src/Dialog_MetaInfo.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2012 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_MetaInfo.h"
  23
  24 #include "Global.h"
  25 #include "Model_MetaInfo.h"
  26
  27 #include <QFileInfo>
  28 #include <QMessageBox>
  29 #include <QTimer>
  30 #include <QFileDialog>
  31 #include <QMenu>
  32
  33 #define SET_FONT_BOLD(WIDGET,BOLD) { QFont _font = WIDGET->font(); _font.setBold(BOLD); WIDGET->setFont(_font); }
  34
  35 ////////////////////////////////////////////////////////////
  36 // Constructor & Destructor
  37 ////////////////////////////////////////////////////////////
  38
  39 MetaInfoDialog::MetaInfoDialog(QWidget *parent)
  40 :
  41         QDialog(parent)
  42 {
  43         //Init the dialog, from the .ui file
  44         setupUi(this);
  45
  46         //Hide artwork
  47         frameArtwork->hide();
  48
  49         //Fix size
  50         setMinimumSize(this->size());
  51         setMaximumHeight(this->height());
  52
  53         //Setup table view
  54         tableView->verticalHeader()->setVisible(false);
  55         tableView->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
  56         tableView->horizontalHeader()->setResizeMode(QHeaderView::ResizeToContents);
  57         tableView->horizontalHeader()->setStretchLastSection(true);
  58
  59         //Enable up/down button
  60         connect(upButton, SIGNAL(clicked()), this, SLOT(upButtonClicked()));
  61         connect(downButton, SIGNAL(clicked()), this, SLOT(downButtonClicked()));
  62         connect(editButton, SIGNAL(clicked()), this, SLOT(editButtonClicked()));
  63
  64         //Create context menu
  65         m_contextMenuInfo = new QMenu();
  66         m_contextMenuArtwork = new QMenu();
  67         QAction *editMetaInfoAction = m_contextMenuInfo->addAction(QIcon(":/icons/table_edit.png"), tr("Edit this Information"));
  68         QAction *copyMetaInfoAction = m_contextMenuInfo->addAction(QIcon(":/icons/page_white_copy.png"), tr("Copy everything to Meta Info tab"));
  69         QAction *clearMetaInfoAction = m_contextMenuInfo->addAction(QIcon(":/icons/bin.png"), tr("Clear all Meta Info"));
  70         QAction *loadArtworkAction = m_contextMenuArtwork->addAction(QIcon(":/icons/folder_image.png"), tr("Load Artwork From File"));
  71         QAction *clearArtworkAction = m_contextMenuArtwork->addAction(QIcon(":/icons/bin.png"), tr("Clear Artwork"));
  72         SET_FONT_BOLD(editMetaInfoAction, true);
  73         SET_FONT_BOLD(loadArtworkAction, true);
  74         connect(tableView, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(infoContextMenuRequested(QPoint)));
  75         connect(labelArtwork, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(artworkContextMenuRequested(QPoint)));
  76         connect(frameArtwork, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(artworkContextMenuRequested(QPoint)));
  77         connect(editMetaInfoAction, SIGNAL(triggered(bool)), this, SLOT(editButtonClicked()));
  78         connect(copyMetaInfoAction, SIGNAL(triggered(bool)), this, SLOT(copyMetaInfoActionTriggered()));
  79         connect(clearMetaInfoAction, SIGNAL(triggered(bool)), this, SLOT(clearMetaInfoActionTriggered()));
  80         connect(loadArtworkAction, SIGNAL(triggered(bool)), this, SLOT(editButtonClicked()));
  81         connect(clearArtworkAction, SIGNAL(triggered(bool)), this, SLOT(clearArtworkActionTriggered()));
  82
  83         //Install event filter
  84         labelArtwork->installEventFilter(this);
  85
  86         //Translate
  87         labelHeaderText->setText(QString("<b>%1</b><br>%2").arg(tr("Meta Information"), tr("The following meta information have been extracted from the original file.")));
  88 }
  89
  90 MetaInfoDialog::~MetaInfoDialog(void)
  91 {
  92         LAMEXP_DELETE(m_contextMenuInfo);
  93         LAMEXP_DELETE(m_contextMenuArtwork);
  94 }
  95
  96 ////////////////////////////////////////////////////////////
  97 // Slots
  98 ////////////////////////////////////////////////////////////
  99
 100 int MetaInfoDialog::exec(AudioFileModel &audioFile, bool allowUp, bool allowDown)
 101 {
 102         MetaInfoModel *model = new MetaInfoModel(&audioFile);
 103         tableView->setModel(model);
 104         tableView->show();
 105         frameArtwork->hide();
 106         setWindowTitle(tr("Meta Information: %1").arg(QFileInfo(audioFile.filePath()).fileName()));
 107         editButton->setEnabled(true);
 108         upButton->setEnabled(allowUp);
 109         downButton->setEnabled(allowDown);
 110         buttonArtwork->setChecked(false);
 111
 112         if(!audioFile.fileCover().isEmpty())
 113         {
 114                 QImage artwork;
 115                 if(artwork.load(audioFile.fileCover()))
 116                 {
 117                         if((artwork.width() > 256) || (artwork.height() > 256))
 118                         {
 119                                 artwork = artwork.scaled(256, 256, Qt::KeepAspectRatio, Qt::SmoothTransformation);
 120                         }
 121                         labelArtwork->setPixmap(QPixmap::fromImage(artwork));
 122                 }
 123                 else
 124                 {
 125                         qWarning("Error: Failed to load cover art!");
 126                         labelArtwork->setPixmap(QPixmap::fromImage(QImage(":/images/CD.png")));
 127                 }
 128         }
 129         else
 130         {
 131                 labelArtwork->setPixmap(QPixmap::fromImage(QImage(":/images/CD.png")));
 132         }
 133
 134         int iResult = QDialog::exec();
 135
 136         tableView->setModel(NULL);
 137         LAMEXP_DELETE(model);
 138
 139         return iResult;
 140 }
 141
 142 void MetaInfoDialog::upButtonClicked(void)
 143 {
 144         done(-1);
 145 }
 146
 147 void MetaInfoDialog::downButtonClicked(void)
 148 {
 149         done(+1);
 150 }
 151
 152 void MetaInfoDialog::editButtonClicked(void)
 153 {
 154         if(!buttonArtwork->isChecked())
 155         {
 156                 dynamic_cast<MetaInfoModel*>(tableView->model())->editItem(tableView->currentIndex(), this);
 157                 return;
 158         }
 159
 160         QString fileName = QFileDialog::getOpenFileName(this, tr("Load Artwork"), QString(), QString::fromLatin1("JPEG (*.jpg);;PNG (*.png);;GIF (*.gif)"));
 161         if(!fileName.isEmpty())
 162         {
 163                 QImage artwork;
 164                 if(artwork.load(fileName))
 165                 {
 166                         if((artwork.width() > 256) || (artwork.height() > 256))
 167                         {
 168                                 artwork = artwork.scaled(256, 256, Qt::KeepAspectRatio, Qt::SmoothTransformation);
 169                         }
 170                         dynamic_cast<MetaInfoModel*>(tableView->model())->editArtwork(fileName);
 171                         labelArtwork->setPixmap(QPixmap::fromImage(artwork));
 172                 }
 173                 else
 174                 {
 175                         qWarning("Error: Failed to load cover art!");
 176                         QMessageBox::warning(this, tr("Artwork Error"), QString("<nobr>%1</nobr><br><br><nobr>%2</nobr>").arg(tr("Sorry, failed to load artwork from selected file!"), QDir::toNativeSeparators(fileName)));
 177                 }
 178         }
 179 }
 180
 181 void MetaInfoDialog::infoContextMenuRequested(const QPoint &pos)
 182 {
 183         QAbstractScrollArea *scrollArea = dynamic_cast<QAbstractScrollArea*>(QObject::sender());
 184         QWidget *sender = scrollArea ? scrollArea->viewport() : dynamic_cast<QWidget*>(QObject::sender());
 185
 186         if(sender)
 187         {
 188                 if(pos.x() <= sender->width() && pos.y() <= sender->height() && pos.x() >= 0 && pos.y() >= 0)
 189                 {
 190                         m_contextMenuInfo->popup(sender->mapToGlobal(pos));
 191                 }
 192         }
 193 }
 194
 195 void MetaInfoDialog::artworkContextMenuRequested(const QPoint &pos)
 196 {
 197         QAbstractScrollArea *scrollArea = dynamic_cast<QAbstractScrollArea*>(QObject::sender());
 198         QWidget *sender = scrollArea ? scrollArea->viewport() : dynamic_cast<QWidget*>(QObject::sender());
 199
 200         if(sender)
 201         {
 202                 if(pos.x() <= sender->width() && pos.y() <= sender->height() && pos.x() >= 0 && pos.y() >= 0)
 203                 {
 204                         m_contextMenuArtwork->popup(sender->mapToGlobal(pos));
 205                 }
 206         }
 207 }
 208
 209 void MetaInfoDialog::copyMetaInfoActionTriggered(void)
 210 {
 211         done(INT_MAX);
 212 }
 213
 214 void MetaInfoDialog::clearMetaInfoActionTriggered(void)
 215 {
 216         if(MetaInfoModel *model = dynamic_cast<MetaInfoModel*>(tableView->model()))
 217         {
 218                 model->clearData(true);
 219         }
 220 }
 221
 222 void MetaInfoDialog::clearArtworkActionTriggered(void)
 223 {
 224         labelArtwork->setPixmap(QPixmap::fromImage(QImage(":/images/CD.png")));
 225         dynamic_cast<MetaInfoModel*>(tableView->model())->editArtwork(QString());
 226 }
 227
 228 bool MetaInfoDialog::eventFilter(QObject *obj, QEvent *event)
 229 {
 230         if((obj == labelArtwork) && (event->type() == QEvent::MouseButtonDblClick))
 231         {
 232                 editButtonClicked();
 233                 return true;
 234         }
 235
 236         return QDialog::eventFilter(obj, event);
 237 }