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tdemultimedia/juk/viewmode.cpp

426 lines
12 KiB

/***************************************************************************
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 <tqpixmap.h>
#include <tqpainter.h>
#include <tqfile.h>
#include <tqdir.h>
#include <tqdatastream.h>
#include "viewmode.h"
#include "playlistbox.h"
#include "searchplaylist.h"
#include "treeviewitemplaylist.h"
#include "collectionlist.h"
////////////////////////////////////////////////////////////////////////////////
// ViewMode
////////////////////////////////////////////////////////////////////////////////
ViewMode::ViewMode(PlaylistBox *b) :
TQObject(b),
m_playlistBox(b),
m_visible(false),
m_needsRefresh(false)
{
m_playlistBox->viewport()->installEventFilter(this);
}
ViewMode::~ViewMode()
{
}
void ViewMode::paintCell(PlaylistBox::Item *item,
TQPainter *painter,
const TQColorGroup &tqcolorGroup,
int column, int width, int)
{
if(width < item->pixmap(column)->width())
return;
if(m_needsRefresh)
updateHeights();
TQFontMetrics fm = painter->fontMetrics();
int y = item->listView()->itemMargin() + border;
const TQPixmap *pm = item->pixmap(column);
if(item->isSelected()) {
painter->eraseRect(0, 0, width, item->height());
TQPen oldPen = painter->pen();
TQPen newPen = oldPen;
newPen.setWidth(5);
newPen.setJoinStyle(Qt::RoundJoin);
newPen.setColor(TQColorGroup::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,
tqcolorGroup.brush(TQColorGroup::Highlight));
painter->setPen(tqcolorGroup.highlightedText());
}
else
painter->eraseRect(0, 0, width, item->height());
if (!pm->isNull()) {
int x = (width - pm->width()) / 2;
x = TQMAX(x, item->listView()->itemMargin());
painter->drawPixmap(x, y, *pm);
}
y += pm->height() + fm.height() - fm.descent();
for(TQStringList::Iterator it = m_lines[item].begin(); it != m_lines[item].end(); ++it) {
int x = (width - fm.width(*it)) / 2;
x = TQMAX(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(TQObject *watched, TQEvent *e)
{
if(m_visible && TQT_BASE_OBJECT(watched) == TQT_BASE_OBJECT(m_playlistBox->viewport()) && e->type() == TQEvent::Resize) {
TQResizeEvent *re = TQT_TQRESIZEEVENT(e);
if(re->size().width() != re->oldSize().width())
m_needsRefresh = true;
}
if(e->type() == TQEvent::Hide)
m_needsRefresh = true;
return TQObject::eventFilter(watched, e);
}
void ViewMode::setShown(bool shown)
{
m_visible = shown;
if(shown) {
updateIcons(32);
m_needsRefresh = true;
}
}
void ViewMode::updateIcons(int size)
{
for(TQListViewItemIterator 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 TQFontMetrics 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 TQFontMetrics fm = m_playlistBox->fontMetrics();
for(TQListViewItemIterator 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(TQPainter *painter, int width, int height) // static
{
static const int border = 1;
static const int lineWidth = 2;
TQPen oldPen = painter->pen();
TQPen newPen = oldPen;
newPen.setWidth(lineWidth);
newPen.setStyle(Qt::DotLine);
painter->setPen(newPen);
painter->drawRect(border, border, width - border * 2, height - border * 2);
painter->setPen(oldPen);
}
TQStringList ViewMode::lines(const PlaylistBox::Item *item,
const TQFontMetrics &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 TQStringList();
TQString line = item->text();
TQStringList 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.tqfindRev(TQRegExp( "\\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,
TQPainter *painter,
const TQColorGroup &tqcolorGroup,
int column, int width, int align)
{
item->KListViewItem::paintCell(painter, tqcolorGroup, 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(TQListViewItemIterator 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(TQDictIterator<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(TQDictIterator<PlaylistBox::Item> it(m_searchCategories); it.current(); ++it)
it.current()->setVisible(false);
}
}
void TreeViewMode::removeItem(const TQString &item, unsigned column)
{
if(!m_setup)
return;
TQString 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.tqfind(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 TQStringList &items, unsigned column)
{
if(!m_setup)
return;
TQString 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;
}
TQValueList<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());
TQString itemKey, item;
PlaylistBox::Item *itemParent = m_searchCategories[searchCategory];
for(TQStringList::ConstIterator it = items.begin(); it != items.end(); ++it) {
item = *it;
itemKey = searchCategory + item;
if(m_treeViewItems.tqfind(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;
TQStringList categories;
categories << "artists" << "albums" << "genres";
for(TQStringList::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"