src/Dialog_WorkingBanner.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 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.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Dialog_WorkingBanner.h"
  23
  24 #include "Global.h"
  25 #include "WinSevenTaskbar.h"
  26
  27 #include <QThread>
  28 #include <QMovie>
  29 #include <QKeyEvent>
  30 #include <QFontMetrics>
  31 #include <Windows.h>
  32
  33 #define EPS (1.0E-5)
  34
  35 ////////////////////////////////////////////////////////////
  36 // Constructor
  37 ////////////////////////////////////////////////////////////
  38
  39 WorkingBanner::WorkingBanner(QWidget *parent)
  40 :
  41         QDialog(parent, Qt::CustomizeWindowHint | Qt::WindowStaysOnTopHint)
  42 {
  43         //Init the dialog, from the .ui file
  44         setupUi(this);
  45         setModal(true);
  46
  47         //Start animation
  48         m_working = new QMovie(":/images/Busy.gif");
  49         labelWorking->setMovie(m_working);
  50         m_working->start();
  51
  52         //Set wait cursor
  53         setCursor(Qt::WaitCursor);
  54
  55         //Init taskbar
  56         WinSevenTaskbar::initTaskbar();
  57 }
  58
  59 ////////////////////////////////////////////////////////////
  60 // Destructor
  61 ////////////////////////////////////////////////////////////
  62
  63 WorkingBanner::~WorkingBanner(void)
  64 {
  65         if(m_working)
  66         {
  67                 m_working->stop();
  68                 delete m_working;
  69                 m_working = NULL;
  70         }
  71 }
  72
  73 ////////////////////////////////////////////////////////////
  74 // PUBLIC FUNCTIONS
  75 ////////////////////////////////////////////////////////////
  76
  77 void WorkingBanner::show(const QString &text)
  78 {
  79         m_canClose = false;
  80         QDialog::show();
  81         setText(text);
  82         QApplication::processEvents();
  83 }
  84
  85 void WorkingBanner::close(void)
  86 {
  87         m_canClose = true;
  88         QDialog::close();
  89 }
  90
  91 void WorkingBanner::show(const QString &text, QThread *thread)
  92 {
  93         //Show splash
  94         this->show(text);
  95
  96         //Start the thread
  97         thread->start();
  98
  99         //Set taskbar state
 100         WinSevenTaskbar::setOverlayIcon(dynamic_cast<QWidget*>(this->parent()), &QIcon(":/icons/hourglass.png"));
 101         WinSevenTaskbar::setTaskbarState(dynamic_cast<QWidget*>(this->parent()), WinSevenTaskbar::WinSevenTaskbarIndeterminateState);
 102
 103         //Loop while thread is running
 104         while(thread->isRunning())
 105         {
 106                 QApplication::processEvents(QEventLoop::AllEvents | QEventLoop::WaitForMoreEvents);
 107         }
 108
 109         //Set taskbar state
 110         WinSevenTaskbar::setTaskbarState(dynamic_cast<QWidget*>(this->parent()), WinSevenTaskbar::WinSevenTaskbarNoState);
 111         WinSevenTaskbar::setOverlayIcon(dynamic_cast<QWidget*>(this->parent()), NULL);
 112
 113         //Hide splash
 114         this->close();
 115 }
 116
 117 void WorkingBanner::show(const QString &text, QEventLoop *loop)
 118 {
 119         //Show splash
 120         this->show(text);
 121
 122         //Set taskbar state
 123         WinSevenTaskbar::setOverlayIcon(dynamic_cast<QWidget*>(this->parent()), &QIcon(":/icons/hourglass.png"));
 124         WinSevenTaskbar::setTaskbarState(dynamic_cast<QWidget*>(this->parent()), WinSevenTaskbar::WinSevenTaskbarIndeterminateState);
 125
 126         //Loop while thread is running
 127         loop->exec(QEventLoop::ExcludeUserInputEvents);
 128
 129         //Set taskbar state
 130         WinSevenTaskbar::setTaskbarState(dynamic_cast<QWidget*>(this->parent()), WinSevenTaskbar::WinSevenTaskbarNoState);
 131         WinSevenTaskbar::setOverlayIcon(dynamic_cast<QWidget*>(this->parent()), NULL);
 132
 133         //Hide splash
 134         this->close();
 135 }
 136
 137 ////////////////////////////////////////////////////////////
 138 // EVENTS
 139 ////////////////////////////////////////////////////////////
 140
 141 void WorkingBanner::keyPressEvent(QKeyEvent *event)
 142 {
 143         event->ignore();
 144 }
 145
 146 void WorkingBanner::keyReleaseEvent(QKeyEvent *event)
 147 {
 148         event->ignore();
 149 }
 150
 151 void WorkingBanner::closeEvent(QCloseEvent *event)
 152 {
 153         if(!m_canClose) event->ignore();
 154 }
 155
 156 ////////////////////////////////////////////////////////////
 157 // SLOTS
 158 ////////////////////////////////////////////////////////////
 159
 160 void WorkingBanner::setText(const QString &text)
 161 {
 162         QFontMetrics metrics(labelStatus->font());
 163         if(metrics.width(text) <= labelStatus->width())
 164         {
 165                 labelStatus->setText(text);
 166         }
 167         else
 168         {
 169                 QString choppedText = text.simplified().append("...");
 170                 while(metrics.width(choppedText) > labelStatus->width() && choppedText.length() > 8)
 171                 {
 172                         choppedText.chop(4);
 173                         choppedText = choppedText.trimmed();
 174                         choppedText.append("...");
 175                 }
 176                 labelStatus->setText(choppedText);
 177         }
 178         if(this->isVisible())
 179         {
 180                 QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
 181         }
 182 }