/*
- * This file is part of the sigrok project.
+ * This file is part of the PulseView project.
*
* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <cassert>
+
#include "view.h"
#include "viewport.h"
-#include "../../sigsession.h"
-#include "../../signal.h"
-
-#include "../../extdef.h"
+#include "signal.h"
+#include "../sigsession.h"
#include <QMouseEvent>
-#include <QTextStream>
-
-#include <math.h>
-
-#include <boost/foreach.hpp>
-using namespace boost;
-using namespace std;
+using std::abs;
+using std::max;
+using std::min;
+using std::shared_ptr;
+using std::vector;
namespace pv {
namespace view {
-const int Viewport::SignalHeight = 50;
-
-const int Viewport::MinorTickSubdivision = 4;
-const int Viewport::ScaleUnits[3] = {1, 2, 5};
-
-const QString Viewport::SIPrefixes[9] =
- {"f", "p", "n", QChar(0x03BC), "m", "", "k", "M", "G"};
-const int Viewport::FirstSIPrefixPower = -15;
-
Viewport::Viewport(View &parent) :
- QGLWidget(&parent),
- _view(parent)
+ QWidget(&parent),
+ _view(parent),
+ _mouse_down_valid(false),
+ _pinch_zoom_active(false)
{
+ setAttribute(Qt::WA_AcceptTouchEvents, true);
+
setMouseTracking(true);
- setAutoFillBackground(false);
-}
+ setAutoFillBackground(true);
+ setBackgroundRole(QPalette::Base);
-int Viewport::get_total_height() const
-{
- int height = 0;
- BOOST_FOREACH(const shared_ptr<Signal> s,
- _view.session().get_signals()) {
- assert(s);
- height += SignalHeight;
- }
+ connect(&_view.session(), SIGNAL(signals_changed()),
+ this, SLOT(on_signals_changed()));
- return height;
-}
+ connect(&_view, SIGNAL(signals_moved()),
+ this, SLOT(on_signals_moved()));
-void Viewport::initializeGL()
-{
+ // Trigger the initial event manually. The default device has signals
+ // which were created before this object came into being
+ on_signals_changed();
}
-void Viewport::resizeGL(int width, int height)
+int Viewport::get_total_height() const
{
- setup_viewport(width, height);
+ int h = 0;
+ const vector< shared_ptr<Trace> > traces(_view.get_traces());
+ for (const shared_ptr<Trace> t : traces) {
+ assert(t);
+ h = max(t->get_v_offset() + View::SignalHeight, h);
+ }
+
+ return h;
}
-void Viewport::paintEvent(QPaintEvent *event)
+void Viewport::paintEvent(QPaintEvent*)
{
- int offset;
-
- const vector< shared_ptr<Signal> > &sigs =
- _view.session().get_signals();
-
- // Prepare for OpenGL rendering
- makeCurrent();
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
+ const vector< shared_ptr<Trace> > traces(_view.get_traces());
- setup_viewport(width(), height());
+ QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
- qglClearColor(Qt::white);
- glClear(GL_COLOR_BUFFER_BIT);
+ if (_view.cursors_shown())
+ _view.cursors().draw_viewport_background(p, rect());
// Plot the signal
- glEnable(GL_SCISSOR_TEST);
- glScissor(View::LabelMarginWidth, 0, width(), height());
- offset = View::RulerHeight - _view.v_offset();
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+ for (const shared_ptr<Trace> t : traces)
{
- assert(s);
-
- const QRect signal_rect(View::LabelMarginWidth, offset,
- width() - View::LabelMarginWidth, SignalHeight);
-
- s->paint(*this, signal_rect, _view.scale(), _view.offset());
-
- offset += SignalHeight;
+ assert(t);
+ t->paint_back(p, 0, width());
}
- glDisable(GL_SCISSOR_TEST);
+ for (const shared_ptr<Trace> t : traces)
+ t->paint_mid(p, 0, width());
- // Prepare for QPainter rendering
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
+ for (const shared_ptr<Trace> t : traces)
+ t->paint_fore(p, 0, width());
- QPainter painter(this);
- painter.setRenderHint(QPainter::Antialiasing);
+ if (_view.cursors_shown())
+ _view.cursors().draw_viewport_foreground(p, rect());
- // Paint the labels
- offset = View::RulerHeight - _view.v_offset();
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
- {
- assert(s);
-
- const QRect label_rect(0, offset,
- View::LabelMarginWidth, SignalHeight);
- s->paint_label(painter, label_rect);
+ p.end();
+}
- offset += SignalHeight;
+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;
}
- // Paint the ruler
- paint_ruler(painter);
-
- painter.end();
+ 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)
- {
+ 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() *
}
}
-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() -
- View::LabelMarginWidth);
-}
-void Viewport::setup_viewport(int width, int height)
-{
- glViewport(0, 0, (GLint)width, (GLint)height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0, width, height, 0, -1, 1);
- glMatrixMode(GL_MODELVIEW);
+ 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());
+ }
}
-void Viewport::paint_ruler(QPainter &p)
+bool Viewport::touchEvent(QTouchEvent *event)
{
- const double MinSpacing = 80;
-
- const double min_period = _view.scale() * MinSpacing;
-
- const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10, order);
+ QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints();
- int unit = 0;
- double tick_period = 0.0f;
-
- do
- {
- tick_period = order_decimal * ScaleUnits[unit++];
- } while(tick_period < min_period && unit < countof(ScaleUnits));
-
- const int prefix = (order - FirstSIPrefixPower) / 3;
- assert(prefix >= 0);
- assert(prefix < countof(SIPrefixes));
+ if (touchPoints.count() != 2) {
+ _pinch_zoom_active = false;
+ return false;
+ }
- const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- Qt::AlignLeft | Qt::AlignTop, "8").height();
+ const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first();
+ const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last();
- // Draw the tick marks
- p.setPen(Qt::black);
+ 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;
+ }
- const double minor_tick_period = tick_period / MinorTickSubdivision;
- const double first_major_division =
- floor(_view.offset() / tick_period);
- const double first_minor_division =
- ceil(_view.offset() / minor_tick_period);
- const double t0 = first_major_division * tick_period;
+ 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);
+ }
- int division = (int)round(first_minor_division -
- first_major_division * MinorTickSubdivision);
- while(1)
- {
- const double t = t0 + division * minor_tick_period;
- const double x = (t - _view.offset()) / _view.scale() +
- View::LabelMarginWidth;
-
- if(x >= width())
- break;
-
- if(division % MinorTickSubdivision == 0)
- {
- // Draw a major tick
- QString s;
- QTextStream ts(&s);
- ts << (t / order_decimal) << SIPrefixes[prefix] << "s";
- p.drawText(x, 0, 0, text_height, Qt::AlignCenter | Qt::AlignTop |
- Qt::TextDontClip, s);
- p.drawLine(x, text_height, x, View::RulerHeight);
- }
- else
- {
- // Draw a minor tick
- p.drawLine(x,
- (text_height + View::RulerHeight) / 2, x,
- View::RulerHeight);
+ 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;
+}
- division++;
+void Viewport::on_signals_changed()
+{
+ const vector< shared_ptr<Trace> > traces(_view.get_traces());
+ for (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