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///////////////////////////////////////////////////////////////////////////////
// LameXP - Audio Encoder Front-End
// Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version, but always including the *additional*
// restrictions defined in the "License.txt" file.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// http://www.gnu.org/licenses/gpl-2.0.txt
///////////////////////////////////////////////////////////////////////////////
#include "Dialog_WorkingBanner.h"
#include "UIC_WorkingBanner.h"
//Internal
#include "Global.h"
//MUtils
#include <MUtils/Global.h>
#include <MUtils/GUI.h>
#include <MUtils/Taskbar7.h>
//Qt
#include <QThread>
#include <QMovie>
#include <QKeyEvent>
#include <QFontMetrics>
#include <QPainter>
#include <QWindowsVistaStyle>
#include <QTimer>
#define EPS (1.0E-5)
/* It can happen that the QThread has just terminated and already emitted the 'terminated' signal, but did NOT change the 'isRunning' flag to FALSE yet. */
/* For this reason the macro will first check the 'isRunning' flag. If (and only if) the flag still returns TRUE, then we will wait() for at most 50 ms. */
/* If, after 50 ms, the wait() function returns with FALSE, then the thread probably is still running and we return TRUE. Otherwise we can return FALSE. */
#define THREAD_RUNNING(THRD) (((THRD)->isRunning()) ? (!((THRD)->wait(1))) : false)
/*Update text color*/
static inline void SET_TEXT_COLOR(QWidget *control, const QColor &color)
{
QPalette pal = control->palette();
pal.setColor(QPalette::WindowText, color);
pal.setColor(QPalette::Text, color);
control->setPalette(pal);
}
/*Make widget translucent*/
static inline void MAKE_TRANSLUCENT(QWidget *control)
{
control->setAttribute(Qt::WA_TranslucentBackground);
control->setAttribute(Qt::WA_NoSystemBackground);
}
/*Update widget margins*/
static inline void UPDATE_MARGINS(QWidget *control, int l = 0, int r = 0, int t = 0, int b = 0)
{
if(QLayout *layout = control->layout())
{
QMargins margins = layout->contentsMargins();
margins.setLeft(margins.left() + l);
margins.setRight(margins.right() + r);
margins.setTop(margins.top() + t);
margins.setBottom(margins.bottom() + b);
layout->setContentsMargins(margins);
}
}
////////////////////////////////////////////////////////////
// Constructor
////////////////////////////////////////////////////////////
WorkingBanner::WorkingBanner(QWidget *parent)
:
QDialog(parent, Qt::CustomizeWindowHint | Qt::WindowStaysOnTopHint),
ui(new Ui::WorkingBanner()),
m_taskbar(new MUtils::Taskbar7(parent)),
m_metrics(NULL), m_working(NULL), m_style(NULL)
{
//Init the dialog, from the .ui file
ui->setupUi(this);
setModal(true);
//Enable the "sheet of glass" effect
if(MUtils::GUI::sheet_of_glass(this))
{
m_style.reset(new QWindowsVistaStyle());
this->setStyle(m_style.data());
ui->progressBar->setStyle(m_style.data());
ui->labelStatus->setStyle(m_style.data());
ui->labelStatus->setStyleSheet("background-color: #FFFFFF;");
}
else
{
UPDATE_MARGINS(this, 5);
m_working.reset(new QMovie(":/images/Busy.gif"));
m_working->setCacheMode(QMovie::CacheAll);
ui->labelWorking->setMovie(m_working.data());
}
//Set Opacity
this->setWindowOpacity(0.9);
//Set wait cursor
setCursor(Qt::WaitCursor);
//Clear label
ui->labelStatus->clear();
}
////////////////////////////////////////////////////////////
// Destructor
////////////////////////////////////////////////////////////
WorkingBanner::~WorkingBanner(void)
{
if(!m_working.isNull())
{
m_working->stop();
}
delete ui;
}
////////////////////////////////////////////////////////////
// PUBLIC FUNCTIONS
////////////////////////////////////////////////////////////
void WorkingBanner::show(const QString &text)
{
m_canClose = false;
QDialog::show();
setFixedSize(size());
setText(text);
//Reset progress
ui->progressBar->setMinimum(0);
ui->progressBar->setMaximum(0);
ui->progressBar->setValue(-1);
}
void WorkingBanner::show(const QString &text, QThread *thread)
{
//Show splash
this->show(text);
//Create event loop
QEventLoop *loop = new QEventLoop(this);
connect(thread, SIGNAL(finished()), loop, SLOT(quit()));
connect(thread, SIGNAL(terminated()), loop, SLOT(quit()));
//Set taskbar state
m_taskbar->setOverlayIcon(&QIcon(":/icons/hourglass.png"));
m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_INTERMEDIATE);
//Start the thread
thread->start();
//Update cursor
QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
//Loop while thread is still running
while(THREAD_RUNNING(thread))
{
loop->exec();
}
//Restore cursor
QApplication::restoreOverrideCursor();
//Set taskbar state
m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_NONE);
m_taskbar->setOverlayIcon(NULL);
//Free memory
MUTILS_DELETE(loop);
//Hide splash
this->close();
}
void WorkingBanner::show(const QString &text, QEventLoop *loop)
{
//Show splash
this->show(text);
//Set taskbar state
m_taskbar->setOverlayIcon(&QIcon(":/icons/hourglass.png"));
m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_INTERMEDIATE);
//Update cursor
QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
//Loop while thread is running
loop->exec(QEventLoop::ExcludeUserInputEvents);
//Restore cursor
QApplication::restoreOverrideCursor();
//Set taskbar state
m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_NONE);
m_taskbar->setOverlayIcon(NULL);
//Hide splash
this->close();
}
bool WorkingBanner::close(void)
{
m_canClose = true;
emit userAbort();
return QDialog::close();
}
////////////////////////////////////////////////////////////
// EVENTS
////////////////////////////////////////////////////////////
void WorkingBanner::keyPressEvent(QKeyEvent *event)
{
if(event->key() == Qt::Key_Escape)
{
qDebug("QT::KEY_ESCAPE pressed!");
emit userAbort();
}
else if(event->key() == Qt::Key_M)
{
QTimer::singleShot(0, parent(), SLOT(showMinimized()));
}
QDialog::keyPressEvent(event);
}
void WorkingBanner::keyReleaseEvent(QKeyEvent *event)
{
QDialog::keyReleaseEvent(event);
}
void WorkingBanner::closeEvent(QCloseEvent *event)
{
if(!m_canClose) event->ignore();
}
void WorkingBanner::showEvent(QShowEvent *event)
{
QDialog::showEvent(event);
if(!event->spontaneous())
{
if(m_working)
{
m_working->start();
}
}
QTimer::singleShot(25, this, SLOT(windowShown()));
}
void WorkingBanner::hideEvent(QHideEvent *event)
{
QDialog::hideEvent(event);
if(!event->spontaneous())
{
if(m_working)
{
m_working->stop();
}
}
}
////////////////////////////////////////////////////////////
// SLOTS
////////////////////////////////////////////////////////////
void WorkingBanner::windowShown(void)
{
MUtils::GUI::bring_to_front(this);
}
void WorkingBanner::setText(const QString &text)
{
if(m_metrics.isNull())
{
m_metrics.reset(new QFontMetrics(ui->labelStatus->font()));
}
if(m_metrics->width(text) <= ui->labelStatus->width() - 16)
{
ui->labelStatus->setText(text);
}
else
{
QString choppedText = text.simplified().append("...");
while((m_metrics->width(choppedText) > ui->labelStatus->width() - 16) && (choppedText.length() > 8))
{
choppedText.chop(4);
choppedText = choppedText.trimmed();
choppedText.append("...");
}
ui->labelStatus->setText(choppedText);
}
}
void WorkingBanner::setProgressMax(unsigned int max)
{
ui->progressBar->setMaximum(max);
if(ui->progressBar->maximum() > ui->progressBar->minimum())
{
m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_NONE);
m_taskbar->setTaskbarProgress(ui->progressBar->value(), ui->progressBar->maximum());
}
else
{
m_taskbar->setTaskbarState(MUtils::Taskbar7::TASKBAR_STATE_INTERMEDIATE);
}
}
void WorkingBanner::setProgressVal(unsigned int val)
{
ui->progressBar->setValue(val);
if(ui->progressBar->maximum() > ui->progressBar->minimum())
{
m_taskbar->setTaskbarProgress(ui->progressBar->value(), ui->progressBar->maximum());
}
}
////////////////////////////////////////////////////////////
// Private
////////////////////////////////////////////////////////////
/*
void WorkingBanner::updateProgress(void)
{
if(m_progressMax > 0)
{
int newProgress = qRound(qBound(0.0, static_cast<double>(m_progressVal) / static_cast<double>(m_progressMax), 1.0) * 100.0);
if(m_progressInt != newProgress)
{
m_progressInt = newProgress;
m_progress->setText(QString::number(m_progressInt));
if(this->isVisible())
{
labelStatus->repaint();
}
}
}
}
*/
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