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