[pulseview.git] / pv / view / decodetrace.cpp

/*
 * This file is part of the PulseView 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
 */

extern "C" {
#include <libsigrokdecode/libsigrokdecode.h>
}

#include <extdef.h>

#include <boost/foreach.hpp>

#include <QAction>
#include <QApplication>
#include <QComboBox>
#include <QFormLayout>
#include <QLabel>
#include <QMenu>
#include <QPushButton>

#include "decodetrace.h"

#include <pv/sigsession.h>
#include <pv/data/decoderstack.h>
#include <pv/data/decode/decoder.h>
#include <pv/data/logic.h>
#include <pv/data/logicsnapshot.h>
#include <pv/data/decode/annotation.h>
#include <pv/view/logicsignal.h>
#include <pv/view/view.h>
#include <pv/widgets/decodergroupbox.h>
#include <pv/widgets/decodermenu.h>

using boost::dynamic_pointer_cast;
using boost::shared_ptr;
using std::list;
using std::max;
using std::map;
using std::min;
using std::vector;

namespace pv {
namespace view {

const QColor DecodeTrace::DecodeColours[4] = {
	QColor(0xEF, 0x29, 0x29),	// Red
	QColor(0xFC, 0xE9, 0x4F),	// Yellow
	QColor(0x8A, 0xE2, 0x34),	// Green
	QColor(0x72, 0x9F, 0xCF)	// Blue
};

const QColor DecodeTrace::ErrorBgColour = QColor(0xEF, 0x29, 0x29);
const QColor DecodeTrace::NoDecodeColour = QColor(0x88, 0x8A, 0x85);

const double DecodeTrace::EndCapWidth = 5;
const int DecodeTrace::DrawPadding = 100;

const QColor DecodeTrace::Colours[7] = {
	QColor(0xFC, 0xE9, 0x4F),	// Light Butter
	QColor(0xFC, 0xAF, 0x3E),	// Light Orange
	QColor(0xE9, 0xB9, 0x6E),	// Light Chocolate
	QColor(0x8A, 0xE2, 0x34),	// Light Green
	QColor(0x72, 0x9F, 0xCF),	// Light Blue
	QColor(0xAD, 0x7F, 0xA8),	// Light Plum
	QColor(0xEF, 0x29, 0x29)	// Light Red
};

DecodeTrace::DecodeTrace(pv::SigSession &session,
	boost::shared_ptr<pv::data::DecoderStack> decoder_stack, int index) :
	Trace(session, QString::fromUtf8(
		decoder_stack->stack().front()->decoder()->name)),
	_decoder_stack(decoder_stack),
	_delete_mapper(this)
{
	assert(_decoder_stack);

	_colour = DecodeColours[index % countof(DecodeColours)];

	connect(_decoder_stack.get(), SIGNAL(new_decode_data()),
		this, SLOT(on_new_decode_data()));
	connect(&_delete_mapper, SIGNAL(mapped(int)),
		this, SLOT(on_delete_decoder(int)));
}

bool DecodeTrace::enabled() const
{
	return true;
}

const boost::shared_ptr<pv::data::DecoderStack>& DecodeTrace::decoder() const
{
	return _decoder_stack;
}

void DecodeTrace::set_view(pv::view::View *view)
{
	assert(view);
	Trace::set_view(view);
}

void DecodeTrace::paint_back(QPainter &p, int left, int right)
{
	Trace::paint_back(p, left, right);
	paint_axis(p, get_y(), left, right);
}

void DecodeTrace::paint_mid(QPainter &p, int left, int right)
{
	using namespace pv::data::decode;

	const double scale = _view->scale();
	assert(scale > 0);

	double samplerate = _decoder_stack->samplerate();

	// Show sample rate as 1Hz when it is unknown
	if (samplerate == 0.0)
		samplerate = 1.0;

	const double pixels_offset = (_view->offset() -
		_decoder_stack->get_start_time()) / scale;
	const double samples_per_pixel = samplerate * scale;

	const uint64_t start_sample = (uint64_t)max((left + pixels_offset) *
		samples_per_pixel, 0.0);
	const uint64_t end_sample = (uint64_t)max((right + pixels_offset) *
		samples_per_pixel, 0.0);

	QFontMetrics m(QApplication::font());
	const int text_height =  m.boundingRect(QRect(), 0, "Tg").height();
	const int annotation_height = (text_height * 5) / 4;
	const int row_height = (text_height * 6) / 4;

	assert(_decoder_stack);
	const QString err = _decoder_stack->error_message();
	if (!err.isEmpty())
	{
		draw_error(p, err, left, right);
		draw_unresolved_period(p, annotation_height, left, right,
			samples_per_pixel, pixels_offset);
		return;
	}

	// Iterate through the rows
	assert(_view);
	int y = get_y();

	assert(_decoder_stack);

	const vector<Row> rows(_decoder_stack->get_rows());
	BOOST_FOREACH (const Row &row, rows)
	{
		vector<Annotation> annotations;
		_decoder_stack->get_annotation_subset(annotations, row,
			start_sample, end_sample);
		if (!annotations.empty()) {
			BOOST_FOREACH(const Annotation &a, annotations)
				draw_annotation(a, p, get_text_colour(),
					annotation_height, left, right,
					samples_per_pixel, pixels_offset, y);
			y += row_height;
		}
	}

	// Draw the hatching
	draw_unresolved_period(p, annotation_height, left, right,
		samples_per_pixel, pixels_offset);
}

void DecodeTrace::populate_popup_form(QWidget *parent, QFormLayout *form)
{
	using pv::data::decode::Decoder;

	assert(form);
	assert(parent);
	assert(_decoder_stack);

	// Add the standard options
	Trace::populate_popup_form(parent, form);

	// Add the decoder options
	_bindings.clear();
	_probe_selectors.clear();

	const list< shared_ptr<Decoder> >& stack = _decoder_stack->stack();

	if (stack.empty())
	{
		QLabel *const l = new QLabel(
			tr("<p><i>No decoders in the stack</i></p>"));
		l->setAlignment(Qt::AlignCenter);
		form->addRow(l);
	}
	else
	{
		list< shared_ptr<Decoder> >::const_iterator iter =
			stack.begin();
		for (int i = 0; i < (int)stack.size(); i++, iter++) {
			shared_ptr<Decoder> dec(*iter);
			create_decoder_form(i, dec, parent, form);
		}

		form->addRow(new QLabel(
			tr("<i>* Required Probes</i>"), parent));
	}

	// Add stacking button
	pv::widgets::DecoderMenu *const decoder_menu =
		new pv::widgets::DecoderMenu(parent);
	connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)),
		this, SLOT(on_stack_decoder(srd_decoder*)));

	QPushButton *const stack_button =
		new QPushButton(tr("Stack Decoder"), parent);
	stack_button->setMenu(decoder_menu);

	QHBoxLayout *stack_button_box = new QHBoxLayout;
	stack_button_box->addWidget(stack_button, 0, Qt::AlignRight);
	form->addRow(stack_button_box);
}

QMenu* DecodeTrace::create_context_menu(QWidget *parent)
{
	QMenu *const menu = Trace::create_context_menu(parent);

	menu->addSeparator();

	QAction *const del = new QAction(tr("Delete"), this);
	del->setShortcuts(QKeySequence::Delete);
	connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
	menu->addAction(del);

	return menu;
}

void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a, QPainter &p,
	QColor text_color, int h, int left, int right, double samples_per_pixel,
	double pixels_offset, int y) const
{
	const double start = a.start_sample() / samples_per_pixel -
		pixels_offset;
	const double end = a.end_sample() / samples_per_pixel -
		pixels_offset;
	const QColor fill = Colours[(a.format() * (countof(Colours) / 2 + 1)) %
		countof(Colours)];
	const QColor outline(fill.darker());

	if (start > right + DrawPadding || end < left - DrawPadding)
		return;

	if (a.start_sample() == a.end_sample())
		draw_instant(a, p, fill, outline, text_color, h,
			start, y);
	else
		draw_range(a, p, fill, outline, text_color, h,
			start, end, y);
}

void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
	QColor fill, QColor outline, QColor text_color, int h, double x, int y) const
{
	const QString text = a.annotations().empty() ?
		QString() : a.annotations().back();
	const double w = min(p.boundingRect(QRectF(), 0, text).width(),
		0.0) + h;
	const QRectF rect(x - w / 2, y - h / 2, w, h);

	p.setPen(outline);
	p.setBrush(fill);
	p.drawRoundedRect(rect, h / 2, h / 2);

	p.setPen(text_color);
	p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text);
}

void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
	QColor fill, QColor outline, QColor text_color, int h, double start,
	double end, int y) const
{
	const double top = y + .5 - h / 2;
	const double bottom = y + .5 + h / 2;
	const vector<QString> annotations = a.annotations();

	p.setPen(outline);
	p.setBrush(fill);

	// If the two ends are within 1 pixel, draw a vertical line
	if (start + 1.0 > end)
	{
		p.drawLine(QPointF(start, top), QPointF(start, bottom));
		return;
	}

	const double cap_width = min((end - start) / 4, EndCapWidth);

	QPointF pts[] = {
		QPointF(start, y + .5f),
		QPointF(start + cap_width, top),
		QPointF(end - cap_width, top),
		QPointF(end, y + .5f),
		QPointF(end - cap_width, bottom),
		QPointF(start + cap_width, bottom)
	};

	p.drawConvexPolygon(pts, countof(pts));

	if (annotations.empty())
		return;

	QRectF rect(start + cap_width, y - h / 2,
		end - start - cap_width * 2, h);
	p.setPen(text_color);

	// Try to find an annotation that will fit
	QString best_annotation;
	int best_width = 0;

	BOOST_FOREACH(const QString &a, annotations) {
		const int w = p.boundingRect(QRectF(), 0, a).width();
		if (w <= rect.width() && w > best_width)
			best_annotation = a, best_width = w;
	}

	if (best_annotation.isEmpty())
		best_annotation = annotations.back();

	// If not ellide the last in the list
	p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
		best_annotation, Qt::ElideRight, rect.width()));
}

void DecodeTrace::draw_error(QPainter &p, const QString &message,
	int left, int right)
{
	const int y = get_y();

	p.setPen(ErrorBgColour.darker());
	p.setBrush(ErrorBgColour);

	const QRectF bounding_rect =
		QRectF(left, INT_MIN / 2 + y, right - left, INT_MAX);
	const QRectF text_rect = p.boundingRect(bounding_rect,
		Qt::AlignCenter, message);
	const float r = text_rect.height() / 4;

	p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r,
		Qt::AbsoluteSize);

	p.setPen(get_text_colour());
	p.drawText(text_rect, message);
}

void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left,
	int right, double samples_per_pixel, double pixels_offset) 
{
	using namespace pv::data;
	using pv::data::decode::Decoder;

	assert(_decoder_stack);	

	shared_ptr<Logic> data;
	shared_ptr<LogicSignal> logic_signal;

	const list< shared_ptr<Decoder> > &stack = _decoder_stack->stack();

	// We get the logic data of the first probe in the list.
	// This works because we are currently assuming all
	// LogicSignals have the same data/snapshot
	BOOST_FOREACH (const shared_ptr<Decoder> &dec, stack)
		if (dec && !dec->probes().empty() &&
			((logic_signal = (*dec->probes().begin()).second)) &&
			((data = logic_signal->logic_data())))
			break;

	if (!data || data->get_snapshots().empty())
		return;

	const shared_ptr<LogicSnapshot> snapshot =
		data->get_snapshots().front();
	assert(snapshot);
	const int64_t sample_count = (int64_t)snapshot->get_sample_count();
	if (sample_count == 0)
		return;

	const int64_t samples_decoded = _decoder_stack->samples_decoded();
	if (sample_count == samples_decoded)
		return;

	const int y = get_y();
	const double start = max(samples_decoded /
		samples_per_pixel - pixels_offset, left - 1.0);
	const double end = min(sample_count / samples_per_pixel -
		pixels_offset, right + 1.0);
	const QRectF no_decode_rect(start, y - h/2 + 0.5, end - start, h);

	p.setPen(QPen(Qt::NoPen));
	p.setBrush(Qt::white);
	p.drawRect(no_decode_rect);

	p.setPen(NoDecodeColour);
	p.setBrush(QBrush(NoDecodeColour, Qt::Dense6Pattern));
	p.drawRect(no_decode_rect);
}

void DecodeTrace::create_decoder_form(int index,
	shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
	QFormLayout *form)
{
	const GSList *probe;

	assert(dec);
	const srd_decoder *const decoder = dec->decoder();
	assert(decoder);

	pv::widgets::DecoderGroupBox *const group =
		new pv::widgets::DecoderGroupBox(
			QString::fromUtf8(decoder->name));

	_delete_mapper.setMapping(group, index);
	connect(group, SIGNAL(delete_decoder()), &_delete_mapper, SLOT(map()));

	QFormLayout *const decoder_form = new QFormLayout;
	group->add_layout(decoder_form);

	// Add the mandatory probes
	for(probe = decoder->probes; probe; probe = probe->next) {
		const struct srd_probe *const p =
			(struct srd_probe *)probe->data;
		QComboBox *const combo = create_probe_selector(parent, dec, p);
		connect(combo, SIGNAL(currentIndexChanged(int)),
			this, SLOT(on_probe_selected(int)));
		decoder_form->addRow(tr("<b>%1</b> (%2) *")
			.arg(p->name).arg(p->desc), combo);

		const ProbeSelector s = {combo, dec, p};
		_probe_selectors.push_back(s);
	}

	// Add the optional probes
	for(probe = decoder->opt_probes; probe; probe = probe->next) {
		const struct srd_probe *const p =
			(struct srd_probe *)probe->data;
		QComboBox *const combo = create_probe_selector(parent, dec, p);
		connect(combo, SIGNAL(currentIndexChanged(int)),
			this, SLOT(on_probe_selected(int)));
		decoder_form->addRow(tr("<b>%1</b> (%2)")
			.arg(p->name).arg(p->desc), combo);

		const ProbeSelector s = {combo, dec, p};
		_probe_selectors.push_back(s);
	}

	// Add the options
	shared_ptr<prop::binding::DecoderOptions> binding(
		new prop::binding::DecoderOptions(_decoder_stack, dec));
	binding->add_properties_to_form(decoder_form, true);

	_bindings.push_back(binding);

	form->addRow(group);
}

QComboBox* DecodeTrace::create_probe_selector(
	QWidget *parent, const shared_ptr<data::decode::Decoder> &dec,
	const srd_probe *const probe)
{
	assert(dec);

	const vector< shared_ptr<Signal> > sigs = _session.get_signals();

	assert(_decoder_stack);
	const map<const srd_probe*,
		shared_ptr<LogicSignal> >::const_iterator probe_iter =
		dec->probes().find(probe);

	QComboBox *selector = new QComboBox(parent);

	selector->addItem("-", qVariantFromValue((void*)NULL));

	if (probe_iter == dec->probes().end())
		selector->setCurrentIndex(0);

	for(size_t i = 0; i < sigs.size(); i++) {
		const shared_ptr<view::Signal> s(sigs[i]);
		assert(s);

		if (dynamic_pointer_cast<LogicSignal>(s) && s->enabled())
		{
			selector->addItem(s->get_name(),
				qVariantFromValue((void*)s.get()));
			if ((*probe_iter).second == s)
				selector->setCurrentIndex(i + 1);
		}
	}

	return selector;
}

void DecodeTrace::commit_decoder_probes(shared_ptr<data::decode::Decoder> &dec)
{
	assert(dec);

	map<const srd_probe*, shared_ptr<LogicSignal> > probe_map;
	const vector< shared_ptr<Signal> > sigs = _session.get_signals();

	BOOST_FOREACH(const ProbeSelector &s, _probe_selectors)
	{
		if(s._decoder != dec)
			break;

		const LogicSignal *const selection =
			(LogicSignal*)s._combo->itemData(
				s._combo->currentIndex()).value<void*>();

		BOOST_FOREACH(shared_ptr<Signal> sig, sigs)
			if(sig.get() == selection) {
				probe_map[s._probe] =
					dynamic_pointer_cast<LogicSignal>(sig);
				break;
			}
	}

	dec->set_probes(probe_map);
}

void DecodeTrace::commit_probes()
{
	assert(_decoder_stack);
	BOOST_FOREACH(shared_ptr<data::decode::Decoder> dec,
		_decoder_stack->stack())
		commit_decoder_probes(dec);

	_decoder_stack->begin_decode();
}

void DecodeTrace::on_new_decode_data()
{
	if (_view)
		_view->update_viewport();
}

void DecodeTrace::delete_pressed()
{
	on_delete();
}

void DecodeTrace::on_delete()
{
	_session.remove_decode_signal(this);
}

void DecodeTrace::on_probe_selected(int)
{
	commit_probes();
}

void DecodeTrace::on_stack_decoder(srd_decoder *decoder)
{
	assert(decoder);
	assert(_decoder_stack);
	_decoder_stack->push(shared_ptr<data::decode::Decoder>(
		new data::decode::Decoder(decoder)));
	_decoder_stack->begin_decode();

	create_popup_form();
}

void DecodeTrace::on_delete_decoder(int index)
{
	_decoder_stack->remove(index);

	// Update the popup
	create_popup_form();	

	_decoder_stack->begin_decode();
}

} // namespace view
} // namespace pv
Commit	Line	Data
55d3603d JH	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	extern "C" {
	22	#include <libsigrokdecode/libsigrokdecode.h>
	23	}
	24
06bb4e6a JH	25	#include <extdef.h>
06bb4e6a JH	26
b213ef09 JH	27	#include <boost/foreach.hpp>
b213ef09 JH	28
c51482b3	29	#include <QAction>
d7c0ca4a	30	#include <QApplication>
4e5a4405 JH	31	#include <QComboBox>
	32	#include <QFormLayout>
	33	#include <QLabel>
b213ef09	34	#include <QMenu>
ce94e4fd	35	#include <QPushButton>
c51482b3	36
b9329558	37	#include "decodetrace.h"
55d3603d	38
06bb4e6a	39	#include <pv/sigsession.h>
6e89374a	40	#include <pv/data/decoderstack.h>
7491a29f	41	#include <pv/data/decode/decoder.h>
5dfeb70f JH	42	#include <pv/data/logic.h>
5dfeb70f JH	43	#include <pv/data/logicsnapshot.h>
06e810f2	44	#include <pv/data/decode/annotation.h>
4e5a4405	45	#include <pv/view/logicsignal.h>
e0fc5810	46	#include <pv/view/view.h>
204bae45	47	#include <pv/widgets/decodergroupbox.h>
ce94e4fd	48	#include <pv/widgets/decodermenu.h>
119aff65	49
819f4c25 JH	50	using boost::dynamic_pointer_cast;
	51	using boost::shared_ptr;
	52	using std::list;
	53	using std::max;
	54	using std::map;
	55	using std::min;
	56	using std::vector;
55d3603d JH	57
	58	namespace pv {
	59	namespace view {
	60
b9329558	61	const QColor DecodeTrace::DecodeColours[4] = {
06bb4e6a JH	62	QColor(0xEF, 0x29, 0x29), // Red
	63	QColor(0xFC, 0xE9, 0x4F), // Yellow
	64	QColor(0x8A, 0xE2, 0x34), // Green
	65	QColor(0x72, 0x9F, 0xCF) // Blue
	66	};
	67
b9329558	68	const QColor DecodeTrace::ErrorBgColour = QColor(0xEF, 0x29, 0x29);
5dfeb70f	69	const QColor DecodeTrace::NoDecodeColour = QColor(0x88, 0x8A, 0x85);
ad50ac1a	70
06e810f2 JH	71	const double DecodeTrace::EndCapWidth = 5;
	72	const int DecodeTrace::DrawPadding = 100;
	73
	74	const QColor DecodeTrace::Colours[7] = {
	75	QColor(0xFC, 0xE9, 0x4F), // Light Butter
	76	QColor(0xFC, 0xAF, 0x3E), // Light Orange
	77	QColor(0xE9, 0xB9, 0x6E), // Light Chocolate
	78	QColor(0x8A, 0xE2, 0x34), // Light Green
	79	QColor(0x72, 0x9F, 0xCF), // Light Blue
	80	QColor(0xAD, 0x7F, 0xA8), // Light Plum
	81	QColor(0xEF, 0x29, 0x29) // Light Red
	82	};
	83
b9329558	84	DecodeTrace::DecodeTrace(pv::SigSession &session,
6e89374a	85	boost::shared_ptr<pv::data::DecoderStack> decoder_stack, int index) :
27e8df22 JH	86	Trace(session, QString::fromUtf8(
27e8df22 JH	87	decoder_stack->stack().front()->decoder()->name)),
613d097c JH	88	_decoder_stack(decoder_stack),
613d097c JH	89	_delete_mapper(this)
55d3603d	90	{
6e89374a	91	assert(_decoder_stack);
e0fc5810	92
06bb4e6a	93	_colour = DecodeColours[index % countof(DecodeColours)];
9cef9567	94
6e89374a	95	connect(_decoder_stack.get(), SIGNAL(new_decode_data()),
9cef9567	96	this, SLOT(on_new_decode_data()));
613d097c JH	97	connect(&_delete_mapper, SIGNAL(mapped(int)),
613d097c JH	98	this, SLOT(on_delete_decoder(int)));
55d3603d JH	99	}
55d3603d JH	100
b9329558	101	bool DecodeTrace::enabled() const
55d3603d JH	102	{
	103	return true;
	104	}
	105
6e89374a	106	const boost::shared_ptr<pv::data::DecoderStack>& DecodeTrace::decoder() const
b6b267bb	107	{
6e89374a	108	return _decoder_stack;
b6b267bb JH	109	}
b6b267bb JH	110
b9329558	111	void DecodeTrace::set_view(pv::view::View *view)
e0fc5810 JH	112	{
	113	assert(view);
	114	Trace::set_view(view);
	115	}
	116
b9329558	117	void DecodeTrace::paint_back(QPainter &p, int left, int right)
fe08b6e8	118	{
5dfeb70f	119	Trace::paint_back(p, left, right);
fe08b6e8 JH	120	paint_axis(p, get_y(), left, right);
	121	}
	122
b9329558	123	void DecodeTrace::paint_mid(QPainter &p, int left, int right)
55d3603d	124	{
f9101a91	125	using namespace pv::data::decode;
9472f447	126
9472f447 JH	127	const double scale = _view->scale();
	128	assert(scale > 0);
	129
9d28da5a	130	double samplerate = _decoder_stack->samplerate();
9472f447 JH	131
	132	// Show sample rate as 1Hz when it is unknown
	133	if (samplerate == 0.0)
	134	samplerate = 1.0;
	135
	136	const double pixels_offset = (_view->offset() -
6e89374a	137	_decoder_stack->get_start_time()) / scale;
9472f447 JH	138	const double samples_per_pixel = samplerate * scale;
9472f447 JH	139
92421299 JH	140	const uint64_t start_sample = (uint64_t)max((left + pixels_offset) *
	141	samples_per_pixel, 0.0);
	142	const uint64_t end_sample = (uint64_t)max((right + pixels_offset) *
	143	samples_per_pixel, 0.0);
	144
d7c0ca4a	145	QFontMetrics m(QApplication::font());
f9101a91 JH	146	const int text_height = m.boundingRect(QRect(), 0, "Tg").height();
	147	const int annotation_height = (text_height * 5) / 4;
	148	const int row_height = (text_height * 6) / 4;
5dfeb70f JH	149
	150	assert(_decoder_stack);
	151	const QString err = _decoder_stack->error_message();
	152	if (!err.isEmpty())
	153	{
	154	draw_error(p, err, left, right);
f9101a91 JH	155	draw_unresolved_period(p, annotation_height, left, right,
f9101a91 JH	156	samples_per_pixel, pixels_offset);
5dfeb70f JH	157	return;
	158	}
	159
f9101a91	160	// Iterate through the rows
5dfeb70f	161	assert(_view);
f9101a91	162	int y = get_y();
5dfeb70f	163
6e89374a	164	assert(_decoder_stack);
7e674e43	165
f9101a91 JH	166	const vector<Row> rows(_decoder_stack->get_rows());
f9101a91 JH	167	BOOST_FOREACH (const Row &row, rows)
92421299	168	{
f9101a91 JH	169	vector<Annotation> annotations;
	170	_decoder_stack->get_annotation_subset(annotations, row,
	171	start_sample, end_sample);
	172	if (!annotations.empty()) {
	173	BOOST_FOREACH(const Annotation &a, annotations)
	174	draw_annotation(a, p, get_text_colour(),
	175	annotation_height, left, right,
	176	samples_per_pixel, pixels_offset, y);
	177	y += row_height;
	178	}
7e674e43	179	}
5dfeb70f	180
f9101a91 JH	181	// Draw the hatching
f9101a91 JH	182	draw_unresolved_period(p, annotation_height, left, right,
5dfeb70f	183	samples_per_pixel, pixels_offset);
55d3603d JH	184	}
55d3603d JH	185
b9329558	186	void DecodeTrace::populate_popup_form(QWidget parent, QFormLayout form)
4e5a4405	187	{
613d097c JH	188	using pv::data::decode::Decoder;
613d097c JH	189
4e5a4405 JH	190	assert(form);
4e5a4405 JH	191	assert(parent);
6e89374a	192	assert(_decoder_stack);
4e5a4405	193
7491a29f	194	// Add the standard options
4e5a4405 JH	195	Trace::populate_popup_form(parent, form);
4e5a4405 JH	196
7491a29f JH	197	// Add the decoder options
	198	_bindings.clear();
	199	_probe_selectors.clear();
4e5a4405	200
613d097c	201	const list< shared_ptr<Decoder> >& stack = _decoder_stack->stack();
4e5a4405	202
5069084a JH	203	if (stack.empty())
	204	{
	205	QLabel *const l = new QLabel(
	206	tr("<p><i>No decoders in the stack</i></p>"));
	207	l->setAlignment(Qt::AlignCenter);
	208	form->addRow(l);
	209	}
	210	else
	211	{
	212	list< shared_ptr<Decoder> >::const_iterator iter =
	213	stack.begin();
	214	for (int i = 0; i < (int)stack.size(); i++, iter++) {
	215	shared_ptr<Decoder> dec(*iter);
	216	create_decoder_form(i, dec, parent, form);
	217	}
	218
	219	form->addRow(new QLabel(
	220	tr("<i>* Required Probes</i>"), parent));
	221	}
4e5a4405	222
ce94e4fd	223	// Add stacking button
ce94e4fd JH	224	pv::widgets::DecoderMenu *const decoder_menu =
ce94e4fd JH	225	new pv::widgets::DecoderMenu(parent);
7491a29f JH	226	connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)),
	227	this, SLOT(on_stack_decoder(srd_decoder*)));
	228
	229	QPushButton *const stack_button =
	230	new QPushButton(tr("Stack Decoder"), parent);
ce94e4fd JH	231	stack_button->setMenu(decoder_menu);
	232
	233	QHBoxLayout *stack_button_box = new QHBoxLayout;
	234	stack_button_box->addWidget(stack_button, 0, Qt::AlignRight);
	235	form->addRow(stack_button_box);
4e5a4405 JH	236	}
4e5a4405 JH	237
b9329558	238	QMenu* DecodeTrace::create_context_menu(QWidget *parent)
c51482b3 JH	239	{
	240	QMenu *const menu = Trace::create_context_menu(parent);
	241
	242	menu->addSeparator();
	243
	244	QAction *const del = new QAction(tr("Delete"), this);
a2d21018	245	del->setShortcuts(QKeySequence::Delete);
c51482b3 JH	246	connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
	247	menu->addAction(del);
	248
	249	return menu;
	250	}
	251
06e810f2 JH	252	void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a, QPainter &p,
	253	QColor text_color, int h, int left, int right, double samples_per_pixel,
	254	double pixels_offset, int y) const
	255	{
	256	const double start = a.start_sample() / samples_per_pixel -
	257	pixels_offset;
	258	const double end = a.end_sample() / samples_per_pixel -
	259	pixels_offset;
	260	const QColor fill = Colours[(a.format() * (countof(Colours) / 2 + 1)) %
	261	countof(Colours)];
	262	const QColor outline(fill.darker());
	263
	264	if (start > right + DrawPadding \|\| end < left - DrawPadding)
	265	return;
	266
	267	if (a.start_sample() == a.end_sample())
	268	draw_instant(a, p, fill, outline, text_color, h,
	269	start, y);
	270	else
	271	draw_range(a, p, fill, outline, text_color, h,
	272	start, end, y);
	273	}
	274
	275	void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
	276	QColor fill, QColor outline, QColor text_color, int h, double x, int y) const
	277	{
	278	const QString text = a.annotations().empty() ?
	279	QString() : a.annotations().back();
	280	const double w = min(p.boundingRect(QRectF(), 0, text).width(),
	281	0.0) + h;
	282	const QRectF rect(x - w / 2, y - h / 2, w, h);
	283
	284	p.setPen(outline);
	285	p.setBrush(fill);
	286	p.drawRoundedRect(rect, h / 2, h / 2);
	287
	288	p.setPen(text_color);
	289	p.drawText(rect, Qt::AlignCenter \| Qt::AlignVCenter, text);
	290	}
	291
	292	void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
	293	QColor fill, QColor outline, QColor text_color, int h, double start,
	294	double end, int y) const
	295	{
	296	const double top = y + .5 - h / 2;
	297	const double bottom = y + .5 + h / 2;
	298	const vector<QString> annotations = a.annotations();
	299
	300	p.setPen(outline);
	301	p.setBrush(fill);
	302
	303	// If the two ends are within 1 pixel, draw a vertical line
	304	if (start + 1.0 > end)
	305	{
	306	p.drawLine(QPointF(start, top), QPointF(start, bottom));
	307	return;
	308	}
	309
	310	const double cap_width = min((end - start) / 4, EndCapWidth);
	311
	312	QPointF pts[] = {
	313	QPointF(start, y + .5f),
	314	QPointF(start + cap_width, top),
	315	QPointF(end - cap_width, top),
316	QPointF(end, y + .5f),
317	QPointF(end - cap_width, bottom),
318	QPointF(start + cap_width, bottom)
319	};
320
321	p.drawConvexPolygon(pts, countof(pts));
322
323	if (annotations.empty())
324	return;
325
326	QRectF rect(start + cap_width, y - h / 2,
327	end - start - cap_width * 2, h);
328	p.setPen(text_color);
329
330	// Try to find an annotation that will fit
331	QString best_annotation;
332	int best_width = 0;
333
334	BOOST_FOREACH(const QString &a, annotations) {
335	const int w = p.boundingRect(QRectF(), 0, a).width();
336	if (w <= rect.width() && w > best_width)
337	best_annotation = a, best_width = w;
338	}
339
340	if (best_annotation.isEmpty())
341	best_annotation = annotations.back();
342
343	// If not ellide the last in the list
344	p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
345	best_annotation, Qt::ElideRight, rect.width()));
346	}
347
b9329558	348	void DecodeTrace::draw_error(QPainter &p, const QString &message,
ad50ac1a JH	349	int left, int right)
	350	{
	351	const int y = get_y();
	352
	353	p.setPen(ErrorBgColour.darker());
	354	p.setBrush(ErrorBgColour);
	355
	356	const QRectF bounding_rect =
	357	QRectF(left, INT_MIN / 2 + y, right - left, INT_MAX);
	358	const QRectF text_rect = p.boundingRect(bounding_rect,
	359	Qt::AlignCenter, message);
	360	const float r = text_rect.height() / 4;
	361
	362	p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r,
	363	Qt::AbsoluteSize);
	364
	365	p.setPen(get_text_colour());
	366	p.drawText(text_rect, message);
	367	}
	368
5dfeb70f JH	369	void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left,
	370	int right, double samples_per_pixel, double pixels_offset)
	371	{
	372	using namespace pv::data;
	373	using pv::data::decode::Decoder;
	374
	375	assert(_decoder_stack);
	376
	377	shared_ptr<Logic> data;
	378	shared_ptr<LogicSignal> logic_signal;
	379
	380	const list< shared_ptr<Decoder> > &stack = _decoder_stack->stack();
	381
	382	// We get the logic data of the first probe in the list.
	383	// This works because we are currently assuming all
	384	// LogicSignals have the same data/snapshot
	385	BOOST_FOREACH (const shared_ptr<Decoder> &dec, stack)
	386	if (dec && !dec->probes().empty() &&
	387	((logic_signal = (*dec->probes().begin()).second)) &&
7aa09b00	388	((data = logic_signal->logic_data())))
5dfeb70f JH	389	break;
	390
	391	if (!data \|\| data->get_snapshots().empty())
	392	return;
	393
	394	const shared_ptr<LogicSnapshot> snapshot =
	395	data->get_snapshots().front();
	396	assert(snapshot);
	397	const int64_t sample_count = (int64_t)snapshot->get_sample_count();
	398	if (sample_count == 0)
	399	return;
	400
	401	const int64_t samples_decoded = _decoder_stack->samples_decoded();
	402	if (sample_count == samples_decoded)
	403	return;
	404
	405	const int y = get_y();
	406	const double start = max(samples_decoded /
	407	samples_per_pixel - pixels_offset, left - 1.0);
	408	const double end = min(sample_count / samples_per_pixel -
	409	pixels_offset, right + 1.0);
	410	const QRectF no_decode_rect(start, y - h/2 + 0.5, end - start, h);
	411
	412	p.setPen(QPen(Qt::NoPen));
	413	p.setBrush(Qt::white);
	414	p.drawRect(no_decode_rect);
	415
	416	p.setPen(NoDecodeColour);
	417	p.setBrush(QBrush(NoDecodeColour, Qt::Dense6Pattern));
	418	p.drawRect(no_decode_rect);
	419	}
	420
613d097c JH	421	void DecodeTrace::create_decoder_form(int index,
	422	shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
	423	QFormLayout *form)
7491a29f JH	424	{
	425	const GSList *probe;
	426
	427	assert(dec);
	428	const srd_decoder *const decoder = dec->decoder();
	429	assert(decoder);
	430
204bae45	431	pv::widgets::DecoderGroupBox *const group =
27e8df22 JH	432	new pv::widgets::DecoderGroupBox(
27e8df22 JH	433	QString::fromUtf8(decoder->name));
613d097c JH	434
	435	_delete_mapper.setMapping(group, index);
	436	connect(group, SIGNAL(delete_decoder()), &_delete_mapper, SLOT(map()));
	437
204bae45 JH	438	QFormLayout *const decoder_form = new QFormLayout;
204bae45 JH	439	group->add_layout(decoder_form);
7491a29f JH	440
	441	// Add the mandatory probes
	442	for(probe = decoder->probes; probe; probe = probe->next) {
	443	const struct srd_probe *const p =
	444	(struct srd_probe *)probe->data;
	445	QComboBox *const combo = create_probe_selector(parent, dec, p);
	446	connect(combo, SIGNAL(currentIndexChanged(int)),
	447	this, SLOT(on_probe_selected(int)));
204bae45	448	decoder_form->addRow(tr("<b>%1</b> (%2) *")
7491a29f JH	449	.arg(p->name).arg(p->desc), combo);
	450
	451	const ProbeSelector s = {combo, dec, p};
	452	_probe_selectors.push_back(s);
	453	}
	454
	455	// Add the optional probes
	456	for(probe = decoder->opt_probes; probe; probe = probe->next) {
	457	const struct srd_probe *const p =
	458	(struct srd_probe *)probe->data;
	459	QComboBox *const combo = create_probe_selector(parent, dec, p);
	460	connect(combo, SIGNAL(currentIndexChanged(int)),
	461	this, SLOT(on_probe_selected(int)));
204bae45	462	decoder_form->addRow(tr("<b>%1</b> (%2)")
7491a29f JH	463	.arg(p->name).arg(p->desc), combo);
	464
	465	const ProbeSelector s = {combo, dec, p};
	466	_probe_selectors.push_back(s);
	467	}
	468
	469	// Add the options
	470	shared_ptr<prop::binding::DecoderOptions> binding(
	471	new prop::binding::DecoderOptions(_decoder_stack, dec));
204bae45	472	binding->add_properties_to_form(decoder_form, true);
7491a29f JH	473
7491a29f JH	474	_bindings.push_back(binding);
204bae45 JH	475
204bae45 JH	476	form->addRow(group);
7491a29f JH	477	}
7491a29f JH	478
b9329558	479	QComboBox* DecodeTrace::create_probe_selector(
7491a29f JH	480	QWidget *parent, const shared_ptr<data::decode::Decoder> &dec,
7491a29f JH	481	const srd_probe *const probe)
4e5a4405	482	{
7491a29f JH	483	assert(dec);
7491a29f JH	484
4e5a4405 JH	485	const vector< shared_ptr<Signal> > sigs = _session.get_signals();
4e5a4405 JH	486
6e89374a	487	assert(_decoder_stack);
4e5a4405 JH	488	const map<const srd_probe*,
4e5a4405 JH	489	shared_ptr<LogicSignal> >::const_iterator probe_iter =
7491a29f	490	dec->probes().find(probe);
4e5a4405 JH	491
	492	QComboBox *selector = new QComboBox(parent);
	493
	494	selector->addItem("-", qVariantFromValue((void*)NULL));
	495
7491a29f	496	if (probe_iter == dec->probes().end())
4e5a4405 JH	497	selector->setCurrentIndex(0);
	498
	499	for(size_t i = 0; i < sigs.size(); i++) {
	500	const shared_ptr<view::Signal> s(sigs[i]);
	501	assert(s);
	502
	503	if (dynamic_pointer_cast<LogicSignal>(s) && s->enabled())
	504	{
	505	selector->addItem(s->get_name(),
	506	qVariantFromValue((void*)s.get()));
	507	if ((*probe_iter).second == s)
	508	selector->setCurrentIndex(i + 1);
	509	}
	510	}
	511
	512	return selector;
	513	}
	514
7491a29f	515	void DecodeTrace::commit_decoder_probes(shared_ptr<data::decode::Decoder> &dec)
4e5a4405	516	{
7491a29f	517	assert(dec);
4e5a4405 JH	518
	519	map<const srd_probe*, shared_ptr<LogicSignal> > probe_map;
	520	const vector< shared_ptr<Signal> > sigs = _session.get_signals();
	521
7491a29f	522	BOOST_FOREACH(const ProbeSelector &s, _probe_selectors)
4e5a4405	523	{
7491a29f JH	524	if(s._decoder != dec)
	525	break;
	526
4e5a4405	527	const LogicSignal *const selection =
7491a29f JH	528	(LogicSignal*)s._combo->itemData(
7491a29f JH	529	s._combo->currentIndex()).value<void*>();
4e5a4405	530
7491a29f JH	531	BOOST_FOREACH(shared_ptr<Signal> sig, sigs)
	532	if(sig.get() == selection) {
	533	probe_map[s._probe] =
	534	dynamic_pointer_cast<LogicSignal>(sig);
4e5a4405 JH	535	break;
	536	}
	537	}
	538
7491a29f JH	539	dec->set_probes(probe_map);
	540	}
	541
	542	void DecodeTrace::commit_probes()
	543	{
	544	assert(_decoder_stack);
	545	BOOST_FOREACH(shared_ptr<data::decode::Decoder> dec,
	546	_decoder_stack->stack())
	547	commit_decoder_probes(dec);
	548
	549	_decoder_stack->begin_decode();
4e5a4405 JH	550	}
4e5a4405 JH	551
b9329558	552	void DecodeTrace::on_new_decode_data()
9cef9567 JH	553	{
	554	if (_view)
	555	_view->update_viewport();
	556	}
	557
b9329558	558	void DecodeTrace::delete_pressed()
5ed1adf5 JH	559	{
	560	on_delete();
	561	}
	562
b9329558	563	void DecodeTrace::on_delete()
c51482b3 JH	564	{
	565	_session.remove_decode_signal(this);
	566	}
	567
b9329558	568	void DecodeTrace::on_probe_selected(int)
4e5a4405 JH	569	{
	570	commit_probes();
	571	}
	572
7491a29f JH	573	void DecodeTrace::on_stack_decoder(srd_decoder *decoder)
	574	{
	575	assert(decoder);
	576	assert(_decoder_stack);
	577	_decoder_stack->push(shared_ptr<data::decode::Decoder>(
	578	new data::decode::Decoder(decoder)));
	579	_decoder_stack->begin_decode();
37fd11b1 JH	580
37fd11b1 JH	581	create_popup_form();
7491a29f JH	582	}
7491a29f JH	583
613d097c JH	584	void DecodeTrace::on_delete_decoder(int index)
	585	{
	586	_decoder_stack->remove(index);
	587
	588	// Update the popup
	589	create_popup_form();
	590
	591	_decoder_stack->begin_decode();
	592	}
	593
55d3603d JH	594	} // namespace view
55d3603d JH	595	} // namespace pv