signaldata.cpp
sigsession.cpp
signal.cpp
- sigview.cpp
- sigviewport.cpp
+ pv/view/view.cpp
+ pv/view/viewport.cpp
)
set(pulseview_HEADERS
mainwindow.h
samplingbar.h
sigsession.h
- sigview.h
- sigviewport.h
+ pv/view/view.h
+ pv/view/viewport.h
)
set(pulseview_FORMS
#include "about.h"
#include "mainwindow.h"
#include "samplingbar.h"
-#include "sigview.h"
+#include "pv/view/view.h"
extern "C" {
/* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
_menu_view->setTitle(QApplication::translate("MainWindow", "&View", 0, QApplication::UnicodeUTF8));
_menu_help->setTitle(QApplication::translate("MainWindow", "&Help", 0, QApplication::UnicodeUTF8));
- _view = new SigView(_session, this);
+ _view = new pv::view::View(_session, this);
_vertical_layout->addWidget(_view);
}
#include "sigsession.h"
class SamplingBar;
-class SigView;
+
+namespace pv {
+namespace view {
+class View;
+}
+}
namespace Ui {
class MainWindow;
private:
SigSession _session;
- SigView *_view;
+ pv::view::View *_view;
QAction *_action_open;
QAction *_action_view_zoom_in;
--- /dev/null
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <assert.h>
+#include <math.h>
+
+#include <boost/foreach.hpp>
+
+#include <QEvent>
+#include <QScrollBar>
+
+#include "view.h"
+#include "viewport.h"
+
+#include "../../logicdata.h"
+#include "../../logicdatasnapshot.h"
+#include "../../sigsession.h"
+
+using namespace boost;
+using namespace std;
+
+namespace pv {
+namespace view {
+
+const double View::MaxScale = 1e9;
+const double View::MinScale = 1e-15;
+
+const int View::LabelMarginWidth = 70;
+const int View::RulerHeight = 30;
+
+View::View(SigSession &session, QWidget *parent) :
+ QAbstractScrollArea(parent),
+ _session(session),
+ _viewport(new Viewport(*this)),
+ _data_length(0),
+ _scale(1e-6),
+ _offset(0),
+ _v_offset(0)
+{
+ connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
+ this, SLOT(h_scroll_value_changed(int)));
+ connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
+ this, SLOT(v_scroll_value_changed(int)));
+ connect(&_session, SIGNAL(data_updated()),
+ this, SLOT(data_updated()));
+ setViewport(_viewport);
+}
+
+double View::scale() const
+{
+ return _scale;
+}
+
+double View::offset() const
+{
+ return _offset;
+}
+
+int View::v_offset() const
+{
+ return _v_offset;
+}
+
+void View::zoom(double steps)
+{
+ zoom(steps, (width() - LabelMarginWidth) / 2);
+}
+
+void View::set_scale_offset(double scale, double offset)
+{
+ _scale = scale;
+ _offset = offset;
+ update_scroll();
+ _viewport->update();
+}
+
+void View::update_scroll()
+{
+ assert(_viewport);
+
+ const QSize areaSize = _viewport->size();
+
+ // Set the horizontal scroll bar
+ double length = 0, offset = 0;
+ const shared_ptr<SignalData> sig_data = _session.get_data();
+ if(sig_data) {
+ length = _data_length /
+ (sig_data->get_samplerate() * _scale);
+ offset = _offset / _scale;
+ }
+
+ horizontalScrollBar()->setPageStep(areaSize.width());
+ horizontalScrollBar()->setRange(0,
+ max((int)(length - areaSize.width()), 0));
+ horizontalScrollBar()->setSliderPosition(offset);
+
+ // Set the vertical scrollbar
+ verticalScrollBar()->setPageStep(areaSize.height());
+ verticalScrollBar()->setRange(0,
+ _viewport->get_total_height() - areaSize.height());
+}
+
+void View::zoom(double steps, int offset)
+{
+ const double cursor_offset = _offset + _scale * offset;
+ _scale *= pow(3.0/2.0, -steps);
+ _scale = max(min(_scale, MaxScale), MinScale);
+ _offset = cursor_offset - _scale * offset;
+ _viewport->update();
+ update_scroll();
+}
+
+bool View::viewportEvent(QEvent *e)
+{
+ switch(e->type()) {
+ case QEvent::Paint:
+ case QEvent::MouseButtonPress:
+ case QEvent::MouseButtonRelease:
+ case QEvent::MouseButtonDblClick:
+ case QEvent::MouseMove:
+ case QEvent::Wheel:
+ return false;
+
+ default:
+ return QAbstractScrollArea::viewportEvent(e);
+ }
+}
+
+void View::resizeEvent(QResizeEvent *e)
+{
+ update_scroll();
+}
+
+void View::h_scroll_value_changed(int value)
+{
+ _offset = _scale * value;
+ _viewport->update();
+}
+
+void View::v_scroll_value_changed(int value)
+{
+ _v_offset = value;
+ _viewport->update();
+}
+
+void View::data_updated()
+{
+ // Get the new data length
+ _data_length = 0;
+ shared_ptr<LogicData> sig_data = _session.get_data();
+ if(sig_data) {
+ deque< shared_ptr<LogicDataSnapshot> > &snapshots =
+ sig_data->get_snapshots();
+ BOOST_FOREACH(shared_ptr<LogicDataSnapshot> s, snapshots)
+ if(s)
+ _data_length = max(_data_length,
+ s->get_sample_count());
+ }
+
+ // Update the scroll bars
+ update_scroll();
+
+ // Repaint the view
+ _viewport->update();
+}
+
+} // namespace view
+} // namespace pv
--- /dev/null
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef PV_VIEW_VIEW_H
+#define PV_VIEW_VIEW_H
+
+#include <stdint.h>
+
+#include <QAbstractScrollArea>
+
+class SigSession;
+
+namespace pv {
+namespace view {
+
+class Viewport;
+
+class View : public QAbstractScrollArea {
+ Q_OBJECT
+
+private:
+ static const double MaxScale;
+ static const double MinScale;
+
+ static const int LabelMarginWidth;
+ static const int RulerHeight;
+
+public:
+ explicit View(SigSession &session, QWidget *parent = 0);
+
+ double scale() const;
+ double offset() const;
+ int v_offset() const;
+
+ void zoom(double steps);
+
+ void set_scale_offset(double scale, double offset);
+
+private:
+ void update_scroll();
+
+ void zoom(double steps, int offset);
+
+private:
+ bool viewportEvent(QEvent *e);
+
+ void resizeEvent(QResizeEvent *e);
+
+private slots:
+ void h_scroll_value_changed(int value);
+ void v_scroll_value_changed(int value);
+
+ void data_updated();
+
+private:
+ SigSession &_session;
+
+ Viewport *_viewport;
+
+ uint64_t _data_length;
+
+ double _scale;
+ double _offset;
+
+ int _v_offset;
+
+ friend class Viewport;
+};
+
+} // namespace view
+} // namespace pv
+
+#endif // PV_VIEW_VIEW_H
--- /dev/null
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "view.h"
+#include "viewport.h"
+
+#include "../../sigsession.h"
+#include "../../signal.h"
+
+#include "../../extdef.h"
+
+#include <QMouseEvent>
+#include <QTextStream>
+
+#include <math.h>
+
+#include <boost/foreach.hpp>
+
+using namespace boost;
+using namespace std;
+
+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)
+{
+ setMouseTracking(true);
+ setAutoFillBackground(false);
+}
+
+int Viewport::get_total_height() const
+{
+ int height = 0;
+ BOOST_FOREACH(const shared_ptr<Signal> s,
+ _view._session.get_signals()) {
+ assert(s);
+ height += SignalHeight;
+ }
+
+ return height;
+}
+
+void Viewport::initializeGL()
+{
+}
+
+void Viewport::resizeGL(int width, int height)
+{
+ setup_viewport(width, height);
+}
+
+void Viewport::paintEvent(QPaintEvent *event)
+{
+ int offset;
+
+ const vector< shared_ptr<Signal> > &sigs =
+ _view._session.get_signals();
+
+ // Prepare for OpenGL rendering
+ makeCurrent();
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+
+ setup_viewport(width(), height());
+
+ qglClearColor(Qt::white);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ // 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)
+ {
+ assert(s);
+
+ const QRect signal_rect(View::LabelMarginWidth, offset,
+ width() - View::LabelMarginWidth, SignalHeight);
+
+ s->paint(*this, signal_rect, _view.scale(), _view.offset());
+
+ offset += SignalHeight;
+ }
+
+ glDisable(GL_SCISSOR_TEST);
+
+ // Prepare for QPainter rendering
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+
+ QPainter painter(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+
+ // 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);
+
+ offset += SignalHeight;
+ }
+
+ // Paint the ruler
+ paint_ruler(painter);
+
+ painter.end();
+}
+
+void Viewport::mousePressEvent(QMouseEvent *event)
+{
+ assert(event);
+
+ _mouse_down_point = event->pos();
+ _mouse_down_offset = _view.offset();
+}
+
+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());
+ }
+}
+
+void Viewport::mouseReleaseEvent(QMouseEvent *event)
+{
+ assert(event);
+}
+
+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);
+}
+
+void Viewport::paint_ruler(QPainter &p)
+{
+ 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);
+
+ 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));
+
+ const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
+ Qt::AlignLeft | Qt::AlignTop, "8").height();
+
+ // Draw the tick marks
+ p.setPen(Qt::black);
+
+ 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;
+
+ 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);
+ }
+
+ division++;
+ }
+}
+
+} // namespace view
+} // namespace pv
--- /dev/null
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef PV_VIEW_VIEWPORT_H
+#define PV_VIEW_VIEWPORT_H
+
+#include <QtOpenGL/QGLWidget>
+#include <QTimer>
+
+class QPainter;
+class QPaintEvent;
+class SigSession;
+
+namespace pv {
+namespace view {
+
+class View;
+
+class Viewport : public QGLWidget
+{
+ Q_OBJECT
+
+private:
+ static const int SignalHeight;
+
+ static const int MinorTickSubdivision;
+ static const int ScaleUnits[3];
+
+ static const QString SIPrefixes[9];
+ static const int FirstSIPrefixPower;
+
+public:
+ explicit Viewport(View &parent);
+
+ int get_total_height() const;
+
+protected:
+ void initializeGL();
+
+ void resizeGL(int width, int height);
+
+ void paintEvent(QPaintEvent *event);
+
+private:
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+ void mouseReleaseEvent(QMouseEvent *event);
+ void wheelEvent(QWheelEvent *event);
+
+private:
+ void setup_viewport(int width, int height);
+
+ void paint_ruler(QPainter &p);
+
+private:
+ View &_view;
+
+ QPoint _mouse_down_point;
+ double _mouse_down_offset;
+};
+
+} // namespace view
+} // namespace pv
+
+#endif // PV_VIEW_VIEWPORT_H
+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <assert.h>
-#include <math.h>
-
-#include <boost/foreach.hpp>
-
-#include <QEvent>
-#include <QScrollBar>
-
-#include "sigview.h"
-
-#include "logicdata.h"
-#include "logicdatasnapshot.h"
-#include "sigsession.h"
-#include "sigviewport.h"
-
-using namespace boost;
-using namespace std;
-
-const double SigView::MaxScale = 1e9;
-const double SigView::MinScale = 1e-15;
-
-const int SigView::LabelMarginWidth = 70;
-const int SigView::RulerHeight = 30;
-
-SigView::SigView(SigSession &session, QWidget *parent) :
- QAbstractScrollArea(parent),
- _session(session),
- _viewport(new SigViewport(*this)),
- _data_length(0),
- _scale(1e-6),
- _offset(0),
- _v_offset(0)
-{
- connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
- this, SLOT(h_scroll_value_changed(int)));
- connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
- this, SLOT(v_scroll_value_changed(int)));
- connect(&_session, SIGNAL(data_updated()),
- this, SLOT(data_updated()));
- setViewport(_viewport);
-}
-
-double SigView::scale() const
-{
- return _scale;
-}
-
-double SigView::offset() const
-{
- return _offset;
-}
-
-int SigView::v_offset() const
-{
- return _v_offset;
-}
-
-void SigView::zoom(double steps)
-{
- zoom(steps, (width() - LabelMarginWidth) / 2);
-}
-
-void SigView::set_scale_offset(double scale, double offset)
-{
- _scale = scale;
- _offset = offset;
- update_scroll();
- _viewport->update();
-}
-
-void SigView::update_scroll()
-{
- assert(_viewport);
-
- const QSize areaSize = _viewport->size();
-
- // Set the horizontal scroll bar
- double length = 0, offset = 0;
- const shared_ptr<SignalData> sig_data = _session.get_data();
- if(sig_data) {
- length = _data_length /
- (sig_data->get_samplerate() * _scale);
- offset = _offset / _scale;
- }
-
- horizontalScrollBar()->setPageStep(areaSize.width());
- horizontalScrollBar()->setRange(0,
- max((int)(length - areaSize.width()), 0));
- horizontalScrollBar()->setSliderPosition(offset);
-
- // Set the vertical scrollbar
- verticalScrollBar()->setPageStep(areaSize.height());
- verticalScrollBar()->setRange(0,
- _viewport->get_total_height() - areaSize.height());
-}
-
-void SigView::zoom(double steps, int offset)
-{
- const double cursor_offset = _offset + _scale * offset;
- _scale *= pow(3.0/2.0, -steps);
- _scale = max(min(_scale, MaxScale), MinScale);
- _offset = cursor_offset - _scale * offset;
- _viewport->update();
- update_scroll();
-}
-
-bool SigView::viewportEvent(QEvent *e)
-{
- switch(e->type()) {
- case QEvent::Paint:
- case QEvent::MouseButtonPress:
- case QEvent::MouseButtonRelease:
- case QEvent::MouseButtonDblClick:
- case QEvent::MouseMove:
- case QEvent::Wheel:
- return false;
-
- default:
- return QAbstractScrollArea::viewportEvent(e);
- }
-}
-
-void SigView::resizeEvent(QResizeEvent *e)
-{
- update_scroll();
-}
-
-void SigView::h_scroll_value_changed(int value)
-{
- _offset = _scale * value;
- _viewport->update();
-}
-
-void SigView::v_scroll_value_changed(int value)
-{
- _v_offset = value;
- _viewport->update();
-}
-
-void SigView::data_updated()
-{
- // Get the new data length
- _data_length = 0;
- shared_ptr<LogicData> sig_data = _session.get_data();
- if(sig_data) {
- deque< shared_ptr<LogicDataSnapshot> > &snapshots =
- sig_data->get_snapshots();
- BOOST_FOREACH(shared_ptr<LogicDataSnapshot> s, snapshots)
- if(s)
- _data_length = max(_data_length,
- s->get_sample_count());
- }
-
- // Update the scroll bars
- update_scroll();
-
- // Repaint the view
- _viewport->update();
-}
+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef SIGVIEW_H
-#define SIGVIEW_H
-
-#include <stdint.h>
-
-#include <QAbstractScrollArea>
-
-class SigSession;
-class SigViewport;
-
-class SigView : public QAbstractScrollArea {
- Q_OBJECT
-
-private:
- static const double MaxScale;
- static const double MinScale;
-
- static const int LabelMarginWidth;
- static const int RulerHeight;
-
-public:
- explicit SigView(SigSession &session, QWidget *parent = 0);
-
- double scale() const;
- double offset() const;
- int v_offset() const;
-
- void zoom(double steps);
-
- void set_scale_offset(double scale, double offset);
-
-private:
- void update_scroll();
-
- void zoom(double steps, int offset);
-
-private:
- bool viewportEvent(QEvent *e);
-
- void resizeEvent(QResizeEvent *e);
-
-private slots:
- void h_scroll_value_changed(int value);
- void v_scroll_value_changed(int value);
-
- void data_updated();
-
-private:
- SigSession &_session;
-
- SigViewport *_viewport;
-
- uint64_t _data_length;
-
- double _scale;
- double _offset;
-
- int _v_offset;
-
- friend class SigViewport;
-};
-
-#endif // SIGVIEW_H
+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "sigviewport.h"
-
-#include "sigsession.h"
-#include "signal.h"
-#include "sigview.h"
-
-#include "extdef.h"
-
-#include <QMouseEvent>
-#include <QTextStream>
-
-#include <math.h>
-
-#include <boost/foreach.hpp>
-
-using namespace boost;
-using namespace std;
-
-const int SigViewport::SignalHeight = 50;
-
-const int SigViewport::MinorTickSubdivision = 4;
-const int SigViewport::ScaleUnits[3] = {1, 2, 5};
-
-const QString SigViewport::SIPrefixes[9] =
- {"f", "p", "n", QChar(0x03BC), "m", "", "k", "M", "G"};
-const int SigViewport::FirstSIPrefixPower = -15;
-
-SigViewport::SigViewport(SigView &parent) :
- QGLWidget(&parent),
- _view(parent)
-{
- setMouseTracking(true);
- setAutoFillBackground(false);
-}
-
-int SigViewport::get_total_height() const
-{
- int height = 0;
- BOOST_FOREACH(const shared_ptr<Signal> s,
- _view._session.get_signals()) {
- assert(s);
- height += SignalHeight;
- }
-
- return height;
-}
-
-void SigViewport::initializeGL()
-{
-}
-
-void SigViewport::resizeGL(int width, int height)
-{
- setup_viewport(width, height);
-}
-
-void SigViewport::paintEvent(QPaintEvent *event)
-{
- int offset;
-
- const vector< shared_ptr<Signal> > &sigs =
- _view._session.get_signals();
-
- // Prepare for OpenGL rendering
- makeCurrent();
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
-
- setup_viewport(width(), height());
-
- qglClearColor(Qt::white);
- glClear(GL_COLOR_BUFFER_BIT);
-
- // Plot the signal
- glEnable(GL_SCISSOR_TEST);
- glScissor(SigView::LabelMarginWidth, 0, width(), height());
- offset = SigView::RulerHeight - _view.v_offset();
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
- {
- assert(s);
-
- const QRect signal_rect(SigView::LabelMarginWidth, offset,
- width() - SigView::LabelMarginWidth, SignalHeight);
-
- s->paint(*this, signal_rect, _view.scale(), _view.offset());
-
- offset += SignalHeight;
- }
-
- glDisable(GL_SCISSOR_TEST);
-
- // Prepare for QPainter rendering
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
-
- QPainter painter(this);
- painter.setRenderHint(QPainter::Antialiasing);
-
- // Paint the labels
- offset = SigView::RulerHeight - _view.v_offset();
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
- {
- assert(s);
-
- const QRect label_rect(0, offset,
- SigView::LabelMarginWidth, SignalHeight);
- s->paint_label(painter, label_rect);
-
- offset += SignalHeight;
- }
-
- // Paint the ruler
- paint_ruler(painter);
-
- painter.end();
-}
-
-void SigViewport::mousePressEvent(QMouseEvent *event)
-{
- assert(event);
-
- _mouse_down_point = event->pos();
- _mouse_down_offset = _view.offset();
-}
-
-void SigViewport::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());
- }
-}
-
-void SigViewport::mouseReleaseEvent(QMouseEvent *event)
-{
- assert(event);
-}
-
-void SigViewport::wheelEvent(QWheelEvent *event)
-{
- assert(event);
- _view.zoom(event->delta() / 120, event->x() -
- SigView::LabelMarginWidth);
-}
-
-void SigViewport::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);
-}
-
-void SigViewport::paint_ruler(QPainter &p)
-{
- 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);
-
- 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));
-
- const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- Qt::AlignLeft | Qt::AlignTop, "8").height();
-
- // Draw the tick marks
- p.setPen(Qt::black);
-
- 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;
-
- 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() +
- SigView::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, SigView::RulerHeight);
- }
- else
- {
- // Draw a minor tick
- p.drawLine(x,
- (text_height + SigView::RulerHeight) / 2, x,
- SigView::RulerHeight);
- }
-
- division++;
- }
-}
+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef SIGVIEWPORT_H
-#define SIGVIEWPORT_H
-
-#include <QtOpenGL/QGLWidget>
-#include <QTimer>
-
-class QPainter;
-class QPaintEvent;
-class SigSession;
-class SigView;
-
-class SigViewport : public QGLWidget
-{
- Q_OBJECT
-
-private:
- static const int SignalHeight;
-
- static const int MinorTickSubdivision;
- static const int ScaleUnits[3];
-
- static const QString SIPrefixes[9];
- static const int FirstSIPrefixPower;
-
-public:
- explicit SigViewport(SigView &parent);
-
- int get_total_height() const;
-
-protected:
- void initializeGL();
-
- void resizeGL(int width, int height);
-
- void paintEvent(QPaintEvent *event);
-
-private:
- void mousePressEvent(QMouseEvent *event);
- void mouseMoveEvent(QMouseEvent *event);
- void mouseReleaseEvent(QMouseEvent *event);
- void wheelEvent(QWheelEvent *event);
-
-private:
- void setup_viewport(int width, int height);
-
- void paint_ruler(QPainter &p);
-
-private:
- SigView &_view;
-
- QPoint _mouse_down_point;
- double _mouse_down_offset;
-};
-
-#endif // SIGVIEWPORT_H
projects / pulseview.git / commitdiff