[pulseview.git] / pv / subwindows / decoder_selector / subwindow.cpp

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2018 Soeren Apel <soeren@apelpie.net>
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include <algorithm>

#include <QDebug>
#include <QInputDialog>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QVBoxLayout>

#include "pv/session.hpp"
#include "pv/subwindows/decoder_selector/subwindow.hpp"

using std::reverse;
using std::shared_ptr;

namespace pv {
namespace subwindows {
namespace decoder_selector {


bool QCustomSortFilterProxyModel::filterAcceptsRow(int source_row,
	const QModelIndex& source_parent) const
{
	// Search model recursively

	if (QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent))
		return true;

	const QModelIndex index = sourceModel()->index(source_row, 0, source_parent);

	for (int i = 0; i < sourceModel()->rowCount(index); i++)
		if (filterAcceptsRow(i, index))
			return true;

	return false;
}


void QCustomTreeView::currentChanged(const QModelIndex& current,
	const QModelIndex& previous)
{
	QTreeView::currentChanged(current, previous);
	currentChanged(current);
}


SubWindow::SubWindow(Session& session, QWidget* parent) :
	SubWindowBase(session, parent),
	splitter_(new QSplitter()),
	tree_view_(new QCustomTreeView()),
	info_box_(new QWidget()),
	info_label_header_(new QLabel()),
	info_label_body_(new QLabel()),
	info_label_footer_(new QLabel()),
	model_(new DecoderCollectionModel()),
	sort_filter_model_(new QCustomSortFilterProxyModel())
{
	QVBoxLayout* root_layout = new QVBoxLayout(this);
	root_layout->setContentsMargins(0, 0, 0, 0);
	root_layout->addWidget(splitter_);

	QWidget* upper_container = new QWidget();
	QVBoxLayout* upper_layout = new QVBoxLayout(upper_container);
	upper_layout->setContentsMargins(0, 5, 0, 0);
	QLineEdit* filter = new QLineEdit();
	upper_layout->addWidget(filter);
	upper_layout->addWidget(tree_view_);

	splitter_->setOrientation(Qt::Vertical);
	splitter_->addWidget(upper_container);
	splitter_->addWidget(info_box_);

	const QIcon filter_icon(QIcon::fromTheme("search",
		QIcon(":/icons/search.svg")));
	filter->setClearButtonEnabled(true);
	filter->addAction(filter_icon, QLineEdit::LeadingPosition);

	sort_filter_model_->setSourceModel(model_);
	sort_filter_model_->setFilterCaseSensitivity(Qt::CaseInsensitive);

	tree_view_->setModel(sort_filter_model_);
	tree_view_->setRootIsDecorated(true);
	tree_view_->setSortingEnabled(true);
	tree_view_->sortByColumn(0, Qt::AscendingOrder);

	// Hide the columns that hold the detailed item information
	tree_view_->hideColumn(2);  // ID

	info_box_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
	QVBoxLayout* info_box_layout = new QVBoxLayout(info_box_);
	info_box_layout->addWidget(info_label_header_);
	info_box_layout->addWidget(info_label_body_);
	info_box_layout->addWidget(info_label_footer_);
	Qt::TextInteractionFlags flags = Qt::TextSelectableByMouse | Qt::TextSelectableByKeyboard;
	info_label_header_->setWordWrap(true);
	info_label_header_->setTextInteractionFlags(flags);
	info_label_body_->setWordWrap(true);
	info_label_body_->setTextInteractionFlags(flags);
	info_label_body_->setText(tr("Select a decoder to see its description here."));
	info_label_footer_->setWordWrap(true);
	info_label_footer_->setTextInteractionFlags(flags);

	connect(filter, SIGNAL(textChanged(const QString&)),
		this, SLOT(on_filter_changed(const QString&)));

	connect(tree_view_, SIGNAL(currentChanged(const QModelIndex&)),
		this, SLOT(on_item_changed(const QModelIndex&)));
	connect(tree_view_, SIGNAL(activated(const QModelIndex&)),
		this, SLOT(on_item_activated(const QModelIndex&)));

	connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)),
		&session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>)));
}

bool SubWindow::has_toolbar() const
{
	return true;
}

QToolBar* SubWindow::create_toolbar(QWidget *parent) const
{
	QToolBar* toolbar = new QToolBar(parent);

	return toolbar;
}

vector<const char*> SubWindow::get_decoder_inputs(const srd_decoder* d) const
{
	vector<const char*> ret_val;

	for (GSList* li = d->inputs; li; li = li->next)
		ret_val.push_back((const char*)li->data);

	return ret_val;
}

vector<const srd_decoder*> SubWindow::get_decoders_providing(const char* output) const
{
	vector<const srd_decoder*> ret_val;

	for (GSList* li = (GSList*)srd_decoder_list(); li; li = li->next) {
		const srd_decoder* d = (srd_decoder*)li->data;
		assert(d);

		if (!d->outputs)
			continue;

		// TODO For now we ignore that d->outputs is actually a list
		if (strncmp((char*)(d->outputs->data), output, strlen(output)) == 0)
			ret_val.push_back(d);
	}

	return ret_val;
}

void SubWindow::on_item_changed(const QModelIndex& index)
{
	if (!index.isValid())
		return;

	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();

	if (decoder_name.isEmpty())
		return;

	const srd_decoder* d = srd_decoder_get_by_id(decoder_name.toUtf8());

	const QString id = QString::fromUtf8(d->id);
	const QString longname = QString::fromUtf8(d->longname);
	const QString desc = QString::fromUtf8(d->desc);
	const QString doc = QString::fromUtf8(srd_decoder_doc_get(d));

	QString tags;
	for (GSList* li = (GSList*)d->tags; li; li = li->next) {
		QString s = (li == (GSList*)d->tags) ?
			tr((char*)li->data) :
			QString(tr(", %1")).arg(tr((char*)li->data));
		tags.append(s);
	}

	info_label_header_->setText(QString("<span style='font-size:large;font-weight:bold'>%1 (%2)</span><br>%3")
		.arg(longname, id, desc));
	info_label_body_->setText(doc);
	info_label_footer_->setText(tr("<p align='right'>Tags: %1</p>").arg(tags));
}

void SubWindow::on_item_activated(const QModelIndex& index)
{
	if (!index.isValid())
		return;

	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();

	const srd_decoder* chosen_decoder = srd_decoder_get_by_id(decoder_name.toUtf8());
	if (chosen_decoder == nullptr)
		return;

	vector<const srd_decoder*> decoders;
	decoders.push_back(chosen_decoder);

	// If the decoder only depends on logic inputs, we add it and are done
	vector<const char*> inputs = get_decoder_inputs(decoders.front());
	if (inputs.size() == 0) {
		qWarning() << "Protocol decoder" << decoder_name << "cannot have 0 inputs!";
		return;
	}

	if (strncmp(inputs.at(0), "logic", 5) == 0) {
		new_decoders_selected(decoders);
		return;
	}

	// Check if we can automatically fulfill the stacking requirements
	while (strncmp(inputs.at(0), "logic", 5) != 0) {
		vector<const srd_decoder*> prov_decoders = get_decoders_providing(inputs.at(0));

		if (prov_decoders.size() == 0) {
			// Emit warning and add the stack that we could gather so far
			qWarning() << "Protocol decoder" << QString::fromUtf8(decoders.back()->id) \
				<< "has input that no other decoder provides:" << QString::fromUtf8(inputs.at(0));
			break;
		}

		if (prov_decoders.size() == 1) {
			decoders.push_back(prov_decoders.front());
		} else {
			// Let user decide which one to use
			QString caption = QString(tr("Protocol decoder <b>%1</b> requires input type <b>%2</b> " \
				"which several decoders provide.<br>Choose which one to use:<br>"))
					.arg(QString::fromUtf8(decoders.back()->id), QString::fromUtf8(inputs.at(0)));

			QStringList items;
			for (const srd_decoder* d : prov_decoders)
				items << QString::fromUtf8(d->id) + " (" + QString::fromUtf8(d->longname) + ")";
			bool ok_clicked;
			QString item = QInputDialog::getItem(this, tr("Choose Decoder"),
				tr(caption.toUtf8()), items, 0, false, &ok_clicked);

			if ((!ok_clicked) || (item.isEmpty()))
				return;

			QString d = item.section(' ', 0, 0);
			decoders.push_back(srd_decoder_get_by_id(d.toUtf8()));
		}

		inputs = get_decoder_inputs(decoders.back());
	}

	// Reverse decoder list and add the stack
	reverse(decoders.begin(), decoders.end());
	new_decoders_selected(decoders);
}

void SubWindow::on_filter_changed(const QString& text)
{
	sort_filter_model_->setFilterFixedString(text);
}

} // namespace decoder_selector
} // namespace subwindows
} // namespace pv
Commit	Line	Data
97378470 SA	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2018 Soeren Apel <soeren@apelpie.net>
	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, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#include <algorithm>
	21
	22	#include <QDebug>
	23	#include <QInputDialog>
	24	#include <QLabel>
b229a1b7	25	#include <QLineEdit>
97378470 SA	26	#include <QPushButton>
	27	#include <QVBoxLayout>
	28
	29	#include "pv/session.hpp"
	30	#include "pv/subwindows/decoder_selector/subwindow.hpp"
	31
	32	using std::reverse;
	33	using std::shared_ptr;
	34
	35	namespace pv {
	36	namespace subwindows {
	37	namespace decoder_selector {
	38
	39
b229a1b7 SA	40	bool QCustomSortFilterProxyModel::filterAcceptsRow(int source_row,
	41	const QModelIndex& source_parent) const
	42	{
	43	// Search model recursively
	44
	45	if (QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent))
	46	return true;
	47
	48	const QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
	49
	50	for (int i = 0; i < sourceModel()->rowCount(index); i++)
	51	if (filterAcceptsRow(i, index))
	52	return true;
	53
	54	return false;
	55	}
	56
	57
e10848e8 SA	58	void QCustomTreeView::currentChanged(const QModelIndex& current,
	59	const QModelIndex& previous)
	60	{
	61	QTreeView::currentChanged(current, previous);
	62	currentChanged(current);
	63	}
	64
	65
97378470 SA	66	SubWindow::SubWindow(Session& session, QWidget* parent) :
	67	SubWindowBase(session, parent),
	68	splitter_(new QSplitter()),
e10848e8	69	tree_view_(new QCustomTreeView()),
c2b80ad9 SA	70	info_box_(new QWidget()),
	71	info_label_header_(new QLabel()),
	72	info_label_body_(new QLabel()),
	73	info_label_footer_(new QLabel()),
a6fab024	74	model_(new DecoderCollectionModel()),
b229a1b7	75	sort_filter_model_(new QCustomSortFilterProxyModel())
97378470 SA	76	{
	77	QVBoxLayout* root_layout = new QVBoxLayout(this);
	78	root_layout->setContentsMargins(0, 0, 0, 0);
	79	root_layout->addWidget(splitter_);
	80
b229a1b7 SA	81	QWidget* upper_container = new QWidget();
	82	QVBoxLayout* upper_layout = new QVBoxLayout(upper_container);
	83	upper_layout->setContentsMargins(0, 5, 0, 0);
	84	QLineEdit* filter = new QLineEdit();
	85	upper_layout->addWidget(filter);
	86	upper_layout->addWidget(tree_view_);
	87
c2b80ad9	88	splitter_->setOrientation(Qt::Vertical);
b229a1b7	89	splitter_->addWidget(upper_container);
c2b80ad9	90	splitter_->addWidget(info_box_);
97378470	91
b229a1b7 SA	92	const QIcon filter_icon(QIcon::fromTheme("search",
	93	QIcon(":/icons/search.svg")));
	94	filter->setClearButtonEnabled(true);
	95	filter->addAction(filter_icon, QLineEdit::LeadingPosition);
	96
a6fab024	97	sort_filter_model_->setSourceModel(model_);
b229a1b7	98	sort_filter_model_->setFilterCaseSensitivity(Qt::CaseInsensitive);
a6fab024 SA	99
a6fab024 SA	100	tree_view_->setModel(sort_filter_model_);
97378470	101	tree_view_->setRootIsDecorated(true);
a6fab024 SA	102	tree_view_->setSortingEnabled(true);
a6fab024 SA	103	tree_view_->sortByColumn(0, Qt::AscendingOrder);
97378470 SA	104
	105	// Hide the columns that hold the detailed item information
	106	tree_view_->hideColumn(2); // ID
	107
c2b80ad9 SA	108	info_box_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
	109	QVBoxLayout* info_box_layout = new QVBoxLayout(info_box_);
	110	info_box_layout->addWidget(info_label_header_);
	111	info_box_layout->addWidget(info_label_body_);
	112	info_box_layout->addWidget(info_label_footer_);
0a7cdbf7	113	Qt::TextInteractionFlags flags = Qt::TextSelectableByMouse \| Qt::TextSelectableByKeyboard;
a8ea0620	114	info_label_header_->setWordWrap(true);
0a7cdbf7	115	info_label_header_->setTextInteractionFlags(flags);
c2b80ad9	116	info_label_body_->setWordWrap(true);
0a7cdbf7	117	info_label_body_->setTextInteractionFlags(flags);
c2b80ad9	118	info_label_body_->setText(tr("Select a decoder to see its description here."));
a8ea0620	119	info_label_footer_->setWordWrap(true);
0a7cdbf7	120	info_label_footer_->setTextInteractionFlags(flags);
c2b80ad9	121
b229a1b7 SA	122	connect(filter, SIGNAL(textChanged(const QString&)),
	123	this, SLOT(on_filter_changed(const QString&)));
	124
e10848e8 SA	125	connect(tree_view_, SIGNAL(currentChanged(const QModelIndex&)),
	126	this, SLOT(on_item_changed(const QModelIndex&)));
	127	connect(tree_view_, SIGNAL(activated(const QModelIndex&)),
	128	this, SLOT(on_item_activated(const QModelIndex&)));
97378470 SA	129
	130	connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)),
	131	&session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>)));
	132	}
	133
	134	bool SubWindow::has_toolbar() const
	135	{
	136	return true;
	137	}
	138
	139	QToolBar* SubWindow::create_toolbar(QWidget *parent) const
	140	{
	141	QToolBar* toolbar = new QToolBar(parent);
	142
	143	return toolbar;
	144	}
	145
8f7c2dce	146	vector<const char> SubWindow::get_decoder_inputs(const srd_decoder d) const
97378470 SA	147	{
	148	vector<const char*> ret_val;
	149
486bcf01 SA	150	for (GSList* li = d->inputs; li; li = li->next)
486bcf01 SA	151	ret_val.push_back((const char*)li->data);
97378470 SA	152
	153	return ret_val;
	154	}
	155
8f7c2dce	156	vector<const srd_decoder> SubWindow::get_decoders_providing(const char output) const
97378470 SA	157	{
	158	vector<const srd_decoder*> ret_val;
	159
486bcf01	160	for (GSList* li = (GSList*)srd_decoder_list(); li; li = li->next) {
97378470 SA	161	const srd_decoder* d = (srd_decoder*)li->data;
	162	assert(d);
	163
	164	if (!d->outputs)
	165	continue;
	166
	167	// TODO For now we ignore that d->outputs is actually a list
	168	if (strncmp((char*)(d->outputs->data), output, strlen(output)) == 0)
	169	ret_val.push_back(d);
	170	}
97378470 SA	171
	172	return ret_val;
	173	}
	174
e10848e8	175	void SubWindow::on_item_changed(const QModelIndex& index)
c2b80ad9 SA	176	{
	177	if (!index.isValid())
	178	return;
	179
	180	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	181	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();
	182
	183	if (decoder_name.isEmpty())
	184	return;
	185
644462a7	186	const srd_decoder* d = srd_decoder_get_by_id(decoder_name.toUtf8());
c2b80ad9 SA	187
	188	const QString id = QString::fromUtf8(d->id);
	189	const QString longname = QString::fromUtf8(d->longname);
	190	const QString desc = QString::fromUtf8(d->desc);
	191	const QString doc = QString::fromUtf8(srd_decoder_doc_get(d));
	192
	193	QString tags;
486bcf01 SA	194	for (GSList* li = (GSList*)d->tags; li; li = li->next) {
486bcf01 SA	195	QString s = (li == (GSList*)d->tags) ?
c2b80ad9 SA	196	tr((char*)li->data) :
	197	QString(tr(", %1")).arg(tr((char*)li->data));
	198	tags.append(s);
	199	}
c2b80ad9 SA	200
	201	info_label_header_->setText(QString("<span style='font-size:large;font-weight:bold'>%1 (%2)</span><br>%3")
	202	.arg(longname, id, desc));
	203	info_label_body_->setText(doc);
	204	info_label_footer_->setText(tr("<p align='right'>Tags: %1</p>").arg(tags));
	205	}
	206
e10848e8	207	void SubWindow::on_item_activated(const QModelIndex& index)
97378470 SA	208	{
	209	if (!index.isValid())
	210	return;
	211
	212	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	213	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();
	214
644462a7	215	const srd_decoder* chosen_decoder = srd_decoder_get_by_id(decoder_name.toUtf8());
97378470 SA	216	if (chosen_decoder == nullptr)
	217	return;
	218
	219	vector<const srd_decoder*> decoders;
	220	decoders.push_back(chosen_decoder);
	221
	222	// If the decoder only depends on logic inputs, we add it and are done
8f7c2dce	223	vector<const char*> inputs = get_decoder_inputs(decoders.front());
97378470 SA	224	if (inputs.size() == 0) {
	225	qWarning() << "Protocol decoder" << decoder_name << "cannot have 0 inputs!";
	226	return;
	227	}
	228
	229	if (strncmp(inputs.at(0), "logic", 5) == 0) {
	230	new_decoders_selected(decoders);
	231	return;
	232	}
	233
	234	// Check if we can automatically fulfill the stacking requirements
	235	while (strncmp(inputs.at(0), "logic", 5) != 0) {
8f7c2dce	236	vector<const srd_decoder*> prov_decoders = get_decoders_providing(inputs.at(0));
97378470 SA	237
	238	if (prov_decoders.size() == 0) {
	239	// Emit warning and add the stack that we could gather so far
	240	qWarning() << "Protocol decoder" << QString::fromUtf8(decoders.back()->id) \
	241	<< "has input that no other decoder provides:" << QString::fromUtf8(inputs.at(0));
	242	break;
	243	}
	244
	245	if (prov_decoders.size() == 1) {
	246	decoders.push_back(prov_decoders.front());
	247	} else {
	248	// Let user decide which one to use
	249	QString caption = QString(tr("Protocol decoder <b>%1</b> requires input type <b>%2</b> " \
	250	"which several decoders provide.<br>Choose which one to use:<br>"))
	251	.arg(QString::fromUtf8(decoders.back()->id), QString::fromUtf8(inputs.at(0)));
	252
	253	QStringList items;
	254	for (const srd_decoder* d : prov_decoders)
	255	items << QString::fromUtf8(d->id) + " (" + QString::fromUtf8(d->longname) + ")";
	256	bool ok_clicked;
	257	QString item = QInputDialog::getItem(this, tr("Choose Decoder"),
	258	tr(caption.toUtf8()), items, 0, false, &ok_clicked);
	259
	260	if ((!ok_clicked) \|\| (item.isEmpty()))
	261	return;
	262
	263	QString d = item.section(' ', 0, 0);
644462a7	264	decoders.push_back(srd_decoder_get_by_id(d.toUtf8()));
97378470 SA	265	}
97378470 SA	266
8f7c2dce	267	inputs = get_decoder_inputs(decoders.back());
97378470 SA	268	}
	269
	270	// Reverse decoder list and add the stack
	271	reverse(decoders.begin(), decoders.end());
	272	new_decoders_selected(decoders);
	273	}
	274
b229a1b7 SA	275	void SubWindow::on_filter_changed(const QString& text)
	276	{
	277	sort_filter_model_->setFilterFixedString(text);
	278	}
	279
97378470 SA	280	} // namespace decoder_selector
	281	} // namespace subwindows
	282	} // namespace pv