()) { - assert(s); - height += View::SignalHeight; - } + vector< shared_ptr > row_items(view_.begin(), view_.end()); + assert(none_of(row_items.begin(), row_items.end(), + [](const shared_ptr &r) { return !r; })); - return height; -} + 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(); }); -void Viewport::paintEvent(QPaintEvent *event) -{ - const vector< shared_ptr > &sigs = - _view.session().get_signals(); + 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); - // Plot the signal - int offset = -_view.v_offset(); - BOOST_FOREACH(const shared_ptr s, sigs) - { - assert(s); + const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset()); - const QRect signal_rect(0, offset, - width(), View::SignalHeight); + for (const shared_ptr t : time_items) + t->paint_back(p, pp); + for (const shared_ptr r : row_items) + r->paint_back(p, pp); - s->paint(p, signal_rect, _view.scale(), _view.offset()); + for (const shared_ptr t : time_items) + t->paint_mid(p, pp); + for (const shared_ptr r : row_items) + r->paint_mid(p, pp); - offset += View::SignalHeight; - } + 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(); } +bool Viewport::event(QEvent *event) +{ + 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); +} + void Viewport::mousePressEvent(QMouseEvent *event) { assert(event); - _mouse_down_point = event->pos(); - _mouse_down_offset = _view.offset(); + if (event->button() == Qt::LeftButton) { + mouse_down_point_ = event->pos(); + mouse_down_offset_ = view_.offset(); + mouse_down_valid_ = true; + } +} + +void Viewport::mouseReleaseEvent(QMouseEvent *event) +{ + assert(event); + + if (event->button() == Qt::LeftButton) + mouse_down_valid_ = false; } 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()); + 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()); } } -void Viewport::mouseReleaseEvent(QMouseEvent *event) +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); - _view.zoom(event->delta() / 120, event->x()); + + 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) +{ + QList 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) { + double scale = (pinch_offset1_ - pinch_offset0_) / w; + if (scale < 0) + scale = -scale; + 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 + mouse_down_valid_ = false; + } 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; + } + } + + return true; } } // namespace view