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Diffstat (limited to 'juk/viewmode.cpp')
| -rw-r--r-- | juk/viewmode.cpp | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/juk/viewmode.cpp b/juk/viewmode.cpp new file mode 100644 index 00000000..4bd4b9d8 --- /dev/null +++ b/juk/viewmode.cpp @@ -0,0 +1,425 @@ +/*************************************************************************** + begin : Sat Jun 7 2003 + copyright : (C) 2003 - 2004 by Scott Wheeler, + email : wheeler@kde.org + ***************************************************************************/ + +/*************************************************************************** + * * + * 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. * + * * + ***************************************************************************/ + +#include <kiconloader.h> +#include <kstandarddirs.h> +#include <kdebug.h> + +#include <qpixmap.h> +#include <qpainter.h> +#include <qfile.h> +#include <qdir.h> +#include <qdatastream.h> + +#include "viewmode.h" +#include "playlistbox.h" +#include "searchplaylist.h" +#include "treeviewitemplaylist.h" +#include "collectionlist.h" + +//////////////////////////////////////////////////////////////////////////////// +// ViewMode +//////////////////////////////////////////////////////////////////////////////// + +ViewMode::ViewMode(PlaylistBox *b) : + QObject(b), + m_playlistBox(b), + m_visible(false), + m_needsRefresh(false) +{ + m_playlistBox->viewport()->installEventFilter(this); +} + +ViewMode::~ViewMode() +{ + +} + +void ViewMode::paintCell(PlaylistBox::Item *item, + QPainter *painter, + const QColorGroup &colorGroup, + int column, int width, int) +{ + if(width < item->pixmap(column)->width()) + return; + + if(m_needsRefresh) + updateHeights(); + + QFontMetrics fm = painter->fontMetrics(); + + int y = item->listView()->itemMargin() + border; + const QPixmap *pm = item->pixmap(column); + + if(item->isSelected()) { + + painter->eraseRect(0, 0, width, item->height()); + + QPen oldPen = painter->pen(); + QPen newPen = oldPen; + + newPen.setWidth(5); + newPen.setJoinStyle(RoundJoin); + newPen.setColor(QColorGroup::Highlight); + + painter->setPen(newPen); + painter->drawRect(border, border, width - border * 2, item->height() - border * 2 + 1); + painter->setPen(oldPen); + + painter->fillRect(border, border, width - border * 2, item->height() - border * 2 + 1, + colorGroup.brush(QColorGroup::Highlight)); + painter->setPen(colorGroup.highlightedText()); + } + else + painter->eraseRect(0, 0, width, item->height()); + + if (!pm->isNull()) { + int x = (width - pm->width()) / 2; + x = QMAX(x, item->listView()->itemMargin()); + painter->drawPixmap(x, y, *pm); + } + y += pm->height() + fm.height() - fm.descent(); + for(QStringList::Iterator it = m_lines[item].begin(); it != m_lines[item].end(); ++it) { + int x = (width - fm.width(*it)) / 2; + x = QMAX(x, item->listView()->itemMargin()); + painter->drawText(x, y, *it); + y += fm.height() - fm.descent(); + } + + if(item == item->listView()->dropItem()) + paintDropIndicator(painter, width, item->height()); +} + +bool ViewMode::eventFilter(QObject *watched, QEvent *e) +{ + if(m_visible && watched == m_playlistBox->viewport() && e->type() == QEvent::Resize) { + QResizeEvent *re = static_cast<QResizeEvent *>(e); + if(re->size().width() != re->oldSize().width()) + m_needsRefresh = true; + } + + if(e->type() == QEvent::Hide) + m_needsRefresh = true; + + return QObject::eventFilter(watched, e); +} + +void ViewMode::setShown(bool shown) +{ + m_visible = shown; + if(shown) { + updateIcons(32); + m_needsRefresh = true; + } +} + +void ViewMode::updateIcons(int size) +{ + for(QListViewItemIterator it(m_playlistBox); it.current(); ++it) { + PlaylistBox::Item *i = static_cast<PlaylistBox::Item *>(*it); + i->setPixmap(0, SmallIcon(i->iconName(), size)); + } +} + +void ViewMode::setupItem(PlaylistBox::Item *item) const +{ + const PlaylistBox *box = item->listView(); + const int width = box->width() - box->verticalScrollBar()->width() - border * 2; + const int baseHeight = 2 * box->itemMargin() + 32 + border * 2; + const QFontMetrics fm = box->fontMetrics(); + item->setHeight(baseHeight + (fm.height() - fm.descent()) * lines(item, fm, width).count()); +} + +void ViewMode::updateHeights() +{ + const int width = m_playlistBox->width() - m_playlistBox->verticalScrollBar()->width() - border * 2; + + const int baseHeight = 2 * m_playlistBox->itemMargin() + 32 + border * 2; + const QFontMetrics fm = m_playlistBox->fontMetrics(); + + for(QListViewItemIterator it(m_playlistBox); it.current(); ++it) { + PlaylistBox::Item *i = static_cast<PlaylistBox::Item *>(it.current()); + m_lines[i] = lines(i, fm, width); + const int height = baseHeight + (fm.height() - fm.descent()) * m_lines[i].count(); + i->setHeight(height); + } + + m_needsRefresh = false; +} + +void ViewMode::paintDropIndicator(QPainter *painter, int width, int height) // static +{ + static const int border = 1; + static const int lineWidth = 2; + + QPen oldPen = painter->pen(); + QPen newPen = oldPen; + + newPen.setWidth(lineWidth); + newPen.setStyle(DotLine); + + painter->setPen(newPen); + painter->drawRect(border, border, width - border * 2, height - border * 2); + painter->setPen(oldPen); +} + +QStringList ViewMode::lines(const PlaylistBox::Item *item, + const QFontMetrics &fm, + int width) +{ + // Here 32 is a bit arbitrary, but that's the width of the icons in this + // mode and seems to a reasonable lower bound. + + if(width < 32) + return QStringList(); + + QString line = item->text(); + + QStringList l; + + while(!line.isEmpty()) { + int textLength = line.length(); + while(textLength > 0 && + fm.width(line.mid(0, textLength).stripWhiteSpace()) + + item->listView()->itemMargin() * 2 > width) + { + int i = line.findRev(QRegExp( "\\W"), textLength - 1); + if(i > 0) + textLength = i; + else + textLength--; + } + + l.append(line.mid(0, textLength).stripWhiteSpace()); + line = line.mid(textLength); + } + return l; +} + +/////////////////////////////////////////////////////////////////////////////// +// CompactViewMode +//////////////////////////////////////////////////////////////////////////////// + +CompactViewMode::CompactViewMode(PlaylistBox *b) : ViewMode(b) +{ + +} + +CompactViewMode::~CompactViewMode() +{ + +} + +void CompactViewMode::paintCell(PlaylistBox::Item *item, + QPainter *painter, + const QColorGroup &colorGroup, + int column, int width, int align) +{ + item->KListViewItem::paintCell(painter, colorGroup, column, width, align); + if(item == item->listView()->dropItem()) + paintDropIndicator(painter, width, item->height()); +} + +void CompactViewMode::setShown(bool shown) +{ + setVisible(shown); + + if(shown) { + updateIcons(16); + updateHeights(); + } +} + +void CompactViewMode::updateHeights() +{ + for(QListViewItemIterator it(playlistBox()); it.current(); ++it) + it.current()->setup(); +} + +//////////////////////////////////////////////////////////////////////////////// +// TreeViewMode +//////////////////////////////////////////////////////////////////////////////// + +TreeViewMode::TreeViewMode(PlaylistBox *b) : CompactViewMode(b), + m_treeViewItems(5003, false), m_dynamicListsFrozen(false), m_setup(false) +{ + +} + +TreeViewMode::~TreeViewMode() +{ + +} + +void TreeViewMode::setShown(bool show) +{ + CompactViewMode::setShown(show); + + playlistBox()->setRootIsDecorated(show); + + if(show) { + PlaylistBox::Item *collectionItem = PlaylistBox::Item::collectionItem(); + + if(!collectionItem) + return; + + if(collectionItem && m_searchCategories.isEmpty()) + setupDynamicPlaylists(); + else { + for(QDictIterator<PlaylistBox::Item> it(m_searchCategories); it.current(); ++it) + it.current()->setVisible(true); + } + + if(!m_setup) { + m_setup = true; + playlistBox()->setSorting(-1); + CollectionList::instance()->setupTreeViewEntries(this); + playlistBox()->setSorting(0); + playlistBox()->sort(); + } + } + else { + for(QDictIterator<PlaylistBox::Item> it(m_searchCategories); it.current(); ++it) + it.current()->setVisible(false); + } +} + +void TreeViewMode::removeItem(const QString &item, unsigned column) +{ + if(!m_setup) + return; + + QString itemKey; + if(column == PlaylistItem::ArtistColumn) + itemKey = "artists" + item; + else if(column == PlaylistItem::GenreColumn) + itemKey = "genres" + item; + else if(column == PlaylistItem::AlbumColumn) + itemKey = "albums" + item; + else { + kdWarning() << k_funcinfo << "Unhandled column type " << column << endl; + return; + } + + if(!m_treeViewItems.find(itemKey)) + return; + + TreeViewItemPlaylist *itemPlaylist = m_treeViewItems[itemKey]; + + if(m_dynamicListsFrozen) { + m_pendingItemsToRemove << itemKey; + return; + } + + m_treeViewItems.remove(itemKey); + itemPlaylist->deleteLater(); + emit signalPlaylistDestroyed(itemPlaylist); +} + +void TreeViewMode::addItems(const QStringList &items, unsigned column) +{ + if(!m_setup) + return; + + QString searchCategory; + if(column == PlaylistItem::ArtistColumn) + searchCategory = "artists"; + else if(column == PlaylistItem::GenreColumn) + searchCategory = "genres"; + else if(column == PlaylistItem::AlbumColumn) + searchCategory = "albums"; + else { + kdWarning() << k_funcinfo << "Unhandled column type " << column << endl; + return; + } + + QValueList<int> columns; + columns.append(column); + + PlaylistSearch::Component::MatchMode mode = PlaylistSearch::Component::ContainsWord; + if(column != PlaylistItem::ArtistColumn) + mode = PlaylistSearch::Component::Exact; + + PlaylistSearch::ComponentList components; + PlaylistList playlists; + playlists.append(CollectionList::instance()); + + QString itemKey, item; + PlaylistBox::Item *itemParent = m_searchCategories[searchCategory]; + + for(QStringList::ConstIterator it = items.begin(); it != items.end(); ++it) { + item = *it; + itemKey = searchCategory + item; + + if(m_treeViewItems.find(itemKey)) + continue; + + components.clear(); + components.append(PlaylistSearch::Component(item, false, columns, mode)); + + PlaylistSearch s(playlists, components, PlaylistSearch::MatchAny, false); + + TreeViewItemPlaylist *p = new TreeViewItemPlaylist(playlistBox(), s, item); + playlistBox()->setupPlaylist(p, "midi", itemParent); + m_treeViewItems.insert(itemKey, p); + } +} + +void TreeViewMode::setDynamicListsFrozen(bool frozen) +{ + m_dynamicListsFrozen = frozen; + + if(frozen) + return; + + QStringList categories; + categories << "artists" << "albums" << "genres"; + + for(QStringList::ConstIterator it = m_pendingItemsToRemove.begin(); + it != m_pendingItemsToRemove.end(); + ++it) + { + m_treeViewItems[*it]->deleteLater(); + m_treeViewItems.remove(*it); + } + + m_pendingItemsToRemove.clear(); +} + +void TreeViewMode::setupDynamicPlaylists() +{ + PlaylistBox::Item *i; + PlaylistBox::Item *collectionItem = PlaylistBox::Item::collectionItem(); + + i = new PlaylistBox::Item(collectionItem, "cdimage", i18n("Artists")); + m_searchCategories.insert("artists", i); + + i = new PlaylistBox::Item(collectionItem, "cdimage", i18n("Albums")); + m_searchCategories.insert("albums", i); + + i = new PlaylistBox::Item(collectionItem, "cdimage", i18n("Genres")); + m_searchCategories.insert("genres", i); +} + +//////////////////////////////////////////////////////////////////////////////// +// CoverManagerMode +//////////////////////////////////////////////////////////////////////////////// + +CoverManagerMode::CoverManagerMode(PlaylistBox *b) : ViewMode(b) +{ + +} + +#include "viewmode.moc" |