aboutsummaryrefslogtreecommitdiffstats
path: root/ui/qt/widgets/splash_overlay.cpp
blob: 0ba729f0bddc068b52fbe0ce133903e79efb3f07 (plain)
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
179
180
181
182
183
184
185
186
187
188
189
190
/* splash_overlay.cpp
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "splash_overlay.h"
#include <ui_splash_overlay.h>
#include "wireshark_application.h"

#include <QPainter>

#include "ui/util.h"
#include <wsutil/utf8_entities.h>
#include <ui/qt/utils/tango_colors.h>

#ifdef HAVE_LUA
#include "epan/wslua/init_wslua.h"
#endif

#include "extcap.h"

// Uncomment to slow the update progress
//#define THROTTLE_STARTUP 1

/*
 * Update frequency for the splash screen, given in milliseconds.
 */
const int info_update_freq_ = 65; // ~15 fps

void splash_update(register_action_e action, const char *message, void *) {
    emit wsApp->registerUpdate(action, message);
}

SplashOverlay::SplashOverlay(QWidget *parent) :
    QWidget(parent),
    so_ui_(new Ui::SplashOverlay),
    last_action_(RA_NONE),
    register_cur_(0)
{
    so_ui_->setupUi(this);

    int register_max = RA_BASE_COUNT;
#ifdef HAVE_LUA
    register_max++;
#endif
    register_max++;

    so_ui_->progressBar->setMaximum(register_max);
    elapsed_timer_.start();

    QColor bg = QColor(tango_aluminium_6);
    bg.setAlphaF(0.2);
    QPalette pal;
    pal.setColor(QPalette::Background, bg);
    setPalette(pal);
    setAutoFillBackground(true);

    setStyleSheet(QString(
                      "QFrame#progressBand {"
                      "  background: %1;"
                      "}"
                      "QLabel {"
                      "  color: white;"
                      "  background: transparent;"
                      "}"
                      "QProgressBar {"
                      "  height: 1em;"
                      "  width: 20em;"
                      "  border: 0.1em solid white;"
                      "  border-radius: 0.2em;"
                      "  color: white;"
                      "  background: transparent;"
                      "}"
                      "QProgressBar::chunk {"
                      "  width: 0.1em;"
                      "  background: rgba(255, 255, 255, 50%);"
                      "}"
                      )
                  .arg(QColor(tango_aluminium_4).name()));

    connect(wsApp, SIGNAL(splashUpdate(register_action_e,const char*)),
            this, SLOT(splashUpdate(register_action_e,const char*)));
}

SplashOverlay::~SplashOverlay()
{
    delete so_ui_;
}

// Useful for debugging on fast machines.
#ifdef THROTTLE_STARTUP
#include <QThread>
class ThrottleThread : public QThread
{
public:
    static void msleep(unsigned long msecs)
    {
        QThread::msleep(msecs);
    }
};
#endif

void SplashOverlay::splashUpdate(register_action_e action, const char *message)
{
    QString action_msg = UTF8_HORIZONTAL_ELLIPSIS;

#ifdef THROTTLE_STARTUP
    ThrottleThread::msleep(10);
#endif

    if (last_action_ == action && (elapsed_timer_.elapsed() < info_update_freq_)) {
        // Nothing to update yet
        return;
    }

    if (last_action_ != action) {
        register_cur_++;
    }
    last_action_ = action;

    switch(action) {
    case RA_DISSECTORS:
        action_msg = tr("Initializing dissectors");
        break;
    case RA_LISTENERS:
        action_msg = tr("Initializing tap listeners");
        break;
    case RA_EXTCAP:
        action_msg = tr("Initializing external capture plugins");
        break;
    case RA_REGISTER:
        action_msg = tr("Registering dissectors");
        break;
    case RA_PLUGIN_REGISTER:
        action_msg = tr("Registering plugins");
        break;
    case RA_HANDOFF:
        action_msg = tr("Handing off dissectors");
        break;
    case RA_PLUGIN_HANDOFF:
        action_msg = tr("Handing off plugins");
        break;
    case RA_LUA_PLUGINS:
        action_msg = tr("Loading Lua plugins");
        break;
    case RA_LUA_DEREGISTER:
        action_msg = tr("Removing Lua plugins");
        break;
    case RA_PREFERENCES:
        action_msg = tr("Loading module preferences");
        break;
    case RA_INTERFACES:
        action_msg = tr("Finding local interfaces");
        break;
    default:
        action_msg = tr("(Unknown action)");
        break;
    }

    if (message) {
        if (!strncmp(message, "proto_register_", 15))
            message += 15;
        else if (!strncmp(message, "proto_reg_handoff_", 18))
            message += 18;
        action_msg.append(" ").append(message);
    }
    so_ui_->actionLabel->setText(action_msg);

    so_ui_->progressBar->setValue(register_cur_);

    wsApp->processEvents(QEventLoop::ExcludeUserInputEvents | QEventLoop::ExcludeSocketNotifiers, 1);
    elapsed_timer_.restart();
}

/*
 * Editor modelines
 *
 * Local Variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * ex: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */