1 /* QWinFF - a qt4 gui frontend for ffmpeg
2 * Copyright (C) 2011-2013 Timothy Lin <lzh9102@gmail.com>
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "exepath.h"
19 #include <QMap>
20 #include <QSettings>
21 #include <QProcess>
22
23 #ifdef OPERATION_TIMEOUT
24 #define TIMEOUT OPERATION_TIMEOUT
25 #else
26 #define TIMEOUT 30000
27 #endif
28
29 namespace
30 {
31 typedef QMap<QString, QString> Map;
32 Map program_path;
33 }
34
setPath(QString program,QString path)35 void ExePath::setPath(QString program, QString path)
36 {
37 program_path.insert(program, path);
38 }
39
getPath(QString program)40 QString ExePath::getPath(QString program)
41 {
42 if (program_path.contains(program))
43 return program_path[program];
44 else
45 Q_ASSERT_X(false, "ExePath::getPath"
46 , QString("Program path of '%1' has not been set.")
47 .arg(program).toStdString().c_str());
48 return "";
49 }
50
checkProgramAvailability(QString program)51 bool ExePath::checkProgramAvailability(QString program)
52 {
53 if (!program_path.contains(program)) // the program is not set
54 return false;
55 QProcess proc;
56 QStringList param;
57 // try to run the program
58 proc.start(ExePath::getPath(program), param);
59 if (!proc.waitForStarted(TIMEOUT))
60 return false; // failed to start the program
61 // successfully started the program, kill it immediately
62 proc.kill();
63 proc.waitForFinished(TIMEOUT);
64 return true;
65 }
66
saveSettings()67 void ExePath::saveSettings()
68 {
69 QSettings settings;
70 foreach (QString name, program_path.keys()) {
71 QString path = program_path[name];
72 settings.setValue("exepath/" + name, path);
73 }
74 }
75
loadSettings()76 void ExePath::loadSettings()
77 {
78 QSettings settings;
79 foreach (QString name, program_path.keys()) {
80 QString path = settings.value("exepath/" + name
81 , program_path[name]).toString();
82 program_path[name] = path;
83 }
84 }
85
getPrograms()86 QList<QString> ExePath::getPrograms()
87 {
88 return program_path.keys();
89 }
90