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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk> | |
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 <cassert> | |
21 | ||
22 | #include <QDebug> | |
23 | #include <QMessageBox> | |
24 | ||
25 | #include "pv/session.hpp" | |
26 | ||
27 | #include "storeprogress.hpp" | |
28 | ||
29 | using std::map; | |
30 | using std::pair; | |
31 | using std::shared_ptr; | |
32 | using std::string; | |
33 | ||
34 | using Glib::VariantBase; | |
35 | ||
36 | namespace pv { | |
37 | namespace dialogs { | |
38 | ||
39 | StoreProgress::StoreProgress(const QString &file_name, | |
40 | const shared_ptr<sigrok::OutputFormat> output_format, | |
41 | const map<string, VariantBase> &options, | |
42 | const pair<uint64_t, uint64_t> sample_range, | |
43 | const Session &session, QWidget *parent) : | |
44 | QProgressDialog(tr("Saving..."), tr("Cancel"), 0, 0, parent), | |
45 | session_(file_name.toStdString(), output_format, options, sample_range, | |
46 | session), | |
47 | showing_error_(false) | |
48 | { | |
49 | connect(&session_, SIGNAL(progress_updated()), | |
50 | this, SLOT(on_progress_updated())); | |
51 | connect(&session_, SIGNAL(store_successful()), | |
52 | &session, SLOT(on_data_saved())); | |
53 | connect(this, SIGNAL(canceled()), this, SLOT(on_cancel())); | |
54 | ||
55 | // Since we're not setting any progress in case of an error, the dialog | |
56 | // will pop up after the minimumDuration time has been reached - 4000 ms | |
57 | // by default. | |
58 | // We do not want this as it overlaps with the error message box, so we | |
59 | // set the minimumDuration to 0 so that it only appears when we feed it | |
60 | // progress data. Then, call reset() to prevent the progress dialog from | |
61 | // popping up anyway. This would happen in Qt5 because the behavior was | |
62 | // changed in such a way that the duration timer is started by the | |
63 | // constructor. We don't want that and reset() stops the timer, so we | |
64 | // use it. | |
65 | setMinimumDuration(0); | |
66 | reset(); | |
67 | } | |
68 | ||
69 | StoreProgress::~StoreProgress() | |
70 | { | |
71 | session_.wait(); | |
72 | } | |
73 | ||
74 | void StoreProgress::run() | |
75 | { | |
76 | if (session_.start()) | |
77 | show(); | |
78 | else | |
79 | show_error(); | |
80 | } | |
81 | ||
82 | void StoreProgress::show_error() | |
83 | { | |
84 | showing_error_ = true; | |
85 | ||
86 | qDebug() << "Error trying to save:" << session_.error(); | |
87 | ||
88 | QMessageBox msg(parentWidget()); | |
89 | msg.setText(tr("Failed to save session.") + "\n\n" + session_.error()); | |
90 | msg.setStandardButtons(QMessageBox::Ok); | |
91 | msg.setIcon(QMessageBox::Warning); | |
92 | msg.exec(); | |
93 | ||
94 | close(); | |
95 | } | |
96 | ||
97 | void StoreProgress::closeEvent(QCloseEvent*) | |
98 | { | |
99 | session_.cancel(); | |
100 | ||
101 | // Closing doesn't mean we're going to be destroyed because our parent | |
102 | // still owns our handle. Make sure this stale instance doesn't hang around. | |
103 | deleteLater(); | |
104 | } | |
105 | ||
106 | void StoreProgress::on_progress_updated() | |
107 | { | |
108 | const pair<int, int> p = session_.progress(); | |
109 | assert(p.first <= p.second); | |
110 | ||
111 | if (p.second) { | |
112 | setValue(p.first); | |
113 | setMaximum(p.second); | |
114 | } else { | |
115 | const QString err = session_.error(); | |
116 | if (err.isEmpty()) | |
117 | close(); | |
118 | else if (!showing_error_) | |
119 | show_error(); | |
120 | } | |
121 | } | |
122 | ||
123 | void StoreProgress::on_cancel() | |
124 | { | |
125 | session_.cancel(); | |
126 | } | |
127 | ||
128 | } // namespace dialogs | |
129 | } // namespace pv |