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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 | ||
22 | #include <QDebug> | |
23 | #include <QInputDialog> | |
24 | #include <QLabel> | |
25 | #include <QPushButton> | |
26 | #include <QVBoxLayout> | |
27 | ||
28 | #include "pv/session.hpp" | |
29 | #include "pv/subwindows/decoder_selector/subwindow.hpp" | |
30 | ||
31 | using std::reverse; | |
32 | using std::shared_ptr; | |
33 | ||
34 | namespace pv { | |
35 | namespace subwindows { | |
36 | namespace decoder_selector { | |
37 | ||
38 | ||
39 | SubWindow::SubWindow(Session& session, QWidget* parent) : | |
40 | SubWindowBase(session, parent), | |
41 | splitter_(new QSplitter()), | |
42 | tree_view_(new QTreeView()), | |
c2b80ad9 SA |
43 | info_box_(new QWidget()), |
44 | info_label_header_(new QLabel()), | |
45 | info_label_body_(new QLabel()), | |
46 | info_label_footer_(new QLabel()), | |
97378470 SA |
47 | model_(new DecoderCollectionModel()) |
48 | { | |
49 | QVBoxLayout* root_layout = new QVBoxLayout(this); | |
50 | root_layout->setContentsMargins(0, 0, 0, 0); | |
51 | root_layout->addWidget(splitter_); | |
52 | ||
c2b80ad9 | 53 | splitter_->setOrientation(Qt::Vertical); |
97378470 | 54 | splitter_->addWidget(tree_view_); |
c2b80ad9 | 55 | splitter_->addWidget(info_box_); |
97378470 SA |
56 | |
57 | tree_view_->setModel(model_); | |
58 | tree_view_->setRootIsDecorated(true); | |
59 | ||
60 | // Hide the columns that hold the detailed item information | |
61 | tree_view_->hideColumn(2); // ID | |
62 | ||
c2b80ad9 SA |
63 | info_box_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); |
64 | QVBoxLayout* info_box_layout = new QVBoxLayout(info_box_); | |
65 | info_box_layout->addWidget(info_label_header_); | |
66 | info_box_layout->addWidget(info_label_body_); | |
67 | info_box_layout->addWidget(info_label_footer_); | |
68 | info_label_body_->setWordWrap(true); | |
69 | info_label_body_->setText(tr("Select a decoder to see its description here.")); | |
70 | ||
71 | connect(tree_view_, SIGNAL(clicked(const QModelIndex&)), | |
72 | this, SLOT(on_item_clicked(const QModelIndex&))); | |
97378470 SA |
73 | connect(tree_view_, SIGNAL(doubleClicked(const QModelIndex&)), |
74 | this, SLOT(on_item_double_clicked(const QModelIndex&))); | |
75 | ||
76 | connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)), | |
77 | &session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>))); | |
78 | } | |
79 | ||
80 | bool SubWindow::has_toolbar() const | |
81 | { | |
82 | return true; | |
83 | } | |
84 | ||
85 | QToolBar* SubWindow::create_toolbar(QWidget *parent) const | |
86 | { | |
87 | QToolBar* toolbar = new QToolBar(parent); | |
88 | ||
89 | return toolbar; | |
90 | } | |
91 | ||
92 | const srd_decoder* SubWindow::get_srd_decoder_from_id(QString id) const | |
93 | { | |
94 | const srd_decoder* ret_val = nullptr; | |
95 | ||
96 | GSList* l = g_slist_copy((GSList*)srd_decoder_list()); | |
97 | for (GSList* li = l; li; li = li->next) { | |
98 | const srd_decoder* d = (srd_decoder*)li->data; | |
99 | assert(d); | |
100 | ||
101 | if (QString::fromUtf8(d->id) == id) | |
102 | ret_val = d; | |
103 | } | |
104 | g_slist_free(l); | |
105 | ||
106 | return ret_val; | |
107 | } | |
108 | ||
109 | vector<const char*> SubWindow::decoder_inputs(const srd_decoder* d) const | |
110 | { | |
111 | vector<const char*> ret_val; | |
112 | ||
113 | GSList* l = g_slist_copy(d->inputs); | |
114 | for (GSList* li = l; li; li = li->next) { | |
115 | const char* input = (const char*)li->data; | |
116 | ret_val.push_back(input); | |
117 | } | |
118 | g_slist_free(l); | |
119 | ||
120 | return ret_val; | |
121 | } | |
122 | ||
123 | vector<const srd_decoder*> SubWindow::decoders_providing(const char* output) const | |
124 | { | |
125 | vector<const srd_decoder*> ret_val; | |
126 | ||
127 | GSList* l = g_slist_copy((GSList*)srd_decoder_list()); | |
128 | for (GSList* li = l; li; li = li->next) { | |
129 | const srd_decoder* d = (srd_decoder*)li->data; | |
130 | assert(d); | |
131 | ||
132 | if (!d->outputs) | |
133 | continue; | |
134 | ||
135 | // TODO For now we ignore that d->outputs is actually a list | |
136 | if (strncmp((char*)(d->outputs->data), output, strlen(output)) == 0) | |
137 | ret_val.push_back(d); | |
138 | } | |
139 | g_slist_free(l); | |
140 | ||
141 | return ret_val; | |
142 | } | |
143 | ||
c2b80ad9 SA |
144 | void SubWindow::on_item_clicked(const QModelIndex& index) |
145 | { | |
146 | if (!index.isValid()) | |
147 | return; | |
148 | ||
149 | QModelIndex id_index = index.model()->index(index.row(), 2, index.parent()); | |
150 | QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString(); | |
151 | ||
152 | if (decoder_name.isEmpty()) | |
153 | return; | |
154 | ||
155 | const srd_decoder* d = get_srd_decoder_from_id(decoder_name); | |
156 | ||
157 | const QString id = QString::fromUtf8(d->id); | |
158 | const QString longname = QString::fromUtf8(d->longname); | |
159 | const QString desc = QString::fromUtf8(d->desc); | |
160 | const QString doc = QString::fromUtf8(srd_decoder_doc_get(d)); | |
161 | ||
162 | QString tags; | |
163 | GSList* l = g_slist_copy((GSList*)d->tags); | |
164 | for (GSList* li = l; li; li = li->next) { | |
165 | QString s = (li == l) ? | |
166 | tr((char*)li->data) : | |
167 | QString(tr(", %1")).arg(tr((char*)li->data)); | |
168 | tags.append(s); | |
169 | } | |
170 | g_slist_free(l); | |
171 | ||
172 | info_label_header_->setText(QString("<span style='font-size:large;font-weight:bold'>%1 (%2)</span><br>%3") | |
173 | .arg(longname, id, desc)); | |
174 | info_label_body_->setText(doc); | |
175 | info_label_footer_->setText(tr("<p align='right'>Tags: %1</p>").arg(tags)); | |
176 | } | |
177 | ||
97378470 SA |
178 | void SubWindow::on_item_double_clicked(const QModelIndex& index) |
179 | { | |
180 | if (!index.isValid()) | |
181 | return; | |
182 | ||
183 | QModelIndex id_index = index.model()->index(index.row(), 2, index.parent()); | |
184 | QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString(); | |
185 | ||
186 | const srd_decoder* chosen_decoder = get_srd_decoder_from_id(decoder_name); | |
187 | if (chosen_decoder == nullptr) | |
188 | return; | |
189 | ||
190 | vector<const srd_decoder*> decoders; | |
191 | decoders.push_back(chosen_decoder); | |
192 | ||
193 | // If the decoder only depends on logic inputs, we add it and are done | |
194 | vector<const char*> inputs = decoder_inputs(decoders.front()); | |
195 | if (inputs.size() == 0) { | |
196 | qWarning() << "Protocol decoder" << decoder_name << "cannot have 0 inputs!"; | |
197 | return; | |
198 | } | |
199 | ||
200 | if (strncmp(inputs.at(0), "logic", 5) == 0) { | |
201 | new_decoders_selected(decoders); | |
202 | return; | |
203 | } | |
204 | ||
205 | // Check if we can automatically fulfill the stacking requirements | |
206 | while (strncmp(inputs.at(0), "logic", 5) != 0) { | |
207 | vector<const srd_decoder*> prov_decoders = decoders_providing(inputs.at(0)); | |
208 | ||
209 | if (prov_decoders.size() == 0) { | |
210 | // Emit warning and add the stack that we could gather so far | |
211 | qWarning() << "Protocol decoder" << QString::fromUtf8(decoders.back()->id) \ | |
212 | << "has input that no other decoder provides:" << QString::fromUtf8(inputs.at(0)); | |
213 | break; | |
214 | } | |
215 | ||
216 | if (prov_decoders.size() == 1) { | |
217 | decoders.push_back(prov_decoders.front()); | |
218 | } else { | |
219 | // Let user decide which one to use | |
220 | QString caption = QString(tr("Protocol decoder <b>%1</b> requires input type <b>%2</b> " \ | |
221 | "which several decoders provide.<br>Choose which one to use:<br>")) | |
222 | .arg(QString::fromUtf8(decoders.back()->id), QString::fromUtf8(inputs.at(0))); | |
223 | ||
224 | QStringList items; | |
225 | for (const srd_decoder* d : prov_decoders) | |
226 | items << QString::fromUtf8(d->id) + " (" + QString::fromUtf8(d->longname) + ")"; | |
227 | bool ok_clicked; | |
228 | QString item = QInputDialog::getItem(this, tr("Choose Decoder"), | |
229 | tr(caption.toUtf8()), items, 0, false, &ok_clicked); | |
230 | ||
231 | if ((!ok_clicked) || (item.isEmpty())) | |
232 | return; | |
233 | ||
234 | QString d = item.section(' ', 0, 0); | |
235 | decoders.push_back(get_srd_decoder_from_id(d)); | |
236 | } | |
237 | ||
238 | inputs = decoder_inputs(decoders.back()); | |
239 | } | |
240 | ||
241 | // Reverse decoder list and add the stack | |
242 | reverse(decoders.begin(), decoders.end()); | |
243 | new_decoders_selected(decoders); | |
244 | } | |
245 | ||
246 | } // namespace decoder_selector | |
247 | } // namespace subwindows | |
248 | } // namespace pv |