[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 pv::data::decode::Annotation;

	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;

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

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

	assert(_view);
	const int y = get_y();

	assert(_decoder_stack);
	vector<Annotation> annotations(_decoder_stack->annotations());

	BOOST_FOREACH(const Annotation &a, annotations) {
		// Every annotation row is 20 pixels further down.
		int y_ann_row_offset = a.row() * 20;

		draw_annotation(a, p, get_text_colour(), h, left, right,
			samples_per_pixel, pixels_offset,
			y + y_ann_row_offset);
	}

	draw_unresolved_period(p, h, 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	{
06e810f2	125	using pv::data::decode::Annotation;
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
d7c0ca4a JH	140	QFontMetrics m(QApplication::font());
d7c0ca4a JH	141	const int h = (m.boundingRect(QRect(), 0, "Tg").height() * 5) / 4;
5dfeb70f JH	142
	143	assert(_decoder_stack);
	144	const QString err = _decoder_stack->error_message();
	145	if (!err.isEmpty())
	146	{
	147	draw_error(p, err, left, right);
	148	draw_unresolved_period(p, h, left, right, samples_per_pixel,
	149	pixels_offset);
	150	return;
	151	}
	152
	153	assert(_view);
	154	const int y = get_y();
	155
6e89374a	156	assert(_decoder_stack);
db62bbfd	157	vector<Annotation> annotations(_decoder_stack->annotations());
7e674e43 UH	158
	159	BOOST_FOREACH(const Annotation &a, annotations) {
	160	// Every annotation row is 20 pixels further down.
	161	int y_ann_row_offset = a.row() * 20;
	162
06e810f2	163	draw_annotation(a, p, get_text_colour(), h, left, right,
7e674e43 UH	164	samples_per_pixel, pixels_offset,
	165	y + y_ann_row_offset);
	166	}
5dfeb70f JH	167
	168	draw_unresolved_period(p, h, left, right,
	169	samples_per_pixel, pixels_offset);
55d3603d JH	170	}
55d3603d JH	171
b9329558	172	void DecodeTrace::populate_popup_form(QWidget parent, QFormLayout form)
4e5a4405	173	{
613d097c JH	174	using pv::data::decode::Decoder;
613d097c JH	175
4e5a4405 JH	176	assert(form);
4e5a4405 JH	177	assert(parent);
6e89374a	178	assert(_decoder_stack);
4e5a4405	179
7491a29f	180	// Add the standard options
4e5a4405 JH	181	Trace::populate_popup_form(parent, form);
4e5a4405 JH	182
7491a29f JH	183	// Add the decoder options
	184	_bindings.clear();
	185	_probe_selectors.clear();
4e5a4405	186
613d097c	187	const list< shared_ptr<Decoder> >& stack = _decoder_stack->stack();
4e5a4405	188
5069084a JH	189	if (stack.empty())
	190	{
	191	QLabel *const l = new QLabel(
	192	tr("<p><i>No decoders in the stack</i></p>"));
	193	l->setAlignment(Qt::AlignCenter);
	194	form->addRow(l);
	195	}
	196	else
	197	{
	198	list< shared_ptr<Decoder> >::const_iterator iter =
	199	stack.begin();
	200	for (int i = 0; i < (int)stack.size(); i++, iter++) {
	201	shared_ptr<Decoder> dec(*iter);
	202	create_decoder_form(i, dec, parent, form);
	203	}
	204
	205	form->addRow(new QLabel(
	206	tr("<i>* Required Probes</i>"), parent));
	207	}
4e5a4405	208
ce94e4fd	209	// Add stacking button
ce94e4fd JH	210	pv::widgets::DecoderMenu *const decoder_menu =
ce94e4fd JH	211	new pv::widgets::DecoderMenu(parent);
7491a29f JH	212	connect(decoder_menu, SIGNAL(decoder_selected(srd_decoder*)),
	213	this, SLOT(on_stack_decoder(srd_decoder*)));
	214
	215	QPushButton *const stack_button =
	216	new QPushButton(tr("Stack Decoder"), parent);
ce94e4fd JH	217	stack_button->setMenu(decoder_menu);
	218
	219	QHBoxLayout *stack_button_box = new QHBoxLayout;
	220	stack_button_box->addWidget(stack_button, 0, Qt::AlignRight);
	221	form->addRow(stack_button_box);
4e5a4405 JH	222	}
4e5a4405 JH	223
b9329558	224	QMenu* DecodeTrace::create_context_menu(QWidget *parent)
c51482b3 JH	225	{
	226	QMenu *const menu = Trace::create_context_menu(parent);
	227
	228	menu->addSeparator();
	229
	230	QAction *const del = new QAction(tr("Delete"), this);
a2d21018	231	del->setShortcuts(QKeySequence::Delete);
c51482b3 JH	232	connect(del, SIGNAL(triggered()), this, SLOT(on_delete()));
	233	menu->addAction(del);
	234
	235	return menu;
	236	}
	237
06e810f2 JH	238	void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a, QPainter &p,
	239	QColor text_color, int h, int left, int right, double samples_per_pixel,
	240	double pixels_offset, int y) const
	241	{
	242	const double start = a.start_sample() / samples_per_pixel -
	243	pixels_offset;
	244	const double end = a.end_sample() / samples_per_pixel -
	245	pixels_offset;
	246	const QColor fill = Colours[(a.format() * (countof(Colours) / 2 + 1)) %
	247	countof(Colours)];
	248	const QColor outline(fill.darker());
	249
	250	if (start > right + DrawPadding \|\| end < left - DrawPadding)
	251	return;
	252
	253	if (a.start_sample() == a.end_sample())
	254	draw_instant(a, p, fill, outline, text_color, h,
	255	start, y);
	256	else
	257	draw_range(a, p, fill, outline, text_color, h,
	258	start, end, y);
	259	}
	260
	261	void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
	262	QColor fill, QColor outline, QColor text_color, int h, double x, int y) const
	263	{
	264	const QString text = a.annotations().empty() ?
	265	QString() : a.annotations().back();
	266	const double w = min(p.boundingRect(QRectF(), 0, text).width(),
	267	0.0) + h;
	268	const QRectF rect(x - w / 2, y - h / 2, w, h);
	269
	270	p.setPen(outline);
	271	p.setBrush(fill);
	272	p.drawRoundedRect(rect, h / 2, h / 2);
	273
	274	p.setPen(text_color);
	275	p.drawText(rect, Qt::AlignCenter \| Qt::AlignVCenter, text);
	276	}
	277
	278	void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
	279	QColor fill, QColor outline, QColor text_color, int h, double start,
	280	double end, int y) const
	281	{
	282	const double top = y + .5 - h / 2;
	283	const double bottom = y + .5 + h / 2;
	284	const vector<QString> annotations = a.annotations();
	285
	286	p.setPen(outline);
	287	p.setBrush(fill);
	288
	289	// If the two ends are within 1 pixel, draw a vertical line
	290	if (start + 1.0 > end)
	291	{
	292	p.drawLine(QPointF(start, top), QPointF(start, bottom));
	293	return;
	294	}
	295
	296	const double cap_width = min((end - start) / 4, EndCapWidth);
	297
	298	QPointF pts[] = {
	299	QPointF(start, y + .5f),
	300	QPointF(start + cap_width, top),
	301	QPointF(end - cap_width, top),
302	QPointF(end, y + .5f),
303	QPointF(end - cap_width, bottom),
304	QPointF(start + cap_width, bottom)
305	};
306
307	p.drawConvexPolygon(pts, countof(pts));
308
309	if (annotations.empty())
310	return;
311
312	QRectF rect(start + cap_width, y - h / 2,
313	end - start - cap_width * 2, h);
314	p.setPen(text_color);
315
316	// Try to find an annotation that will fit
317	QString best_annotation;
318	int best_width = 0;
319
320	BOOST_FOREACH(const QString &a, annotations) {
321	const int w = p.boundingRect(QRectF(), 0, a).width();
322	if (w <= rect.width() && w > best_width)
323	best_annotation = a, best_width = w;
324	}
325
326	if (best_annotation.isEmpty())
327	best_annotation = annotations.back();
328
329	// If not ellide the last in the list
330	p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
331	best_annotation, Qt::ElideRight, rect.width()));
332	}
333
b9329558	334	void DecodeTrace::draw_error(QPainter &p, const QString &message,
ad50ac1a JH	335	int left, int right)
	336	{
	337	const int y = get_y();
	338
	339	p.setPen(ErrorBgColour.darker());
	340	p.setBrush(ErrorBgColour);
	341
	342	const QRectF bounding_rect =
	343	QRectF(left, INT_MIN / 2 + y, right - left, INT_MAX);
	344	const QRectF text_rect = p.boundingRect(bounding_rect,
	345	Qt::AlignCenter, message);
	346	const float r = text_rect.height() / 4;
	347
	348	p.drawRoundedRect(text_rect.adjusted(-r, -r, r, r), r, r,
	349	Qt::AbsoluteSize);
	350
	351	p.setPen(get_text_colour());
	352	p.drawText(text_rect, message);
	353	}
	354
5dfeb70f JH	355	void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left,
	356	int right, double samples_per_pixel, double pixels_offset)
	357	{
	358	using namespace pv::data;
	359	using pv::data::decode::Decoder;
	360
	361	assert(_decoder_stack);
	362
	363	shared_ptr<Logic> data;
	364	shared_ptr<LogicSignal> logic_signal;
	365
	366	const list< shared_ptr<Decoder> > &stack = _decoder_stack->stack();
	367
	368	// We get the logic data of the first probe in the list.
	369	// This works because we are currently assuming all
	370	// LogicSignals have the same data/snapshot
	371	BOOST_FOREACH (const shared_ptr<Decoder> &dec, stack)
	372	if (dec && !dec->probes().empty() &&
	373	((logic_signal = (*dec->probes().begin()).second)) &&
7aa09b00	374	((data = logic_signal->logic_data())))
5dfeb70f JH	375	break;
	376
	377	if (!data \|\| data->get_snapshots().empty())
	378	return;
	379
	380	const shared_ptr<LogicSnapshot> snapshot =
	381	data->get_snapshots().front();
	382	assert(snapshot);
	383	const int64_t sample_count = (int64_t)snapshot->get_sample_count();
	384	if (sample_count == 0)
	385	return;
	386
	387	const int64_t samples_decoded = _decoder_stack->samples_decoded();
	388	if (sample_count == samples_decoded)
	389	return;
	390
	391	const int y = get_y();
	392	const double start = max(samples_decoded /
	393	samples_per_pixel - pixels_offset, left - 1.0);
	394	const double end = min(sample_count / samples_per_pixel -
	395	pixels_offset, right + 1.0);
	396	const QRectF no_decode_rect(start, y - h/2 + 0.5, end - start, h);
	397
	398	p.setPen(QPen(Qt::NoPen));
	399	p.setBrush(Qt::white);
	400	p.drawRect(no_decode_rect);
	401
	402	p.setPen(NoDecodeColour);
	403	p.setBrush(QBrush(NoDecodeColour, Qt::Dense6Pattern));
	404	p.drawRect(no_decode_rect);
	405	}
	406
613d097c JH	407	void DecodeTrace::create_decoder_form(int index,
	408	shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
	409	QFormLayout *form)
7491a29f JH	410	{
	411	const GSList *probe;
	412
	413	assert(dec);
	414	const srd_decoder *const decoder = dec->decoder();
	415	assert(decoder);
	416
204bae45	417	pv::widgets::DecoderGroupBox *const group =
27e8df22 JH	418	new pv::widgets::DecoderGroupBox(
27e8df22 JH	419	QString::fromUtf8(decoder->name));
613d097c JH	420
	421	_delete_mapper.setMapping(group, index);
	422	connect(group, SIGNAL(delete_decoder()), &_delete_mapper, SLOT(map()));
	423
204bae45 JH	424	QFormLayout *const decoder_form = new QFormLayout;
204bae45 JH	425	group->add_layout(decoder_form);
7491a29f JH	426
	427	// Add the mandatory probes
	428	for(probe = decoder->probes; probe; probe = probe->next) {
	429	const struct srd_probe *const p =
	430	(struct srd_probe *)probe->data;
	431	QComboBox *const combo = create_probe_selector(parent, dec, p);
	432	connect(combo, SIGNAL(currentIndexChanged(int)),
	433	this, SLOT(on_probe_selected(int)));
204bae45	434	decoder_form->addRow(tr("<b>%1</b> (%2) *")
7491a29f JH	435	.arg(p->name).arg(p->desc), combo);
	436
	437	const ProbeSelector s = {combo, dec, p};
	438	_probe_selectors.push_back(s);
	439	}
	440
	441	// Add the optional probes
	442	for(probe = decoder->opt_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 options
	456	shared_ptr<prop::binding::DecoderOptions> binding(
	457	new prop::binding::DecoderOptions(_decoder_stack, dec));
204bae45	458	binding->add_properties_to_form(decoder_form, true);
7491a29f JH	459
7491a29f JH	460	_bindings.push_back(binding);
204bae45 JH	461
204bae45 JH	462	form->addRow(group);
7491a29f JH	463	}
7491a29f JH	464
b9329558	465	QComboBox* DecodeTrace::create_probe_selector(
7491a29f JH	466	QWidget *parent, const shared_ptr<data::decode::Decoder> &dec,
7491a29f JH	467	const srd_probe *const probe)
4e5a4405	468	{
7491a29f JH	469	assert(dec);
7491a29f JH	470
4e5a4405 JH	471	const vector< shared_ptr<Signal> > sigs = _session.get_signals();
4e5a4405 JH	472
6e89374a	473	assert(_decoder_stack);
4e5a4405 JH	474	const map<const srd_probe*,
4e5a4405 JH	475	shared_ptr<LogicSignal> >::const_iterator probe_iter =
7491a29f	476	dec->probes().find(probe);
4e5a4405 JH	477
	478	QComboBox *selector = new QComboBox(parent);
	479
	480	selector->addItem("-", qVariantFromValue((void*)NULL));
	481
7491a29f	482	if (probe_iter == dec->probes().end())
4e5a4405 JH	483	selector->setCurrentIndex(0);
	484
	485	for(size_t i = 0; i < sigs.size(); i++) {
	486	const shared_ptr<view::Signal> s(sigs[i]);
	487	assert(s);
	488
	489	if (dynamic_pointer_cast<LogicSignal>(s) && s->enabled())
	490	{
	491	selector->addItem(s->get_name(),
	492	qVariantFromValue((void*)s.get()));
	493	if ((*probe_iter).second == s)
	494	selector->setCurrentIndex(i + 1);
	495	}
	496	}
	497
	498	return selector;
	499	}
	500
7491a29f	501	void DecodeTrace::commit_decoder_probes(shared_ptr<data::decode::Decoder> &dec)
4e5a4405	502	{
7491a29f	503	assert(dec);
4e5a4405 JH	504
	505	map<const srd_probe*, shared_ptr<LogicSignal> > probe_map;
	506	const vector< shared_ptr<Signal> > sigs = _session.get_signals();
	507
7491a29f	508	BOOST_FOREACH(const ProbeSelector &s, _probe_selectors)
4e5a4405	509	{
7491a29f JH	510	if(s._decoder != dec)
	511	break;
	512
4e5a4405	513	const LogicSignal *const selection =
7491a29f JH	514	(LogicSignal*)s._combo->itemData(
7491a29f JH	515	s._combo->currentIndex()).value<void*>();
4e5a4405	516
7491a29f JH	517	BOOST_FOREACH(shared_ptr<Signal> sig, sigs)
	518	if(sig.get() == selection) {
	519	probe_map[s._probe] =
	520	dynamic_pointer_cast<LogicSignal>(sig);
4e5a4405 JH	521	break;
	522	}
	523	}
	524
7491a29f JH	525	dec->set_probes(probe_map);
	526	}
	527
	528	void DecodeTrace::commit_probes()
	529	{
	530	assert(_decoder_stack);
	531	BOOST_FOREACH(shared_ptr<data::decode::Decoder> dec,
	532	_decoder_stack->stack())
	533	commit_decoder_probes(dec);
	534
	535	_decoder_stack->begin_decode();
4e5a4405 JH	536	}
4e5a4405 JH	537
b9329558	538	void DecodeTrace::on_new_decode_data()
9cef9567 JH	539	{
	540	if (_view)
	541	_view->update_viewport();
	542	}
	543
b9329558	544	void DecodeTrace::delete_pressed()
5ed1adf5 JH	545	{
	546	on_delete();
	547	}
	548
b9329558	549	void DecodeTrace::on_delete()
c51482b3 JH	550	{
	551	_session.remove_decode_signal(this);
	552	}
	553
b9329558	554	void DecodeTrace::on_probe_selected(int)
4e5a4405 JH	555	{
	556	commit_probes();
	557	}
	558
7491a29f JH	559	void DecodeTrace::on_stack_decoder(srd_decoder *decoder)
	560	{
	561	assert(decoder);
	562	assert(_decoder_stack);
	563	_decoder_stack->push(shared_ptr<data::decode::Decoder>(
	564	new data::decode::Decoder(decoder)));
	565	_decoder_stack->begin_decode();
37fd11b1 JH	566
37fd11b1 JH	567	create_popup_form();
7491a29f JH	568	}
7491a29f JH	569
613d097c JH	570	void DecodeTrace::on_delete_decoder(int index)
	571	{
	572	_decoder_stack->remove(index);
	573
	574	// Update the popup
	575	create_popup_form();
	576
	577	_decoder_stack->begin_decode();
	578	}
	579
55d3603d JH	580	} // namespace view
55d3603d JH	581	} // namespace pv