void ShadowEffect::draw(QPainter *painter)
{
if (m_blurRadius < 0 && qFuzzyIsNull(m_xOffset) && qFuzzyIsNull(m_yOffset)) {
drawSource(painter);
return;
}
PixmapPadMode mode = PadToEffectiveBoundingRect;
if (painter->paintEngine()->type() == QPaintEngine::OpenGL2) {
mode = NoPad;
}
// Draw pixmap in device coordinates to avoid pixmap scaling.
QPoint offset;
const QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset, mode);
if (pixmap.isNull()) {
return;
}
QTransform restoreTransform = painter->worldTransform();
painter->setWorldTransform(QTransform());
if (m_shadow.isNull()) {
m_shadow = generateShadow(pixmap);
}
// Draw shadow (draw it twice to darken it)
painter->drawImage(offset, m_shadow);
painter->drawImage(offset, m_shadow);
// Draw the actual pixmap
painter->drawPixmap(offset, pixmap);
painter->setWorldTransform(restoreTransform);
}
KNMusicAlbumView::KNMusicAlbumView(QWidget *parent) :
QAbstractItemView(parent),
m_shadowSource(QPixmap("://public/shadow.png")),
m_albumArtShadow(QPixmap()),
m_albumBase(QPixmap(":/plugin/music/public/base.png")),
m_scaledAlbumBase(QPixmap()),
m_noAlbumArt(knMusicGlobal->noAlbumArt()),
m_scaledNoAlbumArt(QPixmap()),
m_nullIndex(QModelIndex()),
m_selectedIndex(m_nullIndex),
m_mouseDownIndex(m_nullIndex),
m_scrollAnime(new QTimeLine(200, this)),
m_proxyModel(nullptr),
m_model(nullptr),
m_albumDetail(nullptr),
m_itemWidth(135),
m_itemMinimalSpacing(30),
m_minimalWidth(m_itemMinimalSpacing+m_itemWidth),
m_lineCount(0),
m_textSpacing(5),
m_itemHeight(154),
m_spacing(30),
m_itemSpacingHeight(m_spacing+m_itemHeight),
m_itemSpacingWidth(m_spacing+m_itemWidth),
m_maxColumnCount(0)
{
setObjectName("MusicAlbumView");
//Set properties.
setFocusPolicy(Qt::WheelFocus);
//Set default scrollbar properties.
verticalScrollBar()->setRange(0, 0);
//Set the palette.
knTheme->registerWidget(this);
//Configure the timeline.
m_scrollAnime->setUpdateInterval(10);
m_scrollAnime->setEasingCurve(QEasingCurve::OutCubic);
connect(m_scrollAnime, &QTimeLine::frameChanged,
verticalScrollBar(), &QScrollBar::setValue);
//Link the scrolling event.
connect(verticalScrollBar(), &QScrollBar::valueChanged,
this, &KNMusicAlbumView::onActionScrolling);
//The icon size should be the item width.
//Update the painting parameters.
updateUIElements();
//Generate the album art shadow pixmap.
int shadowSize=m_itemWidth+(m_shadowIncrease<<1);
//Update album art shadow.
m_albumArtShadow=generateShadow(shadowSize, shadowSize);
//Update the album base.
m_scaledAlbumBase=m_albumBase.scaled(m_itemWidth,
m_itemWidth,
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
//Update the no album art.
m_scaledNoAlbumArt=m_noAlbumArt.scaled(m_itemWidth,
m_itemWidth,
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
//The height of the item should be a item icon size and two text lines.
m_itemHeight=m_itemWidth+(fontMetrics().height()<<1);
//Link the search.
connect(knMusicGlobal->search(), &KNMusicSearchBase::requireSearch,
this, &KNMusicAlbumView::onActionSearch);
//Set the search shortcut.
QAction *searchAction=new QAction(this);
searchAction->setShortcut(QKeySequence(Qt::CTRL+Qt::Key_F));
searchAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
connect(searchAction, &QAction::triggered,
[=]
{
//Check whether the search plugin is loaded.
if(knMusicGlobal->search())
{
knMusicGlobal->search()->onActionSearchShortcut(this);
}
});
addAction(searchAction);
//Link the locale manager.
knI18n->link(this, &KNMusicAlbumView::retranslate);
retranslate();
}
