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[LameXP.git] / src / Dialog_SplashScreen.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 // LameXP - Audio Encoder Front-End
3 // Copyright (C) 2004-2021 LoRd_MuldeR <MuldeR2@GMX.de>
4 //
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU GENERAL PUBLIC LICENSE as published by
7 // the Free Software Foundation; either version 2 of the License, or
8 // (at your option) any later version; always including the non-optional
9 // LAMEXP GNU GENERAL PUBLIC LICENSE ADDENDUM. See "License.txt" file!
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this program; if not, write to the Free Software Foundation, Inc.,
18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 // http://www.gnu.org/licenses/gpl-2.0.txt
21 ///////////////////////////////////////////////////////////////////////////////
23 #include "Dialog_SplashScreen.h"
25 //UIC includes
26 #include "UIC_SplashScreen.h"
28 //Internal
29 #include "Global.h"
31 //MUtils
32 #include <MUtils/Global.h>
33 #include <MUtils/GUI.h>
34 #include <MUtils/Taskbar7.h>
36 //Qt
37 #include <QThread>
38 #include <QMovie>
39 #include <QKeyEvent>
40 #include <QTimer>
42 #define FADE_DELAY 16
43 #define OPACITY_DELTA 0.04
45 //Setup taskbar indicator
46 #define SET_TASKBAR_STATE(WIDGET,FLAG) do \
47 { \
48 const int _oldFlag = (WIDGET)->m_taskBarFlag.fetchAndStoreOrdered((FLAG) ? 1 : 0); \
49 if(_oldFlag != ((FLAG) ? 1 : 0)) \
50 { \
51 (WIDGET)->m_taskbar->setTaskbarState((FLAG) ? MUtils::Taskbar7::TASKBAR_STATE_INTERMEDIATE : MUtils::Taskbar7::TASKBAR_STATE_NONE); \
52 } \
53 } \
54 while(0)
56 ////////////////////////////////////////////////////////////
57 // Constructor
58 ////////////////////////////////////////////////////////////
60 SplashScreen::SplashScreen(QWidget *parent)
62 QFrame(parent, Qt::CustomizeWindowHint | Qt::WindowStaysOnTopHint),
63 ui(new Ui::SplashScreen),
64 m_opacitySteps(qRound(1.0 / OPACITY_DELTA)),
65 m_taskbar(new MUtils::Taskbar7(this))
67 //Init the dialog, from the .ui file
68 ui->setupUi(this);
70 //Make size fixed
71 setFixedSize(this->size());
73 //Create event loop
74 m_loop.reset(new QEventLoop(this));
76 //Create timer
77 m_timer.reset(new QTimer(this));
78 m_timer->setInterval(FADE_DELAY);
79 m_timer->setSingleShot(false);
81 //Connect timer to slot
82 connect(m_timer.data(), SIGNAL(timeout()), this, SLOT(updateHandler()));
84 //Enable "sheet of glass" effect on splash screen
85 if(!MUtils::GUI::sheet_of_glass(this))
87 setStyleSheet("background-image: url(:/images/Background.jpg)");
90 //Start animation
91 m_working.reset(new QMovie(":/images/Loading4.gif"));
92 m_working->setCacheMode(QMovie::CacheAll);
93 ui->labelLoading->setMovie(m_working.data());
94 m_working->start();
96 //Init status
97 m_status = STATUS_FADE_IN;
98 m_fadeValue = 0;
101 ////////////////////////////////////////////////////////////
102 // Destructor
103 ////////////////////////////////////////////////////////////
105 SplashScreen::~SplashScreen(void)
107 if(m_working)
109 m_working->stop();
112 delete ui;
115 ////////////////////////////////////////////////////////////
116 // PUBLIC FUNCTIONS
117 ////////////////////////////////////////////////////////////
119 void SplashScreen::showSplash(QThread *thread)
121 QScopedPointer<SplashScreen> splashScreen(new SplashScreen());
123 //Show splash
124 splashScreen->setWindowOpacity(OPACITY_DELTA);
125 splashScreen->show();
127 //Set wait cursor
128 QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
130 //Wait for window to show
131 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
132 splashScreen->repaint(); MUtils::GUI::bring_to_front(splashScreen.data());
133 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
135 //Connect thread signals
136 connect(thread, SIGNAL(terminated()), splashScreen.data(), SLOT(threadComplete()), Qt::QueuedConnection);
137 connect(thread, SIGNAL(finished()), splashScreen.data(), SLOT(threadComplete()), Qt::QueuedConnection);
139 //Init taskbar
140 SET_TASKBAR_STATE(splashScreen, true);
142 //Start the thread
143 splashScreen->m_timer->start(FADE_DELAY);
144 QTimer::singleShot(8*60*1000, splashScreen->m_loop.data(), SLOT(quit()));
145 QTimer::singleShot(333, thread, SLOT(start()));
147 //Start event handling!
148 const int ret = splashScreen->m_loop->exec(QEventLoop::ExcludeUserInputEvents);
150 //Check for timeout
151 if(ret != 42)
153 thread->terminate();
154 qFatal("Deadlock in initialization thread encountered!");
157 //Restore taskbar
158 SET_TASKBAR_STATE(splashScreen, false);
160 //Restore cursor
161 QApplication::restoreOverrideCursor();
163 //Hide splash
164 splashScreen->m_canClose.ref();
165 splashScreen->close();
168 ////////////////////////////////////////////////////////////
169 // SLOTS
170 ////////////////////////////////////////////////////////////
172 void SplashScreen::updateHandler(void)
174 if(m_status == STATUS_FADE_IN)
176 if(m_fadeValue < m_opacitySteps)
178 setWindowOpacity(OPACITY_DELTA * static_cast<double>(++m_fadeValue));
179 SET_TASKBAR_STATE(this, true);
181 else
183 setWindowOpacity(1.0);
184 MUtils::GUI::bring_to_front(this);
185 m_timer->stop();
186 m_status = STATUS_WAIT;
189 else if(m_status == STATUS_FADE_OUT)
191 if(m_fadeValue > 0)
193 setWindowOpacity(OPACITY_DELTA * static_cast<double>(--m_fadeValue));
194 SET_TASKBAR_STATE(this, true);
196 else
198 setWindowOpacity(0.0);
199 m_timer->stop();
200 m_status = STATUS_DONE;
201 m_loop->exit(42);
206 void SplashScreen::threadComplete(void)
208 m_status = STATUS_FADE_OUT;
209 if(!m_timer->isActive())
211 m_timer->start(FADE_DELAY);
213 MUtils::GUI::bring_to_front(this);
216 ////////////////////////////////////////////////////////////
217 // EVENTS
218 ////////////////////////////////////////////////////////////
220 void SplashScreen::keyPressEvent(QKeyEvent *event)
222 event->ignore();
225 void SplashScreen::keyReleaseEvent(QKeyEvent *event)
227 event->ignore();
230 void SplashScreen::closeEvent(QCloseEvent *event)
232 if(!m_canClose) event->ignore();