[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 <QApplication>
#include <QDebug>
#include <QFontMetrics>
#include <QInputDialog>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QScrollArea>
#include <QVBoxLayout>

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

#include <libsigrokdecode/libsigrokdecode.h>

#define DECODERS_HAVE_TAGS \
	((SRD_PACKAGE_VERSION_MAJOR > 0) || \
	 (SRD_PACKAGE_VERSION_MAJOR == 0) && (SRD_PACKAGE_VERSION_MINOR > 5))

using std::reverse;

namespace pv {
namespace subwindows {
namespace decoder_selector {

const char *initial_notice =
	QT_TRANSLATE_NOOP("pv::subwindows::decoder_selector::SubWindow",
		"Select a decoder to see its description here.");  // clazy:exclude=non-pod-global-static

const int min_width_margin = 75;


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_->setSortCaseSensitivity(Qt::CaseInsensitive);
	sort_filter_model_->setFilterCaseSensitivity(Qt::CaseInsensitive);
	sort_filter_model_->setFilterKeyColumn(-1);

	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

	// Ensure that all decoder tag names are fully visible by default
	tree_view_->resizeColumnToContents(0);

	tree_view_->setIndentation(10);

#if (!DECODERS_HAVE_TAGS)
	tree_view_->expandAll();
	tree_view_->setItemsExpandable(false);
#endif

	QScrollArea* info_label_body_container = new QScrollArea();
	info_label_body_container->setWidget(info_label_body_);
	info_label_body_container->setWidgetResizable(true);

	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_container);
	info_box_layout->addWidget(info_label_footer_);
	info_box_layout->setAlignment(Qt::AlignTop);
	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(QString(tr(initial_notice)));
	info_label_body_->setAlignment(Qt::AlignTop);
	info_label_footer_->setWordWrap(true);
	info_label_footer_->setTextInteractionFlags(flags);

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

	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*>)));

	// Place the keyboard cursor in the filter QLineEdit initially
	filter->setFocus();
}

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

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

	return toolbar;
}

int SubWindow::minimum_width() const
{
	QFontMetrics m(info_label_body_->font());
	const int label_width = m.width(QString(tr(initial_notice)));

	return label_width + min_width_margin;
}

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;

		const int maxlen = 1024;

		// TODO For now we ignore that d->outputs is actually a list
		if (strncmp((char*)(d->outputs->data), output, maxlen) == 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)).trimmed();

	QString tags;
#if DECODERS_HAVE_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);
	}
#endif

	info_label_header_->setText(QString("<span style='font-size:large'><b>%1 (%2)</b></span><br><i>%3</i>")
		.arg(longname, id, desc));
	info_label_body_->setText(doc);

	if (!tags.isEmpty())
		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 (strcmp(inputs.at(0), "logic") == 0) {
		new_decoders_selected(decoders);
		return;
	}

	// Check if we can automatically fulfill the stacking requirements
	while (strcmp(inputs.at(0), "logic") != 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);

	// Expand the "All Decoders" category/tag if the user filtered
	tree_view_->setExpanded(tree_view_->model()->index(0, 0), !text.isEmpty());
}

void SubWindow::on_filter_return_pressed()
{
	int num_visible_decoders = 0;
	QModelIndex last_valid_index;

	QModelIndex index = tree_view_->model()->index(0, 0);

	while (index.isValid()) {
		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()) {
			last_valid_index = index;
			num_visible_decoders++;
		}
		index = tree_view_->indexBelow(index);
	}

	// If only one decoder matches the filter, apply it when the user presses enter
	if (num_visible_decoders == 1)
		tree_view_->activated(last_valid_index);
}

} // 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
c52493c9	22	#include <QApplication>
97378470	23	#include <QDebug>
c52493c9	24	#include <QFontMetrics>
97378470 SA	25	#include <QInputDialog>
97378470 SA	26	#include <QLabel>
b229a1b7	27	#include <QLineEdit>
97378470	28	#include <QPushButton>
9c4ba1c1	29	#include <QScrollArea>
97378470 SA	30	#include <QVBoxLayout>
	31
	32	#include "pv/session.hpp"
	33	#include "pv/subwindows/decoder_selector/subwindow.hpp"
	34
e3521261 SA	35	#include <libsigrokdecode/libsigrokdecode.h>
	36
	37	#define DECODERS_HAVE_TAGS \
	38	((SRD_PACKAGE_VERSION_MAJOR > 0) \|\| \
	39	(SRD_PACKAGE_VERSION_MAJOR == 0) && (SRD_PACKAGE_VERSION_MINOR > 5))
	40
97378470	41	using std::reverse;
97378470 SA	42
	43	namespace pv {
	44	namespace subwindows {
	45	namespace decoder_selector {
	46
457555a8	47	const char *initial_notice =
1fd847fe SA	48	QT_TRANSLATE_NOOP("pv::subwindows::decoder_selector::SubWindow",
1fd847fe SA	49	"Select a decoder to see its description here."); // clazy:exclude=non-pod-global-static
457555a8	50
c52493c9 SA	51	const int min_width_margin = 75;
c52493c9 SA	52
97378470	53
b229a1b7 SA	54	bool QCustomSortFilterProxyModel::filterAcceptsRow(int source_row,
	55	const QModelIndex& source_parent) const
	56	{
	57	// Search model recursively
	58
	59	if (QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent))
	60	return true;
	61
	62	const QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
	63
	64	for (int i = 0; i < sourceModel()->rowCount(index); i++)
	65	if (filterAcceptsRow(i, index))
	66	return true;
	67
	68	return false;
	69	}
	70
	71
e10848e8 SA	72	void QCustomTreeView::currentChanged(const QModelIndex& current,
	73	const QModelIndex& previous)
	74	{
	75	QTreeView::currentChanged(current, previous);
	76	currentChanged(current);
	77	}
	78
	79
97378470 SA	80	SubWindow::SubWindow(Session& session, QWidget* parent) :
	81	SubWindowBase(session, parent),
	82	splitter_(new QSplitter()),
e10848e8	83	tree_view_(new QCustomTreeView()),
c2b80ad9 SA	84	info_box_(new QWidget()),
	85	info_label_header_(new QLabel()),
	86	info_label_body_(new QLabel()),
	87	info_label_footer_(new QLabel()),
a6fab024	88	model_(new DecoderCollectionModel()),
b229a1b7	89	sort_filter_model_(new QCustomSortFilterProxyModel())
97378470 SA	90	{
	91	QVBoxLayout* root_layout = new QVBoxLayout(this);
	92	root_layout->setContentsMargins(0, 0, 0, 0);
	93	root_layout->addWidget(splitter_);
	94
b229a1b7 SA	95	QWidget* upper_container = new QWidget();
	96	QVBoxLayout* upper_layout = new QVBoxLayout(upper_container);
	97	upper_layout->setContentsMargins(0, 5, 0, 0);
	98	QLineEdit* filter = new QLineEdit();
	99	upper_layout->addWidget(filter);
	100	upper_layout->addWidget(tree_view_);
	101
c2b80ad9	102	splitter_->setOrientation(Qt::Vertical);
b229a1b7	103	splitter_->addWidget(upper_container);
c2b80ad9	104	splitter_->addWidget(info_box_);
97378470	105
b229a1b7 SA	106	const QIcon filter_icon(QIcon::fromTheme("search",
	107	QIcon(":/icons/search.svg")));
	108	filter->setClearButtonEnabled(true);
	109	filter->addAction(filter_icon, QLineEdit::LeadingPosition);
	110
e3521261	111
a6fab024	112	sort_filter_model_->setSourceModel(model_);
e3521261	113	sort_filter_model_->setSortCaseSensitivity(Qt::CaseInsensitive);
b229a1b7	114	sort_filter_model_->setFilterCaseSensitivity(Qt::CaseInsensitive);
b032da62	115	sort_filter_model_->setFilterKeyColumn(-1);
a6fab024 SA	116
a6fab024 SA	117	tree_view_->setModel(sort_filter_model_);
97378470	118	tree_view_->setRootIsDecorated(true);
a6fab024 SA	119	tree_view_->setSortingEnabled(true);
a6fab024 SA	120	tree_view_->sortByColumn(0, Qt::AscendingOrder);
97378470 SA	121
	122	// Hide the columns that hold the detailed item information
	123	tree_view_->hideColumn(2); // ID
	124
b54aeaea UH	125	// Ensure that all decoder tag names are fully visible by default
	126	tree_view_->resizeColumnToContents(0);
	127
5da32ad6 UH	128	tree_view_->setIndentation(10);
5da32ad6 UH	129
e3521261 SA	130	#if (!DECODERS_HAVE_TAGS)
	131	tree_view_->expandAll();
	132	tree_view_->setItemsExpandable(false);
	133	#endif
	134
9c4ba1c1 SA	135	QScrollArea* info_label_body_container = new QScrollArea();
	136	info_label_body_container->setWidget(info_label_body_);
	137	info_label_body_container->setWidgetResizable(true);
	138
c2b80ad9 SA	139	info_box_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
	140	QVBoxLayout* info_box_layout = new QVBoxLayout(info_box_);
	141	info_box_layout->addWidget(info_label_header_);
9c4ba1c1	142	info_box_layout->addWidget(info_label_body_container);
c2b80ad9	143	info_box_layout->addWidget(info_label_footer_);
a7961b36	144	info_box_layout->setAlignment(Qt::AlignTop);
0a7cdbf7	145	Qt::TextInteractionFlags flags = Qt::TextSelectableByMouse \| Qt::TextSelectableByKeyboard;
a8ea0620	146	info_label_header_->setWordWrap(true);
0a7cdbf7	147	info_label_header_->setTextInteractionFlags(flags);
c2b80ad9	148	info_label_body_->setWordWrap(true);
0a7cdbf7	149	info_label_body_->setTextInteractionFlags(flags);
457555a8	150	info_label_body_->setText(QString(tr(initial_notice)));
e0cfcb0e	151	info_label_body_->setAlignment(Qt::AlignTop);
a8ea0620	152	info_label_footer_->setWordWrap(true);
0a7cdbf7	153	info_label_footer_->setTextInteractionFlags(flags);
c2b80ad9	154
b229a1b7 SA	155	connect(filter, SIGNAL(textChanged(const QString&)),
b229a1b7 SA	156	this, SLOT(on_filter_changed(const QString&)));
66ab3d70 UH	157	connect(filter, SIGNAL(returnPressed()),
66ab3d70 UH	158	this, SLOT(on_filter_return_pressed()));
b229a1b7	159
e10848e8 SA	160	connect(tree_view_, SIGNAL(currentChanged(const QModelIndex&)),
	161	this, SLOT(on_item_changed(const QModelIndex&)));
	162	connect(tree_view_, SIGNAL(activated(const QModelIndex&)),
	163	this, SLOT(on_item_activated(const QModelIndex&)));
97378470 SA	164
	165	connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)),
	166	&session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>)));
39cc336a UH	167
	168	// Place the keyboard cursor in the filter QLineEdit initially
	169	filter->setFocus();
97378470 SA	170	}
	171
	172	bool SubWindow::has_toolbar() const
	173	{
	174	return true;
	175	}
	176
	177	QToolBar* SubWindow::create_toolbar(QWidget *parent) const
	178	{
	179	QToolBar* toolbar = new QToolBar(parent);
	180
	181	return toolbar;
	182	}
	183
c52493c9 SA	184	int SubWindow::minimum_width() const
	185	{
	186	QFontMetrics m(info_label_body_->font());
457555a8	187	const int label_width = m.width(QString(tr(initial_notice)));
c52493c9 SA	188
	189	return label_width + min_width_margin;
	190	}
	191
8f7c2dce	192	vector<const char> SubWindow::get_decoder_inputs(const srd_decoder d) const
97378470 SA	193	{
	194	vector<const char*> ret_val;
	195
486bcf01 SA	196	for (GSList* li = d->inputs; li; li = li->next)
486bcf01 SA	197	ret_val.push_back((const char*)li->data);
97378470 SA	198
	199	return ret_val;
	200	}
	201
8f7c2dce	202	vector<const srd_decoder> SubWindow::get_decoders_providing(const char output) const
97378470 SA	203	{
	204	vector<const srd_decoder*> ret_val;
	205
486bcf01	206	for (GSList* li = (GSList*)srd_decoder_list(); li; li = li->next) {
97378470 SA	207	const srd_decoder* d = (srd_decoder*)li->data;
	208	assert(d);
	209
	210	if (!d->outputs)
	211	continue;
	212
0e2ba0cc UH	213	const int maxlen = 1024;
0e2ba0cc UH	214
97378470	215	// TODO For now we ignore that d->outputs is actually a list
0e2ba0cc	216	if (strncmp((char*)(d->outputs->data), output, maxlen) == 0)
97378470 SA	217	ret_val.push_back(d);
97378470 SA	218	}
97378470 SA	219
	220	return ret_val;
	221	}
	222
e10848e8	223	void SubWindow::on_item_changed(const QModelIndex& index)
c2b80ad9 SA	224	{
	225	if (!index.isValid())
	226	return;
	227
	228	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	229	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();
	230
	231	if (decoder_name.isEmpty())
	232	return;
	233
644462a7	234	const srd_decoder* d = srd_decoder_get_by_id(decoder_name.toUtf8());
c2b80ad9 SA	235
	236	const QString id = QString::fromUtf8(d->id);
	237	const QString longname = QString::fromUtf8(d->longname);
	238	const QString desc = QString::fromUtf8(d->desc);
9c4ba1c1	239	const QString doc = QString::fromUtf8(srd_decoder_doc_get(d)).trimmed();
c2b80ad9 SA	240
c2b80ad9 SA	241	QString tags;
e3521261	242	#if DECODERS_HAVE_TAGS
486bcf01 SA	243	for (GSList* li = (GSList*)d->tags; li; li = li->next) {
486bcf01 SA	244	QString s = (li == (GSList*)d->tags) ?
c2b80ad9 SA	245	tr((char*)li->data) :
	246	QString(tr(", %1")).arg(tr((char*)li->data));
	247	tags.append(s);
	248	}
e3521261	249	#endif
c2b80ad9	250
a51c7f7d	251	info_label_header_->setText(QString("<span style='font-size:large'><b>%1 (%2)</b></span><br><i>%3</i>")
c2b80ad9 SA	252	.arg(longname, id, desc));
c2b80ad9 SA	253	info_label_body_->setText(doc);
e3521261 SA	254
	255	if (!tags.isEmpty())
	256	info_label_footer_->setText(tr("<p align='right'>Tags: %1</p>").arg(tags));
c2b80ad9 SA	257	}
c2b80ad9 SA	258
e10848e8	259	void SubWindow::on_item_activated(const QModelIndex& index)
97378470 SA	260	{
	261	if (!index.isValid())
	262	return;
	263
	264	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	265	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();
	266
644462a7	267	const srd_decoder* chosen_decoder = srd_decoder_get_by_id(decoder_name.toUtf8());
97378470 SA	268	if (chosen_decoder == nullptr)
	269	return;
	270
	271	vector<const srd_decoder*> decoders;
	272	decoders.push_back(chosen_decoder);
	273
	274	// If the decoder only depends on logic inputs, we add it and are done
8f7c2dce	275	vector<const char*> inputs = get_decoder_inputs(decoders.front());
97378470 SA	276	if (inputs.size() == 0) {
	277	qWarning() << "Protocol decoder" << decoder_name << "cannot have 0 inputs!";
	278	return;
	279	}
	280
0e2ba0cc	281	if (strcmp(inputs.at(0), "logic") == 0) {
97378470 SA	282	new_decoders_selected(decoders);
	283	return;
	284	}
	285
	286	// Check if we can automatically fulfill the stacking requirements
0e2ba0cc	287	while (strcmp(inputs.at(0), "logic") != 0) {
8f7c2dce	288	vector<const srd_decoder*> prov_decoders = get_decoders_providing(inputs.at(0));
97378470 SA	289
	290	if (prov_decoders.size() == 0) {
	291	// Emit warning and add the stack that we could gather so far
	292	qWarning() << "Protocol decoder" << QString::fromUtf8(decoders.back()->id) \
	293	<< "has input that no other decoder provides:" << QString::fromUtf8(inputs.at(0));
	294	break;
	295	}
	296
	297	if (prov_decoders.size() == 1) {
	298	decoders.push_back(prov_decoders.front());
	299	} else {
	300	// Let user decide which one to use
	301	QString caption = QString(tr("Protocol decoder <b>%1</b> requires input type <b>%2</b> " \
	302	"which several decoders provide.<br>Choose which one to use:<br>"))
	303	.arg(QString::fromUtf8(decoders.back()->id), QString::fromUtf8(inputs.at(0)));
	304
	305	QStringList items;
	306	for (const srd_decoder* d : prov_decoders)
	307	items << QString::fromUtf8(d->id) + " (" + QString::fromUtf8(d->longname) + ")";
	308	bool ok_clicked;
	309	QString item = QInputDialog::getItem(this, tr("Choose Decoder"),
	310	tr(caption.toUtf8()), items, 0, false, &ok_clicked);
	311
	312	if ((!ok_clicked) \|\| (item.isEmpty()))
	313	return;
	314
	315	QString d = item.section(' ', 0, 0);
644462a7	316	decoders.push_back(srd_decoder_get_by_id(d.toUtf8()));
97378470 SA	317	}
97378470 SA	318
8f7c2dce	319	inputs = get_decoder_inputs(decoders.back());
97378470 SA	320	}
	321
	322	// Reverse decoder list and add the stack
	323	reverse(decoders.begin(), decoders.end());
	324	new_decoders_selected(decoders);
	325	}
	326
b229a1b7 SA	327	void SubWindow::on_filter_changed(const QString& text)
	328	{
	329	sort_filter_model_->setFilterFixedString(text);
8c9e323b UH	330
	331	// Expand the "All Decoders" category/tag if the user filtered
	332	tree_view_->setExpanded(tree_view_->model()->index(0, 0), !text.isEmpty());
b229a1b7 SA	333	}
b229a1b7 SA	334
66ab3d70 UH	335	void SubWindow::on_filter_return_pressed()
	336	{
	337	int num_visible_decoders = 0;
	338	QModelIndex last_valid_index;
	339
	340	QModelIndex index = tree_view_->model()->index(0, 0);
	341
	342	while (index.isValid()) {
	343	QModelIndex id_index = index.model()->index(index.row(), 2, index.parent());
	344	QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString();
	345	if (!decoder_name.isEmpty()) {
	346	last_valid_index = index;
	347	num_visible_decoders++;
	348	}
	349	index = tree_view_->indexBelow(index);
	350	}
	351
	352	// If only one decoder matches the filter, apply it when the user presses enter
	353	if (num_visible_decoders == 1)
	354	tree_view_->activated(last_valid_index);
	355	}
	356
97378470 SA	357	} // namespace decoder_selector
	358	} // namespace subwindows
	359	} // namespace pv