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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()), | |
43 | model_(new DecoderCollectionModel()) | |
44 | { | |
45 | QVBoxLayout* root_layout = new QVBoxLayout(this); | |
46 | root_layout->setContentsMargins(0, 0, 0, 0); | |
47 | root_layout->addWidget(splitter_); | |
48 | ||
49 | splitter_->addWidget(tree_view_); | |
50 | ||
51 | tree_view_->setModel(model_); | |
52 | tree_view_->setRootIsDecorated(true); | |
53 | ||
54 | // Hide the columns that hold the detailed item information | |
55 | tree_view_->hideColumn(2); // ID | |
56 | ||
57 | connect(tree_view_, SIGNAL(doubleClicked(const QModelIndex&)), | |
58 | this, SLOT(on_item_double_clicked(const QModelIndex&))); | |
59 | ||
60 | connect(this, SIGNAL(new_decoders_selected(vector<const srd_decoder*>)), | |
61 | &session, SLOT(on_new_decoders_selected(vector<const srd_decoder*>))); | |
62 | } | |
63 | ||
64 | bool SubWindow::has_toolbar() const | |
65 | { | |
66 | return true; | |
67 | } | |
68 | ||
69 | QToolBar* SubWindow::create_toolbar(QWidget *parent) const | |
70 | { | |
71 | QToolBar* toolbar = new QToolBar(parent); | |
72 | ||
73 | return toolbar; | |
74 | } | |
75 | ||
76 | const srd_decoder* SubWindow::get_srd_decoder_from_id(QString id) const | |
77 | { | |
78 | const srd_decoder* ret_val = nullptr; | |
79 | ||
80 | GSList* l = g_slist_copy((GSList*)srd_decoder_list()); | |
81 | for (GSList* li = l; li; li = li->next) { | |
82 | const srd_decoder* d = (srd_decoder*)li->data; | |
83 | assert(d); | |
84 | ||
85 | if (QString::fromUtf8(d->id) == id) | |
86 | ret_val = d; | |
87 | } | |
88 | g_slist_free(l); | |
89 | ||
90 | return ret_val; | |
91 | } | |
92 | ||
93 | vector<const char*> SubWindow::decoder_inputs(const srd_decoder* d) const | |
94 | { | |
95 | vector<const char*> ret_val; | |
96 | ||
97 | GSList* l = g_slist_copy(d->inputs); | |
98 | for (GSList* li = l; li; li = li->next) { | |
99 | const char* input = (const char*)li->data; | |
100 | ret_val.push_back(input); | |
101 | } | |
102 | g_slist_free(l); | |
103 | ||
104 | return ret_val; | |
105 | } | |
106 | ||
107 | vector<const srd_decoder*> SubWindow::decoders_providing(const char* output) const | |
108 | { | |
109 | vector<const srd_decoder*> ret_val; | |
110 | ||
111 | GSList* l = g_slist_copy((GSList*)srd_decoder_list()); | |
112 | for (GSList* li = l; li; li = li->next) { | |
113 | const srd_decoder* d = (srd_decoder*)li->data; | |
114 | assert(d); | |
115 | ||
116 | if (!d->outputs) | |
117 | continue; | |
118 | ||
119 | // TODO For now we ignore that d->outputs is actually a list | |
120 | if (strncmp((char*)(d->outputs->data), output, strlen(output)) == 0) | |
121 | ret_val.push_back(d); | |
122 | } | |
123 | g_slist_free(l); | |
124 | ||
125 | return ret_val; | |
126 | } | |
127 | ||
128 | void SubWindow::on_item_double_clicked(const QModelIndex& index) | |
129 | { | |
130 | if (!index.isValid()) | |
131 | return; | |
132 | ||
133 | QModelIndex id_index = index.model()->index(index.row(), 2, index.parent()); | |
134 | QString decoder_name = index.model()->data(id_index, Qt::DisplayRole).toString(); | |
135 | ||
136 | const srd_decoder* chosen_decoder = get_srd_decoder_from_id(decoder_name); | |
137 | if (chosen_decoder == nullptr) | |
138 | return; | |
139 | ||
140 | vector<const srd_decoder*> decoders; | |
141 | decoders.push_back(chosen_decoder); | |
142 | ||
143 | // If the decoder only depends on logic inputs, we add it and are done | |
144 | vector<const char*> inputs = decoder_inputs(decoders.front()); | |
145 | if (inputs.size() == 0) { | |
146 | qWarning() << "Protocol decoder" << decoder_name << "cannot have 0 inputs!"; | |
147 | return; | |
148 | } | |
149 | ||
150 | if (strncmp(inputs.at(0), "logic", 5) == 0) { | |
151 | new_decoders_selected(decoders); | |
152 | return; | |
153 | } | |
154 | ||
155 | // Check if we can automatically fulfill the stacking requirements | |
156 | while (strncmp(inputs.at(0), "logic", 5) != 0) { | |
157 | vector<const srd_decoder*> prov_decoders = decoders_providing(inputs.at(0)); | |
158 | ||
159 | if (prov_decoders.size() == 0) { | |
160 | // Emit warning and add the stack that we could gather so far | |
161 | qWarning() << "Protocol decoder" << QString::fromUtf8(decoders.back()->id) \ | |
162 | << "has input that no other decoder provides:" << QString::fromUtf8(inputs.at(0)); | |
163 | break; | |
164 | } | |
165 | ||
166 | if (prov_decoders.size() == 1) { | |
167 | decoders.push_back(prov_decoders.front()); | |
168 | } else { | |
169 | // Let user decide which one to use | |
170 | QString caption = QString(tr("Protocol decoder <b>%1</b> requires input type <b>%2</b> " \ | |
171 | "which several decoders provide.<br>Choose which one to use:<br>")) | |
172 | .arg(QString::fromUtf8(decoders.back()->id), QString::fromUtf8(inputs.at(0))); | |
173 | ||
174 | QStringList items; | |
175 | for (const srd_decoder* d : prov_decoders) | |
176 | items << QString::fromUtf8(d->id) + " (" + QString::fromUtf8(d->longname) + ")"; | |
177 | bool ok_clicked; | |
178 | QString item = QInputDialog::getItem(this, tr("Choose Decoder"), | |
179 | tr(caption.toUtf8()), items, 0, false, &ok_clicked); | |
180 | ||
181 | if ((!ok_clicked) || (item.isEmpty())) | |
182 | return; | |
183 | ||
184 | QString d = item.section(' ', 0, 0); | |
185 | decoders.push_back(get_srd_decoder_from_id(d)); | |
186 | } | |
187 | ||
188 | inputs = decoder_inputs(decoders.back()); | |
189 | } | |
190 | ||
191 | // Reverse decoder list and add the stack | |
192 | reverse(decoders.begin(), decoders.end()); | |
193 | new_decoders_selected(decoders); | |
194 | } | |
195 | ||
196 | } // namespace decoder_selector | |
197 | } // namespace subwindows | |
198 | } // namespace pv |