1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#include "qv4l2.h"
#include "general-tab.h"
#include "v4l2.h"
#include <qimage.h>
#include <qpixmap.h>
#include <qtoolbar.h>
#include <qtoolbutton.h>
#include <qpopupmenu.h>
#include <qmenubar.h>
#include <qfile.h>
#include <qfiledialog.h>
#include <qstatusbar.h>
#include <qapplication.h>
#include <qmessagebox.h>
#include <qlineedit.h>
#include <qvalidator.h>
#include <qlayout.h>
#include <qvbox.h>
#include <qhbox.h>
#include <qlabel.h>
#include <qslider.h>
#include <qspinbox.h>
#include <qcombobox.h>
#include <qcheckbox.h>
#include <qpushbutton.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <errno.h>
#include "fileopen.xpm"
ApplicationWindow::ApplicationWindow()
: QMainWindow( 0, "V4L2 main window", WDestructiveClose | WGroupLeader )
{
QPixmap openIcon, saveIcon;
fd = -1;
sigMapper = NULL;
QToolBar * fileTools = new QToolBar( this, "file operations" );
fileTools->setLabel( "File Operations" );
openIcon = QPixmap( fileopen );
QToolButton * fileOpen
= new QToolButton( openIcon, "Open File", QString::null,
this, SLOT(choose()), fileTools, "open file" );
(void)QWhatsThis::whatsThisButton( fileTools );
const char * fileOpenText = "<p><img source=\"fileopen\"> "
"Click this button to open a <em>new v4l device</em>.<br>"
"You can also select the <b>Open</b> command "
"from the <b>File</b> menu.</p>";
QWhatsThis::add( fileOpen, fileOpenText );
QMimeSourceFactory::defaultFactory()->setPixmap( "fileopen", openIcon );
QPopupMenu * file = new QPopupMenu( this );
menuBar()->insertItem( "&File", file );
int id;
id = file->insertItem( openIcon, "&Open...",
this, SLOT(choose()), CTRL+Key_O );
file->setWhatsThis( id, fileOpenText );
file->insertSeparator();
file->insertItem( "&Close", this, SLOT(close()), CTRL+Key_W );
file->insertItem( "&Quit", qApp, SLOT( closeAllWindows() ), CTRL+Key_Q );
menuBar()->insertSeparator();
QPopupMenu * help = new QPopupMenu( this );
menuBar()->insertItem( "&Help", help );
help->insertItem( "&About", this, SLOT(about()), Key_F1 );
help->insertItem( "What's &This", this, SLOT(whatsThis()), SHIFT+Key_F1 );
statusBar()->message( "Ready", 2000 );
tabs = new QTabWidget(this);
tabs->setMargin(3);
//resize( 450, 600 );
}
ApplicationWindow::~ApplicationWindow()
{
if (fd >= 0) ::close(fd);
}
void ApplicationWindow::setDevice(const QString &device)
{
if (fd >= 0) ::close(fd);
while (QWidget *page = tabs->page(0)) {
tabs->removePage(page);
delete page;
}
delete tabs;
delete sigMapper;
tabs = new QTabWidget(this);
tabs->setMargin(3);
sigMapper = new QSignalMapper(this);
connect(sigMapper, SIGNAL(mapped(int)), this, SLOT(ctrlAction(int)));
ctrlMap.clear();
widgetMap.clear();
classMap.clear();
fd = ::open(device, O_RDONLY);
if (fd >= 0) {
tabs->addTab(new GeneralTab(device, fd, 4, tabs), "General");
addTabs();
}
if (QWidget *current = tabs->currentPage()) {
current->show();
}
tabs->show();
tabs->setFocus();
setCentralWidget(tabs);
}
void ApplicationWindow::choose()
{
QString fn = QFileDialog::getOpenFileName( "/dev/v4l", QString::null,
this);
if ( !fn.isEmpty() ) {
setDevice(fn);
}
else
statusBar()->message( "Loading aborted", 2000 );
}
void ApplicationWindow::closeEvent( QCloseEvent* ce )
{
ce->accept();
}
bool ApplicationWindow::doIoctl(QString descr, unsigned cmd, void *arg)
{
statusBar()->clear();
int err = ioctl(fd, cmd, arg);
if (err == -1) {
QString s = strerror(errno);
statusBar()->message(descr + ": " + s, 10000);
}
return err != -1;
}
void ApplicationWindow::about()
{
QMessageBox::about( this, "V4L2 Control Panel",
"This program allows easy experimenting with video4linux devices.");
}
ApplicationWindow *g_mw;
int main(int argc, char **argv)
{
QApplication a(argc, argv);
g_mw = new ApplicationWindow();
g_mw->setCaption( "V4L2 Control Panel" );
g_mw->setDevice("/dev/video0");
g_mw->show();
a.connect( &a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()) );
return a.exec();
}
|
